From 9bab714c61fa1eb22c6723af81caf83fffe549f4 Mon Sep 17 00:00:00 2001
From: Philipp Zabel
Date: Thu, 19 Jan 2017 15:05:40 +0100
Subject: [PATCH] mesa: update external textures when (re-)binding
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To comply with the requirement from the GL_OES_EGL_image_external
extension that a call to glBindTexture guarantees that all further
sampling will return values that correspond to the values in the
external texture at or after the time that glBindTexture was called,
do not bail out early from mesa_BindTextures if the target is
external.
This will later allow the state tracker to instruct the pipe driver
to invalidate internal resources derived from the external texture.
Signed-off-by: Philipp Zabel
Reviewed-by: Marek Olšák
Signed-off-by: Lucas Stach
---
src/mesa/main/texobj.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index e5b70701c44..25b959d1814 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -1619,9 +1619,10 @@ bind_texture(struct gl_context *ctx,
assert(targetIndex < NUM_TEXTURE_TARGETS);
/* Check if this texture is only used by this context and is already bound.
- * If so, just return.
+ * If so, just return. For GL_OES_image_external, rebinding the texture
+ * always must invalidate cached resources.
*/
- {
+ if (targetIndex != TEXTURE_EXTERNAL_INDEX) {
bool early_out;
mtx_lock(&ctx->Shared->Mutex);
early_out = ((ctx->Shared->RefCount == 1)
--
2.30.2