ShuriZma
/
xenia-canary
mirror of https://github.com/xenia-canary/xenia-canary.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[D3D12] Half-pixel offset improvement

This commit is contained in:
Triang3l 2018-08-01 13:26:39 +03:00
parent 6d6e803c7d
commit 235799eecd
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/xenia/gpu/d3d12/d3d12_command_processor.cc
View File

@ -888,7 +888,7 @@ void D3D12CommandProcessor::UpdateSystemConstantValues(Endian index_endian) {
// Z scale/offset is to convert from OpenGL NDC to Direct3D NDC if needed.
// Also apply half-pixel offset to reproduce Direct3D 9 rasterization rules.
// TODO(Triang3l): Check if pixel coordinates need to offset depending on a
// different register.
// different register (and if there's such register at all).
bool gl_clip_space_def =
!(pa_cl_clip_cntl & (1 << 19)) && (pa_cl_vte_cntl & (1 << 4));
float ndc_scale_x = (pa_cl_vte_cntl & (1 << 0)) ? 1.0f : 1.0f / 1280.0f;
@ -898,7 +898,7 @@ void D3D12CommandProcessor::UpdateSystemConstantValues(Endian index_endian) {
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;
if (pa_su_vtx_cntl & (1 << 0)) {
if (!(pa_su_vtx_cntl & (1 << 0))) {
if (pa_cl_vte_cntl & (1 << 0)) {
float viewport_scale_x = regs[XE_GPU_REG_PA_CL_VPORT_XSCALE].f32;
if (viewport_scale_x != 0.0f) {
@ -910,10 +910,10 @@ void D3D12CommandProcessor::UpdateSystemConstantValues(Endian index_endian) {
if (pa_cl_vte_cntl & (1 << 2)) {
float viewport_scale_y = regs[XE_GPU_REG_PA_CL_VPORT_YSCALE].f32;
if (viewport_scale_y != 0.0f) {
ndc_offset_y += 0.5f / viewport_scale_y;
ndc_offset_y -= 0.5f / viewport_scale_y;
}
} else {
ndc_offset_y += 1.0f / 2560.0f;
ndc_offset_y -= 1.0f / 2560.0f;
}
pixel_half_pixel_offset = -0.5f;
}