Commit aac31071 authored by jdgleaver's avatar jdgleaver
Browse files

Backport colour operations from Snes9x 1.60

parent 8b76b530
DEBUG=0
LAGFIX=1
DEBUG = 0
LAGFIX = 1
USE_OLD_COLOUR_OPS = 0
TARGET_NAME = snes9x2002
ifeq ($(platform),)
......@@ -219,10 +220,9 @@ else ifeq ($(platform), gcw0)
AR = /opt/gcw0-toolchain/usr/bin/mipsel-linux-ar
fpic := -fPIC
SHARED := -shared -Wl,--version-script=libretro/link.T -Wl,--no-undefined
DEFINES += -DFRAME_SKIP
CFLAGS += -std=c99 -ffast-math -march=mips32 -mtune=mips32r2 -mhard-float
CFLAGS += -std=c99 -fomit-frame-pointer -ffast-math -march=mips32 -mtune=mips32r2 -mhard-float
CFLAGS += -fno-builtin -fno-exceptions
CFLAGS += -DPATH_MAX=256
CFLAGS += -DPATH_MAX=256 -DFAST_LSB_WORD_ACCESS
# Windows MSVC 2010 x86
else ifeq ($(platform), windows_msvc2010_x86)
......
......@@ -124,4 +124,8 @@ DEFINES += -DLAGFIX
endif
endif
ifeq ($(USE_OLD_COLOUR_OPS),1)
FLAGS += -DUSE_OLD_COLOUR_OPS
endif
COMMON_DEFINES += $(CODE_DEFINES) $(WARNINGS_DEFINES) $(fpic)
......@@ -362,6 +362,8 @@ bool8_32 S9xGraphicsInit(void)
DrawHiResClippedTilePtr = DrawHiResClippedTile16;
S9xFixColourBrightness();
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
if (!(GFX.X2 = (uint16*) malloc(sizeof(uint16) * 0x10000)))
return (FALSE);
......@@ -476,6 +478,10 @@ bool8_32 S9xGraphicsInit(void)
}
}
#endif
#else
if (!(GFX.ZERO = (uint16_t*) malloc(sizeof(uint16_t) * 0x10000)))
return false;
#endif
// Build a lookup table that if the top bit of the color value is zero
// then the value is zero, otherwise its just the value.
......@@ -514,6 +520,8 @@ bool8_32 S9xGraphicsInit(void)
void S9xGraphicsDeinit(void)
{
// Free any memory allocated in S9xGraphicsInit
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
if (GFX.X2)
{
free((char*) GFX.X2);
......@@ -524,6 +532,7 @@ void S9xGraphicsDeinit(void)
free((char*) GFX.ZERO_OR_X2);
GFX.ZERO_OR_X2 = NULL;
}
#endif
if (GFX.ZERO)
{
free((char*) GFX.ZERO);
......
......@@ -64,8 +64,11 @@ typedef struct
// Setup in call to S9xGraphicsInit()
int Delta;
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
uint16* X2;
uint16* ZERO_OR_X2;
#endif
uint16* ZERO;
uint8* S;
uint8* DB;
......@@ -202,6 +205,8 @@ extern uint8 mul_brightness [16][32];
#define SUB_SCREEN_DEPTH 0
#define MAIN_SCREEN_DEPTH 32
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
#if defined(OLD_COLOUR_BLENDING)
#define COLOR_ADD(C1, C2) \
GFX.X2 [((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
......@@ -214,12 +219,34 @@ GFX.X2 [((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
((C1) & (C2) & RGB_LOW_BITS_MASK)] | \
(((C1) ^ (C2)) & RGB_LOW_BITS_MASK))
#endif
#else
static INLINE uint16_t COLOR_ADD(uint16_t C1, uint16_t C2)
{
const int RED_MASK = 0x1F << RED_SHIFT_BITS;
const int GREEN_MASK = 0x1F << GREEN_SHIFT_BITS;
const int BLUE_MASK = 0x1F;
int rb = (C1 & (RED_MASK | BLUE_MASK)) + (C2 & (RED_MASK | BLUE_MASK));
