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| author | marha <marha@users.sourceforge.net> | 2011-06-14 08:14:45 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-06-14 08:14:45 +0200 |
| commit | 6b441c10eeb02569204ff50ba8c3b739037b8141 (patch) | |
| tree | f9c0dd95a41268546aeecdd31c8588c617749cd1 /mesalib/src/mesa/drivers/common/meta.c | |
| parent | 0d495843cebea4ae94a3138db2bf51da80a16391 (diff) | |
| parent | 4d74e36f359d22b50302c82a922b79ac24dd3e23 (diff) | |
| download | vcxsrv-6b441c10eeb02569204ff50ba8c3b739037b8141.tar.gz vcxsrv-6b441c10eeb02569204ff50ba8c3b739037b8141.tar.bz2 vcxsrv-6b441c10eeb02569204ff50ba8c3b739037b8141.zip | |
Merge remote-tracking branch 'origin/released'
Conflicts:
mesalib/src/mesa/SConscript
mesalib/src/mesa/drivers/common/driverfuncs.c
mesalib/src/mesa/main/texgetimage.c
mesalib/src/mesa/sources.mak
mesalib/src/mesa/swrast/s_texrender.c
mesalib/src/mesa/vbo/vbo_exec_array.c
xorg-server/xkeyboard-config/configure.in
Diffstat (limited to 'mesalib/src/mesa/drivers/common/meta.c')
| -rw-r--r-- | mesalib/src/mesa/drivers/common/meta.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c index 979926a7e..0e58aeca3 100644 --- a/mesalib/src/mesa/drivers/common/meta.c +++ b/mesalib/src/mesa/drivers/common/meta.c @@ -2691,12 +2691,26 @@ copy_tex_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, GLenum format, type; GLint bpp; void *buf; + struct gl_renderbuffer *read_rb = ctx->ReadBuffer->_ColorReadBuffer; texObj = _mesa_get_current_tex_object(ctx, target); texImage = _mesa_get_tex_image(ctx, texObj, target, level); /* Choose format/type for temporary image buffer */ format = _mesa_base_tex_format(ctx, internalFormat); + + if (format == GL_LUMINANCE && + _mesa_get_format_base_format(read_rb->Format) != GL_LUMINANCE) { + /* The glReadPixels() path will convert RGB to luminance by + * summing R+G+B. glCopyTexImage() is supposed to behave as + * glCopyPixels, which doesn't do that change, and instead + * leaves it up to glTexImage which converts RGB to luminance by + * just taking the R channel. To avoid glReadPixels() trashing + * our data, use RGBA for our temporary image. + */ + format = GL_RGBA; + } + type = get_temp_image_type(ctx, format); bpp = _mesa_bytes_per_pixel(format, type); if (bpp <= 0) { |