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[D3D12] Write pixel, not sample, position to ps_param_gen

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Triang3l
2018-10-24 17:06:41 +03:00
parent e68a0c37b9
commit cabffea4d7
2 changed files with 33 additions and 6 deletions
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8
src/xenia/gpu/d3d12/d3d12_command_processor.cc
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@@ -1739,7 +1739,10 @@ void D3D12CommandProcessor::UpdateSystemConstantValues(
float ndc_offset_x = (pa_cl_vte_cntl & (1 << 1)) ? 0.0f : -1.0f;
float ndc_offset_y = (pa_cl_vte_cntl & (1 << 3)) ? 0.0f : 1.0f;
float ndc_offset_z = gl_clip_space_def ? 0.5f : 0.0f;
float pixel_half_pixel_offset = 0.0f;
// Like in OpenGL - VPOS giving pixel centers.
// TODO(Triang3l): Check if ps_param_gen should give center positions in
// OpenGL mode on the Xbox 360.
float pixel_half_pixel_offset = 0.5f;
if (FLAGS_d3d12_half_pixel_offset && !(pa_su_vtx_cntl & (1 << 0))) {
// Signs are hopefully correct here, tested in GTA IV on both clearing
// (without a viewport) and drawing things near the edges of the screen.
@@ -1757,7 +1760,8 @@ void D3D12CommandProcessor::UpdateSystemConstantValues(
} else {
ndc_offset_y -= 1.0f / 2560.0f;
}
pixel_half_pixel_offset = -0.5f;
// Like in Direct3D 9 - VPOS giving the top-left corner.
pixel_half_pixel_offset = 0.0f;
}
dirty |= system_constants_.ndc_scale[0] != ndc_scale_x;
dirty |= system_constants_.ndc_scale[1] != ndc_scale_y;