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Support software renderer upscaling engine-side in sdlayer and sdlayer12 with various scaling factors (beyond just pixel doubling).

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When glsurface is available, use GL to upscale the render buffer.
Additionally, fix build issues with sdlayer12 introduced by GLAD changes (r6656).

git-svn-id: https://svn.eduke32.com/eduke32@6939 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
pogokeen 2018-07-14 21:36:44 +00:00
parent 1b932fddaf
commit 1df7127609
27 changed files with 475 additions and 357 deletions
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4
source/build/src/glsurface.cpp
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@ -56,14 +56,14 @@ static GLuint compileShader(GLenum shaderType, const char* const source)
return shaderID;
}
bool glsurface_initialize(vec2_t inputBufferResolution)
bool glsurface_initialize(vec2_t bufferResolution)
{
if (buffer)
glsurface_destroy();
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
bufferRes = inputBufferResolution;
bufferRes = bufferResolution;
buffer = Xaligned_alloc(16, bufferRes.x * bufferRes.y);
glGenBuffers(1, &quadVertsID);