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https://github.com/dolphin-emu/dolphin.git
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5ef8a7973e
It stores both the konst selection value for alpha and color channels (for two tev stages per ksel), and half of a swap table row (there are 4 total swap tables, which can be used for swizzling the rasterized color and the texture color, and indices selecting which tables to use are stored per tev stage in the alpha combiner). Since these are indexed very differently, the old code was hard to follow.
1909 lines
76 KiB
C++
1909 lines
76 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "VideoCommon/PixelShaderGen.h"
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#include <cmath>
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#include <cstdio>
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#include <fmt/format.h>
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#include "Common/Assert.h"
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#include "Common/CommonTypes.h"
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#include "Common/EnumMap.h"
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#include "Common/Logging/Log.h"
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#include "VideoCommon/BPMemory.h"
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#include "VideoCommon/BoundingBox.h"
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#include "VideoCommon/DriverDetails.h"
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#include "VideoCommon/LightingShaderGen.h"
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#include "VideoCommon/NativeVertexFormat.h"
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#include "VideoCommon/RenderBase.h"
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#include "VideoCommon/RenderState.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VideoCommon.h"
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#include "VideoCommon/VideoConfig.h"
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#include "VideoCommon/XFMemory.h" // for texture projection mode
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// TODO: Get rid of these
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enum : u32
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{
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C_COLORMATRIX = 0, // 0
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C_COLORS = 0, // 0
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C_KCOLORS = C_COLORS + 4, // 4
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C_ALPHA = C_KCOLORS + 4, // 8
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C_TEXDIMS = C_ALPHA + 1, // 9
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C_ZBIAS = C_TEXDIMS + 8, // 17
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C_INDTEXSCALE = C_ZBIAS + 2, // 19
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C_INDTEXMTX = C_INDTEXSCALE + 2, // 21
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C_FOGCOLOR = C_INDTEXMTX + 6, // 27
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C_FOGI = C_FOGCOLOR + 1, // 28
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C_FOGF = C_FOGI + 1, // 29
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C_ZSLOPE = C_FOGF + 2, // 31
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C_EFBSCALE = C_ZSLOPE + 1, // 32
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C_PENVCONST_END = C_EFBSCALE + 1
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};
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constexpr Common::EnumMap<const char*, KonstSel::K3_A> tev_ksel_table_c{
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"255,255,255", // 1 = 0x00
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"223,223,223", // 7_8 = 0x01
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"191,191,191", // 3_4 = 0x02
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"159,159,159", // 5_8 = 0x03
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"128,128,128", // 1_2 = 0x04
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"96,96,96", // 3_8 = 0x05
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"64,64,64", // 1_4 = 0x06
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"32,32,32", // 1_8 = 0x07
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"0,0,0", // INVALID = 0x08
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"0,0,0", // INVALID = 0x09
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"0,0,0", // INVALID = 0x0a
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"0,0,0", // INVALID = 0x0b
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I_KCOLORS "[0].rgb", // K0 = 0x0C
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I_KCOLORS "[1].rgb", // K1 = 0x0D
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I_KCOLORS "[2].rgb", // K2 = 0x0E
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I_KCOLORS "[3].rgb", // K3 = 0x0F
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I_KCOLORS "[0].rrr", // K0_R = 0x10
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I_KCOLORS "[1].rrr", // K1_R = 0x11
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I_KCOLORS "[2].rrr", // K2_R = 0x12
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I_KCOLORS "[3].rrr", // K3_R = 0x13
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I_KCOLORS "[0].ggg", // K0_G = 0x14
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I_KCOLORS "[1].ggg", // K1_G = 0x15
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I_KCOLORS "[2].ggg", // K2_G = 0x16
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I_KCOLORS "[3].ggg", // K3_G = 0x17
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I_KCOLORS "[0].bbb", // K0_B = 0x18
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I_KCOLORS "[1].bbb", // K1_B = 0x19
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I_KCOLORS "[2].bbb", // K2_B = 0x1A
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I_KCOLORS "[3].bbb", // K3_B = 0x1B
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I_KCOLORS "[0].aaa", // K0_A = 0x1C
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I_KCOLORS "[1].aaa", // K1_A = 0x1D
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I_KCOLORS "[2].aaa", // K2_A = 0x1E
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I_KCOLORS "[3].aaa", // K3_A = 0x1F
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};
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constexpr Common::EnumMap<const char*, KonstSel::K3_A> tev_ksel_table_a{
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"255", // 1 = 0x00
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"223", // 7_8 = 0x01
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"191", // 3_4 = 0x02
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"159", // 5_8 = 0x03
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"128", // 1_2 = 0x04
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"96", // 3_8 = 0x05
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"64", // 1_4 = 0x06
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"32", // 1_8 = 0x07
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"0", // INVALID = 0x08
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"0", // INVALID = 0x09
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"0", // INVALID = 0x0a
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"0", // INVALID = 0x0b
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"0", // INVALID = 0x0c
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"0", // INVALID = 0x0d
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"0", // INVALID = 0x0e
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"0", // INVALID = 0x0f
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I_KCOLORS "[0].r", // K0_R = 0x10
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I_KCOLORS "[1].r", // K1_R = 0x11
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I_KCOLORS "[2].r", // K2_R = 0x12
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I_KCOLORS "[3].r", // K3_R = 0x13
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I_KCOLORS "[0].g", // K0_G = 0x14
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I_KCOLORS "[1].g", // K1_G = 0x15
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I_KCOLORS "[2].g", // K2_G = 0x16
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I_KCOLORS "[3].g", // K3_G = 0x17
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I_KCOLORS "[0].b", // K0_B = 0x18
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I_KCOLORS "[1].b", // K1_B = 0x19
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I_KCOLORS "[2].b", // K2_B = 0x1A
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I_KCOLORS "[3].b", // K3_B = 0x1B
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I_KCOLORS "[0].a", // K0_A = 0x1C
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I_KCOLORS "[1].a", // K1_A = 0x1D
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I_KCOLORS "[2].a", // K2_A = 0x1E
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I_KCOLORS "[3].a", // K3_A = 0x1F
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};
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constexpr Common::EnumMap<const char*, TevColorArg::Zero> tev_c_input_table{
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"prev.rgb", // CPREV,
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"prev.aaa", // APREV,
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"c0.rgb", // C0,
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"c0.aaa", // A0,
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"c1.rgb", // C1,
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"c1.aaa", // A1,
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"c2.rgb", // C2,
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"c2.aaa", // A2,
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"textemp.rgb", // TEXC,
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"textemp.aaa", // TEXA,
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"rastemp.rgb", // RASC,
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"rastemp.aaa", // RASA,
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"int3(255,255,255)", // ONE
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"int3(128,128,128)", // HALF
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"konsttemp.rgb", // KONST
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"int3(0,0,0)", // ZERO
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};
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constexpr Common::EnumMap<const char*, TevAlphaArg::Zero> tev_a_input_table{
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"prev.a", // APREV,
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"c0.a", // A0,
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"c1.a", // A1,
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"c2.a", // A2,
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"textemp.a", // TEXA,
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"rastemp.a", // RASA,
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"konsttemp.a", // KONST, (hw1 had quarter)
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"0", // ZERO
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};
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constexpr Common::EnumMap<const char*, RasColorChan::Zero> tev_ras_table{
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"iround(col0 * 255.0)",
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"iround(col1 * 255.0)",
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"ERROR13", // 2
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"ERROR14", // 3
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"ERROR15", // 4
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"(int4(1, 1, 1, 1) * alphabump)", // bump alpha (0..248)
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"(int4(1, 1, 1, 1) * (alphabump | (alphabump >> 5)))", // normalized bump alpha (0..255)
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"int4(0, 0, 0, 0)", // zero
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};
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constexpr Common::EnumMap<const char*, TevOutput::Color2> tev_c_output_table{
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"prev.rgb",
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"c0.rgb",
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"c1.rgb",
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"c2.rgb",
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};
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constexpr Common::EnumMap<const char*, TevOutput::Color2> tev_a_output_table{
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"prev.a",
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"c0.a",
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"c1.a",
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"c2.a",
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};
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constexpr Common::EnumMap<char, ColorChannel::Alpha> rgba_swizzle{'r', 'g', 'b', 'a'};
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PixelShaderUid GetPixelShaderUid()
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{
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PixelShaderUid out;
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pixel_shader_uid_data* const uid_data = out.GetUidData();
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uid_data->useDstAlpha = bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate &&
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bpmem.zcontrol.pixel_format == PixelFormat::RGBA6_Z24;
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uid_data->genMode_numindstages = bpmem.genMode.numindstages;
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uid_data->genMode_numtevstages = bpmem.genMode.numtevstages;
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uid_data->genMode_numtexgens = bpmem.genMode.numtexgens;
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uid_data->bounding_box = g_ActiveConfig.bBBoxEnable && g_renderer->IsBBoxEnabled();
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uid_data->rgba6_format =
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bpmem.zcontrol.pixel_format == PixelFormat::RGBA6_Z24 && !g_ActiveConfig.bForceTrueColor;
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uid_data->dither = bpmem.blendmode.dither && uid_data->rgba6_format;
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uid_data->uint_output = bpmem.blendmode.UseLogicOp();
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u32 numStages = uid_data->genMode_numtevstages + 1;
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uid_data->Pretest = bpmem.alpha_test.TestResult();
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uid_data->ztest = bpmem.GetEmulatedZ();
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if (uid_data->ztest == EmulatedZ::Early &&
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(g_ActiveConfig.bFastDepthCalc ||
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bpmem.alpha_test.TestResult() == AlphaTestResult::Undetermined)
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// We can't allow early_ztest for zfreeze because depth is overridden per-pixel.
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// This means it's impossible for zcomploc to be emulated on a zfrozen polygon.
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&& !bpmem.genMode.zfreeze)
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{
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uid_data->ztest = EmulatedZ::ForcedEarly;
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}
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const bool forced_early_z = uid_data->ztest == EmulatedZ::ForcedEarly;
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const bool per_pixel_depth =
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(bpmem.ztex2.op != ZTexOp::Disabled && uid_data->ztest == EmulatedZ::Late) ||
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(!g_ActiveConfig.bFastDepthCalc && bpmem.zmode.testenable && !forced_early_z) ||
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(bpmem.zmode.testenable && bpmem.genMode.zfreeze);
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uid_data->per_pixel_depth = per_pixel_depth;
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if (g_ActiveConfig.bEnablePixelLighting)
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{
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uid_data->numColorChans = xfmem.numChan.numColorChans;
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GetLightingShaderUid(uid_data->lighting);
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}
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if (uid_data->genMode_numtexgens > 0)
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{
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for (unsigned int i = 0; i < uid_data->genMode_numtexgens; ++i)
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{
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// optional perspective divides
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uid_data->texMtxInfo_n_projection |= static_cast<u32>(xfmem.texMtxInfo[i].projection.Value())
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<< i;
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}
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}
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// indirect texture map lookup
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int nIndirectStagesUsed = 0;
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for (unsigned int i = 0; i < numStages; ++i)
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{
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if (bpmem.tevind[i].IsActive())
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nIndirectStagesUsed |= 1 << bpmem.tevind[i].bt;
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}
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uid_data->nIndirectStagesUsed = nIndirectStagesUsed;
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for (u32 i = 0; i < uid_data->genMode_numindstages; ++i)
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{
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if (uid_data->nIndirectStagesUsed & (1 << i))
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uid_data->SetTevindrefValues(i, bpmem.tevindref.getTexCoord(i), bpmem.tevindref.getTexMap(i));
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}
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for (unsigned int n = 0; n < numStages; n++)
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{
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uid_data->stagehash[n].tevorders_texcoord = bpmem.tevorders[n / 2].getTexCoord(n & 1);
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uid_data->stagehash[n].tevind = bpmem.tevind[n].hex;
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TevStageCombiner::ColorCombiner& cc = bpmem.combiners[n].colorC;
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TevStageCombiner::AlphaCombiner& ac = bpmem.combiners[n].alphaC;
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uid_data->stagehash[n].cc = cc.hex & 0xFFFFFF;
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uid_data->stagehash[n].ac = ac.hex & 0xFFFFF0; // Storing rswap and tswap later
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if (cc.a == TevColorArg::RasAlpha || cc.a == TevColorArg::RasColor ||
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cc.b == TevColorArg::RasAlpha || cc.b == TevColorArg::RasColor ||
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cc.c == TevColorArg::RasAlpha || cc.c == TevColorArg::RasColor ||
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cc.d == TevColorArg::RasAlpha || cc.d == TevColorArg::RasColor ||
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ac.a == TevAlphaArg::RasAlpha || ac.b == TevAlphaArg::RasAlpha ||
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ac.c == TevAlphaArg::RasAlpha || ac.d == TevAlphaArg::RasAlpha)
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{
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const auto ras_swap_table = bpmem.tevksel.GetSwapTable(bpmem.combiners[n].alphaC.rswap);
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uid_data->stagehash[n].ras_swap_r = ras_swap_table[ColorChannel::Red];
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uid_data->stagehash[n].ras_swap_g = ras_swap_table[ColorChannel::Green];
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uid_data->stagehash[n].ras_swap_b = ras_swap_table[ColorChannel::Blue];
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uid_data->stagehash[n].ras_swap_a = ras_swap_table[ColorChannel::Alpha];
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uid_data->stagehash[n].tevorders_colorchan = bpmem.tevorders[n / 2].getColorChan(n & 1);
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}
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uid_data->stagehash[n].tevorders_enable = bpmem.tevorders[n / 2].getEnable(n & 1);
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if (uid_data->stagehash[n].tevorders_enable)
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{
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const auto tex_swap_table = bpmem.tevksel.GetSwapTable(bpmem.combiners[n].alphaC.tswap);
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uid_data->stagehash[n].tex_swap_r = tex_swap_table[ColorChannel::Red];
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uid_data->stagehash[n].tex_swap_g = tex_swap_table[ColorChannel::Green];
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uid_data->stagehash[n].tex_swap_b = tex_swap_table[ColorChannel::Blue];
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uid_data->stagehash[n].tex_swap_a = tex_swap_table[ColorChannel::Alpha];
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uid_data->stagehash[n].tevorders_texmap = bpmem.tevorders[n / 2].getTexMap(n & 1);
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}
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if (cc.a == TevColorArg::Konst || cc.b == TevColorArg::Konst || cc.c == TevColorArg::Konst ||
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cc.d == TevColorArg::Konst || ac.a == TevAlphaArg::Konst || ac.b == TevAlphaArg::Konst ||
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ac.c == TevAlphaArg::Konst || ac.d == TevAlphaArg::Konst)
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{
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uid_data->stagehash[n].tevksel_kc = bpmem.tevksel.GetKonstColor(n);
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uid_data->stagehash[n].tevksel_ka = bpmem.tevksel.GetKonstAlpha(n);
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}
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}
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#define MY_STRUCT_OFFSET(str, elem) ((u32)((u64) & (str).elem - (u64) & (str)))
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uid_data->num_values = (g_ActiveConfig.bEnablePixelLighting) ?
