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Don't use _mesa_swizzle_ubyte_image if all three texture formats

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involved in _mesa_textore_argb/rgba8888 (source, base-internal,
destination) differ. _mesa_swizzle_ubyte_image knows only about two of
the formats and can't handle the case that all three are different
correctly. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=3111.
This commit is contained in:
Felix Kuehling 2005-05-16 23:01:09 +00:00
parent a33f0d3024
commit ffd97d20aa
1 changed files with 12 additions and 0 deletions
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12
src/mesa/main/texstore.c
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@ -1079,6 +1079,12 @@ _mesa_texstore_rgba8888(STORE_PARAMS)
srcType == GL_UNSIGNED_BYTE &&
dstFormat == &_mesa_texformat_rgba8888 &&
littleEndian &&
/* Three texture formats involved: srcFormat,
* baseInternalFormat and destFormat (GL_RGBA). Only two
* may differ. _mesa_swizzle_ubyte_image can't handle two
* propagations at once correctly. */
(srcFormat == baseInternalFormat ||
baseInternalFormat == GL_RGBA) &&
can_swizzle(srcFormat)) {
GLubyte dstmap[4];
@ -1252,6 +1258,12 @@ _mesa_texstore_argb8888(STORE_PARAMS)
dstFormat == &_mesa_texformat_argb8888 &&
srcType == GL_UNSIGNED_BYTE &&
littleEndian &&
/* Three texture formats involved: srcFormat,
* baseInternalFormat and destFormat (GL_RGBA). Only two
* may differ. _mesa_swizzle_ubyte_image can't handle two
* propagations at once correctly. */
(srcFormat == baseInternalFormat ||
baseInternalFormat == GL_RGBA) &&
can_swizzle(srcFormat)) {
GLubyte dstmap[4];