Mesa (mesa_7_7_branch): vbo: fix missing state validation bugs
Brian Paul
brianp at kemper.freedesktop.org
Fri Jan 29 15:27:15 UTC 2010
Module: Mesa
Branch: mesa_7_7_branch
Commit: 3cba779e16935f7c3a0bfd8af48bd5e015068e96
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3cba779e16935f7c3a0bfd8af48bd5e015068e96
Author: Brian Paul <brianp at vmware.com>
Date: Thu Jan 28 13:04:16 2010 -0700
vbo: fix missing state validation bugs
Commit 2708ddfb06a36d8568e2aa130bf1f7d551fcd309 caused a few regressions.
We need to check/validate state after calling bind_arrays() because
it might set the _NEW_ARRAYS flag if the varying VP inputs change.
The symptom of this problem was some attribute arrays being ignored
(or interpreted as constant-valued) in glDrawRangeElements or
glMultiDrawElements.
A follow-on patch will add some additional asserts to try to catch
this kind of thing in the future.
---
src/mesa/vbo/vbo_exec_array.c | 28 ++++++++++++++--------------
1 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index fdd6b02..d08976c 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -443,6 +443,13 @@ recalculate_input_bindings(GLcontext *ctx)
}
+/**
+ * Examine the enabled vertex arrays to set the exec->array.inputs[] values.
+ * These will point to the arrays to actually use for drawing. Some will
+ * be user-provided arrays, other will be zero-stride const-valued arrays.
+ * Note that this might set the _NEW_ARRAY dirty flag so state validation
+ * must be done after this call.
+ */
static void
bind_arrays(GLcontext *ctx)
{
@@ -484,9 +491,6 @@ vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
FLUSH_CURRENT( ctx, 0 );
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
if (!_mesa_valid_to_render(ctx, "glDrawArrays")) {
return;
}
@@ -600,18 +604,16 @@ vbo_validated_drawrangeelements(GLcontext *ctx, GLenum mode,
FLUSH_CURRENT( ctx, 0 );
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) {
return;
}
+ bind_arrays( ctx );
+
+ /* check for dirty state again */
if (ctx->NewState)
_mesa_update_state( ctx );
- bind_arrays( ctx );
-
ib.count = count;
ib.type = type;
ib.obj = ctx->Array.ElementArrayBufferObj;
@@ -848,16 +850,10 @@ vbo_validated_multidrawelements(GLcontext *ctx, GLenum mode,
FLUSH_CURRENT( ctx, 0 );
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) {
return;
}
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
prim = _mesa_calloc(primcount * sizeof(*prim));
if (prim == NULL) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
@@ -869,6 +865,10 @@ vbo_validated_multidrawelements(GLcontext *ctx, GLenum mode,
*/
bind_arrays( ctx );
+ /* check for dirty state again */
+ if (ctx->NewState)
+ _mesa_update_state( ctx );
+
switch (type) {
case GL_UNSIGNED_INT:
index_type_size = 4;
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