4487 lines
215 KiB
C
4487 lines
215 KiB
C
/* gameplaySP
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*
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* Copyright (C) 2006 Exophase <exophase@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "common.h"
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u16* gba_screen_pixels = NULL;
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#define get_screen_pixels() gba_screen_pixels
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#define get_screen_pitch() GBA_SCREEN_PITCH
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static void render_scanline_conditional_tile(u32 start, u32 end, u16 *scanline,
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u32 enable_flags, u32 dispcnt, u32 bldcnt, const tile_layer_render_struct
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*layer_renderers);
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static void render_scanline_conditional_bitmap(u32 start, u32 end, u16 *scanline,
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u32 enable_flags, u32 dispcnt, u32 bldcnt, const bitmap_layer_render_struct
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*layer_renderers);
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#define no_op \
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// This old version is not necessary if the palette is either being converted
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// transparently or the ABGR 1555 format is being used natively. The direct
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// version (without conversion) is much faster.
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#define tile_lookup_palette_full(palette, source) \
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current_pixel = palette[source]; \
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convert_palette(current_pixel) \
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#define tile_lookup_palette(palette, source) \
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current_pixel = palette[source]; \
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#define tile_expand_base_normal(index) \
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tile_lookup_palette(palette, current_pixel); \
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dest_ptr[index] = current_pixel \
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#define tile_expand_transparent_normal(index) \
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tile_expand_base_normal(index) \
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#define tile_expand_copy(index) \
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dest_ptr[index] = copy_ptr[index] \
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#define advance_dest_ptr_base(delta) \
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dest_ptr += delta \
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#define advance_dest_ptr_transparent(delta) \
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advance_dest_ptr_base(delta) \
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#define advance_dest_ptr_copy(delta) \
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advance_dest_ptr_base(delta); \
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copy_ptr += delta \
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#define color_combine_mask_a(layer) \
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((io_registers[REG_BLDCNT] >> layer) & 0x01) \
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// For color blending operations, will create a mask that has in bit
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// 10 if the layer is target B, and bit 9 if the layer is target A.
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#define color_combine_mask(layer) \
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(color_combine_mask_a(layer) | \
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((io_registers[REG_BLDCNT] >> (layer + 7)) & 0x02)) << 9 \
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// For alpha blending renderers, draw the palette index (9bpp) and
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// layer bits rather than the raw RGB. For the base this should write to
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// the 32bit location directly.
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#define tile_expand_base_alpha(index) \
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dest_ptr[index] = current_pixel | pixel_combine \
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#define tile_expand_base_bg(index) \
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dest_ptr[index] = bg_combine \
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// For layered (transparent) writes this should shift the "stack" and write
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// to the bottom. This will preserve the topmost pixel and the most recent
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// one.
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#define tile_expand_transparent_alpha(index) \
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dest_ptr[index] = (dest_ptr[index] << 16) | current_pixel | pixel_combine \
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// OBJ should only shift if the top isn't already OBJ
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#define tile_expand_transparent_alpha_obj(index) \
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dest = dest_ptr[index]; \
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if(dest & 0x00000100) \
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dest_ptr[index] = (dest & 0xFFFF0000) | current_pixel | pixel_combine; \
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else \
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dest_ptr[index] = (dest << 16) | current_pixel | pixel_combine; \
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// For color effects that don't need to preserve the previous layer.
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// The color32 version should be used with 32bit wide dest_ptr so as to be
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// compatible with alpha combine on top of it.
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#define tile_expand_base_color16(index) \
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dest_ptr[index] = current_pixel | pixel_combine \
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#define tile_expand_transparent_color16(index) \
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tile_expand_base_color16(index) \
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#define tile_expand_base_color32(index) \
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tile_expand_base_color16(index) \
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#define tile_expand_transparent_color32(index) \
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tile_expand_base_color16(index) \
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// Operations for isolation 8bpp pixels within 32bpp pixel blocks.
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#define tile_8bpp_pixel_op_mask(op_param) \
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current_pixel = current_pixels & 0xFF \
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#define tile_8bpp_pixel_op_shift_mask(shift) \
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current_pixel = (current_pixels >> shift) & 0xFF \
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#define tile_8bpp_pixel_op_shift(shift) \
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current_pixel = current_pixels >> shift \
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#define tile_8bpp_pixel_op_none(shift) \
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// Base should always draw raw in 8bpp mode; color 0 will be drawn where
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// color 0 is.
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#define tile_8bpp_draw_base_normal(index) \
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tile_expand_base_normal(index) \
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#define tile_8bpp_draw_base_alpha(index) \
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if(current_pixel) \
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{ \
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tile_expand_base_alpha(index); \
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} \
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else \
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{ \
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tile_expand_base_bg(index); \
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} \
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#define tile_8bpp_draw_base_color16(index) \
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tile_8bpp_draw_base_alpha(index) \
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#define tile_8bpp_draw_base_color32(index) \
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tile_8bpp_draw_base_alpha(index) \
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#define tile_8bpp_draw_base(index, op, op_param, alpha_op) \
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tile_8bpp_pixel_op_##op(op_param); \
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tile_8bpp_draw_base_##alpha_op(index) \
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// Transparent (layered) writes should only replace what is there if the
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// pixel is not transparent (zero)
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#define tile_8bpp_draw_transparent(index, op, op_param, alpha_op) \
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tile_8bpp_pixel_op_##op(op_param); \
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if(current_pixel) \
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{ \
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tile_expand_transparent_##alpha_op(index); \
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} \
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#define tile_8bpp_draw_copy(index, op, op_param, alpha_op) \
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tile_8bpp_pixel_op_##op(op_param); \
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if(current_pixel) \
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{ \
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tile_expand_copy(index); \
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} \
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// Get the current tile from the map in 8bpp mode
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#define get_tile_8bpp() \
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current_tile = *map_ptr; \
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tile_ptr = tile_base + ((current_tile & 0x3FF) * 64) \
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// Draw half of a tile in 8bpp mode, for base renderer
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#define tile_8bpp_draw_four_noflip(index, combine_op, alpha_op) \
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tile_8bpp_draw_##combine_op(index + 0, mask, 0, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 1, shift_mask, 8, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 2, shift_mask, 16, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 3, shift, 24, alpha_op) \
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// Like the above, but draws the half-tile horizontally flipped
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#define tile_8bpp_draw_four_flip(index, combine_op, alpha_op) \
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tile_8bpp_draw_##combine_op(index + 3, mask, 0, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 2, shift_mask, 8, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 1, shift_mask, 16, alpha_op); \
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tile_8bpp_draw_##combine_op(index + 0, shift, 24, alpha_op) \
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#define tile_8bpp_draw_four_base(index, alpha_op, flip_op) \
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tile_8bpp_draw_four_##flip_op(index, base, alpha_op) \
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// Draw half of a tile in 8bpp mode, for transparent renderer; as an
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// optimization the entire thing is checked against zero (in transparent
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// capable renders it is more likely for the pixels to be transparent than
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// opaque)
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#define tile_8bpp_draw_four_transparent(index, alpha_op, flip_op) \
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if(current_pixels != 0) \
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{ \
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tile_8bpp_draw_four_##flip_op(index, transparent, alpha_op); \
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} \
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#define tile_8bpp_draw_four_copy(index, alpha_op, flip_op) \
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if(current_pixels != 0) \
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{ \
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tile_8bpp_draw_four_##flip_op(index, copy, alpha_op); \
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} \
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// Helper macro for drawing 8bpp tiles clipped against the edge of the screen
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#define partial_tile_8bpp(combine_op, alpha_op) \
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for(i = 0; i < partial_tile_run; i++) \
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{ \
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tile_8bpp_draw_##combine_op(0, mask, 0, alpha_op); \
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current_pixels >>= 8; \
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advance_dest_ptr_##combine_op(1); \
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} \
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// Draws 8bpp tiles clipped against the left side of the screen,
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// partial_tile_offset indicates how much clipped in it is, partial_tile_run
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// indicates how much it should draw.
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#define partial_tile_right_noflip_8bpp(combine_op, alpha_op) \
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if(partial_tile_offset >= 4) \
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{ \
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current_pixels = *((u32 *)(tile_ptr + 4)) >> \
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((partial_tile_offset - 4) * 8); \
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partial_tile_8bpp(combine_op, alpha_op); \
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} \
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else \
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{ \
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partial_tile_run -= 4; \
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current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 8); \
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partial_tile_8bpp(combine_op, alpha_op); \
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
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advance_dest_ptr_##combine_op(4); \
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} \
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// Draws 8bpp tiles clipped against both the left and right side of the
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// screen, IE, runs of less than 8 - partial_tile_offset.
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#define partial_tile_mid_noflip_8bpp(combine_op, alpha_op) \
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if(partial_tile_offset >= 4) \
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{ \
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current_pixels = *((u32 *)(tile_ptr + 4)) >> \
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((partial_tile_offset - 4) * 8); \
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} \
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else \
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{ \
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current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 8); \
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if((partial_tile_offset + partial_tile_run) > 4) \
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{ \
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u32 old_run = partial_tile_run; \
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partial_tile_run = 4 - partial_tile_offset; \
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partial_tile_8bpp(combine_op, alpha_op); \
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partial_tile_run = old_run - partial_tile_run; \
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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} \
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} \
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partial_tile_8bpp(combine_op, alpha_op); \
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// Draws 8bpp tiles clipped against the right side of the screen,
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// partial_tile_run indicates how much there is to draw.
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#define partial_tile_left_noflip_8bpp(combine_op, alpha_op) \
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if(partial_tile_run >= 4) \
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{ \
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current_pixels = *((u32 *)tile_ptr); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
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advance_dest_ptr_##combine_op(4); \
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tile_ptr += 4; \
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partial_tile_run -= 4; \
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} \
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\
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current_pixels = *((u32 *)(tile_ptr)); \
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partial_tile_8bpp(combine_op, alpha_op) \
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// Draws a non-clipped (complete) 8bpp tile.
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#define tile_noflip_8bpp(combine_op, alpha_op) \
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current_pixels = *((u32 *)tile_ptr); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, noflip); \
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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tile_8bpp_draw_four_##combine_op(4, alpha_op, noflip) \
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// Like the above versions but draws flipped tiles.
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#define partial_tile_flip_8bpp(combine_op, alpha_op) \
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for(i = 0; i < partial_tile_run; i++) \
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{ \
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tile_8bpp_draw_##combine_op(0, shift, 24, alpha_op); \
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current_pixels <<= 8; \
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advance_dest_ptr_##combine_op(1); \
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} \
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#define partial_tile_right_flip_8bpp(combine_op, alpha_op) \
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if(partial_tile_offset >= 4) \
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{ \
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current_pixels = *((u32 *)tile_ptr) << ((partial_tile_offset - 4) * 8); \
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partial_tile_flip_8bpp(combine_op, alpha_op); \
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} \
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else \
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{ \
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partial_tile_run -= 4; \
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current_pixels = *((u32 *)(tile_ptr + 4)) << \
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((partial_tile_offset - 4) * 8); \
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partial_tile_flip_8bpp(combine_op, alpha_op); \
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current_pixels = *((u32 *)tile_ptr); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
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advance_dest_ptr_##combine_op(4); \
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} \
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#define partial_tile_mid_flip_8bpp(combine_op, alpha_op) \
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if(partial_tile_offset >= 4) \
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current_pixels = *((u32 *)tile_ptr) << ((partial_tile_offset - 4) * 8); \
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else \
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{ \
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current_pixels = *((u32 *)(tile_ptr + 4)) << \
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((partial_tile_offset - 4) * 8); \
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\
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if((partial_tile_offset + partial_tile_run) > 4) \
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{ \
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u32 old_run = partial_tile_run; \
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partial_tile_run = 4 - partial_tile_offset; \
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partial_tile_flip_8bpp(combine_op, alpha_op); \
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partial_tile_run = old_run - partial_tile_run; \
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current_pixels = *((u32 *)(tile_ptr)); \
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} \
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} \
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partial_tile_flip_8bpp(combine_op, alpha_op); \
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#define partial_tile_left_flip_8bpp(combine_op, alpha_op) \
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if(partial_tile_run >= 4) \
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{ \
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
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advance_dest_ptr_##combine_op(4); \
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tile_ptr -= 4; \
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partial_tile_run -= 4; \
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} \
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\
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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partial_tile_flip_8bpp(combine_op, alpha_op) \
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#define tile_flip_8bpp(combine_op, alpha_op) \
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current_pixels = *((u32 *)(tile_ptr + 4)); \
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tile_8bpp_draw_four_##combine_op(0, alpha_op, flip); \
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current_pixels = *((u32 *)tile_ptr); \
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tile_8bpp_draw_four_##combine_op(4, alpha_op, flip) \
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// Operations for isolating 4bpp tiles in a 32bit block
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#define tile_4bpp_pixel_op_mask(op_param) \
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current_pixel = current_pixels & 0x0F \
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#define tile_4bpp_pixel_op_shift_mask(shift) \
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current_pixel = (current_pixels >> shift) & 0x0F \
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#define tile_4bpp_pixel_op_shift(shift) \
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current_pixel = current_pixels >> shift \
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#define tile_4bpp_pixel_op_none(op_param) \
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// Draws a single 4bpp pixel as base, normal renderer; checks to see if the
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// pixel is zero because if so the current palette should not be applied.
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// These ifs can be replaced with a lookup table, may or may not be superior
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// this way, should be benchmarked. The lookup table would be from 0-255
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// identity map except for multiples of 16, which would map to 0.
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#define tile_4bpp_draw_base_normal(index) \
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if(current_pixel) \
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current_pixel |= current_palette; \
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tile_expand_base_normal(index); \
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#define tile_4bpp_draw_base_alpha(index) \
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if(current_pixel) \
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{ \
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current_pixel |= current_palette; \
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tile_expand_base_alpha(index); \
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} \
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else \
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{ \
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tile_expand_base_bg(index); \
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} \
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#define tile_4bpp_draw_base_color16(index) \
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tile_4bpp_draw_base_alpha(index) \
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#define tile_4bpp_draw_base_color32(index) \
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tile_4bpp_draw_base_alpha(index) \
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#define tile_4bpp_draw_base(index, op, op_param, alpha_op) \
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tile_4bpp_pixel_op_##op(op_param); \
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tile_4bpp_draw_base_##alpha_op(index) \
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// Draws a single 4bpp pixel as layered, if not transparent.