int rbcarry = rb & ((0x20 << RED_SHIFT_BITS) | (0x20 << 0));
int g = (C1 & (GREEN_MASK)) + (C2 & (GREEN_MASK));
int rgbsaturate = (((g & (0x20 << GREEN_SHIFT_BITS)) | rbcarry) >> 5) * 0x1f;
uint16_t retval = (rb & (RED_MASK | BLUE_MASK)) | (g & GREEN_MASK) | rgbsaturate;
#if GREEN_SHIFT_BITS == 6
retval |= (retval & 0x0400) >> 5;
#endif
return retval;
}
#endif
#define COLOR_ADD1_2(C1, C2) \
(((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + \
((C1) & (C2) & RGB_LOW_BITS_MASK) | ALPHA_BITS_MASK)
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
#if defined(OLD_COLOUR_BLENDING)
#define COLOR_SUB(C1, C2) \
GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \
......@@ -230,6 +257,24 @@ GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \
((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1] + \
((C1) & RGB_LOW_BITS_MASK) - ((C2) & RGB_LOW_BITS_MASK))
#endif
#else
static INLINE uint16_t COLOR_SUB(uint16_t C1, uint16_t C2)
{
int rb1 = (C1 & (THIRD_COLOR_MASK | FIRST_COLOR_MASK)) | ((0x20 << 0) | (0x20 << RED_SHIFT_BITS));
int rb2 = C2 & (THIRD_COLOR_MASK | FIRST_COLOR_MASK);
int rb = rb1 - rb2;
int rbcarry = rb & ((0x20 << RED_SHIFT_BITS) | (0x20 << 0));
int g = ((C1 & (SECOND_COLOR_MASK)) | (0x20 << GREEN_SHIFT_BITS)) - (C2 & (SECOND_COLOR_MASK));
int rgbsaturate = (((g & (0x20 << GREEN_SHIFT_BITS)) | rbcarry) >> 5) * 0x1f;
uint16_t retval = ((rb & (THIRD_COLOR_MASK | FIRST_COLOR_MASK)) | (g & SECOND_COLOR_MASK)) & rgbsaturate;
#if GREEN_SHIFT_BITS == 6
retval |= (retval & 0x0400) >> 5;
#endif
return retval;
}
#endif
#define COLOR_SUB1_2(C1, C2) \
GFX.ZERO [(((C1) | RGB_HI_BITS_MASKx2) - \
......
......@@ -249,6 +249,7 @@ void DrawHiResTile16(uint32 Tile, uint32 Offset,
bool8_32 S9xGraphicsInit()
{
uint32 r, g, b;
uint32 PixelOdd = 1;
uint32 PixelEven = 2;
......@@ -366,6 +367,8 @@ bool8_32 S9xGraphicsInit()
DrawHiResClippedTilePtr = DrawHiResClippedTile16;
S9xFixColourBrightness();
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
if (!(GFX.X2 = (uint16*) malloc(sizeof(uint16) * 0x10000)))
return (FALSE);
......@@ -384,7 +387,6 @@ bool8_32 S9xGraphicsInit()
}
return (FALSE);
}
uint32 r, g, b;
// Build a lookup table that multiplies a packed RGB value by 2 with
// saturation.
......@@ -481,6 +483,10 @@ bool8_32 S9xGraphicsInit()
}
}
#endif
#else
if (!(GFX.ZERO = (uint16_t*) malloc(sizeof(uint16_t) * 0x10000)))
return false;
#endif
// Build a lookup table that if the top bit of the color value is zero
// then the value is zero, otherwise its just the value.
......@@ -519,6 +525,8 @@ bool8_32 S9xGraphicsInit()
void S9xGraphicsDeinit(void)
{
// Free any memory allocated in S9xGraphicsInit
#if defined(USE_OLD_COLOUR_OPS)
/* Pre-1.60 colour operations */
if (GFX.X2)
{
free((char*) GFX.X2);
......@@ -529,6 +537,7 @@ void S9xGraphicsDeinit(void)
free((char*) GFX.ZERO_OR_X2);
GFX.ZERO_OR_X2 = NULL;
}
#endif
if (GFX.ZERO)
{
free((char*) GFX.ZERO);
......
