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Add FBO for depth buffer.

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This commit is contained in:
Sergey Lipskiy 2013-11-12 14:35:26 +07:00
parent 8e3e41356a
commit 00c12e2d1d
3 changed files with 11 additions and 0 deletions
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3
DepthBuffer.cpp
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@ -67,6 +67,8 @@ void DepthBuffer_Remove( DepthBuffer *buffer )
if (buffer->renderbuf != 0)
ogl_glDeleteRenderbuffers(1, &buffer->renderbuf);
if (buffer->fbo != 0)
ogl_glDeleteFramebuffers(1, &buffer->fbo);
if (buffer->depth_texture != NULL)
TextureCache_Remove( buffer->depth_texture );
free( buffer );
@ -96,6 +98,7 @@ DepthBuffer *DepthBuffer_AddTop()
newtop->lower = depthBuffer.top;
newtop->higher = NULL;
newtop->renderbuf = 0;
newtop->fbo = 0;
if (depthBuffer.top)
depthBuffer.top->higher = newtop;

1
DepthBuffer.h
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@ -10,6 +10,7 @@ struct DepthBuffer
u32 address, width;
GLuint renderbuf;
CachedTexture *depth_texture;
GLuint fbo;
};
struct DepthBufferInfo

7
FrameBuffer.cpp
View File

@ -345,6 +345,13 @@ void _initDepthTexture()
glTexImage2D(GL_TEXTURE_2D, 0, depthTextureInternalFormat, depthBuffer.top->depth_texture->realWidth, depthBuffer.top->depth_texture->realHeight, 0, GL_RED, depthTextureType, NULL);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glBindTexture( GL_TEXTURE_2D, 0);
ogl_glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
ogl_glGenFramebuffers(1, &depthBuffer.top->fbo);
ogl_glBindFramebuffer(GL_DRAW_FRAMEBUFFER, depthBuffer.top->fbo);
ogl_glFramebufferTexture(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, depthBuffer.top->depth_texture->glName, 0);
ogl_glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
ogl_glBindFramebuffer(GL_DRAW_FRAMEBUFFER, frameBuffer.top->fbo);
frameBuffer.top->pDepthBuffer = depthBuffer.top;
void GLSL_ClearDepthBuffer();
GLSL_ClearDepthBuffer();