void GLGSRender::check_zcull_status(bool framebuffer_swap, bool force_read)
{
if (g_cfg.video.disable_zcull_queries)
return;
bool testing_enabled = zcull_pixel_cnt_enabled || zcull_stats_enabled;
if (framebuffer_swap)
{
zcull_surface_active = false;
const u32 zeta_address = depth_surface_info.address;
if (zeta_address)
{
//Find zeta address in bound zculls
for (int i = 0; i < rsx::limits::zculls_count; i++)
{
if (zculls[i].binded)
{
const u32 rsx_address = rsx::get_address(zculls[i].offset, CELL_GCM_LOCATION_LOCAL);
if (rsx_address == zeta_address)
{
zcull_surface_active = true;
break;
}
}
}
}
}
occlusion_query_info* query = nullptr;
if (zcull_task_queue.task_stack.size() > 0)
query = zcull_task_queue.active_query;
if (query && query->active)
{
if (force_read || (!zcull_rendering_enabled || !testing_enabled || !zcull_surface_active))
{
glEndQuery(GL_ANY_SAMPLES_PASSED);
query->active = false;
query->pending = true;
}
}
else
{
if (zcull_rendering_enabled && testing_enabled && zcull_surface_active)
{
//Find query
u32 free_index = synchronize_zcull_stats();
query = &occlusion_query_data[free_index];
zcull_task_queue.add(query);
glBeginQuery(GL_ANY_SAMPLES_PASSED, query->handle);
query->active = true;
query->result = 0;
query->num_draws = 0;
}
}
}
u32 GLGSRender::get_zcull_stats(u32 type)
{
if (g_cfg.video.disable_zcull_queries)
return 0u;
if (zcull_task_queue.active_query &&
zcull_task_queue.active_query->active &&
current_zcull_stats.zpass_pixel_cnt == 0 &&
type == CELL_GCM_ZPASS_PIXEL_CNT)
{
//The zcull unit is still bound as the read is happening and there are no results ready
check_zcull_status(false, true); //close current query
check_zcull_status(false, false); //start new query since stat counting is still active
}
switch (type)
{
case CELL_GCM_ZPASS_PIXEL_CNT:
{
if (current_zcull_stats.zpass_pixel_cnt > 0)
return UINT16_MAX;
synchronize_zcull_stats(true);
return (current_zcull_stats.zpass_pixel_cnt > 0)? UINT16_MAX : 0;
}
case CELL_GCM_ZCULL_STATS:
case CELL_GCM_ZCULL_STATS1:
case CELL_GCM_ZCULL_STATS2:
//TODO
return UINT16_MAX;
case CELL_GCM_ZCULL_STATS3:
{
//Some kind of inverse value
if (current_zcull_stats.zpass_pixel_cnt > 0)
return 0;
synchronize_zcull_stats(true);
return (current_zcull_stats.zpass_pixel_cnt > 0) ? 0 : UINT16_MAX;
}
default:
LOG_ERROR(RSX, "Unknown zcull stat type %d", type);
return 0;
}
}
u32 GLGSRender::get_zcull_stats(u32 type)
{
if (g_cfg.video.disable_zcull_queries)
return 0u;
if (zcull_task_queue.active_query &&
zcull_task_queue.active_query->active &&
current_zcull_stats.zpass_pixel_cnt == 0)
{
//The zcull unit is still bound as the read is happening and there are no results ready
check_zcull_status(false, true);
}
switch (type)
{
case CELL_GCM_ZPASS_PIXEL_CNT:
{
if (current_zcull_stats.zpass_pixel_cnt > 0)
return UINT32_MAX;
//If we have no results, we might as well synchronize here and wait for results to become available
synchronize_zcull_stats(true);
return (current_zcull_stats.zpass_pixel_cnt > 0)? UINT32_MAX: 0;
}
case CELL_GCM_ZCULL_STATS:
case CELL_GCM_ZCULL_STATS1:
case CELL_GCM_ZCULL_STATS2:
//TODO
return UINT32_MAX;
case CELL_GCM_ZCULL_STATS3:
{
//Some kind of inverse value
if (current_zcull_stats.zpass_pixel_cnt > 0)
return 0;
synchronize_zcull_stats(true);
return (current_zcull_stats.zpass_pixel_cnt > 0) ? 0 : UINT32_MAX;
}
default:
LOG_ERROR(RSX, "Unknown zcull stat type %d", type);
return 0;
}
}
u32 GLGSRender::synchronize_zcull_stats(bool hard_sync)
{
if (!zcull_rendering_enabled || zcull_task_queue.pending == 0)
return 0;
u32 result = UINT16_MAX;
GLint count, status;
for (auto &query : zcull_task_queue.task_stack)
{
if (query == nullptr || query->active)
continue;
glGetQueryObjectiv(query->handle, GL_QUERY_RESULT_AVAILABLE, &status);
if (status == GL_FALSE && !hard_sync)
continue;
glGetQueryObjectiv(query->handle, GL_QUERY_RESULT, &count);
query->pending = false;
query = nullptr;
current_zcull_stats.zpass_pixel_cnt += count;
zcull_task_queue.pending--;
}
for (u32 i = 0; i < occlusion_query_count; ++i)
{
auto &query = occlusion_query_data[i];
if (!query.pending && !query.active)
{
result = i;
break;
}
}
if (result == UINT16_MAX && !hard_sync)
return synchronize_zcull_stats(true);
return result;
}