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#define tile_4bpp_draw_transparent(index, op, op_param, alpha_op) \
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tile_4bpp_pixel_op_##op(op_param); \
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if(current_pixel) \
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{ \
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current_pixel |= current_palette; \
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tile_expand_transparent_##alpha_op(index); \
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} \
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#define tile_4bpp_draw_copy(index, op, op_param, alpha_op) \
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tile_4bpp_pixel_op_##op(op_param); \
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if(current_pixel) \
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{ \
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current_pixel |= current_palette; \
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tile_expand_copy(index); \
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} \
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// Draws eight background pixels in transparent mode, for alpha or normal
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// renderers.
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#define tile_4bpp_draw_eight_base_zero(value) \
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dest_ptr[0] = value; \
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dest_ptr[1] = value; \
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dest_ptr[2] = value; \
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dest_ptr[3] = value; \
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dest_ptr[4] = value; \
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dest_ptr[5] = value; \
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dest_ptr[6] = value; \
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dest_ptr[7] = value \
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// Draws eight background pixels for the alpha renderer, basically color zero
|
|
// with the background flag high.
|
|
|
|
#define tile_4bpp_draw_eight_base_zero_alpha() \
|
|
tile_4bpp_draw_eight_base_zero(bg_combine) \
|
|
|
|
#define tile_4bpp_draw_eight_base_zero_color16() \
|
|
tile_4bpp_draw_eight_base_zero_alpha() \
|
|
|
|
#define tile_4bpp_draw_eight_base_zero_color32() \
|
|
tile_4bpp_draw_eight_base_zero_alpha() \
|
|
|
|
|
|
// Draws eight background pixels for the normal renderer, just a bunch of
|
|
// zeros.
|
|
|
|
#define tile_4bpp_draw_eight_base_zero_normal() \
|
|
current_pixel = palette[0]; \
|
|
tile_4bpp_draw_eight_base_zero(current_pixel) \
|
|
|
|
|
|
// Draws eight 4bpp pixels.
|
|
|
|
#define tile_4bpp_draw_eight_noflip(combine_op, alpha_op) \
|
|
tile_4bpp_draw_##combine_op(0, mask, 0, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(1, shift_mask, 4, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(2, shift_mask, 8, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(3, shift_mask, 12, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(4, shift_mask, 16, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(5, shift_mask, 20, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(6, shift_mask, 24, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(7, shift, 28, alpha_op) \
|
|
|
|
|
|
// Draws eight 4bpp pixels in reverse order (for hflip).
|
|
|
|
#define tile_4bpp_draw_eight_flip(combine_op, alpha_op) \
|
|
tile_4bpp_draw_##combine_op(7, mask, 0, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(6, shift_mask, 4, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(5, shift_mask, 8, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(4, shift_mask, 12, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(3, shift_mask, 16, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(2, shift_mask, 20, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(1, shift_mask, 24, alpha_op); \
|
|
tile_4bpp_draw_##combine_op(0, shift, 28, alpha_op) \
|
|
|
|
|
|
// Draws eight 4bpp pixels in base mode, checks if all are zero, if so draws
|
|
// the appropriate background pixels.
|
|
|
|
#define tile_4bpp_draw_eight_base(alpha_op, flip_op) \
|
|
if(current_pixels != 0) \
|
|
{ \
|
|
tile_4bpp_draw_eight_##flip_op(base, alpha_op); \
|
|
} \
|
|
else \
|
|
{ \
|
|
tile_4bpp_draw_eight_base_zero_##alpha_op(); \
|
|
} \
|
|
|
|
|
|
// Draws eight 4bpp pixels in transparent (layered) mode, checks if all are
|
|
// zero and if so draws nothing.
|
|
|
|
#define tile_4bpp_draw_eight_transparent(alpha_op, flip_op) \
|
|
if(current_pixels != 0) \
|
|
{ \
|
|
tile_4bpp_draw_eight_##flip_op(transparent, alpha_op); \
|
|
} \
|
|
|
|
|
|
#define tile_4bpp_draw_eight_copy(alpha_op, flip_op) \
|
|
if(current_pixels != 0) \
|
|
{ \
|
|
tile_4bpp_draw_eight_##flip_op(copy, alpha_op); \
|
|
} \
|
|
|
|
// Gets the current tile in 4bpp mode, also getting the current palette and
|
|
// the pixel block.
|
|
|
|
#define get_tile_4bpp() \
|
|
current_tile = *map_ptr; \
|
|
current_palette = (current_tile >> 12) << 4; \
|
|
tile_ptr = tile_base + ((current_tile & 0x3FF) * 32); \
|
|
|
|
|
|
// Helper macro for drawing clipped 4bpp tiles.
|
|
|
|
#define partial_tile_4bpp(combine_op, alpha_op) \
|
|
for(i = 0; i < partial_tile_run; i++) \
|
|
{ \
|
|
tile_4bpp_draw_##combine_op(0, mask, 0, alpha_op); \
|
|
current_pixels >>= 4; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
|
|
|
|
// Draws a 4bpp tile clipped against the left edge of the screen.
|
|
// partial_tile_offset is how far in it's clipped, partial_tile_run is
|
|
// how many to draw.
|
|
|
|
#define partial_tile_right_noflip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr) >> (partial_tile_offset * 4); \
|
|
partial_tile_4bpp(combine_op, alpha_op) \
|
|
|
|
|
|
// Draws a 4bpp tile clipped against both edges of the screen, same as right.
|
|
|
|
#define partial_tile_mid_noflip_4bpp(combine_op, alpha_op) \
|
|
partial_tile_right_noflip_4bpp(combine_op, alpha_op) \
|
|
|
|
|
|
// Draws a 4bpp tile clipped against the right edge of the screen.
|
|
// partial_tile_offset is how many to draw.
|
|
|
|
#define partial_tile_left_noflip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr); \
|
|
partial_tile_4bpp(combine_op, alpha_op) \
|
|
|
|
|
|
// Draws a complete 4bpp tile row (not clipped)
|
|
#define tile_noflip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr); \
|
|
tile_4bpp_draw_eight_##combine_op(alpha_op, noflip) \
|
|
|
|
|
|
// Like the above, but draws flipped tiles.
|
|
|
|
#define partial_tile_flip_4bpp(combine_op, alpha_op) \
|
|
for(i = 0; i < partial_tile_run; i++) \
|
|
{ \
|
|
tile_4bpp_draw_##combine_op(0, shift, 28, alpha_op); \
|
|
current_pixels <<= 4; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
|
|
#define partial_tile_right_flip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr) << (partial_tile_offset * 4); \
|
|
partial_tile_flip_4bpp(combine_op, alpha_op) \
|
|
|
|
#define partial_tile_mid_flip_4bpp(combine_op, alpha_op) \
|
|
partial_tile_right_flip_4bpp(combine_op, alpha_op) \
|
|
|
|
#define partial_tile_left_flip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr); \
|
|
partial_tile_flip_4bpp(combine_op, alpha_op) \
|
|
|
|
#define tile_flip_4bpp(combine_op, alpha_op) \
|
|
current_pixels = *((u32 *)tile_ptr); \
|
|
tile_4bpp_draw_eight_##combine_op(alpha_op, flip) \
|
|
|
|
|
|
// Draws a single (partial or complete) tile from the tilemap, flipping
|
|
// as necessary.
|
|
|
|
#define single_tile_map(tile_type, combine_op, color_depth, alpha_op) \
|
|
get_tile_##color_depth(); \
|
|
if(current_tile & 0x800) \
|
|
tile_ptr += vertical_pixel_flip; \
|
|
\
|
|
if(current_tile & 0x400) \
|
|
{ \
|
|
tile_type##_flip_##color_depth(combine_op, alpha_op); \
|
|
} \
|
|
else \
|
|
{ \
|
|
tile_type##_noflip_##color_depth(combine_op, alpha_op); \
|
|
} \
|
|
|
|
#define single_tile_map_base_4bpp_color16(tile_type) \
|
|
get_tile_4bpp(); \
|
|
if(current_tile & 0x800) \
|
|
tile_ptr += vertical_pixel_flip; \
|
|
\
|
|
if(current_tile & 0x400) \
|
|
{ \
|
|
tile_type##_flip_4bpp(base, color16); \
|
|
} \
|
|
else \
|
|
{ \
|
|
tile_type##_noflip_4bpp(base, color16); \
|
|
} \
|
|
|
|
|
|
// Draws multiple sequential tiles from the tilemap, hflips and vflips as
|
|
// necessary.
|
|
|
|
#define multiple_tile_map(combine_op, color_depth, alpha_op) \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, combine_op, color_depth, alpha_op); \
|
|
advance_dest_ptr_##combine_op(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_transparent_8bpp_color16() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, transparent, 8bpp, color16); \
|
|
advance_dest_ptr_transparent(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_transparent_4bpp_color16() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, transparent, 4bpp, color16); \
|
|
advance_dest_ptr_transparent(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_base_8bpp_color16() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, base, 8bpp, color16); \
|
|
advance_dest_ptr_base(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_base_4bpp_color16() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map_base_4bpp_color16(tile); \
|
|
advance_dest_ptr_base(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_transparent_8bpp_normal() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, transparent, 8bpp, normal); \
|
|
advance_dest_ptr_transparent(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_transparent_4bpp_normal() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, transparent, 4bpp, normal); \
|
|
advance_dest_ptr_transparent(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_base_8bpp_normal() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, base, 8bpp, normal); \
|
|
advance_dest_ptr_base(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
#define multiple_tile_map_base_4bpp_normal() \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
single_tile_map(tile, base, 4bpp, normal); \
|
|
advance_dest_ptr_base(8); \
|
|
map_ptr++; \
|
|
} \
|
|
|
|
// Draws a partial tile from a tilemap clipped against the left edge of the
|
|
// screen.
|
|
|
|
#define partial_tile_right_map(combine_op, color_depth, alpha_op) \
|
|
single_tile_map(partial_tile_right, combine_op, color_depth, alpha_op); \
|
|
map_ptr++ \
|
|
|
|
// Draws a partial tile from a tilemap clipped against both edges of the
|
|
// screen.
|
|
|
|
#define partial_tile_mid_map(combine_op, color_depth, alpha_op) \
|
|
single_tile_map(partial_tile_mid, combine_op, color_depth, alpha_op) \
|
|
|
|
// Draws a partial tile from a tilemap clipped against the right edge of the
|
|
// screen.
|
|
|
|
#define partial_tile_left_map(combine_op, color_depth, alpha_op) \
|
|
single_tile_map(partial_tile_left, combine_op, color_depth, alpha_op) \
|
|
|
|
|
|
// Advances a non-flipped 4bpp obj to the next tile.
|
|
|
|
#define obj_advance_noflip_4bpp() \
|
|
tile_ptr += 32 \
|
|
|
|
|
|
// Advances a non-flipped 8bpp obj to the next tile.
|
|
|
|
#define obj_advance_noflip_8bpp() \
|
|
tile_ptr += 64 \
|
|
|
|
|
|
// Advances a flipped 4bpp obj to the next tile.
|
|
|
|
#define obj_advance_flip_4bpp() \
|
|
tile_ptr -= 32 \
|
|
|
|
|
|
// Advances a flipped 8bpp obj to the next tile.
|
|
|
|
#define obj_advance_flip_8bpp() \
|
|
tile_ptr -= 64 \
|
|
|
|
|
|
|
|
// Draws multiple sequential tiles from an obj, flip_op determines if it should
|
|
// be flipped or not (set to flip or noflip)
|
|
|
|
#define multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op) \
|
|
for(i = 0; i < tile_run; i++) \
|
|
{ \
|
|
tile_##flip_op##_##color_depth(combine_op, alpha_op); \
|
|
obj_advance_##flip_op##_##color_depth(); \
|
|
advance_dest_ptr_##combine_op(8); \
|
|
} \
|
|
|
|
|
|
// Draws an obj's tile clipped against the left side of the screen
|
|
|
|
#define partial_tile_right_obj(combine_op, color_depth, alpha_op, flip_op) \
|
|
partial_tile_right_##flip_op##_##color_depth(combine_op, alpha_op); \
|
|
obj_advance_##flip_op##_##color_depth() \
|
|
|
|
// Draws an obj's tile clipped against both sides of the screen
|
|
|
|
#define partial_tile_mid_obj(combine_op, color_depth, alpha_op, flip_op) \
|
|
partial_tile_mid_##flip_op##_##color_depth(combine_op, alpha_op) \
|
|
|
|
// Draws an obj's tile clipped against the right side of the screen
|
|
|
|
#define partial_tile_left_obj(combine_op, color_depth, alpha_op, flip_op) \
|
|
partial_tile_left_##flip_op##_##color_depth(combine_op, alpha_op) \
|
|
|
|
|
|
// Extra variables specific for 8bpp/4bpp tile renderers.
|
|
|
|
#define tile_extra_variables_8bpp() \
|
|
|
|
#define tile_extra_variables_4bpp() \
|
|
u32 current_palette \
|
|
|
|
|
|
// Byte lengths of complete tiles and tile rows in 4bpp and 8bpp.
|
|
|
|
#define tile_width_4bpp 4
|
|
#define tile_size_4bpp 32
|
|
#define tile_width_8bpp 8
|
|
#define tile_size_8bpp 64
|
|
|
|
#define render_scanline_dest_normal u16
|
|
#define render_scanline_dest_alpha u32
|
|
#define render_scanline_dest_alpha_obj u32
|
|
#define render_scanline_dest_color16 u16
|
|
#define render_scanline_dest_color32 u32
|
|
#define render_scanline_dest_partial_alpha u32
|
|
#define render_scanline_dest_copy_tile u16
|
|
#define render_scanline_dest_copy_bitmap u16
|
|
|
|
|
|
// If rendering a scanline that is not a target A then there's no point in
|
|
// keeping what's underneath it because it can't blend with it.
