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-rw-r--r--src/video_core/swrasterizer/framebuffer.cpp360
1 files changed, 0 insertions, 360 deletions
diff --git a/src/video_core/swrasterizer/framebuffer.cpp b/src/video_core/swrasterizer/framebuffer.cpp
deleted file mode 100644
index f34eab6cf..000000000
--- a/src/video_core/swrasterizer/framebuffer.cpp
+++ /dev/null
@@ -1,360 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-
-#include "common/assert.h"
-#include "common/color.h"
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "common/math_util.h"
-#include "common/vector_math.h"
-#include "core/hw/gpu.h"
-#include "core/memory.h"
-#include "video_core/pica_state.h"
-#include "video_core/regs_framebuffer.h"
-#include "video_core/swrasterizer/framebuffer.h"
-#include "video_core/utils.h"
-
-namespace Pica {
-namespace Rasterizer {
-
-void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetColorBufferPhysicalAddress();
-
- // Similarly to textures, the render framebuffer is laid out from bottom to top, too.
- // NOTE: The framebuffer height register contains the actual FB height minus one.
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel =
- GPU::Regs::BytesPerPixel(GPU::Regs::PixelFormat(framebuffer.color_format.Value()));
- u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) +
- coarse_y * framebuffer.width * bytes_per_pixel;
- u8* dst_pixel = Memory::GetPhysicalPointer(addr) + dst_offset;
-
- switch (framebuffer.color_format) {
- case FramebufferRegs::ColorFormat::RGBA8:
- Color::EncodeRGBA8(color, dst_pixel);
- break;
-
- case FramebufferRegs::ColorFormat::RGB8:
- Color::EncodeRGB8(color, dst_pixel);
- break;
-
- case FramebufferRegs::ColorFormat::RGB5A1:
- Color::EncodeRGB5A1(color, dst_pixel);
- break;
-
- case FramebufferRegs::ColorFormat::RGB565:
- Color::EncodeRGB565(color, dst_pixel);
- break;
-
- case FramebufferRegs::ColorFormat::RGBA4:
- Color::EncodeRGBA4(color, dst_pixel);
- break;
-
- default:
- LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x",
- framebuffer.color_format.Value());
- UNIMPLEMENTED();
- }
-}
-
-const Math::Vec4<u8> GetPixel(int x, int y) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetColorBufferPhysicalAddress();
-
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel =
- GPU::Regs::BytesPerPixel(GPU::Regs::PixelFormat(framebuffer.color_format.Value()));
- u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) +
- coarse_y * framebuffer.width * bytes_per_pixel;
- u8* src_pixel = Memory::GetPhysicalPointer(addr) + src_offset;
-
- switch (framebuffer.color_format) {
- case FramebufferRegs::ColorFormat::RGBA8:
- return Color::DecodeRGBA8(src_pixel);
-
- case FramebufferRegs::ColorFormat::RGB8:
- return Color::DecodeRGB8(src_pixel);
-
- case FramebufferRegs::ColorFormat::RGB5A1:
- return Color::DecodeRGB5A1(src_pixel);
-
- case FramebufferRegs::ColorFormat::RGB565:
- return Color::DecodeRGB565(src_pixel);
-
- case FramebufferRegs::ColorFormat::RGBA4:
- return Color::DecodeRGBA4(src_pixel);
-
- default:
- LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x",
- framebuffer.color_format.Value());
- UNIMPLEMENTED();
- }
-
- return {0, 0, 0, 0};
-}
-
-u32 GetDepth(int x, int y) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
- u8* depth_buffer = Memory::GetPhysicalPointer(addr);
-
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel = FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
- u32 stride = framebuffer.width * bytes_per_pixel;
-
- u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
- u8* src_pixel = depth_buffer + src_offset;
-
- switch (framebuffer.depth_format) {
- case FramebufferRegs::DepthFormat::D16:
- return Color::DecodeD16(src_pixel);
- case FramebufferRegs::DepthFormat::D24:
- return Color::DecodeD24(src_pixel);
- case FramebufferRegs::DepthFormat::D24S8:
- return Color::DecodeD24S8(src_pixel).x;
- default:
- LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", framebuffer.depth_format);
- UNIMPLEMENTED();
- return 0;
- }
-}
-
-u8 GetStencil(int x, int y) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
- u8* depth_buffer = Memory::GetPhysicalPointer(addr);
-
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel = Pica::FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
- u32 stride = framebuffer.width * bytes_per_pixel;
-
- u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
- u8* src_pixel = depth_buffer + src_offset;
-
- switch (framebuffer.depth_format) {
- case FramebufferRegs::DepthFormat::D24S8:
- return Color::DecodeD24S8(src_pixel).y;
-
- default:
- LOG_WARNING(
- HW_GPU,
- "GetStencil called for function which doesn't have a stencil component (format %u)",
- framebuffer.depth_format);
- return 0;
- }
-}
-
-void SetDepth(int x, int y, u32 value) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
- u8* depth_buffer = Memory::GetPhysicalPointer(addr);
-
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel = FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
- u32 stride = framebuffer.width * bytes_per_pixel;
-
- u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
