summaryrefslogtreecommitdiff
path: root/Source/Core/VideoBackends/Software/SWEfbInterface.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'Source/Core/VideoBackends/Software/SWEfbInterface.cpp')
-rw-r--r--Source/Core/VideoBackends/Software/SWEfbInterface.cpp750
1 files changed, 750 insertions, 0 deletions
diff --git a/Source/Core/VideoBackends/Software/SWEfbInterface.cpp b/Source/Core/VideoBackends/Software/SWEfbInterface.cpp
new file mode 100644
index 0000000000..e534fab1c5
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/SWEfbInterface.cpp
@@ -0,0 +1,750 @@
+// Copyright 2009 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "VideoBackends/Software/SWEfbInterface.h"
+
+#include <algorithm>
+#include <array>
+#include <cstring>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+#include "Common/Logging/Log.h"
+
+#include "VideoBackends/Software/CopyRegion.h"
+#include "VideoCommon/BPMemory.h"
+#include "VideoCommon/LookUpTables.h"
+#include "VideoCommon/PerfQueryBase.h"
+#include "VideoCommon/VideoCommon.h"
+
+namespace EfbInterface
+{
+static std::array<u8, EFB_WIDTH * EFB_HEIGHT * 6> efb;
+
+static std::array<u32, PQ_NUM_MEMBERS> perf_values;
+
+static inline u32 GetColorOffset(u16 x, u16 y)
+{
+ return (x + y * EFB_WIDTH) * 3;
+}
+
+static inline u32 GetDepthOffset(u16 x, u16 y)
+{
+ constexpr u32 depth_buffer_start = EFB_WIDTH * EFB_HEIGHT * 3;
+
+ return (x + y * EFB_WIDTH) * 3 + depth_buffer_start;
+}
+
+static void SetPixelAlphaOnly(u32 offset, u8 a)
+{
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::Z24:
+ case PixelFormat::RGB565_Z16:
+ // do nothing
+ break;
+ case PixelFormat::RGBA6_Z24:
+ {
+ u32 a32 = a;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xffffffc0;
+ val |= (a32 >> 2) & 0x0000003f;
+ *dst = val;
+ }
+ break;
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ break;
+ }
+}
+
+static void SetPixelColorOnly(u32 offset, u8* rgb)
+{
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::Z24:
+ {
+ u32 src = *(u32*)rgb;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= src >> 8;
+ *dst = val;
+ }
+ break;
+ case PixelFormat::RGBA6_Z24:
+ {
+ u32 src = *(u32*)rgb;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff00003f;
+ val |= (src >> 4) & 0x00000fc0; // blue
+ val |= (src >> 6) & 0x0003f000; // green
+ val |= (src >> 8) & 0x00fc0000; // red
+ *dst = val;
+ }
+ break;
+ case PixelFormat::RGB565_Z16:
+ {
+ // TODO: RGB565_Z16 is not supported correctly yet
+ u32 src = *(u32*)rgb;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= src >> 8;
+ *dst = val;
+ }
+ break;
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ break;
+ }
+}
+
+static void SetPixelAlphaColor(u32 offset, u8* color)
+{
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::Z24:
+ {
+ u32 src = *(u32*)color;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= src >> 8;
+ *dst = val;
+ }
+ break;
+ case PixelFormat::RGBA6_Z24:
+ {