|
|
|
|
#define render_scanline_skip_alpha(bg_type, combine_op) \
|
|
if((pixel_combine & 0x00000200) == 0) \
|
|
{ \
|
|
render_scanline_##bg_type##_##combine_op##_color32(layer, \
|
|
start, end, scanline); \
|
|
return; \
|
|
} \
|
|
|
|
|
|
#define render_scanline_extra_variables_base_normal(bg_type) \
|
|
u16 *palette = palette_ram_converted \
|
|
|
|
|
|
#define render_scanline_extra_variables_base_alpha(bg_type) \
|
|
u32 bg_combine = color_combine_mask(5); \
|
|
u32 pixel_combine = color_combine_mask(layer) | (bg_combine << 16); \
|
|
render_scanline_skip_alpha(bg_type, base) \
|
|
|
|
#define render_scanline_extra_variables_base_color() \
|
|
u32 bg_combine = color_combine_mask(5); \
|
|
u32 pixel_combine = color_combine_mask(layer) \
|
|
|
|
#define render_scanline_extra_variables_base_color16(bg_type) \
|
|
render_scanline_extra_variables_base_color() \
|
|
|
|
#define render_scanline_extra_variables_base_color32(bg_type) \
|
|
render_scanline_extra_variables_base_color() \
|
|
|
|
|
|
#define render_scanline_extra_variables_transparent_normal(bg_type) \
|
|
render_scanline_extra_variables_base_normal(bg_type) \
|
|
|
|
#define render_scanline_extra_variables_transparent_alpha(bg_type) \
|
|
u32 pixel_combine = color_combine_mask(layer); \
|
|
render_scanline_skip_alpha(bg_type, transparent) \
|
|
|
|
#define render_scanline_extra_variables_transparent_color() \
|
|
u32 pixel_combine = color_combine_mask(layer) \
|
|
|
|
#define render_scanline_extra_variables_transparent_color16(bg_type) \
|
|
render_scanline_extra_variables_transparent_color() \
|
|
|
|
#define render_scanline_extra_variables_transparent_color32(bg_type) \
|
|
render_scanline_extra_variables_transparent_color() \
|
|
|
|
|
|
static const u32 map_widths[] = { 256, 512, 256, 512 };
|
|
|
|
static void render_scanline_text_base_normal(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_base_normal(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_normal *dest_ptr =
|
|
((render_scanline_dest_normal *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: base
|
|
* alpha : normal
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
|
|
tile_extra_variables_8bpp();
|
|
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 8bpp, normal);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 8bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 8bpp, normal);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_base_8bpp_normal();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_base_8bpp_normal();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 8bpp, normal);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: base
|
|
* alpha : normal
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
|
|
tile_extra_variables_4bpp();
|
|
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 4bpp, normal);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 4bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 4bpp, normal);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_base_4bpp_normal();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_base_4bpp_normal();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 4bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_transparent_normal(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_transparent_normal(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_normal *dest_ptr =
|
|
((render_scanline_dest_normal *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: transparent
|
|
* alpha : normal
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 8bpp, normal);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 8bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 8bpp, normal);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_transparent_8bpp_normal();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_transparent_8bpp_normal();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 8bpp, normal);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: transparent
|
|
* alpha : normal
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 4bpp, normal);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 4bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 4bpp, normal);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_transparent_4bpp_normal();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_transparent_4bpp_normal();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 4bpp, normal);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_base_color16(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_base_color16(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_color16 *dest_ptr =
|
|
((render_scanline_dest_color16 *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: base
|
|
* alpha :color16
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 8bpp, color16);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 8bpp, color16);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 8bpp, color16);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_base_8bpp_color16();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_base_8bpp_color16();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 8bpp, color16);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: base
|
|
* alpha :color16
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 4bpp, color16);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 4bpp, color16);
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 4bpp, color16);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_base_4bpp_color16();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_base_4bpp_color16();
|
|
|
|
partial_tile_run = end % 8;
|
|
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 4bpp, color16);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_transparent_color16(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_transparent_color16(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_color16 *dest_ptr =
|
|
((render_scanline_dest_color16 *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: transparent
|
|
* alpha :color16
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 8bpp, color16);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 8bpp, color16);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 8bpp, color16);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_transparent_8bpp_color16();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_transparent_8bpp_color16();
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 8bpp, color16);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: transparent
|
|
* alpha :color16
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 4bpp, color16);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 4bpp, color16);
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 4bpp, color16);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map_transparent_4bpp_color16();
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map_transparent_4bpp_color16();
|
|
|
|
partial_tile_run = end % 8;
|
|
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 4bpp, color16);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_base_color32(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_base_color32(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_color32 *dest_ptr =
|
|
((render_scanline_dest_color32 *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: base
|
|
* alpha :color32
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 8bpp, color32);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 8bpp, color32);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 8bpp, color32);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(base, 8bpp, color32);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(base, 8bpp, color32);
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 8bpp, color32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: base
|
|
* alpha :color32
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 4bpp, color32);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 4bpp, color32);
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 4bpp, color32);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(base, 4bpp, color32);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(base, 4bpp, color32);
|
|
|
|
partial_tile_run = end % 8;
|
|
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 4bpp, color32);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_transparent_color32(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_transparent_color32(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_color32 *dest_ptr =
|
|
((render_scanline_dest_color32 *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: transparent
|
|
* alpha :color32
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 8bpp, color32);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 8bpp, color32);
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 8bpp, color32);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(transparent, 8bpp, color32);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(transparent, 8bpp, color32);
|
|
|
|
partial_tile_run = end % 8;
|
|
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 8bpp, color32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: transparent
|
|
* alpha :color32
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 4bpp, color32);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 4bpp, color32);
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 4bpp, color32);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(transparent, 4bpp, color32);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(transparent, 4bpp, color32);
|
|
|
|
partial_tile_run = end % 8;
|
|
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 4bpp, color32);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_base_alpha(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_base_alpha(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_alpha *dest_ptr =
|
|
((render_scanline_dest_alpha *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: base
|
|
* alpha : alpha
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 8bpp, alpha);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 8bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 8bpp, alpha);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(base, 8bpp, alpha);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(base, 8bpp, alpha);
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 8bpp, alpha);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: base
|
|
* alpha : alpha
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(base, 4bpp, alpha);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(base, 4bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(base, 4bpp, alpha);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(base, 4bpp, alpha);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(base, 4bpp, alpha);
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(base, 4bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void render_scanline_text_transparent_alpha(u32 layer,
|
|
u32 start, u32 end, void *scanline)
|
|
{
|
|
render_scanline_extra_variables_transparent_alpha(text);
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer];
|
|
u32 map_size = (bg_control >> 14) & 0x03;
|
|
u32 map_width = map_widths[map_size];
|
|
u32 horizontal_offset =
|
|
(io_registers[REG_BG0HOFS + (layer * 2)] + start) % 512;
|
|
u32 vertical_offset = (io_registers[REG_VCOUNT] +
|
|
io_registers[REG_BG0VOFS + (layer * 2)]) % 512;
|
|
u32 current_pixel;
|
|
u32 current_pixels;
|
|
u32 partial_tile_run = 0;
|
|
u32 partial_tile_offset;
|
|
u32 tile_run;
|
|
u32 i;
|
|
render_scanline_dest_alpha *dest_ptr =
|
|
((render_scanline_dest_alpha *)scanline) + start;
|
|
|
|
u16 *map_base = (u16 *)(vram + ((bg_control >> 8) & 0x1F) * (1024 * 2));
|
|
u16 *map_ptr, *second_ptr;
|
|
u8 *tile_ptr;
|
|
|
|
end -= start;
|
|
|
|
if((map_size & 0x02) && (vertical_offset >= 256))
|
|
{
|
|
map_base += ((map_width / 8) * 32) +
|
|
(((vertical_offset - 256) / 8) * 32);
|
|
}
|
|
else
|
|
{
|
|
map_base += (((vertical_offset % 256) / 8) * 32);
|
|
}
|
|
|
|
if(map_size & 0x01)
|
|
{
|
|
if(horizontal_offset >= 256)
|
|
{
|
|
horizontal_offset -= 256;
|
|
map_ptr = map_base + (32 * 32) + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
else
|
|
{
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base + (32 * 32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
horizontal_offset %= 256;
|
|
map_ptr = map_base + (horizontal_offset / 8);
|
|
second_ptr = map_base;
|
|
}
|
|
|
|
if(bg_control & 0x80)
|
|
{
|
|
/* color depth: 8bpp
|
|
* combine: transparent
|
|
* alpha : alpha
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_8bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_8bpp - tile_width_8bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_8bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 8bpp, alpha);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 8bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 8bpp, alpha);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(transparent, 8bpp, alpha);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(transparent, 8bpp, alpha);
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 8bpp, alpha);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* color depth: 4bpp
|
|
* combine: transparent
|
|
* alpha : alpha
|
|
*/
|
|
|
|
/* Render a single scanline of text tiles */
|
|
u32 vertical_pixel_offset = (vertical_offset % 8) *
|
|
tile_width_4bpp;
|
|
s32 vertical_pixel_flip =
|
|
((tile_size_4bpp - tile_width_4bpp) -
|
|
vertical_pixel_offset) - vertical_pixel_offset;
|
|
tile_extra_variables_4bpp();
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)) +
|
|
vertical_pixel_offset;
|
|
u32 pixel_run = 256 - (horizontal_offset % 256);
|
|
u32 current_tile;
|
|
|
|
map_base += ((vertical_offset % 256) / 8) * 32;
|
|
partial_tile_offset = (horizontal_offset % 8);
|
|
|
|
if(pixel_run >= end)
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
if(end < partial_tile_run)
|
|
{
|
|
partial_tile_run = end;
|
|
partial_tile_mid_map(transparent, 4bpp, alpha);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
end -= partial_tile_run;
|
|
partial_tile_right_map(transparent, 4bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(partial_tile_offset)
|
|
{
|
|
partial_tile_run = 8 - partial_tile_offset;
|
|
partial_tile_right_map(transparent, 4bpp, alpha);
|
|
}
|
|
|
|
tile_run = (pixel_run - partial_tile_run) / 8;
|
|
multiple_tile_map(transparent, 4bpp, alpha);
|
|
map_ptr = second_ptr;
|
|
end -= pixel_run;
|
|
}
|
|
tile_run = end / 8;
|
|
multiple_tile_map(transparent, 4bpp, alpha);
|
|
|
|
partial_tile_run = end % 8;
|
|
if(partial_tile_run)
|
|
{
|
|
partial_tile_left_map(transparent, 4bpp, alpha);
|
|
}
|
|
}
|
|
}
|
|
|
|
s32 affine_reference_x[2];
|
|
s32 affine_reference_y[2];
|
|
|
|
#define affine_render_bg_pixel_normal() \
|
|
current_pixel = palette_ram_converted[0] \
|
|
|
|
#define affine_render_bg_pixel_alpha() \
|
|
current_pixel = bg_combine \
|
|
|
|
#define affine_render_bg_pixel_color16() \
|
|
affine_render_bg_pixel_alpha() \
|
|
|
|
#define affine_render_bg_pixel_color32() \
|
|
affine_render_bg_pixel_alpha() \
|
|
|
|
#define affine_render_bg_pixel_base(alpha_op) \
|
|
affine_render_bg_pixel_##alpha_op() \
|
|
|
|
#define affine_render_bg_pixel_transparent(alpha_op) \
|
|
|
|
#define affine_render_bg_pixel_copy(alpha_op) \
|
|
|
|
#define affine_render_bg_base(alpha_op) \
|
|
dest_ptr[0] = current_pixel
|
|
|
|
#define affine_render_bg_transparent(alpha_op) \
|
|
|
|
#define affine_render_bg_copy(alpha_op) \
|
|
|
|
#define affine_render_bg_remainder_base(alpha_op) \
|
|
affine_render_bg_pixel_##alpha_op(); \
|
|
for(; i < end; i++) \
|
|
{ \
|
|
affine_render_bg_base(alpha_op); \
|
|
advance_dest_ptr_base(1); \
|
|
} \
|
|
|
|
#define affine_render_bg_remainder_transparent(alpha_op) \
|
|
|
|
#define affine_render_bg_remainder_copy(alpha_op) \
|
|
|
|
#define affine_render_next(combine_op) \
|
|
source_x += dx; \
|
|
source_y += dy; \
|
|
advance_dest_ptr_##combine_op(1) \
|
|
|
|
#define affine_render_scale_offset() \
|
|
tile_base += ((pixel_y % 8) * 8); \
|
|
map_base += (pixel_y / 8) << map_pitch \
|
|
|
|
#define affine_render_scale_pixel(combine_op, alpha_op) \
|
|
map_offset = (pixel_x / 8); \
|
|
if(map_offset != last_map_offset) \
|
|
{ \
|
|
tile_ptr = tile_base + (map_base[map_offset] * 64); \
|
|
last_map_offset = map_offset; \
|
|
} \
|
|
tile_ptr = tile_base + (map_base[(pixel_x / 8)] * 64); \
|
|
current_pixel = tile_ptr[(pixel_x % 8)]; \
|
|
tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
|
|
affine_render_next(combine_op) \
|
|
|
|
#define affine_render_scale(combine_op, alpha_op) \
|
|
{ \
|
|
pixel_y = source_y >> 8; \
|
|
u32 i = 0; \
|
|
affine_render_bg_pixel_##combine_op(alpha_op); \
|
|
if((u32)pixel_y < (u32)width_height) \
|
|
{ \
|
|
affine_render_scale_offset(); \
|
|
for(; i < end; i++) \
|
|
{ \
|
|
pixel_x = source_x >> 8; \
|
|
\
|
|
if((u32)pixel_x < (u32)width_height) \
|
|
{ \
|
|
break; \
|
|
} \
|
|
\
|
|
affine_render_bg_##combine_op(alpha_op); \
|
|
affine_render_next(combine_op); \
|
|
} \
|
|
\
|
|
for(; i < end; i++) \
|
|
{ \
|
|
pixel_x = source_x >> 8; \
|
|
\
|
|
if((u32)pixel_x >= (u32)width_height) \
|
|
break; \
|
|
\
|
|
affine_render_scale_pixel(combine_op, alpha_op); \
|
|
} \
|
|
} \
|
|
affine_render_bg_remainder_##combine_op(alpha_op); \
|
|
} \
|
|
|
|
#define affine_render_scale_wrap(combine_op, alpha_op) \
|
|
{ \
|
|
u32 wrap_mask = width_height - 1; \
|
|
pixel_y = (source_y >> 8) & wrap_mask; \
|
|
if((u32)pixel_y < (u32)width_height) \
|
|
{ \
|
|
affine_render_scale_offset(); \
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_x = (source_x >> 8) & wrap_mask; \
|
|
affine_render_scale_pixel(combine_op, alpha_op); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
|
|
#define affine_render_rotate_pixel(combine_op, alpha_op) \
|
|
map_offset = (pixel_x / 8) + ((pixel_y / 8) << map_pitch); \
|
|
if(map_offset != last_map_offset) \
|
|
{ \
|
|
tile_ptr = tile_base + (map_base[map_offset] * 64); \
|
|
last_map_offset = map_offset; \
|
|
} \
|
|
\
|
|
current_pixel = tile_ptr[(pixel_x % 8) + ((pixel_y % 8) * 8)]; \
|
|
tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
|
|
affine_render_next(combine_op) \
|
|
|
|
#define affine_render_rotate(combine_op, alpha_op) \
|
|
{ \
|
|
affine_render_bg_pixel_##combine_op(alpha_op); \
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_x = source_x >> 8; \
|
|
pixel_y = source_y >> 8; \
|
|
\
|
|
if(((u32)pixel_x < (u32)width_height) && \
|
|
((u32)pixel_y < (u32)width_height)) \
|
|
{ \
|
|
break; \
|
|
} \
|
|
affine_render_bg_##combine_op(alpha_op); \
|
|
affine_render_next(combine_op); \
|
|
} \
|
|
\
|
|
for(; i < end; i++) \
|
|
{ \
|
|
pixel_x = source_x >> 8; \
|
|
pixel_y = source_y >> 8; \
|
|
\
|
|
if(((u32)pixel_x >= (u32)width_height) || \
|
|
((u32)pixel_y >= (u32)width_height)) \
|
|
{ \
|
|
affine_render_bg_remainder_##combine_op(alpha_op); \
|
|
break; \
|
|
} \
|
|
\
|
|
affine_render_rotate_pixel(combine_op, alpha_op); \
|
|
} \
|
|
} \
|
|
|
|
#define affine_render_rotate_wrap(combine_op, alpha_op) \
|
|
{ \
|
|
u32 wrap_mask = width_height - 1; \
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_x = (source_x >> 8) & wrap_mask; \
|
|
pixel_y = (source_y >> 8) & wrap_mask; \
|
|
\
|
|
affine_render_rotate_pixel(combine_op, alpha_op); \
|
|
} \
|
|
} \
|
|
|
|
|
|
// Build affine background renderers.
