Mesa (master): vbo: add debug code to verify that buffers are unmapped before drawing
Brian Paul
brianp at kemper.freedesktop.org
Fri Feb 18 17:37:35 UTC 2011
Module: Mesa
Branch: master
Commit: 7ea729a1855e93b3c41c72781950f8612221fd5c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7ea729a1855e93b3c41c72781950f8612221fd5c
Author: Brian Paul <brianp at vmware.com>
Date: Fri Feb 18 10:34:06 2011 -0700
vbo: add debug code to verify that buffers are unmapped before drawing
---
src/mesa/vbo/vbo_exec_array.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index 6749541..25de140 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -39,6 +39,26 @@
/**
+ * All vertex buffers should be in an unmapped state when we're about
+ * to draw. This debug function checks that.
+ */
+static void
+check_buffers_are_unmapped(const struct gl_client_array **inputs)
+{
+#ifdef DEBUG
+ GLuint i;
+
+ for (i = 0; i < VERT_ATTRIB_MAX; i++) {
+ if (inputs[i]) {
+ struct gl_buffer_object *obj = inputs[i]->BufferObj;
+ assert(!_mesa_bufferobj_mapped(obj));
+ }
+ }
+#endif
+}
+
+
+/**
* Compute min and max elements by scanning the index buffer for
* glDraw[Range]Elements() calls.
* If primitive restart is enabled, we need to ignore restart
@@ -581,6 +601,7 @@ vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
if (primCount > 0) {
/* draw one or two prims */
+ check_buffers_are_unmapped(exec->array.inputs);
vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL,
GL_TRUE, start, start + count - 1);
}
@@ -590,6 +611,7 @@ vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
prim[0].start = start;
prim[0].count = count;
+ check_buffers_are_unmapped(exec->array.inputs);
vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL,
GL_TRUE, start, start + count - 1);
}
@@ -795,6 +817,7 @@ vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,
* for the latter case elsewhere.
*/
+ check_buffers_are_unmapped(exec->array.inputs);
vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib,
index_bounds_valid, start, end );
}
@@ -1111,6 +1134,7 @@ vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
prim[i].basevertex = 0;
}
+ check_buffers_are_unmapped(exec->array.inputs);
vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib,
GL_FALSE, ~0, ~0);
} else {
@@ -1135,6 +1159,7 @@ vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
else
prim[0].basevertex = 0;
+ check_buffers_are_unmapped(exec->array.inputs);
vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib,
GL_FALSE, ~0, ~0);
}
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