diff options
Diffstat (limited to 'mesalib/src/mesa/main/texcompress.c')
| -rw-r--r-- | mesalib/src/mesa/main/texcompress.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c index 44590ea96..c376b970e 100644 --- a/mesalib/src/mesa/main/texcompress.c +++ b/mesalib/src/mesa/main/texcompress.c @@ -465,6 +465,8 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img, /** * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image. + * \param srcRowStride stride in bytes between rows of blocks in the + * compressed source image. */ void _mesa_decompress_image(gl_format format, GLuint width, GLuint height, @@ -475,11 +477,19 @@ _mesa_decompress_image(gl_format format, GLuint width, GLuint height, GLint i, GLint j, GLint k, GLfloat *texel); struct swrast_texture_image texImage; /* dummy teximage */ GLuint i, j; + GLuint bytes, bw, bh; + + bytes = _mesa_get_format_bytes(format); + _mesa_get_format_block_size(format, &bw, &bh); /* setup dummy texture image info */ memset(&texImage, 0, sizeof(texImage)); texImage.Map = (void *) src; - texImage.RowStride = srcRowStride; + + /* XXX This line is a bit of a hack to adapt to the row stride + * convention used by the texture decompression functions. + */ + texImage.RowStride = srcRowStride * bh / bytes; switch (format) { /* DXT formats */ |