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sizeof(*uid_data) :
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MY_STRUCT_OFFSET(*uid_data, stagehash[numStages]);
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// NOTE: Fragment may not be discarded if alpha test always fails and early depth test is enabled
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// (in this case we need to write a depth value if depth test passes regardless of the alpha
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// testing result)
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if (uid_data->Pretest == AlphaTestResult::Undetermined ||
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(uid_data->Pretest == AlphaTestResult::Fail && uid_data->ztest == EmulatedZ::Late))
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{
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uid_data->alpha_test_comp0 = bpmem.alpha_test.comp0;
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uid_data->alpha_test_comp1 = bpmem.alpha_test.comp1;
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uid_data->alpha_test_logic = bpmem.alpha_test.logic;
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}
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uid_data->zfreeze = bpmem.genMode.zfreeze;
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uid_data->ztex_op = bpmem.ztex2.op;
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uid_data->fog_fsel = bpmem.fog.c_proj_fsel.fsel;
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uid_data->fog_proj = bpmem.fog.c_proj_fsel.proj;
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uid_data->fog_RangeBaseEnabled = bpmem.fogRange.Base.Enabled;
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return out;
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}
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void ClearUnusedPixelShaderUidBits(APIType api_type, const ShaderHostConfig& host_config,
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PixelShaderUid* uid)
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{
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pixel_shader_uid_data* const uid_data = uid->GetUidData();
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// OpenGL and Vulkan convert implicitly normalized color outputs to their uint representation.
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// Therefore, it is not necessary to use a uint output on these backends. We also disable the
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// uint output when logic op is not supported (i.e. driver/device does not support D3D11.1).
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if (api_type != APIType::D3D || !host_config.backend_logic_op)
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uid_data->uint_output = 0;
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// If bounding box is enabled when a UID cache is created, then later disabled, we shouldn't
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// emit the bounding box portion of the shader.
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uid_data->bounding_box &= host_config.bounding_box & host_config.backend_bbox;
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}
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void WritePixelShaderCommonHeader(ShaderCode& out, APIType api_type,
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const ShaderHostConfig& host_config, bool bounding_box)
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{
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// dot product for integer vectors
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out.Write("int idot(int3 x, int3 y)\n"
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"{{\n"
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"\tint3 tmp = x * y;\n"
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"\treturn tmp.x + tmp.y + tmp.z;\n"
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"}}\n");
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out.Write("int idot(int4 x, int4 y)\n"
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"{{\n"
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"\tint4 tmp = x * y;\n"
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"\treturn tmp.x + tmp.y + tmp.z + tmp.w;\n"
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"}}\n\n");
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// rounding + casting to integer at once in a single function
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out.Write("int iround(float x) {{ return int (round(x)); }}\n"
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"int2 iround(float2 x) {{ return int2(round(x)); }}\n"
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"int3 iround(float3 x) {{ return int3(round(x)); }}\n"
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"int4 iround(float4 x) {{ return int4(round(x)); }}\n\n");
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out.Write("SAMPLER_BINDING(0) uniform sampler2DArray samp[8];\n");
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out.Write("\n");
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out.Write("UBO_BINDING(std140, 1) uniform PSBlock {{\n");
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out.Write("\tint4 " I_COLORS "[4];\n"
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"\tint4 " I_KCOLORS "[4];\n"
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"\tint4 " I_ALPHA ";\n"
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"\tint4 " I_TEXDIMS "[8];\n"
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"\tint4 " I_ZBIAS "[2];\n"
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"\tint4 " I_INDTEXSCALE "[2];\n"
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"\tint4 " I_INDTEXMTX "[6];\n"
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"\tint4 " I_FOGCOLOR ";\n"
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"\tint4 " I_FOGI ";\n"
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"\tfloat4 " I_FOGF ";\n"
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"\tfloat4 " I_FOGRANGE "[3];\n"
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"\tfloat4 " I_ZSLOPE ";\n"
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"\tfloat2 " I_EFBSCALE ";\n"
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"\tuint bpmem_genmode;\n"
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"\tuint bpmem_alphaTest;\n"
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"\tuint bpmem_fogParam3;\n"
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"\tuint bpmem_fogRangeBase;\n"
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"\tuint bpmem_dstalpha;\n"
|
|
"\tuint bpmem_ztex_op;\n"
|
|
"\tbool bpmem_late_ztest;\n"
|
|
"\tbool bpmem_rgba6_format;\n"
|
|
"\tbool bpmem_dither;\n"
|
|
"\tbool bpmem_bounding_box;\n"
|
|
"\tuint4 bpmem_pack1[16];\n" // .xy - combiners, .z - tevind
|
|
"\tuint4 bpmem_pack2[8];\n" // .x - tevorder, .y - tevksel, .zw - SamplerState tm0/tm1
|
|
"\tint4 konstLookup[32];\n"
|
|
"\tbool blend_enable;\n"
|
|
"\tuint blend_src_factor;\n"
|
|
"\tuint blend_src_factor_alpha;\n"
|
|
"\tuint blend_dst_factor;\n"
|
|
"\tuint blend_dst_factor_alpha;\n"
|
|
"\tbool blend_subtract;\n"
|
|
"\tbool blend_subtract_alpha;\n"
|
|
"\tbool logic_op_enable;\n"
|
|
"\tuint logic_op_mode;\n"
|
|
"}};\n\n");
|
|
out.Write("#define bpmem_combiners(i) (bpmem_pack1[(i)].xy)\n"
|
|
"#define bpmem_tevind(i) (bpmem_pack1[(i)].z)\n"
|
|
"#define bpmem_iref(i) (bpmem_pack1[(i)].w)\n"
|
|
"#define bpmem_tevorder(i) (bpmem_pack2[(i)].x)\n"
|
|
"#define bpmem_tevksel(i) (bpmem_pack2[(i)].y)\n"
|
|
"#define samp_texmode0(i) (bpmem_pack2[(i)].z)\n"
|
|
"#define samp_texmode1(i) (bpmem_pack2[(i)].w)\n\n");
|
|
|
|
if (host_config.per_pixel_lighting)
|
|
{
|
|
out.Write("{}", s_lighting_struct);
|
|
|
|
out.Write("UBO_BINDING(std140, 2) uniform VSBlock {{\n");
|
|
|
|
out.Write("{}", s_shader_uniforms);
|
|
out.Write("}};\n");
|
|
}
|
|
|
|
if (bounding_box)
|
|
{
|
|
out.Write("SSBO_BINDING(0) coherent buffer BBox {{\n"
|
|
" int bbox_data[4];\n"
|
|
"}};");
|
|
|
|
out.Write(R"(
|
|
#define bbox_left bbox_data[0]
|
|
#define bbox_right bbox_data[1]
|
|
#define bbox_top bbox_data[2]
|
|
#define bbox_bottom bbox_data[3]
|
|
|
|
void UpdateBoundingBoxBuffer(int2 min_pos, int2 max_pos) {{
|
|
if (bbox_left > min_pos.x)
|
|
atomicMin(bbox_left, min_pos.x);
|
|
if (bbox_right < max_pos.x)
|
|
atomicMax(bbox_right, max_pos.x);
|
|
if (bbox_top > min_pos.y)
|
|
atomicMin(bbox_top, min_pos.y);
|
|
if (bbox_bottom < max_pos.y)
|
|
atomicMax(bbox_bottom, max_pos.y);
|
|
}}
|
|
|
|
void UpdateBoundingBox(float2 rawpos) {{
|
|
// We only want to include coordinates for pixels aligned with the native resolution pixel centers.
|
|
// This makes bounding box sizes more accurate (though not perfect) at higher resolutions,
|
|
// avoiding EFB copy buffer overflow in affected games.
|
|
//
|
|
// For a more detailed explanation, see https://dolp.in/pr9801
|
|
int2 int_efb_scale = iround(1.0 / {efb_scale}.xy);
|
|
if (int(rawpos.x) % int_efb_scale.x != int_efb_scale.x >> 1 ||
|
|
int(rawpos.y) % int_efb_scale.y != int_efb_scale.y >> 1) // right shift for fast divide by two
|
|
{{
|
|
return;
|
|
}}
|
|
|
|
// The rightmost shaded pixel is not included in the right bounding box register,
|
|
// such that width = right - left + 1. This has been verified on hardware.
|
|
int2 pos = int2(rawpos * {efb_scale}.xy);
|
|
|
|
#ifdef API_OPENGL
|
|
// We need to invert the Y coordinate due to OpenGL's lower-left origin
|
|
pos.y = {efb_height} - pos.y - 1;
|
|
#endif
|
|
|
|
// The GC/Wii GPU rasterizes in 2x2 pixel groups, so bounding box values will be rounded to the
|
|
// extents of these groups, rather than the exact pixel.
|
|
int2 pos_tl = pos & ~1; // round down to even
|
|
int2 pos_br = pos | 1; // round up to odd
|
|
|
|
#ifdef SUPPORTS_SUBGROUP_REDUCTION
|
|
if (CAN_USE_SUBGROUP_REDUCTION) {{
|
|
int2 min_pos = IS_HELPER_INVOCATION ? int2(2147483647, 2147483647) : pos_tl;
|
|
int2 max_pos = IS_HELPER_INVOCATION ? int2(-2147483648, -2147483648) : pos_br;
|
|
SUBGROUP_MIN(min_pos);
|
|
SUBGROUP_MAX(max_pos);
|
|
if (IS_FIRST_ACTIVE_INVOCATION)
|
|
UpdateBoundingBoxBuffer(min_pos, max_pos);
|
|
}} else {{
|
|
UpdateBoundingBoxBuffer(pos_tl, pos_br);
|
|
}}
|
|
#else
|
|
UpdateBoundingBoxBuffer(pos_tl, pos_br);
|
|
#endif
|
|
}}
|
|
|
|
)",
|
|
fmt::arg("efb_height", EFB_HEIGHT), fmt::arg("efb_scale", I_EFBSCALE));
|
|
}
|
|
|
|
if (host_config.manual_texture_sampling)
|
|
{
|
|
out.Write(R"(
|
|
int4 readTexture(in sampler2DArray tex, uint u, uint v, int layer, int lod) {{
|
|
return iround(texelFetch(tex, int3(u, v, layer), lod) * 255.0);
|
|
}}
|
|
|
|
int4 readTextureLinear(in sampler2DArray tex, uint2 uv1, uint2 uv2, int layer, int lod, int2 frac_uv) {{)");
|
|
|
|
out.Write(R"(
|
|
int4 result =
|
|
readTexture(tex, uv1.x, uv1.y, layer, lod) * (128 - frac_uv.x) * (128 - frac_uv.y) +
|
|
readTexture(tex, uv2.x, uv1.y, layer, lod) * ( frac_uv.x) * (128 - frac_uv.y) +
|
|
readTexture(tex, uv1.x, uv2.y, layer, lod) * (128 - frac_uv.x) * ( frac_uv.y) +
|
|
readTexture(tex, uv2.x, uv2.y, layer, lod) * ( frac_uv.x) * ( frac_uv.y);
|
|
return result >> 14;
|
|
}}
|
|
)");
|
|
|
|
if (host_config.manual_texture_sampling_custom_texture_sizes)
|
|
{
|
|
// This is slower, and doesn't result in the same odd behavior that happens on console when
|
|
// wrapping with non-power-of-2 sizes, but it's fine for custom textures to have non-console
|
|
// behavior.
