2018-11-15 23:31:39 +00:00
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/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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2010-09-25 15:46:12 +00:00
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#ifndef _PIXFORM_H_
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#define _PIXFORM_H_
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#ifdef GFX_MULTI_FORMAT
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enum { RGB565, RGB555, BGR565, BGR555, GBR565, GBR555, RGB5551 };
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#define BUILD_PIXEL(R, G, B) ((*GFX.BuildPixel) (R, G, B))
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#define BUILD_PIXEL2(R, G, B) ((*GFX.BuildPixel2) (R, G, B))
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#define DECOMPOSE_PIXEL(PIX, R, G, B) ((*GFX.DecomposePixel) (PIX, R, G, B))
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extern uint32 MAX_RED;
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extern uint32 MAX_GREEN;
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extern uint32 MAX_BLUE;
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extern uint32 RED_LOW_BIT_MASK;
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extern uint32 GREEN_LOW_BIT_MASK;
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extern uint32 BLUE_LOW_BIT_MASK;
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extern uint32 RED_HI_BIT_MASK;
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extern uint32 GREEN_HI_BIT_MASK;
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extern uint32 BLUE_HI_BIT_MASK;
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extern uint32 FIRST_COLOR_MASK;
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extern uint32 SECOND_COLOR_MASK;
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extern uint32 THIRD_COLOR_MASK;
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extern uint32 ALPHA_BITS_MASK;
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extern uint32 GREEN_HI_BIT;
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extern uint32 RGB_LOW_BITS_MASK;
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extern uint32 RGB_HI_BITS_MASK;
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extern uint32 RGB_HI_BITS_MASKx2;
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extern uint32 RGB_REMOVE_LOW_BITS_MASK;
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extern uint32 FIRST_THIRD_COLOR_MASK;
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extern uint32 TWO_LOW_BITS_MASK;
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extern uint32 HIGH_BITS_SHIFTED_TWO_MASK;
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extern uint32 SPARE_RGB_BIT_MASK;
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#endif
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/* RGB565 format */
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#define BUILD_PIXEL_RGB565(R, G, B) (((int) (R) << 11) | ((int) (G) << 6) | (int) (B))
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#define BUILD_PIXEL2_RGB565(R, G, B) (((int) (R) << 11) | ((int) (G) << 5) | (int) (B))
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#define DECOMPOSE_PIXEL_RGB565(PIX, R, G, B) { (R) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (B) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_RGB565 (1 << 5)
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#define MAX_RED_RGB565 31
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#define MAX_GREEN_RGB565 63
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#define MAX_BLUE_RGB565 31
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#define RED_LOW_BIT_MASK_RGB565 0x0800
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#define GREEN_LOW_BIT_MASK_RGB565 0x0020
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#define BLUE_LOW_BIT_MASK_RGB565 0x0001
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#define RED_HI_BIT_MASK_RGB565 0x8000
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#define GREEN_HI_BIT_MASK_RGB565 0x0400
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#define BLUE_HI_BIT_MASK_RGB565 0x0010
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#define FIRST_COLOR_MASK_RGB565 0xF800
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#define SECOND_COLOR_MASK_RGB565 0x07E0
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#define THIRD_COLOR_MASK_RGB565 0x001F
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#define ALPHA_BITS_MASK_RGB565 0x0000
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/* RGB555 format */
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#define BUILD_PIXEL_RGB555(R, G, B) (((int) (R) << 10) | ((int) (G) << 5) | (int) (B))
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#define BUILD_PIXEL2_RGB555(R, G, B) (((int) (R) << 10) | ((int) (G) << 5) | (int) (B))
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#define DECOMPOSE_PIXEL_RGB555(PIX, R, G, B) { (R) = (PIX) >> 10; (G) = ((PIX) >> 5) & 0x1f; (B) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_RGB555 (1 << 15)
