93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
#include <graphics.h>
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static void copyScreenTexture(uint8_t *dst, const uint8_t *src, int pitch) {
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int x, y, i;
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uint8_t color;
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int delta = pitch / 384;
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for (y = 0; y < 224; ++y) {
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for (x = 0; x < 384; x += 1) {
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color = src[(y * 384) + x];
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for (i = 0; i < delta; ++i) {
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dst[(y * pitch) + (x * delta) + i] = color;
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}
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}
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}
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}
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int gfxInit(GraphicsContext *gfx) {
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gfx->window = SDL_CreateWindow("Shrooms VB",
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SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
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1536, 896, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
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if (!gfx->window) {
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fprintf(stderr, "Error creating window: %s\n", SDL_GetError());
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return 1;
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}
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gfx->winSurface = SDL_GetWindowSurface(gfx->window);
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if (!gfx->winSurface) {
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fprintf(stderr, "Error getting surface: %s\n", SDL_GetError());
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goto cleanup_window;
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}
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gfx->renderer = SDL_GetRenderer(gfx->window);
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if (!gfx->renderer) {
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fprintf(stderr, "Error getting renderer: %s\n", SDL_GetError());
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goto cleanup_window;
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}
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gfx->leftEye = SDL_CreateTexture(gfx->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
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if (!gfx->leftEye) {
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fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
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goto cleanup_window;
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}
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SDL_SetTextureColorMod(gfx->leftEye, 0xff, 0, 0);
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gfx->rightEye = SDL_CreateTexture(gfx->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
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if (!gfx->rightEye) {
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fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
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goto cleanup_left_eye;
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}
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SDL_SetTextureColorMod(gfx->rightEye, 0, 0xc6, 0xf0);
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SDL_SetTextureBlendMode(gfx->rightEye, SDL_BLENDMODE_ADD);
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return 0;
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cleanup_left_eye:
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SDL_DestroyTexture(gfx->leftEye);
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cleanup_window:
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SDL_DestroyWindow(gfx->window);
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return 1;
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}
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void gfxDestroy(GraphicsContext *gfx) {
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SDL_DestroyTexture(gfx->rightEye);
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SDL_DestroyTexture(gfx->leftEye);
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SDL_DestroyWindow(gfx->window);
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}
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static void gfxUpdateEye(SDL_Texture *eye, const uint8_t *bytes) {
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void *target;
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int pitch;
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if (SDL_LockTexture(eye, NULL, &target, &pitch)) {
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fprintf(stderr, "Error locking buffer for eye: %s\n", SDL_GetError());
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return;
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}
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copyScreenTexture(target, bytes, pitch);
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SDL_UnlockTexture(eye);
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}
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void gfxUpdateLeftEye(GraphicsContext *gfx, const uint8_t *bytes) {
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gfxUpdateEye(gfx->leftEye, bytes);
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}
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void gfxUpdateRightEye(GraphicsContext *gfx, const uint8_t *bytes) {
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gfxUpdateEye(gfx->rightEye, bytes);
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}
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void gfxRender(GraphicsContext *gfx) {
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SDL_RenderClear(gfx->renderer);
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SDL_RenderCopy(gfx->renderer, gfx->leftEye, NULL, NULL);
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SDL_RenderCopy(gfx->renderer, gfx->rightEye, NULL, NULL);
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SDL_RenderPresent(gfx->renderer);
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}
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