mirror of https://github.com/encounter/SDL.git
Cleaning up video driver
This commit is contained in:
Francisco Javier Trujillo Mata
Sam Lantinga
parent
3f7dda8c72
commit
944111dbcf
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@ -1,632 +0,0 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#include "../../video/SDL_blit.h"
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/* This code assumes that r, g, b, a are the source color,
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* and in the blend and add case, the RGB values are premultiplied by a.
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*/
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#define DRAW_MUL(_a, _b) (((unsigned)(_a)*(_b))/255)
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#define DRAW_FASTSETPIXEL(type) \
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*pixel = (type) color
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#define DRAW_FASTSETPIXEL1 DRAW_FASTSETPIXEL(Uint8)
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#define DRAW_FASTSETPIXEL2 DRAW_FASTSETPIXEL(Uint16)
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#define DRAW_FASTSETPIXEL4 DRAW_FASTSETPIXEL(Uint32)
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#define DRAW_FASTSETPIXELXY(x, y, type, bpp, color) \
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*(type *)((Uint8 *)dst->pixels + (y) * dst->pitch \
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+ (x) * bpp) = (type) color
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#define DRAW_FASTSETPIXELXY1(x, y) DRAW_FASTSETPIXELXY(x, y, Uint8, 1, color)
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#define DRAW_FASTSETPIXELXY2(x, y) DRAW_FASTSETPIXELXY(x, y, Uint16, 2, color)
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#define DRAW_FASTSETPIXELXY4(x, y) DRAW_FASTSETPIXELXY(x, y, Uint32, 4, color)
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#define DRAW_SETPIXEL(setpixel) \
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do { \
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unsigned sr = r, sg = g, sb = b, sa = a; (void) sa; \
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setpixel; \
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} while (0)
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#define DRAW_SETPIXEL_BLEND(getpixel, setpixel) \
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do { \
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unsigned sr, sg, sb, sa = 0xFF; \
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getpixel; \
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sr = DRAW_MUL(inva, sr) + r; \
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sg = DRAW_MUL(inva, sg) + g; \
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sb = DRAW_MUL(inva, sb) + b; \
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sa = DRAW_MUL(inva, sa) + a; \
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setpixel; \
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} while (0)
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#define DRAW_SETPIXEL_ADD(getpixel, setpixel) \
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do { \
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unsigned sr, sg, sb, sa; (void) sa; \
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getpixel; \
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sr += r; if (sr > 0xff) sr = 0xff; \
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sg += g; if (sg > 0xff) sg = 0xff; \
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sb += b; if (sb > 0xff) sb = 0xff; \
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setpixel; \
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} while (0)
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#define DRAW_SETPIXEL_MOD(getpixel, setpixel) \
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do { \
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unsigned sr, sg, sb, sa; (void) sa; \
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getpixel; \
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sr = DRAW_MUL(sr, r); \
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sg = DRAW_MUL(sg, g); \
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sb = DRAW_MUL(sb, b); \
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setpixel; \
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} while (0)
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#define DRAW_SETPIXEL_MUL(getpixel, setpixel) \
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do { \
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unsigned sr, sg, sb, sa; sa = 0xFF; \
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getpixel; \
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sr = DRAW_MUL(sr, r) + DRAW_MUL(inva, sr); if (sr > 0xff) sr = 0xff; \
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sg = DRAW_MUL(sg, g) + DRAW_MUL(inva, sg); if (sg > 0xff) sg = 0xff; \
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sb = DRAW_MUL(sb, b) + DRAW_MUL(inva, sb); if (sb > 0xff) sb = 0xff; \
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sa = DRAW_MUL(sa, a) + DRAW_MUL(inva, sa); if (sa > 0xff) sa = 0xff; \
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setpixel; \
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} while (0)
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#define DRAW_SETPIXELXY(x, y, type, bpp, op) \
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do { \
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type *pixel = (type *)((Uint8 *)dst->pixels + (y) * dst->pitch \
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+ (x) * bpp); \
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op; \
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} while (0)
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/*
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* Define draw operators for RGB555
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*/
