mirror of
https://github.com/DrBeef/Doom3Quest.git
synced 2025-03-13 12:32:01 +00:00
a9dbcb1f7b
some minor bugs with videos not playing on the PDA but it is pretty much working how it was now.
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/*
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Emile Belanger
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GPL3
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*/
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#include "renderer/tr_local.h"
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#include "renderer/VertexCache.h"
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static GLuint m_framebuffer[3];
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static GLuint m_depthbuffer[3];
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static int m_framebuffer_width, m_framebuffer_height;
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static GLuint m_framebuffer_texture[3];
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static GLint drawFboId = 0;
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static int calldepth = 0;
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void R_InitFrameBuffer()
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{
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m_framebuffer_width = glConfig.vidWidth;
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m_framebuffer_height = glConfig.vidHeight;
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for (int i = 0; i < 3; ++i) {
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// Create texture
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glGenTextures(1, &m_framebuffer_texture[i]);
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glBindTexture(GL_TEXTURE_2D, m_framebuffer_texture[i]);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_framebuffer_width, m_framebuffer_height, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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// Create framebuffer
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glGenFramebuffers(1, &m_framebuffer[i]);
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// Create renderbuffer
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glGenRenderbuffers(1, &m_depthbuffer[i]);
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glBindRenderbuffer(GL_RENDERBUFFER, m_depthbuffer[i]);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8_OES, m_framebuffer_width,
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m_framebuffer_height);
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}
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}
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void R_FrameBufferStart()
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{
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if (calldepth == 0) {
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glGetIntegerv(GL_FRAMEBUFFER_BINDING, &drawFboId);
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}
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// Render to framebuffer
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glBindFramebuffer(GL_FRAMEBUFFER, m_framebuffer[calldepth]);
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glBindRenderbuffer(GL_RENDERBUFFER, 0);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_framebuffer_texture[calldepth], 0);
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// Attach combined depth+stencil
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, m_depthbuffer[calldepth]);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_depthbuffer[calldepth]);
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GLenum result = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if(result != GL_FRAMEBUFFER_COMPLETE)
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{
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common->Error( "Error binding Framebuffer: %i\n", result );
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}
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glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
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qglClear( GL_COLOR_BUFFER_BIT );
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calldepth++;
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}
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void R_FrameBufferEnd()
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{
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calldepth--;
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if (calldepth == 0) {
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glBindFramebuffer(GL_FRAMEBUFFER, drawFboId);
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} else {
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glBindFramebuffer(GL_FRAMEBUFFER, m_framebuffer[calldepth-1]);
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}
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}
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