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- check the shader timer only once per frame, not once per draw call.

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This commit is contained in:
Christoph Oelckers 2019-01-06 13:35:31 +01:00
parent 4de649d4d1
commit 83ce72db48
3 changed files with 14 additions and 7 deletions
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4
src/gl/renderer/gl_renderer.cpp
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@ -254,7 +254,9 @@ sector_t *FGLRenderer::RenderView(player_t* player)
bool saved_niv = NoInterpolateView;
NoInterpolateView = false;
// prepare all camera textures that have been used in the last frame
level.canvasTextureInfo.UpdateAll([&](AActor *camera, FCanvasTexture *camtex, double fov)
auto Level = player->mo->__GetLevel();
gl_RenderState.CheckTimer(Level->ShaderStartTime);
Level->canvasTextureInfo.UpdateAll([&](AActor *camera, FCanvasTexture *camtex, double fov)
{
RenderTextureView(camtex, camera, fov);
});

14
src/gl/renderer/gl_renderstate.cpp
View file

@ -93,12 +93,6 @@ void FGLRenderState::Reset()
bool FGLRenderState::ApplyShader()
{
static uint64_t firstFrame = 0;
// if firstFrame is not yet initialized, initialize it to current time
// if we're going to overflow a float (after ~4.6 hours, or 24 bits), re-init to regain precision
if ((firstFrame == 0) || (screen->FrameTime - firstFrame >= 1<<24) || level.ShaderStartTime >= firstFrame)
firstFrame = screen->FrameTime;
static const float nulvec[] = { 0.f, 0.f, 0.f, 0.f };
if (mSpecialEffect > EFF_NONE)
{
@ -595,4 +589,12 @@ bool FGLRenderState::SetDepthClamp(bool on)
return res;
}
void FGLRenderState::CheckTimer(uint64_t ShaderStartTime)
{
// if firstFrame is not yet initialized, initialize it to current time
// if we're going to overflow a float (after ~4.6 hours, or 24 bits), re-init to regain precision
if ((firstFrame == 0) || (screen->FrameTime - firstFrame >= 1 << 24) || ShaderStartTime >= firstFrame)
firstFrame = screen->FrameTime;
}
}

3
src/gl/renderer/gl_renderstate.h
View file

@ -50,6 +50,8 @@ enum EPassType
class FGLRenderState : public FRenderState
{
uint64_t firstFrame = 0;
uint8_t mLastDepthClamp : 1;
float mGlossiness, mSpecularLevel;
@ -102,6 +104,7 @@ public:
void Apply();
void ApplyBuffers();
void ApplyBlendMode();
void CheckTimer(uint64_t ShaderStartTime);
void ResetVertexBuffer()
{