+ u32 src = *(u32*)color;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= (src >> 2) & 0x0000003f; // alpha
+ val |= (src >> 4) & 0x00000fc0; // blue
+ val |= (src >> 6) & 0x0003f000; // green
+ val |= (src >> 8) & 0x00fc0000; // red
+ *dst = val;
+ }
+ break;
+ case PixelFormat::RGB565_Z16:
+ {
+ // TODO: RGB565_Z16 is not supported correctly yet
+ u32 src = *(u32*)color;
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= src >> 8;
+ *dst = val;
+ }
+ break;
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ break;
+ }
+}
+
+static u32 GetPixelColor(u32 offset)
+{
+ u32 src;
+ std::memcpy(&src, &efb[offset], sizeof(u32));
+
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::Z24:
+ return 0xff | ((src & 0x00ffffff) << 8);
+
+ case PixelFormat::RGBA6_Z24:
+ return Convert6To8(src & 0x3f) | // Alpha
+ Convert6To8((src >> 6) & 0x3f) << 8 | // Blue
+ Convert6To8((src >> 12) & 0x3f) << 16 | // Green
+ Convert6To8((src >> 18) & 0x3f) << 24; // Red
+
+ case PixelFormat::RGB565_Z16:
+ // TODO: RGB565_Z16 is not supported correctly yet
+ return 0xff | ((src & 0x00ffffff) << 8);
+
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ return 0;
+ }
+}
+
+static void SetPixelDepth(u32 offset, u32 depth)
+{
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::RGBA6_Z24:
+ case PixelFormat::Z24:
+ {
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= depth & 0x00ffffff;
+ *dst = val;
+ }
+ break;
+ case PixelFormat::RGB565_Z16:
+ {
+ // TODO: RGB565_Z16 is not supported correctly yet
+ u32* dst = (u32*)&efb[offset];
+ u32 val = *dst & 0xff000000;
+ val |= depth & 0x00ffffff;
+ *dst = val;
+ }
+ break;
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ break;
+ }
+}
+
+static u32 GetPixelDepth(u32 offset)
+{
+ u32 depth = 0;
+
+ switch (bpmem.zcontrol.pixel_format)
+ {
+ case PixelFormat::RGB8_Z24:
+ case PixelFormat::RGBA6_Z24:
+ case PixelFormat::Z24:
+ {
+ depth = (*(u32*)&efb[offset]) & 0x00ffffff;
+ }
+ break;
+ case PixelFormat::RGB565_Z16:
+ {
+ // TODO: RGB565_Z16 is not supported correctly yet
+ depth = (*(u32*)&efb[offset]) & 0x00ffffff;
+ }
+ break;
+ default:
+ ERROR_LOG_FMT(VIDEO, "Unsupported pixel format: {}", bpmem.zcontrol.pixel_format);
+ break;
+ }
+
+ return depth;
+}
+
+static u32 GetSourceFactor(u8* srcClr, u8* dstClr, SrcBlendFactor mode)
+{
+ switch (mode)
+ {
+ case SrcBlendFactor::Zero:
+ return 0;
+ case SrcBlendFactor::One:
+ return 0xffffffff;
+ case SrcBlendFactor::DstClr:
+ return *(u32*)dstClr;
+ case SrcBlendFactor::InvDstClr:
+ return 0xffffffff - *(u32*)dstClr;
+ case SrcBlendFactor::SrcAlpha:
+ {
+ u8 alpha = srcClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case SrcBlendFactor::InvSrcAlpha:
+ {
+ u8 alpha = 0xff - srcClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case SrcBlendFactor::DstAlpha:
+ {
+ u8 alpha = dstClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case SrcBlendFactor::InvDstAlpha:
+ {
+ u8 alpha = 0xff - dstClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ }
+
+ return 0;
