X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=plugins%2Fgpu_senquack%2Fgpu_inner_light.h;fp=plugins%2Fgpu_senquack%2Fgpu_inner_light.h;h=b5d89338a3946f09b1e5bc8a753a014233aa2172;hb=0bfe8d59b9150b2662c3ca68f950b272344cb9a4;hp=0000000000000000000000000000000000000000;hpb=fcaa8d2263c8da53bbe86c482921e1a715bf59b3;p=pcsx_rearmed.git diff --git a/plugins/gpu_senquack/gpu_inner_light.h b/plugins/gpu_senquack/gpu_inner_light.h new file mode 100644 index 00000000..b5d89338 --- /dev/null +++ b/plugins/gpu_senquack/gpu_inner_light.h @@ -0,0 +1,271 @@ +/*************************************************************************** +* Copyright (C) 2016 PCSX4ALL Team * +* Copyright (C) 2010 Unai * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +* This program is distributed in the hope that it will be useful, * +* but WITHOUT ANY WARRANTY; without even the implied warranty of * +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * +* GNU General Public License for more details. * +* * +* You should have received a copy of the GNU General Public License * +* along with this program; if not, write to the * +* Free Software Foundation, Inc., * +* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * +***************************************************************************/ + +#ifndef _OP_LIGHT_H_ +#define _OP_LIGHT_H_ + +// GPU color operations for lighting calculations + +static void SetupLightLUT() +{ + // 1024-entry lookup table that modulates 5-bit texture + 5-bit light value. + // A light value of 15 does not modify the incoming texture color. + // LightLUT[32*32] array is initialized to following values: + // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + // 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, + // 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, + // 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, + // 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, + // 0, 0, 0, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 9, 9, 9,10,10,10,11,11, + // 0, 0, 0, 1, 1, 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 9, 9,10,10,10,11,11,12,12,13,13, + // 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15, + // 0, 0, 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9,10,10,11,11,12,12,13,14,14,15,15,16,16,17, + // 0, 0, 1, 1, 2, 3, 3, 4, 5, 5, 6, 6, 7, 8, 8, 9,10,10,11,11,12,13,13,14,15,15,16,16,17,18,18,19, + // 0, 0, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9,10,11,11,12,13,13,14,15,15,16,17,17,18,19,19,20,21, + // 0, 0, 1, 2, 3, 3, 4, 5, 6, 6, 7, 8, 9, 9,10,11,12,12,13,14,15,15,16,17,18,18,19,20,21,21,22,23, + // 0, 0, 1, 2, 3, 4, 4, 5, 6, 7, 8, 8, 9,10,11,12,13,13,14,15,16,17,17,18,19,20,21,21,22,23,24,25, + // 0, 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,15,16,17,18,19,20,21,21,22,23,24,25,26,27, + // 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29, + // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31, + // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,31, + // 0, 1, 2, 3, 4, 5, 6, 7, 9,10,11,12,13,14,15,16,18,19,20,21,22,23,24,25,27,28,29,30,31,31,31,31, + // 0, 1, 2, 3, 4, 5, 7, 8, 9,10,11,13,14,15,16,17,19,20,21,22,23,24,26,27,28,29,30,31,31,31,31,31, + // 0, 1, 2, 3, 5, 6, 7, 8,10,11,12,13,15,16,17,18,20,21,22,23,25,26,27,28,30,31,31,31,31,31,31,31, + // 0, 1, 2, 3, 5, 6, 7, 9,10,11,13,14,15,17,18,19,21,22,23,24,26,27,28,30,31,31,31,31,31,31,31,31, + // 0, 1, 2, 4, 5, 6, 8, 9,11,12,13,15,16,17,19,20,22,23,24,26,27,28,30,31,31,31,31,31,31,31,31,31, + // 0, 1, 2, 4, 5, 7, 8,10,11,12,14,15,17,18,20,21,23,24,25,27,28,30,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 4, 6, 7, 9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 4, 6, 7, 9,10,12,14,15,17,18,20,21,23,25,26,28,29,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 