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Diffstat (limited to 'res/effectlib/Fxaa3_8.glsllib')
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diff --git a/res/effectlib/Fxaa3_8.glsllib b/res/effectlib/Fxaa3_8.glsllib new file mode 100644 index 0000000..620f565 --- /dev/null +++ b/res/effectlib/Fxaa3_8.glsllib @@ -0,0 +1,1423 @@ +/**************************************************************************** +** +** Copyright (C) 2010 - 2014 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +/*============================================================================ + + + NVIDIA FXAA III.8 by TIMOTHY LOTTES + + +------------------------------------------------------------------------------ + INTEGRATION CHECKLIST +------------------------------------------------------------------------------ +(1.) +In the shader source, +setup defines for the desired configuration. +Example, + + #define FXAA_PC 1 + #define FXAA_HLSL_3 1 + #define FXAA_LINEAR 1 + +(2.) +Then include this file, + + + +(3.) +Then call the FXAA pixel shader from within your desired shader, + + return FxaaPixelShader(pos, posPos, tex, rcpFrame, rcpFrameOpt); + +(4.) +Insure pass prior to FXAA outputs RGBL. +See next section. + +(5.) +Setup engine to provide "rcpFrame" and "rcpFrameOpt" constants. +Not using constants will result in a performance loss. + + // {x_} = 1.0/screenWidthInPixels + // {_y} = 1.0/screenHeightInPixels + float2 rcpFrame + + // This must be from a constant/uniform. + // {x___} = 2.0/screenWidthInPixels + // {_y__} = 2.0/screenHeightInPixels + // {__z_} = 0.5/screenWidthInPixels + // {___w} = 0.5/screenHeightInPixels + float4 rcpFrameOpt + +(6.) +Have FXAA vertex shader run as a full screen triangle, +and output "pos" and "posPos" such that inputs in the pixel shader provide, + + // {xy} = center of pixel + float2 pos, + + // {xy__} = upper left of pixel + // {__zw} = lower right of pixel + float4 posPos, + +(7.) +Insure the texture sampler used by FXAA is set to bilinear filtering. + + +------------------------------------------------------------------------------ + INTEGRATION - RGBL AND COLORSPACE +------------------------------------------------------------------------------ +FXAA3 requires RGBL as input. + +RGB should be LDR (low dynamic range). +Specifically do FXAA after tonemapping. + +RGB data as returned by a texture fetch can be linear or non-linear. +Note an "sRGB format" texture counts as linear, +because the result of a texture fetch is linear data. +Regular "RGBA8" textures in the sRGB colorspace are non-linear. +If a texture fetch results linear data the following is required, + + #define FXAA_LINEAR 1 + +Otherwise, + + #define FXAA_LINEAR 0 + +Luma must be stored in the alpha channel prior to running FXAA. +This luma value must be gamma 2.0 encoded if using FXAA_LINEAR 1. +If using FXAA_LINEAR 0, luma should match the perceptual space used for RGB. + +Example pass before FXAA where output is gamma 2.0 encoded, + + color.rgb = ToneMap(color.rgb); // linear color output + color.rgb = sqrt(color.rgb); // gamma 2.0 color output + return color; + +To use FXAA, + + color.rgb = ToneMap(color.rgb); // linear color output + color.rgb = sqrt(color.rgb); // gamma 2.0 color output + color.a = dot(color.rgb, float3(0.299, 0.587, 0.114)); // compute luma + return color; + +Another example where output is linear encoded, +say for instance writing to an sRGB formated render target, +where the render target does the conversion back to sRGB after blending, + + color.rgb = ToneMap(color.rgb); // linear color output + return color; + +To use FXAA, + + color.rgb = ToneMap(color.rgb); // linear color output + color.a = sqrt(dot(color.rgb, float3(0.299, 0.587, 0.114))); // compute luma + return color; + +Getting luma correct is required for the algorithm to work correctly. + + +------------------------------------------------------------------------------ + COMPLEX INTEGRATION +------------------------------------------------------------------------------ +Q. What if the engine is blending into RGB before wanting to run FXAA? + +A. In the last opaque pass prior to FXAA, + have the pass write out luma into alpha. + Then blend into RGB only. + FXAA should be able to run ok + assuming the blending pass did not any add aliasing. + This should be the common case for particles and common blending passes. + +============================================================================*/ + +/*============================================================================ + + INTEGRATION KNOBS + +============================================================================*/ +// +// FXAA_PS3 and FXAA_360 choose the console algorithm (FXAA3 CONSOLE). +// +// 1 = Use API. +// 0 = Don't use API. +// +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_PS3 + #define FXAA_PS3 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_360 + #define FXAA_360 0 +#endif +/*==========================================================================*/ +#ifndef FXAA_PC + // + // FXAA Quality + // The high quality PC algorithm. + // + #define FXAA_PC 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_PC_CONSOLE + // + // The console algorithm for PC is included + // for developers targeting really low spec machines. + // + #define FXAA_PC_CONSOLE 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_GLSL_120 + #define FXAA_GLSL_120 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_GLSL_130 + #define FXAA_GLSL_130 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_HLSL_3 + #define FXAA_HLSL_3 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_HLSL_4 + #define FXAA_HLSL_4 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_HLSL_5 + #define FXAA_HLSL_5 0 +#endif +/*==========================================================================*/ +#ifndef FXAA_EARLY_EXIT + // + // Controls algorithm's early exit path. + // On PS3 turning this on adds 2 cycles to the shader. + // On 360 turning this off adds 10ths of a millisecond to the shader. + // Turning this off on console will result in a more blurry image. + // So this defaults to on. + // + // 1 = On. + // 0 = Off. + // + #define FXAA_EARLY_EXIT 1 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_DISCARD + // + // Only valid for PC OpenGL currently. + // + // 1 = Use discard on pixels which don't