- add post processing support to the software renderer and softpoly

src/gl/system/gl_framebuffer.cpp

@@ -479,3 +479,8 @@ void OpenGLFrameBuffer::Draw2D()
 {
 	if (GLRenderer != nullptr) GLRenderer->Draw2D(&m2DDrawer);
 }
+
+void OpenGLFrameBuffer::PostProcessScene(int fixedcm, const std::function<void()> &afterBloomDrawEndScene2D)
+{
+	GLRenderer->PostProcessScene(fixedcm, afterBloomDrawEndScene2D);
+}

src/gl/system/gl_framebuffer.h

@@ -44,7 +44,6 @@ public:
     IUniformBuffer *CreateUniformBuffer(size_t size, bool staticuse = false) override;
 	IShaderProgram *CreateShaderProgram() override;
 
-
 	// Retrieves a buffer containing image data for a screenshot.
 	// Hint: Pitch can be negative for upside-down images, in which case buffer
 	// points to the last row in the buffer, which will be the first row output.
@@ -60,6 +59,7 @@ public:
 	void SetVSync(bool vsync);
 
 	void Draw2D() override;
+	void PostProcessScene(int fixedcm, const std::function<void()> &afterBloomDrawEndScene2D) override;
 
 	bool HWGammaActive = false;			// Are we using hardware or software gamma?
 	std::shared_ptr<FGLDebug> mDebug;	// Debug API

src/swrenderer/r_swscene.cpp

@@ -122,6 +122,13 @@ sector_t *SWSceneDrawer::RenderView(player_t *player)
 
 	auto map = swrenderer::CameraLight::Instance()->ShaderColormap();
 	screen->DrawTexture(fbtex.get(), 0, 0, DTA_SpecialColormap, map, TAG_DONE);
+	screen->Draw2D();
+	screen->Clear2D();
+	screen->PostProcessScene(CM_DEFAULT, [&]() {
 		SWRenderer->DrawRemainingPlayerSprites();
+		screen->Draw2D();
+		screen->Clear2D();
+	});
+
 	return r_viewpoint.sector;
 }

src/v_video.h

@@ -43,6 +43,7 @@
 #include "c_cvars.h"
 #include "v_colortables.h"
 #include "v_2ddrawer.h"
+#include <functional>
 
 struct sector_t;
 class IShaderProgram;
@@ -464,6 +465,8 @@ public:
 	virtual bool WipeDo(int ticks);
 	virtual void WipeCleanup();
 
+	virtual void PostProcessScene(int fixedcm, const std::function<void()> &afterBloomDrawEndScene2D) { if (afterBloomDrawEndScene2D) afterBloomDrawEndScene2D(); }
+
 	void ScaleCoordsFromWindow(int16_t &x, int16_t &y);
 
 	uint64_t GetLastFPS() const { return LastCount; }