+}
+
+static u32 GetDestinationFactor(u8* srcClr, u8* dstClr, DstBlendFactor mode)
+{
+ switch (mode)
+ {
+ case DstBlendFactor::Zero:
+ return 0;
+ case DstBlendFactor::One:
+ return 0xffffffff;
+ case DstBlendFactor::SrcClr:
+ return *(u32*)srcClr;
+ case DstBlendFactor::InvSrcClr:
+ return 0xffffffff - *(u32*)srcClr;
+ case DstBlendFactor::SrcAlpha:
+ {
+ u8 alpha = srcClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case DstBlendFactor::InvSrcAlpha:
+ {
+ u8 alpha = 0xff - srcClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case DstBlendFactor::DstAlpha:
+ {
+ u8 alpha = dstClr[ALP_C] & 0xff;
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ case DstBlendFactor::InvDstAlpha:
+ {
+ u8 alpha = 0xff - dstClr[ALP_C];
+ u32 factor = alpha << 24 | alpha << 16 | alpha << 8 | alpha;
+ return factor;
+ }
+ }
+
+ return 0;
+}
+
+static void BlendColor(u8* srcClr, u8* dstClr)
+{
+ u32 srcFactor = GetSourceFactor(srcClr, dstClr, bpmem.blendmode.srcfactor);
+ u32 dstFactor = GetDestinationFactor(srcClr, dstClr, bpmem.blendmode.dstfactor);
+
+ for (int i = 0; i < 4; i++)
+ {
+ // add MSB of factors to make their range 0 -> 256
+ u32 sf = (srcFactor & 0xff);
+ sf += sf >> 7;
+
+ u32 df = (dstFactor & 0xff);
+ df += df >> 7;
+
+ u32 color = (srcClr[i] * sf + dstClr[i] * df) >> 8;
+ dstClr[i] = (color > 255) ? 255 : color;
+
+ dstFactor >>= 8;
+ srcFactor >>= 8;
+ }
+}
+
+static void LogicBlend(u32 srcClr, u32* dstClr, LogicOp op)
+{
+ switch (op)
+ {
+ case LogicOp::Clear:
+ *dstClr = 0;
+ break;
+ case LogicOp::And:
+ *dstClr = srcClr & *dstClr;
+ break;
+ case LogicOp::AndReverse:
+ *dstClr = srcClr & (~*dstClr);
+ break;
+ case LogicOp::Copy:
+ *dstClr = srcClr;
+ break;
+ case LogicOp::AndInverted:
+ *dstClr = (~srcClr) & *dstClr;
+ break;
+ case LogicOp::NoOp:
+ // Do nothing
+ break;
+ case LogicOp::Xor:
+ *dstClr = srcClr ^ *dstClr;
+ break;
+ case LogicOp::Or:
+ *dstClr = srcClr | *dstClr;
+ break;
+ case LogicOp::Nor:
+ *dstClr = ~(srcClr | *dstClr);
+ break;
+ case LogicOp::Equiv:
+ *dstClr = ~(srcClr ^ *dstClr);
+ break;
+ case LogicOp::Invert:
+ *dstClr = ~*dstClr;
+ break;
+ case LogicOp::OrReverse:
+ *dstClr = srcClr | (~*dstClr);
+ break;
+ case LogicOp::CopyInverted:
+ *dstClr = ~srcClr;
+ break;
+ case LogicOp::OrInverted:
+ *dstClr = (~srcClr) | *dstClr;
+ break;
+ case LogicOp::Nand:
+ *dstClr = ~(srcClr & *dstClr);
+ break;
+ case LogicOp::Set:
+ *dstClr = 0xffffffff;
+ break;
+ }
+}
+
+static void SubtractBlend(u8* srcClr, u8* dstClr)
+{
+ for (int i = 0; i < 4; i++)
+ {
+ int c = (int)dstClr[i] - (int)srcClr[i];
+ dstClr[i] = (c < 0) ? 0 : c;
+ }
+}
+
+static void Dither(u16 x, u16 y, u8* color)
+{
+ // No blending for RGB8 mode
+ if (!bpmem.blendmode.dither || bpmem.zcontrol.pixel_format != PixelFormat::RGBA6_Z24)
+ return;
+
+ // Flipper uses a standard 2x2 Bayer Matrix for 6 bit dithering
+ static const u8 dither[2][2] = {{0, 2}, {3, 1}};
+
+ // Only the color channels are dithered?
