- merged gzdoom-gles2 and fixed some issues with pipeline size validation.

src/common/rendering/gles/gles_renderer.cpp

@@ -0,0 +1,159 @@
+/*
+** gl_renderer.cpp
+** Renderer interface
+**
+**---------------------------------------------------------------------------
+** Copyright 2005-2020 Christoph Oelckers
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+*/ 
+
+#include "gles_system.h"
+#include "files.h"
+#include "v_video.h"
+#include "m_png.h"
+#include "filesystem.h"
+#include "i_time.h"
+#include "cmdlib.h"
+#include "version.h"
+#include "gles_framebuffer.h"
+#include "hw_cvars.h"
+#include "gles_renderer.h"
+#include "gles_hwtexture.h"
+#include "gles_renderstate.h"
+#include "gles_samplers.h"
+#include "gles_renderbuffers.h"
+#include "gles_shaderprogram.h"
+#include "flatvertices.h"
+#include "hw_lightbuffer.h"
+#include "r_videoscale.h"
+#include "model.h"
+#include "gles_postprocessstate.h"
+#include "gles_buffers.h"
+#include "texturemanager.h"
+
+EXTERN_CVAR(Int, screenblocks)
+
+namespace OpenGLESRenderer
+{
+
+//===========================================================================
+// 
+// Renderer interface
+//
+//===========================================================================
+
+//-----------------------------------------------------------------------------
+//
+// Initialize
+//
+//-----------------------------------------------------------------------------
+
+FGLRenderer::FGLRenderer(OpenGLFrameBuffer *fb) 
+{
+	framebuffer = fb;
+}
+
+void FGLRenderer::Initialize(int width, int height)
+{
+	mScreenBuffers = new FGLRenderBuffers();
+	mBuffers = mScreenBuffers;
+	mPresentShader = new FPresentShader();
+	
+	mFBID = 0;
+	mOldFBID = 0;
+
+	mShaderManager = new FShaderManager;
+	mSamplerManager = new FSamplerManager;
+}
+
+FGLRenderer::~FGLRenderer() 
+{
+	FlushModels();
+	TexMan.FlushAll();
+	if (mShaderManager != nullptr) delete mShaderManager;
+	if (mFBID != 0) glDeleteFramebuffers(1, &mFBID);
+	
+	if (mBuffers) delete mBuffers;
+	if (mPresentShader) delete mPresentShader;
+}
+
+//===========================================================================
+// 
+//
+//
+//===========================================================================
+
+bool FGLRenderer::StartOffscreen()
+{
+	bool firstBind = (mFBID == 0);
+	if (mFBID == 0)
+		glGenFramebuffers(1, &mFBID);
+	glGetIntegerv(GL_FRAMEBUFFER_BINDING, &mOldFBID);
+	glBindFramebuffer(GL_FRAMEBUFFER, mFBID);
+	return true;
+}
+
+//===========================================================================
+// 
+//
+//
+//===========================================================================
+
+void FGLRenderer::EndOffscreen()
+{
+	glBindFramebuffer(GL_FRAMEBUFFER, mOldFBID); 
+}
+
+//===========================================================================
+//
+//
+//
+//===========================================================================
+
+void FGLRenderer::BindToFrameBuffer(FTexture *tex)
+{
+	auto BaseLayer = static_cast<FHardwareTexture*>(tex->GetHardwareTexture(0, 0));
+	// must create the hardware texture first
+	BaseLayer->BindOrCreate(tex, 0, 0, 0, 0);
+	FHardwareTexture::Unbind(0);
+	gl_RenderState.ClearLastMaterial();
+	BaseLayer->BindToFrameBuffer(tex->GetWidth(), tex->GetHeight());
+}
+
+//===========================================================================
+//
+//
+//
+//===========================================================================
+
+void FGLRenderer::BeginFrame()
+{
+	mScreenBuffers->Setup(screen->mScreenViewport.width, screen->mScreenViewport.height, screen->mSceneViewport.width, screen->mSceneViewport.height);
+}
+
+}