mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2024-11-26 15:45:42 +00:00
GPU: Split command handlers into seperate file
This commit is contained in:
Connor McLaughlin
parent
246b17454e
commit
baf97cb864
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@ -40,6 +40,7 @@
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<ClCompile Include="cpu_core.cpp" />
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<ClCompile Include="cpu_disasm.cpp" />
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<ClCompile Include="digital_controller.cpp" />
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<ClCompile Include="gpu_commands.cpp" />
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<ClCompile Include="gte.cpp" />
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<ClCompile Include="dma.cpp" />
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<ClCompile Include="gpu.cpp" />
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@ -21,6 +21,7 @@
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<ClCompile Include="mdec.cpp" />
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<ClCompile Include="memory_card.cpp" />
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<ClCompile Include="settings.cpp" />
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<ClCompile Include="gpu_commands.cpp" />
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="types.h" />
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340
src/core/gpu.cpp
340
src/core/gpu.cpp
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@ -9,9 +9,6 @@
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#include <imgui.h>
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Log_SetChannel(GPU);
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static u32 s_cpu_to_vram_dump_id = 1;
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static u32 s_vram_to_cpu_dump_id = 1;
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GPU::GPU() = default;
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GPU::~GPU() = default;
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@ -250,6 +247,7 @@ void GPU::DMAWrite(const u32* words, u32 word_count)
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{
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case DMADirection::CPUtoGP0:
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{
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#if 0
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// partial command buffered? have to go through the slow path
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if (!m_GP0_buffer.empty())
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{
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@ -292,6 +290,10 @@ void GPU::DMAWrite(const u32* words, u32 word_count)
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}
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UpdateGPUSTAT();
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#else
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for (u32 i = 0; i < word_count; i++)
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WriteGP0(words[i]);
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#endif
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}
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break;
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@ -433,7 +435,8 @@ void GPU::WriteGP0(u32 value)
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Assert(m_GP0_buffer.size() <= 1048576);
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const u32* command_ptr = m_GP0_buffer.data();
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if (HandleGP0Command(command_ptr, static_cast<u32>(m_GP0_buffer.size())))
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const u32 command = m_GP0_buffer[0] >> 24;
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if ((this->*s_GP0_command_handler_table[command])(command_ptr, static_cast<u32>(m_GP0_buffer.size())))
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{
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DebugAssert((command_ptr - m_GP0_buffer.data()) == m_GP0_buffer.size());
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m_GP0_buffer.clear();
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@ -442,130 +445,6 @@ void GPU::WriteGP0(u32 value)
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UpdateGPUSTAT();
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}
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bool GPU::HandleGP0Command(const u32*& command_ptr, u32 command_size)
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{
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const u8 command = Truncate8(command_ptr[0] >> 24);
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if (command >= 0x20 && command <= 0x7F)
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{
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// Draw polygon
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return HandleRenderCommand(command_ptr, command_size);
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}
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else
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{
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const u32 param = command_ptr[0] & UINT32_C(0x00FFFFFF);
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switch (command)
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{
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case 0x00: // NOP
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case 0x01: // Clear cache
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command_ptr++;
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return true;
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case 0x02: // Fill Rectangle
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return HandleFillRectangleCommand(command_ptr, command_size);
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case 0xA0: // Copy Rectangle CPU->VRAM
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return HandleCopyRectangleCPUToVRAMCommand(command_ptr, command_size);
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case 0xC0: // Copy Rectangle VRAM->CPU
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return HandleCopyRectangleVRAMToCPUCommand(command_ptr, command_size);
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case 0x80: // Copy Rectangle VRAM->VRAM
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return HandleCopyRectangleVRAMToVRAMCommand(command_ptr, command_size);
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case 0xE1: // Set draw mode
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{
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// 0..10 bits match GPUSTAT
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const u32 MASK = ((UINT32_C(1) << 11) - 1);
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m_GPUSTAT.bits = (m_GPUSTAT.bits & ~MASK) | param & MASK;
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m_GPUSTAT.texture_disable = (param & (UINT32_C(1) << 11)) != 0;
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m_render_state.texture_x_flip = (param & (UINT32_C(1) << 12)) != 0;
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m_render_state.texture_y_flip = (param & (UINT32_C(1) << 13)) != 0;
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Log_DebugPrintf("Set draw mode %08X", param);
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command_ptr++;
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return true;
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}
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case 0xE2: // set texture window
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{
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m_render_state.SetTextureWindow(param);
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Log_DebugPrintf("Set texture window %02X %02X %02X %02X", m_render_state.texture_window_mask_x,
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m_render_state.texture_window_mask_y, m_render_state.texture_window_offset_x,
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m_render_state.texture_window_offset_y);
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command_ptr++;