|
|
|
|
#define render_scanline_affine_builder(combine_op, alpha_op) \
|
|
void render_scanline_affine_##combine_op##_##alpha_op(u32 layer, \
|
|
u32 start, u32 end, void *scanline) \
|
|
{ \
|
|
render_scanline_extra_variables_##combine_op##_##alpha_op(affine); \
|
|
u32 bg_control = io_registers[REG_BG0CNT + layer]; \
|
|
u32 current_pixel; \
|
|
s32 source_x, source_y; \
|
|
u32 pixel_x, pixel_y; \
|
|
u32 layer_offset = (layer - 2) * 8; \
|
|
s32 dx, dy; \
|
|
u32 map_size = (bg_control >> 14) & 0x03; \
|
|
u32 width_height = 1 << (7 + map_size); \
|
|
u32 map_pitch = map_size + 4; \
|
|
u8 *map_base = vram + (((bg_control >> 8) & 0x1F) * (1024 * 2)); \
|
|
u8 *tile_base = vram + (((bg_control >> 2) & 0x03) * (1024 * 16)); \
|
|
u8 *tile_ptr = NULL; \
|
|
u32 map_offset, last_map_offset = (u32)-1; \
|
|
u32 i; \
|
|
render_scanline_dest_##alpha_op *dest_ptr = \
|
|
((render_scanline_dest_##alpha_op *)scanline) + start; \
|
|
\
|
|
dx = (s16)io_registers[REG_BG2PA + layer_offset]; \
|
|
dy = (s16)io_registers[REG_BG2PC + layer_offset]; \
|
|
source_x = affine_reference_x[layer - 2] + (start * dx); \
|
|
source_y = affine_reference_y[layer - 2] + (start * dy); \
|
|
\
|
|
end -= start; \
|
|
\
|
|
switch(((bg_control >> 12) & 0x02) | (dy != 0)) \
|
|
{ \
|
|
case 0x00: \
|
|
affine_render_scale(combine_op, alpha_op); \
|
|
break; \
|
|
\
|
|
case 0x01: \
|
|
affine_render_rotate(combine_op, alpha_op); \
|
|
break; \
|
|
\
|
|
case 0x02: \
|
|
affine_render_scale_wrap(combine_op, alpha_op); \
|
|
break; \
|
|
\
|
|
case 0x03: \
|
|
affine_render_rotate_wrap(combine_op, alpha_op); \
|
|
break; \
|
|
} \
|
|
} \
|
|
|
|
render_scanline_affine_builder(base, normal);
|
|
render_scanline_affine_builder(transparent, normal);
|
|
render_scanline_affine_builder(base, color16);
|
|
render_scanline_affine_builder(transparent, color16);
|
|
render_scanline_affine_builder(base, color32);
|
|
render_scanline_affine_builder(transparent, color32);
|
|
render_scanline_affine_builder(base, alpha);
|
|
render_scanline_affine_builder(transparent, alpha);
|
|
|
|
|
|
#define bitmap_render_pixel_mode3(alpha_op) \
|
|
convert_palette(current_pixel); \
|
|
*dest_ptr = current_pixel \
|
|
|
|
#define bitmap_render_pixel_mode4(alpha_op) \
|
|
tile_expand_base_##alpha_op(0) \
|
|
|
|
#define bitmap_render_pixel_mode5(alpha_op) \
|
|
bitmap_render_pixel_mode3(alpha_op) \
|
|
|
|
|
|
#define bitmap_render_scale(type, alpha_op, width, height) \
|
|
pixel_y = (source_y >> 8); \
|
|
if((u32)pixel_y < (u32)height) \
|
|
{ \
|
|
pixel_x = (source_x >> 8); \
|
|
src_ptr += (pixel_y * width); \
|
|
if(dx == 0x100) \
|
|
{ \
|
|
if(pixel_x < 0) \
|
|
{ \
|
|
end += pixel_x; \
|
|
dest_ptr -= pixel_x; \
|
|
pixel_x = 0; \
|
|
} \
|
|
else if(pixel_x > 0) \
|
|
src_ptr += pixel_x; \
|
|
\
|
|
if((pixel_x + end) >= width) \
|
|
end = (width - pixel_x); \
|
|
\
|
|
for(i = 0; (s32)i < (s32)end; i++) \
|
|
{ \
|
|
current_pixel = *src_ptr; \
|
|
bitmap_render_pixel_##type(alpha_op); \
|
|
src_ptr++; \
|
|
dest_ptr++; \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
if((u32)(source_y >> 8) < (u32)height) \
|
|
{ \
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_x = (source_x >> 8); \
|
|
\
|
|
if((u32)pixel_x < (u32)width) \
|
|
break; \
|
|
\
|
|
source_x += dx; \
|
|
dest_ptr++; \
|
|
} \
|
|
\
|
|
for(; i < end; i++) \
|
|
{ \
|
|
pixel_x = (source_x >> 8); \
|
|
\
|
|
if((u32)pixel_x >= (u32)width) \
|
|
break; \
|
|
\
|
|
current_pixel = src_ptr[pixel_x]; \
|
|
bitmap_render_pixel_##type(alpha_op); \
|
|
\
|
|
source_x += dx; \
|
|
dest_ptr++; \
|
|
} \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
#define bitmap_render_rotate(type, alpha_op, width, height) \
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_x = source_x >> 8; \
|
|
pixel_y = source_y >> 8; \
|
|
\
|
|
if(((u32)pixel_x < (u32)width) && ((u32)pixel_y < (u32)height)) \
|
|
break; \
|
|
\
|
|
source_x += dx; \
|
|
source_y += dy; \
|
|
dest_ptr++; \
|
|
} \
|
|
\
|
|
for(; i < end; i++) \
|
|
{ \
|
|
pixel_x = (source_x >> 8); \
|
|
pixel_y = (source_y >> 8); \
|
|
\
|
|
if(((u32)pixel_x >= (u32)width) || ((u32)pixel_y >= (u32)height)) \
|
|
break; \
|
|
\
|
|
current_pixel = src_ptr[pixel_x + (pixel_y * width)]; \
|
|
bitmap_render_pixel_##type(alpha_op); \
|
|
\
|
|
source_x += dx; \
|
|
source_y += dy; \
|
|
dest_ptr++; \
|
|
} \
|
|
|
|
|
|
#define render_scanline_vram_setup_mode3() \
|
|
u16 *src_ptr = (u16 *)vram \
|
|
|
|
#define render_scanline_vram_setup_mode5() \
|
|
u16 *src_ptr = (u16 *)vram; \
|
|
if(io_registers[REG_DISPCNT] & 0x10) \
|
|
src_ptr = (u16 *)(vram + 0xA000); \
|
|
|
|
|
|
#define render_scanline_vram_setup_mode4() \
|
|
u16 *palette = palette_ram_converted; \
|
|
u8 *src_ptr = vram; \
|
|
if(io_registers[REG_DISPCNT] & 0x10) \
|
|
src_ptr = vram + 0xA000; \
|
|
|
|
|
|
|
|
// Build bitmap scanline rendering functions.
|
|
|
|
#define render_scanline_bitmap_builder(type, alpha_op, width, height) \
|
|
static void render_scanline_bitmap_##type##_##alpha_op(u32 start, u32 end, \
|
|
void *scanline) \
|
|
{ \
|
|
u32 current_pixel; \
|
|
s32 source_x, source_y; \
|
|
s32 pixel_x, pixel_y; \
|
|
\
|
|
s32 dx = (s16)io_registers[REG_BG2PA]; \
|
|
s32 dy = (s16)io_registers[REG_BG2PC]; \
|
|
\
|
|
u32 i; \
|
|
\
|
|
render_scanline_dest_##alpha_op *dest_ptr = \
|
|
((render_scanline_dest_##alpha_op *)scanline) + start; \
|
|
render_scanline_vram_setup_##type(); \
|
|
\
|
|
end -= start; \
|
|
\
|
|
source_x = affine_reference_x[0] + (start * dx); \
|
|
source_y = affine_reference_y[0] + (start * dy); \
|
|
\
|
|
if(dy == 0) \
|
|
{ \
|
|
bitmap_render_scale(type, alpha_op, width, height); \
|
|
} \
|
|
else \
|
|
{ \
|
|
bitmap_render_rotate(type, alpha_op, width, height); \
|
|
} \
|
|
} \
|
|
|
|
render_scanline_bitmap_builder(mode3, normal, 240, 160);
|
|
render_scanline_bitmap_builder(mode4, normal, 240, 160);
|
|
render_scanline_bitmap_builder(mode5, normal, 160, 128);
|
|
|
|
|
|
// Fill in the renderers for a layer based on the mode type,
|
|
|
|
#define tile_layer_render_functions(type) \
|
|
{ \
|
|
render_scanline_##type##_base_normal, \
|
|
render_scanline_##type##_transparent_normal, \
|
|
render_scanline_##type##_base_alpha, \
|
|
render_scanline_##type##_transparent_alpha, \
|
|
render_scanline_##type##_base_color16, \
|
|
render_scanline_##type##_transparent_color16, \
|
|
render_scanline_##type##_base_color32, \
|
|
render_scanline_##type##_transparent_color32 \
|
|
} \
|
|
|
|
|
|
// Use if a layer is unsupported for that mode.
|
|
|
|
#define tile_layer_render_null() \
|
|
{ \
|
|
NULL, NULL, NULL, NULL \
|
|
} \
|
|
|
|
#define bitmap_layer_render_functions(type) \
|
|
{ \
|
|
render_scanline_bitmap_##type##_normal \
|
|
} \
|
|
|
|
// Structs containing functions to render the layers for each mode, for
|
|
// each render type.
|
|
static const tile_layer_render_struct tile_mode_renderers[3][4] =
|
|
{
|
|
{
|
|
tile_layer_render_functions(text), tile_layer_render_functions(text),
|
|
tile_layer_render_functions(text), tile_layer_render_functions(text)
|
|
},
|
|
{
|
|
tile_layer_render_functions(text), tile_layer_render_functions(text),
|
|
tile_layer_render_functions(affine), tile_layer_render_functions(text)
|
|
},
|
|
{
|
|
tile_layer_render_functions(text), tile_layer_render_functions(text),
|
|
tile_layer_render_functions(affine), tile_layer_render_functions(affine)
|
|
}
|
|
};
|
|
|
|
static const bitmap_layer_render_struct bitmap_mode_renderers[3] =
|
|
{
|
|
bitmap_layer_render_functions(mode3),
|
|
bitmap_layer_render_functions(mode4),
|
|
bitmap_layer_render_functions(mode5)
|
|
};
|
|
|
|
|
|
#define render_scanline_layer_functions_tile() \
|
|
const tile_layer_render_struct *layer_renderers = \
|
|
tile_mode_renderers[dispcnt & 0x07] \
|
|
|
|
#define render_scanline_layer_functions_bitmap() \
|
|
const bitmap_layer_render_struct *layer_renderers = \
|
|
bitmap_mode_renderers + ((dispcnt & 0x07) - 3) \
|
|
|
|
|
|
// Adjust a flipped obj's starting position
|
|
|
|
#define obj_tile_offset_noflip(color_depth) \
|
|
|
|
#define obj_tile_offset_flip(color_depth) \
|
|
+ (tile_size_##color_depth * ((obj_width - 8) / 8)) \
|
|
|
|
|
|
// Adjust the obj's starting point if it goes too far off the left edge of
|
|
// the screen.
|
|
|
|
#define obj_tile_right_offset_noflip(color_depth) \
|
|
tile_ptr += (partial_tile_offset / 8) * tile_size_##color_depth \
|
|
|
|
#define obj_tile_right_offset_flip(color_depth) \
|
|
tile_ptr -= (partial_tile_offset / 8) * tile_size_##color_depth \
|
|
|
|
// Get the current row offset into an obj in 1D map space
|
|
|
|
#define obj_tile_offset_1D(color_depth, flip_op) \
|
|
tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
|
|
+ ((vertical_offset / 8) * (obj_width / 8) * tile_size_##color_depth) \
|
|
+ ((vertical_offset % 8) * tile_width_##color_depth) \
|
|
obj_tile_offset_##flip_op(color_depth) \
|
|
|
|
// Get the current row offset into an obj in 2D map space
|
|
|
|
#define obj_tile_offset_2D(color_depth, flip_op) \
|
|
tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
|
|
+ ((vertical_offset / 8) * 1024) \
|
|
+ ((vertical_offset % 8) * tile_width_##color_depth) \
|
|
obj_tile_offset_##flip_op(color_depth) \
|
|
|
|
|
|
// Get the palette for 4bpp obj.
|
|
|
|
#define obj_get_palette_4bpp() \
|
|
current_palette = (obj_attribute_2 >> 8) & 0xF0 \
|
|
|
|
#define obj_get_palette_8bpp() \
|
|
|
|
|
|
// Render the current row of an obj.
