C++ (Cpp) PNGU_GetImageProperties示例

示例#1

文件： main.cpp 项目： brettster123/customizemii

u8 * GetImageData(void) {

	u8 * data = NULL;

	int ret;

	if (CONF_GetAspectRatio()) {
        ctx = PNGU_SelectImageFromBuffer(background169_png);
        if (!ctx)
            return NULL;
    } else {
        ctx = PNGU_SelectImageFromBuffer(background_png);
        if (!ctx)
            return NULL;
    }

	ret = PNGU_GetImageProperties(ctx, &imgProp);
	if (ret != PNGU_OK)
		return NULL;

    int len = imgProp.imgWidth * imgProp.imgHeight * 4;

    if(len%32) len += (32-len%32);
    data = (u8 *)memalign (32, len);
    ret = PNGU_DecodeTo4x4RGBA8 (ctx, imgProp.imgWidth, imgProp.imgHeight, data, 255);
	DCFlushRange(data, len);

	PNGU_ReleaseImageContext(ctx);

    return data;
}

示例#2

文件： gui.c 项目： DarkMatterCore/homebrewfilter

s32 __Gui_DrawPng(void *img, u32 x, u32 y)
{
	IMGCTX   ctx = NULL;
	PNGUPROP imgProp;

	s32 ret;

	/* Select PNG data */
	ctx = PNGU_SelectImageFromBuffer(img);
	if (!ctx) {
		ret = -1;
		goto out;
	}

	/* Get image properties */
	ret = PNGU_GetImageProperties(ctx, &imgProp);
	if (ret != PNGU_OK) {
		ret = -1;
		goto out;
	}

	/* Draw image */
	Video_DrawPng(ctx, imgProp, x, y);

	/* Success */
	ret = 0;

out:
	/* Free memory */
	if (ctx)
		PNGU_ReleaseImageContext(ctx);

	return ret;
}

示例#3

文件： gui.c 项目： Aurelio92/sd-usb-loader

s32 __Gui_GetPngDimensions(void *img, u32 *w, u32 *h)
{
	IMGCTX   ctx = NULL;
	PNGUPROP imgProp;

	s32 ret;

	/* Select PNG data */
	ctx = PNGU_SelectImageFromBuffer(img);
	if (!ctx) {
		ret = -1;
		goto out;
	}

	/* Get image properties */
	ret = PNGU_GetImageProperties(ctx, &imgProp);
	if (ret != PNGU_OK) {
		ret = -1;
		goto out;
	}

	/* Set image width and height */
	*w = imgProp.imgWidth;
	*h = imgProp.imgHeight;

	/* Success */
	ret = 0;

out:
	/* Free memory */
	if (ctx)
		PNGU_ReleaseImageContext(ctx);

	return ret;
}

示例#4

文件： background_image.c 项目： djskual/savegame-manager-gx

u8 * GetImageData(bool dark)
{
    PNGUPROP imgProp;
    IMGCTX ctx;
	u8 * data = NULL;
	int ret;

	ctx = PNGU_SelectImageFromBuffer(dark ? background_dark_png : background_png);
	if (!ctx)
		return NULL;

	ret = PNGU_GetImageProperties(ctx, &imgProp);
	if (ret != PNGU_OK)
		return NULL;

    imagewidth = imgProp.imgWidth;
    imageheight = imgProp.imgHeight;

    int len = ((((imgProp.imgWidth+3)>>2)*((imgProp.imgHeight+3)>>2)*32*2) + 31) & ~31;

    data = (u8 *)memalign (32, len);

    ret = PNGU_DecodeTo4x4RGBA8 (ctx, imgProp.imgWidth, imgProp.imgHeight, data, 255);

	DCFlushRange(data, len);

	PNGU_ReleaseImageContext(ctx);

    return data;
}

示例#5

文件： image.c 项目： AveryEvans/d2x-cios-installer

IMGCTX getPngImageRessources(const void *imgData,PNGUPROP *imgProperties) {
IMGCTX varout;
    if ((varout=PNGU_SelectImageFromBuffer(imgData))) {
        if (PNGU_GetImageProperties(varout,imgProperties)!=PNGU_OK) {
            PNGU_ReleaseImageContext(varout);
            varout=NULL;
        }
	}
    return varout;
}

示例#6

文件： main.cpp 项目： djskual/savegame-manager-gx

u8 * GetImageData(void)
{
	u8 * data = NULL;

	int ret;

	if (CONF_GetAspectRatio()) {
		switch (CONF_GetLanguage()) {
			case CONF_LANG_FRENCH:
				ctx = PNGU_SelectImageFromBuffer(bk169fr_png);
				break;
			case CONF_LANG_JAPANESE:
				ctx = PNGU_SelectImageFromBuffer(bk169jp_png);
				break;
			case CONF_LANG_SPANISH:
				ctx = PNGU_SelectImageFromBuffer(bk169sp_png);
				break;
			case CONF_LANG_ITALIAN:
				ctx = PNGU_SelectImageFromBuffer(bk169it_png);
				break;
			case CONF_LANG_DUTCH:
				ctx = PNGU_SelectImageFromBuffer(bk169du_png);
				break;
			case CONF_LANG_GERMAN:
				ctx = PNGU_SelectImageFromBuffer(bk169ge_png);
				break;
			default:
				ctx = PNGU_SelectImageFromBuffer(bk169en_png);
				break;
		}
	} else {
		switch (CONF_GetLanguage()) {
			case CONF_LANG_FRENCH:
				ctx = PNGU_SelectImageFromBuffer(bkfr_png);
				break;
			case CONF_LANG_JAPANESE:
				ctx = PNGU_SelectImageFromBuffer(bkjp_png);
				break;
			case CONF_LANG_SPANISH:
				ctx = PNGU_SelectImageFromBuffer(bksp_png);
				break;
			case CONF_LANG_ITALIAN:
				ctx = PNGU_SelectImageFromBuffer(bkit_png);
				break;
			case CONF_LANG_DUTCH:
				ctx = PNGU_SelectImageFromBuffer(bkdu_png);
				break;
			case CONF_LANG_GERMAN:
				ctx = PNGU_SelectImageFromBuffer(bkge_png);
				break;
			default:
				ctx = PNGU_SelectImageFromBuffer(bken_png);
				break;
		}
	}
	if (!ctx)
		return NULL;

	ret = PNGU_GetImageProperties(ctx, &imgProp);
	if (ret != PNGU_OK)
		return NULL;

    int len = imgProp.imgWidth * imgProp.imgHeight * 4;

    if(len%32) len += (32-len%32);
    data = (u8 *)memalign (32, len);
    ret = PNGU_DecodeTo4x4RGBA8 (ctx, imgProp.imgWidth, imgProp.imgHeight, data, 255);
	DCFlushRange(data, len);

	PNGU_ReleaseImageContext(ctx);

    return data;
}