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return true;
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}
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case 0xE3: // Set drawing area top left
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{
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const u32 left = param & UINT32_C(0x3FF);
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const u32 top = (param >> 10) & UINT32_C(0x1FF);
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Log_DebugPrintf("Set drawing area top-left: (%u, %u)", left, top);
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if (m_drawing_area.left != left || m_drawing_area.top != top)
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{
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FlushRender();
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m_drawing_area.left = left;
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m_drawing_area.top = top;
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UpdateDrawingArea();
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}
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command_ptr++;
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return true;
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}
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case 0xE4: // Set drawing area bottom right
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{
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const u32 right = param & UINT32_C(0x3FF);
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const u32 bottom = (param >> 10) & UINT32_C(0x1FF);
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Log_DebugPrintf("Set drawing area bottom-right: (%u, %u)", m_drawing_area.right, m_drawing_area.bottom);
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if (m_drawing_area.right != right || m_drawing_area.bottom != bottom)
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{
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FlushRender();
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m_drawing_area.right = right;
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m_drawing_area.bottom = bottom;
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UpdateDrawingArea();
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}
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command_ptr++;
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return true;
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}
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case 0xE5: // Set drawing offset
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{
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const s32 x = SignExtendN<11, s32>(param & UINT32_C(0x7FF));
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const s32 y = SignExtendN<11, s32>((param >> 11) & UINT32_C(0x7FF));
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Log_DebugPrintf("Set drawing offset (%d, %d)", m_drawing_offset.x, m_drawing_offset.y);
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if (m_drawing_offset.x != x || m_drawing_offset.y != y)
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{
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FlushRender();
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m_drawing_offset.x = x;
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m_drawing_offset.y = y;
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}
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command_ptr++;
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return true;
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}
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case 0xE6: // Mask bit setting
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{
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m_GPUSTAT.draw_set_mask_bit = (param & UINT32_C(0x01)) != 0;
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m_GPUSTAT.draw_to_masked_pixels = (param & UINT32_C(0x01)) != 0;
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Log_DebugPrintf("Set mask bit %u %u", BoolToUInt32(m_GPUSTAT.draw_set_mask_bit),
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BoolToUInt32(m_GPUSTAT.draw_to_masked_pixels));
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command_ptr++;
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return true;
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}
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default:
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{
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Log_ErrorPrintf("Unimplemented GP0 command 0x%02X", command);
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command_ptr++;
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return true;
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}
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}
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}
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}
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void GPU::WriteGP1(u32 value)
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{
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@ -732,211 +611,6 @@ void GPU::HandleGetGPUInfoCommand(u32 value)
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}
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}
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bool GPU::HandleRenderCommand(const u32*& command_ptr, u32 command_size)
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{
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const RenderCommand rc{command_ptr[0]};
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u8 words_per_vertex;
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u32 num_vertices;
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u32 total_words;
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switch (rc.primitive)
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{
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case Primitive::Polygon:
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{
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// shaded vertices use the colour from the first word for the first vertex
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words_per_vertex = 1 + BoolToUInt8(rc.texture_enable) + BoolToUInt8(rc.shading_enable);
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num_vertices = rc.quad_polygon ? 4 : 3;
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total_words = words_per_vertex * num_vertices + BoolToUInt8(!rc.shading_enable);
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}
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break;
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case Primitive::Line:
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{
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words_per_vertex = 1 + BoolToUInt8(rc.shading_enable);
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if (rc.polyline)
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{
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// polyline goes until we hit the termination code
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num_vertices = 0;
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bool found_terminator = false;
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for (u32 pos = 1 + BoolToUInt32(!rc.shading_enable); pos < command_size; pos += words_per_vertex)
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{
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if (command_ptr[pos] == 0x55555555)
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{
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found_terminator = true;
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break;
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}
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num_vertices++;
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}
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if (!found_terminator)
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return false;
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}
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else
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{
