diff --git a/desmume/src/OGLRender_ES3.cpp b/desmume/src/OGLRender_ES3.cpp index 6a024df06..8c1ff5f64 100644 --- a/desmume/src/OGLRender_ES3.cpp +++ b/desmume/src/OGLRender_ES3.cpp @@ -315,7 +315,7 @@ Render3DError OpenGLESRenderer_3_0::InitExtensions() glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &maxUBOSize); this->_is64kUBOSupported = (maxUBOSize >= 65536); - // TBOs are only supported in ES 3.2. + // TBOs are only supported in OpenGL ES 3.2. this->_isTBOSupported = IsOpenGLDriverVersionSupported(3, 2, 0); // Fixed locations in shaders are supported in ES 3.0 by default. @@ -325,7 +325,7 @@ Render3DError OpenGLESRenderer_3_0::InitExtensions() glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAnisotropyOGL); this->_deviceInfo.maxAnisotropy = (float)maxAnisotropyOGL; - // OpenGL ES 3.0 needs to look up the best format and data type for glReadPixels. + // OpenGL ES 3.0 should be able to handle the GL_RGBA format in glReadPixels without any performance penalty. OGLRef.readPixelsBestFormat = GL_RGBA; OGLRef.readPixelsBestDataType = GL_UNSIGNED_BYTE; @@ -345,7 +345,7 @@ Render3DError OpenGLESRenderer_3_0::InitExtensions() glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, (GLsizei)this->_framebufferWidth, (GLsizei)this->_framebufferHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); glActiveTexture(GL_TEXTURE0); - // OpenGL ES v3.0 should have all the necessary features to be able to flip and convert the framebuffer. + // OpenGL ES 3.0 should have all the necessary features to be able to flip and convert the framebuffer. this->willFlipAndConvertFramebufferOnGPU = true; this->_enableTextureSmoothing = CommonSettings.GFX3D_Renderer_TextureSmoothing; @@ -414,7 +414,7 @@ Render3DError OpenGLESRenderer_3_0::InitExtensions() this->isVAOSupported = true; this->CreateVAOs(); - // Load and create FBOs. Return on any error, since v3.2 Core Profile makes FBOs mandatory. + // Load and create FBOs. Return on any error, since OpenGL ES 3.0 includes FBOs as core functionality. this->isFBOSupported = true; error = this->CreateFBOs(); if (error != OGLERROR_NOERR) @@ -957,7 +957,7 @@ Render3DError OpenGLESRenderer_3_0::CreateFramebufferOutput6665Program(const siz vsHeader << "#define IN_VTX_COLOR layout (location = " << OGLVertexAttributeID_Color << ") in\n"; std::stringstream fsHeader; - fsHeader << "#define OUT_COLOR layout (location = 0) out\n"; + fsHeader << "#define OUT_COLOR layout (location = " << (OGL_WORKING_ATTACHMENT_ID - GL_COLOR_ATTACHMENT0) << ") out\n"; std::string vtxShaderCode = shaderHeader.str() + vsHeader.str() + std::string(vtxShaderCString); std::string fragShaderCode = shaderHeader.str() + fsHeader.str() + std::string(fragShaderCString);