|
|
|
|
#define obj_render(combine_op, color_depth, alpha_op, map_space, flip_op) \
|
|
{ \
|
|
obj_get_palette_##color_depth(); \
|
|
obj_tile_offset_##map_space(color_depth, flip_op); \
|
|
\
|
|
if(obj_x < (s32)start) \
|
|
{ \
|
|
dest_ptr = scanline + start; \
|
|
pixel_run = obj_width - (start - obj_x); \
|
|
if((s32)pixel_run > 0) \
|
|
{ \
|
|
if((obj_x + obj_width) >= end) \
|
|
{ \
|
|
pixel_run = end - start; \
|
|
partial_tile_offset = start - obj_x; \
|
|
obj_tile_right_offset_##flip_op(color_depth); \
|
|
partial_tile_offset %= 8; \
|
|
\
|
|
if(partial_tile_offset) \
|
|
{ \
|
|
partial_tile_run = 8 - partial_tile_offset; \
|
|
if((s32)pixel_run < (s32)partial_tile_run) \
|
|
{ \
|
|
if((s32)pixel_run > 0) \
|
|
{ \
|
|
partial_tile_run = pixel_run; \
|
|
partial_tile_mid_obj(combine_op, color_depth, alpha_op, \
|
|
flip_op); \
|
|
} \
|
|
continue; \
|
|
} \
|
|
else \
|
|
{ \
|
|
pixel_run -= partial_tile_run; \
|
|
partial_tile_right_obj(combine_op, color_depth, alpha_op, \
|
|
flip_op); \
|
|
} \
|
|
} \
|
|
tile_run = pixel_run / 8; \
|
|
multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
|
|
partial_tile_run = pixel_run % 8; \
|
|
if(partial_tile_run) \
|
|
{ \
|
|
partial_tile_left_obj(combine_op, color_depth, alpha_op, \
|
|
flip_op); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
partial_tile_offset = start - obj_x; \
|
|
obj_tile_right_offset_##flip_op(color_depth); \
|
|
partial_tile_offset %= 8; \
|
|
if(partial_tile_offset) \
|
|
{ \
|
|
partial_tile_run = 8 - partial_tile_offset; \
|
|
partial_tile_right_obj(combine_op, color_depth, alpha_op, \
|
|
flip_op); \
|
|
} \
|
|
tile_run = pixel_run / 8; \
|
|
multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
|
|
} \
|
|
} \
|
|
} \
|
|
else \
|
|
\
|
|
if((obj_x + obj_width) >= end) \
|
|
{ \
|
|
pixel_run = end - obj_x; \
|
|
if((s32)pixel_run > 0) \
|
|
{ \
|
|
dest_ptr = scanline + obj_x; \
|
|
tile_run = pixel_run / 8; \
|
|
multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
|
|
partial_tile_run = pixel_run % 8; \
|
|
if(partial_tile_run) \
|
|
{ \
|
|
partial_tile_left_obj(combine_op, color_depth, alpha_op, flip_op); \
|
|
} \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
dest_ptr = scanline + obj_x; \
|
|
tile_run = obj_width / 8; \
|
|
multiple_tile_obj(combine_op, color_depth, alpha_op, flip_op); \
|
|
} \
|
|
} \
|
|
|
|
#define obj_scale_offset_1D(color_depth) \
|
|
tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
|
|
+ ((vertical_offset / 8) * (max_x / 8) * tile_size_##color_depth) \
|
|
+ ((vertical_offset % 8) * tile_width_##color_depth) \
|
|
|
|
// Get the current row offset into an obj in 2D map space
|
|
|
|
#define obj_scale_offset_2D(color_depth) \
|
|
tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32) \
|
|
+ ((vertical_offset / 8) * 1024) \
|
|
+ ((vertical_offset % 8) * tile_width_##color_depth) \
|
|
|
|
#define obj_render_scale_pixel_4bpp(combine_op, alpha_op) \
|
|
current_pixel = \
|
|
tile_ptr[tile_map_offset + ((tile_x >> 1) & 0x03)]; \
|
|
if(tile_x & 0x01) \
|
|
current_pixel >>= 4; \
|
|
else \
|
|
current_pixel &= 0x0F; \
|
|
\
|
|
tile_4bpp_draw_##combine_op(0, none, 0, alpha_op) \
|
|
|
|
|
|
#define obj_render_scale_pixel_8bpp(combine_op, alpha_op) \
|
|
current_pixel = tile_ptr[tile_map_offset + (tile_x & 0x07)]; \
|
|
tile_8bpp_draw_##combine_op(0, none, 0, alpha_op); \
|
|
|
|
#define obj_render_scale(combine_op, color_depth, alpha_op, map_space) \
|
|
{ \
|
|
u32 vertical_offset; \
|
|
source_y += (y_delta * dmy); \
|
|
vertical_offset = (source_y >> 8); \
|
|
if((u32)vertical_offset < (u32)max_y) \
|
|
{ \
|
|
obj_scale_offset_##map_space(color_depth); \
|
|
source_x += (y_delta * dmx) - (middle_x * dx); \
|
|
\
|
|
for(i = 0; i < obj_width; i++) \
|
|
{ \
|
|
tile_x = (source_x >> 8); \
|
|
\
|
|
if((u32)tile_x < (u32)max_x) \
|
|
break; \
|
|
\
|
|
source_x += dx; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
\
|
|
for(; i < obj_width; i++) \
|
|
{ \
|
|
tile_x = (source_x >> 8); \
|
|
\
|
|
if((u32)tile_x >= (u32)max_x) \
|
|
break; \
|
|
\
|
|
tile_map_offset = (tile_x >> 3) * tile_size_##color_depth; \
|
|
obj_render_scale_pixel_##color_depth(combine_op, alpha_op); \
|
|
\
|
|
source_x += dx; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
|
|
#define obj_rotate_offset_1D(color_depth) \
|
|
obj_tile_pitch = (max_x / 8) * tile_size_##color_depth \
|
|
|
|
#define obj_rotate_offset_2D(color_depth) \
|
|
obj_tile_pitch = 1024 \
|
|
|
|
#define obj_render_rotate_pixel_4bpp(combine_op, alpha_op) \
|
|
current_pixel = tile_ptr[tile_map_offset + \
|
|
((tile_x >> 1) & 0x03) + ((tile_y & 0x07) * obj_pitch)]; \
|
|
if(tile_x & 0x01) \
|
|
current_pixel >>= 4; \
|
|
else \
|
|
current_pixel &= 0x0F; \
|
|
\
|
|
tile_4bpp_draw_##combine_op(0, none, 0, alpha_op) \
|
|
|
|
#define obj_render_rotate_pixel_8bpp(combine_op, alpha_op) \
|
|
current_pixel = tile_ptr[tile_map_offset + \
|
|
(tile_x & 0x07) + ((tile_y & 0x07) * obj_pitch)]; \
|
|
\
|
|
tile_8bpp_draw_##combine_op(0, none, 0, alpha_op) \
|
|
|
|
#define obj_render_rotate(combine_op, color_depth, alpha_op, map_space) \
|
|
{ \
|
|
tile_ptr = tile_base + ((obj_attribute_2 & 0x3FF) * 32); \
|
|
obj_rotate_offset_##map_space(color_depth); \
|
|
\
|
|
source_x += (y_delta * dmx) - (middle_x * dx); \
|
|
source_y += (y_delta * dmy) - (middle_x * dy); \
|
|
\
|
|
for(i = 0; i < obj_width; i++) \
|
|
{ \
|
|
tile_x = (source_x >> 8); \
|
|
tile_y = (source_y >> 8); \
|
|
\
|
|
if(((u32)tile_x < (u32)max_x) && ((u32)tile_y < (u32)max_y)) \
|
|
break; \
|
|
\
|
|
source_x += dx; \
|
|
source_y += dy; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
\
|
|
for(; i < obj_width; i++) \
|
|
{ \
|
|
tile_x = (source_x >> 8); \
|
|
tile_y = (source_y >> 8); \
|
|
\
|
|
if(((u32)tile_x >= (u32)max_x) || ((u32)tile_y >= (u32)max_y)) \
|
|
break; \
|
|
\
|
|
tile_map_offset = ((tile_x >> 3) * tile_size_##color_depth) + \
|
|
((tile_y >> 3) * obj_tile_pitch); \
|
|
obj_render_rotate_pixel_##color_depth(combine_op, alpha_op); \
|
|
\
|
|
source_x += dx; \
|
|
source_y += dy; \
|
|
advance_dest_ptr_##combine_op(1); \
|
|
} \
|
|
} \
|
|
|
|
// Render the current row of an affine transformed OBJ.
|
|
|
|
#define obj_render_affine(combine_op, color_depth, alpha_op, map_space) \
|
|
{ \
|
|
s16 *params = (s16 *)oam_ram + (((obj_attribute_1 >> 9) & 0x1F) * 16); \
|
|
s32 dx = params[3]; \
|
|
s32 dmx = params[7]; \
|
|
s32 dy = params[11]; \
|
|
s32 dmy = params[15]; \
|
|
s32 source_x, source_y; \
|
|
s32 tile_x, tile_y; \
|
|
u32 tile_map_offset; \
|
|
s32 middle_x; \
|
|
s32 middle_y; \
|
|
s32 max_x = obj_width; \
|
|
s32 max_y = obj_height; \
|
|
s32 y_delta; \
|
|
u32 obj_pitch = tile_width_##color_depth; \
|
|
u32 obj_tile_pitch; \
|
|
\
|
|
middle_x = (obj_width / 2); \
|
|
middle_y = (obj_height / 2); \
|
|
\
|
|
source_x = (middle_x << 8); \
|
|
source_y = (middle_y << 8); \
|
|
\
|
|
\
|
|
if(obj_attribute_0 & 0x200) \
|
|
{ \
|
|
obj_width *= 2; \
|
|
obj_height *= 2; \
|
|
middle_x *= 2; \
|
|
middle_y *= 2; \
|
|
} \
|
|
\
|
|
if((s32)obj_x < (s32)start) \
|
|
{ \
|
|
u32 x_delta = start - obj_x; \
|
|
middle_x -= x_delta; \
|
|
obj_width -= x_delta; \
|
|
obj_x = start; \
|
|
\
|
|
if((s32)obj_width <= 0) \
|
|
continue; \
|
|
} \
|
|
\
|
|
if((s32)(obj_x + obj_width) >= (s32)end) \
|
|
{ \
|
|
obj_width = end - obj_x; \
|
|
\
|
|
if((s32)obj_width <= 0) \
|
|
continue; \
|
|
} \
|
|
dest_ptr = scanline + obj_x; \
|
|
\
|
|
y_delta = vcount - (obj_y + middle_y); \
|
|
\
|
|
obj_get_palette_##color_depth(); \
|
|
\
|
|
if(dy == 0) \
|
|
{ \
|
|
obj_render_scale(combine_op, color_depth, alpha_op, map_space); \
|
|
} \
|
|
else \
|
|
{ \
|
|
obj_render_rotate(combine_op, color_depth, alpha_op, map_space); \
|
|
} \
|
|
} \
|
|
|
|
static const u32 obj_width_table[] =
|
|
{ 8, 16, 32, 64, 16, 32, 32, 64, 8, 8, 16, 32 };
|
|
static const u32 obj_height_table[] =
|
|
{ 8, 16, 32, 64, 8, 8, 16, 32, 16, 32, 32, 64 };
|
|
|
|
static u8 obj_priority_list[5][160][128];
|
|
static u32 obj_priority_count[5][160];
|
|
static u32 obj_alpha_count[160];
|
|
|
|
|
|
// Build obj rendering functions
|
|
|
|
|
|
#define render_scanline_obj_extra_variables_normal(bg_type) \
|
|
u16 *palette = palette_ram_converted + 256 \
|
|
|
|
#define render_scanline_obj_extra_variables_color() \
|
|
u32 pixel_combine = color_combine_mask(4) | (1 << 8) \
|
|
|
|
#define render_scanline_obj_extra_variables_alpha_obj(map_space) \
|
|
render_scanline_obj_extra_variables_color(); \
|
|
u32 dest; \
|
|
if((pixel_combine & 0x00000200) == 0) \
|
|
{ \
|
|
render_scanline_obj_color32_##map_space(priority, start, end, scanline); \
|
|
return; \
|
|
} \
|
|
|
|
#define render_scanline_obj_extra_variables_color16(map_space) \
|
|
render_scanline_obj_extra_variables_color() \
|
|
|
|
#define render_scanline_obj_extra_variables_color32(map_space) \
|
|
render_scanline_obj_extra_variables_color() \
|
|
|
|
#define render_scanline_obj_extra_variables_partial_alpha(map_space) \
|
|
render_scanline_obj_extra_variables_color(); \
|
|
u32 base_pixel_combine = pixel_combine; \
|
|
u32 dest \
|
|
|
|
#define render_scanline_obj_extra_variables_copy(type) \
|
|
u32 bldcnt = io_registers[REG_BLDCNT]; \
|
|
u32 dispcnt = io_registers[REG_DISPCNT]; \
|
|
u32 obj_enable = io_registers[REG_WINOUT] >> 8; \
|
|
render_scanline_layer_functions_##type(); \
|
|
u32 copy_start, copy_end; \
|
|
u16 copy_buffer[240]; \
|
|
u16 *copy_ptr \
|
|
|
|
#define render_scanline_obj_extra_variables_copy_tile(map_space) \
|
|
render_scanline_obj_extra_variables_copy(tile) \
|
|
|
|
#define render_scanline_obj_extra_variables_copy_bitmap(map_space) \
|
|
render_scanline_obj_extra_variables_copy(bitmap) \
|
|
|
|
|
|
#define render_scanline_obj_main(combine_op, alpha_op, map_space) \
|
|
if(obj_attribute_0 & 0x100) \
|
|
{ \
|
|
if((obj_attribute_0 >> 13) & 0x01) \
|
|
{ \
|
|
obj_render_affine(combine_op, 8bpp, alpha_op, map_space); \
|
|
} \
|
|
else \
|
|
{ \
|
|
obj_render_affine(combine_op, 4bpp, alpha_op, map_space); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
vertical_offset = vcount - obj_y; \
|
|
\
|
|
if((obj_attribute_1 >> 13) & 0x01) \
|
|
vertical_offset = obj_height - vertical_offset - 1; \
|
|
\
|
|
switch(((obj_attribute_0 >> 12) & 0x02) | \
|
|
((obj_attribute_1 >> 12) & 0x01)) \
|
|
{ \
|
|
case 0x0: \
|
|
obj_render(combine_op, 4bpp, alpha_op, map_space, noflip); \
|
|
break; \
|
|
\
|
|
case 0x1: \
|
|
obj_render(combine_op, 4bpp, alpha_op, map_space, flip); \
|
|
break; \
|
|
\
|
|
case 0x2: \
|
|
obj_render(combine_op, 8bpp, alpha_op, map_space, noflip); \
|
|
break; \
|
|
\
|
|
case 0x3: \
|
|
obj_render(combine_op, 8bpp, alpha_op, map_space, flip); \
|
|
break; \
|
|
} \
|
|
} \
|
|
|
|
#define render_scanline_obj_no_partial_alpha(combine_op, alpha_op, map_space) \
|
|
render_scanline_obj_main(combine_op, alpha_op, map_space) \
|
|
|
|
#define render_scanline_obj_partial_alpha(combine_op, alpha_op, map_space) \