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num_vertices = 2;
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}
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total_words = words_per_vertex * num_vertices + BoolToUInt8(!rc.shading_enable);
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}
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break;
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case Primitive::Rectangle:
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{
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words_per_vertex =
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2 + BoolToUInt8(rc.texture_enable) + BoolToUInt8(rc.rectangle_size == DrawRectangleSize::Variable);
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num_vertices = 1;
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total_words = words_per_vertex;
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}
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break;
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default:
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UnreachableCode();
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return true;
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}
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if (command_size < total_words)
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return false;
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static constexpr std::array<const char*, 4> primitive_names = {{"", "polygon", "line", "rectangle"}};
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Log_DebugPrintf("Render %s %s %s %s %s (%u verts, %u words per vert)", rc.quad_polygon ? "four-point" : "three-point",
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rc.transparency_enable ? "semi-transparent" : "opaque",
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rc.texture_enable ? "textured" : "non-textured", rc.shading_enable ? "shaded" : "monochrome",
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primitive_names[static_cast<u8>(rc.primitive.GetValue())], ZeroExtend32(num_vertices),
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ZeroExtend32(words_per_vertex));
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DispatchRenderCommand(rc, num_vertices, command_ptr);
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command_ptr += total_words;
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return true;
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}
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bool GPU::HandleFillRectangleCommand(const u32*& command_ptr, u32 command_size)
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{
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if (command_size < 3)
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return false;
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FlushRender();
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const u32 color = command_ptr[0] & UINT32_C(0x00FFFFFF);
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const u32 dst_x = command_ptr[1] & UINT32_C(0xFFFF);
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const u32 dst_y = command_ptr[1] >> 16;
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const u32 width = command_ptr[2] & UINT32_C(0xFFFF);
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const u32 height = command_ptr[2] >> 16;
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command_ptr += 3;
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Log_DebugPrintf("Fill VRAM rectangle offset=(%u,%u), size=(%u,%u)", dst_x, dst_y, width, height);
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// Drop higher precision when filling. Bit15 is set to 0.
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// TODO: Force 8-bit color option.
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const u16 color16 = RGBA8888ToRGBA5551(color);
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FillVRAM(dst_x, dst_y, width, height, color16);
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return true;
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}
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bool GPU::HandleCopyRectangleCPUToVRAMCommand(const u32*& command_ptr, u32 command_size)
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{
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if (command_size < 3)
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return false;
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const u32 copy_width = command_ptr[2] & UINT32_C(0xFFFF);
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const u32 copy_height = command_ptr[2] >> 16;
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const u32 num_pixels = copy_width * copy_height;
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const u32 num_words = 3 + ((num_pixels + 1) / 2);
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if (command_size < num_words)
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return false;
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const u32 dst_x = command_ptr[1] & UINT32_C(0xFFFF);
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const u32 dst_y = command_ptr[1] >> 16;
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Log_DebugPrintf("Copy rectangle from CPU to VRAM offset=(%u,%u), size=(%u,%u)", dst_x, dst_y, copy_width,
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copy_height);
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if ((dst_x + copy_width) > VRAM_WIDTH || (dst_y + copy_height) > VRAM_HEIGHT)
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{
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Panic("Out of bounds VRAM copy");
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return true;
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}
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if (m_debug_options.dump_cpu_to_vram_copies)
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{
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DumpVRAMToFile(SmallString::FromFormat("cpu_to_vram_copy_%u.png", s_cpu_to_vram_dump_id++), copy_width, copy_height,
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sizeof(u16) * copy_width, &command_ptr[3], true);
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}
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FlushRender();
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UpdateVRAM(dst_x, dst_y, copy_width, copy_height, &command_ptr[3]);
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command_ptr += num_words;
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return true;
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}
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bool GPU::HandleCopyRectangleVRAMToCPUCommand(const u32*& command_ptr, u32 command_size)
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{
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if (command_size < 3)
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return false;
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const u32 width = command_ptr[2] & UINT32_C(0xFFFF);
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const u32 height = command_ptr[2] >> 16;
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const u32 num_pixels = width * height;
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const u32 num_words = ((num_pixels + 1) / 2);
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const u32 src_x = command_ptr[1] & UINT32_C(0xFFFF);
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const u32 src_y = command_ptr[1] >> 16;
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command_ptr += 3;
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Log_DebugPrintf("Copy rectangle from VRAM to CPU offset=(%u,%u), size=(%u,%u)", src_x, src_y, width, height);
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if ((src_x + width) > VRAM_WIDTH || (src_y + height) > VRAM_HEIGHT)
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{
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Panic("Out of bounds VRAM copy");
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return true;
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}
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// all rendering should be done first...
