camera selection menu
This commit is contained in:
lif
parent
3e6bf957f7
commit
943db8cf5e
1 changed files with 152 additions and 63 deletions
215
main.c
215
main.c
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@ -1,7 +1,8 @@
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#include "SDL3/SDL_camera.h"
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#define SDL_MAIN_USE_CALLBACKS 1
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#include "SDL3/SDL_blendmode.h"
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#include "SDL3/SDL_camera.h"
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#include "SDL3/SDL_error.h"
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#include "SDL3/SDL_events.h"
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#include "SDL3/SDL_init.h"
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#include "SDL3/SDL_keycode.h"
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#include "SDL3/SDL_log.h"
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@ -17,7 +18,8 @@
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#include "mgba/core/core.h"
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#include "mgba/core/interface.h"
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#include "mgba/feature/commandline.h"
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//#include "mgba-util/image.h"
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#include <stdio.h>
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#define NUM_CHANNELS 3
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#define FRAMESKIP_LIMIT 20
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@ -132,14 +134,156 @@ void myRequestImageBlue(struct mImageSource* self, const void** buf, size_t* str
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struct mImageSource gb_img_src[3];
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SDL_AppResult SDL_AppInit(void** appstate, int argc, char *argv[]) {
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bool SelectCamera(SDL_Renderer* renderer) {
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SDL_Event event;
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int devcount = 0;
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int cam_idx = 0, spec_idx = 0;
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while (camera == NULL) {
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if (cam_idx >= devcount) {
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cam_idx = 0;
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} else if (cam_idx < 0) {
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cam_idx = devcount - 1;
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}
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SDL_CameraID *devices = SDL_GetCameras(&devcount);
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if (!devices) {
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SDL_Log("SDL_GetCameras failed: %s", SDL_GetError());
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return false;
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}
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if (devcount == 0) {
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SDL_free(devices);
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
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SDL_RenderClear(renderer);
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SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
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SDL_RenderDebugText(renderer, 4, 4, "connect a camera");
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SDL_RenderPresent(renderer);
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if (!SDL_WaitEvent(&event)) {
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SDL_Log("Error waiting for event: %s", SDL_GetError());
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return false;
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}
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if (event.type == SDL_EVENT_QUIT) {
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SDL_Log("Quit!");
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return false;
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}
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continue;
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}
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const SDL_CameraID device = devices[cam_idx];
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const char *name = SDL_GetCameraName(device);
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const SDL_CameraPosition position = SDL_GetCameraPosition(device);
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const char *posstr = "";
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char snprintfbuf[20];
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int formats_len = 0;
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SDL_CameraSpec** formats = SDL_GetCameraSupportedFormats(device, &formats_len);
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if (spec_idx >= formats_len) {
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spec_idx = 0;
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} else if (spec_idx < 0) {
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spec_idx = formats_len - 1;
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}
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SDL_CameraSpec* format = formats[spec_idx];
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const char* pixfmt_name = SDL_GetPixelFormatName(format->format);
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if (strncmp("SDL_PIXELFORMAT_", pixfmt_name, 16) == 0) {
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pixfmt_name += 16;
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}
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if (position == SDL_CAMERA_POSITION_FRONT_FACING) {
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front_camera = device;
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posstr = "[frontfacing]";
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} else if (position == SDL_CAMERA_POSITION_BACK_FACING) {
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back_camera = device;
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posstr = "[backfacing]";
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}
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
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SDL_RenderClear(renderer);
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SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
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SDL_RenderDebugText(renderer, 4, 4, "camera: (up/down)");
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snprintf(snprintfbuf, sizeof(snprintfbuf), "%d. %s", cam_idx, posstr);
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SDL_RenderDebugText(renderer, 8, 16, snprintfbuf);
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SDL_RenderDebugText(renderer, 4, 28, name);
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SDL_free((void*)name);
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SDL_RenderDebugText(renderer, 4, 52, "mode: (left/right)");
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snprintf(
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snprintfbuf,
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sizeof(snprintfbuf),
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"%d.",
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spec_idx
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);
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SDL_RenderDebugText(renderer, 8, 64, snprintfbuf);
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snprintf(
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snprintfbuf,
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sizeof(snprintfbuf),
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"%dx%d",
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format->width,
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format->height
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);
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SDL_RenderDebugText(renderer, 4, 76, snprintfbuf);
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snprintf(
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snprintfbuf,
