This is a bandaid on the problem that if some formats were not renderable
(like luminance_alpha), st/mesa fell back to some RGBA format, so basically
some non-renderable formats were actually not used at all. This is only
a problem with hardware drivers, softpipe can render to anything.
Instead, require only RGB8/RGBA8 to be renderable.
---
src/mesa/state_tracker/st_format.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_format.c
b/src/mesa/state_tracker/st_format.c
index 1ae6013..f6a44a8 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -1028,8 +1028,13 @@ gl_format
st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat,
GLenum format, GLenum type)
{
+ boolean want_renderable =
+ internalFormat == 3 || internalFormat == 4 ||
+ internalFormat == GL_RGB || internalFormat == GL_RGBA ||
+ internalFormat == GL_RGB8 || internalFormat == GL_RGBA8;
+
return st_ChooseTextureFormat_renderable(ctx, internalFormat,
- format, type, GL_TRUE);
+ format, type, want_renderable);
}
/**
--
1.7.1
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