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FlushRender();
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// TODO: A better way of doing this..
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std::vector<u32> temp(num_words);
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ReadVRAM(src_x, src_y, width, height, temp.data());
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for (const u32 bits : temp)
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m_GPUREAD_buffer.push_back(bits);
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if (m_debug_options.dump_vram_to_cpu_copies)
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{
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DumpVRAMToFile(SmallString::FromFormat("vram_to_cpu_copy_%u.png", s_cpu_to_vram_dump_id++), width, height,
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sizeof(u16) * width, temp.data(), true);
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}
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// Is this correct?
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return true;
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}
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bool GPU::HandleCopyRectangleVRAMToVRAMCommand(const u32*& command_ptr, u32 command_size)
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{
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if (command_size < 4)
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return false;
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const u32 src_x = command_ptr[1] & UINT32_C(0xFFFF);
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const u32 src_y = command_ptr[1] >> 16;
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const u32 dst_x = command_ptr[2] & UINT32_C(0xFFFF);
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const u32 dst_y = command_ptr[2] >> 16;
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const u32 width = command_ptr[3] & UINT32_C(0xFFFF);
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const u32 height = command_ptr[3] >> 16;
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command_ptr += 4;
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Log_DebugPrintf("Copy rectangle from VRAM to VRAM src=(%u,%u), dst=(%u,%u), size=(%u,%u)", src_x, src_y, dst_x, dst_y,
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width, height);
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if ((src_x + width) > VRAM_WIDTH || (src_y + height) > VRAM_HEIGHT || (dst_x + width) > VRAM_WIDTH ||
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(dst_y + height) > VRAM_HEIGHT)
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{
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Panic("Out of bounds VRAM copy");
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return true;
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}
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FlushRender();
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CopyVRAM(src_x, src_y, dst_x, dst_y, width, height);
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return true;
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}
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void GPU::UpdateDisplay() {}
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void GPU::UpdateDrawingArea() {}
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@ -184,14 +184,6 @@ protected:
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void WriteGP1(u32 value);
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void HandleGetGPUInfoCommand(u32 value);
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// Rendering commands, returns false if not enough data is provided
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bool HandleGP0Command(const u32*& command_ptr, u32 command_size);
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bool HandleRenderCommand(const u32*& command_ptr, u32 command_size);
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bool HandleFillRectangleCommand(const u32*& command_ptr, u32 command_size);
