OrdinaryMagician/vkdoom_m
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- moved the render interface functions out of FGLRenderer into OpenGLFrameBuffer.

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These need some consolidation among the backends, and the additional indirection in the OpenGL backend made it harder than necessary.
This commit is contained in:
Christoph Oelckers 2020-04-24 15:52:31 +02:00
commit 70d30feb4c
5 changed files with 147 additions and 158 deletions
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152
src/rendering/gl/renderer/gl_renderer.cpp
View file

@ -62,12 +62,9 @@
#include "texturemanager.h"
EXTERN_CVAR(Int, screenblocks)
EXTERN_CVAR(Bool, cl_capfps)
extern bool NoInterpolateView;
void DoWriteSavePic(FileWriter *file, ESSType ssformat, uint8_t *scr, int width, int height, sector_t *viewsector, bool upsidedown);
namespace OpenGLRenderer
{
@ -217,78 +214,6 @@ void FGLRenderer::UpdateShadowMap()
}
}
//-----------------------------------------------------------------------------
//
// renders the view
//
//-----------------------------------------------------------------------------
sector_t *FGLRenderer::RenderView(player_t* player)
{
gl_RenderState.SetVertexBuffer(screen->mVertexData);
screen->mVertexData->Reset();
sector_t *retsec;
if (!V_IsHardwareRenderer())
{
if (swdrawer == nullptr) swdrawer = new SWSceneDrawer;
retsec = swdrawer->RenderView(player);
}
else
{
hw_ClearFakeFlat();
iter_dlightf = iter_dlight = draw_dlight = draw_dlightf = 0;
checkBenchActive();
// reset statistics counters
ResetProfilingData();
// Get this before everything else
if (cl_capfps || r_NoInterpolate) r_viewpoint.TicFrac = 1.;
else r_viewpoint.TicFrac = I_GetTimeFrac();
screen->mLights->Clear();
screen->mViewpoints->Clear();
// NoInterpolateView should have no bearing on camera textures, but needs to be preserved for the main view below.
bool saved_niv = NoInterpolateView;
NoInterpolateView = false;
// Shader start time does not need to be handled per level. Just use the one from the camera to render from.
if (player->camera)
gl_RenderState.CheckTimer(player->camera->Level->ShaderStartTime);
// prepare all camera textures that have been used in the last frame.
// This must be done for all levels, not just the primary one!
for (auto Level : AllLevels())
{
Level->canvasTextureInfo.UpdateAll([&](AActor *camera, FCanvasTexture *camtex, double fov)
{
RenderTextureView(camtex, camera, fov);
});
}
NoInterpolateView = saved_niv;
// now render the main view
float fovratio;
float ratio = r_viewwindow.WidescreenRatio;
if (r_viewwindow.WidescreenRatio >= 1.3f)
{
fovratio = 1.333333f;
}
else
{
fovratio = ratio;
}
retsec = RenderViewpoint(r_viewpoint, player->camera, NULL, r_viewpoint.FieldOfView.Degrees, ratio, fovratio, true, true);
}
All.Unclock();
return retsec;
}
//===========================================================================
//
//
@ -309,83 +234,6 @@ void FGLRenderer::BindToFrameBuffer(FTexture *tex)
BaseLayer->BindToFrameBuffer(tex->GetWidth(), tex->GetHeight());
}
//===========================================================================
//
// Camera texture rendering
//
//===========================================================================
void FGLRenderer::RenderTextureView(FCanvasTexture *tex, AActor *Viewpoint, double FOV)
{
// This doesn't need to clear the fake flat cache. It can be shared between camera textures and the main view of a scene.
float ratio = tex->aspectRatio;
StartOffscreen();
BindToFrameBuffer(tex);
IntRect bounds;
bounds.left = bounds.top = 0;
bounds.width = FHardwareTexture::GetTexDimension(tex->GetWidth());
bounds.height = FHardwareTexture::GetTexDimension(tex->GetHeight());
FRenderViewpoint texvp;
RenderViewpoint(texvp, Viewpoint, &bounds, FOV, ratio, ratio, false, false);
EndOffscreen();
tex->SetUpdated(true);
static_cast<OpenGLFrameBuffer*>(screen)->camtexcount++;
}
//===========================================================================
//
// Render the view to a savegame picture
//
//===========================================================================
void FGLRenderer::WriteSavePic (player_t *player, FileWriter *file, int width, int height)
{
IntRect bounds;
bounds.left = 0;
bounds.top = 0;
bounds.width = width;
bounds.height = height;
// we must be sure the GPU finished reading from the buffer before we fill it with new data.
glFinish();
// Switch to render buffers dimensioned for the savepic
mBuffers = mSaveBuffers;
hw_ClearFakeFlat();
gl_RenderState.SetVertexBuffer(screen->mVertexData);
screen->mVertexData->Reset();
screen->mLights->Clear();
screen->mViewpoints->Clear();
// This shouldn't overwrite the global viewpoint even for a short time.
FRenderViewpoint savevp;
sector_t *viewsector = RenderViewpoint(savevp, players[consoleplayer].camera, &bounds, r_viewpoint.FieldOfView.Degrees, 1.6f, 1.6f, true, false);
glDisable(GL_STENCIL_TEST);
gl_RenderState.SetNoSoftLightLevel();
CopyToBackbuffer(&bounds, false);
// strictly speaking not needed as the glReadPixels should block until the scene is rendered, but this is to safeguard against shitty drivers
glFinish();
int numpixels = width * height;
uint8_t * scr = (uint8_t *)M_Malloc(numpixels * 3);
glReadPixels(0,0,width, height,GL_RGB,GL_UNSIGNED_BYTE,scr);
DoWriteSavePic(file, SS_RGB, scr, width, height, viewsector, true);
M_Free(scr);
// Switch back the screen render buffers
screen->SetViewportRects(nullptr);
mBuffers = mScreenBuffers;
}
//===========================================================================
//
//