mirror of
https://github.com/jpd002/Play-.git
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84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
#include <cassert>
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#include "opengl/OpenGlDef.h"
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#include "GSH_OpenGLiOS.h"
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#include "../Log.h"
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CGSH_OpenGLiOS::CGSH_OpenGLiOS(CAEAGLLayer* layer)
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: m_layer(layer)
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{
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}
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CGSH_OpenGLiOS::~CGSH_OpenGLiOS()
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{
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}
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CGSHandler::FactoryFunction CGSH_OpenGLiOS::GetFactoryFunction(CAEAGLLayer* layer)
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{
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return [layer]() { return new CGSH_OpenGLiOS(layer); };
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}
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void CGSH_OpenGLiOS::InitializeImpl()
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{
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m_context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
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if(!m_context)
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{
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NSLog(@"Failed to create ES context");
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return;
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}
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if(![EAGLContext setCurrentContext:m_context])
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{
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NSLog(@"Failed to set ES context current");
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return;
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}
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CreateFramebuffer();
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{
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PRESENTATION_PARAMS presentationParams;
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presentationParams.mode = PRESENTATION_MODE_FIT;
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presentationParams.windowWidth = m_framebufferWidth;
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presentationParams.windowHeight = m_framebufferHeight;
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SetPresentationParams(presentationParams);
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}
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CGSH_OpenGL::InitializeImpl();
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}
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void CGSH_OpenGLiOS::PresentBackbuffer()
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{
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glBindRenderbuffer(GL_RENDERBUFFER, m_colorRenderbuffer);
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CHECKGLERROR();
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BOOL success = [m_context presentRenderbuffer:GL_RENDERBUFFER];
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assert(success == YES);
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}
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void CGSH_OpenGLiOS::CreateFramebuffer()
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{
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assert(m_defaultFramebuffer == 0);
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glGenFramebuffers(1, &m_defaultFramebuffer);
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glBindFramebuffer(GL_FRAMEBUFFER, m_defaultFramebuffer);
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// Create color render buffer and allocate backing store.
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glGenRenderbuffers(1, &m_colorRenderbuffer);
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glBindRenderbuffer(GL_RENDERBUFFER, m_colorRenderbuffer);
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[m_context renderbufferStorage:GL_RENDERBUFFER fromDrawable:m_layer];
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glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &m_framebufferWidth);
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glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &m_framebufferHeight);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_colorRenderbuffer);
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CHECKGLERROR();
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if(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
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{
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NSLog(@"Failed to make complete framebuffer object %x", glCheckFramebufferStatus(GL_FRAMEBUFFER));
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assert(false);
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}
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m_presentFramebuffer = m_defaultFramebuffer;
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}
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