need AA. + // For APIs which enable concurrent TEX+ROP from same surface. + // 0 = Return unchanged color on pixels which don't need AA. + // + #define FXAA_DISCARD 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_LINEAR + // + // 0 = Work in non-linear color space. + // Use this for standard 32-bit RGBA formats. + // + // 1 = Work in RGB=linear, A=non-linear luma. + // Use this for sRGB and FP16 formats. + // Works with either FXAA_ALGORITHM = 1 or 0. + // + #define FXAA_LINEAR 0 +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_FAST_PIXEL_OFFSET + // + // Used for GLSL 120 only. + // + // 1 = GL API supports fast pixel offsets + // 0 = do not use fast pixel offsets + // + #ifdef GL_EXT_gpu_shader4 + #define FXAA_FAST_PIXEL_OFFSET 1 + #endif + #ifdef GL_NV_gpu_shader5 + #define FXAA_FAST_PIXEL_OFFSET 1 + #endif + #ifdef GL_ARB_gpu_shader5 + #define FXAA_FAST_PIXEL_OFFSET 1 + #endif + #ifndef FXAA_FAST_PIXEL_OFFSET + #define FXAA_FAST_PIXEL_OFFSET 0 + #endif +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_GATHER4_ALPHA + // + // 1 = API supports gather4 on alpha channel. + // 0 = API does not support gather4 on alpha channel. + // +#ifdef GL_ES + #if __VERSION__ >= 310 + #ifdef GL_EXT_gpu_shader5 + #define FXAA_GATHER4_ALPHA 1 + #endif + #endif + #ifndef FXAA_GATHER4_ALPHA + #define FXAA_GATHER4_ALPHA 0 + #endif +#else + #if (FXAA_HLSL_5 == 1) + #define FXAA_GATHER4_ALPHA 1 + #endif + #ifdef GL_ARB_gpu_shader5 + #define FXAA_GATHER4_ALPHA 1 + #endif + #ifdef GL_NV_gpu_shader5 + #define FXAA_GATHER4_ALPHA 1 + #endif + #ifdef GL_EXT_gpu_shader5 + #define FXAA_GATHER4_ALPHA 1 + #endif + #ifndef FXAA_GATHER4_ALPHA + #define FXAA_GATHER4_ALPHA 0 + #endif +#endif +#endif + +/*============================================================================ + FXAA CONSOLE - TUNING KNOBS +============================================================================*/ +#ifndef FXAA_CONSOLE__EDGE_SHARPNESS + // + // Consoles the sharpness of edges. + // + // Due to the PS3 being ALU bound, + // there are only two safe values here: 4 and 8. + // These options use the shaders ability to a free *|/ by 4|8. + // + // 8.0 is sharper + // 4.0 is softer + // + #if 1 + #define FXAA_CONSOLE__EDGE_SHARPNESS 8.0 + #else + #define FXAA_CONSOLE__EDGE_SHARPNESS 4.0 + #endif +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_CONSOLE__EDGE_THRESHOLD + // + // The minimum amount of local contrast required to apply algorithm. + // The console setting has a different mapping than the quality setting. + // + // This only applies when FXAA_EARLY_EXIT is 1. + // + // Due to the PS3 being ALU bound, + // there are only two safe values here: 0.25 and 0.125. + // These options use the shaders ability to a free *|/ by 4|8. + // + // 0.125 leaves less aliasing, but is softer + // 0.25 leaves more aliasing, and is sharper + // + #if 1 + #define FXAA_CONSOLE__EDGE_THRESHOLD 0.125 + #else + #define FXAA_CONSOLE__EDGE_THRESHOLD 0.25 + #endif +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_CONSOLE__EDGE_THRESHOLD_MIN + // + // Trims the algorithm from processing darks. + // The console setting has a different mapping than the quality setting. + // + // This only applies when FXAA_EARLY_EXIT is 1. + // + // This does not apply to PS3. + // PS3 was simplified to avoid more shader instructions. + // + #define FXAA_CONSOLE__EDGE_THRESHOLD_MIN 0.05 +#endif + +/*============================================================================ + FXAA QUALITY - TUNING KNOBS +============================================================================*/ +#ifndef FXAA_QUALITY__EDGE_THRESHOLD + // + // The minimum amount of local contrast required to apply algorithm. + // + // 1/3 - too little + // 1/4 - low quality + // 1/6 - default + // 1/8 - high quality + // 1/16 - overkill + // + #define FXAA_QUALITY__EDGE_THRESHOLD (1.0/6.0) +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_QUALITY__EDGE_THRESHOLD_MIN + // + // Trims the algorithm from processing darks. + // + // 1/32 - visible limit + // 1/16 - high quality + // 1/12 - upper limit (default, the start of visible unfiltered edges) + // + #define FXAA_QUALITY__EDGE_THRESHOLD_MIN (1.0/12.0) +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_QUALITY__SUBPIX_CAP + // + // Insures fine detail is not completely removed. + // This partly overrides FXAA_SUBPIX_TRIM. + // + // 3/4 - default amount of filtering + // 7/8 - high amount of filtering + // 1 - no capping of filtering + // + #define FXAA_QUALITY__SUBPIX_CAP (3.0/4.0) +#endif +/*--------------------------------------------------------------------------*/ +#ifndef FXAA_QUALITY__SUBPIX_TRIM + // + // Controls removal of sub-pixel aliasing, + // + // 1/2 - low removal (sharper but more sub-pixel aliasing) + // 1/3 - medium removal + // 1/4 - default removal + // 1/8 - high removal + // 0 - complete removal (softer but less sub-pixel aliasing) + // + #define FXAA_QUALITY__SUBPIX_TRIM (1.0/4.0) +#endif + + +/*============================================================================ + + API PORTING + +============================================================================*/ +#if FXAA_GLSL_120 + // Requires, + // #version 120 + // And at least, + // #extension GL_EXT_gpu_shader4 : enable + // (or set FXAA_FAST_PIXEL_OFFSET 1 to work like DX9) + #define half float + #define half2 vec2 + #define half3 vec3 + #define half4 vec4 + #define int2 ivec2 + #define float2 vec2 + #define float3 vec3 + #define float4 vec4 + #define FxaaInt2 ivec2 + #define FxaaFloat2 vec2 + #define FxaaFloat3 vec3 + #define FxaaFloat4 vec4 + #define FxaaDiscard discard + #define FxaaDot3(a, b) dot(a, b) + #define FxaaSat(x) clamp(x, 0.0, 1.0) + #define FxaaLerp(x,y,s) mix(x,y,s) + #define FxaaTex sampler2D + #define FxaaTexTop(t, p) texture2DLod(t, p, 0.0) + #if (FXAA_FAST_PIXEL_OFFSET == 1) + #define FxaaTexOff(t, p, o, r) texture2DLodOffset(t, p, 0.0, o) + #else + #define FxaaTexOff(t, p, o, r) texture2DLod(t, p + (o * r), 0.0) + #endif + #if (FXAA_GATHER4_ALPHA == 1) + // use #extension GL_ARB_gpu_shader5 : enable + #define FxaaTexAlpha4(t, p, r) textureGather(t, p, 3) + #define FxaaTexOffAlpha4(t, p, o, r) textureGatherOffset(t, p, o, 3) + #endif +#endif +/*--------------------------------------------------------------------------*/ +#if FXAA_GLSL_130 + // Requires "#version 