/***************************************************************************
-* Copyright (C) 2010 PCSX4ALL Team *
+* Copyright (C) 2016 PCSX4ALL Team *
* Copyright (C) 2010 Unai *
* *
* This program is free software; you can redistribute it and/or modify *
// GPU color operations for lighting calculations
-#ifdef __arm__
-#define gpuLightingRGB(uSrc,lCol) \
-{ \
- u32 cb,cg; \
- asm ("and %[cb], %[lCol], #0x7C00/32 " : [cb] "=r" (cb) : [lCol] "r" (lCol) ); \
- asm ("and %[cg], %[lCol], #0x03E0*2048 " : [cg] "=r" (cg) : [lCol] "r" (lCol) ); \
- asm ("mov %[res], %[lCol], lsr #27 " : [res] "=r" (uSrc) : [lCol] "r" (lCol) ); \
- asm ("orr %[res], %[res], %[cb], lsl #5 " : [res] "=r" (uSrc) : "0" (uSrc), [cb] "r" (cb) ); \
- asm ("orr %[res], %[res], %[cg], lsr #11 " : [res] "=r" (uSrc) : "0" (uSrc), [cg] "r" (cg) ); \
+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_unai.LightLUT[(j*32) + i] = val;
+ }
+ }
}
-#else
-#define gpuLightingRGB(uSrc,lCol) uSrc=((lCol<<5)&0x7C00) | ((lCol>>11)&0x3E0) | (lCol>>27)
-#endif
-INLINE void gpuLightingTXT(u16 &uSrc, u32 &lCol)
+
+////////////////////////////////////////////////////////////////////////////////
+// Create packed Gouraud fixed-pt 8.8 rgb triplet
+//
+// INPUT:
+// 'r','g','b' are 8.10 fixed-pt color components (r shown here)
+// 'r' input: --------------rrrrrrrrXXXXXXXXXX
+// ^ bit 31
+// RETURNS:
+// gcol_t output: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ bit 16
+// Where 'r,g,b' are integer bits of colors, 'X' fixed-pt, and '-' don't care
+////////////////////////////////////////////////////////////////////////////////
+GPU_INLINE gcol_t gpuPackGouraudCol(u32 r, u32 g, u32 b)
{
- // Pixelops Table
- static const u8 _gpuLitT[32*32] = {
- 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
+ return (gcol_t){
+ (u16)(r >> 2),
+ (u16)(g >> 2),
+ (u16)(b >> 2),
};
- uSrc = (_gpuLitT[((uSrc&0x7C00)>>5)|((lCol>>5)&0x1f)]<<10)|(_gpuLitT[(uSrc&0x03E0)|((lCol>>16)&0x1f)]<<5)|(_gpuLitT[((uSrc&0x001F)<<5)|(lCol>>27)]);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Create packed increment for Gouraud fixed-pt 8.8 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:
+// gcol_t output: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ bit 16
+// 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 gcol_t gpuPackGouraudColInc(s32 dr, s32 dg, s32 db)
+{
+ return (gcol_t){
+ (u16)((dr >> 2) + (dr < 0)),
+ (u16)((dg >> 2) + (dg < 0)),
+ (u16)((db >> 2) + (db < 0)),
+ };
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Extract bgr555 color from Gouraud u32 fixed-pt 8.8 rgb triplet
+//
+// INPUT:
+// 'gCol' input: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ bit 16
+// 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 gpuLightingRGB(gcol_t gCol)
+{
+ return (gCol.c.r >> 11) |
+ ((gCol.c.g >> 6) & 0x3e0) |
+ ((gCol.c.b >> 1) & 0x7c00);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Convert packed Gouraud u32 fixed-pt 8.8 rgb triplet in 'gCol'
+// to padded u32 5.4 bgr fixed-pt triplet, suitable for use
+// with HQ 24-bit lighting/quantization.
+//
+// INPUT:
+// 'gCol' input: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ bit 16
+// RETURNS:
+// u32 output: 000bbbbbXXXX0gggggXXXX0rrrrrXXXX
+// ^ bit 31
+// Where 'X' are fixed-pt bits, '0' zero-padding, and '-' is don't care
+////////////////////////////////////////////////////////////////////////////////
+GPU_INLINE u32 gpuLightingRGB24(gcol_t gCol)
+{
+ return (gCol.c.r >> 7)
+ | ((gCol.c.g >> 7) << 10)
+ | ((gCol.c.b >> 7) << 20);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// 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_unai.LightLUT[((uSrc&0x7C00)>>5) | b5] << 10) |
+ (gpu_unai.LightLUT[ (uSrc&0x03E0) | g5] << 5) |
+ (gpu_unai.LightLUT[((uSrc&0x001F)<<5) | r5] ) |
+ (uSrc & 0x8000);
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Apply fast (low-precision) 5-bit Gouraud lighting to bgr555 texture color:
+//
+// INPUT:
+// 'gCol' is a Gouraud fixed-pt 8.8 rgb triplet
+// 'gCol' input: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ bit 16
+// '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 gpuLightingTXTGouraud(uint_fast16_t uSrc, gcol_t gCol)
+{
+ return (gpu_unai.LightLUT[((uSrc&0x7C00)>>5) | (gCol.c.b >> 11)] << 10) |
+ (gpu_unai.LightLUT[ (uSrc&0x03E0) | (gCol.c.g >> 11)] << 5) |
+ (gpu_unai.LightLUT[((uSrc&0x001F)<<5) | (gCol.c.r >> 11)]) |
+ (uSrc & 0x8000);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// 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: ccccccccXXXXXXXX for c in [r, g, b]
+// ^ 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 gpuLightingTXT24Gouraud(uint_fast16_t uSrc, gcol_t gCol)
+{
+ uint_fast16_t r1 = uSrc&0x001F;
+ uint_fast16_t g1 = uSrc&0x03E0;
+ uint_fast16_t b1 = uSrc&0x7C00;
+
+ uint_fast16_t r2 = gCol.c.r >> 8;
+ uint_fast16_t g2 = gCol.c.g >> 8;
+ uint_fast16_t b2 = gCol.c.b >> 8;
+
+ 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_
notaz.gp2x.de / pcsx_rearmed.git / blobdiff