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authorBrian Paul <[email protected]>2011-07-31 21:00:55 -0700
committerEric Anholt <[email protected]>2011-09-27 12:12:07 -0700
commit177110ae3261e6ba91a40ed1c495a865edbe9394 (patch)
tree85bad4b074b4c4492c813002b0457893e5b6c6e2
parent8df7ca71125ee0ad74260378ff7e185dcf66f3bc (diff)
mesa: Update comments/assertions about buffer mapping for glGetTexImage().
This code is about to stop needing ->Data and using MapTextureImage(). Tested-by: Brian Paul <[email protected]>
-rw-r--r--src/mesa/main/texgetimage.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c
index 4d583094312..a5e499a531e 100644
--- a/src/mesa/main/texgetimage.c
+++ b/src/mesa/main/texgetimage.c
@@ -409,7 +409,8 @@ get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type, GLvoid *pixel
/**
* This is the software fallback for Driver.GetTexImage().
* All error checking will have been done before this routine is called.
- * The texture image must be mapped.
+ * We'll call ctx->Driver.MapTextureImage() to access the data, then
+ * unmap with ctx->Driver.UnmapTextureImage().
*/
void
_mesa_get_teximage(struct gl_context *ctx, GLenum target, GLint level,
@@ -419,9 +420,6 @@ _mesa_get_teximage(struct gl_context *ctx, GLenum target, GLint level,
{
GLuint dimensions;
- /* If we get here, the texture image should be mapped */
- assert(texImage->Data);
-
switch (target) {
case GL_TEXTURE_1D:
dimensions = 1;
@@ -433,6 +431,7 @@ _mesa_get_teximage(struct gl_context *ctx, GLenum target, GLint level,
dimensions = 2;
}
+ /* map dest buffer, if PBO */
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* Packing texture image into a PBO.
* Map the (potentially) VRAM-based buffer into our process space so