130" or better + #define half float + #define half2 vec2 + #define half3 vec3 + #define half4 vec4 + #define int2 ivec2 + #define float2 vec2 + #define float3 vec3 + #define float4 vec4 + #define FxaaInt2 ivec2 + #define FxaaFloat2 vec2 + #define FxaaFloat3 vec3 + #define FxaaFloat4 vec4 + #define FxaaDiscard discard + #define FxaaDot3(a, b) dot(a, b) + #define FxaaSat(x) clamp(x, 0.0, 1.0) + #define FxaaLerp(x,y,s) mix(x,y,s) + #define FxaaTex sampler2D + #define FxaaTexTop(t, p) textureLod(t, p, 0.0) + #define FxaaTexOff(t, p, o, r) textureLodOffset(t, p, 0.0, o) + #if (FXAA_GATHER4_ALPHA == 1) + // use #extension GL_ARB_gpu_shader5 : enable + #define FxaaTexAlpha4(t, p, r) textureGather(t, p, 3) + #define FxaaTexOffAlpha4(t, p, o, r) textureGatherOffset(t, p, o, 3) + #endif +#endif +/*--------------------------------------------------------------------------*/ +#if (FXAA_HLSL_3 == 1) || (FXAA_360 == 1) + #define int2 float2 + #define FxaaInt2 float2 + #define FxaaFloat2 float2 + #define FxaaFloat3 float3 + #define FxaaFloat4 float4 + #define FxaaDiscard clip(-1) + #define FxaaDot3(a, b) dot(a, b) + #define FxaaSat(x) saturate(x) + #define FxaaLerp(x,y,s) lerp(x,y,s) + #define FxaaTex sampler2D + #define FxaaTexTop(t, p) tex2Dlod(t, float4(p, 0.0, 0.0)) + #define FxaaTexOff(t, p, o, r) tex2Dlod(t, float4(p + (o * r), 0, 0)) +#endif +/*--------------------------------------------------------------------------*/ +#if FXAA_HLSL_4 + #define FxaaInt2 int2 + #define FxaaFloat2 float2 + #define FxaaFloat3 float3 + #define FxaaFloat4 float4 + #define FxaaDiscard clip(-1) + #define FxaaDot3(a, b) dot(a, b) + #define FxaaSat(x) saturate(x) + #define FxaaLerp(x,y,s) lerp(x,y,s) + struct FxaaTex { SamplerState smpl; Texture2D tex; }; + #define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0) + #define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o) +#endif +/*--------------------------------------------------------------------------*/ +#if FXAA_HLSL_5 + #define FxaaInt2 int2 + #define FxaaFloat2 float2 + #define FxaaFloat3 float3 + #define FxaaFloat4 float4 + #define FxaaDiscard clip(-1) + #define FxaaDot3(a, b) dot(a, b) + #define FxaaSat(x) saturate(x) + #define FxaaLerp(x,y,s) lerp(x,y,s) + struct FxaaTex { SamplerState smpl; Texture2D tex; }; + #define FxaaTexTop(t, p) t.tex.SampleLevel(t.smpl, p, 0.0) + #define FxaaTexOff(t, p, o, r) t.tex.SampleLevel(t.smpl, p, 0.0, o) + #define FxaaTexAlpha4(t, p, r) t.tex.GatherAlpha(t.smpl, p) + #define FxaaTexOffAlpha4(t, p, o, r) t.tex.GatherAlpha(t.smpl, p, o) +#endif + + + +/*============================================================================ + + FXAA3 CONSOLE - 360 PIXEL SHADER + +------------------------------------------------------------------------------ +Might be some optimizations left here, +as of this latest change didn't have a PIX dump to verify if TEX bound. +============================================================================*/ +#if (FXAA_360 == 1) +/*--------------------------------------------------------------------------*/ +half4 FxaaPixelShader( + // {xy} = center of pixel + float2 pos, + // {xy__} = upper left of pixel + // {__zw} = lower right of pixel + float4 posPos, + // {rgb_} = color in linear or perceptual color space + // {___a} = alpha output is junk value + FxaaTex tex, + // This must be from a constant/uniform. + // {xy} = rcpFrame not used on PC version of FXAA Console + float2 rcpFrame, + // This must be from a constant/uniform. + // {x___} = 2.0/screenWidthInPixels + // {_y__} = 2.0/screenHeightInPixels + // {__z_} = 0.5/screenWidthInPixels + // {___w} = 0.5/screenHeightInPixels + float4 rcpFrameOpt +) { +/*--------------------------------------------------------------------------*/ + half4 lumaNwNeSwSe; + lumaNwNeSwSe.x = FxaaTexTop(tex, posPos.xy).w; + lumaNwNeSwSe.y = FxaaTexTop(tex, posPos.zy).w; + lumaNwNeSwSe.z = FxaaTexTop(tex, posPos.xw).w; + lumaNwNeSwSe.w = FxaaTexTop(tex, posPos.zw).w; +/*--------------------------------------------------------------------------*/ + half4 rgbyM = FxaaTexTop(tex, pos.xy); +/*--------------------------------------------------------------------------*/ + lumaNwNeSwSe.y += 1.0/384.0; +/*--------------------------------------------------------------------------*/ + half2 lumaMinTemp = min(lumaNwNeSwSe.xy, lumaNwNeSwSe.zw); + half2 lumaMaxTemp = max(lumaNwNeSwSe.xy, lumaNwNeSwSe.zw); +/*--------------------------------------------------------------------------*/ + half lumaMin = min(lumaMinTemp.x, lumaMinTemp.y); + half lumaMax = max(lumaMaxTemp.x, lumaMaxTemp.y); +/*--------------------------------------------------------------------------*/ + half lumaMinM = min(lumaMin, rgbyM.w); + half lumaMaxM = max(lumaMax, rgbyM.w); + if((lumaMaxM - lumaMinM) < max(FXAA_CONSOLE__EDGE_THRESHOLD_MIN, lumaMax * FXAA_CONSOLE__EDGE_THRESHOLD)) + #if (FXAA_DISCARD == 1) + FxaaDiscard; + #else + return rgbyM; + #endif +/*--------------------------------------------------------------------------*/ + half2 dir; + dir.x = dot(lumaNwNeSwSe, float4(-1.0, -1.0, 1.0, 1.0)); + dir.y = dot(lumaNwNeSwSe, float4( 1.0, -1.0, 1.0,-1.0)); +/*--------------------------------------------------------------------------*/ + half2 dir1; + dir1 = normalize(dir.xy); +/*--------------------------------------------------------------------------*/ + half dirAbsMinTimesC = min(abs(dir1.x), abs(dir1.y)) * FXAA_CONSOLE__EDGE_SHARPNESS; + half2 dir2; + dir2 = clamp(dir1.xy / dirAbsMinTimesC, -2.0, 2.0); +/*--------------------------------------------------------------------------*/ + half4 rgbyN1 = FxaaTexTop(tex, pos.xy - dir1 * rcpFrameOpt.zw); + half4 rgbyP1 = FxaaTexTop(tex, pos.xy + dir1 * rcpFrameOpt.zw); + half4 rgbyN2 = FxaaTexTop(tex, pos.xy - dir2 * rcpFrameOpt.xy); + half4 rgbyP2 = FxaaTexTop(tex, pos.xy + dir2 * rcpFrameOpt.xy); +/*--------------------------------------------------------------------------*/ + half4 rgbyA = rgbyN1 * 0.5 + rgbyP1 * 0.5; + half4 rgbyB = rgbyN2 * 0.25 + rgbyP2 * 0.25 + rgbyA * 0.5; +/*--------------------------------------------------------------------------*/ + bool twoTap = (rgbyB.w < lumaMin) || (rgbyB.w > lumaMax); + if(twoTap) rgbyB.xyz = rgbyA.xyz; + return rgbyB; +} +/*==========================================================================*/ +#endif + + + +/*============================================================================ + + FXAA3 CONSOLE - OPTIMIZED PS3 PIXEL SHADER (NO EARLY EXIT) + +============================================================================== +The code below does not exactly match the assembly. +I have a feeling that 12 cycles is possible, but was not able to get there. +Might have to increase register count to get full performance. +Note this shader does not use perspective interpolation. + +Use the following cgc options, + + --fenable-bx2 --fastmath --fastprecision --nofloatbindings + +------------------------------------------------------------------------------ + NVSHADERPERF OUTPUT +------------------------------------------------------------------------------ +For reference and to aid in debug, output of NVShaderPerf should match this, + +Shader to schedule: + 0: texpkb h0.w(TRUE), v5.zyxx, #0 + 2: addh h2.z(TRUE), h0.w, constant(0.001953, 0.000000, 0.000000, 0.000000).x + 4: texpkb h0.w(TRUE), v5.xwxx, #0 + 6: addh h0.z(TRUE), -h2, h0.w + 7: texpkb h1.w(TRUE), v5, #0 + 9: addh h0.x(TRUE), h0.z, -h1.w + 10: addh h3.w(TRUE), h0.z, h1 + 11: texpkb h2.w(TRUE), v5.zwzz, #0 + 13: addh h0.z(TRUE), h3.w, -h2.w + 14: addh h0.x(TRUE), h2.w, h0 + 15: nrmh h1.xz(TRUE), h0_n + 16: minh_m8 h0.x(TRUE), |h1|, |h1.z| + 17: maxh h4.w(TRUE), h0, h1 + 18: divx h2.xy(TRUE), h1_n.xzzw, h0_n + 19: movr r1.zw(TRUE), v4.xxxy + 20: madr r2.xz(TRUE), -h1, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).zzww, r1.zzww + 22: minh h5.w(TRUE), h0, h1 + 23: texpkb h0(TRUE), r2.xzxx, #0 + 25: madr r0.zw(TRUE), h1.xzxz, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w), r1 + 27: maxh h4.x(TRUE), h2.z, h2.w + 28: texpkb h1(TRUE), r0.zwzz, #0 + 30: addh_d2 h1(TRUE), h0, h1 + 31: madr r0.xy(TRUE), -h2, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).xyxx, r1.zwzz + 33: texpkb h0(TRUE), r0, #0 + 35: minh h4.z(TRUE), h2, h2.w + 36: fenct TRUE + 37: madr r1.xy(TRUE), h2, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).xyxx, r1.zwzz + 39: texpkb h2(TRUE), r1, #0 + 41: addh_d2 h0(TRUE), h0, h2 + 42: maxh h2.w(TRUE), h4, h4.x + 43: minh h2.x(TRUE), h5.w, h4.z + 44: addh_d2 h0(TRUE), h0, h1 + 45: slth h2.x(TRUE), h0.w, h2 + 46: sgth h2.w(TRUE), h0, h2 + 47: movh h0(TRUE), h0 + 48: addx.c0 rc(TRUE), h2, h2.w + 49: movh h0(c0.NE.x), h1 + +IPU0 ------ Simplified schedule: -------- +Pass | Unit | uOp | PC: Op +-----+--------+------+------------------------- + 1 | SCT0/1 | mov | 0: TXLr h0.w, g[TEX1].zyxx, const.xxxx, TEX0; + | TEX | txl | 0: TXLr h0.w, g[TEX1].zyxx, const.xxxx, TEX0; + | SCB1 | add | 2: ADDh h2.z, h0.--w-, const.--x-; + | | | + 2 | SCT0/1 | mov | 4: TXLr h0.w, g[TEX1].xwxx, const.xxxx, TEX0; + | TEX | txl | 4: TXLr h0.w, g[TEX1].xwxx, const.xxxx, TEX0; + | SCB1 | add | 6: ADDh h0.z,-h2, h0.--w-; + | | | + 3 | SCT0/1 | mov | 7: TXLr h1.w, g[TEX1], const.xxxx, TEX0; + | TEX | txl | 7: TXLr h1.w, g[TEX1], const.xxxx, TEX0; + | SCB0 | add | 9: ADDh h0.x, h0.z---,-h1.w---; + | SCB1 | add | 10: ADDh h3.w, h0.---z, h1; + | | | + 4 | SCT0/1 | mov | 11: TXLr h2.w, g[TEX1].zwzz, const.xxxx, TEX0; + | TEX | txl | 11: TXLr h2.w, g[TEX1].zwzz, const.xxxx, TEX0; + | SCB0 | add | 14: ADDh h0.x, h2.w---, h0; + | SCB1 | add | 13: ADDh h0.z, h3.--w-,-h2.--w-; + | | | + 5 | SCT1 | mov | 15: NRMh h1.xz, h0; + | SRB | nrm | 15: NRMh h1.xz, h0; + | SCB0 | min | 16: MINh*8 h0.x, |h1|, |h1.z---|; + | SCB1 | max | 17: MAXh h4.w, h0, h1; + | | | + 6 | SCT0 | div | 18: DIVx h2.xy, h1.xz--, h0; + | SCT1 | mov | 19: MOVr r1.zw, g[TEX0].--xy; + | SCB0 | mad | 20: MADr r2.xz,-h1, const.z-w-, r1.z-w-; + | SCB1 | min | 22: MINh h5.w, h0, h1; + | | | + 7 | SCT0/1 | mov | 23: TXLr h0, r2.xzxx, const.xxxx, TEX0; + | TEX | txl | 23: TXLr h0, r2.xzxx, const.xxxx, TEX0; + | SCB0 | max | 27: MAXh h4.x, h2.z---, h2.w---; + | SCB1 | mad | 25: MADr r0.zw, h1.--xz, const, r1; + | | | + 8 | SCT0/1 | mov | 28: TXLr h1, r0.zwzz, const.xxxx, TEX0; + | TEX | txl | 28: TXLr h1, r0.zwzz, const.xxxx, TEX0; + | SCB0/1 | add | 30: ADDh/2 h1, h0, h1; + | | | + 9 | SCT0 | mad | 31: MADr r0.xy,-h2, const.xy--, r1.zw--; + | SCT1 | mov | 33: TXLr h0, r0, const.zzzz, TEX0; + | TEX | txl | 33: TXLr h0, r0, const.zzzz, TEX0; + | SCB1 | min | 35: MINh h4.z, h2, h2.--w-; + | | | + 10 | SCT0 | mad | 37: MADr r1.xy, h2, const.xy--, r1.zw--; + | SCT1 | mov | 39: TXLr h2, r1, const.zzzz, TEX0; + | TEX | txl | 39: TXLr h2, r1, const.zzzz, TEX0; + | SCB0/1 | add | 41: ADDh/2 h0, h0, h2; + | | | + 11 | SCT0 | min | 43: MINh h2.x, h5.w---, h4.z---; + | SCT1 | max | 42: MAXh h2.w, h4, h4.---x; + | SCB0/1 | add | 44: ADDh/2 h0, h0, h1; + | | | + 12 | SCT0 | set | 45: SLTh h2.x, h0.w---, h2; + | SCT1 | set | 46: SGTh h2.w, h0, h2; + | SCB0/1 | mul | 47: MOVh h0, h0; + | | | + 13 | SCT0 | mad | 48: ADDxc0_s rc, h2, h2.w---; + | SCB0/1 | mul | 49: MOVh h0(NE0.xxxx), h1; + +Pass SCT TEX SCB + 1: 0% 100% 25% + 2: 0% 100% 25% + 3: 0% 100% 50% + 4: 0% 100% 50% + 5: 0% 0% 50% + 6: 100% 0% 75% + 7: 0% 100% 75% + 8: 0% 100% 100% + 9: 0% 100% 25% + 10: 0% 100% 100% + 11: 50% 0% 100% + 12: 50% 0% 100% + 13: 25% 0% 100% + +MEAN: 17% 61% 67% + +Pass SCT0 SCT1 TEX SCB0 SCB1 + 1: 0% 0% 100% 0% 100% + 2: 0% 0% 100% 0% 100% + 3: 0% 0% 100% 100% 100% + 4: 0% 0% 100% 100% 100% + 5: 0% 0% 0% 100% 100% + 6: 100% 100% 0% 100% 100% + 7: 0% 0% 100% 100% 100% + 8: 0% 0% 100% 100% 100% + 9: 0% 0% 100% 0% 100% + 10: 0% 0% 100% 100% 100% + 11: 100% 100% 0% 100% 100% + 12: 100% 100% 0% 100% 100% + 13: 100% 0% 0% 100% 100% + +MEAN: 30% 23% 61% 76% 100% +Fragment Performance Setup: Driver RSX Compiler, GPU RSX, Flags 0x5 +Results 13 cycles, 3 r regs, 923,076,923 pixels/s +============================================================================*/ +#if (FXAA_PS3 == 1) && (FXAA_EARLY_EXIT == 0) +/*--------------------------------------------------------------------------*/ +#pragma disablepc all +#pragma option O3 +#pragma option OutColorPrec=fp16 +#pragma texformat default RGBA8 +/*==========================================================================*/ +half4 FxaaPixelShader( + // {xy} = center of pixel + float2 pos, + // {xy__} = upper left of pixel + // {__zw} = lower right of pixel + float4 posPos, + // {rgb_} = color in linear or perceptual color space + // {___a} = luma in perceptual color space (not linear) + sampler2D tex, + // This must be from a constant/uniform. + // {xy} = rcpFrame