From 435a5ef19ed64121a87df4d4e7b420ae8b5a1ea4 Mon Sep 17 00:00:00 2001 From: m45t3r Date: Wed, 27 May 2020 20:43:50 -0300 Subject: Port color operation code from Snes9x 1.60 --- source/pixform.h | 109 ++++--------------------------------------------------- 1 file changed, 8 insertions(+), 101 deletions(-) (limited to 'source/pixform.h') diff --git a/source/pixform.h b/source/pixform.h index f9c075c..4a61ae2 100644 --- a/source/pixform.h +++ b/source/pixform.h @@ -12,6 +12,8 @@ #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 @@ -32,6 +34,8 @@ #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 @@ -43,107 +47,6 @@ #define THIRD_COLOR_MASK_RGB555 0x001F #define ALPHA_BITS_MASK_RGB555 0x0000 -/* BGR565 format */ -#define BUILD_PIXEL_BGR565(R,G,B) (((int32_t) (B) << 11) | ((int32_t) (G) << 6) | (int32_t) (R)) -#define BUILD_PIXEL2_BGR565(R,G,B) (((int32_t) (B) << 11) | ((int32_t) (G) << 5) | (int32_t) (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) (((int32_t) (B) << 10) | ((int32_t) (G) << 5) | (int32_t) (R)) -#define BUILD_PIXEL2_BGR555(R,G,B) (((int32_t) (B) << 10) | ((int32_t) (G) << 5) | (int32_t) (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) (((int32_t) (G) << 11) | ((int32_t) (B) << 6) | (int32_t) (R)) -#define BUILD_PIXEL2_GBR565(R,G,B) (((int32_t) (G) << 11) | ((int32_t) (B) << 5) | (int32_t) (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) (((int32_t) (G) << 10) | ((int32_t) (B) << 5) | (int32_t) (R)) -#define BUILD_PIXEL2_GBR555(R,G,B) (((int32_t) (G) << 10) | ((int32_t) (B) << 5) | (int32_t) (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) (((int32_t) (R) << 11) | ((int32_t) (G) << 6) | (int32_t) ((B) << 1) | 1) -#define BUILD_PIXEL2_RGB5551(R,G,B) (((int32_t) (R) << 11) | ((int32_t) (G) << 6) | (int32_t) ((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 - - #define CONCAT(X,Y) X##Y /* C pre-processor needs a two stage macro define to enable it to concat @@ -159,6 +62,8 @@ #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) @@ -173,6 +78,8 @@ #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) -- cgit v1.2.3