|
|
out.Write(R"(
|
|
// Both GLSL and HLSL produce undefined values when the modulo operator (%) is used with a negative
|
|
// dividend and a positive divisor. We want a positive value such that SafeModulo(-1, 3) is 2.
|
|
int SafeModulo(int dividend, int divisor) {{
|
|
if (dividend >= 0) {{
|
|
return dividend % divisor;
|
|
}} else {{
|
|
// This works because ~x is the same as -x - 1.
|
|
// `~x % 5` over -5 to -1 gives 4, 3, 2, 1, 0. `4 - (~x % 5)` gives 0, 1, 2, 3, 4.
|
|
return (divisor - 1) - (~dividend % divisor);
|
|
}}
|
|
}}
|
|
|
|
uint WrapCoord(int coord, uint wrap, int size) {{
|
|
switch (wrap) {{
|
|
case {:s}:
|
|
default: // confirmed that clamp is used for invalid (3) via hardware test
|
|
return uint(clamp(coord, 0, size - 1));
|
|
case {:s}:
|
|
return uint(SafeModulo(coord, size)); // coord % size
|
|
case {:s}:
|
|
if (SafeModulo(coord, 2 * size) >= size) {{ // coord % (2 * size)
|
|
coord = ~coord;
|
|
}}
|
|
return uint(SafeModulo(coord, size)); // coord % size
|
|
}}
|
|
}}
|
|
)",
|
|
WrapMode::Clamp, WrapMode::Repeat, WrapMode::Mirror);
|
|
}
|
|
else
|
|
{
|
|
out.Write(R"(
|
|
uint WrapCoord(int coord, uint wrap, int size) {{
|
|
switch (wrap) {{
|
|
case {:s}:
|
|
default: // confirmed that clamp is used for invalid (3) via hardware test
|
|
return uint(clamp(coord, 0, size - 1));
|
|
case {:s}:
|
|
return uint(coord & (size - 1));
|
|
case {:s}:
|
|
if ((coord & size) != 0) {{
|
|
coord = ~coord;
|
|
}}
|
|
return uint(coord & (size - 1));
|
|
}}
|
|
}}
|
|
)",
|
|
WrapMode::Clamp, WrapMode::Repeat, WrapMode::Mirror);
|
|
}
|
|
}
|
|
|
|
out.Write("\nint4 sampleTexture(uint texmap, in sampler2DArray tex, int2 uv, int layer) {{\n");
|
|
|
|
if (!host_config.manual_texture_sampling)
|
|
{
|
|
out.Write(" float size_s = float(" I_TEXDIMS "[texmap].x * 128);\n"
|
|
" float size_t = float(" I_TEXDIMS "[texmap].y * 128);\n"
|
|
" float3 coords = float3(float(uv.x) / size_s, float(uv.y) / size_t, layer);\n");
|
|
if (!host_config.backend_sampler_lod_bias)
|
|
{
|
|
out.Write(" uint texmode0 = samp_texmode0(texmap);\n"
|
|
" float lod_bias = float({}) / 256.0f;\n"
|
|
" return iround(255.0 * texture(tex, coords, lod_bias));\n",
|
|
BitfieldExtract<&SamplerState::TM0::lod_bias>("texmode0"));
|
|
}
|
|
else
|
|
{
|
|
out.Write(" return iround(255.0 * texture(tex, coords));\n");
|
|
}
|
|
|
|
out.Write("}}\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write(R"(
|
|
uint texmode0 = samp_texmode0(texmap);
|
|
uint texmode1 = samp_texmode1(texmap);
|
|
|
|
uint wrap_s = {};
|
|
uint wrap_t = {};
|
|
bool mag_linear = {} != 0u;
|
|
bool mipmap_linear = {} != 0u;
|
|
bool min_linear = {} != 0u;
|
|
bool diag_lod = {} != 0u;
|
|
int lod_bias = {};
|
|
// uint max_aniso = TODO;
|
|
bool lod_clamp = {} != 0u;
|
|
int min_lod = int({});
|
|
int max_lod = int({});
|
|
)",
|
|
BitfieldExtract<&SamplerState::TM0::wrap_u>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::wrap_v>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::mag_filter>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::mipmap_filter>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::min_filter>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::diag_lod>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::lod_bias>("texmode0"),
|
|
// BitfieldExtract<&SamplerState::TM0::max_aniso>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM0::lod_clamp>("texmode0"),
|
|
BitfieldExtract<&SamplerState::TM1::min_lod>("texmode1"),
|
|
BitfieldExtract<&SamplerState::TM1::max_lod>("texmode1"));
|
|
|
|
if (host_config.manual_texture_sampling_custom_texture_sizes)
|
|
{
|
|
out.Write(R"(
|
|
int native_size_s = )" I_TEXDIMS R"([texmap].x;
|
|
int native_size_t = )" I_TEXDIMS R"([texmap].y;
|
|
)");
|
|
|
|
out.Write(R"(
|
|
int3 size = textureSize(tex, 0);
|
|
int size_s = size.x;
|
|
int size_t = size.y;
|
|
)");
|
|
if (g_ActiveConfig.backend_info.bSupportsTextureQueryLevels)
|
|
{
|
|
out.Write(" int number_of_levels = textureQueryLevels(tex);\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write(" int number_of_levels = 256; // textureQueryLevels is not supported\n");
|
|
ERROR_LOG_FMT(VIDEO, "textureQueryLevels is not supported! Odd graphical results may "
|
|
"occur if custom textures are in use!");
|
|
}
|
|
|
|
out.Write(R"(
|
|
// Prevent out-of-bounds LOD values when using custom textures
|
|
max_lod = min(max_lod, (number_of_levels - 1) << 4);
|
|
// Rescale uv to account for the new texture size
|
|
uv.x = (uv.x * size_s) / native_size_s;
|
|
uv.y = (uv.y * size_t) / native_size_t;
|
|
)");
|
|
}
|
|
else
|
|
{
|
|
out.Write(R"(
|
|
int size_s = )" I_TEXDIMS R"([texmap].x;
|
|
int size_t = )" I_TEXDIMS R"([texmap].y;
|
|
)");
|
|
}
|
|
|
|
if (g_ActiveConfig.backend_info.bSupportsCoarseDerivatives)
|
|
{
|
|
// The software renderer uses the equivalent of coarse derivatives, so use them here for
|
|
// consistency. This hasn't been hardware tested.
|
|
// Note that bSupportsCoarseDerivatives being false only means dFdxCoarse and dFdxFine don't
|
|
// exist. The GPU may still implement dFdx using coarse derivatives; we just don't have the
|
|
// ability to specifically require it.
|
|
out.Write(R"(
|
|
float2 uv_delta_x = abs(dFdxCoarse(float2(uv)));
|
|
float2 uv_delta_y = abs(dFdyCoarse(float2(uv)));
|
|
)");
|
|
}
|
|
else
|
|
{
|
|
out.Write(R"(
|
|
float2 uv_delta_x = abs(dFdx(float2(uv)));
|
|
float2 uv_delta_y = abs(dFdy(float2(uv)));
|
|
)");
|
|
}
|
|
|
|
// TODO: LOD bias is normally S2.5 (Dolphin uses S7.8 for arbitrary mipmap detection and higher
|
|
// IRs), but (at least per the software renderer) actual LOD is S28.4. How does this work?
|
|
// Also, note that we can make some assumptions due to use of a SamplerState version of the BP
|
|
// configuration, which tidies things compared to whatever nonsense games can put in.
|
|
out.Write(R"(
|
|
float2 uv_delta = diag_lod ? uv_delta_x + uv_delta_y : max(uv_delta_x, uv_delta_y);
|
|
float max_delta = max(uv_delta.x / 128.0, uv_delta.y / 128.0);
|
|
// log2(x) is undefined if x <= 0, but in practice it seems log2(0) is -infinity, which becomes INT_MIN.
|
|
// If lod_bias is negative, adding it to INT_MIN causes an underflow, resulting in a large positive value.
|
|
// Hardware testing indicates that min_lod should be used when the derivative is 0.
|
|
int lod = max_delta == 0.0 ? min_lod : int(floor(log2(max_delta) * 16.0)) + (lod_bias >> 4);
|
|
|
|
bool is_linear = (lod > 0) ? min_linear : mag_linear;
|
|
lod = clamp(lod, min_lod, max_lod);
|
|
int base_lod = lod >> 4;
|
|
int frac_lod = lod & 15;
|
|
if (!mipmap_linear && frac_lod >= 8) {{
|
|
// Round to nearest LOD in point mode
|
|
base_lod++;
|
|
}}
|
|
|
|
if (is_linear) {{
|
|
uint2 texuv1 = uint2(
|
|
WrapCoord(((uv.x >> base_lod) - 64) >> 7, wrap_s, size_s >> base_lod),
|
|
WrapCoord(((uv.y >> base_lod) - 64) >> 7, wrap_t, size_t >> base_lod));
|
|
uint2 texuv2 = uint2(
|
|
WrapCoord(((uv.x >> base_lod) + 64) >> 7, wrap_s, size_s >> base_lod),
|
|
WrapCoord(((uv.y >> base_lod) + 64) >> 7, wrap_t, size_t >> base_lod));
|
|
int2 frac_uv = int2(((uv.x >> base_lod) - 64) & 0x7f, ((uv.y >> base_lod) - 64) & 0x7f);
|
|
|
|
int4 result = readTextureLinear(tex, texuv1, texuv2, layer, base_lod, frac_uv);
|
|
|
|
if (frac_lod != 0 && mipmap_linear) {{
|
|
texuv1 = uint2(
|
|
WrapCoord(((uv.x >> (base_lod + 1)) - 64) >> 7, wrap_s, size_s >> (base_lod + 1)),
|
|
WrapCoord(((uv.y >> (base_lod + 1)) - 64) >> 7, wrap_t, size_t >> (base_lod + 1)));
|
|
texuv2 = uint2(
|
|
WrapCoord(((uv.x >> (base_lod + 1)) + 64) >> 7, wrap_s, size_s >> (base_lod + 1)),
|
|
WrapCoord(((uv.y >> (base_lod + 1)) + 64) >> 7, wrap_t, size_t >> (base_lod + 1)));
|
|
frac_uv = int2(((uv.x >> (base_lod + 1)) - 64) & 0x7f, ((uv.y >> (base_lod + 1)) - 64) & 0x7f);
|
|
|
|
result *= 16 - frac_lod;
|
|
result += readTextureLinear(tex, texuv1, texuv2, layer, base_lod + 1, frac_uv) * frac_lod;
|
|
result >>= 4;
|
|
}}
|
|
|
|
return result;
|
|
}} else {{
|
|
uint2 texuv = uint2(
|
|
WrapCoord(uv.x >> (7 + base_lod), wrap_s, size_s >> base_lod),
|
|
WrapCoord(uv.y >> (7 + base_lod), wrap_t, size_t >> base_lod));
|
|
|
|
int4 result = readTexture(tex, texuv.x, texuv.y, layer, base_lod);
|
|
|
|
if (frac_lod != 0 && mipmap_linear) {{
|
|
texuv = uint2(
|
|
WrapCoord(uv.x >> (7 + base_lod + 1), wrap_s, size_s >> (base_lod + 1)),
|
|
WrapCoord(uv.y >> (7 + base_lod + 1), wrap_t, size_t >> (base_lod + 1)));
|
|
|
|
result *= 16 - frac_lod;
|
|
result += readTexture(tex, texuv.x, texuv.y, layer, base_lod + 1) * frac_lod;
|
|
result >>= 4;
|
|
}}
|
|
return result;
|
|
}}
|
|
}}
|
|
)");
|
|
}
|
|
}
|
|
|
|
static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, int n,
|
|
APIType api_type, bool stereo);
|
|
static void WriteTevRegular(ShaderCode& out, std::string_view components, TevBias bias, TevOp op,
|
|
bool clamp, TevScale scale);
|
|
static void WriteAlphaTest(ShaderCode& out, const pixel_shader_uid_data* uid_data, APIType api_type,
|
|
bool per_pixel_depth, bool use_dual_source);
|
|
static void WriteFog(ShaderCode& out, const pixel_shader_uid_data* uid_data);
|
|
static void WriteLogicOp(ShaderCode& out, const pixel_shader_uid_data* uid_data);
|
|
static void WriteColor(ShaderCode& out, APIType api_type, const pixel_shader_uid_data* uid_data,
|
|
bool use_dual_source);
|
|
static void WriteBlend(ShaderCode& out, const pixel_shader_uid_data* uid_data);
|
|
|
|
ShaderCode GeneratePixelShaderCode(APIType api_type, const ShaderHostConfig& host_config,
|
|
const pixel_shader_uid_data* uid_data)
|
|
{
|
|
ShaderCode out;
|
|
|
|
const bool per_pixel_lighting = g_ActiveConfig.bEnablePixelLighting;
|
|
const bool msaa = host_config.msaa;
|
|
const bool ssaa = host_config.ssaa;
|
|
const bool stereo = host_config.stereo;
|
|
const u32 numStages = uid_data->genMode_numtevstages + 1;
|
|
|
|
out.Write("// Pixel Shader for TEV stages\n");
|
|
out.Write("// {} TEV stages, {} texgens, {} IND stages\n", numStages,
|
|
uid_data->genMode_numtexgens, uid_data->genMode_numindstages);
|
|
|
|
// Stuff that is shared between ubershaders and pixelgen.