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#define DRAW_SETPIXEL_RGB555 \
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DRAW_SETPIXEL(RGB555_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_BLEND_RGB555 \
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DRAW_SETPIXEL_BLEND(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
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RGB555_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_ADD_RGB555 \
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DRAW_SETPIXEL_ADD(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
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RGB555_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MOD_RGB555 \
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DRAW_SETPIXEL_MOD(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
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RGB555_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MUL_RGB555 \
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DRAW_SETPIXEL_MUL(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
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RGB555_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXELXY_RGB555(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB555)
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#define DRAW_SETPIXELXY_BLEND_RGB555(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB555)
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#define DRAW_SETPIXELXY_ADD_RGB555(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB555)
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#define DRAW_SETPIXELXY_MOD_RGB555(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB555)
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#define DRAW_SETPIXELXY_MUL_RGB555(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB555)
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/*
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* Define draw operators for RGB565
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*/
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#define DRAW_SETPIXEL_RGB565 \
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DRAW_SETPIXEL(RGB565_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_BLEND_RGB565 \
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DRAW_SETPIXEL_BLEND(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
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RGB565_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_ADD_RGB565 \
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DRAW_SETPIXEL_ADD(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
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RGB565_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MOD_RGB565 \
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DRAW_SETPIXEL_MOD(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
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RGB565_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MUL_RGB565 \
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DRAW_SETPIXEL_MUL(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
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RGB565_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXELXY_RGB565(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB565)
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#define DRAW_SETPIXELXY_BLEND_RGB565(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB565)
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#define DRAW_SETPIXELXY_ADD_RGB565(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB565)
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#define DRAW_SETPIXELXY_MOD_RGB565(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB565)
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#define DRAW_SETPIXELXY_MUL_RGB565(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB565)
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/*
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* Define draw operators for RGB888
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*/
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#define DRAW_SETPIXEL_RGB888 \
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DRAW_SETPIXEL(RGB888_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_BLEND_RGB888 \
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DRAW_SETPIXEL_BLEND(RGB_FROM_RGB888(*pixel, sr, sg, sb), \
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RGB888_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_ADD_RGB888 \
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DRAW_SETPIXEL_ADD(RGB_FROM_RGB888(*pixel, sr, sg, sb), \
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RGB888_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MOD_RGB888 \
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DRAW_SETPIXEL_MOD(RGB_FROM_RGB888(*pixel, sr, sg, sb), \
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RGB888_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXEL_MUL_RGB888 \
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DRAW_SETPIXEL_MUL(RGB_FROM_RGB888(*pixel, sr, sg, sb), \
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RGB888_FROM_RGB(*pixel, sr, sg, sb))
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#define DRAW_SETPIXELXY_RGB888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGB888)
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#define DRAW_SETPIXELXY_BLEND_RGB888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGB888)
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#define DRAW_SETPIXELXY_ADD_RGB888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGB888)
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#define DRAW_SETPIXELXY_MOD_RGB888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGB888)
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#define DRAW_SETPIXELXY_MUL_RGB888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGB888)
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/*