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#define MAX_RED_RGB555 31
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#define MAX_GREEN_RGB555 31
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#define MAX_BLUE_RGB555 31
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#define RED_LOW_BIT_MASK_RGB555 0x0400
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#define GREEN_LOW_BIT_MASK_RGB555 0x0020
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#define BLUE_LOW_BIT_MASK_RGB555 0x0001
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#define RED_HI_BIT_MASK_RGB555 0x4000
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#define GREEN_HI_BIT_MASK_RGB555 0x0200
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#define BLUE_HI_BIT_MASK_RGB555 0x0010
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#define FIRST_COLOR_MASK_RGB555 0x7C00
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#define SECOND_COLOR_MASK_RGB555 0x03E0
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#define THIRD_COLOR_MASK_RGB555 0x001F
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#define ALPHA_BITS_MASK_RGB555 0x0000
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/* BGR565 format */
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#define BUILD_PIXEL_BGR565(R, G, B) (((int) (B) << 11) | ((int) (G) << 6) | (int) (R))
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#define BUILD_PIXEL2_BGR565(R, G, B) (((int) (B) << 11) | ((int) (G) << 5) | (int) (R))
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#define DECOMPOSE_PIXEL_BGR565(PIX, R, G, B) { (B) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (R) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_BGR565 (1 << 5)
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#define MAX_RED_BGR565 31
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#define MAX_GREEN_BGR565 63
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#define MAX_BLUE_BGR565 31
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#define RED_LOW_BIT_MASK_BGR565 0x0001
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#define GREEN_LOW_BIT_MASK_BGR565 0x0040
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#define BLUE_LOW_BIT_MASK_BGR565 0x0800
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#define RED_HI_BIT_MASK_BGR565 0x0010
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#define GREEN_HI_BIT_MASK_BGR565 0x0400
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#define BLUE_HI_BIT_MASK_BGR565 0x8000
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#define FIRST_COLOR_MASK_BGR565 0xF800
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#define SECOND_COLOR_MASK_BGR565 0x07E0
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#define THIRD_COLOR_MASK_BGR565 0x001F
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#define ALPHA_BITS_MASK_BGR565 0x0000
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/* BGR555 format */
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#define BUILD_PIXEL_BGR555(R, G, B) (((int) (B) << 10) | ((int) (G) << 5) | (int) (R))
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#define BUILD_PIXEL2_BGR555(R, G, B) (((int) (B) << 10) | ((int) (G) << 5) | (int) (R))
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#define DECOMPOSE_PIXEL_BGR555(PIX, R, G, B) { (B) = (PIX) >> 10; (G) = ((PIX) >> 5) & 0x1f; (R) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_BGR555 (1 << 15)
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#define MAX_RED_BGR555 31
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#define MAX_GREEN_BGR555 31
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#define MAX_BLUE_BGR555 31
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#define RED_LOW_BIT_MASK_BGR555 0x0001
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#define GREEN_LOW_BIT_MASK_BGR555 0x0020
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#define BLUE_LOW_BIT_MASK_BGR555 0x0400
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#define RED_HI_BIT_MASK_BGR555 0x0010
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#define GREEN_HI_BIT_MASK_BGR555 0x0200
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#define BLUE_HI_BIT_MASK_BGR555 0x4000
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#define FIRST_COLOR_MASK_BGR555 0x7C00
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#define SECOND_COLOR_MASK_BGR555 0x03E0
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#define THIRD_COLOR_MASK_BGR555 0x001F
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#define ALPHA_BITS_MASK_BGR555 0x0000
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/* GBR565 format */
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#define BUILD_PIXEL_GBR565(R, G, B) (((int) (G) << 11) | ((int) (B) << 6) | (int) (R))
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#define BUILD_PIXEL2_GBR565(R, G, B) (((int) (G) << 11) | ((int) (B) << 5) | (int) (R))
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#define DECOMPOSE_PIXEL_GBR565(PIX, R, G, B) { (G) = (PIX) >> 11; (B) = ((PIX) >> 6) & 0x1f; (R) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_GBR565 (1 << 5)