not used on PS3 + float2 rcpFrame, + // This must be from a constant/uniform. + // {x___} = 2.0/screenWidthInPixels + // {_y__} = 2.0/screenHeightInPixels + // {__z_} = 0.5/screenWidthInPixels + // {___w} = 0.5/screenHeightInPixels + float4 rcpFrameOpt +) { +/*--------------------------------------------------------------------------*/ +// (1) + half4 dir; + half4 lumaNe = h4tex2Dlod(tex, half4(posPos.zy, 0, 0)); + lumaNe.w += half(1.0/512.0); + dir.x = -lumaNe.w; + dir.z = -lumaNe.w; +/*--------------------------------------------------------------------------*/ +// (2) + half4 lumaSw = h4tex2Dlod(tex, half4(posPos.xw, 0, 0)); + dir.x += lumaSw.w; + dir.z += lumaSw.w; +/*--------------------------------------------------------------------------*/ +// (3) + half4 lumaNw = h4tex2Dlod(tex, half4(posPos.xy, 0, 0)); + dir.x -= lumaNw.w; + dir.z += lumaNw.w; +/*--------------------------------------------------------------------------*/ +// (4) + half4 lumaSe = h4tex2Dlod(tex, half4(posPos.zw, 0, 0)); + dir.x += lumaSe.w; + dir.z -= lumaSe.w; +/*--------------------------------------------------------------------------*/ +// (5) + half4 dir1_pos; + dir1_pos.xy = normalize(dir.xyz).xz; + half dirAbsMinTimesC = min(abs(dir1_pos.x), abs(dir1_pos.y)) * half(FXAA_CONSOLE__EDGE_SHARPNESS); +/*--------------------------------------------------------------------------*/ +// (6) + half4 dir2_pos; + dir2_pos.xy = clamp(dir1_pos.xy / dirAbsMinTimesC, half(-2.0), half(2.0)); + dir1_pos.zw = pos.xy; + dir2_pos.zw = pos.xy; + half4 temp1N; + temp1N.xy = dir1_pos.zw - dir1_pos.xy * rcpFrameOpt.zw; +/*--------------------------------------------------------------------------*/ +// (7) + temp1N = h4tex2Dlod(tex, half4(temp1N.xy, 0.0, 0.0)); + half4 rgby1; + rgby1.xy = dir1_pos.zw + dir1_pos.xy * rcpFrameOpt.zw; +/*--------------------------------------------------------------------------*/ +// (8) + rgby1 = h4tex2Dlod(tex, half4(rgby1.xy, 0.0, 0.0)); + rgby1 = (temp1N + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ +// (9) + half4 temp2N; + temp2N.xy = dir2_pos.zw - dir2_pos.xy * rcpFrameOpt.xy; + temp2N = h4tex2Dlod(tex, half4(temp2N.xy, 0.0, 0.0)); +/*--------------------------------------------------------------------------*/ +// (10) + half4 rgby2; + rgby2.xy = dir2_pos.zw + dir2_pos.xy * rcpFrameOpt.xy; + rgby2 = h4tex2Dlod(tex, half4(rgby2.xy, 0.0, 0.0)); + rgby2 = (temp2N + rgby2) * 0.5; +/*--------------------------------------------------------------------------*/ +// (11) + // compilier moves these scalar ops up to other cycles + half lumaMin = min(min(lumaNw.w, lumaSw.w), min(lumaNe.w, lumaSe.w)); + half lumaMax = max(max(lumaNw.w, lumaSw.w), max(lumaNe.w, lumaSe.w)); + rgby2 = (rgby2 + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ +// (12) + bool twoTapLt = rgby2.w < lumaMin; + bool twoTapGt = rgby2.w > lumaMax; +/*--------------------------------------------------------------------------*/ +// (13) + if(twoTapLt || twoTapGt) rgby2 = rgby1; +/*--------------------------------------------------------------------------*/ + return rgby2; } +/*==========================================================================*/ +#endif + + + +/*============================================================================ + + FXAA3 CONSOLE - OPTIMIZED PS3 PIXEL SHADER (WITH EARLY EXIT) + +============================================================================== +The code mostly matches the assembly. +I have a feeling that 14 cycles is possible, but was not able to get there. +Might have to increase register count to get full performance. +Note this shader does not use perspective interpolation. + +Use the following cgc options, + + --fenable-bx2 --fastmath --fastprecision --nofloatbindings + +------------------------------------------------------------------------------ + NVSHADERPERF OUTPUT +------------------------------------------------------------------------------ +For reference and to aid in debug, output of NVShaderPerf should match this, + +Shader to schedule: + 0: texpkb h0.w(TRUE), v5.zyxx, #0 + 2: addh h2.y(TRUE), h0.w, constant(0.001953, 0.000000, 0.000000, 0.000000).x + 4: texpkb h1.w(TRUE), v5.xwxx, #0 + 6: addh h0.x(TRUE), h1.w, -h2.y + 7: texpkb h2.w(TRUE), v5.zwzz, #0 + 9: minh h4.w(TRUE), h2.y, h2 + 10: maxh h5.x(TRUE), h2.y, h2.w + 11: texpkb h0.w(TRUE), v5, #0 + 13: addh h3.w(TRUE), -h0, h0.x + 14: addh h0.x(TRUE), h0.w, h0 + 15: addh h0.z(TRUE), -h2.w, h0.x + 16: addh h0.x(TRUE), h2.w, h3.w + 17: minh h5.y(TRUE), h0.w, h1.w + 18: nrmh h2.xz(TRUE), h0_n + 19: minh_m8 h2.w(TRUE), |h2.x|, |h2.z| + 20: divx h4.xy(TRUE), h2_n.xzzw, h2_n.w + 21: movr r1.zw(TRUE), v4.xxxy + 22: maxh h2.w(TRUE), h0, h1 + 23: fenct TRUE + 24: madr r0.xy(TRUE), -h2.xzzw, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).zwzz, r1.zwzz + 26: texpkb h0(TRUE), r0, #0 + 28: maxh h5.x(TRUE), h2.w, h5 + 29: minh h5.w(TRUE), h5.y, h4 + 30: madr r1.xy(TRUE), h2.xzzw, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).zwzz, r1.zwzz + 32: texpkb h2(TRUE), r1, #0 + 34: addh_d2 h2(TRUE), h0, h2 + 35: texpkb h1(TRUE), v4, #0 + 37: maxh h5.y(TRUE), h5.x, h1.w + 38: minh h4.w(TRUE), h1, h5 + 39: madr r0.xy(TRUE), -h4, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).xyxx, r1.zwzz + 41: texpkb h0(TRUE), r0, #0 + 43: addh_m8 h5.z(TRUE), h5.y, -h4.w + 44: madr r2.xy(TRUE), h4, constant(cConst5.x, cConst5.y, cConst5.z, cConst5.w).xyxx, r1.zwzz + 46: texpkb h3(TRUE), r2, #0 + 48: addh_d2 h0(TRUE), h0, h3 + 49: addh_d2 h3(TRUE), h0, h2 + 50: movh h0(TRUE), h3 + 51: slth h3.x(TRUE), h3.w, h5.w + 52: sgth h3.w(TRUE), h3, h5.x + 53: addx.c0 rc(TRUE), h3.x, h3 + 54: slth.c0 rc(TRUE), h5.z, h5 + 55: movh h0(c0.NE.w), h2 + 56: movh h0(c0.NE.x), h1 + +IPU0 ------ Simplified schedule: -------- +Pass | Unit | uOp | PC: Op +-----+--------+------+------------------------- + 1 | SCT0/1 | mov | 0: TXLr h0.w, g[TEX1].zyxx, const.xxxx, TEX0; + | TEX | txl | 0: TXLr h0.w, g[TEX1].zyxx, const.xxxx, TEX0; + | SCB0 | add | 2: ADDh h2.y, h0.-w--, const.-x--; + | | | + 2 | SCT0/1 | mov | 4: TXLr h1.w, g[TEX1].xwxx, const.xxxx, TEX0; + | TEX | txl | 4: TXLr h1.w, g[TEX1].xwxx, const.xxxx, TEX0; + | SCB0 | add | 6: ADDh h0.x, h1.w---,-h2.y---; + | | | + 3 | SCT0/1 | mov | 7: TXLr h2.w, g[TEX1].zwzz, const.xxxx, TEX0; + | TEX | txl | 7: TXLr h2.w, g[TEX1].zwzz, const.xxxx, TEX0; + | SCB0 | max | 10: MAXh h5.x, h2.y---, h2.w---; + | SCB1 | min | 9: MINh h4.w, h2.