+ for (int i = BLU_C; i <= RED_C; i++)
+ color[i] = ((color[i] - (color[i] >> 6)) + dither[y & 1][x & 1]) & 0xfc;
+}
+
+void BlendTev(u16 x, u16 y, u8* color)
+{
+ const u32 offset = GetColorOffset(x, y);
+ u32 dstClr = GetPixelColor(offset);
+
+ u8* dstClrPtr = (u8*)&dstClr;
+
+ if (bpmem.blendmode.blendenable)
+ {
+ if (bpmem.blendmode.subtract)
+ SubtractBlend(color, dstClrPtr);
+ else
+ BlendColor(color, dstClrPtr);
+ }
+ else if (bpmem.blendmode.logicopenable)
+ {
+ LogicBlend(*((u32*)color), &dstClr, bpmem.blendmode.logicmode);
+ }
+ else
+ {
+ dstClrPtr = color;
+ }
+
+ if (bpmem.dstalpha.enable)
+ dstClrPtr[ALP_C] = bpmem.dstalpha.alpha;
+
+ if (bpmem.blendmode.colorupdate)
+ {
+ Dither(x, y, dstClrPtr);
+ if (bpmem.blendmode.alphaupdate)
+ SetPixelAlphaColor(offset, dstClrPtr);
+ else
+ SetPixelColorOnly(offset, dstClrPtr);
+ }
+ else if (bpmem.blendmode.alphaupdate)
+ {
+ SetPixelAlphaOnly(offset, dstClrPtr[ALP_C]);
+ }
+}
+
+void SetColor(u16 x, u16 y, u8* color)
+{
+ u32 offset = GetColorOffset(x, y);
+ if (bpmem.blendmode.colorupdate)
+ {
+ if (bpmem.blendmode.alphaupdate)
+ SetPixelAlphaColor(offset, color);
+ else
+ SetPixelColorOnly(offset, color);
+ }
+ else if (bpmem.blendmode.alphaupdate)
+ {
+ SetPixelAlphaOnly(offset, color[ALP_C]);
+ }
+}
+
+void SetDepth(u16 x, u16 y, u32 depth)
+{
+ if (bpmem.zmode.updateenable)
+ SetPixelDepth(GetDepthOffset(x, y), depth);
+}
+
+u32 GetColor(u16 x, u16 y)
+{
+ u32 offset = GetColorOffset(x, y);
+ return GetPixelColor(offset);
+}
+
+static u32 VerticalFilter(const std::array<u32, 3>& colors,
+ const std::array<u8, 7>& filterCoefficients)
+{
+ u8 in_colors[3][4];
+ std::memcpy(&in_colors, colors.data(), sizeof(in_colors));
+
+ // Alpha channel is not used
+ u8 out_color[4];
+ out_color[ALP_C] = 0;
+
+ // All Coefficients should sum to 64, otherwise the total brightness will change, which many games
+ // do on purpose to implement a brightness filter across the whole copy.
+ for (int i = BLU_C; i <= RED_C; i++)
+ {
+ // TODO: implement support for multisampling.
+ // In non-multisampling mode:
+ // * Coefficients 2, 3 and 4 sample from the current pixel.
+ // * Coefficients 0 and 1 sample from the pixel above this one
+ // * Coefficients 5 and 6 sample from the pixel below this one
+ int sum =
+ in_colors[0][i] * (filterCoefficients[0] + filterCoefficients[1]) +
+ in_colors[1][i] * (filterCoefficients[2] + filterCoefficients[3] + filterCoefficients[4]) +
+ in_colors[2][i] * (filterCoefficients[5] + filterCoefficients[6]);
+
+ // TODO: this clamping behavior appears to be correct, but isn't confirmed on hardware.
+ out_color[i] = std::min(255, sum >> 6); // clamp larger values to 255
+ }
+
+ u32 out_color32;
+ std::memcpy(&out_color32, out_color, sizeof(out_color32));
+ return out_color32;
+}
+
+static u32 GammaCorrection(u32 color, const float gamma_rcp)
+{
+ u8 in_colors[4];
+ std::memcpy(&in_colors, &color, sizeof(in_colors));
+
+ u8 out_color[4];
+ for (int i = BLU_C; i <= RED_C; i++)
+ {
+ out_color[i] = static_cast<u8>(
+ std::clamp(std::pow(in_colors[i] / 255.0f, gamma_rcp) * 255.0f, 0.0f, 255.0f));
+ }
+
+ u32 out_color32;
+ std::memcpy(&out_color32, out_color, sizeof(out_color32));
+ return out_color32;
+}
+
+// For internal used only, return a non-normalized value, which saves work later.