|
|
WriteBitfieldExtractHeader(out, api_type, host_config);
|
|
WritePixelShaderCommonHeader(out, api_type, host_config, uid_data->bounding_box);
|
|
|
|
out.Write("\n#define sampleTextureWrapper(texmap, uv, layer) "
|
|
"sampleTexture(texmap, samp[texmap], uv, layer)\n");
|
|
|
|
if (uid_data->ztest == EmulatedZ::ForcedEarly)
|
|
{
|
|
// Zcomploc (aka early_ztest) is a way to control whether depth test is done before
|
|
// or after texturing and alpha test. PC graphics APIs used to provide no way to emulate
|
|
// this feature properly until 2012: Depth tests were always done after alpha testing.
|
|
// Most importantly, it was not possible to write to the depth buffer without also writing
|
|
// a color value (unless color writing was disabled altogether).
|
|
|
|
// OpenGL 4.2 actually provides two extensions which can force an early z test:
|
|
// * ARB_image_load_store has 'layout(early_fragment_tests)' which forces the driver to do z
|
|
// and stencil tests early.
|
|
// * ARB_conservative_depth has 'layout(depth_unchanged) which signals to the driver that it
|
|
// can make optimisations
|
|
// which assume the pixel shader won't update the depth buffer.
|
|
|
|
// early_fragment_tests is the best option, as it requires the driver to do early-z and defines
|
|
// early-z exactly as
|
|
// we expect, with discard causing the shader to exit with only the depth buffer updated.
|
|
|
|
// Conservative depth's 'depth_unchanged' only hints to the driver that an early-z optimisation
|
|
// can be made and
|
|
// doesn't define what will happen if we discard the fragment. But the way modern graphics
|
|
// hardware is implemented
|
|
// means it is not unreasonable to expect the same behaviour as early_fragment_tests.
|
|
// We can also assume that if a driver has gone out of its way to support conservative depth and
|
|
// not image_load_store
|
|
// as required by OpenGL 4.2 that it will be doing the optimisation.
|
|
// If the driver doesn't actually do an early z optimisation, ZCompLoc will be broken and depth
|
|
// will only be written
|
|
// if the alpha test passes.
|
|
|
|
// We support Conservative as a fallback, because many drivers based on Mesa haven't implemented
|
|
// all of the
|
|
// ARB_image_load_store extension yet.
|
|
|
|
// This is a #define which signals whatever early-z method the driver supports.
|
|
out.Write("FORCE_EARLY_Z; \n");
|
|
}
|
|
|
|
const bool use_framebuffer_fetch = uid_data->blend_enable || uid_data->logic_op_enable ||
|
|
uid_data->ztest == EmulatedZ::EarlyWithFBFetch;
|
|
|
|
#ifdef __APPLE__
|
|
// Framebuffer fetch is only supported by Metal, so ensure that we're running Vulkan (MoltenVK)
|
|
// if we want to use it.
|
|
if (api_type == APIType::Vulkan || api_type == APIType::Metal)
|
|
{
|
|
if (!uid_data->no_dual_src)
|
|
{
|
|
out.Write("FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 0) out vec4 {};\n"
|
|
"FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 1) out vec4 ocol1;\n",
|
|
use_framebuffer_fetch ? "real_ocol0" : "ocol0");
|
|
}
|
|
else
|
|
{
|
|
// Metal doesn't support a single unified variable for both input and output,
|
|
// so when using framebuffer fetch, we declare the input separately below.
|
|
out.Write("FRAGMENT_OUTPUT_LOCATION(0) out vec4 {};\n",
|
|
use_framebuffer_fetch ? "real_ocol0" : "ocol0");
|
|
}
|
|
|
|
if (use_framebuffer_fetch)
|
|
{
|
|
// Subpass inputs will be converted to framebuffer fetch by SPIRV-Cross.
|
|
out.Write("INPUT_ATTACHMENT_BINDING(0, 0, 0) uniform subpassInput in_ocol0;\n");
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
bool has_broken_decoration =
|
|
DriverDetails::HasBug(DriverDetails::BUG_BROKEN_FRAGMENT_SHADER_INDEX_DECORATION);
|
|
|
|
out.Write("{} {} {} {};\n",
|
|
has_broken_decoration ? "FRAGMENT_OUTPUT_LOCATION(0)" :
|
|
"FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 0)",
|
|
use_framebuffer_fetch ? "FRAGMENT_INOUT" : "out",
|
|
uid_data->uint_output ? "uvec4" : "vec4",
|
|
use_framebuffer_fetch ? "real_ocol0" : "ocol0");
|
|
|
|
if (!uid_data->no_dual_src)
|
|
{
|
|
out.Write("{} out {} ocol1;\n",
|
|
has_broken_decoration ? "FRAGMENT_OUTPUT_LOCATION(1)" :
|
|
"FRAGMENT_OUTPUT_LOCATION_INDEXED(0, 1)",
|
|
uid_data->uint_output ? "uvec4" : "vec4");
|
|
}
|
|
}
|
|
|
|
if (uid_data->per_pixel_depth)
|
|
out.Write("#define depth gl_FragDepth\n");
|
|
|
|
if (host_config.backend_geometry_shaders)
|
|
{
|
|
out.Write("VARYING_LOCATION(0) in VertexData {{\n");
|
|
GenerateVSOutputMembers(out, api_type, uid_data->genMode_numtexgens, host_config,
|
|
GetInterpolationQualifier(msaa, ssaa, true, true), ShaderStage::Pixel);
|
|
|
|
out.Write("}};\n");
|
|
}
|
|
else
|
|
{
|
|
// Let's set up attributes
|
|
u32 counter = 0;
|
|
out.Write("VARYING_LOCATION({}) {} in float4 colors_0;\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa));
|
|
out.Write("VARYING_LOCATION({}) {} in float4 colors_1;\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa));
|
|
for (u32 i = 0; i < uid_data->genMode_numtexgens; ++i)
|
|
{
|
|
out.Write("VARYING_LOCATION({}) {} in float3 tex{};\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa), i);
|
|
}
|
|
if (!host_config.fast_depth_calc)
|
|
{
|
|
out.Write("VARYING_LOCATION({}) {} in float4 clipPos;\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa));
|
|
}
|
|
if (per_pixel_lighting)
|
|
{
|
|
out.Write("VARYING_LOCATION({}) {} in float3 Normal;\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa));
|
|
out.Write("VARYING_LOCATION({}) {} in float3 WorldPos;\n", counter++,
|
|
GetInterpolationQualifier(msaa, ssaa));
|
|
}
|
|
}
|
|
|
|
out.Write("void main()\n{{\n");
|
|
out.Write("\tfloat4 rawpos = gl_FragCoord;\n");
|
|
|
|
if (use_framebuffer_fetch)
|
|
{
|
|
// Store off a copy of the initial framebuffer value.
|
|
//
|
|
// If FB_FETCH_VALUE isn't defined (i.e. no special keyword for fetching from the
|
|
// framebuffer), we read from real_ocol0.
|
|
out.Write("#ifdef FB_FETCH_VALUE\n"
|
|
"\tfloat4 initial_ocol0 = FB_FETCH_VALUE;\n"
|
|
"#else\n"
|
|
"\tfloat4 initial_ocol0 = real_ocol0;\n"
|
|
"#endif\n");
|
|
|
|
// QComm's Adreno driver doesn't seem to like using the framebuffer_fetch value as an
|
|
// intermediate value with multiple reads & modifications, so we pull out the "real" output
|
|
// value above and use a temporary for calculations, then set the output value once at the
|
|
// end of the shader.
|
|
out.Write("\tfloat4 ocol0;\n");
|
|
}
|
|
|
|
if (uid_data->blend_enable)
|
|
{
|
|
out.Write("\tfloat4 ocol1;\n");
|
|
}
|
|
|
|
if (host_config.backend_geometry_shaders && stereo)
|
|
{
|
|
out.Write("\tint layer = gl_Layer;\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tint layer = 0;\n");
|
|
}
|
|
|
|
out.Write("\tint4 c0 = " I_COLORS "[1], c1 = " I_COLORS "[2], c2 = " I_COLORS
|
|
"[3], prev = " I_COLORS "[0];\n"
|
|
"\tint4 rastemp = int4(0, 0, 0, 0), textemp = int4(0, 0, 0, 0), konsttemp = int4(0, 0, "
|
|
"0, 0);\n"
|
|
"\tint3 comp16 = int3(1, 256, 0), comp24 = int3(1, 256, 256*256);\n"
|
|
"\tint alphabump=0;\n"
|
|
"\tint3 tevcoord=int3(0, 0, 0);\n"
|
|
"\tint2 wrappedcoord=int2(0,0), tempcoord=int2(0,0);\n"
|
|
"\tint4 "
|
|
"tevin_a=int4(0,0,0,0),tevin_b=int4(0,0,0,0),tevin_c=int4(0,0,0,0),tevin_d=int4(0,0,0,"
|
|
"0);\n\n"); // tev combiner inputs
|
|
|
|
// On GLSL, input variables must not be assigned to.
|
|
// This is why we declare these variables locally instead.
|
|
out.Write("\tfloat4 col0 = colors_0;\n"
|
|
"\tfloat4 col1 = colors_1;\n");
|
|
|
|
if (per_pixel_lighting)
|
|
{
|
|
out.Write("\tfloat3 _normal = normalize(Normal.xyz);\n\n"
|
|
"\tfloat3 pos = WorldPos;\n");
|
|
|
|
out.Write("\tint4 lacc;\n"
|
|
"\tfloat3 ldir, h, cosAttn, distAttn;\n"
|
|
"\tfloat dist, dist2, attn;\n");
|
|
|
|
// TODO: Our current constant usage code isn't able to handle more than one buffer.
|
|
// So we can't mark the VS constant as used here. But keep them here as reference.
|
|
// out.SetConstantsUsed(C_PLIGHT_COLORS, C_PLIGHT_COLORS+7); // TODO: Can be optimized further
|
|
// out.SetConstantsUsed(C_PLIGHTS, C_PLIGHTS+31); // TODO: Can be optimized further
|
|
// out.SetConstantsUsed(C_PMATERIALS, C_PMATERIALS+3);
|
|
GenerateLightingShaderCode(out, uid_data->lighting, "colors_", "col");
|
|
// The number of colors available to TEV is determined by numColorChans.
|
|
// Normally this is performed in the vertex shader after lighting, but with per-pixel lighting,
|
|
// we need to perform it here. (It needs to be done after lighting, as what was originally
|
|
// black might become a different color after lighting).
|
|
if (uid_data->numColorChans == 0)
|
|
out.Write("col0 = float4(0.0, 0.0, 0.0, 0.0);\n");
|
|
if (uid_data->numColorChans <= 1)
|
|
out.Write("col1 = float4(0.0, 0.0, 0.0, 0.0);\n");
|
|
}
|
|
|
|
if (uid_data->genMode_numtexgens == 0)
|
|
{
|
|
// TODO: This is a hack to ensure that shaders still compile when setting out of bounds tex
|
|
// coord indices to 0. Ideally, it shouldn't exist at all, but the exact behavior hasn't been
|
|
// tested.
