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[GPU] Separate GetHostViewportInfo X and Y bounds

This commit is contained in:
Triang3l 2020-11-18 12:27:36 +03:00
parent 49dc0e9c39
commit 99bb82fd1c
3 changed files with 12 additions and 10 deletions
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3
src/xenia/gpu/d3d12/d3d12_command_processor.cc
View File

@ -2016,7 +2016,8 @@ bool D3D12CommandProcessor::IssueDraw(xenos::PrimitiveType primitive_type,
}
draw_util::ViewportInfo viewport_info;
draw_util::GetHostViewportInfo(regs, float(pixel_size_x), float(pixel_size_y),
true, float(D3D12_VIEWPORT_BOUNDS_MAX), false,
true, float(D3D12_VIEWPORT_BOUNDS_MAX),
float(D3D12_VIEWPORT_BOUNDS_MAX), false,
viewport_info);
draw_util::Scissor scissor;
draw_util::GetScissor(regs, scissor);

17
src/xenia/gpu/draw_util.cc
View File

@ -113,11 +113,12 @@ int32_t FloatToD3D11Fixed16p8(float f32) {
void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
float pixel_size_y, bool origin_bottom_left,
float xy_max, bool allow_reverse_z,
float x_max, float y_max, bool allow_reverse_z,
ViewportInfo& viewport_info_out) {
assert_true(pixel_size_x >= 1.0f);
assert_true(pixel_size_y >= 1.0f);
assert_true(xy_max >= 1.0f);
assert_true(x_max >= 1.0f);
assert_true(y_max >= 1.0f);
// PA_CL_VTE_CNTL contains whether offsets and scales are enabled.
// http://www.x.org/docs/AMD/old/evergreen_3D_registers_v2.pdf
@ -167,9 +168,9 @@ void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
// Keep the viewport in the positive quarter-plane for simplicity of
// clamping to the maximum supported bounds.
float cutoff_left = std::fmax(-viewport_left, 0.0f);
float cutoff_right = std::fmax(viewport_right - xy_max, 0.0f);
float cutoff_right = std::fmax(viewport_right - x_max, 0.0f);
viewport_left = std::fmax(viewport_left, 0.0f);
viewport_right = std::fmin(viewport_right, xy_max);
viewport_right = std::fmin(viewport_right, x_max);
viewport_width = viewport_right - viewport_left;
if (viewport_width > size_min) {
ndc_scale_x =
@ -194,7 +195,7 @@ void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
// enabled, via the shader.
viewport_left = 0.0f;
viewport_width = std::min(
float(xenos::kTexture2DCubeMaxWidthHeight) * pixel_size_x, xy_max);
float(xenos::kTexture2DCubeMaxWidthHeight) * pixel_size_x, x_max);
ndc_scale_x = (2.0f * pixel_size_x) / viewport_width;
ndc_offset_x = viewport_offset_x * ndc_scale_x - 1.0f;
}
@ -205,9 +206,9 @@ void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
viewport_top = viewport_offset_y * pixel_size_y - viewport_scale_y_abs;
float viewport_bottom = viewport_top + viewport_scale_y_abs * 2.0f;
float cutoff_top = std::fmax(-viewport_top, 0.0f);
float cutoff_bottom = std::fmax(viewport_bottom - xy_max, 0.0f);
float cutoff_bottom = std::fmax(viewport_bottom - y_max, 0.0f);
viewport_top = std::fmax(viewport_top, 0.0f);
viewport_bottom = std::fmin(viewport_bottom, xy_max);
viewport_bottom = std::fmin(viewport_bottom, y_max);
viewport_height = viewport_bottom - viewport_top;
if (viewport_height > size_min) {
ndc_scale_y =
@ -227,7 +228,7 @@ void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
}
} else {
viewport_height = std::min(
float(xenos::kTexture2DCubeMaxWidthHeight) * pixel_size_y, xy_max);
float(xenos::kTexture2DCubeMaxWidthHeight) * pixel_size_y, y_max);
ndc_scale_y = (2.0f * pixel_size_y) / viewport_height;
ndc_offset_y = viewport_offset_y * ndc_scale_y - 1.0f;
}

2
src/xenia/gpu/draw_util.h
View File

@ -52,7 +52,7 @@ struct ViewportInfo {
// Direct3D clip space with 0...W Z rather than -W...W.
void GetHostViewportInfo(const RegisterFile& regs, float pixel_size_x,
float pixel_size_y, bool origin_bottom_left,
float xy_max, bool allow_reverse_z,
float x_max, float y_max, bool allow_reverse_z,
ViewportInfo& viewport_info_out);
struct Scissor {