diff options
| author | Brian Paul <[email protected]> | 2011-11-17 16:03:35 -0700 |
|---|---|---|
| committer | José Fonseca <[email protected]> | 2012-02-22 11:56:20 +0000 |
| commit | 0df14f9a55383641a9097900272a35ae1cfda4cb (patch) | |
| tree | 333b904a46f6338418b1346e1927f6acc1f210b4 /src/mesa/main | |
| parent | 3dd7b53178cb085a1ff3d87844fa51487f8892fc (diff) | |
mesa: add special case in texstore.c for GL_LUMINANCE_ALPHA src image
About a 10% improvement over the swizzle-copy path.
Reviewed-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/texstore.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 8c51a948ede..e8190c3922c 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -1350,6 +1350,32 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS) } else if (!ctx->_ImageTransferState && !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_ARGB8888 && + srcFormat == GL_LUMINANCE_ALPHA && + baseInternalFormat == GL_RGBA && + srcType == GL_UNSIGNED_BYTE) { + /* special case of storing LA -> ARGB8888 */ + int img, row, col; + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + for (img = 0; img < srcDepth; img++) { + const GLubyte *srcRow = (const GLubyte *) + _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, + srcHeight, srcFormat, srcType, img, 0, 0); + GLubyte *dstRow = dstSlices[img]; + for (row = 0; row < srcHeight; row++) { + GLuint *d4 = (GLuint *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLubyte l = srcRow[col * 2 + 0], a = srcRow[col * 2 + 1]; + d4[col] = PACK_COLOR_8888(a, l, l, l); + } + dstRow += dstRowStride; + srcRow += srcRowStride; + } + } + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && dstFormat == MESA_FORMAT_ARGB8888 && srcFormat == GL_RGBA && baseInternalFormat == GL_RGBA && |