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FrameBuffer creation flags replace booleans

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Instead of many creation options (with alpha, with multisampling, etc) use a single flag with boolean operators. Creation of the new mipmap flag for FrameBuffer, rendering the current FBO into multiple sub-resolutions.
This commit is contained in:
Bruno Herbelin
2022-05-22 15:14:10 +02:00
parent 7867aac55f
commit d695aa9f57
15 changed files with 151 additions and 77 deletions
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5
RenderingManager.cpp
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@@ -522,12 +522,13 @@ glm::ivec2 Rendering::getGPUMemoryInformation()
}
bool Rendering::shouldHaveEnoughMemory(glm::vec3 resolution, bool useAlpha, bool multiSampling)
bool Rendering::shouldHaveEnoughMemory(glm::vec3 resolution, int flags)
{
glm::ivec2 RAM = getGPUMemoryInformation();
// approximation of RAM needed for such FBO
GLint framebufferMemoryInKB = ( resolution.x * resolution.x * (useAlpha?4:3) * (multiSampling?2:1) ) / 1024;
GLint framebufferMemoryInKB = ( resolution.x * resolution.x *
((flags & FrameBuffer::FrameBuffer_alpha)?4:3) * ((flags & FrameBuffer::FrameBuffer_multisampling)?2:1) ) / 1024;
return ( RAM.x > framebufferMemoryInKB * 3 );
}