SuperTuxKart 1.5 upstream source (from official release tarball)

2026-06-11 20:04:02 +02:00
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+// Copyright (C) 2013 Patryk Nadrowski
+// Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt
+// OpenGL ES driver implemented by Christian Stehno and first OpenGL ES 2.0
+// driver implemented by Amundis.
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in Irrlicht.h
+
+#include "IrrCompileConfig.h"
+
+#ifdef _IRR_COMPILE_WITH_OGLES2_
+
+#include "COGLES2Renderer2D.h"
+#include "IGPUProgrammingServices.h"
+#include "os.h"
+#include "COGLES2Driver.h"
+
+namespace irr
+{
+namespace video
+{
+
+//! Constructor
+COGLES2Renderer2D::COGLES2Renderer2D(const c8* vertexShaderProgram, const c8* pixelShaderProgram, COGLES2Driver* driver)
+	:	COGLES2MaterialRenderer(driver, 0, EMT_SOLID), RenderTargetSize(core::dimension2d<u32>(0,0)),
+		Matrix(core::matrix4::EM4CONST_NOTHING), Texture(0)
+{
+	#ifdef _DEBUG
+	setDebugName("COGLES2Renderer2D");
+	#endif
+
+	int Temp = 0;
+
+	init(Temp, vertexShaderProgram, pixelShaderProgram, false);
+
+	Driver->getBridgeCalls()->setProgram(Program);
+
+	// These states doesn't change later.
+
+	MatrixID = getPixelShaderConstantID("uOrthoMatrix");
+	UseTextureID = getPixelShaderConstantID("uUseTexture");
+	s32 TextureUnitID = getPixelShaderConstantID("uTextureUnit");	
+
+	int TextureUnit = 0;
+	setPixelShaderConstant(TextureUnitID, &TextureUnit, 1);
+
+	Driver->getBridgeCalls()->setProgram(0);
+}
+
+
+//! Destructor
+COGLES2Renderer2D::~COGLES2Renderer2D()
+{
+}
+
+
+void COGLES2Renderer2D::OnSetMaterial(const video::SMaterial& material,
+				const video::SMaterial& lastMaterial,
+				bool resetAllRenderstates,
+				video::IMaterialRendererServices* services)
+{
+	Driver->getBridgeCalls()->setProgram(Program);
+
+	Driver->setBasicRenderStates(material, lastMaterial, resetAllRenderstates);
+}
+
+
+bool COGLES2Renderer2D::OnRender(IMaterialRendererServices* service, E_VERTEX_TYPE vtxtype)
+{
+	Driver->setTextureRenderStates(Driver->getCurrentMaterial(), false);
+
+	const core::dimension2d<u32>& renderTargetSize = Driver->getCurrentRenderTargetSize();
+
+	if (RenderTargetSize != renderTargetSize)
+	{
+		Matrix.buildProjectionMatrixOrthoLH(f32(renderTargetSize.Width), f32(-(s32)(renderTargetSize.Height)), -1.0f, 1.0f);
+		Matrix.setTranslation(core::vector3df(-1,1,0));
+
+		setPixelShaderConstant(MatrixID, Matrix.pointer(), 16);
+
+		RenderTargetSize = renderTargetSize;
+	}
+
+	int UseTexture = Texture ? 1 : 0;
+	setPixelShaderConstant(UseTextureID, &UseTexture, 1);
+
+	return true;
+}
+
+
+void COGLES2Renderer2D::setTexture(const ITexture* texture)
+{
+	Texture = texture;
+}
+
+
+} // end namespace video
+} // end namespace irr
+
+
+#endif