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GPU/HW: Eliminate CPU round trip on oversized VRAM writes

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This commit is contained in:
Connor McLaughlin
2020-07-11 20:18:07 +10:00
parent e144392187
commit d1a2ebd8f3
6 changed files with 67 additions and 113 deletions
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26
src/core/gpu_hw_vulkan.cpp
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@ -1080,17 +1080,8 @@ void GPU_HW_Vulkan::FillVRAM(u32 x, u32 y, u32 width, u32 height, u32 color)
void GPU_HW_Vulkan::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data)
{
if ((x + width) > VRAM_WIDTH || (y + height) > VRAM_HEIGHT)
{
// CPU round trip if oversized for now.
Log_WarningPrintf("Oversized VRAM update (%u-%u, %u-%u), CPU round trip", x, x + width, y, y + height);
ReadVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT);
GPU::UpdateVRAM(x, y, width, height, data);
UpdateVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT, m_vram_shadow.data());
return;
}
GPU_HW::UpdateVRAM(x, y, width, height, data);
const Common::Rectangle<u32> bounds = GetVRAMTransferBounds(x, y, width, height);
GPU_HW::UpdateVRAM(bounds.left, bounds.top, bounds.GetWidth(), bounds.GetHeight(), data);
const u32 data_size = width * height * sizeof(u16);
const u32 alignment = std::max<u32>(sizeof(u16), static_cast<u32>(g_vulkan_context->GetTexelBufferAlignment()));
@ -1114,13 +1105,7 @@ void GPU_HW_Vulkan::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void*
BeginVRAMRenderPass();
VkCommandBuffer cmdbuf = g_vulkan_context->GetCurrentCommandBuffer();
const VRAMWriteUBOData uniforms = {x,
y,
width,
height,
start_index,
m_GPUSTAT.set_mask_while_drawing ? 0x8000u : 0x00,
GetCurrentNormalizedVertexDepth()};
const VRAMWriteUBOData uniforms = GetVRAMWriteUBOData(x, y, width, height, start_index);
vkCmdPushConstants(cmdbuf, m_vram_write_pipeline_layout, VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof(uniforms),
&uniforms);
vkCmdBindPipeline(cmdbuf, VK_PIPELINE_BIND_POINT_GRAPHICS,
@ -1129,8 +1114,9 @@ void GPU_HW_Vulkan::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void*
&m_vram_write_descriptor_set, 0, nullptr);
// the viewport should already be set to the full vram, so just adjust the scissor
Vulkan::Util::SetScissor(cmdbuf, x * m_resolution_scale, y * m_resolution_scale, width * m_resolution_scale,
height * m_resolution_scale);
const Common::Rectangle<u32> scaled_bounds = bounds * m_resolution_scale;
Vulkan::Util::SetScissor(cmdbuf, scaled_bounds.left, scaled_bounds.top, scaled_bounds.GetWidth(),
scaled_bounds.GetHeight());
vkCmdDraw(cmdbuf, 3, 1, 0, 0);
RestoreGraphicsAPIState();