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bool HandleCopyRectangleCPUToVRAMCommand(const u32*& command_ptr, u32 command_size);
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bool HandleCopyRectangleVRAMToCPUCommand(const u32*& command_ptr, u32 command_size);
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bool HandleCopyRectangleVRAMToVRAMCommand(const u32*& command_ptr, u32 command_size);
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// Rendering in the backend
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virtual void UpdateDisplay();
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virtual void UpdateDrawingArea();
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@ -357,4 +349,28 @@ protected:
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std::deque<u32> m_GPUREAD_buffer;
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DebugOptions m_debug_options;
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private:
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using GP0CommandHandler = bool (GPU::*)(const u32*&, u32);
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using GP0CommandHandlerTable = std::array<GP0CommandHandler, 256>;
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static constexpr GP0CommandHandlerTable GenerateGP0CommandHandlerTable();
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// Rendering commands, returns false if not enough data is provided
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bool HandleUnknownGP0Command(const u32*& command_ptr, u32 command_size);
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bool HandleNOPCommand(const u32*& command_ptr, u32 command_size);
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bool HandleClearCacheCommand(const u32*& command_ptr, u32 command_size);
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bool HandleInterruptRequestCommand(const u32*& command_ptr, u32 command_size);
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bool HandleSetDrawModeCommand(const u32*& command_ptr, u32 command_size);
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bool HandleSetTextureWindowCommand(const u32*& command_ptr, u32 command_size);
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bool HandleSetDrawingAreaTopLeftCommand(const u32*& command_ptr, u32 command_size);
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bool HandleSetDrawingAreaBottomRightCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleSetDrawingOffsetCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleSetMaskBitCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleRenderCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleFillRectangleCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleCopyRectangleCPUToVRAMCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleCopyRectangleVRAMToCPUCommand(const u32*& command_ptr, u32 command_size);
|
||||
bool HandleCopyRectangleVRAMToVRAMCommand(const u32*& command_ptr, u32 command_size);
|
||||
|
||||
static const GP0CommandHandlerTable s_GP0_command_handler_table;
|
||||
};
|
||||
|
|
|
|||
368
src/core/gpu_commands.cpp
Normal file
368
src/core/gpu_commands.cpp
Normal file
|
|
@ -0,0 +1,368 @@
|
|||
#include "YBaseLib/Log.h"
|
||||
#include "YBaseLib/String.h"
|
||||
#include "gpu.h"
|
||||
#include "interrupt_controller.h"
|
||||
Log_SetChannel(GPU);
|
||||
|
||||
static u32 s_cpu_to_vram_dump_id = 1;
|
||||
static u32 s_vram_to_cpu_dump_id = 1;
|
||||
|
||||
constexpr GPU::GP0CommandHandlerTable GPU::GenerateGP0CommandHandlerTable()
|
||||
{
|
||||
GP0CommandHandlerTable table = {};
|
||||
for (u32 i = 0; i < static_cast<u32>(table.size()); i++)
|
||||
table[i] = &GPU::HandleUnknownGP0Command;
|
||||
table[0x00] = &GPU::HandleNOPCommand;
|
||||
table[0x01] = &GPU::HandleClearCacheCommand;
|
||||
table[0x02] = &GPU::HandleFillRectangleCommand;
|
||||
table[0x03] = &GPU::HandleNOPCommand;
|
||||
for (u32 i = 0x04; i <= 0x1E; i++)
|
||||
table[i] = &GPU::HandleNOPCommand;