|
|
out.Write("\tint2 fixpoint_uv0 = int2(0, 0);\n\n");
|
|
}
|
|
else
|
|
{
|
|
out.SetConstantsUsed(C_TEXDIMS, C_TEXDIMS + uid_data->genMode_numtexgens - 1);
|
|
for (u32 i = 0; i < uid_data->genMode_numtexgens; ++i)
|
|
{
|
|
out.Write("\tint2 fixpoint_uv{} = int2(", i);
|
|
out.Write("(tex{}.z == 0.0 ? tex{}.xy : tex{}.xy / tex{}.z)", i, i, i, i);
|
|
out.Write(" * float2(" I_TEXDIMS "[{}].zw * 128));\n", i);
|
|
// TODO: S24 overflows here?
|
|
}
|
|
}
|
|
|
|
for (u32 i = 0; i < uid_data->genMode_numindstages; ++i)
|
|
{
|
|
if ((uid_data->nIndirectStagesUsed & (1U << i)) != 0)
|
|
{
|
|
u32 texcoord = uid_data->GetTevindirefCoord(i);
|
|
const u32 texmap = uid_data->GetTevindirefMap(i);
|
|
|
|
// Quirk: when the tex coord is not less than the number of tex gens (i.e. the tex coord does
|
|
// not exist), then tex coord 0 is used (though sometimes glitchy effects happen on console).
|
|
// This affects the Mario portrait in Luigi's Mansion, where the developers forgot to set
|
|
// the number of tex gens to 2 (bug 11462).
|
|
if (texcoord >= uid_data->genMode_numtexgens)
|
|
texcoord = 0;
|
|
|
|
out.SetConstantsUsed(C_INDTEXSCALE + i / 2, C_INDTEXSCALE + i / 2);
|
|
out.Write("\ttempcoord = fixpoint_uv{} >> " I_INDTEXSCALE "[{}].{};\n", texcoord, i / 2,
|
|
(i & 1) ? "zw" : "xy");
|
|
|
|
out.Write("\tint3 iindtex{0} = sampleTextureWrapper({1}u, tempcoord, layer).abg;\n", i,
|
|
texmap);
|
|
}
|
|
}
|
|
|
|
for (u32 i = 0; i < numStages; i++)
|
|
{
|
|
// Build the equation for this stage
|
|
WriteStage(out, uid_data, i, api_type, stereo);
|
|
}
|
|
|
|
{
|
|
// The results of the last texenv stage are put onto the screen,
|
|
// regardless of the used destination register
|
|
TevStageCombiner::ColorCombiner last_cc;
|
|
TevStageCombiner::AlphaCombiner last_ac;
|
|
last_cc.hex = uid_data->stagehash[uid_data->genMode_numtevstages].cc;
|
|
last_ac.hex = uid_data->stagehash[uid_data->genMode_numtevstages].ac;
|
|
if (last_cc.dest != TevOutput::Prev)
|
|
{
|
|
out.Write("\tprev.rgb = {};\n", tev_c_output_table[last_cc.dest]);
|
|
}
|
|
if (last_ac.dest != TevOutput::Prev)
|
|
{
|
|
out.Write("\tprev.a = {};\n", tev_a_output_table[last_ac.dest]);
|
|
}
|
|
}
|
|
out.Write("\tprev = prev & 255;\n");
|
|
|
|
// NOTE: Fragment may not be discarded if alpha test always fails and early depth test is enabled
|
|
// (in this case we need to write a depth value if depth test passes regardless of the alpha
|
|
// testing result)
|
|
if (uid_data->Pretest == AlphaTestResult::Undetermined ||
|
|
(uid_data->Pretest == AlphaTestResult::Fail && uid_data->ztest == EmulatedZ::Late))
|
|
{
|
|
WriteAlphaTest(out, uid_data, api_type, uid_data->per_pixel_depth,
|
|
!uid_data->no_dual_src || uid_data->blend_enable);
|
|
}
|
|
|
|
// This situation is important for Mario Kart Wii's menus (they will render incorrectly if the
|
|
// alpha test for the FMV in the background fails, since they depend on depth for drawing a yellow
|
|
// border) and Fortune Street's gameplay (where a rectangle with an alpha value of 1 is drawn over
|
|
// the center of the screen several times, but those rectangles shouldn't be visible).
|
|
// Blending seems to result in no changes to the output with an alpha of 1, even if the input
|
|
// color is white.
|
|
// TODO: Investigate this further: we might be handling blending incorrectly in general (though
|
|
// there might not be any good way of changing blending behavior)
|
|
out.Write("\t// Hardware testing indicates that an alpha of 1 can pass an alpha test,\n"
|
|
"\t// but doesn't do anything in blending\n"
|
|
"\tif (prev.a == 1) prev.a = 0;\n");
|
|
|
|
if (uid_data->zfreeze)
|
|
{
|
|
out.SetConstantsUsed(C_ZSLOPE, C_ZSLOPE);
|
|
out.SetConstantsUsed(C_EFBSCALE, C_EFBSCALE);
|
|
|
|
out.Write("\tfloat2 screenpos = rawpos.xy * " I_EFBSCALE ".xy;\n");
|
|
|
|
// Opengl has reversed vertical screenspace coordinates
|
|
if (api_type == APIType::OpenGL)
|
|
out.Write("\tscreenpos.y = {}.0 - screenpos.y;\n", EFB_HEIGHT);
|
|
|
|
out.Write("\tint zCoord = int(" I_ZSLOPE ".z + " I_ZSLOPE ".x * screenpos.x + " I_ZSLOPE
|
|
".y * screenpos.y);\n");
|
|
}
|
|
else if (!host_config.fast_depth_calc)
|
|
{
|
|
// FastDepth means to trust the depth generated in perspective division.
|
|
// It should be correct, but it seems not to be as accurate as required. TODO: Find out why!
|
|
// For disabled FastDepth we just calculate the depth value again.
|
|
// The performance impact of this additional calculation doesn't matter, but it prevents
|
|
// the host GPU driver from performing any early depth test optimizations.
|
|
out.SetConstantsUsed(C_ZBIAS + 1, C_ZBIAS + 1);
|
|
// the screen space depth value = far z + (clip z / clip w) * z range
|
|
out.Write("\tint zCoord = " I_ZBIAS "[1].x + int((clipPos.z / clipPos.w) * float(" I_ZBIAS
|
|
"[1].y));\n");
|
|
}
|
|
else
|
|
{
|
|
if (!host_config.backend_reversed_depth_range)
|
|
out.Write("\tint zCoord = int((1.0 - rawpos.z) * 16777216.0);\n");
|
|
else
|
|
out.Write("\tint zCoord = int(rawpos.z * 16777216.0);\n");
|
|
}
|
|
out.Write("\tzCoord = clamp(zCoord, 0, 0xFFFFFF);\n");
|
|
|
|
// depth texture can safely be ignored if the result won't be written to the depth buffer
|
|
// (early_ztest) and isn't used for fog either
|
|
const bool skip_ztexture = !uid_data->per_pixel_depth && uid_data->fog_fsel == FogType::Off;
|
|
|
|
// Note: z-textures are not written to depth buffer if early depth test is used
|
|
const bool early_ztest = uid_data->ztest == EmulatedZ::Early ||
|
|
uid_data->ztest == EmulatedZ::EarlyWithFBFetch ||
|
|
uid_data->ztest == EmulatedZ::EarlyWithZComplocHack;
|
|
if (uid_data->per_pixel_depth && early_ztest)
|
|
{
|
|
if (!host_config.backend_reversed_depth_range)
|
|
out.Write("\tdepth = 1.0 - float(zCoord) / 16777216.0;\n");
|
|
else
|
|
out.Write("\tdepth = float(zCoord) / 16777216.0;\n");
|
|
}
|
|
|
|
// Note: depth texture output is only written to depth buffer if late depth test is used
|
|
// theoretical final depth value is used for fog calculation, though, so we have to emulate
|
|
// ztextures anyway
|
|
if (uid_data->ztex_op != ZTexOp::Disabled && !skip_ztexture)
|
|
{
|
|
// use the texture input of the last texture stage (textemp), hopefully this has been read and
|
|
// is in correct format...
|
|
out.SetConstantsUsed(C_ZBIAS, C_ZBIAS + 1);
|
|
out.Write("\tzCoord = idot(" I_ZBIAS "[0].xyzw, textemp.xyzw) + " I_ZBIAS "[1].w {};\n",
|
|
(uid_data->ztex_op == ZTexOp::Add) ? "+ zCoord" : "");
|
|
out.Write("\tzCoord = zCoord & 0xFFFFFF;\n");
|
|
}
|
|
|
|
if (uid_data->per_pixel_depth && uid_data->ztest == EmulatedZ::Late)
|
|
{
|
|
if (!host_config.backend_reversed_depth_range)
|
|
out.Write("\tdepth = 1.0 - float(zCoord) / 16777216.0;\n");
|
|
else
|
|
out.Write("\tdepth = float(zCoord) / 16777216.0;\n");
|
|
}
|
|
|
|
// No dithering for RGB8 mode
|
|
if (uid_data->dither)
|
|
{
|
|
// Flipper uses a standard 2x2 Bayer Matrix for 6 bit dithering
|
|
// Here the matrix is encoded into the two factor constants
|
|
out.Write("\tint2 dither = int2(rawpos.xy) & 1;\n");
|
|
out.Write("\tprev.rgb = (prev.rgb - (prev.rgb >> 6)) + abs(dither.y * 3 - dither.x * 2);\n");
|
|
}
|
|
|
|
WriteFog(out, uid_data);
|
|
|
|
if (uid_data->logic_op_enable)
|
|
WriteLogicOp(out, uid_data);
|
|
|
|
// Write the color and alpha values to the framebuffer
|
|
// If using shader blend, we still use the separate alpha
|
|
WriteColor(out, api_type, uid_data, !uid_data->no_dual_src || uid_data->blend_enable);
|
|
|
|
if (uid_data->blend_enable)
|
|
WriteBlend(out, uid_data);
|
|
else if (use_framebuffer_fetch)
|
|
out.Write("\treal_ocol0 = ocol0;\n");
|
|
|
|
if (uid_data->bounding_box)
|
|
out.Write("\tUpdateBoundingBox(rawpos.xy);\n");
|
|
|
|
out.Write("}}\n");
|
|
|
|
return out;
|
|
}
|
|
|
|
static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, int n,
|
|
APIType api_type, bool stereo)
|
|
{
|
|
using Common::EnumMap;
|
|
|
|
const auto& stage = uid_data->stagehash[n];
|
|
out.Write("\n\t// TEV stage {}\n", n);
|
|
|
|
// Quirk: when the tex coord is not less than the number of tex gens (i.e. the tex coord does not
|
|
// exist), then tex coord 0 is used (though sometimes glitchy effects happen on console).
|
|
u32 texcoord = stage.tevorders_texcoord;
|
|
const bool has_tex_coord = texcoord < uid_data->genMode_numtexgens;
|
|
if (!has_tex_coord)
|
|
texcoord = 0;
|
|
|
|
{
|
|
const TevStageIndirect tevind{.hex = stage.tevind};
|
|
out.Write("\t// indirect op\n");
|
|
|
|
// Quirk: Referencing a stage above the number of ind stages is undefined behavior,
|
|
// and on console produces a noise pattern (details unknown).
|
|
// Instead, just skip applying the indirect operation, which is close enough.
|
|
// We need to do *something*, as there won't be an iindtex variable otherwise.
|
|
// Viewtiful Joe hits this case (bug 12525).
|
|
// Wrapping and add to previous still apply in this case (and when the stage is disabled).
|
|
const bool has_ind_stage = tevind.bt < uid_data->genMode_numindstages;
|
|
|
|
// Perform the indirect op on the incoming regular coordinates
|
|
// using iindtex{} as the offset coords
|
|
if (has_ind_stage && tevind.bs != IndTexBumpAlpha::Off)
|
|
{
|
|
static constexpr EnumMap<const char*, IndTexBumpAlpha::U> tev_ind_alpha_sel{
|
|
"",
|
|
"x",
|
|
"y",
|
|
"z",
|
|
};
|
|
|
|
// According to libogc, the bump alpha value is 5 bits, and comes from the bottom bits of the
|
|
// component byte, except in the case of ITF_8, which presumably uses the top bits with a
|
|
// mask.
