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pixels: Add 10-bits-per-colour formats

pull/63/head
Andri Yngvason 2022-01-27 22:11:51 +00:00
parent fd23cb8c2f
commit 648255769a
1 changed files with 43 additions and 1 deletions
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44
src/pixels.c
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@ -33,7 +33,7 @@ void pixel32_to_cpixel(uint8_t* restrict dst,
assert(src_fmt->depth <= 32);
assert(dst_fmt->true_colour_flag);
assert(dst_fmt->bits_per_pixel <= 32);
assert(dst_fmt->depth <= 24);
assert(dst_fmt->depth <= 32);
assert(bytes_per_cpixel <= 4 && bytes_per_cpixel >= 1);
uint32_t src_red_shift = src_fmt->red_shift;
@ -152,6 +152,36 @@ void pixel32_to_cpixel(uint8_t* restrict dst,
/* clang-format off */
int rfb_pixfmt_from_fourcc(struct rfb_pixel_format *dst, uint32_t src) {
switch (src & ~DRM_FORMAT_BIG_ENDIAN) {
case DRM_FORMAT_RGBA1010102:
case DRM_FORMAT_RGBX1010102:
dst->red_shift = 22;
dst->green_shift = 12;
dst->blue_shift = 2;
goto bpp_32_10bit;
case DRM_FORMAT_BGRA1010102:
case DRM_FORMAT_BGRX1010102:
dst->red_shift = 2;
dst->green_shift = 12;
dst->blue_shift = 22;
goto bpp_32_10bit;
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_XRGB2101010:
dst->red_shift = 20;
dst->green_shift = 10;
dst->blue_shift = 0;
goto bpp_32_10bit;
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_XBGR2101010:
dst->red_shift = 0;
dst->green_shift = 10;
dst->blue_shift = 20;
bpp_32_10bit:
dst->bits_per_pixel = 32;
dst->depth = 30;
dst->red_max = 0x3ff;
dst->green_max = 0x3ff;
dst->blue_max = 0x3ff;
break;
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_RGBX8888:
dst->red_shift = 24;
@ -225,6 +255,14 @@ bpp_16:
int pixel_size_from_fourcc(uint32_t fourcc)
{
switch (fourcc & ~DRM_FORMAT_BIG_ENDIAN) {
case DRM_FORMAT_RGBA1010102:
case DRM_FORMAT_RGBX1010102:
case DRM_FORMAT_BGRA1010102:
case DRM_FORMAT_BGRX1010102:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_XBGR2101010:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_RGBX8888:
case DRM_FORMAT_BGRA8888:
@ -299,6 +337,10 @@ bool fourcc_to_pixman_fmt(pixman_format_code_t* dst, uint32_t src)
/* These are incompatible on big endian */
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
X(A,R,G,B,2,10,10,10);
X(X,R,G,B,2,10,10,10);
X(A,B,G,R,2,10,10,10);
X(X,B,G,R,2,10,10,10);
X(A,R,G,B,1,5,5,5);
X(A,B,G,R,1,5,5,5);
X(X,R,G,B,1,5,5,5);