diff options
| -rw-r--r-- | src/mesa/main/condrender.c | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/src/mesa/main/condrender.c b/src/mesa/main/condrender.c index 2632f7a1a37..0ad1e5c2aee 100644 --- a/src/mesa/main/condrender.c +++ b/src/mesa/main/condrender.c @@ -40,17 +40,38 @@ void GLAPIENTRY _mesa_BeginConditionalRender(GLuint queryId, GLenum mode) { - struct gl_query_object *q; + struct gl_query_object *q = NULL; GET_CURRENT_CONTEXT(ctx); - if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery || - queryId == 0) { + /* 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: @@ -64,14 +85,12 @@ _mesa_BeginConditionalRender(GLuint queryId, GLenum mode) 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); - + /* 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) { |