......@@ -83,9 +83,11 @@ extern uint32 HIGH_BITS_SHIFTED_TWO_MASK;
#define DECOMPOSE_PIXEL_RGB565(PIX,R,G,B) {(R) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (B) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_RGB565 (1 << 5)
#define MAX_RED_RGB565 31
#define MAX_GREEN_RGB565 63
#define MAX_BLUE_RGB565 31
#define MAX_RED_RGB565 31
#define MAX_GREEN_RGB565 63
#define MAX_BLUE_RGB565 31
#define RED_SHIFT_BITS_RGB565 11
#define GREEN_SHIFT_BITS_RGB565 6
#define RED_LOW_BIT_MASK_RGB565 0x0800
#define GREEN_LOW_BIT_MASK_RGB565 0x0020
#define BLUE_LOW_BIT_MASK_RGB565 0x0001
......@@ -103,9 +105,11 @@ extern uint32 HIGH_BITS_SHIFTED_TWO_MASK;
#define DECOMPOSE_PIXEL_RGB555(PIX,R,G,B) {(R) = (PIX) >> 10; (G) = ((PIX) >> 5) & 0x1f; (B) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_RGB555 (1 << 15)
#define MAX_RED_RGB555 31
#define MAX_GREEN_RGB555 31
#define MAX_BLUE_RGB555 31
#define MAX_RED_RGB555 31
#define MAX_GREEN_RGB555 31
#define MAX_BLUE_RGB555 31
#define RED_SHIFT_BITS_RGB555 10
#define GREEN_SHIFT_BITS_RGB555 5
#define RED_LOW_BIT_MASK_RGB555 0x0400
#define GREEN_LOW_BIT_MASK_RGB555 0x0020
#define BLUE_LOW_BIT_MASK_RGB555 0x0001
......@@ -117,106 +121,6 @@ extern uint32 HIGH_BITS_SHIFTED_TWO_MASK;
#define THIRD_COLOR_MASK_RGB555 0x001F
#define ALPHA_BITS_MASK_RGB555 0x0000
// BGR565 format
#define BUILD_PIXEL_BGR565(R,G,B) (((int) (B) << 11) | ((int) (G) << 6) | (int) (R))
#define BUILD_PIXEL2_BGR565(R,G,B) (((int) (B) << 11) | ((int) (G) << 5) | (int) (R))
#define DECOMPOSE_PIXEL_BGR565(PIX,R,G,B) {(B) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (R) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_BGR565 (1 << 5)
#define MAX_RED_BGR565 31
#define MAX_GREEN_BGR565 63
#define MAX_BLUE_BGR565 31
#define RED_LOW_BIT_MASK_BGR565 0x0001
#define GREEN_LOW_BIT_MASK_BGR565 0x0040
#define BLUE_LOW_BIT_MASK_BGR565 0x0800
#define RED_HI_BIT_MASK_BGR565 0x0010
#define GREEN_HI_BIT_MASK_BGR565 0x0400
#define BLUE_HI_BIT_MASK_BGR565 0x8000
#define FIRST_COLOR_MASK_BGR565 0xF800
#define SECOND_COLOR_MASK_BGR565 0x07E0
#define THIRD_COLOR_MASK_BGR565 0x001F
#define ALPHA_BITS_MASK_BGR565 0x0000
// BGR555 format
#define BUILD_PIXEL_BGR555(R,G,B) (((int) (B) << 10) | ((int) (G) << 5) | (int) (R))
#define BUILD_PIXEL2_BGR555(R,G,B) (((int) (B) << 10) | ((int) (G) << 5) | (int) (R))
#define DECOMPOSE_PIXEL_BGR555(PIX,R,G,B) {(B) = (PIX) >> 10; (G) = ((PIX) >> 5) & 0x1f; (R) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_BGR555 (1 << 15)
#define MAX_RED_BGR555 31
#define MAX_GREEN_BGR555 31
#define MAX_BLUE_BGR555 31
