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GetScreenScaleFactors ignores multisample scale when using Xbox the fixed function pipeline.

This commit is contained in:
Anthony 2021-02-08 03:24:41 +13:00
parent d26e028125
commit d7c9e78195
1 changed files with 16 additions and 12 deletions
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28
src/core/hle/D3D8/Direct3D9/Direct3D9.cpp
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@ -2878,6 +2878,20 @@ void GetMultiSampleScaleRaw(float& xScale, float& yScale) {
// Titles can render pre-transformed vertices to screen space (using XYZRHW vertex position data or otherwise)
// so we need to know the space they are in to interpret it correctly
void GetScreenScaleFactors(float& scaleX, float& scaleY) {
scaleX = 1;
scaleY = 1;
// With fixed-function mode, titles don't have to account for these scale factors,
// so we don't have reverse them.
// Test cases:
// Fixed-func passthrough, title does not apply SSAA scale:
// - Shenmue II (Menu)
// Fixed-func passthrough, title does not apply backbuffer scale:
// - Antialias sample(background gradient)
if (g_Xbox_VertexShaderMode != VertexShaderMode::ShaderProgram) {
return;
}
// Example:
// NFS HP2 renders in-game at 640*480
// The title uses MSAA, which increases the rendertarget size, but leaves the screen scale unaffected
@ -2894,23 +2908,13 @@ void GetScreenScaleFactors(float& scaleX, float& scaleY) {
if (isMultiSampleEnabled && isSuperSampleMode) {
GetMultiSampleScaleRaw(scaleX, scaleY);
}
else {
scaleX = 1;
scaleY = 1;
}
// Account for the backbuffer scale
// Fixed-function rendering doesn't have to account for backbuffer scale
// So XYZRHW passthrough vertex positions will not be pre-scaled by the title
// Test cases:
// Fixed function passthrough (title does not apply backbuffer scale):
// - Antialias sample (background gradient)
// Vertex program passthrough equivalent (title does apply backbuffer scale):
// - NFS:HP2 (car speed and other in-game UI elements)
if (g_Xbox_VertexShaderMode != VertexShaderMode::Passthrough) {
scaleX *= g_Xbox_BackbufferScaleX;
scaleY *= g_Xbox_BackbufferScaleY;
}
scaleX *= g_Xbox_BackbufferScaleX;
scaleY *= g_Xbox_BackbufferScaleY;
}
// Get the raw subpixel dimensions of the rendertarget buffer