|
|
if((obj_attribute_0 >> 10) & 0x03) \
|
|
{ \
|
|
pixel_combine = 0x00000300; \
|
|
render_scanline_obj_main(combine_op, alpha_obj, map_space); \
|
|
} \
|
|
else \
|
|
{ \
|
|
pixel_combine = base_pixel_combine; \
|
|
render_scanline_obj_main(combine_op, color32, map_space); \
|
|
} \
|
|
|
|
#define render_scanline_obj_prologue_transparent(alpha_op) \
|
|
|
|
#define render_scanline_obj_prologue_copy_body(type) \
|
|
copy_start = obj_x; \
|
|
copy_end = obj_x + obj_width; \
|
|
if(obj_attribute_0 & 0x200) \
|
|
copy_end += obj_width; \
|
|
\
|
|
if(copy_start < start) \
|
|
copy_start = start; \
|
|
if(copy_end > end) \
|
|
copy_end = end; \
|
|
\
|
|
if((copy_start < end) && (copy_end > start)) \
|
|
{ \
|
|
render_scanline_conditional_##type(copy_start, copy_end, copy_buffer, \
|
|
obj_enable, dispcnt, bldcnt, layer_renderers); \
|
|
copy_ptr = copy_buffer + copy_start; \
|
|
} \
|
|
else \
|
|
{ \
|
|
continue; \
|
|
} \
|
|
|
|
#define render_scanline_obj_prologue_copy_tile() \
|
|
render_scanline_obj_prologue_copy_body(tile) \
|
|
|
|
#define render_scanline_obj_prologue_copy_bitmap() \
|
|
render_scanline_obj_prologue_copy_body(bitmap) \
|
|
|
|
#define render_scanline_obj_prologue_copy(alpha_op) \
|
|
render_scanline_obj_prologue_##alpha_op() \
|
|
|
|
|
|
#define render_scanline_obj_builder(combine_op, alpha_op, map_space, \
|
|
partial_alpha_op) \
|
|
static void render_scanline_obj_##alpha_op##_##map_space(u32 priority, \
|
|
u32 start, u32 end, render_scanline_dest_##alpha_op *scanline) \
|
|
{ \
|
|
render_scanline_obj_extra_variables_##alpha_op(map_space); \
|
|
s32 obj_num, i; \
|
|
s32 obj_x, obj_y; \
|
|
s32 obj_size; \
|
|
s32 obj_width, obj_height; \
|
|
u32 obj_attribute_0, obj_attribute_1, obj_attribute_2; \
|
|
s32 vcount = io_registers[REG_VCOUNT]; \
|
|
u32 tile_run; \
|
|
u32 current_pixels; \
|
|
u32 current_pixel; \
|
|
u32 current_palette; \
|
|
u32 vertical_offset; \
|
|
u32 partial_tile_run, partial_tile_offset; \
|
|
u32 pixel_run; \
|
|
u16 *oam_ptr; \
|
|
render_scanline_dest_##alpha_op *dest_ptr; \
|
|
u8 *tile_base = vram + 0x10000; \
|
|
u8 *tile_ptr; \
|
|
u32 obj_count = obj_priority_count[priority][vcount]; \
|
|
u8 *obj_list = obj_priority_list[priority][vcount]; \
|
|
\
|
|
for(obj_num = 0; obj_num < obj_count; obj_num++) \
|
|
{ \
|
|
oam_ptr = oam_ram + (obj_list[obj_num] * 4); \
|
|
obj_attribute_0 = oam_ptr[0]; \
|
|
obj_attribute_1 = oam_ptr[1]; \
|
|
obj_attribute_2 = oam_ptr[2]; \
|
|
obj_size = ((obj_attribute_0 >> 12) & 0x0C) | (obj_attribute_1 >> 14); \
|
|
\
|
|
obj_x = (s32)(obj_attribute_1 << 23) >> 23; \
|
|
obj_width = obj_width_table[obj_size]; \
|
|
\
|
|
render_scanline_obj_prologue_##combine_op(alpha_op); \
|
|
\
|
|
obj_y = obj_attribute_0 & 0xFF; \
|
|
\
|
|
if(obj_y > 160) \
|
|
obj_y -= 256; \
|
|
\
|
|
obj_height = obj_height_table[obj_size]; \
|
|
render_scanline_obj_##partial_alpha_op(combine_op, alpha_op, map_space); \
|
|
} \
|
|
} \
|
|
|
|
render_scanline_obj_builder(transparent, normal, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, normal, 2D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, color16, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, color16, 2D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, color32, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, color32, 2D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, alpha_obj, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, alpha_obj, 2D, no_partial_alpha);
|
|
render_scanline_obj_builder(transparent, partial_alpha, 1D, partial_alpha);
|
|
render_scanline_obj_builder(transparent, partial_alpha, 2D, partial_alpha);
|
|
render_scanline_obj_builder(copy, copy_tile, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(copy, copy_tile, 2D, no_partial_alpha);
|
|
render_scanline_obj_builder(copy, copy_bitmap, 1D, no_partial_alpha);
|
|
render_scanline_obj_builder(copy, copy_bitmap, 2D, no_partial_alpha);
|
|
|
|
|
|
|
|
static void order_obj(u32 video_mode)
|
|
{
|
|
s32 obj_num, priority, row;
|
|
s32 obj_x, obj_y;
|
|
s32 obj_size, obj_mode;
|
|
s32 obj_width, obj_height;
|
|
u32 obj_priority;
|
|
u32 obj_attribute_0, obj_attribute_1, obj_attribute_2;
|
|
u32 current_count;
|
|
u16 *oam_ptr = oam_ram + 508;
|
|
|
|
for(priority = 0; priority < 5; priority++)
|
|
{
|
|
for(row = 0; row < 160; row++)
|
|
obj_priority_count[priority][row] = 0;
|
|
}
|
|
|
|
for(row = 0; row < 160; row++)
|
|
obj_alpha_count[row] = 0;
|
|
|
|
for(obj_num = 127; obj_num >= 0; obj_num--, oam_ptr -= 4)
|
|
{
|
|
obj_attribute_0 = oam_ptr[0];
|
|
obj_attribute_2 = oam_ptr[2];
|
|
obj_size = obj_attribute_0 & 0xC000;
|
|
obj_priority = (obj_attribute_2 >> 10) & 0x03;
|
|
obj_mode = (obj_attribute_0 >> 10) & 0x03;
|
|
|
|
if(((obj_attribute_0 & 0x0300) != 0x0200) && (obj_size != 0xC000) &&
|
|
(obj_mode != 3) && ((video_mode < 3) ||
|
|
((obj_attribute_2 & 0x3FF) >= 512)))
|
|
{
|
|
obj_y = obj_attribute_0 & 0xFF;
|
|
if(obj_y > 160)
|
|
obj_y -= 256;
|
|
|
|
obj_attribute_1 = oam_ptr[1];
|
|
obj_size = ((obj_size >> 12) & 0x0C) | (obj_attribute_1 >> 14);
|
|
obj_height = obj_height_table[obj_size];
|
|
obj_width = obj_width_table[obj_size];
|
|
|
|
if(obj_attribute_0 & 0x200)
|
|
{
|
|
obj_height *= 2;
|
|
obj_width *= 2;
|
|
}
|
|
|
|
if(((obj_y + obj_height) > 0) && (obj_y < 160))
|
|
{
|
|
obj_x = (s32)(obj_attribute_1 << 23) >> 23;
|
|
|
|
if(((obj_x + obj_width) > 0) && (obj_x < 240))
|
|
{
|
|
if(obj_y < 0)
|
|
{
|
|
obj_height += obj_y;
|
|
obj_y = 0;
|
|
}
|
|
|
|
if((obj_y + obj_height) >= 160)
|
|
obj_height = 160 - obj_y;
|
|
|
|
if(obj_mode == 1)
|
|
{
|
|
for(row = obj_y; row < obj_y + obj_height; row++)
|
|
{
|
|
current_count = obj_priority_count[obj_priority][row];
|
|
obj_priority_list[obj_priority][row][current_count] = obj_num;
|
|
obj_priority_count[obj_priority][row] = current_count + 1;
|
|
obj_alpha_count[row]++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(obj_mode == 2)
|
|
obj_priority = 4;
|
|
|
|
for(row = obj_y; row < obj_y + obj_height; row++)
|
|
{
|
|
current_count = obj_priority_count[obj_priority][row];
|
|
obj_priority_list[obj_priority][row][current_count] = obj_num;
|
|
obj_priority_count[obj_priority][row] = current_count + 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
u32 layer_order[16];
|
|
u32 layer_count;
|
|
|
|
static void order_layers(u32 layer_flags)
|
|
{
|
|
s32 priority, layer_number;
|
|
layer_count = 0;
|
|
|
|
for(priority = 3; priority >= 0; priority--)
|
|
{
|
|
for(layer_number = 3; layer_number >= 0; layer_number--)
|
|
{
|
|
if(((layer_flags >> layer_number) & 1) &&
|
|
((io_registers[REG_BG0CNT + layer_number] & 0x03) == priority))
|
|
{
|
|
layer_order[layer_count] = layer_number;
|
|
layer_count++;
|
|
}
|
|
}
|
|
|
|
if((obj_priority_count[priority][io_registers[REG_VCOUNT]] > 0)
|
|
&& (layer_flags & 0x10))
|
|
{
|
|
layer_order[layer_count] = priority | 0x04;
|
|
layer_count++;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define fill_line(_start, _end) \
|
|
u32 i; \
|
|
\
|
|
for(i = _start; i < _end; i++) \
|
|
dest_ptr[i] = color; \
|
|
|
|
|
|
#define fill_line_color_normal() \
|
|
color = palette_ram_converted[color] \
|
|
|
|
#define fill_line_color_alpha() \
|
|
|
|
#define fill_line_color_color16() \
|
|
|
|
#define fill_line_color_color32() \
|
|
|
|
#define fill_line_builder(type) \
|
|
static void fill_line_##type(u16 color, render_scanline_dest_##type *dest_ptr,\
|
|
u32 start, u32 end) \
|
|
{ \
|
|
fill_line_color_##type(); \
|
|
fill_line(start, end); \
|
|
} \
|
|
|
|
fill_line_builder(normal);
|
|
fill_line_builder(alpha);
|
|
fill_line_builder(color16);
|
|
fill_line_builder(color32);
|
|
|
|
|
|
// Alpha blend two pixels (pixel_top and pixel_bottom).
|
|
|
|
#define blend_pixel() \
|
|
pixel_bottom = palette_ram_converted[(pixel_pair >> 16) & 0x1FF]; \
|
|
pixel_bottom = (pixel_bottom | (pixel_bottom << 16)) & 0x07E0F81F; \
|
|
pixel_top = ((pixel_top * blend_a) + (pixel_bottom * blend_b)) >> 4 \
|
|
|
|
|
|
// Alpha blend two pixels, allowing for saturation (individual channels > 31).
|
|
// The operation is optimized towards saturation not occuring.
|
|
|
|
#define blend_saturate_pixel() \
|
|
pixel_bottom = palette_ram_converted[(pixel_pair >> 16) & 0x1FF]; \
|
|
pixel_bottom = (pixel_bottom | (pixel_bottom << 16)) & 0x07E0F81F; \
|
|
pixel_top = ((pixel_top * blend_a) + (pixel_bottom * blend_b)) >> 4; \
|
|
if(pixel_top & 0x08010020) \
|
|
{ \
|
|
if(pixel_top & 0x08000000) \
|
|
pixel_top |= 0x07E00000; \
|
|
\
|
|
if(pixel_top & 0x00010000) \
|
|
pixel_top |= 0x0000F800; \
|
|
\
|
|
if(pixel_top & 0x00000020) \
|
|
pixel_top |= 0x0000001F; \
|
|
} \
|
|
|
|
#define brighten_pixel() \
|
|
pixel_top = upper + ((pixel_top * blend) >> 4); \
|
|
|
|
#define darken_pixel() \
|
|
pixel_top = (pixel_top * blend) >> 4; \
|
|
|
|
#define effect_condition_alpha \
|
|
((pixel_pair & 0x04000200) == 0x04000200) \
|
|
|
|
#define effect_condition_fade(pixel_source) \
|
|
((pixel_source & 0x00000200) == 0x00000200) \
|
|
|
|
#define expand_pixel_no_dest(expand_type, pixel_source) \
|
|
pixel_top = (pixel_top | (pixel_top << 16)) & 0x07E0F81F; \
|
|
expand_type##_pixel(); \
|
|
pixel_top &= 0x07E0F81F; \
|
|
pixel_top = (pixel_top >> 16) | pixel_top \
|
|
|
|
#define expand_pixel(expand_type, pixel_source) \
|
|
pixel_top = palette_ram_converted[pixel_source & 0x1FF]; \
|
|
expand_pixel_no_dest(expand_type, pixel_source); \
|
|
*screen_dest_ptr = pixel_top \
|
|
|
|
#define expand_loop(expand_type, effect_condition, pixel_source) \
|
|
screen_src_ptr += start; \
|
|
screen_dest_ptr += start; \
|
|
\
|
|
end -= start; \
|
|
\
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_source = *screen_src_ptr; \
|
|
if(effect_condition) \
|
|
{ \
|
|
expand_pixel(expand_type, pixel_source); \
|
|
} \
|
|
else \
|
|
{ \
|
|
*screen_dest_ptr = \
|
|
palette_ram_converted[pixel_source & 0x1FF]; \
|
|
} \
|
|
\
|
|
screen_src_ptr++; \
|
|
screen_dest_ptr++; \
|
|
} \
|
|
|
|
|
|
#define expand_loop_partial_alpha(alpha_expand, expand_type) \
|
|
screen_src_ptr += start; \
|
|
screen_dest_ptr += start; \
|
|
\
|
|
end -= start; \
|
|
\
|
|
for(i = 0; i < end; i++) \
|
|
{ \
|
|
pixel_pair = *screen_src_ptr; \
|
|
if(effect_condition_fade(pixel_pair)) \
|
|
{ \
|
|
if(effect_condition_alpha) \
|
|
{ \
|
|
expand_pixel(alpha_expand, pixel_pair); \
|
|
} \
|
|
else \
|
|
{ \
|
|
expand_pixel(expand_type, pixel_pair); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
*screen_dest_ptr = \
|
|
palette_ram_converted[pixel_pair & 0x1FF]; \
|
|
} \
|
|
\
|
|
screen_src_ptr++; \
|
|
screen_dest_ptr++; \
|
|
} \
|
|
|
|
|
|
#define expand_partial_alpha(expand_type) \
|
|
if((blend_a + blend_b) > 16) \
|
|
{ \
|
|
expand_loop_partial_alpha(blend_saturate, expand_type); \
|
|
} \
|
|
else \
|
|
{ \
|
|
expand_loop_partial_alpha(blend, expand_type); \
|
|
} \
|
|
|
|
|
|
|
|
// Blend top two pixels of scanline with each other.