|
|
// https://github.com/devkitPro/libogc/blob/bd24a9b3f59502f9b30d6bac0ae35fc485045f78/gc/ogc/gx.h#L3038-L3041
|
|
// https://github.com/devkitPro/libogc/blob/bd24a9b3f59502f9b30d6bac0ae35fc485045f78/gc/ogc/gx.h#L790-L800
|
|
|
|
static constexpr EnumMap<char, IndTexFormat::ITF_3> tev_ind_alpha_shift{
|
|
'0', // ITF_8: 0bXXXXXYYY -> 0bXXXXX000? No shift?
|
|
'5', // ITF_5: 0bIIIIIAAA -> 0bAAA00000, shift of 5
|
|
'4', // ITF_4: 0bIIIIAAAA -> 0bAAAA0000, shift of 4
|
|
'3', // ITF_3: 0bIIIAAAAA -> 0bAAAAA000, shift of 3
|
|
};
|
|
|
|
out.Write("\talphabump = (iindtex{}.{} << {}) & 248;\n", tevind.bt,
|
|
tev_ind_alpha_sel[tevind.bs], tev_ind_alpha_shift[tevind.fmt]);
|
|
}
|
|
else
|
|
{
|
|
// TODO: Should we reset alphabump to 0 here?
|
|
}
|
|
|
|
if (has_ind_stage && tevind.matrix_index != IndMtxIndex::Off)
|
|
{
|
|
// format
|
|
static constexpr EnumMap<char, IndTexFormat::ITF_3> tev_ind_fmt_shift{
|
|
'0', // ITF_8: 0bXXXXXXXX -> 0bXXXXXXXX, no shift
|
|
'3', // ITF_5: 0bIIIIIAAA -> 0b000IIIII, shift of 3
|
|
'4', // ITF_4: 0bIIIIAAAA -> 0b0000IIII, shift of 4
|
|
'5', // ITF_3: 0bIIIAAAAA -> 0b00000III, shift of 5
|
|
};
|
|
out.Write("\tint3 iindtevcrd{} = iindtex{} >> {};\n", n, tevind.bt,
|
|
tev_ind_fmt_shift[tevind.fmt]);
|
|
|
|
// bias - TODO: Check if this needs to be this complicated...
|
|
// indexed by bias
|
|
static constexpr EnumMap<const char*, IndTexBias::STU> tev_ind_bias_field{
|
|
"", "x", "y", "xy", "z", "xz", "yz", "xyz",
|
|
};
|
|
|
|
// indexed by fmt
|
|
static constexpr EnumMap<const char*, IndTexFormat::ITF_3> tev_ind_bias_add{
|
|
"-128",
|
|
"1",
|
|
"1",
|
|
"1",
|
|
};
|
|
|
|
if (tevind.bias == IndTexBias::S || tevind.bias == IndTexBias::T ||
|
|
tevind.bias == IndTexBias::U)
|
|
{
|
|
out.Write("\tiindtevcrd{}.{} += int({});\n", n, tev_ind_bias_field[tevind.bias],
|
|
tev_ind_bias_add[tevind.fmt]);
|
|
}
|
|
else if (tevind.bias == IndTexBias::ST || tevind.bias == IndTexBias::SU ||
|
|
tevind.bias == IndTexBias::TU_)
|
|
{
|
|
out.Write("\tiindtevcrd{0}.{1} += int2({2}, {2});\n", n, tev_ind_bias_field[tevind.bias],
|
|
tev_ind_bias_add[tevind.fmt]);
|
|
}
|
|
else if (tevind.bias == IndTexBias::STU)
|
|
{
|
|
out.Write("\tiindtevcrd{0}.{1} += int3({2}, {2}, {2});\n", n,
|
|
tev_ind_bias_field[tevind.bias], tev_ind_bias_add[tevind.fmt]);
|
|
}
|
|
|
|
// Multiplied by 2 because each matrix has two rows.
|
|
// Note also that the 4th column of the matrix contains the scale factor.
|
|
const u32 mtxidx = 2 * (static_cast<u32>(tevind.matrix_index.Value()) - 1);
|
|
|
|
// multiply by offset matrix and scale - calculations are likely to overflow badly,
|
|
// yet it works out since we only care about the lower 23 bits (+1 sign bit) of the result
|
|
if (tevind.matrix_id == IndMtxId::Indirect)
|
|
{
|
|
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
|
|
|
|
out.Write("\tint2 indtevtrans{} = int2(idot(" I_INDTEXMTX
|
|
"[{}].xyz, iindtevcrd{}), idot(" I_INDTEXMTX "[{}].xyz, iindtevcrd{})) >> 3;\n",
|
|
n, mtxidx, n, mtxidx + 1, n);
|
|
|
|
// TODO: should use a shader uid branch for this for better performance
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_BITWISE_OP_NEGATION))
|
|
{
|
|
out.Write("\tint indtexmtx_w_inverse_{} = -" I_INDTEXMTX "[{}].w;\n", n, mtxidx);
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= indtexmtx_w_inverse_{};\n", n, n);
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= (-" I_INDTEXMTX "[{}].w);\n", n, mtxidx);
|
|
}
|
|
}
|
|
else if (tevind.matrix_id == IndMtxId::S)
|
|
{
|
|
ASSERT(has_tex_coord);
|
|
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
|
|
|
|
out.Write("\tint2 indtevtrans{} = int2(fixpoint_uv{} * iindtevcrd{}.xx) >> 8;\n", n,
|
|
texcoord, n);
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_BITWISE_OP_NEGATION))
|
|
{
|
|
out.Write("\tint indtexmtx_w_inverse_{} = -" I_INDTEXMTX "[{}].w;\n", n, mtxidx);
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= (indtexmtx_w_inverse_{});\n", n, n);
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= (-" I_INDTEXMTX "[{}].w);\n", n, mtxidx);
|
|
}
|
|
}
|
|
else if (tevind.matrix_id == IndMtxId::T)
|
|
{
|
|
ASSERT(has_tex_coord);
|
|
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
|
|
|
|
out.Write("\tint2 indtevtrans{} = int2(fixpoint_uv{} * iindtevcrd{}.yy) >> 8;\n", n,
|
|
texcoord, n);
|
|
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_BITWISE_OP_NEGATION))
|
|
{
|
|
out.Write("\tint indtexmtx_w_inverse_{} = -" I_INDTEXMTX "[{}].w;\n", n, mtxidx);
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= (indtexmtx_w_inverse_{});\n", n, n);
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tif (" I_INDTEXMTX "[{}].w >= 0) indtevtrans{} >>= " I_INDTEXMTX "[{}].w;\n",
|
|
mtxidx, n, mtxidx);
|
|
out.Write("\telse indtevtrans{} <<= (-" I_INDTEXMTX "[{}].w);\n", n, mtxidx);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tint2 indtevtrans{} = int2(0, 0);\n", n);
|
|
ASSERT(false); // Unknown value for matrix_id
|
|
}
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tint2 indtevtrans{} = int2(0, 0);\n", n);
|
|
if (tevind.matrix_index == IndMtxIndex::Off)
|
|
{
|
|
// If matrix_index is Off (0), matrix_id should be Indirect (0)
|
|
ASSERT(tevind.matrix_id == IndMtxId::Indirect);
|
|
}
|
|
}
|
|
|
|
// ---------
|
|
// Wrapping
|
|
// ---------
|
|
|
|
static constexpr std::array<const char*, 5> tev_ind_wrap_start{
|
|
"(256<<7)", "(128<<7)", "(64<<7)", "(32<<7)", "(16<<7)",
|
|
};
|
|
|
|
// wrap S
|
|
if (tevind.sw == IndTexWrap::ITW_OFF)
|
|
{
|
|
out.Write("\twrappedcoord.x = fixpoint_uv{}.x;\n", texcoord);
|
|
}
|
|
else if (tevind.sw >= IndTexWrap::ITW_0) // 7 (Invalid) appears to behave the same as 6 (ITW_0)
|
|
{
|
|
out.Write("\twrappedcoord.x = 0;\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\twrappedcoord.x = fixpoint_uv{}.x & ({} - 1);\n", texcoord,
|
|
tev_ind_wrap_start[u32(tevind.sw.Value()) - u32(IndTexWrap::ITW_256)]);
|
|
}
|
|
|
|
// wrap T
|
|
if (tevind.tw == IndTexWrap::ITW_OFF)
|
|
{
|
|
out.Write("\twrappedcoord.y = fixpoint_uv{}.y;\n", texcoord);
|
|
}
|
|
else if (tevind.tw >= IndTexWrap::ITW_0) // 7 (Invalid) appears to behave the same as 6 (ITW_0)
|
|
{
|
|
out.Write("\twrappedcoord.y = 0;\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\twrappedcoord.y = fixpoint_uv{}.y & ({} - 1);\n", texcoord,
|
|
tev_ind_wrap_start[u32(tevind.tw.Value()) - u32(IndTexWrap::ITW_256)]);
|
|
}
|
|
|
|
if (tevind.fb_addprev) // add previous tevcoord
|
|
out.Write("\ttevcoord.xy += wrappedcoord + indtevtrans{};\n", n);
|
|
else
|
|
out.Write("\ttevcoord.xy = wrappedcoord + indtevtrans{};\n", n);
|
|
|
|
// Emulate s24 overflows
|
|
out.Write("\ttevcoord.xy = (tevcoord.xy << 8) >> 8;\n");
|
|
}
|
|
|
|
TevStageCombiner::ColorCombiner cc;
|
|
TevStageCombiner::AlphaCombiner ac;
|
|
cc.hex = stage.cc;
|
|
ac.hex = stage.ac;
|
|
|
|
if (cc.a == TevColorArg::RasAlpha || cc.a == TevColorArg::RasColor ||
|
|
cc.b == TevColorArg::RasAlpha || cc.b == TevColorArg::RasColor ||
|
|
cc.c == TevColorArg::RasAlpha || cc.c == TevColorArg::RasColor ||
|
|
cc.d == TevColorArg::RasAlpha || cc.d == TevColorArg::RasColor ||
|
|
ac.a == TevAlphaArg::RasAlpha || ac.b == TevAlphaArg::RasAlpha ||
|
|
ac.c == TevAlphaArg::RasAlpha || ac.d == TevAlphaArg::RasAlpha)
|
|
{
|
|
// Generate swizzle string to represent the Ras color channel swapping
|
|
out.Write("\trastemp = {}.{}{}{}{};\n", tev_ras_table[stage.tevorders_colorchan],
|
|
rgba_swizzle[stage.ras_swap_r], rgba_swizzle[stage.ras_swap_g],
|
|
rgba_swizzle[stage.ras_swap_b], rgba_swizzle[stage.ras_swap_a]);
|
|
}
|
|
|
|
if (stage.tevorders_enable && uid_data->genMode_numtexgens > 0)
|
|
{
|
|
// Generate swizzle string to represent the texture color channel swapping
|
|
out.Write("\ttextemp = sampleTextureWrapper({}u, tevcoord.xy, layer).{}{}{}{};\n",
|
|
stage.tevorders_texmap, rgba_swizzle[stage.tex_swap_r],
|
|
rgba_swizzle[stage.tex_swap_g], rgba_swizzle[stage.tex_swap_b],
|
|
rgba_swizzle[stage.tex_swap_a]);
|
|
}
|
|
else if (uid_data->genMode_numtexgens == 0)
|
|
{
|
|
// It seems like the result is always black when no tex coords are enabled, but further testing
|
|
// is needed.
