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GL: Added default back buffer FBO.

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This commit is contained in:
bkaradzic 2013-07-22 21:20:43 -07:00
parent d927f59bd8
commit 5707309e6f
1 changed files with 24 additions and 24 deletions
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48
src/renderer_gl.cpp
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@ -284,8 +284,6 @@ namespace bgfx
} }
#endif // BGFX_CONFIG_RENDERER_OPENGL #endif // BGFX_CONFIG_RENDERER_OPENGL
extern GLuint m_backBufferFbo;
struct RendererContext struct RendererContext
{ {
RendererContext() RendererContext()
@ -303,6 +301,7 @@ namespace bgfx
, m_postSwapBuffers(NULL) , m_postSwapBuffers(NULL)
, m_hash( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT) , m_hash( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
, m_backBufferFbo(0) , m_backBufferFbo(0)
, m_msaaBackBufferFbo(0)
{ {
m_rt.idx = invalidHandle; m_rt.idx = invalidHandle;
memset(&m_resolution, 0, sizeof(m_resolution) ); memset(&m_resolution, 0, sizeof(m_resolution) );
@ -342,7 +341,7 @@ namespace bgfx
if (_rt.idx == invalidHandle) if (_rt.idx == invalidHandle)
{ {
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
} }
else else
{ {
@ -362,22 +361,22 @@ namespace bgfx
#if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
if (1 < _msaa) if (1 < _msaa)
{ {
GL_CHECK(glGenFramebuffers(1, &m_backBufferFbo) ); GL_CHECK(glGenFramebuffers(1, &m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glGenRenderbuffers(3, m_backBufferRbos) ); GL_CHECK(glGenRenderbuffers(3, m_msaaBackBufferRbos) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_backBufferRbos[0]) ); GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_RGBA8, _width, _height) ); GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_RGBA8, _width, _height) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_backBufferRbos[1]) ); GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_DEPTH24_STENCIL8, _width, _height) ); GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_DEPTH24_STENCIL8, _width, _height) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_backBufferRbos[0]) ); GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_backBufferRbos[1]) ); GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
BX_CHECK(GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER) BX_CHECK(GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER)
, "glCheckFramebufferStatus failed 0x%08x" , "glCheckFramebufferStatus failed 0x%08x"
, glCheckFramebufferStatus(GL_FRAMEBUFFER) , glCheckFramebufferStatus(GL_FRAMEBUFFER)
); );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
} }
#else #else
BX_UNUSED(_width); BX_UNUSED(_width);
@ -389,11 +388,11 @@ namespace bgfx
void destroyMsaaFbo() void destroyMsaaFbo()
{ {
#if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
if (0 != m_backBufferFbo) if (0 != m_msaaBackBufferFbo)
{ {
GL_CHECK(glDeleteFramebuffers(1, &m_backBufferFbo) ); GL_CHECK(glDeleteFramebuffers(1, &m_msaaBackBufferFbo) );
GL_CHECK(glDeleteRenderbuffers(3, m_backBufferRbos) ); GL_CHECK(glDeleteRenderbuffers(3, m_msaaBackBufferRbos) );
m_backBufferFbo = 0; m_msaaBackBufferFbo = 0;
} }
#endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
} }
@ -401,10 +400,10 @@ namespace bgfx
void blitMsaaFbo() void blitMsaaFbo()
{ {
#if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #if BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
if (0 != m_backBufferFbo) if (0 != m_msaaBackBufferFbo)
{ {
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0) ); GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0) );
uint32_t width = m_resolution.m_width; uint32_t width = m_resolution.m_width;
uint32_t height = m_resolution.m_height; uint32_t height = m_resolution.m_height;
@ -419,7 +418,7 @@ namespace bgfx
, GL_COLOR_BUFFER_BIT , GL_COLOR_BUFFER_BIT
, GL_LINEAR , GL_LINEAR
) ); ) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
} }
#endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
} }
@ -616,7 +615,8 @@ namespace bgfx
uint64_t m_hash; uint64_t m_hash;
GLuint m_backBufferFbo; GLuint m_backBufferFbo;
GLuint m_backBufferRbos[2]; GLuint m_msaaBackBufferFbo;
GLuint m_msaaBackBufferRbos[2];
GlContext m_glctx; GlContext m_glctx;
const char* m_vendor; const char* m_vendor;
@ -1930,7 +1930,7 @@ namespace bgfx
); );
} }
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_msaaBackBufferFbo) );
} }
void RenderTarget::destroy() void RenderTarget::destroy()
@ -1972,7 +1972,7 @@ namespace bgfx
, GL_COLOR_BUFFER_BIT , GL_COLOR_BUFFER_BIT
, GL_LINEAR , GL_LINEAR
) ); ) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_msaaBackBufferFbo) );
#endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3 #endif // BGFX_CONFIG_RENDERER_OPENGL|BGFX_CONFIG_RENDERER_OPENGLES3
} }
@ -2067,7 +2067,7 @@ namespace bgfx
uint32_t width = s_renderCtx.m_resolution.m_width; uint32_t width = s_renderCtx.m_resolution.m_width;
uint32_t height = s_renderCtx.m_resolution.m_height; uint32_t height = s_renderCtx.m_resolution.m_height;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_backBufferFbo) );
GL_CHECK(glViewport(0, 0, width, height) ); GL_CHECK(glViewport(0, 0, width, height) );
GL_CHECK(glDisable(GL_STENCIL_TEST) ); GL_CHECK(glDisable(GL_STENCIL_TEST) );
@ -2714,7 +2714,7 @@ namespace bgfx
if (0 == (m_render->m_debug&BGFX_DEBUG_IFH) ) if (0 == (m_render->m_debug&BGFX_DEBUG_IFH) )
{ {
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_backBufferFbo) ); GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderCtx.m_msaaBackBufferFbo) );
for (uint32_t item = 0, numItems = m_render->m_num; item < numItems; ++item) for (uint32_t item = 0, numItems = m_render->m_num; item < numItems; ++item)
{ {