|
|
|
|
#define expand_normal(screen_ptr, start, end)
|
|
|
|
|
|
void expand_blend(u32 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end);
|
|
|
|
#ifndef ARM_ARCH_BLENDING_OPTS
|
|
|
|
void expand_blend(u32 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end)
|
|
{
|
|
u32 pixel_pair;
|
|
u32 pixel_top, pixel_bottom;
|
|
u32 bldalpha = io_registers[REG_BLDALPHA];
|
|
u32 blend_a = bldalpha & 0x1F;
|
|
u32 blend_b = (bldalpha >> 8) & 0x1F;
|
|
u32 i;
|
|
|
|
if(blend_a > 16)
|
|
blend_a = 16;
|
|
|
|
if(blend_b > 16)
|
|
blend_b = 16;
|
|
|
|
// The individual colors can saturate over 31, this should be taken
|
|
// care of in an alternate pass as it incurs a huge additional speedhit.
|
|
if((blend_a + blend_b) > 16)
|
|
{
|
|
expand_loop(blend_saturate, effect_condition_alpha, pixel_pair);
|
|
}
|
|
else
|
|
{
|
|
expand_loop(blend, effect_condition_alpha, pixel_pair);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
// Blend scanline with white.
|
|
|
|
static void expand_darken(u16 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end)
|
|
{
|
|
u32 pixel_top;
|
|
s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F);
|
|
u32 i;
|
|
|
|
if(blend < 0)
|
|
blend = 0;
|
|
|
|
expand_loop(darken, effect_condition_fade(pixel_top), pixel_top);
|
|
}
|
|
|
|
|
|
// Blend scanline with black.
|
|
|
|
static void expand_brighten(u16 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end)
|
|
{
|
|
u32 pixel_top;
|
|
u32 blend = io_registers[REG_BLDY] & 0x1F;
|
|
u32 upper;
|
|
u32 i;
|
|
|
|
if(blend > 16)
|
|
blend = 16;
|
|
|
|
upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F;
|
|
blend = 16 - blend;
|
|
|
|
expand_loop(brighten, effect_condition_fade(pixel_top), pixel_top);
|
|
|
|
}
|
|
|
|
|
|
// Expand scanline such that if both top and bottom pass it's alpha,
|
|
// if only top passes it's as specified, and if neither pass it's normal.
|
|
|
|
static void expand_darken_partial_alpha(u32 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end)
|
|
{
|
|
s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F);
|
|
u32 pixel_pair;
|
|
u32 pixel_top, pixel_bottom;
|
|
u32 bldalpha = io_registers[REG_BLDALPHA];
|
|
u32 blend_a = bldalpha & 0x1F;
|
|
u32 blend_b = (bldalpha >> 8) & 0x1F;
|
|
u32 i;
|
|
|
|
if(blend < 0)
|
|
blend = 0;
|
|
|
|
if(blend_a > 16)
|
|
blend_a = 16;
|
|
|
|
if(blend_b > 16)
|
|
blend_b = 16;
|
|
|
|
expand_partial_alpha(darken);
|
|
}
|
|
|
|
|
|
static void expand_brighten_partial_alpha(u32 *screen_src_ptr, u16 *screen_dest_ptr,
|
|
u32 start, u32 end)
|
|
{
|
|
s32 blend = io_registers[REG_BLDY] & 0x1F;
|
|
u32 pixel_pair;
|
|
u32 pixel_top, pixel_bottom;
|
|
u32 bldalpha = io_registers[REG_BLDALPHA];
|
|
u32 blend_a = bldalpha & 0x1F;
|
|
u32 blend_b = (bldalpha >> 8) & 0x1F;
|
|
u32 upper;
|
|
u32 i;
|
|
|
|
if(blend > 16)
|
|
blend = 16;
|
|
|
|
upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F;
|
|
blend = 16 - blend;
|
|
|
|
if(blend_a > 16)
|
|
blend_a = 16;
|
|
|
|
if(blend_b > 16)
|
|
blend_b = 16;
|
|
|
|
expand_partial_alpha(brighten);
|
|
}
|
|
|
|
|
|
// Render an OBJ layer from start to end, depending on the type (1D or 2D)
|
|
// stored in dispcnt.
|
|
|
|
#define render_obj_layer(type, dest, _start, _end) \
|
|
current_layer &= ~0x04; \
|
|
if(dispcnt & 0x40) \
|
|
render_scanline_obj_##type##_1D(current_layer, _start, _end, dest); \
|
|
else \
|
|
render_scanline_obj_##type##_2D(current_layer, _start, _end, dest) \
|
|
|
|
|
|
// Render a target all the way with the background color as taken from the
|
|
// palette.
|
|
|
|
#define fill_line_bg(type, dest, _start, _end) \
|
|
fill_line_##type(0, dest, _start, _end) \
|
|
|
|
|
|
// Render all layers as they appear in the layer order.
|
|
|
|
#define render_layers(tile_alpha, obj_alpha, dest) \
|
|
{ \
|
|
current_layer = layer_order[0]; \
|
|
if(current_layer & 0x04) \
|
|
{ \
|
|
/* If the first one is OBJ render the background then render it. */ \
|
|
fill_line_bg(tile_alpha, dest, 0, 240); \
|
|
render_obj_layer(obj_alpha, dest, 0, 240); \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* Otherwise render a base layer. */ \
|
|
layer_renderers[current_layer].tile_alpha##_render_base(current_layer, \
|
|
0, 240, dest); \
|
|
} \
|
|
\
|
|
/* Render the rest of the layers. */ \
|
|
for(layer_order_pos = 1; layer_order_pos < layer_count; layer_order_pos++) \
|
|
{ \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
if(current_layer & 0x04) \
|
|
{ \
|
|
render_obj_layer(obj_alpha, dest, 0, 240); \
|
|
} \
|
|
else \
|
|
{ \
|
|
layer_renderers[current_layer]. \
|
|
tile_alpha##_render_transparent(current_layer, 0, 240, dest); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
#define render_condition_alpha \
|
|
(((io_registers[REG_BLDALPHA] & 0x1F1F) != 0x001F) && \
|
|
((io_registers[REG_BLDCNT] & 0x3F) != 0) && \
|
|
((io_registers[REG_BLDCNT] & 0x3F00) != 0)) \
|
|
|
|
#define render_condition_fade \
|
|
(((io_registers[REG_BLDY] & 0x1F) != 0) && \
|
|
((io_registers[REG_BLDCNT] & 0x3F) != 0)) \
|
|
|
|
#define render_layers_color_effect(renderer, layer_condition, \
|
|
alpha_condition, fade_condition, _start, _end) \
|
|
{ \
|
|
if(layer_condition) \
|
|
{ \
|
|
if(obj_alpha_count[io_registers[REG_VCOUNT]] > 0) \
|
|
{ \
|
|
/* Render based on special effects mode. */ \
|
|
u32 screen_buffer[240]; \
|
|
switch((bldcnt >> 6) & 0x03) \
|
|
{ \
|
|
/* Alpha blend */ \
|
|
case 0x01: \
|
|
{ \
|
|
if(alpha_condition) \
|
|
{ \
|
|
renderer(alpha, alpha_obj, screen_buffer); \
|
|
expand_blend(screen_buffer, scanline, _start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Fade to white */ \
|
|
case 0x02: \
|
|
{ \
|
|
if(fade_condition) \
|
|
{ \
|
|
renderer(color32, partial_alpha, screen_buffer); \
|
|
expand_brighten_partial_alpha(screen_buffer, scanline, \
|
|
_start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Fade to black */ \
|
|
case 0x03: \
|
|
{ \
|
|
if(fade_condition) \
|
|
{ \
|
|
renderer(color32, partial_alpha, screen_buffer); \
|
|
expand_darken_partial_alpha(screen_buffer, scanline, \
|
|
_start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
} \
|
|
\
|
|
renderer(color32, partial_alpha, screen_buffer); \
|
|
expand_blend(screen_buffer, scanline, _start, _end); \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* Render based on special effects mode. */ \
|
|
switch((bldcnt >> 6) & 0x03) \
|
|
{ \
|
|
/* Alpha blend */ \
|
|
case 0x01: \
|
|
{ \
|
|
if(alpha_condition) \
|
|
{ \
|
|
u32 screen_buffer[240]; \
|
|
renderer(alpha, alpha_obj, screen_buffer); \
|
|
expand_blend(screen_buffer, scanline, _start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Fade to white */ \
|
|
case 0x02: \
|
|
{ \
|
|
if(fade_condition) \
|
|
{ \
|
|
renderer(color16, color16, scanline); \
|
|
expand_brighten(scanline, scanline, _start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Fade to black */ \
|
|
case 0x03: \
|
|
{ \
|
|
if(fade_condition) \
|
|
{ \
|
|
renderer(color16, color16, scanline); \
|
|
expand_darken(scanline, scanline, _start, _end); \
|
|
return; \
|
|
} \
|
|
break; \
|
|
} \
|
|
} \
|
|
\
|
|
renderer(normal, normal, scanline); \
|
|
expand_normal(scanline, _start, _end); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
u32 pixel_top = palette_ram_converted[0]; \
|
|
switch((bldcnt >> 6) & 0x03) \
|
|
{ \
|
|
/* Fade to white */ \
|
|
case 0x02: \
|
|
{ \
|
|
if(color_combine_mask_a(5)) \
|
|
{ \
|
|
u32 blend = io_registers[REG_BLDY] & 0x1F; \
|
|
u32 upper; \
|
|
\
|
|
if(blend > 16) \
|
|
blend = 16; \
|
|
\
|
|
upper = ((0x07E0F81F * blend) >> 4) & 0x07E0F81F; \
|
|
blend = 16 - blend; \
|
|
\
|
|
expand_pixel_no_dest(brighten, pixel_top); \
|
|
} \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Fade to black */ \
|
|
case 0x03: \
|
|
{ \
|
|
if(color_combine_mask_a(5)) \
|
|
{ \
|
|
s32 blend = 16 - (io_registers[REG_BLDY] & 0x1F); \
|
|
\
|
|
if(blend < 0) \
|
|
blend = 0; \
|
|
\
|
|
expand_pixel_no_dest(darken, pixel_top); \
|
|
} \
|
|
break; \
|
|
} \
|
|
} \
|
|
fill_line_color16(pixel_top, scanline, _start, _end); \
|
|
} \
|
|
} \
|
|
|
|
|
|
// Renders an entire scanline from 0 to 240, based on current color mode.
|
|
|
|
static void render_scanline_tile(u16 *scanline, u32 dispcnt)
|
|
{
|
|
u32 current_layer;
|
|
u32 layer_order_pos;
|
|
u32 bldcnt = io_registers[REG_BLDCNT];
|
|
render_scanline_layer_functions_tile();
|
|
|
|
render_layers_color_effect(render_layers, layer_count,
|
|
render_condition_alpha, render_condition_fade, 0, 240);
|
|
}
|
|
|
|
static void render_scanline_bitmap(u16 *scanline, u32 dispcnt)
|
|
{
|
|
render_scanline_layer_functions_bitmap();
|
|
u32 current_layer;
|
|
u32 layer_order_pos;
|
|
|
|
fill_line_bg(normal, scanline, 0, 240);
|
|
|
|
for(layer_order_pos = 0; layer_order_pos < layer_count; layer_order_pos++)
|
|
{
|
|
current_layer = layer_order[layer_order_pos];
|
|
if(current_layer & 0x04)
|
|
{
|
|
render_obj_layer(normal, scanline, 0, 240);
|
|
}
|
|
else
|
|
{
|
|
layer_renderers->normal_render(0, 240, scanline);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Render layers from start to end based on if they're allowed in the
|
|
// enable flags.
|
|
|
|
#define render_layers_conditional(tile_alpha, obj_alpha, dest) \
|
|
{ \
|
|
__label__ skip; \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
/* If OBJ aren't enabled skip to the first non-OBJ layer */ \
|
|
if(!(enable_flags & 0x10)) \
|
|
{ \
|
|
while((current_layer & 0x04) || !((1 << current_layer) & enable_flags)) \
|
|
{ \
|
|
layer_order_pos++; \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
\
|
|
/* Oops, ran out of layers, render the background. */ \
|
|
if(layer_order_pos == layer_count) \
|
|
{ \
|
|
fill_line_bg(tile_alpha, dest, start, end); \
|
|
goto skip; \
|
|
} \
|
|
} \
|
|
\
|
|
/* Render the first valid layer */ \
|
|
layer_renderers[current_layer].tile_alpha##_render_base(current_layer, \
|
|
start, end, dest); \
|
|
\
|
|
layer_order_pos++; \
|
|
\
|
|
/* Render the rest of the layers if active, skipping OBJ ones. */ \
|
|
for(; layer_order_pos < layer_count; layer_order_pos++) \
|
|
{ \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
if(!(current_layer & 0x04) && ((1 << current_layer) & enable_flags)) \
|
|
{ \
|
|
layer_renderers[current_layer]. \
|
|
tile_alpha##_render_transparent(current_layer, start, end, dest); \
|
|
} \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* Find the first active layer, skip all of the inactive ones */ \
|
|
while(!((current_layer & 0x04) || ((1 << current_layer) & enable_flags))) \
|
|
{ \
|
|
layer_order_pos++; \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
\
|
|
/* Oops, ran out of layers, render the background. */ \
|
|
if(layer_order_pos == layer_count) \
|
|
{ \
|
|
fill_line_bg(tile_alpha, dest, start, end); \
|
|
goto skip; \
|
|
} \
|
|
} \
|
|
\
|
|
if(current_layer & 0x04) \
|
|
{ \
|
|
/* If the first one is OBJ render the background then render it. */ \
|
|
fill_line_bg(tile_alpha, dest, start, end); \
|
|
render_obj_layer(obj_alpha, dest, start, end); \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* Otherwise render a base layer. */ \
|
|
layer_renderers[current_layer]. \
|
|
tile_alpha##_render_base(current_layer, start, end, dest); \
|
|
} \
|
|
\
|
|
layer_order_pos++; \
|
|
\
|
|
/* Render the rest of the layers. */ \
|
|
for(; layer_order_pos < layer_count; layer_order_pos++) \
|
|
{ \
|
|
current_layer = layer_order[layer_order_pos]; \
|
|
if(current_layer & 0x04) \
|
|
{ \
|
|
render_obj_layer(obj_alpha, dest, start, end); \
|
|
} \
|
|
else \
|
|
{ \
|
|
if(enable_flags & (1 << current_layer)) \
|
|
{ \
|
|
layer_renderers[current_layer]. \
|
|
tile_alpha##_render_transparent(current_layer, start, end, dest); \
|
|
} \
|
|
} \
|
|
} \
|
|
} \
|
|
\
|
|
skip: \
|
|
; \
|
|
} \
|
|
|
|
|
|
// Render all of the BG and OBJ in a tiled scanline from start to end ONLY if
|
|
// enable_flag allows that layer/OBJ. Also conditionally render color effects.
