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| author | Brian Paul <brianp@vmware.com> | 2016-02-19 08:51:51 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2016-02-19 08:51:51 -0700 |
| commit | 0eb7b5c2a3f17d64e85247c1f4907ce20bc57a73 (patch) | |
| tree | 7904463dd0f33ac1a4afaf347703c3689ac2be46 /src/mesa/main/image.c | |
| parent | 8a2a1a6bd6655fd06698ab102289a19e018f314b (diff) | |
| download | external_mesa3d-0eb7b5c2a3f17d64e85247c1f4907ce20bc57a73.zip external_mesa3d-0eb7b5c2a3f17d64e85247c1f4907ce20bc57a73.tar.gz external_mesa3d-0eb7b5c2a3f17d64e85247c1f4907ce20bc57a73.tar.bz2 | |
mesa: small optimization of _mesa_expand_bitmap()
Avoid a per-pixel multiply.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/mesa/main/image.c')
| -rw-r--r-- | src/mesa/main/image.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 99f253c..4d6ab6f 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -408,9 +408,7 @@ _mesa_expand_bitmap(GLsizei width, GLsizei height, const GLint srcStride = _mesa_image_row_stride(unpack, width, GL_COLOR_INDEX, GL_BITMAP); GLint row, col; - -#define SET_PIXEL(COL, ROW) \ - destBuffer[(ROW) * destStride + (COL)] = onValue; + GLubyte *dstRow = destBuffer; for (row = 0; row < height; row++) { const GLubyte *src = srcRow; @@ -421,7 +419,7 @@ _mesa_expand_bitmap(GLsizei width, GLsizei height, for (col = 0; col < width; col++) { if (*src & mask) { - SET_PIXEL(col, row); + dstRow[col] = onValue; } if (mask == 128U) { @@ -443,7 +441,7 @@ _mesa_expand_bitmap(GLsizei width, GLsizei height, for (col = 0; col < width; col++) { if (*src & mask) { - SET_PIXEL(col, row); + dstRow[col] = onValue; } if (mask == 1U) { @@ -461,9 +459,8 @@ _mesa_expand_bitmap(GLsizei width, GLsizei height, } srcRow += srcStride; + dstRow += destStride; } /* row */ - -#undef SET_PIXEL } |