1 /* 2 * Copyright (C) 2011 University of Szeged 3 * Copyright (C) 2011 Zoltan Herczeg 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef FELightingNeon_h 28 #define FELightingNeon_h 29 30 #include <wtf/Platform.h> 31 32 #if CPU(ARM_NEON) && COMPILER(GCC) 33 34 namespace WebCore { 35 36 // Otherwise: Distant Light. 37 #define FLAG_POINT_LIGHT 0x01 38 #define FLAG_SPOT_LIGHT 0x02 39 #define FLAG_CONE_EXPONENT_IS_1 0x04 40 41 // Otherwise: Diffuse light. 42 #define FLAG_SPECULAR_LIGHT 0x10 43 #define FLAG_DIFFUSE_CONST_IS_1 0x20 44 #define FLAG_SPECULAR_EXPONENT_IS_1 0x40 45 46 // Must be aligned to 16 bytes. 47 struct FELightingFloatArgumentsForNeon { 48 float surfaceScale; 49 float minusSurfaceScaleDividedByFour; 50 float diffuseConstant; 51 float padding1; 52 53 float coneCutOffLimit; 54 float coneFullLight; 55 float coneCutOffRange; 56 float constOne; 57 58 float lightX; 59 float lightY; 60 float lightZ; 61 float padding2; 62 63 float directionX; 64 float directionY; 65 float directionZ; 66 float padding3; 67 68 float colorRed; 69 float colorGreen; 70 float colorBlue; 71 float padding4; 72 }; 73 74 struct FELightingPaintingDataForNeon { 75 unsigned char* pixels; 76 int widthDecreasedByTwo; 77 int heightDecreasedByTwo; 78 // Combination of FLAG constants above. 79 int flags; 80 int specularExponent; 81 int coneExponent; 82 FELightingFloatArgumentsForNeon* floatArguments; 83 short* paintingConstants; 84 }; 85 86 short* feLightingConstantsForNeon(); 87 88 extern "C" { 89 void neonDrawLighting(FELightingPaintingDataForNeon*); 90 } 91 92 } // namespace WebCore 93 94 #endif // CPU(ARM_NEON) && COMPILER(GCC) 95 96 #endif // FELightingNeon_h 97