|
|
out.Write("\ttextemp = int4(0, 0, 0, 0);\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\ttextemp = int4(255, 255, 255, 255);\n");
|
|
}
|
|
|
|
if (cc.a == TevColorArg::Konst || cc.b == TevColorArg::Konst || cc.c == TevColorArg::Konst ||
|
|
cc.d == TevColorArg::Konst || ac.a == TevAlphaArg::Konst || ac.b == TevAlphaArg::Konst ||
|
|
ac.c == TevAlphaArg::Konst || ac.d == TevAlphaArg::Konst)
|
|
{
|
|
out.Write("\tkonsttemp = int4({}, {});\n", tev_ksel_table_c[stage.tevksel_kc],
|
|
tev_ksel_table_a[stage.tevksel_ka]);
|
|
|
|
if (u32(stage.tevksel_kc) > 7)
|
|
{
|
|
out.SetConstantsUsed(C_KCOLORS + ((u32(stage.tevksel_kc) - 0xc) % 4),
|
|
C_KCOLORS + ((u32(stage.tevksel_kc) - 0xc) % 4));
|
|
}
|
|
if (u32(stage.tevksel_ka) > 7)
|
|
{
|
|
out.SetConstantsUsed(C_KCOLORS + ((u32(stage.tevksel_ka) - 0xc) % 4),
|
|
C_KCOLORS + ((u32(stage.tevksel_ka) - 0xc) % 4));
|
|
}
|
|
}
|
|
|
|
if (cc.d == TevColorArg::Color0 || cc.d == TevColorArg::Alpha0 || ac.d == TevAlphaArg::Alpha0)
|
|
out.SetConstantsUsed(C_COLORS + 1, C_COLORS + 1);
|
|
|
|
if (cc.d == TevColorArg::Color1 || cc.d == TevColorArg::Alpha1 || ac.d == TevAlphaArg::Alpha1)
|
|
out.SetConstantsUsed(C_COLORS + 2, C_COLORS + 2);
|
|
|
|
if (cc.d == TevColorArg::Color2 || cc.d == TevColorArg::Alpha2 || ac.d == TevAlphaArg::Alpha2)
|
|
out.SetConstantsUsed(C_COLORS + 3, C_COLORS + 3);
|
|
|
|
if (cc.dest >= TevOutput::Color0)
|
|
out.SetConstantsUsed(C_COLORS + u32(cc.dest.Value()), C_COLORS + u32(cc.dest.Value()));
|
|
|
|
if (ac.dest >= TevOutput::Color0)
|
|
out.SetConstantsUsed(C_COLORS + u32(ac.dest.Value()), C_COLORS + u32(ac.dest.Value()));
|
|
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_VECTOR_BITWISE_AND))
|
|
{
|
|
out.Write("\ttevin_a = int4({} & 255, {} & 255);\n", tev_c_input_table[cc.a],
|
|
tev_a_input_table[ac.a]);
|
|
out.Write("\ttevin_b = int4({} & 255, {} & 255);\n", tev_c_input_table[cc.b],
|
|
tev_a_input_table[ac.b]);
|
|
out.Write("\ttevin_c = int4({} & 255, {} & 255);\n", tev_c_input_table[cc.c],
|
|
tev_a_input_table[ac.c]);
|
|
}
|
|
else
|
|
{
|
|
out.Write("\ttevin_a = int4({}, {})&int4(255, 255, 255, 255);\n", tev_c_input_table[cc.a],
|
|
tev_a_input_table[ac.a]);
|
|
out.Write("\ttevin_b = int4({}, {})&int4(255, 255, 255, 255);\n", tev_c_input_table[cc.b],
|
|
tev_a_input_table[ac.b]);
|
|
out.Write("\ttevin_c = int4({}, {})&int4(255, 255, 255, 255);\n", tev_c_input_table[cc.c],
|
|
tev_a_input_table[ac.c]);
|
|
}
|
|
out.Write("\ttevin_d = int4({}, {});\n", tev_c_input_table[cc.d], tev_a_input_table[ac.d]);
|
|
|
|
out.Write("\t// color combine\n");
|
|
out.Write("\t{} = clamp(", tev_c_output_table[cc.dest]);
|
|
if (cc.bias != TevBias::Compare)
|
|
{
|
|
WriteTevRegular(out, "rgb", cc.bias, cc.op, cc.clamp, cc.scale);
|
|
}
|
|
else
|
|
{
|
|
static constexpr EnumMap<const char*, TevCompareMode::RGB8> tev_rgb_comparison_gt{
|
|
"((tevin_a.r > tevin_b.r) ? tevin_c.rgb : int3(0,0,0))", // TevCompareMode::R8
|
|
"((idot(tevin_a.rgb, comp16) > idot(tevin_b.rgb, comp16)) ? tevin_c.rgb : int3(0,0,0))", // GR16
|
|
"((idot(tevin_a.rgb, comp24) > idot(tevin_b.rgb, comp24)) ? tevin_c.rgb : int3(0,0,0))", // BGR24
|
|
"(max(sign(tevin_a.rgb - tevin_b.rgb), int3(0,0,0)) * tevin_c.rgb)", // RGB8
|
|
};
|
|
|
|
static constexpr EnumMap<const char*, TevCompareMode::RGB8> tev_rgb_comparison_eq{
|
|
"((tevin_a.r == tevin_b.r) ? tevin_c.rgb : int3(0,0,0))", // TevCompareMode::R8
|
|
"((idot(tevin_a.rgb,comp16) == idot(tevin_b.rgb,comp16)) ? tevin_c.rgb : int3(0,0,0))", // GR16
|
|
"((idot(tevin_a.rgb,comp24) == idot(tevin_b.rgb,comp24)) ? tevin_c.rgb : int3(0,0,0))", // BGR24
|
|
"((int3(1,1,1) - sign(abs(tevin_a.rgb - tevin_b.rgb))) * tevin_c.rgb)" // RGB8
|
|
};
|
|
|
|
if (cc.comparison == TevComparison::EQ)
|
|
out.Write(" tevin_d.rgb + {}", tev_rgb_comparison_eq[cc.compare_mode]);
|
|
else
|
|
out.Write(" tevin_d.rgb + {}", tev_rgb_comparison_gt[cc.compare_mode]);
|
|
}
|
|
if (cc.clamp)
|
|
out.Write(", int3(0,0,0), int3(255,255,255))");
|
|
else
|
|
out.Write(", int3(-1024,-1024,-1024), int3(1023,1023,1023))");
|
|
out.Write(";\n");
|
|
|
|
out.Write("\t// alpha combine\n");
|
|
out.Write("\t{} = clamp(", tev_a_output_table[ac.dest]);
|
|
if (ac.bias != TevBias::Compare)
|
|
{
|
|
WriteTevRegular(out, "a", ac.bias, ac.op, ac.clamp, ac.scale);
|
|
}
|
|
else
|
|
{
|
|
static constexpr EnumMap<const char*, TevCompareMode::A8> tev_a_comparison_gt{
|
|
"((tevin_a.r > tevin_b.r) ? tevin_c.a : 0)", // TevCompareMode::R8
|
|
"((idot(tevin_a.rgb, comp16) > idot(tevin_b.rgb, comp16)) ? tevin_c.a : 0)", // GR16
|
|
"((idot(tevin_a.rgb, comp24) > idot(tevin_b.rgb, comp24)) ? tevin_c.a : 0)", // BGR24
|
|
"((tevin_a.a > tevin_b.a) ? tevin_c.a : 0)", // A8
|
|
};
|
|
|
|
static constexpr EnumMap<const char*, TevCompareMode::A8> tev_a_comparison_eq{
|
|
"((tevin_a.r == tevin_b.r) ? tevin_c.a : 0)", // TevCompareMode::R8
|
|
"((idot(tevin_a.rgb, comp16) == idot(tevin_b.rgb, comp16)) ? tevin_c.a : 0)", // GR16,
|
|
"((idot(tevin_a.rgb, comp24) == idot(tevin_b.rgb, comp24)) ? tevin_c.a : 0)", // BGR24,
|
|
"((tevin_a.a == tevin_b.a) ? tevin_c.a : 0)", // A8
|
|
};
|
|
|
|
if (ac.comparison == TevComparison::EQ)
|
|
out.Write(" tevin_d.a + {}", tev_a_comparison_eq[ac.compare_mode]);
|
|
else
|
|
out.Write(" tevin_d.a + {}", tev_a_comparison_gt[ac.compare_mode]);
|
|
}
|
|
if (ac.clamp)
|
|
out.Write(", 0, 255)");
|
|
else
|
|
out.Write(", -1024, 1023)");
|
|
|
|
out.Write(";\n");
|
|
}
|
|
|
|
static void WriteTevRegular(ShaderCode& out, std::string_view components, TevBias bias, TevOp op,
|
|
bool clamp, TevScale scale)
|
|
{
|
|
static constexpr Common::EnumMap<const char*, TevScale::Divide2> tev_scale_table_left{
|
|
"", // Scale1
|
|
" << 1", // Scale2
|
|
" << 2", // Scale4
|
|
"", // Divide2
|
|
};
|
|
|
|
static constexpr Common::EnumMap<const char*, TevScale::Divide2> tev_scale_table_right{
|
|
"", // Scale1
|
|
"", // Scale2
|
|
"", // Scale4
|
|
" >> 1", // Divide2
|
|
};
|
|
|
|
static constexpr Common::EnumMap<const char*, TevOp::Sub> tev_lerp_bias{
|
|
" + 128",
|
|
" + 127",
|
|
};
|
|
|
|
static constexpr Common::EnumMap<const char*, TevBias::Compare> tev_bias_table{
|
|
"", // Zero,
|
|
" + 128", // AddHalf,
|
|
" - 128", // SubHalf,
|
|
"",
|
|
};
|
|
|
|
static constexpr Common::EnumMap<char, TevOp::Sub> tev_op_table{
|
|
'+', // TevOp::Add = 0,
|
|
'-', // TevOp::Sub = 1,
|
|
};
|
|
|
|
// Regular TEV stage: (d + bias + lerp(a,b,c)) * scale
|
|
// The GameCube/Wii GPU uses a very sophisticated algorithm for scale-lerping:
|
|
// - c is scaled from 0..255 to 0..256, which allows dividing the result by 256 instead of 255
|
|
// - if scale is bigger than one, it is moved inside the lerp calculation for increased accuracy
|
|
// - a rounding bias is added before dividing by 256
|
|
// TODO: Is the rounding bias still added when the scale is divide by 2? Currently we do not
|
|
// apply it.
|
|
out.Write("(((tevin_d.{}{}){})", components, tev_bias_table[bias], tev_scale_table_left[scale]);
|
|
out.Write(" {} ", tev_op_table[op]);
|
|
out.Write("(((((tevin_a.{0}<<8) + "
|
|
"(tevin_b.{0}-tevin_a.{0})*(tevin_c.{0}+(tevin_c.{0}>>7))){1}){2})>>8)",
|
|
components, tev_scale_table_left[scale],
|
|
(scale != TevScale::Divide2) ? tev_lerp_bias[op] : "");
|
|
out.Write("){}", tev_scale_table_right[scale]);
|
|
}
|
|
|
|
constexpr Common::EnumMap<const char*, CompareMode::Always> tev_alpha_funcs_table{
|
|
"(false)", // CompareMode::Never
|
|
"(prev.a < {})", // CompareMode::Less
|
|
"(prev.a == {})", // CompareMode::Equal
|
|
"(prev.a <= {})", // CompareMode::LEqual
|
|
"(prev.a > {})", // CompareMode::Greater
|
|
"(prev.a != {})", // CompareMode::NEqual
|
|
"(prev.a >= {})", // CompareMode::GEqual
|
|
"(true)" // CompareMode::Always
|
|
};
|
|
|
|
constexpr Common::EnumMap<const char*, AlphaTestOp::Xnor> tev_alpha_funclogic_table{
|
|
" && ", // and
|
|
" || ", // or
|
|
" != ", // xor
|
|
" == " // xnor
|
|
};
|
|
|
|
static void WriteAlphaTest(ShaderCode& out, const pixel_shader_uid_data* uid_data, APIType api_type,
|
|
bool per_pixel_depth, bool use_dual_source)
|
|
{
|
|
static constexpr std::array<std::string_view, 2> alpha_ref{
|
|
I_ALPHA ".r",
|
|
I_ALPHA ".g",
|
|
};
|
|
|
|
const auto write_alpha_func = [&out](CompareMode mode, std::string_view ref) {
|
|
const bool has_no_arguments = mode == CompareMode::Never || mode == CompareMode::Always;
|
|
if (has_no_arguments)
|
|
out.Write("{}", tev_alpha_funcs_table[mode]);
|
|
else
|
|
out.Write(fmt::runtime(tev_alpha_funcs_table[mode]), ref);
|
|
};
|
|
|
|
out.SetConstantsUsed(C_ALPHA, C_ALPHA);
|
|
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_NEGATED_BOOLEAN))
|
|
out.Write("\tif(( ");
|
|
else
|
|
out.Write("\tif(!( ");
|
|
|
|
// Lookup the first component from the alpha function table
|
|
write_alpha_func(uid_data->alpha_test_comp0, alpha_ref[0]);
|
|
|
|
// Lookup the logic op
|
|
out.Write("{}", tev_alpha_funclogic_table[uid_data->alpha_test_logic]);
|
|
|
|
// Lookup the second component from the alpha function table
|
|
write_alpha_func(uid_data->alpha_test_comp1, alpha_ref[1]);
|
|
|
|
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_NEGATED_BOOLEAN))
|
|
out.Write(") == false) {{\n");
|
|
else
|
|
out.Write(")) {{\n");
|
|
|
|
out.Write("\t\tocol0 = float4(0.0, 0.0, 0.0, 0.0);\n");
|
|
if (use_dual_source && !(api_type == APIType::D3D && uid_data->uint_output))
|
|
out.Write("\t\tocol1 = float4(0.0, 0.0, 0.0, 0.0);\n");
|
|
if (per_pixel_depth)
|
|
{
|
|
out.Write("\t\tdepth = {};\n",
|
|
!g_ActiveConfig.backend_info.bSupportsReversedDepthRange ? "0.0" : "1.0");
|
|
}
|
|
|
|
// ZCOMPLOC HACK:
|
|
if (uid_data->ztest != EmulatedZ::EarlyWithZComplocHack)
|
|
{
|
|
#ifdef __APPLE__
|
|
if (uid_data->ztest == EmulatedZ::EarlyWithFBFetch)
|
|
{
|
|
// Instead of using discard, fetch the framebuffer's color value and use it as the output
|
|
// for this fragment.