|
||||
table[0x1F] = &GPU::HandleInterruptRequestCommand;
|
||||
for (u32 i = 0x20; i <= 0x7F; i++)
|
||||
table[i] = &GPU::HandleRenderCommand;
|
||||
table[0xE0] = &GPU::HandleNOPCommand;
|
||||
table[0xE1] = &GPU::HandleSetDrawModeCommand;
|
||||
table[0xE2] = &GPU::HandleSetTextureWindowCommand;
|
||||
table[0xE3] = &GPU::HandleSetDrawingAreaTopLeftCommand;
|
||||
table[0xE4] = &GPU::HandleSetDrawingAreaBottomRightCommand;
|
||||
table[0xE5] = &GPU::HandleSetDrawingOffsetCommand;
|
||||
table[0xE6] = &GPU::HandleSetMaskBitCommand;
|
||||
for (u32 i = 0xE7; i <= 0xEF; i++)
|
||||
table[i] = &GPU::HandleNOPCommand;
|
||||
for (u32 i = 0x80; i <= 0x9F; i++)
|
||||
table[i] = &GPU::HandleCopyRectangleVRAMToVRAMCommand;
|
||||
for (u32 i = 0xA0; i <= 0xBF; i++)
|
||||
table[i] = &GPU::HandleCopyRectangleCPUToVRAMCommand;
|
||||
for (u32 i = 0xC0; i <= 0xDF; i++)
|
||||
table[i] = &GPU::HandleCopyRectangleVRAMToCPUCommand;
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
constexpr GPU::GP0CommandHandlerTable GPU::s_GP0_command_handler_table = GPU::GenerateGP0CommandHandlerTable();
|
||||
|
||||
bool GPU::HandleUnknownGP0Command(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 command = *(command_ptr++) >> 24;
|
||||
Log_ErrorPrintf("Unimplemented GP0 command 0x%02X", command);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleNOPCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
command_ptr++;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleClearCacheCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
Log_DebugPrintf("GP0 clear cache");
|
||||
command_ptr++;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleInterruptRequestCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
Log_WarningPrintf("GP0 interrupt request");
|
||||
if (!m_GPUSTAT.interrupt_request)
|
||||
{
|
||||
m_GPUSTAT.interrupt_request = true;
|
||||
m_interrupt_controller->InterruptRequest(InterruptController::IRQ::GPU);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetDrawModeCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
|
||||
// 0..10 bits match GPUSTAT
|
||||
const u32 MASK = ((UINT32_C(1) << 11) - 1);
|
||||
m_GPUSTAT.bits = (m_GPUSTAT.bits & ~MASK) | param & MASK;
|
||||
m_GPUSTAT.texture_disable = (param & (UINT32_C(1) << 11)) != 0;
|
||||
m_render_state.texture_x_flip = (param & (UINT32_C(1) << 12)) != 0;
|
||||
m_render_state.texture_y_flip = (param & (UINT32_C(1) << 13)) != 0;
|
||||
Log_DebugPrintf("Set draw mode %08X", param);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetTextureWindowCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
m_render_state.SetTextureWindow(param);
|
||||
Log_DebugPrintf("Set texture window %02X %02X %02X %02X", m_render_state.texture_window_mask_x,
|
||||
m_render_state.texture_window_mask_y, m_render_state.texture_window_offset_x,
|
||||
m_render_state.texture_window_offset_y);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetDrawingAreaTopLeftCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
const u32 left = param & UINT32_C(0x3FF);
|
||||
const u32 top = (param >> 10) & UINT32_C(0x1FF);
|
||||
Log_DebugPrintf("Set drawing area top-left: (%u, %u)", left, top);
|
||||
if (m_drawing_area.left != left || m_drawing_area.top != top)
|
||||
{
|
||||
FlushRender();
|
||||
|
||||
m_drawing_area.left = left;
|
||||
m_drawing_area.top = top;
|
||||
UpdateDrawingArea();
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetDrawingAreaBottomRightCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
|
||||
const u32 right = param & UINT32_C(0x3FF);
|
||||
const u32 bottom = (param >> 10) & UINT32_C(0x1FF);
|
||||
Log_DebugPrintf("Set drawing area bottom-right: (%u, %u)", m_drawing_area.right, m_drawing_area.bottom);
|
||||
if (m_drawing_area.right != right || m_drawing_area.bottom != bottom)
|
||||
{
|
||||
FlushRender();
|
||||
|
||||
m_drawing_area.right = right;
|
||||
m_drawing_area.bottom = bottom;
|
||||
UpdateDrawingArea();
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetDrawingOffsetCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