---y, h2; + | | | + 4 | SCT0/1 | mov | 11: TXLr h0.w, g[TEX1], const.xxxx, TEX0; + | TEX | txl | 11: TXLr h0.w, g[TEX1], const.xxxx, TEX0; + | SCB0 | add | 14: ADDh h0.x, h0.w---, h0; + | SCB1 | add | 13: ADDh h3.w,-h0, h0.---x; + | | | + 5 | SCT0 | mad | 16: ADDh h0.x, h2.w---, h3.w---; + | SCT1 | mad | 15: ADDh h0.z,-h2.--w-, h0.--x-; + | SCB0 | min | 17: MINh h5.y, h0.-w--, h1.-w--; + | | | + 6 | SCT1 | mov | 18: NRMh h2.xz, h0; + | SRB | nrm | 18: NRMh h2.xz, h0; + | SCB1 | min | 19: MINh*8 h2.w, |h2.---x|, |h2.---z|; + | | | + 7 | SCT0 | div | 20: DIVx h4.xy, h2.xz--, h2.ww--; + | SCT1 | mov | 21: MOVr r1.zw, g[TEX0].--xy; + | SCB1 | max | 22: MAXh h2.w, h0, h1; + | | | + 8 | SCT0 | mad | 24: MADr r0.xy,-h2.xz--, const.zw--, r1.zw--; + | SCT1 | mov | 26: TXLr h0, r0, const.xxxx, TEX0; + | TEX | txl | 26: TXLr h0, r0, const.xxxx, TEX0; + | SCB0 | max | 28: MAXh h5.x, h2.w---, h5; + | SCB1 | min | 29: MINh h5.w, h5.---y, h4; + | | | + 9 | SCT0 | mad | 30: MADr r1.xy, h2.xz--, const.zw--, r1.zw--; + | SCT1 | mov | 32: TXLr h2, r1, const.xxxx, TEX0; + | TEX | txl | 32: TXLr h2, r1, const.xxxx, TEX0; + | SCB0/1 | add | 34: ADDh/2 h2, h0, h2; + | | | + 10 | SCT0/1 | mov | 35: TXLr h1, g[TEX0], const.xxxx, TEX0; + | TEX | txl | 35: TXLr h1, g[TEX0], const.xxxx, TEX0; + | SCB0 | max | 37: MAXh h5.y, h5.-x--, h1.-w--; + | SCB1 | min | 38: MINh h4.w, h1, h5; + | | | + 11 | SCT0 | mad | 39: MADr r0.xy,-h4, const.xy--, r1.zw--; + | SCT1 | mov | 41: TXLr h0, r0, const.zzzz, TEX0; + | TEX | txl | 41: TXLr h0, r0, const.zzzz, TEX0; + | SCB0 | mad | 44: MADr r2.xy, h4, const.xy--, r1.zw--; + | SCB1 | add | 43: ADDh*8 h5.z, h5.--y-,-h4.--w-; + | | | + 12 | SCT0/1 | mov | 46: TXLr h3, r2, const.xxxx, TEX0; + | TEX | txl | 46: TXLr h3, r2, const.xxxx, TEX0; + | SCB0/1 | add | 48: ADDh/2 h0, h0, h3; + | | | + 13 | SCT0/1 | mad | 49: ADDh/2 h3, h0, h2; + | SCB0/1 | mul | 50: MOVh h0, h3; + | | | + 14 | SCT0 | set | 51: SLTh h3.x, h3.w---, h5.w---; + | SCT1 | set | 52: SGTh h3.w, h3, h5.---x; + | SCB0 | set | 54: SLThc0 rc, h5.z---, h5; + | SCB1 | add | 53: ADDxc0_s rc, h3.---x, h3; + | | | + 15 | SCT0/1 | mul | 55: MOVh h0(NE0.wwww), h2; + | SCB0/1 | mul | 56: MOVh h0(NE0.xxxx), h1; + +Pass SCT TEX SCB + 1: 0% 100% 25% + 2: 0% 100% 25% + 3: 0% 100% 50% + 4: 0% 100% 50% + 5: 50% 0% 25% + 6: 0% 0% 25% + 7: 100% 0% 25% + 8: 0% 100% 50% + 9: 0% 100% 100% + 10: 0% 100% 50% + 11: 0% 100% 75% + 12: 0% 100% 100% + 13: 100% 0% 100% + 14: 50% 0% 50% + 15: 100% 0% 100% + +MEAN: 26% 60% 56% + +Pass SCT0 SCT1 TEX SCB0 SCB1 + 1: 0% 0% 100% 100% 0% + 2: 0% 0% 100% 100% 0% + 3: 0% 0% 100% 100% 100% + 4: 0% 0% 100% 100% 100% + 5: 100% 100% 0% 100% 0% + 6: 0% 0% 0% 0% 100% + 7: 100% 100% 0% 0% 100% + 8: 0% 0% 100% 100% 100% + 9: 0% 0% 100% 100% 100% + 10: 0% 0% 100% 100% 100% + 11: 0% 0% 100% 100% 100% + 12: 0% 0% 100% 100% 100% + 13: 100% 100% 0% 100% 100% + 14: 100% 100% 0% 100% 100% + 15: 100% 100% 0% 100% 100% + +MEAN: 33% 33% 60% 86% 80% +Fragment Performance Setup: Driver RSX Compiler, GPU RSX, Flags 0x5 +Results 15 cycles, 3 r regs, 800,000,000 pixels/s +============================================================================*/ +#if (FXAA_PS3 == 1) && (FXAA_EARLY_EXIT == 1) +/*--------------------------------------------------------------------------*/ +#pragma disablepc all +#pragma option O2 +#pragma option OutColorPrec=fp16 +#pragma texformat default RGBA8 +/*==========================================================================*/ +half4 FxaaPixelShader( + // {xy} = center of pixel + float2 pos, + // {xy__} = upper left of pixel + // {__zw} = lower right of pixel + float4 posPos, + // {rgb_} = color in linear or perceptual color space + // {___a} = luma in perceptual color space (not linear) + sampler2D tex, + // This must be from a constant/uniform. + // {xy} = rcpFrame not used on PS3 + float2 rcpFrame, + // This must be from a constant/uniform. + // {x___} = 2.0/screenWidthInPixels + // {_y__} = 2.0/screenHeightInPixels + // {__z_} = 0.5/screenWidthInPixels + // {___w} = 0.5/screenHeightInPixels + float4 rcpFrameOpt +) { +/*--------------------------------------------------------------------------*/ +// (1) + half4 rgbyNe = h4tex2Dlod(tex, half4(posPos.zy, 0, 0)); + half lumaNe = rgbyNe.w + half(1.0/512.0); +/*--------------------------------------------------------------------------*/ +// (2) + half4 lumaSw = h4tex2Dlod(tex, half4(posPos.xw, 0, 0)); + half lumaSwNegNe = lumaSw.w - lumaNe; +/*--------------------------------------------------------------------------*/ +// (3) + half4 lumaNw = h4tex2Dlod(tex, half4(posPos.xy, 0, 0)); + half lumaMaxNwSw = max(lumaNw.w, lumaSw.w); + half lumaMinNwSw = min(lumaNw.w, lumaSw.w); +/*--------------------------------------------------------------------------*/ +// (4) + half4 lumaSe = h4tex2Dlod(tex, half4(posPos.zw, 0, 0)); + half dirZ = lumaNw.w + lumaSwNegNe; + half dirX = -lumaNw.w + lumaSwNegNe; +/*--------------------------------------------------------------------------*/ +// (5) + half3 dir; + dir.y = 0.0; + dir.x = lumaSe.w + dirX; + dir.z = -lumaSe.w + dirZ; + half lumaMinNeSe = min(lumaNe, lumaSe.w); +/*--------------------------------------------------------------------------*/ +// (6) + half4 dir1_pos; + dir1_pos.xy = normalize(dir).xz; + half dirAbsMinTimes8 = min(abs(dir1_pos.x), abs(dir1_pos.y)) * half(FXAA_CONSOLE__EDGE_SHARPNESS); +/*--------------------------------------------------------------------------*/ +// (7) + half4 dir2_pos; + dir2_pos.xy = clamp(dir1_pos.xy / dirAbsMinTimes8, half(-2.0), half(2.0)); + dir1_pos.zw = pos.xy; + dir2_pos.zw = pos.xy; + half lumaMaxNeSe = max(lumaNe, lumaSe.w); +/*--------------------------------------------------------------------------*/ +// (8) + half4 temp1N; + temp1N.xy = dir1_pos.zw - dir1_pos.xy * rcpFrameOpt.zw; + temp1N = h4tex2Dlod(tex, half4(temp1N.xy, 0.0, 0.0)); + half lumaMax = max(lumaMaxNwSw, lumaMaxNeSe); + half lumaMin = min(lumaMinNwSw, lumaMinNeSe); +/*--------------------------------------------------------------------------*/ +// (9) + half4 rgby1; + rgby1.xy = dir1_pos.zw + dir1_pos.xy * rcpFrameOpt.zw; + rgby1 = h4tex2Dlod(tex, half4(rgby1.xy, 0.0, 0.0)); + rgby1 = (temp1N + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ +// (10) + half4 rgbyM = h4tex2Dlod(tex, half4(pos.xy, 0.0, 0.0)); + half lumaMaxM = max(lumaMax, rgbyM.w); + half lumaMinM = min(lumaMin, rgbyM.w); +/*--------------------------------------------------------------------------*/ +// (11) + half4 temp2N; + temp2N.xy = dir2_pos.zw - dir2_pos.xy * rcpFrameOpt.xy; + temp2N = h4tex2Dlod(tex, half4(temp2N.xy, 0.0, 0.0)); + half4 rgby2; + rgby2.xy = dir2_pos.zw + dir2_pos.xy * rcpFrameOpt.xy; + half lumaRangeM = (lumaMaxM - lumaMinM) / FXAA_CONSOLE__EDGE_THRESHOLD; +/*--------------------------------------------------------------------------*/ +// (12) + rgby2 = h4tex2Dlod(tex, half4(rgby2.xy, 0.0, 0.0)); + rgby2 = (temp2N + rgby2) * 0.5; +/*--------------------------------------------------------------------------*/ +// (13) + rgby2 = (rgby2 + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ +// (14) + bool twoTapLt = rgby2.w < lumaMin; + bool twoTapGt = rgby2.w > lumaMax; + bool earlyExit = lumaRangeM < lumaMax; + bool twoTap = twoTapLt || twoTapGt; +/*--------------------------------------------------------------------------*/ +// (15) + if(twoTap) rgby2 = rgby1; + if(earlyExit) rgby2 = rgbyM; +/*--------------------------------------------------------------------------*/ + return rgby2; } +/*==========================================================================*/ +#endif + + + +/*============================================================================ + + FXAA3 CONSOLE - PC PIXEL SHADER + +------------------------------------------------------------------------------ +Using a modified version of the PS3 version here to best target old hardware. +============================================================================*/ +#if (FXAA_PC_CONSOLE == 1) +/*--------------------------------------------------------------------------*/ +half4 FxaaPixelShader( + // {xy} = center of pixel + float2 pos, + // {xy__} = upper left of pixel + // {__zw} = lower right of pixel + float4 posPos, + // {rgb_} = color in linear or perceptual color space + // {___a} = alpha output is junk value + FxaaTex tex, + // This must be from a constant/uniform. + // {xy} = rcpFrame not used on PC version of FXAA Console + float2 rcpFrame, + // This must be from a constant/uniform. + // {x___} = 2.0/screenWidthInPixels + // {_y__} = 2.0/screenHeightInPixels + // {__z_} = 0.5/screenWidthInPixels + // {___w} = 0.5/screenHeightInPixels + float4 rcpFrameOpt +) { +/*--------------------------------------------------------------------------*/ + half4 dir; + dir.y = 0.0; + half4 lumaNe = FxaaTexTop(tex, posPos.zy); + lumaNe.w += half(1.0/384.0); + dir.x = -lumaNe.w; + dir.z = -lumaNe.w; +/*--------------------------------------------------------------------------*/ + half4 lumaSw = FxaaTexTop(tex, posPos.xw); + dir.x += lumaSw.w; + dir.z += lumaSw.w; +/*--------------------------------------------------------------------------*/ + half4 lumaNw = FxaaTexTop(tex, posPos.xy); + dir.x -= lumaNw.w; + dir.z += lumaNw.w; +/*--------------------------------------------------------------------------*/ + half4 lumaSe = FxaaTexTop(tex, posPos.zw); + dir.x += lumaSe.w; + dir.z -= lumaSe.w; +/*==========================================================================*/ + #if (FXAA_EARLY_EXIT == 1) + half4 rgbyM = FxaaTexTop(tex, pos.xy); +/*--------------------------------------------------------------------------*/ + half lumaMin = min(min(lumaNw.w, lumaSw.w), min(lumaNe.w, lumaSe.w)); + half lumaMax = max(max(lumaNw.w, lumaSw.w), max(lumaNe.w, lumaSe.w)); +/*--------------------------------------------------------------------------*/ + half lumaMinM = min(lumaMin, rgbyM.w); + half lumaMaxM = max(lumaMax, rgbyM.w); +/*--------------------------------------------------------------------------*/ + if((lumaMaxM - lumaMinM) < max(FXAA_CONSOLE__EDGE_THRESHOLD_MIN, lumaMax * FXAA_CONSOLE__EDGE_THRESHOLD)) + #if (FXAA_DISCARD == 1) + FxaaDiscard; + #else + return rgbyM; + #endif + #endif +/*==========================================================================*/ + half4 dir1_pos; + dir1_pos.xy = normalize(dir.xyz).xz; + half dirAbsMinTimesC = min(abs(dir1_pos.x), abs(dir1_pos.y)) * half(FXAA_CONSOLE__EDGE_SHARPNESS); +/*--------------------------------------------------------------------------*/ + half4 dir2_pos; + dir2_pos.xy = clamp(dir1_pos.xy / dirAbsMinTimesC, half(-2.0), half(2.0)); + dir1_pos.zw = pos.xy; + dir2_pos.zw = pos.xy; + half4 temp1N; + temp1N.xy = dir1_pos.zw - dir1_pos.xy * rcpFrameOpt.zw; +/*--------------------------------------------------------------------------*/ + temp1N = FxaaTexTop(tex, temp1N.xy); + half4 rgby1; + rgby1.xy = dir1_pos.zw + dir1_pos.xy * rcpFrameOpt.zw; +/*--------------------------------------------------------------------------*/ + rgby1 = FxaaTexTop(tex, rgby1.xy); + rgby1 = (temp1N + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ + half4 temp2N; + temp2N.xy = dir2_pos.zw - dir2_pos.xy * rcpFrameOpt.xy; + temp2N = FxaaTexTop(tex, temp2N.xy); +/*--------------------------------------------------------------------------*/ + half4 rgby2; + rgby2.xy = dir2_pos.zw + dir2_pos.xy * rcpFrameOpt.xy; + rgby2 = FxaaTexTop(tex, rgby2.xy); + rgby2 = (temp2N + rgby2) * 0.5; +/*--------------------------------------------------------------------------*/ + #if (FXAA_EARLY_EXIT == 0) + half lumaMin = min(min(lumaNw.w, lumaSw.w), min(lumaNe.w, lumaSe.w)); + half lumaMax = max(max(lumaNw.w, lumaSw.w), max(lumaNe.w, lumaSe.w)); + #endif + rgby2 = (rgby2 + rgby1) * 0.5; +/*--------------------------------------------------------------------------*/ + bool twoTapLt = rgby2.w < lumaMin; + bool twoTapGt = rgby2.w > lumaMax; +/*--------------------------------------------------------------------------*/ + if(twoTapLt || twoTapGt) rgby2 = rgby1; +/*--------------------------------------------------------------------------*/ + return rgby2; } +/*==========================================================================*/ +#endif + + + +/*============================================================================ + + FXAA3 QUALITY - PC + +============================================================================*/ +#if (FXAA_PC == 1) +/*--------------------------------------------------------------------------*/ +float4 FxaaPixelShader( + // {xy} = center of pixel + float2 pos, + // {xyzw} = not used