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Diffstat (limited to '')
| -rw-r--r-- | src/video_core/renderer_vulkan/vk_rasterizer.cpp | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp index 1ceffa718..a9334e101 100644 --- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp +++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp @@ -60,10 +60,19 @@ struct DrawParams { VkViewport GetViewportState(const Device& device, const Maxwell& regs, size_t index, float scale) { const auto& src = regs.viewport_transform[index]; - const float x = (src.translate_x - src.scale_x) * scale; - const float width = src.scale_x * 2.0f * scale; - float y = (src.translate_y - src.scale_y) * scale; - float height = src.scale_y * 2.0f * scale; + const auto conv = [scale](float value) { + float new_value = value * scale; + if (scale < 1.0f) { + bool sign = std::signbit(new_value); + new_value = std::round(std::abs(new_value)); + new_value = sign ? -new_value : new_value; + } + return new_value; + }; + const float x = conv(src.translate_x - src.scale_x); + const float width = conv(src.scale_x * 2.0f); + float y = conv(src.translate_y - src.scale_y); + float height = conv(src.scale_y * 2.0f); if (regs.screen_y_control.y_negate) { y += height; height = -height; @@ -91,8 +100,13 @@ VkRect2D GetScissorState(const Maxwell& regs, size_t index, u32 up_scale = 1, u3 if (value == 0) { return 0U; } + const u32 upset = value * up_scale; + u32 acumm = 0; + if ((up_scale >> down_shift) == 0) { + acumm = upset & 0x1; + } const u32 converted_value = (value * up_scale) >> down_shift; - return std::max<u32>(converted_value, 1U); + return std::max<u32>(converted_value + acumm, 1U); }; if (src.enable) { scissor.offset.x = static_cast<s32>(scale_up(src.min_x)); |