X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fcondrender.c;h=bfd2b08180727494d7cd7d81c3095983a50a5ead;hb=c6ed42a89ede459e72b18cd8890cc3aba39905f5;hp=8d9a91d5478011d02d9f03e32fe5df4fefc4d066;hpb=b01ffb12ed82dcf435b186e2aff35e344a8a6ebe;p=mesa.git

diff --git a/src/mesa/main/condrender.c b/src/mesa/main/condrender.c
index 8d9a91d5478..bfd2b081807 100644
--- a/src/mesa/main/condrender.c
+++ b/src/mesa/main/condrender.c
@@ -34,6 +34,7 @@
 #include "glheader.h"
 #include "condrender.h"
 #include "enums.h"
+#include "mtypes.h"
 #include "queryobj.h"
 
 
@@ -43,7 +44,8 @@ _mesa_BeginConditionalRender(GLuint queryId, GLenum mode)
    struct gl_query_object *q;
    GET_CURRENT_CONTEXT(ctx);
 
-   if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery) {
+   if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery ||
+       queryId == 0) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
       return;
    }
@@ -71,7 +73,7 @@ _mesa_BeginConditionalRender(GLuint queryId, GLenum mode)
    }
    ASSERT(q->Id == queryId);
 
-   if (q->Target != GL_SAMPLES_PASSED) {
+   if (q->Target != GL_SAMPLES_PASSED || q->Active) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
       return;
    }
@@ -117,7 +119,7 @@ _mesa_EndConditionalRender(void)
  * \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;
 
@@ -137,6 +139,8 @@ _mesa_check_conditional_render(GLcontext *ctx)
    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 "