- u8* dst_pixel = depth_buffer + dst_offset;
-
- switch (framebuffer.depth_format) {
- case FramebufferRegs::DepthFormat::D16:
- Color::EncodeD16(value, dst_pixel);
- break;
-
- case FramebufferRegs::DepthFormat::D24:
- Color::EncodeD24(value, dst_pixel);
- break;
-
- case FramebufferRegs::DepthFormat::D24S8:
- Color::EncodeD24X8(value, dst_pixel);
- break;
-
- default:
- LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", framebuffer.depth_format);
- UNIMPLEMENTED();
- break;
- }
-}
-
-void SetStencil(int x, int y, u8 value) {
- const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
- const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
- u8* depth_buffer = Memory::GetPhysicalPointer(addr);
-
- y = framebuffer.height - y;
-
- const u32 coarse_y = y & ~7;
- u32 bytes_per_pixel = Pica::FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
- u32 stride = framebuffer.width * bytes_per_pixel;
-
- u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
- u8* dst_pixel = depth_buffer + dst_offset;
-
- switch (framebuffer.depth_format) {
- case Pica::FramebufferRegs::DepthFormat::D16:
- case Pica::FramebufferRegs::DepthFormat::D24:
- // Nothing to do
- break;
-
- case Pica::FramebufferRegs::DepthFormat::D24S8:
- Color::EncodeX24S8(value, dst_pixel);
- break;
-
- default:
- LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", framebuffer.depth_format);
- UNIMPLEMENTED();
- break;
- }
-}
-
-u8 PerformStencilAction(FramebufferRegs::StencilAction action, u8 old_stencil, u8 ref) {
- switch (action) {
- case FramebufferRegs::StencilAction::Keep:
- return old_stencil;
-
- case FramebufferRegs::StencilAction::Zero:
- return 0;
-
- case FramebufferRegs::StencilAction::Replace:
- return ref;
-
- case FramebufferRegs::StencilAction::Increment:
- // Saturated increment
- return std::min<u8>(old_stencil, 254) + 1;
-
- case FramebufferRegs::StencilAction::Decrement:
- // Saturated decrement
- return std::max<u8>(old_stencil, 1) - 1;
-
- case FramebufferRegs::StencilAction::Invert:
- return ~old_stencil;
-
- case FramebufferRegs::StencilAction::IncrementWrap:
- return old_stencil + 1;
-
- case FramebufferRegs::StencilAction::DecrementWrap:
- return old_stencil - 1;
-
- default:
- LOG_CRITICAL(HW_GPU, "Unknown stencil action %x", (int)action);
- UNIMPLEMENTED();
- return 0;
- }
-}
-
-Math::Vec4<u8> EvaluateBlendEquation(const Math::Vec4<u8>& src, const Math::Vec4<u8>& srcfactor,
- const Math::Vec4<u8>& dest, const Math::Vec4<u8>& destfactor,
- FramebufferRegs::BlendEquation equation) {
- Math::Vec4<int> result;
-
- auto src_result = (src * srcfactor).Cast<int>();
- auto dst_result = (dest * destfactor).Cast<int>();
-
- switch (equation) {
- case FramebufferRegs::BlendEquation::Add:
- result = (src_result + dst_result) / 255;
- break;
-
- case FramebufferRegs::BlendEquation::Subtract:
- result = (src_result - dst_result) / 255;
- break;
-
- case FramebufferRegs::BlendEquation::ReverseSubtract:
- result = (dst_result - src_result) / 255;
- break;
-
- // TODO: How do these two actually work? OpenGL doesn't include the blend factors in the
- // min/max computations, but is this what the 3DS actually does?
- case FramebufferRegs::BlendEquation::Min:
- result.r() = std::min(src.r(), dest.r());
- result.g() = std::min(src.g(), dest.g());
- result.b() = std::min(src.b(), dest.b());
- result.a() = std::min(src.a(), dest.a());
- break;
-
- case FramebufferRegs::BlendEquation::Max:
- result.r() = std::max(src.r(), dest.r());
- result.g() = std::max(src.g(), dest.g());
- result.b() = std::max(src.b(), dest.b());
- result.a() = std::max(src.a(), dest.a());
- break;
-
- default:
- LOG_CRITICAL(HW_GPU, "Unknown RGB blend equation %x", equation);
- UNIMPLEMENTED();
- }
-
- return Math::Vec4<u8>(MathUtil::Clamp(result.r(), 0, 255), MathUtil::Clamp(result.g(), 0, 255),
- MathUtil::Clamp(result.b(), 0, 255), MathUtil::Clamp(result.a(), 0, 255));
-};
-
-u8 LogicOp(u8 src, u8 dest, FramebufferRegs::LogicOp op) {
- switch (op) {
- case FramebufferRegs::LogicOp::Clear:
- return 0;
-
- case FramebufferRegs::LogicOp::And:
- return src & dest;
-
- case FramebufferRegs::LogicOp::AndReverse:
- return src & ~dest;
-
- case FramebufferRegs::LogicOp::Copy:
- return src;
-
- case FramebufferRegs::LogicOp::Set:
- return 255;
-
- case FramebufferRegs::LogicOp::CopyInverted:
- return ~src;
-
- case FramebufferRegs::LogicOp::NoOp:
- return dest;
-
- case FramebufferRegs::LogicOp::Invert:
- return ~dest;
-
- case FramebufferRegs::LogicOp::Nand:
- return ~(src & dest);
-
- case FramebufferRegs::LogicOp::Or:
- return src | dest;
-
- case FramebufferRegs::LogicOp::Nor:
- return ~(src | dest);
-
- case FramebufferRegs::LogicOp::Xor:
- return src ^ dest;
-
- case FramebufferRegs::LogicOp::Equiv:
- return ~(src ^ dest);
-
- case FramebufferRegs::LogicOp::AndInverted:
- return ~src & dest;
-
- case FramebufferRegs::LogicOp::OrReverse:
- return src | ~dest;
-
- case FramebufferRegs::LogicOp::OrInverted:
- return ~src | dest;
- }
-
- UNREACHABLE();
-};
-
-} // namespace Rasterizer
-} // namespace Pica