const s32 x = SignExtendN<11, s32>(param & UINT32_C(0x7FF));
|
||||
const s32 y = SignExtendN<11, s32>((param >> 11) & UINT32_C(0x7FF));
|
||||
Log_DebugPrintf("Set drawing offset (%d, %d)", m_drawing_offset.x, m_drawing_offset.y);
|
||||
if (m_drawing_offset.x != x || m_drawing_offset.y != y)
|
||||
{
|
||||
FlushRender();
|
||||
|
||||
m_drawing_offset.x = x;
|
||||
m_drawing_offset.y = y;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleSetMaskBitCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const u32 param = *(command_ptr++) & UINT32_C(0x00FFFFFF);
|
||||
|
||||
m_GPUSTAT.draw_set_mask_bit = (param & UINT32_C(0x01)) != 0;
|
||||
m_GPUSTAT.draw_to_masked_pixels = (param & UINT32_C(0x01)) != 0;
|
||||
Log_DebugPrintf("Set mask bit %u %u", BoolToUInt32(m_GPUSTAT.draw_set_mask_bit),
|
||||
BoolToUInt32(m_GPUSTAT.draw_to_masked_pixels));
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleRenderCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
const RenderCommand rc{command_ptr[0]};
|
||||
u8 words_per_vertex;
|
||||
u32 num_vertices;
|
||||
u32 total_words;
|
||||
switch (rc.primitive)
|
||||
{
|
||||
case Primitive::Polygon:
|
||||
{
|
||||
// shaded vertices use the colour from the first word for the first vertex
|
||||
words_per_vertex = 1 + BoolToUInt8(rc.texture_enable) + BoolToUInt8(rc.shading_enable);
|
||||
num_vertices = rc.quad_polygon ? 4 : 3;
|
||||
total_words = words_per_vertex * num_vertices + BoolToUInt8(!rc.shading_enable);
|
||||
}
|
||||
break;
|
||||
|
||||
case Primitive::Line:
|
||||
{
|
||||
words_per_vertex = 1 + BoolToUInt8(rc.shading_enable);
|
||||
if (rc.polyline)
|
||||
{
|
||||
// polyline goes until we hit the termination code
|
||||
num_vertices = 0;
|
||||
bool found_terminator = false;
|
||||
for (u32 pos = 1 + BoolToUInt32(!rc.shading_enable); pos < command_size; pos += words_per_vertex)
|
||||
{
|
||||
if (command_ptr[pos] == 0x55555555)
|
||||
{
|
||||
found_terminator = true;
|
||||
break;
|
||||
}
|
||||
|
||||
num_vertices++;
|
||||
}
|
||||
if (!found_terminator)
|
||||
return false;
|
||||
}
|
||||
else
|
||||
{
|
||||
num_vertices = 2;
|
||||
}
|
||||
|
||||
total_words = words_per_vertex * num_vertices + BoolToUInt8(!rc.shading_enable);
|
||||
}
|
||||
break;
|
||||
|
||||
case Primitive::Rectangle:
|
||||
{
|
||||
words_per_vertex =
|
||||
2 + BoolToUInt8(rc.texture_enable) + BoolToUInt8(rc.rectangle_size == DrawRectangleSize::Variable);
|
||||
num_vertices = 1;
|
||||
total_words = words_per_vertex;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
UnreachableCode();
|
||||
return true;
|
||||
}
|
||||
|
||||
if (command_size < total_words)
|
||||
return false;
|
||||
|
||||
static constexpr std::array<const char*, 4> primitive_names = {{"", "polygon", "line", "rectangle"}};
|
||||
|
||||
Log_DebugPrintf("Render %s %s %s %s %s (%u verts, %u words per vert)", rc.quad_polygon ? "four-point" : "three-point",
|
||||
rc.transparency_enable ? "semi-transparent" : "opaque",
|
||||
rc.texture_enable ? "textured" : "non-textured", rc.shading_enable ? "shaded" : "monochrome",
|
||||
primitive_names[static_cast<u8>(rc.primitive.GetValue())], ZeroExtend32(num_vertices),
|
||||
ZeroExtend32(words_per_vertex));
|
||||
|
||||
DispatchRenderCommand(rc, num_vertices, command_ptr);
|
||||
command_ptr += total_words;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleFillRectangleCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
if (command_size < 3)
|
||||
return false;
|
||||
|
||||
FlushRender();
|
||||
|
||||
const u32 color = command_ptr[0] & UINT32_C(0x00FFFFFF);
|
||||
const u32 dst_x = command_ptr[1] & UINT32_C(0xFFFF);
|
||||
const u32 dst_y = command_ptr[1] >> 16;
|
||||
const u32 width = command_ptr[2] & UINT32_C(0xFFFF);
|
||||
const u32 height = command_ptr[2] >> 16;
|
||||
command_ptr += 3;
|
||||
|
||||
Log_DebugPrintf("Fill VRAM rectangle offset=(%u,%u), size=(%u,%u)", dst_x, dst_y, width, height);
|
||||
|
||||
// Drop higher precision when filling. Bit15 is set to 0.
|
||||
// TODO: Force 8-bit color option.
