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GPU: Copy-less processing from DMA

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This commit is contained in:
Connor McLaughlin
2019-10-13 17:33:20 +10:00
parent ec8c5d4bb6
commit 7448cbaf9d
4 changed files with 143 additions and 112 deletions
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30
src/core/gpu_hw.cpp
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@ -15,7 +15,7 @@ void GPU_HW::Reset()
m_batch = {};
}
void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices)
void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices, const u32* command_ptr)
{
const u32 texpage =
ZeroExtend32(m_render_state.texpage_attribute) | (ZeroExtend32(m_render_state.texlut_attribute) << 16);
@ -38,16 +38,16 @@ void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices)
for (u32 i = 0; i < num_vertices; i++)
{
HWVertex hw_vert;
hw_vert.color = (shaded && i > 0) ? (m_GP0_command[buffer_pos++] & UINT32_C(0x00FFFFFF)) : first_color;
hw_vert.color = (shaded && i > 0) ? (command_ptr[buffer_pos++] & UINT32_C(0x00FFFFFF)) : first_color;
const VertexPosition vp{m_GP0_command[buffer_pos++]};
const VertexPosition vp{command_ptr[buffer_pos++]};
hw_vert.x = vp.x;
hw_vert.y = vp.y;
hw_vert.texpage = texpage;
if (textured)
{
hw_vert.texcoord = Truncate16(m_GP0_command[buffer_pos++]);
hw_vert.texcoord = Truncate16(command_ptr[buffer_pos++]);
// auto [u, v] = HWVertex::DecodeTexcoord(hw_vert.texcoord);
// u = (u & (~(m_render_state.texture_window_mask_x * 8))) | ((m_render_state.texture_window_offset_x &
// m_render_state.texture_window_mask_x) * 8); v = (v & (~(m_render_state.texture_window_mask_y * 8))) |
@ -80,11 +80,11 @@ void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices)
u32 buffer_pos = 1;
const bool textured = rc.texture_enable;
const u32 color = rc.color_for_first_vertex;
const VertexPosition vp{m_GP0_command[buffer_pos++]};
const VertexPosition vp{command_ptr[buffer_pos++]};
const s32 pos_left = vp.x;
const s32 pos_top = vp.y;
const auto [tex_left, tex_top] =
HWVertex::DecodeTexcoord(rc.texture_enable ? Truncate16(m_GP0_command[buffer_pos++]) : 0);
HWVertex::DecodeTexcoord(rc.texture_enable ? Truncate16(command_ptr[buffer_pos++]) : 0);
s32 rectangle_width;
s32 rectangle_height;
switch (rc.rectangle_size)
@ -102,8 +102,8 @@ void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices)
rectangle_height = 16;
break;
default:
rectangle_width = static_cast<s32>(m_GP0_command[buffer_pos] & UINT32_C(0xFFFF));
rectangle_height = static_cast<s32>(m_GP0_command[buffer_pos] >> 16);
rectangle_width = static_cast<s32>(command_ptr[buffer_pos] & UINT32_C(0xFFFF));
rectangle_height = static_cast<s32>(command_ptr[buffer_pos] >> 16);
break;
}
@ -134,8 +134,8 @@ void GPU_HW::LoadVertices(RenderCommand rc, u32 num_vertices)
u32 buffer_pos = 1;
for (u32 i = 0; i < num_vertices; i++)
{
const u32 color = (shaded && i > 0) ? (m_GP0_command[buffer_pos++] & UINT32_C(0x00FFFFFF)) : first_color;
const VertexPosition vp{m_GP0_command[buffer_pos++]};
const u32 color = (shaded && i > 0) ? (command_ptr[buffer_pos++] & UINT32_C(0x00FFFFFF)) : first_color;
const VertexPosition vp{command_ptr[buffer_pos++]};
m_batch.vertices.push_back(HWVertex{vp.x.GetValue(), vp.y.GetValue(), color});
}
}
@ -480,7 +480,7 @@ GPU_HW::HWRenderBatch::Primitive GPU_HW::GetPrimitiveForCommand(RenderCommand rc
void GPU_HW::InvalidateVRAMReadCache() {}
void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices)
void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices, const u32* command_ptr)
{
if (rc.texture_enable)
{
@ -490,15 +490,15 @@ void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices)
case Primitive::Polygon:
{
if (rc.shading_enable)
m_render_state.SetFromPolygonTexcoord(m_GP0_command[2], m_GP0_command[5]);
m_render_state.SetFromPolygonTexcoord(command_ptr[2], command_ptr[5]);
else
m_render_state.SetFromPolygonTexcoord(m_GP0_command[2], m_GP0_command[4]);
m_render_state.SetFromPolygonTexcoord(command_ptr[2], command_ptr[4]);
}
break;
case Primitive::Rectangle:
{
m_render_state.SetFromRectangleTexcoord(m_GP0_command[2]);
m_render_state.SetFromRectangleTexcoord(command_ptr[2]);
m_render_state.SetFromPageAttribute(Truncate16(m_GPUSTAT.bits));
}
break;
@ -586,5 +586,5 @@ void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices)
m_render_state.ClearTextureWindowChangedFlag();
}
LoadVertices(rc, num_vertices);
LoadVertices(rc, num_vertices, command_ptr);
}