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main: Cosmetic changes for Texture Buffers.

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Adds a useful comment and some whitespace. Fixes an error message.

v2: Review from Anuj Phogat
   - Split rebase of Tex[ture]Buffer[Range]

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
This commit is contained in:
Laura Ekstrand 2015-03-04 14:34:27 -08:00
parent 6b78a1fb89
commit 0f6372946b
1 changed files with 9 additions and 2 deletions
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11
src/mesa/main/teximage.c
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@ -5354,6 +5354,14 @@ _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
buffer);
return;
} else {
/* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
* Textures (PDF page 254):
* "If buffer is zero, then any buffer object attached to the buffer
* texture is detached, the values offset and size are ignored and
* the state for offset and size for the buffer texture are reset to
* zero."
*/
offset = 0;
size = 0;
}
@ -5382,8 +5390,7 @@ _mesa_TextureBuffer(GLuint texture, GLenum internalFormat, GLuint buffer)
bufObj = NULL;
/* Get the texture object by Name. */
texObj = _mesa_lookup_texture_err(ctx, texture,
"glTextureBuffer(texture)");
texObj = _mesa_lookup_texture_err(ctx, texture, "glTextureBuffer");
if (!texObj)
return;