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Moved WriteSavePic implementation to FGLRenderer

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This commit is contained in:
Christoph Oelckers 2018-06-20 12:29:52 +02:00
commit 469c9241eb
3 changed files with 50 additions and 50 deletions
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54
src/gl/renderer/gl_renderer.cpp
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@ -361,14 +361,58 @@ void FGLRenderer::RenderTextureView(FCanvasTexture *tex, AActor *Viewpoint, doub
tex->SetUpdated();
}
void FGLRenderer::WriteSavePic(player_t *player, FileWriter *file, int width, int height)
//===========================================================================
//
// Render the view to a savegame picture
//
//===========================================================================
void FGLRenderer::WriteSavePic (player_t *player, FileWriter *file, int width, int height)
{
// Todo: This needs to call the software renderer and process the returned image, if so desired.
// This also needs to take out parts of the scene drawer so they can be shared between renderers.
GLSceneDrawer drawer;
drawer.WriteSavePic(player, file, width, height);
IntRect bounds;
bounds.left = 0;
bounds.top = 0;
bounds.width = width;
bounds.height = height;
// if GLRenderer->mVBO is persistently mapped we must be sure the GPU finished reading from it before we fill it with new data.
glFinish();
// Switch to render buffers dimensioned for the savepic
mBuffers = mSaveBuffers;
P_FindParticleSubsectors(); // make sure that all recently spawned particles have a valid subsector.
gl_RenderState.SetVertexBuffer(mVBO);
mVBO->Reset();
mLights->Clear();
// This shouldn't overwrite the global viewpoint even for a short time.
GLSceneDrawer drawer;
FRenderViewpoint savevp;
sector_t *viewsector = drawer.RenderViewpoint(savevp, players[consoleplayer].camera, &bounds, r_viewpoint.FieldOfView.Degrees, 1.6f, 1.6f, true, false);
glDisable(GL_STENCIL_TEST);
gl_RenderState.SetSoftLightLevel(-1);
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();
uint8_t * scr = (uint8_t *)M_Malloc(width * height * 3);
glReadPixels(0,0,width, height,GL_RGB,GL_UNSIGNED_BYTE,scr);
M_CreatePNG (file, scr + ((height-1) * width * 3), NULL, SS_RGB, width, height, -width * 3, Gamma);
M_Free(scr);
// Switch back the screen render buffers
screen->SetViewportRects(nullptr);
mBuffers = mScreenBuffers;
}
//===========================================================================
//
//
//
//===========================================================================
void FGLRenderer::BeginFrame()
{
buffersActive = GLRenderer->mScreenBuffers->Setup(screen->mScreenViewport.width, screen->mScreenViewport.height, screen->mSceneViewport.width, screen->mSceneViewport.height);