/*
* Mesa 3-D graphics library
- * Version: 7.8
*
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
*
#include "glheader.h"
#include "condrender.h"
#include "enums.h"
+#include "mtypes.h"
#include "queryobj.h"
-GLAPI void GLAPIENTRY
+void GLAPIENTRY
_mesa_BeginConditionalRender(GLuint queryId, GLenum mode)
{
- struct gl_query_object *q;
+ struct gl_query_object *q = NULL;
GET_CURRENT_CONTEXT(ctx);
+ /* Section 2.14 (Conditional Rendering) of the OpenGL 3.0 spec says:
+ *
+ * "If BeginConditionalRender is called while conditional rendering is
+ * in progress, or if EndConditionalRender is called while conditional
+ * rendering is not in progress, the error INVALID_OPERATION is
+ * generated."
+ */
if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
return;
ASSERT(ctx->Query.CondRenderMode == GL_NONE);
+ /* Section 2.14 (Conditional Rendering) of the OpenGL 3.0 spec says:
+ *
+ * "The error INVALID_VALUE is generated if <id> is not the name of an
+ * existing query object query."
+ */
+ if (queryId != 0)
+ q = _mesa_lookup_query_object(ctx, queryId);
+
+ if (!q) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBeginConditionalRender(bad queryId=%u)", queryId);
+ return;
+ }
+ ASSERT(q->Id == queryId);
+
switch (mode) {
case GL_QUERY_WAIT:
case GL_QUERY_NO_WAIT:
return;
}
- q = _mesa_lookup_query_object(ctx, queryId);
- if (!q) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBeginConditionalRender(bad queryId=%u)", queryId);
- return;
- }
- ASSERT(q->Id == queryId);
-
- if (q->Target != GL_SAMPLES_PASSED) {
+ /* Section 2.14 (Conditional Rendering) of the OpenGL 3.0 spec says:
+ *
+ * "The error INVALID_OPERATION is generated if <id> is the name of a
+ * query object with a target other than SAMPLES_PASSED, or <id> is the
+ * name of a query currently in progress."
+ */
+ if ((q->Target != GL_SAMPLES_PASSED &&
+ q->Target != GL_ANY_SAMPLES_PASSED &&
+ q->Target != GL_ANY_SAMPLES_PASSED_CONSERVATIVE) || q->Active) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
return;
}
}
-GLAPI void APIENTRY
+void APIENTRY
_mesa_EndConditionalRender(void)
{
GET_CURRENT_CONTEXT(ctx);
+ FLUSH_VERTICES(ctx, 0x0);
+
if (!ctx->Extensions.NV_conditional_render || !ctx->Query.CondRenderQuery) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glEndConditionalRender()");
return;
/**
- * This function is called by software rendering commands to determine if
- * subsequent drawing commands should be executed or discarded depending
- * on the current conditional rendering state.
- * Ideally, this check would be implemented by the GPU when doing hardware
- * rendering.
- * XXX should this function be called via a new driver hook?
+ * This function is called by software rendering commands (all point,
+ * line triangle drawing, glClear, glDrawPixels, glCopyPixels, and
+ * glBitmap, glBlitFramebuffer) to determine if subsequent drawing
+ * commands should be
+ * executed or discarded depending on the current conditional
+ * rendering state. Ideally, this check would be implemented by the
+ * GPU when doing hardware rendering. XXX should this function be
+ * called via a new driver hook?
*
* \return GL_TRUE if we should render, GL_FALSE if we should discard
*/
GLboolean
-_mesa_check_conditional_render(GLcontext *ctx)
+_mesa_check_conditional_render(struct gl_context *ctx)
{
struct gl_query_object *q = ctx->Query.CondRenderQuery;
case GL_QUERY_BY_REGION_NO_WAIT:
/* fall-through */
case GL_QUERY_NO_WAIT:
+ if (!q->Ready)
+ ctx->Driver.CheckQuery(ctx, q);
return q->Ready ? (q->Result > 0) : GL_TRUE;
default:
_mesa_problem(ctx, "Bad cond render mode %s in "