|
|
out.Write("\t\t{} = float4(initial_ocol0.xyz, 1.0);\n",
|
|
use_dual_source ? "real_ocol0" : "ocol0");
|
|
out.Write("\t\treturn;\n");
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
out.Write("\t\tdiscard;\n");
|
|
if (api_type == APIType::D3D)
|
|
out.Write("\t\treturn;\n");
|
|
}
|
|
}
|
|
|
|
out.Write("\t}}\n");
|
|
}
|
|
|
|
constexpr Common::EnumMap<const char*, FogType::BackwardsExpSq> tev_fog_funcs_table{
|
|
"", // No Fog
|
|
"", // ?
|
|
"", // Linear
|
|
"", // ?
|
|
"\tfog = 1.0 - exp2(-8.0 * fog);\n", // exp
|
|
"\tfog = 1.0 - exp2(-8.0 * fog * fog);\n", // exp2
|
|
"\tfog = exp2(-8.0 * (1.0 - fog));\n", // backward exp
|
|
"\tfog = 1.0 - fog;\n fog = exp2(-8.0 * fog * fog);\n" // backward exp2
|
|
};
|
|
|
|
static void WriteFog(ShaderCode& out, const pixel_shader_uid_data* uid_data)
|
|
{
|
|
if (uid_data->fog_fsel == FogType::Off)
|
|
return; // no Fog
|
|
|
|
out.SetConstantsUsed(C_FOGCOLOR, C_FOGCOLOR);
|
|
out.SetConstantsUsed(C_FOGI, C_FOGI);
|
|
out.SetConstantsUsed(C_FOGF, C_FOGF + 1);
|
|
if (uid_data->fog_proj == FogProjection::Perspective)
|
|
{
|
|
// perspective
|
|
// ze = A/(B - (Zs >> B_SHF)
|
|
// TODO: Verify that we want to drop lower bits here! (currently taken over from software
|
|
// renderer)
|
|
// Maybe we want to use "ze = (A << B_SHF)/((B << B_SHF) - Zs)" instead?
|
|
// That's equivalent, but keeps the lower bits of Zs.
|
|
out.Write("\tfloat ze = (" I_FOGF ".x * 16777216.0) / float(" I_FOGI ".y - (zCoord >> " I_FOGI
|
|
".w));\n");
|
|
}
|
|
else
|
|
{
|
|
// orthographic
|
|
// ze = a*Zs (here, no B_SHF)
|
|
out.Write("\tfloat ze = " I_FOGF ".x * float(zCoord) / 16777216.0;\n");
|
|
}
|
|
|
|
// x_adjust = sqrt((x-center)^2 + k^2)/k
|
|
// ze *= x_adjust
|
|
if (uid_data->fog_RangeBaseEnabled)
|
|
{
|
|
out.SetConstantsUsed(C_FOGF, C_FOGF);
|
|
out.Write("\tfloat offset = (2.0 * (rawpos.x / " I_FOGF ".w)) - 1.0 - " I_FOGF ".z;\n"
|
|
"\tfloat floatindex = clamp(9.0 - abs(offset) * 9.0, 0.0, 9.0);\n"
|
|
"\tuint indexlower = uint(floatindex);\n"
|
|
"\tuint indexupper = indexlower + 1u;\n"
|
|
"\tfloat klower = " I_FOGRANGE "[indexlower >> 2u][indexlower & 3u];\n"
|
|
"\tfloat kupper = " I_FOGRANGE "[indexupper >> 2u][indexupper & 3u];\n"
|
|
"\tfloat k = lerp(klower, kupper, frac(floatindex));\n"
|
|
"\tfloat x_adjust = sqrt(offset * offset + k * k) / k;\n"
|
|
"\tze *= x_adjust;\n");
|
|
}
|
|
|
|
out.Write("\tfloat fog = clamp(ze - " I_FOGF ".y, 0.0, 1.0);\n");
|
|
|
|
if (uid_data->fog_fsel >= FogType::Exp)
|
|
{
|
|
out.Write("{}", tev_fog_funcs_table[uid_data->fog_fsel]);
|
|
}
|
|
else
|
|
{
|
|
if (uid_data->fog_fsel != FogType::Linear)
|
|
WARN_LOG_FMT(VIDEO, "Unknown Fog Type! {}", uid_data->fog_fsel);
|
|
}
|
|
|
|
out.Write("\tint ifog = iround(fog * 256.0);\n");
|
|
out.Write("\tprev.rgb = (prev.rgb * (256 - ifog) + " I_FOGCOLOR ".rgb * ifog) >> 8;\n");
|
|
}
|
|
|
|
static void WriteLogicOp(ShaderCode& out, const pixel_shader_uid_data* uid_data)
|
|
{
|
|
static constexpr std::array<const char*, 16> logic_op_mode{
|
|
"int4(0, 0, 0, 0)", // CLEAR
|
|
"prev & fb_value", // AND
|
|
"prev & ~fb_value", // AND_REVERSE
|
|
"prev", // COPY
|
|
"~prev & fb_value", // AND_INVERTED
|
|
"fb_value", // NOOP
|
|
"prev ^ fb_value", // XOR
|
|
"prev | fb_value", // OR
|
|
"~(prev | fb_value)", // NOR
|
|
"~(prev ^ fb_value)", // EQUIV
|
|
"~fb_value", // INVERT
|
|
"prev | ~fb_value", // OR_REVERSE
|
|
"~prev", // COPY_INVERTED
|
|
"~prev | fb_value", // OR_INVERTED
|
|
"~(prev & fb_value)", // NAND
|
|
"int4(255, 255, 255, 255)", // SET
|
|
};
|
|
|
|
out.Write("\tint4 fb_value = iround(initial_ocol0 * 255.0);\n");
|
|
out.Write("\tprev = ({}) & 0xff;\n", logic_op_mode[uid_data->logic_op_mode]);
|
|
}
|
|
|
|
static void WriteColor(ShaderCode& out, APIType api_type, const pixel_shader_uid_data* uid_data,
|
|
bool use_dual_source)
|
|
{
|
|
// D3D requires that the shader outputs be uint when writing to a uint render target for logic op.
|
|
if (api_type == APIType::D3D && uid_data->uint_output)
|
|
{
|
|
if (uid_data->rgba6_format)
|
|
out.Write("\tocol0 = uint4(prev & 0xFC);\n");
|
|
else
|
|
out.Write("\tocol0 = uint4(prev);\n");
|
|
return;
|
|
}
|
|
|
|
if (uid_data->rgba6_format)
|
|
out.Write("\tocol0.rgb = float3(prev.rgb >> 2) / 63.0;\n");
|
|
else
|
|
out.Write("\tocol0.rgb = float3(prev.rgb) / 255.0;\n");
|
|
|
|
// Colors will be blended against the 8-bit alpha from ocol1 and
|
|
// the 6-bit alpha from ocol0 will be written to the framebuffer
|
|
if (uid_data->useDstAlpha)
|
|
{
|
|
out.SetConstantsUsed(C_ALPHA, C_ALPHA);
|
|
out.Write("\tocol0.a = float(" I_ALPHA ".a >> 2) / 63.0;\n");
|
|
|
|
// Use dual-source color blending to perform dst alpha in a single pass
|
|
if (use_dual_source)
|
|
out.Write("\tocol1 = float4(0.0, 0.0, 0.0, float(prev.a) / 255.0);\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tocol0.a = float(prev.a >> 2) / 63.0;\n");
|
|
if (use_dual_source)
|
|
out.Write("\tocol1 = float4(0.0, 0.0, 0.0, float(prev.a) / 255.0);\n");
|
|
}
|
|
}
|
|
|
|
static void WriteBlend(ShaderCode& out, const pixel_shader_uid_data* uid_data)
|
|
{
|
|
if (uid_data->blend_enable)
|
|
{
|
|
using Common::EnumMap;
|
|
static constexpr EnumMap<const char*, SrcBlendFactor::InvDstAlpha> blend_src_factor{
|
|
"float3(0,0,0);", // ZERO
|
|
"float3(1,1,1);", // ONE
|
|
"initial_ocol0.rgb;", // DSTCLR
|
|
"float3(1,1,1) - initial_ocol0.rgb;", // INVDSTCLR
|
|
"src_color.aaa;", // SRCALPHA
|
|
"float3(1,1,1) - src_color.aaa;", // INVSRCALPHA
|
|
"initial_ocol0.aaa;", // DSTALPHA
|
|
"float3(1,1,1) - initial_ocol0.aaa;", // INVDSTALPHA
|
|
};
|
|
static constexpr EnumMap<const char*, SrcBlendFactor::InvDstAlpha> blend_src_factor_alpha{
|
|
"0.0;", // ZERO
|
|
"1.0;", // ONE
|
|
"initial_ocol0.a;", // DSTCLR
|
|
"1.0 - initial_ocol0.a;", // INVDSTCLR
|
|
"src_color.a;", // SRCALPHA
|
|
"1.0 - src_color.a;", // INVSRCALPHA
|
|
"initial_ocol0.a;", // DSTALPHA
|
|
"1.0 - initial_ocol0.a;", // INVDSTALPHA
|
|
};
|
|
static constexpr EnumMap<const char*, DstBlendFactor::InvDstAlpha> blend_dst_factor{
|
|
"float3(0,0,0);", // ZERO
|
|
"float3(1,1,1);", // ONE
|
|
"ocol0.rgb;", // SRCCLR
|
|
"float3(1,1,1) - ocol0.rgb;", // INVSRCCLR
|
|
"src_color.aaa;", // SRCALHA
|
|
"float3(1,1,1) - src_color.aaa;", // INVSRCALPHA
|
|
"initial_ocol0.aaa;", // DSTALPHA
|
|
"float3(1,1,1) - initial_ocol0.aaa;", // INVDSTALPHA
|
|
};
|
|
static constexpr EnumMap<const char*, DstBlendFactor::InvDstAlpha> blend_dst_factor_alpha{
|
|
"0.0;", // ZERO
|
|
"1.0;", // ONE
|
|
"ocol0.a;", // SRCCLR
|
|
"1.0 - ocol0.a;", // INVSRCCLR
|
|
"src_color.a;", // SRCALPHA
|
|
"1.0 - src_color.a;", // INVSRCALPHA
|
|
"initial_ocol0.a;", // DSTALPHA
|
|
"1.0 - initial_ocol0.a;", // INVDSTALPHA
|
|
};
|
|
out.Write("\tfloat4 src_color = {};\n"
|
|
"\tfloat4 blend_src;",
|
|
uid_data->useDstAlpha ? "ocol1" : "ocol0");
|
|
out.Write("\tblend_src.rgb = {}\n", blend_src_factor[uid_data->blend_src_factor]);
|
|
out.Write("\tblend_src.a = {}\n", blend_src_factor_alpha[uid_data->blend_src_factor_alpha]);
|
|
out.Write("\tfloat4 blend_dst;\n");
|
|
out.Write("\tblend_dst.rgb = {}\n", blend_dst_factor[uid_data->blend_dst_factor]);
|
|
out.Write("\tblend_dst.a = {}\n", blend_dst_factor_alpha[uid_data->blend_dst_factor_alpha]);
|
|
|
|
out.Write("\tfloat4 blend_result;\n");
|
|
if (uid_data->blend_subtract)
|
|
{
|
|
out.Write("\tblend_result.rgb = initial_ocol0.rgb * blend_dst.rgb - ocol0.rgb * "
|
|
"blend_src.rgb;\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write(
|
|
"\tblend_result.rgb = initial_ocol0.rgb * blend_dst.rgb + ocol0.rgb * blend_src.rgb;\n");
|
|
}
|
|
|
|
if (uid_data->blend_subtract_alpha)
|
|
out.Write("\tblend_result.a = initial_ocol0.a * blend_dst.a - ocol0.a * blend_src.a;\n");
|
|
else
|
|
out.Write("\tblend_result.a = initial_ocol0.a * blend_dst.a + ocol0.a * blend_src.a;\n");
|
|
}
|
|
else
|
|
{
|
|
out.Write("\tfloat4 blend_result = ocol0;\n");
|
|
}
|
|
|
|
out.Write("\treal_ocol0 = blend_result;\n");
|
|
}
|