/*
- * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
return srcSliceH;
}
+static void gbr24ptopacked24(const uint8_t* src[], int srcStride[], uint8_t* dst, int dstStride, int srcSliceH, int width)
+{
+ int x, h, i;
+ for (h = 0; h < srcSliceH; h++) {
+ uint8_t *dest = dst + dstStride * h;
+ for (x = 0; x < width; x++) {
+ *dest++ = src[0][x];
+ *dest++ = src[1][x];
+ *dest++ = src[2][x];
+ }
+
+ for (i = 0; i < 3; i++)
+ src[i] += srcStride[i];
+ }
+}
+
+static void gbr24ptopacked32(const uint8_t* src[], int srcStride[], uint8_t* dst, int dstStride, int srcSliceH, int alpha_first, int width)
+{
+ int x, h, i;
+ for (h = 0; h < srcSliceH; h++) {
+ uint8_t *dest = dst + dstStride * h;
+
+ if (alpha_first) {
+ for (x = 0; x < width; x++) {
+ *dest++ = 0xff;
+ *dest++ = src[0][x];
+ *dest++ = src[1][x];
+ *dest++ = src[2][x];
+ }
+ } else {
+ for (x = 0; x < width; x++) {
+ *dest++ = src[0][x];
+ *dest++ = src[1][x];
+ *dest++ = src[2][x];
+ *dest++ = 0xff;
+ }
+ }
+
+ for (i = 0; i < 3; i++)
+ src[i] += srcStride[i];
+ }
+}
+
+static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dst[], int dstStride[])
+{
+ int alpha_first = 0;
+ if (c->srcFormat != PIX_FMT_GBR24P) {
+ av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
+ av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
+ return srcSliceH;
+ }
+
+ switch (c->dstFormat) {
+ case PIX_FMT_BGR24:
+ gbr24ptopacked24((const uint8_t* []) {src[1], src[0], src[2]}, (int []) {srcStride[1], srcStride[0], srcStride[2]},
+ dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, c->srcW);
+ break;
+
+ case PIX_FMT_RGB24:
+ gbr24ptopacked24((const uint8_t* []) {src[2], src[0], src[1]}, (int []) {srcStride[2], srcStride[0], srcStride[1]},
+ dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, c->srcW);
+ break;
+
+ case PIX_FMT_ARGB:
+ alpha_first = 1;
+ case PIX_FMT_RGBA:
+ gbr24ptopacked32((const uint8_t* []) {src[2], src[0], src[1]}, (int []) {srcStride[2], srcStride[0], srcStride[1]},
+ dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, alpha_first, c->srcW);
+ break;
+
+ case PIX_FMT_ABGR:
+ alpha_first = 1;
+ case PIX_FMT_BGRA:
+ gbr24ptopacked32((const uint8_t* []) {src[1], src[0], src[2]}, (int []) {srcStride[1], srcStride[0], srcStride[2]},
+ dst[0] + srcSliceY * dstStride[0], dstStride[0], srcSliceH, alpha_first, c->srcW);
+ break;
+
+ default:
+ av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
+ av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
+ }
+
+ return srcSliceH;
+}
+
#define isRGBA32(x) ( \
(x) == PIX_FMT_ARGB \
|| (x) == PIX_FMT_RGBA \
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
c->swScale= rgbToRgbWrapper;
- if ((usePal(srcFormat) && (
- dstFormat == PIX_FMT_RGB32 ||
- dstFormat == PIX_FMT_RGB32_1 ||
- dstFormat == PIX_FMT_RGB24 ||
- dstFormat == PIX_FMT_BGR32 ||
- dstFormat == PIX_FMT_BGR32_1 ||
- dstFormat == PIX_FMT_BGR24)))
+#define isByteRGB(f) (\
+ f == PIX_FMT_RGB32 ||\
+ f == PIX_FMT_RGB32_1 ||\
+ f == PIX_FMT_RGB24 ||\
+ f == PIX_FMT_BGR32 ||\
+ f == PIX_FMT_BGR32_1 ||\
+ f == PIX_FMT_BGR24)
+
+ if (isAnyRGB(srcFormat) && isPlanar(srcFormat) && isByteRGB(dstFormat))
+ c->swScale= planarRgbToRgbWrapper;
+
+ if (usePal(srcFormat) && isByteRGB(dstFormat))
c->swScale= palToRgbWrapper;
if (srcFormat == PIX_FMT_YUV422P) {
{
if(!isALPHA(format))
src[3]=NULL;
- if(!isPlanar(format)) {
+ if (!isPlanar(format)) {
src[3]=src[2]=NULL;
if (!usePal(format))
}
}
-static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,
+static int check_image_pointers(const uint8_t * const data[4], enum PixelFormat pix_fmt,
const int linesizes[4])
{
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
* swscale wrapper, so we don't need to export the SwsContext.
* Assumes planar YUV to be in YUV order instead of YVU.
*/
-int sws_scale(struct SwsContext *c, const uint8_t* const srcSlice[],
+int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t* const srcSlice[],
const int srcStride[], int srcSliceY, int srcSliceH,
uint8_t* const dst[], const int dstStride[])
{
av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
return 0;
}
- if (!check_image_pointers(dst, c->dstFormat, dstStride)) {
+ if (!check_image_pointers((const uint8_t* const*)dst, c->dstFormat, dstStride)) {
av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
return 0;
}
int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
reset_ptr(src2, c->srcFormat);
- reset_ptr((const uint8_t**)dst2, c->dstFormat);
+ reset_ptr((void*)dst2, c->dstFormat);
/* reset slice direction at end of frame */
if (srcSliceY + srcSliceH == c->srcH)
dst2[3] += ( c->dstH -1)*dstStride[3];
reset_ptr(src2, c->srcFormat);
- reset_ptr((const uint8_t**)dst2, c->dstFormat);
+ reset_ptr((void*)dst2, c->dstFormat);
/* reset slice direction at end of frame */
if (!srcSliceY)