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mesa: Fixed a texture memory leak

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The current texture for any particular texture unit is given an additional
reference in update_texture_state(); but if the context is closed before
that texture can be released (which is quite frequent in normal use, unless
a program unbinds and deletes the texture and renders without it to force
a call to update_texture_state(), the memory is lost.

This affects general Mesa; but the i965 is particularly affected because
it allocates a considerable amount of additional memory for each allocated
texture.

(cherry picked from master, commit c230767d69)
This commit is contained in:
Brian Paul 2009-05-11 09:46:56 -06:00
parent 31865904d8
commit 2223615e0a
1 changed files with 3 additions and 0 deletions
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3
src/mesa/main/texstate.c
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@ -780,6 +780,9 @@ _mesa_free_texture_data(GLcontext *ctx)
/* unreference current textures */
for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) {
/* The _Current texture could account for another reference */
_mesa_reference_texobj(&ctx->Texture.Unit[u]._Current, NULL);
for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
_mesa_reference_texobj(&ctx->Texture.Unit[u].CurrentTex[tgt], NULL);
}