|
||||
const u16 color16 = RGBA8888ToRGBA5551(color);
|
||||
|
||||
FillVRAM(dst_x, dst_y, width, height, color16);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleCopyRectangleCPUToVRAMCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
if (command_size < 3)
|
||||
return false;
|
||||
|
||||
const u32 copy_width = command_ptr[2] & UINT32_C(0xFFFF);
|
||||
const u32 copy_height = command_ptr[2] >> 16;
|
||||
const u32 num_pixels = copy_width * copy_height;
|
||||
const u32 num_words = 3 + ((num_pixels + 1) / 2);
|
||||
if (command_size < num_words)
|
||||
return false;
|
||||
|
||||
const u32 dst_x = command_ptr[1] & UINT32_C(0xFFFF);
|
||||
const u32 dst_y = command_ptr[1] >> 16;
|
||||
|
||||
Log_DebugPrintf("Copy rectangle from CPU to VRAM offset=(%u,%u), size=(%u,%u)", dst_x, dst_y, copy_width,
|
||||
copy_height);
|
||||
|
||||
if ((dst_x + copy_width) > VRAM_WIDTH || (dst_y + copy_height) > VRAM_HEIGHT)
|
||||
{
|
||||
Panic("Out of bounds VRAM copy");
|
||||
return true;
|
||||
}
|
||||
|
||||
if (m_debug_options.dump_cpu_to_vram_copies)
|
||||
{
|
||||
DumpVRAMToFile(SmallString::FromFormat("cpu_to_vram_copy_%u.png", s_cpu_to_vram_dump_id++), copy_width, copy_height,
|
||||
sizeof(u16) * copy_width, &command_ptr[3], true);
|
||||
}
|
||||
|
||||
FlushRender();
|
||||
UpdateVRAM(dst_x, dst_y, copy_width, copy_height, &command_ptr[3]);
|
||||
command_ptr += num_words;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleCopyRectangleVRAMToCPUCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
if (command_size < 3)
|
||||
return false;
|
||||
|
||||
const u32 width = command_ptr[2] & UINT32_C(0xFFFF);
|
||||
const u32 height = command_ptr[2] >> 16;
|
||||
const u32 num_pixels = width * height;
|
||||
const u32 num_words = ((num_pixels + 1) / 2);
|
||||
const u32 src_x = command_ptr[1] & UINT32_C(0xFFFF);
|
||||
const u32 src_y = command_ptr[1] >> 16;
|
||||
command_ptr += 3;
|
||||
|
||||
Log_DebugPrintf("Copy rectangle from VRAM to CPU offset=(%u,%u), size=(%u,%u)", src_x, src_y, width, height);
|
||||
|
||||
if ((src_x + width) > VRAM_WIDTH || (src_y + height) > VRAM_HEIGHT)
|
||||
{
|
||||
Panic("Out of bounds VRAM copy");
|
||||
return true;
|
||||
}
|
||||
|
||||
// all rendering should be done first...
|
||||
FlushRender();
|
||||
|
||||
// TODO: A better way of doing this..
|
||||
std::vector<u32> temp(num_words);
|
||||
ReadVRAM(src_x, src_y, width, height, temp.data());
|
||||
for (const u32 bits : temp)
|
||||
m_GPUREAD_buffer.push_back(bits);
|
||||
|
||||
if (m_debug_options.dump_vram_to_cpu_copies)
|
||||
{
|
||||
DumpVRAMToFile(SmallString::FromFormat("vram_to_cpu_copy_%u.png", s_cpu_to_vram_dump_id++), width, height,
|
||||
sizeof(u16) * width, temp.data(), true);
|
||||
}
|
||||
|
||||
// Is this correct?
|
||||
return true;
|
||||
}
|
||||
|
||||
bool GPU::HandleCopyRectangleVRAMToVRAMCommand(const u32*& command_ptr, u32 command_size)
|
||||
{
|
||||
if (command_size < 4)
|
||||
return false;
|
||||
|
||||
const u32 src_x = command_ptr[1] & UINT32_C(0xFFFF);
|
||||
const u32 src_y = command_ptr[1] >> 16;
|
||||
const u32 dst_x = command_ptr[2] & UINT32_C(0xFFFF);
|
||||
const u32 dst_y = command_ptr[2] >> 16;
|
||||
const u32 width = command_ptr[3] & UINT32_C(0xFFFF);
|
||||
const u32 height = command_ptr[3] >> 16;
|
||||
command_ptr += 4;
|
||||
|
||||
Log_DebugPrintf("Copy rectangle from VRAM to VRAM src=(%u,%u), dst=(%u,%u), size=(%u,%u)", src_x, src_y, dst_x, dst_y,
|
||||
width, height);
|
||||
|
||||
if ((src_x + width) > VRAM_WIDTH || (src_y + height) > VRAM_HEIGHT || (dst_x + width) > VRAM_WIDTH ||
|
||||
(dst_y + height) > VRAM_HEIGHT)
|
||||
{
|
||||
Panic("Out of bounds VRAM copy");
|
||||
return true;
|
||||
}
|
||||
|
||||
FlushRender();
|
||||
CopyVRAM(src_x, src_y, dst_x, dst_y, width, height);
|
||||
return true;
|
||||
}
|
||||
Loading…
Reference in a new issue