From: Nicolai Hähnle <nicolai.haeh...@amd.com>
We will want to disable minmax index caching for buffers that are used in this
way.
---
src/mesa/main/mtypes.h | 1 +
src/mesa/main/transformfeedback.h | 3 +++
2 files changed, 4 insertions(+)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 5b9fce8..64004ab 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1253,6 +1253,7 @@ typedef enum {
USAGE_TEXTURE_BUFFER = 0x2,
USAGE_ATOMIC_COUNTER_BUFFER = 0x4,
USAGE_SHADER_STORAGE_BUFFER = 0x8,
+ USAGE_TRANSFORM_FEEDBACK_BUFFER = 0x10,
} gl_buffer_usage;
diff --git a/src/mesa/main/transformfeedback.h
b/src/mesa/main/transformfeedback.h
index bb9729c..eb274ad 100644
--- a/src/mesa/main/transformfeedback.h
+++ b/src/mesa/main/transformfeedback.h
@@ -145,6 +145,9 @@ _mesa_set_transform_feedback_binding(struct gl_context *ctx,
tfObj->BufferNames[index] = bufObj->Name;
tfObj->Offset[index] = offset;
tfObj->RequestedSize[index] = size;
+
+ if (bufObj != ctx->Shared->NullBufferObj)
+ bufObj->UsageHistory |= USAGE_TRANSFORM_FEEDBACK_BUFFER;
}
/*** GL_ARB_direct_state_access ***/
--
2.5.0
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