#define RED_LOW_BIT_MASK_BGR555 0x0001
#define GREEN_LOW_BIT_MASK_BGR555 0x0020
#define BLUE_LOW_BIT_MASK_BGR555 0x0400
#define RED_HI_BIT_MASK_BGR555 0x0010
#define GREEN_HI_BIT_MASK_BGR555 0x0200
#define BLUE_HI_BIT_MASK_BGR555 0x4000
#define FIRST_COLOR_MASK_BGR555 0x7C00
#define SECOND_COLOR_MASK_BGR555 0x03E0
#define THIRD_COLOR_MASK_BGR555 0x001F
#define ALPHA_BITS_MASK_BGR555 0x0000
// GBR565 format
#define BUILD_PIXEL_GBR565(R,G,B) (((int) (G) << 11) | ((int) (B) << 6) | (int) (R))
#define BUILD_PIXEL2_GBR565(R,G,B) (((int) (G) << 11) | ((int) (B) << 5) | (int) (R))
#define DECOMPOSE_PIXEL_GBR565(PIX,R,G,B) {(G) = (PIX) >> 11; (B) = ((PIX) >> 6) & 0x1f; (R) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_GBR565 (1 << 5)
#define MAX_RED_GBR565 31
#define MAX_BLUE_GBR565 63
#define MAX_GREEN_GBR565 31
#define RED_LOW_BIT_MASK_GBR565 0x0001
#define BLUE_LOW_BIT_MASK_GBR565 0x0040
#define GREEN_LOW_BIT_MASK_GBR565 0x0800
#define RED_HI_BIT_MASK_GBR565 0x0010
#define BLUE_HI_BIT_MASK_GBR565 0x0400
#define GREEN_HI_BIT_MASK_GBR565 0x8000
#define FIRST_COLOR_MASK_GBR565 0xF800
#define SECOND_COLOR_MASK_GBR565 0x07E0
#define THIRD_COLOR_MASK_GBR565 0x001F
#define ALPHA_BITS_MASK_GBR565 0x0000
// GBR555 format
#define BUILD_PIXEL_GBR555(R,G,B) (((int) (G) << 10) | ((int) (B) << 5) | (int) (R))
#define BUILD_PIXEL2_GBR555(R,G,B) (((int) (G) << 10) | ((int) (B) << 5) | (int) (R))
#define DECOMPOSE_PIXEL_GBR555(PIX,R,G,B) {(G) = (PIX) >> 10; (B) = ((PIX) >> 5) & 0x1f; (R) = (PIX) & 0x1f; }
#define SPARE_RGB_BIT_MASK_GBR555 (1 << 15)
#define MAX_RED_GBR555 31
#define MAX_BLUE_GBR555 31
#define MAX_GREEN_GBR555 31
#define RED_LOW_BIT_MASK_GBR555 0x0001
#define BLUE_LOW_BIT_MASK_GBR555 0x0020
#define GREEN_LOW_BIT_MASK_GBR555 0x0400
#define RED_HI_BIT_MASK_GBR555 0x0010
#define BLUE_HI_BIT_MASK_GBR555 0x0200
#define GREEN_HI_BIT_MASK_GBR555 0x4000
#define FIRST_COLOR_MASK_GBR555 0x7C00
#define SECOND_COLOR_MASK_GBR555 0x03E0
#define THIRD_COLOR_MASK_GBR555 0x001F
#define ALPHA_BITS_MASK_GBR555 0x0000
// RGB5551 format
#define BUILD_PIXEL_RGB5551(R,G,B) (((int) (R) << 11) | ((int) (G) << 6) | (int) ((B) << 1) | 1)
#define BUILD_PIXEL2_RGB5551(R,G,B) (((int) (R) << 11) | ((int) (G) << 6) | (int) ((B) << 1) | 1)
#define DECOMPOSE_PIXEL_RGB5551(PIX,R,G,B) {(R) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (B) = ((PIX) >> 1) & 0x1f; }
#define SPARE_RGB_BIT_MASK_RGB5551 (1)
#define MAX_RED_RGB5551 31
#define MAX_GREEN_RGB5551 31
#define MAX_BLUE_RGB5551 31
#define RED_LOW_BIT_MASK_RGB5551 0x0800
#define GREEN_LOW_BIT_MASK_RGB5551 0x0040