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#define MAX_RED_GBR565 31
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#define MAX_GREEN_GBR565 31
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#define MAX_BLUE_GBR565 63
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#define RED_LOW_BIT_MASK_GBR565 0x0001
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#define GREEN_LOW_BIT_MASK_GBR565 0x0800
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#define BLUE_LOW_BIT_MASK_GBR565 0x0040
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#define RED_HI_BIT_MASK_GBR565 0x0010
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#define GREEN_HI_BIT_MASK_GBR565 0x8000
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#define BLUE_HI_BIT_MASK_GBR565 0x0400
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#define FIRST_COLOR_MASK_GBR565 0xF800
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#define SECOND_COLOR_MASK_GBR565 0x07E0
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#define THIRD_COLOR_MASK_GBR565 0x001F
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#define ALPHA_BITS_MASK_GBR565 0x0000
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/* GBR555 format */
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#define BUILD_PIXEL_GBR555(R, G, B) (((int) (G) << 10) | ((int) (B) << 5) | (int) (R))
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#define BUILD_PIXEL2_GBR555(R, G, B) (((int) (G) << 10) | ((int) (B) << 5) | (int) (R))
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#define DECOMPOSE_PIXEL_GBR555(PIX, R, G, B) { (G) = (PIX) >> 10; (B) = ((PIX) >> 5) & 0x1f; (R) = (PIX) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_GBR555 (1 << 15)
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#define MAX_RED_GBR555 31
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#define MAX_GREEN_GBR555 31
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#define MAX_BLUE_GBR555 31
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#define RED_LOW_BIT_MASK_GBR555 0x0001
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#define GREEN_LOW_BIT_MASK_GBR555 0x0400
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#define BLUE_LOW_BIT_MASK_GBR555 0x0020
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#define RED_HI_BIT_MASK_GBR555 0x0010
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#define GREEN_HI_BIT_MASK_GBR555 0x4000
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#define BLUE_HI_BIT_MASK_GBR555 0x0200
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#define FIRST_COLOR_MASK_GBR555 0x7C00
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#define SECOND_COLOR_MASK_GBR555 0x03E0
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#define THIRD_COLOR_MASK_GBR555 0x001F
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#define ALPHA_BITS_MASK_GBR555 0x0000
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/* RGB5551 format */
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#define BUILD_PIXEL_RGB5551(R, G, B) (((int) (R) << 11) | ((int) (G) << 6) | (int) ((B) << 1) | 1)
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#define BUILD_PIXEL2_RGB5551(R, G, B) (((int) (R) << 11) | ((int) (G) << 6) | (int) ((B) << 1) | 1)
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#define DECOMPOSE_PIXEL_RGB5551(PIX, R, G, B) { (R) = (PIX) >> 11; (G) = ((PIX) >> 6) & 0x1f; (B) = ((PIX) >> 1) & 0x1f; }
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#define SPARE_RGB_BIT_MASK_RGB5551 (1)
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#define MAX_RED_RGB5551 31
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#define MAX_GREEN_RGB5551 31
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#define MAX_BLUE_RGB5551 31
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#define RED_LOW_BIT_MASK_RGB5551 0x0800
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#define GREEN_LOW_BIT_MASK_RGB5551 0x0040
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#define BLUE_LOW_BIT_MASK_RGB5551 0x0002
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#define RED_HI_BIT_MASK_RGB5551 0x8000
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#define GREEN_HI_BIT_MASK_RGB5551 0x0400
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#define BLUE_HI_BIT_MASK_RGB5551 0x0020
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#define FIRST_COLOR_MASK_RGB5551 0xf800
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#define SECOND_COLOR_MASK_RGB5551 0x07c0
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#define THIRD_COLOR_MASK_RGB5551 0x003e
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#define ALPHA_BITS_MASK_RGB5551 0x0001
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#ifndef GFX_MULTI_FORMAT
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#define CONCAT(X, Y) X##Y
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// C pre-processor needs a two stage macro define to enable it to concat
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// to macro names together to form the name of another macro.
