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GL_QUERY_RESULT_AVAILABLE_EXT calls disable, as on PowerVR SGX / iOS, glGetQueryObjectuivEXT seems to be blocking. (Will need to change to asynchronous logic in the future to maintain performance and follow the "spec")

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This commit is contained in:
Kearwood Gilbert
2013-04-12 01:07:41 -07:00
parent 1d891e4192
commit 4920649d42
2 changed files with 11 additions and 1 deletions
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2
KREngine/kraken/KRLight.cpp
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@@ -286,10 +286,12 @@ void KRLight::render(KRCamera *pCamera, std::vector<KRLight *> &lights, const KR
if(m_flareTexture.size() && m_flareSize > 0.0f) {
if(m_occlusionQuery) {
/*
GLuint hasBeenTested = 0;
while(!hasBeenTested) {
GLDEBUG(glGetQueryObjectuivEXT(m_occlusionQuery, GL_QUERY_RESULT_AVAILABLE_EXT, &hasBeenTested)); // FINDME, HACK!! This needs to be replaced with asynchonous logic
}
*/
GLuint params = 0;
GLDEBUG(glGetQueryObjectuivEXT(m_occlusionQuery, GL_QUERY_RESULT_EXT, &params));
GLDEBUG(glDeleteQueriesEXT(1, &m_occlusionQuery));

10
KREngine/kraken/KRScene.cpp
View File

@@ -45,7 +45,7 @@
#include "KRPointLight.h"
#include "KRQuaternion.h"
const long KRENGINE_OCCLUSION_TEST_EXPIRY = 60;
const long KRENGINE_OCCLUSION_TEST_EXPIRY = 10;
KRScene::KRScene(KRContext &context, std::string name) : KRResource(context, name) {
m_pFirstLight = NULL;
@@ -165,10 +165,17 @@ void KRScene::render(KROctreeNode *pOctreeNode, std::map<KRAABB, int> &visibleBo
if(bOcclusionResultsPass) {
// ----====---- Occlusion results pass ----====----
if(pOctreeNode->m_occlusionTested) {
/*
GLuint hasBeenTested = 0;
int c =0;
while(!hasBeenTested) {
GLDEBUG(glGetQueryObjectuivEXT(pOctreeNode->m_occlusionQuery, GL_QUERY_RESULT_AVAILABLE_EXT, &hasBeenTested)); // FINDME, HACK!! This needs to be replaced with asynchonous logic
c++;
}
if(c > 1) {
fprintf(stderr, "GL_QUERY_RESULT_AVAILABLE_EXT count = %i\n", c);
}
*/
GLuint params = 0;
GLDEBUG(glGetQueryObjectuivEXT(pOctreeNode->m_occlusionQuery, GL_QUERY_RESULT_EXT, &params));
@@ -282,6 +289,7 @@ void KRScene::render(KROctreeNode *pOctreeNode, std::map<KRAABB, int> &visibleBo
if(getContext().getShaderManager()->selectShader("occlusion_test", *pCamera, lights, 0, viewport, matModel, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, KRNode::RENDER_PASS_FORWARD_TRANSPARENT)) {
GLDEBUG(glDrawArrays(GL_TRIANGLE_STRIP, 0, 14));
m_pContext->getModelManager()->log_draw_call(renderPass, "octree", "occlusion_test", 14);
}
if(renderPass == KRNode::RENDER_PASS_FORWARD_OPAQUE ||