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Removed Blit2101010toN and BlitNto2101010

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10-bit RGB formats are typically used with the PQ colorspace, which is handled by SDL_Blit_Slow.

Fixes https://github.com/libsdl-org/SDL/issues/11271
This commit is contained in:
Sam Lantinga
2024-10-19 10:06:50 -07:00
parent 5c1ccaefae
commit ffb1d9e4b4
1 changed files with 5 additions and 71 deletions
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76
src/video/SDL_blit_N.c
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@@ -2530,68 +2530,6 @@ static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info)
} }
} }
// Special optimized blit for ARGB 2-10-10-10 --> RGBA
static void Blit2101010toN(SDL_BlitInfo *info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
const SDL_PixelFormatDetails *dstfmt = info->dst_fmt;
int dstbpp = dstfmt->bytes_per_pixel;
Uint32 Pixel;
unsigned sR, sG, sB, sA;
while (height--) {
/* *INDENT-OFF* */ // clang-format off
DUFFS_LOOP(
{
Pixel = *(Uint32 *)src;
RGBA_FROM_ARGB2101010(Pixel, sR, sG, sB, sA);
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
dst += dstbpp;
src += 4;
},
width);
/* *INDENT-ON* */ // clang-format on
src += srcskip;
dst += dstskip;
}
}
// Special optimized blit for RGBA --> ARGB 2-10-10-10
static void BlitNto2101010(SDL_BlitInfo *info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
const SDL_PixelFormatDetails *srcfmt = info->src_fmt;
int srcbpp = srcfmt->bytes_per_pixel;
Uint32 Pixel;
unsigned sR, sG, sB, sA;
while (height--) {
/* *INDENT-OFF* */ // clang-format off
DUFFS_LOOP(
{
DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
ARGB2101010_FROM_RGBA(Pixel, sR, sG, sB, sA);
*(Uint32 *)dst = Pixel;
dst += 4;
src += srcbpp;
},
width);
/* *INDENT-ON* */ // clang-format on
src += srcskip;
dst += dstskip;
}
}
// Blit_3or4_to_3or4__same_rgb: 3 or 4 bpp, same RGB triplet // Blit_3or4_to_3or4__same_rgb: 3 or 4 bpp, same RGB triplet
static void Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo *info) static void Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo *info)
{ {
@@ -2946,15 +2884,11 @@ SDL_BlitFunc SDL_CalculateBlitN(SDL_Surface *surface)
} }
if (blitfun == BlitNtoN) { // default C fallback catch-all. Slow! if (blitfun == BlitNtoN) { // default C fallback catch-all. Slow!
if (srcfmt->format == SDL_PIXELFORMAT_ARGB2101010) { if (srcfmt->bytes_per_pixel == 4 &&
blitfun = Blit2101010toN; dstfmt->bytes_per_pixel == 4 &&
} else if (dstfmt->format == SDL_PIXELFORMAT_ARGB2101010) { srcfmt->Rmask == dstfmt->Rmask &&
blitfun = BlitNto2101010; srcfmt->Gmask == dstfmt->Gmask &&
} else if (srcfmt->bytes_per_pixel == 4 && srcfmt->Bmask == dstfmt->Bmask) {
dstfmt->bytes_per_pixel == 4 &&
srcfmt->Rmask == dstfmt->Rmask &&
srcfmt->Gmask == dstfmt->Gmask &&
srcfmt->Bmask == dstfmt->Bmask) {
if (a_need == COPY_ALPHA) { if (a_need == COPY_ALPHA) {
if (srcfmt->Amask == dstfmt->Amask) { if (srcfmt->Amask == dstfmt->Amask) {
// Fastpath C fallback: 32bit RGBA<->RGBA blit with matching RGBA // Fastpath C fallback: 32bit RGBA<->RGBA blit with matching RGBA