|
|
|
|
static void render_scanline_conditional_tile(u32 start, u32 end, u16 *scanline,
|
|
u32 enable_flags, u32 dispcnt, u32 bldcnt, const tile_layer_render_struct
|
|
*layer_renderers)
|
|
{
|
|
u32 current_layer;
|
|
u32 layer_order_pos = 0;
|
|
|
|
render_layers_color_effect(render_layers_conditional,
|
|
(layer_count && (enable_flags & 0x1F)),
|
|
((enable_flags & 0x20) && render_condition_alpha),
|
|
((enable_flags & 0x20) && render_condition_fade), start, end);
|
|
}
|
|
|
|
|
|
// Render the BG and OBJ in a bitmap scanline from start to end ONLY if
|
|
// enable_flag allows that layer/OBJ. Also conditionally render color effects.
|
|
|
|
static void render_scanline_conditional_bitmap(u32 start, u32 end, u16 *scanline,
|
|
u32 enable_flags, u32 dispcnt, u32 bldcnt, const bitmap_layer_render_struct
|
|
*layer_renderers)
|
|
{
|
|
u32 current_layer;
|
|
u32 layer_order_pos;
|
|
|
|
fill_line_bg(normal, scanline, start, end);
|
|
|
|
for(layer_order_pos = 0; layer_order_pos < layer_count; layer_order_pos++)
|
|
{
|
|
current_layer = layer_order[layer_order_pos];
|
|
if(current_layer & 0x04)
|
|
{
|
|
if(enable_flags & 0x10)
|
|
{
|
|
render_obj_layer(normal, scanline, start, end);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(enable_flags & 0x04)
|
|
layer_renderers->normal_render(start, end, scanline);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#define window_x_coords(window_number) \
|
|
window_##window_number##_x1 = \
|
|
io_registers[REG_WIN##window_number##H] >> 8; \
|
|
window_##window_number##_x2 = \
|
|
io_registers[REG_WIN##window_number##H] & 0xFF; \
|
|
window_##window_number##_enable = \
|
|
(winin >> (window_number * 8)) & 0x3F; \
|
|
\
|
|
if(window_##window_number##_x1 > 240) \
|
|
window_##window_number##_x1 = 240; \
|
|
\
|
|
if(window_##window_number##_x2 > 240) \
|
|
window_##window_number##_x2 = 240 \
|
|
|
|
#define window_coords(window_number) \
|
|
u32 window_##window_number##_x1, window_##window_number##_x2; \
|
|
u32 window_##window_number##_y1, window_##window_number##_y2; \
|
|
u32 window_##window_number##_enable = 0; \
|
|
window_##window_number##_y1 = \
|
|
io_registers[REG_WIN##window_number##V] >> 8; \
|
|
window_##window_number##_y2 = \
|
|
io_registers[REG_WIN##window_number##V] & 0xFF; \
|
|
\
|
|
if(window_##window_number##_y1 > window_##window_number##_y2) \
|
|
{ \
|
|
if((((vcount <= window_##window_number##_y2) || \
|
|
(vcount > window_##window_number##_y1)) || \
|
|
(window_##window_number##_y2 > 227)) && \
|
|
(window_##window_number##_y1 <= 227)) \
|
|
{ \
|
|
window_x_coords(window_number); \
|
|
} \
|
|
else \
|
|
{ \
|
|
window_##window_number##_x1 = 240; \
|
|
window_##window_number##_x2 = 240; \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
if((((vcount >= window_##window_number##_y1) && \
|
|
(vcount < window_##window_number##_y2)) || \
|
|
(window_##window_number##_y2 > 227)) && \
|
|
(window_##window_number##_y1 <= 227)) \
|
|
{ \
|
|
window_x_coords(window_number); \
|
|
} \
|
|
else \
|
|
{ \
|
|
window_##window_number##_x1 = 240; \
|
|
window_##window_number##_x2 = 240; \
|
|
} \
|
|
} \
|
|
|
|
#define render_window_segment(type, start, end, window_type) \
|
|
if(start != end) \
|
|
{ \
|
|
render_scanline_conditional_##type(start, end, scanline, \
|
|
window_##window_type##_enable, dispcnt, bldcnt, layer_renderers); \
|
|
} \
|
|
|
|
#define render_window_segment_unequal(type, start, end, window_type) \
|
|
render_scanline_conditional_##type(start, end, scanline, \
|
|
window_##window_type##_enable, dispcnt, bldcnt, layer_renderers) \
|
|
|
|
#define render_window_segment_clip(type, clip_start, clip_end, start, end, \
|
|
window_type) \
|
|
{ \
|
|
if(start != end) \
|
|
{ \
|
|
if(start < clip_start) \
|
|
{ \
|
|
if(end > clip_start) \
|
|
{ \
|
|
if(end > clip_end) \
|
|
{ \
|
|
render_window_segment_unequal(type, clip_start, clip_end, \
|
|
window_type); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment_unequal(type, clip_start, end, window_type); \
|
|
} \
|
|
} \
|
|
} \
|
|
else \
|
|
\
|
|
if(end > clip_end) \
|
|
{ \
|
|
if(start < clip_end) \
|
|
render_window_segment_unequal(type, start, clip_end, window_type); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment_unequal(type, start, end, window_type); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
#define render_window_clip_1(type, start, end) \
|
|
if(window_1_x1 != 240) \
|
|
{ \
|
|
if(window_1_x1 > window_1_x2) \
|
|
{ \
|
|
render_window_segment_clip(type, start, end, 0, window_1_x2, 1); \
|
|
render_window_segment_clip(type, start, end, window_1_x2, window_1_x1, \
|
|
out); \
|
|
render_window_segment_clip(type, start, end, window_1_x1, 240, 1); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment_clip(type, start, end, 0, window_1_x1, out); \
|
|
render_window_segment_clip(type, start, end, window_1_x1, window_1_x2, \
|
|
1); \
|
|
render_window_segment_clip(type, start, end, window_1_x2, 240, out); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment(type, start, end, out); \
|
|
} \
|
|
|
|
#define render_window_clip_obj(type, start, end); \
|
|
render_window_segment(type, start, end, out); \
|
|
if(dispcnt & 0x40) \
|
|
render_scanline_obj_copy_##type##_1D(4, start, end, scanline); \
|
|
else \
|
|
render_scanline_obj_copy_##type##_2D(4, start, end, scanline) \
|
|
|
|
|
|
#define render_window_segment_clip_obj(type, clip_start, clip_end, start, \
|
|
end) \
|
|
{ \
|
|
if(start != end) \
|
|
{ \
|
|
if(start < clip_start) \
|
|
{ \
|
|
if(end > clip_start) \
|
|
{ \
|
|
if(end > clip_end) \
|
|
{ \
|
|
render_window_clip_obj(type, clip_start, clip_end); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_clip_obj(type, clip_start, end); \
|
|
} \
|
|
} \
|
|
} \
|
|
else \
|
|
\
|
|
if(end > clip_end) \
|
|
{ \
|
|
if(start < clip_end) \
|
|
{ \
|
|
render_window_clip_obj(type, start, clip_end); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_clip_obj(type, start, end); \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
|
|
#define render_window_clip_1_obj(type, start, end) \
|
|
if(window_1_x1 != 240) \
|
|
{ \
|
|
if(window_1_x1 > window_1_x2) \
|
|
{ \
|
|
render_window_segment_clip(type, start, end, 0, window_1_x2, 1); \
|
|
render_window_segment_clip_obj(type, start, end, window_1_x2, \
|
|
window_1_x1); \
|
|
render_window_segment_clip(type, start, end, window_1_x1, 240, 1); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment_clip_obj(type, start, end, 0, window_1_x1); \
|
|
render_window_segment_clip(type, start, end, window_1_x1, window_1_x2, \
|
|
1); \
|
|
render_window_segment_clip_obj(type, start, end, window_1_x2, 240); \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_clip_obj(type, start, end); \
|
|
} \
|
|
|
|
|
|
|
|
#define render_window_single(type, window_number) \
|
|
u32 winin = io_registers[REG_WININ]; \
|
|
window_coords(window_number); \
|
|
if(window_##window_number##_x1 > window_##window_number##_x2) \
|
|
{ \
|
|
render_window_segment(type, 0, window_##window_number##_x2, \
|
|
window_number); \
|
|
render_window_segment(type, window_##window_number##_x2, \
|
|
window_##window_number##_x1, out); \
|
|
render_window_segment(type, window_##window_number##_x1, 240, \
|
|
window_number); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_segment(type, 0, window_##window_number##_x1, out); \
|
|
render_window_segment(type, window_##window_number##_x1, \
|
|
window_##window_number##_x2, window_number); \
|
|
render_window_segment(type, window_##window_number##_x2, 240, out); \
|
|
} \
|
|
|
|
#define render_window_multi(type, front, back) \
|
|
if(window_##front##_x1 > window_##front##_x2) \
|
|
{ \
|
|
render_window_segment(type, 0, window_##front##_x2, front); \
|
|
render_window_clip_##back(type, window_##front##_x2, \
|
|
window_##front##_x1); \
|
|
render_window_segment(type, window_##front##_x1, 240, front); \
|
|
} \
|
|
else \
|
|
{ \
|
|
render_window_clip_##back(type, 0, window_##front##_x1); \
|
|
render_window_segment(type, window_##front##_x1, window_##front##_x2, \
|
|
front); \
|
|
render_window_clip_##back(type, window_##front##_x2, 240); \
|
|
} \
|
|
|
|
#define render_scanline_window_builder(type) \
|
|
static void render_scanline_window_##type(u16 *scanline, u32 dispcnt) \
|
|
{ \
|
|
u32 vcount = io_registers[REG_VCOUNT]; \
|
|
u32 winout = io_registers[REG_WINOUT]; \
|
|
u32 bldcnt = io_registers[REG_BLDCNT]; \
|
|
u32 window_out_enable = winout & 0x3F; \
|
|
\
|
|
render_scanline_layer_functions_##type(); \
|
|
\
|
|
switch(dispcnt >> 13) \
|
|
{ \
|
|
/* Just window 0 */ \
|
|
case 0x01: \
|
|
{ \
|
|
render_window_single(type, 0); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Just window 1 */ \
|
|
case 0x02: \
|
|
{ \
|
|
render_window_single(type, 1); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Windows 1 and 2 */ \
|
|
case 0x03: \
|
|
{ \
|
|
u32 winin = io_registers[REG_WININ]; \
|
|
window_coords(0); \
|
|
window_coords(1); \
|
|
render_window_multi(type, 0, 1); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Just OBJ windows */ \
|
|
case 0x04: \
|
|
{ \
|
|
render_window_clip_obj(type, 0, 240); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Window 0 and OBJ window */ \
|
|
case 0x05: \
|
|
{ \
|
|
u32 winin = io_registers[REG_WININ]; \
|
|
window_coords(0); \
|
|
render_window_multi(type, 0, obj); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Window 1 and OBJ window */ \
|
|
case 0x06: \
|
|
{ \
|
|
u32 winin = io_registers[REG_WININ]; \
|
|
window_coords(1); \
|
|
render_window_multi(type, 1, obj); \
|
|
break; \
|
|
} \
|
|
\
|
|
/* Window 0, 1, and OBJ window */ \
|
|
case 0x07: \
|
|
{ \
|
|
u32 winin = io_registers[REG_WININ]; \
|
|
window_coords(0); \
|
|
window_coords(1); \
|
|
render_window_multi(type, 0, 1_obj); \
|
|
break; \
|
|
} \
|
|
} \
|
|
} \
|
|
|
|
render_scanline_window_builder(tile);
|
|
render_scanline_window_builder(bitmap);
|
|
|
|
static const u32 active_layers[6] = { 0x1F, 0x17, 0x1C, 0x14, 0x14, 0x14 };
|
|
|
|
void update_scanline(void)
|
|
{
|
|
u32 pitch = get_screen_pitch();
|
|
u32 dispcnt = io_registers[REG_DISPCNT];
|
|
u32 vcount = io_registers[REG_VCOUNT];
|
|
u16 *screen_offset = get_screen_pixels() + (vcount * pitch);
|
|
u32 video_mode = dispcnt & 0x07;
|
|
|
|
// If OAM has been modified since the last scanline has been updated then
|
|
// reorder and reprofile the OBJ lists.
|
|
if(reg[OAM_UPDATED])
|
|
{
|
|
order_obj(video_mode);
|
|
reg[OAM_UPDATED] = 0;
|
|
}
|
|
|
|
order_layers((dispcnt >> 8) & active_layers[video_mode]);
|
|
|
|
if(skip_next_frame)
|
|
return;
|
|
|
|
// If the screen is in in forced blank draw pure white.
|
|
if(dispcnt & 0x80)
|
|
{
|
|
fill_line_color16(0xFFFF, screen_offset, 0, 240);
|
|
}
|
|
else
|
|
{
|
|
if(video_mode < 3)
|
|
{
|
|
if(dispcnt >> 13)
|
|
{
|
|
render_scanline_window_tile(screen_offset, dispcnt);
|
|
}
|
|
else
|
|
{
|
|
render_scanline_tile(screen_offset, dispcnt);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(dispcnt >> 13)
|
|
render_scanline_window_bitmap(screen_offset, dispcnt);
|
|
else
|
|
render_scanline_bitmap(screen_offset, dispcnt);
|
|
}
|
|
}
|
|
|
|
affine_reference_x[0] += (s16)io_registers[REG_BG2PB];
|
|
affine_reference_y[0] += (s16)io_registers[REG_BG2PD];
|
|
affine_reference_x[1] += (s16)io_registers[REG_BG3PB];
|
|
affine_reference_y[1] += (s16)io_registers[REG_BG3PD];
|
|
}
|
|
|
|
#define video_savestate_builder(type) \
|
|
void video_##type##_savestate(void) \
|
|
{ \
|
|
state_mem_##type##_array(affine_reference_x); \
|
|
state_mem_##type##_array(affine_reference_y); \
|
|
}
|
|
|
|
video_savestate_builder(read)
|
|
video_savestate_builder(write)
|
|
|
|
|