Exemplos de PNGWriteHeader em C++ (Cpp)

Exemplo n.º 1

Arquivo: serialize.c Projeto: Carlosamouco/mgba

static bool _savePNGState(struct GBA* gba, struct VFile* vf) {
	unsigned stride;
	const void* pixels = 0;
	gba->video.renderer->getPixels(gba->video.renderer, &stride, &pixels);
	if (!pixels) {
		return false;
	}

	struct GBASerializedState* state = GBAAllocateState();
	if (!state) {
		return false;
	}
	GBASerialize(gba, state);
	uLongf len = compressBound(sizeof(*state));
	void* buffer = malloc(len);
	if (!buffer) {
		GBADeallocateState(state);
		return false;
	}
	compress(buffer, &len, (const Bytef*) state, sizeof(*state));
	GBADeallocateState(state);

	png_structp png = PNGWriteOpen(vf);
	png_infop info = PNGWriteHeader(png, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
	if (!png || !info) {
		PNGWriteClose(png, info);
		free(buffer);
		return false;
	}
	PNGWritePixels(png, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, stride, pixels);
	PNGWriteCustomChunk(png, "gbAs", len, buffer);
	PNGWriteClose(png, info);
	free(buffer);
	return true;
}

Exemplo n.º 2

Arquivo: core.c Projeto: Bizcocho/mgba

void mCoreTakeScreenshot(struct mCore* core) {
#ifdef USE_PNG
	size_t stride;
	color_t* pixels = 0;
	unsigned width, height;
	core->desiredVideoDimensions(core, &width, &height);
	struct VFile* vf = VDirFindNextAvailable(core->dirs.screenshot, core->dirs.baseName, "-", ".png", O_CREAT | O_TRUNC | O_WRONLY);
	bool success = false;
	if (vf) {
		core->getVideoBuffer(core, &pixels, &stride);
		png_structp png = PNGWriteOpen(vf);
		png_infop info = PNGWriteHeader(png, width, height);
		success = PNGWritePixels(png, width, height, stride, pixels);
		PNGWriteClose(png, info);
		vf->close(vf);
	}
	if (success) {
		mLOG(STATUS, INFO, "Screenshot saved");
		return;
	}
#else
	UNUSED(core);
#endif
	mLOG(STATUS, WARN, "Failed to take screenshot");
}

Exemplo n.º 3

Arquivo: core.c Projeto: NunaticAlumina/mgba

void mCoreTakeScreenshot(struct mCore* core) {
#ifdef USE_PNG
	size_t stride;
	const void* pixels = 0;
	unsigned width, height;
	core->desiredVideoDimensions(core, &width, &height);
	struct VFile* vf;
#ifndef PSP2
	vf = VDirFindNextAvailable(core->dirs.screenshot, core->dirs.baseName, "-", ".png", O_CREAT | O_TRUNC | O_WRONLY);
#else
	vf = VFileMemChunk(0, 0);
#endif
	bool success = false;
	if (vf) {
		core->getPixels(core, &pixels, &stride);
		png_structp png = PNGWriteOpen(vf);
		png_infop info = PNGWriteHeader(png, width, height);
		success = PNGWritePixels(png, width, height, stride, pixels);
		PNGWriteClose(png, info);
#ifdef PSP2
		void* data = vf->map(vf, 0, 0);
		PhotoExportParam param = {
			0,
			NULL,
			NULL,
			NULL,
			{ 0 }
		};
		scePhotoExportFromData(data, vf->size(vf), &param, NULL, NULL, NULL, NULL, 0);
#endif
		vf->close(vf);
	}
	if (success) {
		mLOG(STATUS, INFO, "Screenshot saved");
		return;
	}
#else
	UNUSED(core);
#endif
	mLOG(STATUS, WARN, "Failed to take screenshot");
}

Exemplo n.º 4

Arquivo: serialize.c Projeto: Carlosamouco/mgba

void GBATakeScreenshot(struct GBA* gba, struct VDir* dir) {
#ifdef USE_PNG
	unsigned stride;
	const void* pixels = 0;
	struct VFile* vf = VDirOptionalOpenIncrementFile(dir, gba->activeFile, "screenshot", "-", ".png", O_CREAT | O_TRUNC | O_WRONLY);
	bool success = false;
	if (vf) {
		gba->video.renderer->getPixels(gba->video.renderer, &stride, &pixels);
		png_structp png = PNGWriteOpen(vf);
		png_infop info = PNGWriteHeader(png, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
		success = PNGWritePixels(png, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, stride, pixels);
		PNGWriteClose(png, info);
		vf->close(vf);
	}
	if (success) {
		GBALog(gba, GBA_LOG_STATUS, "Screenshot saved");
		return;
	}
#endif
	GBALog(gba, GBA_LOG_STATUS, "Failed to take screenshot");
}