Mercurial > fife-parpg
diff engine/core/video/opengl/renderbackendopengl.cpp @ 634:5f381fa34769
* Added the clearBackBuffer() function to the renderbackends.
* Renamed setClearScreen() to setClearBackBuffer()
* The SDL render backend now honors what was set with setClearBackBuffer()
* Documented testRenderedViewPort()
* The OpenGL backend no longer clears the screen every frame by default. testRenderedViewPort() takes care of clearing the screen for now. Note: if the user overrides the default and enables clearing of the backbuffer that it may be cleared twice in one frame (OpenGL only)!
| author | prock@33b003aa-7bff-0310-803a-e67f0ece8222 |
|---|---|
| date | Wed, 06 Oct 2010 15:49:53 +0000 |
| parents | 46b95d06c8c2 |
| children | 855ad500f991 |
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--- a/engine/core/video/opengl/renderbackendopengl.cpp Wed Oct 06 14:09:24 2010 +0000 +++ b/engine/core/video/opengl/renderbackendopengl.cpp Wed Oct 06 15:49:53 2010 +0000 @@ -43,7 +43,7 @@ m_rgba_format = *(testsurface->format); SDL_FreeSurface(testsurface); - m_clear = true; + m_clear = false; } const std::string& RenderBackendOpenGL::getName() const { @@ -64,6 +64,11 @@ SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); // temporary hack } + void RenderBackendOpenGL::clearBackBuffer() { + GLDisable flag(GL_SCISSOR_TEST); + glClear(GL_COLOR_BUFFER_BIT); + } + Image* RenderBackendOpenGL::createMainScreen(unsigned int width, unsigned int height, unsigned char bitsPerPixel, bool fs, const std::string& title, const std::string& icon) { delete m_screen; m_screen = 0; @@ -134,8 +139,7 @@ void RenderBackendOpenGL::startFrame() { if(m_clear) { - GLDisable flag(GL_SCISSOR_TEST); - glClear(GL_COLOR_BUFFER_BIT); + clearBackBuffer(); } }