#define BLUE_LOW_BIT_MASK_RGB5551 0x0002
#define RED_HI_BIT_MASK_RGB5551 0x8000
#define GREEN_HI_BIT_MASK_RGB5551 0x0400
#define BLUE_HI_BIT_MASK_RGB5551 0x0020
#define FIRST_COLOR_MASK_RGB5551 0xf800
#define SECOND_COLOR_MASK_RGB5551 0x07c0
#define THIRD_COLOR_MASK_RGB5551 0x003e
#define ALPHA_BITS_MASK_RGB5551 0x0001
#ifndef GFX_MULTI_FORMAT
#define CONCAT(X,Y) X##Y
......@@ -230,24 +134,28 @@ extern uint32 HIGH_BITS_SHIFTED_TWO_MASK;
#define BUILD_PIXEL2(R,G,B) BUILD_PIXEL2_D(PIXEL_FORMAT,R,G,B)
#define DECOMPOSE_PIXEL(PIX,R,G,B) DECOMPOSE_PIXEL_D(PIXEL_FORMAT,PIX,R,G,B)
#define MAX_RED_D(F) CONCAT(MAX_RED_,F)
#define MAX_BLUE_D(F) CONCAT(MAX_BLUE_,F)
#define MAX_GREEN_D(F) CONCAT(MAX_GREEN_,F)
#define RED_LOW_BIT_MASK_D(F) CONCAT(RED_LOW_BIT_MASK_,F)
#define BLUE_LOW_BIT_MASK_D(F) CONCAT(BLUE_LOW_BIT_MASK_,F)
#define GREEN_LOW_BIT_MASK_D(F) CONCAT(GREEN_LOW_BIT_MASK_,F)
#define RED_HI_BIT_MASK_D(F) CONCAT(RED_HI_BIT_MASK_,F)
#define BLUE_HI_BIT_MASK_D(F) CONCAT(BLUE_HI_BIT_MASK_,F)
#define GREEN_HI_BIT_MASK_D(F) CONCAT(GREEN_HI_BIT_MASK_,F)
#define MAX_RED_D(F) CONCAT(MAX_RED_,F)
#define MAX_BLUE_D(F) CONCAT(MAX_BLUE_,F)
#define MAX_GREEN_D(F) CONCAT(MAX_GREEN_,F)
#define RED_SHIFT_BITS_D(F) CONCAT(RED_SHIFT_BITS_, F)
#define GREEN_SHIFT_BITS_D(F) CONCAT(GREEN_SHIFT_BITS_, F)
#define RED_LOW_BIT_MASK_D(F) CONCAT(RED_LOW_BIT_MASK_,F)
#define BLUE_LOW_BIT_MASK_D(F) CONCAT(BLUE_LOW_BIT_MASK_,F)
#define GREEN_LOW_BIT_MASK_D(F) CONCAT(GREEN_LOW_BIT_MASK_,F)
#define RED_HI_BIT_MASK_D(F) CONCAT(RED_HI_BIT_MASK_,F)
#define BLUE_HI_BIT_MASK_D(F) CONCAT(BLUE_HI_BIT_MASK_,F)
#define GREEN_HI_BIT_MASK_D(F) CONCAT(GREEN_HI_BIT_MASK_,F)
#define FIRST_COLOR_MASK_D(F) CONCAT(FIRST_COLOR_MASK_,F)
#define SECOND_COLOR_MASK_D(F) CONCAT(SECOND_COLOR_MASK_,F)
#define THIRD_COLOR_MASK_D(F) CONCAT(THIRD_COLOR_MASK_,F)
#define ALPHA_BITS_MASK_D(F) CONCAT(ALPHA_BITS_MASK_,F)
#define MAX_RED MAX_RED_D(PIXEL_FORMAT)
#define MAX_BLUE MAX_BLUE_D(PIXEL_FORMAT)
#define MAX_GREEN MAX_GREEN_D(PIXEL_FORMAT)
#define RED_LOW_BIT_MASK RED_LOW_BIT_MASK_D(PIXEL_FORMAT)
#define MAX_RED MAX_RED_D(PIXEL_FORMAT)
#define MAX_BLUE MAX_BLUE_D(PIXEL_FORMAT)
#define MAX_GREEN MAX_GREEN_D(PIXEL_FORMAT)
#define RED_SHIFT_BITS RED_SHIFT_BITS_D(PIXEL_FORMAT)
#define GREEN_SHIFT_BITS GREEN_SHIFT_BITS_D(PIXEL_FORMAT)
#define RED_LOW_BIT_MASK RED_LOW_BIT_MASK_D(PIXEL_FORMAT)
#define BLUE_LOW_BIT_MASK BLUE_LOW_BIT_MASK_D(PIXEL_FORMAT)
#define GREEN_LOW_BIT_MASK GREEN_LOW_BIT_MASK_D(PIXEL_FORMAT)
#define RED_HI_BIT_MASK RED_HI_BIT_MASK_D(PIXEL_FORMAT)
......
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