4, 6, 8, 9,11,13,14,16,17,19,21,22,24,26,27,29,30,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 5, 6, 8,10,11,13,15,16,18,20,21,23,25,27,28,30,31,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 5, 7, 8,10,12,14,15,17,19,21,22,24,26,28,29,31,31,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 5, 7, 9,10,12,14,16,18,19,21,23,25,27,29,30,31,31,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 5, 7, 9,11,13,15,16,18,20,22,24,26,28,30,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31, + // 0, 1, 3, 5, 7, 9,11,13,15,17,19,21,23,25,27,29,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 + + for (int j=0; j < 32; ++j) { + for (int i=0; i < 32; ++i) { + int val = i * j / 16; + if (val > 31) val = 31; + gpu_senquack.LightLUT[(j*32) + i] = val; + } + } +} + + +//////////////////////////////////////////////////////////////////////////////// +// Create packed Gouraud fixed-pt 8.3:8.3:8.2 rgb triplet +// +// INPUT: +// 'r','g','b' are 8.10 fixed-pt color components (r shown here) +// 'r' input: --------------rrrrrrrrXXXXXXXXXX +// ^ bit 31 +// RETURNS: +// u32 output: rrrrrrrrXXXggggggggXXXbbbbbbbbXX +// ^ bit 31 +// Where 'r,g,b' are integer bits of colors, 'X' fixed-pt, and '-' don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE u32 gpuPackGouraudCol(u32 r, u32 g, u32 b) +{ + return ((u32)(b>> 8)&(0x03ff )) + | ((u32)(g<< 3)&(0x07ff<<10)) + | ((u32)(r<<14)&(0x07ff<<21)); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Create packed increment for Gouraud fixed-pt 8.3:8.3:8.2 rgb triplet +// +// INPUT: +// Sign-extended 8.10 fixed-pt r,g,b color increment values (only dr is shown) +// 'dr' input: ssssssssssssssrrrrrrrrXXXXXXXXXX +// ^ bit 31 +// RETURNS: +// u32 output: rrrrrrrrXXXggggggggXXXbbbbbbbbXX +// ^ bit 31 +// Where 'r,g,b' are integer bits of colors, 'X' fixed-pt, and 's' sign bits +// +// NOTE: The correctness of this code/method has not been fully verified, +// having been merely factored out from original code in +// poly-drawing functions. Feel free to check/improve it -senquack +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE u32 gpuPackGouraudColInc(s32 dr, s32 dg, s32 db) +{ + u32 dr_tmp = (u32)(dr << 14)&(0xffffffff<<21); if (dr < 0) dr_tmp += 1<<21; + u32 dg_tmp = (u32)(dg << 3)&(0xffffffff<<10); if (dg < 0) dg_tmp += 1<<10; + u32 db_tmp = (u32)(db >> 8)&(0xffffffff ); if (db < 0) db_tmp += 1<< 0; + return db_tmp + dg_tmp + dr_tmp; +} + + +//////////////////////////////////////////////////////////////////////////////// +// Extract bgr555 color from Gouraud u32 fixed-pt 8.3:8.3:8.2 rgb triplet +// +// INPUT: +// 'gCol' input: rrrrrrrrXXXggggggggXXXbbbbbbbbXX +// ^ bit 31 +// RETURNS: +// u16 output: 0bbbbbgggggrrrrr +// ^ bit 16 +// Where 'r,g,b' are integer bits of colors, 'X' fixed-pt, and '0' zero +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE uint_fast16_t gpuLightingRGBGeneric(u32 gCol) +{ + return ((gCol<< 5)&0x7C00) | + ((gCol>>11)&0x03E0) | + (gCol>>27); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Convert packed Gouraud u32 fixed-pt 8.3:8.3:8.2 rgb triplet in 'gCol' +// to padded u32 5.4:5.4:5.4 bgr fixed-pt triplet, suitable for use +// with HQ 24-bit lighting/quantization. +// +// INPUT: +// 'gCol' input: rrrrrrrrXXXggggggggXXXbbbbbbbbXX +// ^ bit 31 +// RETURNS: +// u32 output: 000bbbbbXXXX0gggggXXXX0rrrrrXXXX +// ^ bit 31 +// Where 'X' are fixed-pt bits, '0' zero-padding, and '-' is don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE u32 gpuLightingRGB24(u32 gCol) +{ + return ((gCol<<19) & (0x1FF<<20)) | + ((gCol>> 2) & (0x1FF<<10)) | + (gCol>>23); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Apply fast (low-precision) 5-bit lighting to bgr555 texture color: +// +// INPUT: +// 'r5','g5','b5' are unsigned 5-bit color values, value of 15 +// is midpoint that doesn't modify that component of texture +// 'uSrc' input: -bbbbbgggggrrrrr +// ^ bit 16 +// RETURNS: +// u16 output: 0bbbbbgggggrrrrr +// Where 'X' are fixed-pt bits, '0' is zero-padding, and '-' is don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE uint_fast16_t gpuLightingTXTGeneric(uint_fast16_t uSrc, u8 r5, u8 g5, u8 b5) +{ + return (gpu_senquack.LightLUT[((uSrc&0x7C00)>>5) | b5] << 10) | + (gpu_senquack.LightLUT[ (uSrc&0x03E0) | g5] << 5) | + (gpu_senquack.LightLUT[((uSrc&0x001F)<<5) | r5] ); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Apply fast (low-precision) 5-bit Gouraud lighting to bgr555 texture color: +// +// INPUT: +// 'gCol' is a packed Gouraud u32 fixed-pt 8.3:8.3:8.2 rgb triplet, value of +// 15.0 is midpoint that does not modify color of texture +// gCol input : rrrrrXXXXXXgggggXXXXXXbbbbbXXXXX +// ^ bit 31 +// 'uSrc' input: -bbbbbgggggrrrrr +// ^ bit 16 +// RETURNS: +// u16 output: 0bbbbbgggggrrrrr +// Where 'X' are fixed-pt bits, '0' is zero-padding, and '-' is don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE uint_fast16_t gpuLightingTXTGouraudGeneric(uint_fast16_t uSrc, u32 gCol) +{ + return (gpu_senquack.LightLUT[((uSrc&0x7C00)>>5) | ((gCol>> 5)&0x1F)]<<10) | + (gpu_senquack.LightLUT[ (uSrc&0x03E0) | ((gCol>>16)&0x1F)]<< 5) | + (gpu_senquack.LightLUT[((uSrc&0x001F)<<5) | (gCol>>27) ] ); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Apply high-precision 8-bit lighting to bgr555 texture color, +// returning a padded u32 5.4:5.4:5.4 bgr fixed-pt triplet +// suitable for use with HQ 24-bit lighting/quantization. +// +// INPUT: +// 'r8','g8','b8' are unsigned 8-bit color component values, value of +// 127 is midpoint that doesn't modify that component of texture +// +// uSrc input: -bbbbbgggggrrrrr +// ^ bit 16 +// RETURNS: +// u32 output: 000bbbbbXXXX0gggggXXXX0rrrrrXXXX +// ^ bit 31 +// Where 'X' are fixed-pt bits, '0' is zero-padding, and '-' is don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE u32 gpuLightingTXT24(uint_fast16_t uSrc, u8 r8, u8 g8, u8 b8) +{ + uint_fast16_t r1 = uSrc&0x001F; + uint_fast16_t g1 = uSrc&0x03E0; + uint_fast16_t b1 = uSrc&0x7C00; + + uint_fast16_t r2 = r8; + uint_fast16_t g2 = g8; + uint_fast16_t b2 = b8; + + u32 r3 = r1 * r2; if (r3 & 0xFFFFF000) r3 = ~0xFFFFF000; + u32 g3 = g1 * g2; if (g3 & 0xFFFE0000) g3 = ~0xFFFE0000; + u32 b3 = b1 * b2; if (b3 & 0xFFC00000) b3 = ~0xFFC00000; + + return ((r3>> 3) ) | + ((g3>> 8)<<10) | + ((b3>>13)<<20); +} + + +//////////////////////////////////////////////////////////////////////////////// +// Apply high-precision 8-bit lighting to bgr555 texture color in 'uSrc', +// returning a padded u32 5.4:5.4:5.4 bgr fixed-pt triplet +// suitable for use with HQ 24-bit lighting/quantization. +// +// INPUT: +// 'uSrc' input: -bbbbbgggggrrrrr +// ^ bit 16 +// 'gCol' input: rrrrrrrrXXXggggggggXXXbbbbbbbbXX +// ^ bit 31 +// RETURNS: +// u32 output: 000bbbbbXXXX0gggggXXXX0rrrrrXXXX +// ^ bit 31 +// Where 'X' are fixed-pt bits, '0' is zero-padding, and '-' is don't care +//////////////////////////////////////////////////////////////////////////////// +GPU_INLINE u32 gpuLightingTXT24Gouraud(uint_fast16_t uSrc, u32 gCol) +{ + uint_fast16_t r1 = uSrc&0x001F; + uint_fast16_t g1 = uSrc&0x03E0; + uint_fast16_t b1 = uSrc&0x7C00; + + uint_fast16_t r2 = (gCol>>24) & 0xFF; + uint_fast16_t g2 = (gCol>>13) & 0xFF; + uint_fast16_t b2 = (gCol>> 2) & 0xFF; + + u32 r3 = r1 * r2; if (r3 & 0xFFFFF000) r3 = ~0xFFFFF000; + u32 g3 = g1 * g2; if (g3 & 0xFFFE0000) g3 = ~0xFFFE0000; + u32 b3 = b1 * b2; if (b3 & 0xFFC00000) b3 = ~0xFFC00000; + + return ((r3>> 3) ) | + ((g3>> 8)<<10) | + ((b3>>13)<<20); +} + +#endif //_OP_LIGHT_H_