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#define BUILD_PIXEL_D(F, R, G, B) CONCAT(BUILD_PIXEL_,F) (R, G, B)
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#define BUILD_PIXEL2_D(F, R, G, B) CONCAT(BUILD_PIXEL2_,F) (R, G, B)
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#define DECOMPOSE_PIXEL_D(F, PIX, R, G, B) CONCAT(DECOMPOSE_PIXEL_,F) (PIX, R, G, B)
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#define BUILD_PIXEL(R, G, B) BUILD_PIXEL_D(PIXEL_FORMAT, R, G, B)
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#define BUILD_PIXEL2(R, G, B) BUILD_PIXEL2_D(PIXEL_FORMAT, R, G, B)
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#define DECOMPOSE_PIXEL(PIX, R, G, B) DECOMPOSE_PIXEL_D(PIXEL_FORMAT, PIX, R, G, B)
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#define MAX_RED_D(F) CONCAT(MAX_RED_, F)
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#define MAX_GREEN_D(F) CONCAT(MAX_GREEN_, F)
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#define MAX_BLUE_D(F) CONCAT(MAX_BLUE_, F)
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#define RED_LOW_BIT_MASK_D(F) CONCAT(RED_LOW_BIT_MASK_, F)
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#define GREEN_LOW_BIT_MASK_D(F) CONCAT(GREEN_LOW_BIT_MASK_, F)
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#define BLUE_LOW_BIT_MASK_D(F) CONCAT(BLUE_LOW_BIT_MASK_, F)
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#define RED_HI_BIT_MASK_D(F) CONCAT(RED_HI_BIT_MASK_, F)
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#define GREEN_HI_BIT_MASK_D(F) CONCAT(GREEN_HI_BIT_MASK_, F)
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#define BLUE_HI_BIT_MASK_D(F) CONCAT(BLUE_HI_BIT_MASK_, F)
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#define FIRST_COLOR_MASK_D(F) CONCAT(FIRST_COLOR_MASK_, F)
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#define SECOND_COLOR_MASK_D(F) CONCAT(SECOND_COLOR_MASK_, F)
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#define THIRD_COLOR_MASK_D(F) CONCAT(THIRD_COLOR_MASK_, F)
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#define ALPHA_BITS_MASK_D(F) CONCAT(ALPHA_BITS_MASK_, F)
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#define MAX_RED MAX_RED_D(PIXEL_FORMAT)
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#define MAX_GREEN MAX_GREEN_D(PIXEL_FORMAT)
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#define MAX_BLUE MAX_BLUE_D(PIXEL_FORMAT)
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#define RED_LOW_BIT_MASK RED_LOW_BIT_MASK_D(PIXEL_FORMAT)
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#define GREEN_LOW_BIT_MASK GREEN_LOW_BIT_MASK_D(PIXEL_FORMAT)
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#define BLUE_LOW_BIT_MASK BLUE_LOW_BIT_MASK_D(PIXEL_FORMAT)
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#define RED_HI_BIT_MASK RED_HI_BIT_MASK_D(PIXEL_FORMAT)
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#define GREEN_HI_BIT_MASK GREEN_HI_BIT_MASK_D(PIXEL_FORMAT)
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#define BLUE_HI_BIT_MASK BLUE_HI_BIT_MASK_D(PIXEL_FORMAT)
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#define FIRST_COLOR_MASK FIRST_COLOR_MASK_D(PIXEL_FORMAT)
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#define SECOND_COLOR_MASK SECOND_COLOR_MASK_D(PIXEL_FORMAT)
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#define THIRD_COLOR_MASK THIRD_COLOR_MASK_D(PIXEL_FORMAT)
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#define ALPHA_BITS_MASK ALPHA_BITS_MASK_D(PIXEL_FORMAT)
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#define GREEN_HI_BIT ((MAX_GREEN + 1) >> 1)
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#define RGB_LOW_BITS_MASK (RED_LOW_BIT_MASK | GREEN_LOW_BIT_MASK | BLUE_LOW_BIT_MASK)
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#define RGB_HI_BITS_MASK (RED_HI_BIT_MASK | GREEN_HI_BIT_MASK | BLUE_HI_BIT_MASK)
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#define RGB_HI_BITS_MASKx2 ((RED_HI_BIT_MASK | GREEN_HI_BIT_MASK | BLUE_HI_BIT_MASK) << 1)
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#define RGB_REMOVE_LOW_BITS_MASK (~RGB_LOW_BITS_MASK)
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#define FIRST_THIRD_COLOR_MASK (FIRST_COLOR_MASK | THIRD_COLOR_MASK)
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#define TWO_LOW_BITS_MASK (RGB_LOW_BITS_MASK | (RGB_LOW_BITS_MASK << 1))
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#define HIGH_BITS_SHIFTED_TWO_MASK (((FIRST_COLOR_MASK | SECOND_COLOR_MASK | THIRD_COLOR_MASK) & ~TWO_LOW_BITS_MASK ) >> 2)
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#endif
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#endif
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