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sizeof(snprintfbuf),
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"%.1f Hz",
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((float)format->framerate_numerator / (float)format->framerate_denominator)
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);
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SDL_RenderDebugText(renderer, 4, 88, snprintfbuf);
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SDL_RenderDebugText(renderer, 4, 100, pixfmt_name);
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SDL_RenderDebugText(renderer, 4, 124, "confirm: (enter)");
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if (!SDL_WaitEvent(&event)) {
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SDL_Log("Error waiting for event: %s", SDL_GetError());
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return false;
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}
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switch (event.type) {
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case SDL_EVENT_QUIT:
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SDL_Log("Quit!");
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return false;
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case SDL_EVENT_KEY_DOWN:
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switch (event.key.key) {
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case SDLK_UP: cam_idx -= 1; break;
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case SDLK_DOWN: cam_idx += 1; break;
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case SDLK_LEFT: spec_idx -= 1; break;
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case SDLK_RIGHT: spec_idx += 1; break;
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case SDLK_RETURN:
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camera = SDL_OpenCamera(device, format);
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break;
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default: break;
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}
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break;
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default: break;
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}
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SDL_free(formats);
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SDL_free(devices);
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SDL_RenderPresent(renderer);
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}
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return true;
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}
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SDL_AppResult SDL_AppInit(void** appstate, int argc, char *argv[]) {
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int i;
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unsigned w, h;
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SDL_CameraID *devices;
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SDL_CameraID devid;
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struct mArguments args;
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bool parsed = mArgumentsParse(&args, argc, argv, NULL, 0);
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@ -208,62 +352,7 @@ SDL_AppResult SDL_AppInit(void** appstate, int argc, char *argv[]) {
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SDL_SetLogPriorities(SDL_LOG_PRIORITY_VERBOSE);
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devices = SDL_GetCameras(&devcount);
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if (!devices) {
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SDL_Log("SDL_GetCameras failed: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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}
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SDL_Log("Saw %d camera devices.", devcount);
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for (i = 0; i < devcount; i++) {
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const SDL_CameraID device = devices[i];
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const char *name = SDL_GetCameraName(device);
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const SDL_CameraPosition position = SDL_GetCameraPosition(device);
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const char *posstr = "";
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int j, formats_len = 0;
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SDL_CameraSpec** formats = SDL_GetCameraSupportedFormats(device, &formats_len);
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if (position == SDL_CAMERA_POSITION_FRONT_FACING) {
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front_camera = device;
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posstr = "[front-facing] ";
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} else if (position == SDL_CAMERA_POSITION_BACK_FACING) {
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back_camera = device;
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posstr = "[back-facing] ";
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}
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SDL_Log(" - %sCamera #%d: %s", posstr, i, name);
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SDL_free((void*)name);
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for (j = 0; j < formats_len; j++) {
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SDL_CameraSpec* fmt = formats[j];
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SDL_Log(" - Format %d: %s %dx%d @ %d/%d",
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j,
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SDL_GetPixelFormatName(fmt->format),
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fmt->width,
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fmt->height,
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fmt->framerate_numerator,
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fmt->framerate_denominator
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);
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spec = *fmt;
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}
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SDL_free(formats);
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}
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/* HACK: no front-facing? just use hardcoded index til we have selection menu. */
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devid = front_camera ? front_camera : devices[0];
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SDL_free(devices);
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if (!devid) {
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SDL_Log("No cameras available?");
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return SDL_APP_FAILURE;
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}
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spec.format = SDL_PIXELFORMAT_XBGR1555;
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//spec.width = 320;
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//spec.height = 240;
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spec.framerate_numerator = 30;
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spec.framerate_denominator = 1;
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camera = SDL_OpenCamera(devid, &spec);
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if (!camera) {
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if (!SelectCamera(renderer)) {
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SDL_Log("Failed to open camera device: %s", SDL_GetError());
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return SDL_APP_FAILURE;
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}
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@ -444,7 +533,7 @@ SDL_AppResult SDL_AppIterate(void* appstate) {
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}
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SDL_ReleaseCameraFrame(camera, frame);
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SDL_SetSurfaceColorMod(scaled, 255, 0, 0);
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SDL_BlitSurface(scaled, NULL, filtered[0], NULL);
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SDL_SetSurfaceColorMod(scaled, 0, 255, 0);
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