on FXAA3 Quality + float4 posPos, + // {rgb_} = color in linear or perceptual color space + // {___a} = luma in perceptual color space (not linear) + FxaaTex tex, + // This must be from a constant/uniform. + // {x_} = 1.0/screenWidthInPixels + // {_y} = 1.0/screenHeightInPixels + float2 rcpFrame, + // {xyzw} = not used on FXAA3 Quality + float4 rcpFrameOpt +) { +/*--------------------------------------------------------------------------*/ + #if (FXAA_GATHER4_ALPHA == 1) + float4 luma4A = FxaaTexOffAlpha4(tex, pos.xy, FxaaInt2(-1, -1), rcpFrame.xy); + #if (FXAA_DISCARD == 0) + float4 rgbyM = FxaaTexTop(tex, pos.xy); + #endif + float4 luma4B = FxaaTexAlpha4(tex, pos.xy, rcpFrame.xy); + float lumaNE = FxaaTexOff(tex, pos.xy, FxaaInt2(1, -1), rcpFrame.xy).w; + float lumaSW = FxaaTexOff(tex, pos.xy, FxaaInt2(-1, 1), rcpFrame.xy).w; + float lumaNW = luma4A.w; + float lumaN = luma4A.z; + float lumaW = luma4A.x; + float lumaM = luma4A.y; + float lumaE = luma4B.z; + float lumaS = luma4B.x; + float lumaSE = luma4B.y; + #else + float lumaN = FxaaTexOff(tex, pos.xy, FxaaInt2(0, -1), rcpFrame.xy).w; + float lumaW = FxaaTexOff(tex, pos.xy, FxaaInt2(-1, 0), rcpFrame.xy).w; + float4 rgbyM = FxaaTexTop(tex, pos.xy); + float lumaE = FxaaTexOff(tex, pos.xy, FxaaInt2( 1, 0), rcpFrame.xy).w; + float lumaS = FxaaTexOff(tex, pos.xy, FxaaInt2( 0, 1), rcpFrame.xy).w; + float lumaM = rgbyM.w; + #endif +/*--------------------------------------------------------------------------*/ + float rangeMin = min(lumaM, min(min(lumaN, lumaW), min(lumaS, lumaE))); + float rangeMax = max(lumaM, max(max(lumaN, lumaW), max(lumaS, lumaE))); + float range = rangeMax - rangeMin; +/*--------------------------------------------------------------------------*/ + if(range < max(FXAA_QUALITY__EDGE_THRESHOLD_MIN, rangeMax * FXAA_QUALITY__EDGE_THRESHOLD)) + #if (FXAA_DISCARD == 1) + FxaaDiscard; + #else + return rgbyM; + #endif +/*--------------------------------------------------------------------------*/ + #if (FXAA_GATHER4_ALPHA == 0) + float lumaNW = FxaaTexOff(tex, pos.xy, FxaaInt2(-1,-1), rcpFrame.xy).w; + float lumaNE = FxaaTexOff(tex, pos.xy, FxaaInt2( 1,-1), rcpFrame.xy).w; + float lumaSW = FxaaTexOff(tex, pos.xy, FxaaInt2(-1, 1), rcpFrame.xy).w; + float lumaSE = FxaaTexOff(tex, pos.xy, FxaaInt2( 1, 1), rcpFrame.xy).w; + #endif +/*--------------------------------------------------------------------------*/ + #define FXAA_QUALITY__SUBPIX_TRIM_SCALE (1.0/(1.0 - FXAA_QUALITY__SUBPIX_TRIM)) +/*--------------------------------------------------------------------------*/ + float lumaL = (lumaN + lumaW + lumaE + lumaS) * 0.25; + float rangeL = abs(lumaL - lumaM); + float blendL = FxaaSat((rangeL / range) - FXAA_QUALITY__SUBPIX_TRIM) * FXAA_QUALITY__SUBPIX_TRIM_SCALE; + blendL = min(FXAA_QUALITY__SUBPIX_CAP, blendL); +/*--------------------------------------------------------------------------*/ + float edgeVert = + abs(lumaNW + (-2.0 * lumaN) + lumaNE) + + 2.0 * abs(lumaW + (-2.0 * lumaM) + lumaE ) + + abs(lumaSW + (-2.0 * lumaS) + lumaSE); + float edgeHorz = + abs(lumaNW + (-2.0 * lumaW) + lumaSW) + + 2.0 * abs(lumaN + (-2.0 * lumaM) + lumaS ) + + abs(lumaNE + (-2.0 * lumaE) + lumaSE); + bool horzSpan = edgeHorz >= edgeVert; +/*--------------------------------------------------------------------------*/ + float lengthSign = horzSpan ? -rcpFrame.y : -rcpFrame.x; + if(!horzSpan) lumaN = lumaW; + if(!horzSpan) lumaS = lumaE; + float gradientN = abs(lumaN - lumaM); + float gradientS = abs(lumaS - lumaM); + lumaN = (lumaN + lumaM) * 0.5; + lumaS = (lumaS + lumaM) * 0.5; +/*--------------------------------------------------------------------------*/ + bool pairN = gradientN >= gradientS; + if(!pairN) lumaN = lumaS; + if(!pairN) gradientN = gradientS; + if(!pairN) lengthSign *= -1.0; + float2 posN; + posN.x = pos.x + (horzSpan ? 0.0 : lengthSign * 0.5); + posN.y = pos.y + (horzSpan ? lengthSign * 0.5 : 0.0); +/*--------------------------------------------------------------------------*/ + #define FXAA_SEARCH_STEPS 6 + #define FXAA_SEARCH_THRESHOLD (1.0/4.0) +/*--------------------------------------------------------------------------*/ + gradientN *= FXAA_SEARCH_THRESHOLD; +/*--------------------------------------------------------------------------*/ + float2 posP = posN; + float2 offNP = horzSpan ? + FxaaFloat2(rcpFrame.x, 0.0) : + FxaaFloat2(0.0, rcpFrame.y); + float lumaEndN; + float lumaEndP; + bool doneN = false; + bool doneP = false; + posN += offNP * (-1.5); + posP += offNP * ( 1.5); + for(int i = 0; i < FXAA_SEARCH_STEPS; i++) { + lumaEndN = FxaaTexTop(tex, posN.xy).w; + lumaEndP = FxaaTexTop(tex, posP.xy).w; + bool doneN2 = abs(lumaEndN - lumaN) >= gradientN; + bool doneP2 = abs(lumaEndP - lumaN) >= gradientN; + if(doneN2 && !doneN) posN += offNP; + if(doneP2 && !doneP) posP -= offNP; + if(doneN2 && doneP2) break; + doneN = doneN2; + doneP = doneP2; + if(!doneN) posN -= offNP * 2.0; + if(!doneP) posP += offNP * 2.0; } +/*--------------------------------------------------------------------------*/ + float dstN = horzSpan ? pos.x - posN.x : pos.y - posN.y; + float dstP = horzSpan ? posP.x - pos.x : posP.y - pos.y; +/*--------------------------------------------------------------------------*/ + bool directionN = dstN < dstP; + lumaEndN = directionN ? lumaEndN : lumaEndP; +/*--------------------------------------------------------------------------*/ + if(((lumaM - lumaN) < 0.0) == ((lumaEndN - lumaN) < 0.0)) + lengthSign = 0.0; +/*--------------------------------------------------------------------------*/ + float spanLength = (dstP + dstN); + dstN = directionN ? dstN : dstP; + float subPixelOffset = 0.5 + (dstN * (-1.0/spanLength)); + subPixelOffset += blendL * (1.0/8.0); + subPixelOffset *= lengthSign; + float3 rgbF = FxaaTexTop(tex, FxaaFloat2( + pos.x + (horzSpan ? 0.0 : subPixelOffset), + pos.y + (horzSpan ? subPixelOffset : 0.0))).xyz; +/*--------------------------------------------------------------------------*/ + #if (FXAA_LINEAR == 1) + lumaL *= lumaL; + #endif + float lumaF = dot(rgbF, float3(0.299, 0.587, 0.114)) + (1.0/(65536.0*256.0)); + float lumaB = FxaaLerp(lumaF, lumaL, blendL); + float scale = min(4.0, lumaB/lumaF); + rgbF *= scale; + return float4(rgbF, lumaM); } +/*==========================================================================*/ +#endif + + + |