+static yuv444 ConvertColorToYUV(u32 color)
+{
+ const u8 red = static_cast<u8>(color >> 24);
+ const u8 green = static_cast<u8>(color >> 16);
+ const u8 blue = static_cast<u8>(color >> 8);
+
+ // GameCube/Wii uses the BT.601 standard algorithm for converting to YCbCr; see
+ // http://www.equasys.de/colorconversion.html#YCbCr-RGBColorFormatConversion
+ // These numbers were determined by hardware testing
+ const u16 y = +66 * red + 129 * green + +25 * blue;
+ const s16 u = -38 * red + -74 * green + 112 * blue;
+ const s16 v = 112 * red + -94 * green + -18 * blue;
+ const u8 y_round = static_cast<u8>((y >> 8) + ((y >> 7) & 1));
+ const s8 u_round = static_cast<s8>((u >> 8) + ((u >> 7) & 1));
+ const s8 v_round = static_cast<s8>((v >> 8) + ((v >> 7) & 1));
+ return {y_round, u_round, v_round};
+}
+
+u32 GetDepth(u16 x, u16 y)
+{
+ u32 offset = GetDepthOffset(x, y);
+ return GetPixelDepth(offset);
+}
+
+u8* GetPixelPointer(u16 x, u16 y, bool depth)
+{
+ if (depth)
+ return &efb[GetDepthOffset(x, y)];
+ return &efb[GetColorOffset(x, y)];
+}
+
+void EncodeXFB(u8* xfb_in_ram, u32 memory_stride, const MathUtil::Rectangle<int>& source_rect,
+ float y_scale, float gamma)
+{
+ if (!xfb_in_ram)
+ {
+ WARN_LOG_FMT(VIDEO, "Tried to copy to invalid XFB address");
+ return;
+ }
+
+ const int left = source_rect.left;
+ const int right = source_rect.right;
+ const bool clamp_top = bpmem.triggerEFBCopy.clamp_top;
+ const bool clamp_bottom = bpmem.triggerEFBCopy.clamp_bottom;
+ const float gamma_rcp = 1.0f / gamma;
+ const auto filter_coefficients = bpmem.copyfilter.GetCoefficients();
+
+ // this assumes copies will always start on an even (YU) pixel and the
+ // copy always has an even width, which might not be true.
+ if (left & 1 || right & 1)
+ {
+ WARN_LOG_FMT(VIDEO, "Trying to copy XFB to from unaligned EFB source");
+ // this will show up as wrongly encoded
+ }
+
+ // Scanline buffer, leave room for borders
+ yuv444 scanline[EFB_WIDTH + 2];
+
+ static std::vector<yuv422_packed> source;
+ source.resize(EFB_WIDTH * EFB_HEIGHT);
+ yuv422_packed* src_ptr = &source[0];
+
+ for (int y = source_rect.top; y < source_rect.bottom; y++)
+ {
+ // Clamping behavior
+ // NOTE: when the clamp bits aren't set, the hardware will happily read beyond the EFB,
+ // which returns random garbage from the empty bus (confirmed by hardware tests).
+ //
+ // In our implementation, the garbage just so happens to be the top or bottom row.
+ // Statistically, that could happen.
+ const u16 y_prev = static_cast<u16>(std::max(clamp_top ? source_rect.top : 0, y - 1));
+ const u16 y_next = static_cast<u16>(
+ std::min<int>((clamp_bottom ? source_rect.bottom : EFB_HEIGHT) - 1, y + 1));
+
+ // Get a scanline of YUV pixels in 4:4:4 format
+ for (int i = 1, x = left; x < right; i++, x++)
+ {
+ // Get RGB colors
+ std::array<u32, 3> colors = {{GetColor(x, y_prev), GetColor(x, y), GetColor(x, y_next)}};
+
+ // Vertical Filter (Multisampling resolve, deflicker, brightness)
+ u32 filtered = VerticalFilter(colors, filter_coefficients);
+
+ // Gamma correction happens here.
