mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-25 17:18:12 -05:00
128 lines
3.8 KiB
Text
128 lines
3.8 KiB
Text
/*
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* Copyright 2011-2015 Branimir Karadzic. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#include "bgfx_p.h"
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#if BX_PLATFORM_IOS && (BGFX_CONFIG_RENDERER_OPENGLES|BGFX_CONFIG_RENDERER_OPENGL)
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# include <UIKit/UIKit.h>
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# include <QuartzCore/CAEAGLLayer.h>
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# include "renderer_gl.h"
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namespace bgfx { namespace gl
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{
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# define GL_IMPORT(_optional, _proto, _func, _import) _proto _func = NULL
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# include "glimports.h"
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void GlContext::create(uint32_t _width, uint32_t _height)
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{
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BX_UNUSED(_width, _height);
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CAEAGLLayer* layer = (CAEAGLLayer*)g_bgfxEaglLayer;
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layer.opaque = true;
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layer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys
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: [NSNumber numberWithBool:false]
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, kEAGLDrawablePropertyRetainedBacking
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, kEAGLColorFormatRGBA8
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, kEAGLDrawablePropertyColorFormat
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, nil
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];
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EAGLContext* context = [ [EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
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BX_CHECK(NULL != context, "Failed to create kEAGLRenderingAPIOpenGLES2 context.");
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m_context = (void*)context;
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[EAGLContext setCurrentContext:context];
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GL_CHECK(glGenFramebuffers(1, &m_fbo) );
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GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_fbo) );
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GL_CHECK(glGenRenderbuffers(1, &m_colorRbo) );
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_colorRbo) );
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[context renderbufferStorage:GL_RENDERBUFFER fromDrawable:layer];
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GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_colorRbo) );
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GLint width;
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GLint height;
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GL_CHECK(glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &width) );
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GL_CHECK(glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &height) );
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BX_TRACE("Screen size: %d x %d", width, height);
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GL_CHECK(glGenRenderbuffers(1, &m_depthStencilRbo) );
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_depthStencilRbo) );
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GL_CHECK(glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8_OES, width, height) ); // from OES_packed_depth_stencil
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GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, m_depthStencilRbo) );
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GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_depthStencilRbo) );
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BX_CHECK(GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER)
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, "glCheckFramebufferStatus failed 0x%08x"
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, glCheckFramebufferStatus(GL_FRAMEBUFFER)
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);
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}
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void GlContext::destroy()
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{
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if (0 != m_fbo)
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{
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GL_CHECK(glDeleteFramebuffers(1, &m_fbo) );
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m_fbo = 0;
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}
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if (0 != m_colorRbo)
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{
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GL_CHECK(glDeleteRenderbuffers(1, &m_colorRbo) );
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m_colorRbo = 0;
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}
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if (0 != m_depthStencilRbo)
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{
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GL_CHECK(glDeleteRenderbuffers(1, &m_depthStencilRbo) );
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m_depthStencilRbo = 0;
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}
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EAGLContext* context = (EAGLContext*)m_context;
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[context release];
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}
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void GlContext::resize(uint32_t _width, uint32_t _height, uint32_t _flags)
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{
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BX_UNUSED(_width, _height, _flags);
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BX_TRACE("resize context");
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}
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bool GlContext::isSwapChainSupported()
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{
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return false;
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}
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SwapChainGL* GlContext::createSwapChain(void* /*_nwh*/)
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{
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BX_CHECK(false, "Shouldn't be called!");
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return NULL;
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}
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void GlContext::destroySwapChain(SwapChainGL* /*_swapChain*/)
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{
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BX_CHECK(false, "Shouldn't be called!");
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}
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void GlContext::swap(SwapChainGL* _swapChain)
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{
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BX_CHECK(NULL == _swapChain, "Shouldn't be called!"); BX_UNUSED(_swapChain);
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_colorRbo) );
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EAGLContext* context = (EAGLContext*)m_context;
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[context presentRenderbuffer:GL_RENDERBUFFER];
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}
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void GlContext::makeCurrent(SwapChainGL* /*_swapChain*/)
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{
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}
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void GlContext::import()
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{
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}
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} /* namespace gl */ } // namespace bgfx
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#endif // BX_PLATFORM_IOS && (BGFX_CONFIG_RENDERER_OPENGLES2|BGFX_CONFIG_RENDERER_OPENGLES3|BGFX_CONFIG_RENDERER_OPENGL)
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