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ryujinx-final/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/TexelFetchScale_fp.glsl
gdkchan 0f6ec446ea
Replace BGRA and scale uniforms with a uniform block (#2496)
* Replace BGRA and scale uniforms with a uniform block

* Setting the data again on program change is no longer needed

* Optimize and resolve some warnings

* Avoid redundant support buffer updates

* Some optimizations to BindBuffers (now inlined)

* Unify render scale arrays
2021-08-11 21:33:43 +02:00

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GLSL

ivec2 Helper_TexelFetchScale(ivec2 inputVec, int samplerIndex)
{
float scale = s_render_scale[1 + samplerIndex];
if (scale == 1.0)
{
return inputVec;
}
if (scale < 0.0) // If less than 0, try interpolate between texels by using the screen position.
{
return ivec2(vec2(inputVec) * (-scale) + mod(gl_FragCoord.xy, -scale));
}
else
{
return ivec2(vec2(inputVec) * scale);
}
}
int Helper_TextureSizeUnscale(int size, int samplerIndex)
{
float scale = abs(s_render_scale[1 + samplerIndex]);
if (scale == 1.0)
{
return size;
}
return int(float(size) / scale);
}