+ filtered = GammaCorrection(filtered, gamma_rcp);
+
+ scanline[i] = ConvertColorToYUV(filtered);
+ }
+
+ // Flipper clamps the border colors
+ scanline[0] = scanline[1];
+ scanline[right + 1] = scanline[right];
+
+ // And Downsample them to 4:2:2
+ for (int i = 1, x = left; x < right; i += 2, x += 2)
+ {
+ // YU pixel
+ src_ptr[x].Y = scanline[i].Y + 16;
+ // we mix our color differences in 10 bit space so it will round more accurately
+ // U[i] = 1/4 * U[i-1] + 1/2 * U[i] + 1/4 * U[i+1]
+ src_ptr[x].UV = 128 + ((scanline[i - 1].U + (scanline[i].U << 1) + scanline[i + 1].U) >> 2);
+
+ // YV pixel
+ src_ptr[x + 1].Y = scanline[i + 1].Y + 16;
+ // V[i] = 1/4 * V[i-1] + 1/2 * V[i] + 1/4 * V[i+1]
+ src_ptr[x + 1].UV =
+ 128 + ((scanline[i - 1].V + (scanline[i].V << 1) + scanline[i + 1].V) >> 2);
+ }
+ src_ptr += memory_stride;
+ }
+
+ const int src_width = source_rect.GetWidth();
+ const int src_height = source_rect.GetHeight();
+ const int dst_width = src_width;
+ const int dst_height = src_height * y_scale;
+
+ SW::CopyRegion(source.data(), src_width, src_height, reinterpret_cast<yuv422_packed*>(xfb_in_ram),
+ dst_width, dst_height);
+}
+
+bool ZCompare(u16 x, u16 y, u32 z)
+{
+ u32 offset = GetDepthOffset(x, y);
+ u32 depth = GetPixelDepth(offset);
+
+ bool pass;
+
+ switch (bpmem.zmode.func)
+ {
+ case CompareMode::Never:
+ pass = false;
+ break;
+ case CompareMode::Less:
+ pass = z < depth;
+ break;
+ case CompareMode::Equal:
+ pass = z == depth;
+ break;
+ case CompareMode::LEqual:
+ pass = z <= depth;
+ break;
+ case CompareMode::Greater:
+ pass = z > depth;
+ break;
+ case CompareMode::NEqual:
+ pass = z != depth;
+ break;
+ case CompareMode::GEqual:
+ pass = z >= depth;
+ break;
+ case CompareMode::Always:
+ pass = true;
+ break;
+ default:
+ pass = false;
+ ERROR_LOG_FMT(VIDEO, "Bad Z compare mode {}", bpmem.zmode.func);
+ break;
+ }
+
+ if (pass && bpmem.zmode.updateenable)
+ {
+ SetPixelDepth(offset, z);
+ }
+
+ return pass;
+}
+
+u32 GetPerfQueryResult(PerfQueryType type)
+{
+ return perf_values[type];
+}
+
+void ResetPerfQuery()
+{
+ perf_values = {};
+}
+
+void IncPerfCounterQuadCount(PerfQueryType type)
+{
+ // NOTE: hardware doesn't process individual pixels but quads instead.
+ // Current software renderer architecture works on pixels though, so
+ // we have this "quad" hack here to only increment the registers on
+ // every fourth rendered pixel
+ static u32 quad[PQ_NUM_MEMBERS];
+ if (++quad[type] != 3)
+ return;
+ quad[type] = 0;
+ ++perf_values[type];
+}
+} // namespace EfbInterface
+
+namespace SW
+{
+
+void SWEFBInterface::ReinterpretPixelData(EFBReinterpretType convtype)
+{
+}
+
+void SWEFBInterface::PokeColor(u16 x, u16 y, u32 color)
+{
+}
+
+void SWEFBInterface::PokeDepth(u16 x, u16 y, u32 depth)
+{
+}
+
+u32 SWEFBInterface::PeekColorInternal(u16 x, u16 y)
+{
+ const u32 color = EfbInterface::GetColor(x, y);
+
+ // rgba to argb
+ u32 value = (color >> 8) | (color & 0xff) << 24;
+
+ return value;
+}
+
+u32 SWEFBInterface::PeekDepth(u16 x, u16 y)
+{
+ return EfbInterface::GetDepth(x, y);
+}
+
+} // namespace SW