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* Define draw operators for ARGB8888
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*/
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#define DRAW_SETPIXEL_ARGB8888 \
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DRAW_SETPIXEL(ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_BLEND_ARGB8888 \
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DRAW_SETPIXEL_BLEND(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
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ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_ADD_ARGB8888 \
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DRAW_SETPIXEL_ADD(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
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ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_MOD_ARGB8888 \
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DRAW_SETPIXEL_MOD(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
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ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_MUL_ARGB8888 \
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DRAW_SETPIXEL_MUL(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
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ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
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#define DRAW_SETPIXELXY_ARGB8888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ARGB8888)
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#define DRAW_SETPIXELXY_BLEND_ARGB8888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_ARGB8888)
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#define DRAW_SETPIXELXY_ADD_ARGB8888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_ARGB8888)
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#define DRAW_SETPIXELXY_MOD_ARGB8888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_ARGB8888)
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#define DRAW_SETPIXELXY_MUL_ARGB8888(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_ARGB8888)
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/*
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* Define draw operators for general RGB
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*/
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#define DRAW_SETPIXEL_RGB \
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DRAW_SETPIXEL(PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
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#define DRAW_SETPIXEL_BLEND_RGB \
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DRAW_SETPIXEL_BLEND(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
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PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
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#define DRAW_SETPIXEL_ADD_RGB \
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DRAW_SETPIXEL_ADD(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
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PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
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#define DRAW_SETPIXEL_MOD_RGB \
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DRAW_SETPIXEL_MOD(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
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PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
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#define DRAW_SETPIXEL_MUL_RGB \
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DRAW_SETPIXEL_MUL(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
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PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
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#define DRAW_SETPIXELXY2_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB)
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#define DRAW_SETPIXELXY4_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGB)
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#define DRAW_SETPIXELXY2_BLEND_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB)
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#define DRAW_SETPIXELXY4_BLEND_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGB)
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#define DRAW_SETPIXELXY2_ADD_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB)
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#define DRAW_SETPIXELXY4_ADD_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGB)
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#define DRAW_SETPIXELXY2_MOD_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB)
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#define DRAW_SETPIXELXY4_MOD_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGB)
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#define DRAW_SETPIXELXY2_MUL_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB)
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#define DRAW_SETPIXELXY4_MUL_RGB(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGB)
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/*
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* Define draw operators for general RGBA
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*/
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|
||||||
|
|
||||||
#define DRAW_SETPIXEL_RGBA \
|
|
||||||
DRAW_SETPIXEL(PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
|
|
||||||
|
|
||||||
#define DRAW_SETPIXEL_BLEND_RGBA \
|
|
||||||
DRAW_SETPIXEL_BLEND(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
|
|
||||||
PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
|
|
||||||
|
|
||||||
#define DRAW_SETPIXEL_ADD_RGBA \
|
|
||||||
DRAW_SETPIXEL_ADD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
|
|
||||||
PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
|
|
||||||
|
|
||||||
#define DRAW_SETPIXEL_MOD_RGBA \
|
|
||||||
DRAW_SETPIXEL_MOD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
|
|
||||||
PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
|
|
||||||
|
|
||||||
#define DRAW_SETPIXEL_MUL_RGBA \
|
|
||||||
DRAW_SETPIXEL_MUL(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
|
|
||||||
PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
|
|
||||||
|
|
||||||
#define DRAW_SETPIXELXY4_RGBA(x, y) \
|
|
||||||
DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGBA)
|
|
||||||
|
|
||||||
#define DRAW_SETPIXELXY4_BLEND_RGBA(x, y) \
|
|
||||||
DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGBA)
|
|
||||||
|
|
||||||
#define DRAW_SETPIXELXY4_ADD_RGBA(x, y) \
|
|
||||||
DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGBA)
|
|
||||||
|
|
||||||
#define DRAW_SETPIXELXY4_MOD_RGBA(x, y) \
|
|
||||||
DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGBA)
|
|
||||||
|
|
||||||
#define DRAW_SETPIXELXY4_MUL_RGBA(x, y) \
|
|
||||||
DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGBA)
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Define line drawing macro
|
|
||||||
*/
|
|
||||||
|
|
||||||
#define ABS(_x) ((_x) < 0 ? -(_x) : (_x))
|
|
||||||
|
|
||||||
/* Horizontal line */
|
|
||||||
#define HLINE(type, op, draw_end) \
|
|
||||||
{ \
|
|
||||||
int length; \
|
|
||||||
int pitch = (dst->pitch / dst->format->BytesPerPixel); \
|
|
||||||
type *pixel; \
|
|
||||||
if (x1 <= x2) { \
|
|
||||||
pixel = (type *)dst->pixels + y1 * pitch + x1; \
|
|
||||||
length = draw_end ? (x2-x1+1) : (x2-x1); \
|
|
||||||
} else { \
|
|
||||||
pixel = (type *)dst->pixels + y1 * pitch + x2; \
|
|
||||||
if (!draw_end) { \
|
|
||||||
++pixel; \
|
|
||||||
} \
|
|
||||||
length = draw_end ? (x1-x2+1) : (x1-x2); \
|
|
||||||
} \
|
|
||||||
while (length--) { \
|
|
||||||
op; \
|
|
||||||
++pixel; \
|
|
||||||
} \
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Vertical line */
|
|
||||||
#define VLINE(type, op, draw_end) \
|
|
||||||
{ \
|
|
||||||
int length; \
|
|
||||||
int pitch = (dst->pitch / dst->format->BytesPerPixel); \
|
|
||||||
type *pixel; \
|
|
||||||
if (y1 <= y2) { \
|
|
||||||
pixel = (type *)dst->pixels + y1 * pitch + x1; \
|
|
||||||
length = draw_end ? (y2-y1+1) : (y2-y1); \
|
|
||||||
} else { \
|
|
||||||
pixel = (type *)dst->pixels + y2 * pitch + x1; \
|
|
||||||
if (!draw_end) { \
|
|
||||||
pixel += pitch; \
|
|
||||||
} \
|
|
||||||
length = draw_end ? (y1-y2+1) : (y1-y2); \
|
|
||||||
} \
|
|
||||||
while (length--) { \
|
|
||||||
op; \
|
|
||||||
pixel += pitch; \
|
|
||||||
} \
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Diagonal line */
|
|
||||||
#define DLINE(type, op, draw_end) \
|
|
||||||
{ \
|
|
||||||
int length; \
|
|
||||||
int pitch = (dst->pitch / dst->format->BytesPerPixel); \
|
|
||||||
type *pixel; \
|
|
||||||
if (y1 <= y2) { \
|
|
||||||
pixel = (type *)dst->pixels + y1 * pitch + x1; \
|
|
||||||
if (x1 <= x2) { \
|
|
||||||
++pitch; \
|
|
||||||
} else { \
|
|
||||||
--pitch; \
|
|
||||||
} \
|
|
||||||
length = (y2-y1); \
|
|
||||||
} else { \
|
|
||||||
pixel = (type *)dst->pixels + y2 * pitch + x2; \
|
|
||||||
if (x2 <= x1) { \
|
|
||||||
++pitch; \
|
|
||||||
} else { \
|
|
||||||
--pitch; \
|
|
||||||
} \
|
|
||||||
if (!draw_end) { \
|
|
||||||
pixel += pitch; \
|
|
||||||
} \
|
|
||||||
length = (y1-y2); \
|
|
||||||
} \
|
|
||||||
if (draw_end) { \
|
|
||||||
++length; \
|
|
||||||
} \
|
|
||||||
while (length--) { \
|
|
||||||
op; \
|
|
||||||
pixel += pitch; \
|
|
||||||
} \
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Bresenham's line algorithm */
|
|
||||||
#define BLINE(x1, y1, x2, y2, op, draw_end) \
|
|
||||||
{ \
|
|
||||||
int i, deltax, deltay, numpixels; \
|
|
||||||
int d, dinc1, dinc2; \
|
|
||||||
int x, xinc1, xinc2; \
|
|
||||||
int y, yinc1, yinc2; \
|
|
||||||
\
|
|
||||||
deltax = ABS(x2 - x1); \
|
|
||||||
deltay = ABS(y2 - y1); \
|
|
||||||
\
|
|
||||||
if (deltax >= deltay) { \
|
|
||||||
numpixels = deltax + 1; \
|
|
||||||
d = (2 * deltay) - deltax; \
|
|
||||||
dinc1 = deltay * 2; \
|
|
||||||
dinc2 = (deltay - deltax) * 2; \
|
|
||||||
xinc1 = 1; \
|
|
||||||
xinc2 = 1; \
|
|
||||||
yinc1 = 0; \
|
|
||||||
yinc2 = 1; \
|
|
||||||
} else { \
|
|
||||||
numpixels = deltay + 1; \
|
|
||||||
d = (2 * deltax) - deltay; \
|
|
||||||
dinc1 = deltax * 2; \
|
|
||||||
dinc2 = (deltax - deltay) * 2; \
|
|
||||||
xinc1 = 0; \
|
|
||||||
xinc2 = 1; \
|
|
||||||
yinc1 = 1; \
|
|
||||||
yinc2 = 1; \
|
|
||||||
} \
|
|
||||||
\
|
|
||||||
if (x1 > x2) { \
|
|
||||||
xinc1 = -xinc1; \
|
|
||||||
xinc2 = -xinc2; \
|
|
||||||
} \
|
|
||||||
if (y1 > y2) { \
|
|
||||||
yinc1 = -yinc1; \
|
|
||||||
yinc2 = -yinc2; \
|
|
||||||
} \
|
|
||||||
\
|
|
||||||
x = x1; \
|
|
||||||
y = y1; \
|
|
||||||
\
|
|
||||||
if (!draw_end) { \
|
|
||||||
--numpixels; \
|
|
||||||
} \
|
|
||||||
for (i = 0; i < numpixels; ++i) { \
|
|
||||||
op(x, y); \
|
|
||||||
if (d < 0) { \
|
|
||||||
d += dinc1; \
|
|
||||||
x += xinc1; \
|
|
||||||
y += yinc1; \
|
|
||||||
} else { \
|
|
||||||
d += dinc2; \
|
|
||||||
x += xinc2; \
|
|
||||||
y += yinc2; \
|
|
||||||
} \
|
|
||||||
} \
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Xiaolin Wu's line algorithm, based on Michael Abrash's implementation */
|
|
||||||
#define WULINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end) \
|
|
||||||
{ \
|
|
||||||
Uint16 ErrorAdj, ErrorAcc; \
|
|
||||||
Uint16 ErrorAccTemp, Weighting; \
|
|
||||||
int DeltaX, DeltaY, Temp, XDir; \
|
|
||||||
unsigned r, g, b, a, inva; \
|
|
||||||
\
|
|
||||||
/* Draw the initial pixel, which is always exactly intersected by \
|
|
||||||
the line and so needs no weighting */ \
|
|
||||||
opaque_op(x1, y1); \
|
|
||||||
\
|
|
||||||
/* Draw the final pixel, which is always exactly intersected by the line \
|
|
||||||
and so needs no weighting */ \
|
|
||||||
if (draw_end) { \
|
|
||||||
opaque_op(x2, y2); \
|
|
||||||
} \
|
|
||||||
\
|
|
||||||
/* Make sure the line runs top to bottom */ \
|
|
||||||
if (y1 > y2) { \
|
|
||||||
Temp = y1; y1 = y2; y2 = Temp; \
|
|
||||||
Temp = x1; x1 = x2; x2 = Temp; \
|
|
||||||
} \
|
|
||||||
DeltaY = y2 - y1; \
|
|
||||||
\
|
|
||||||
if ((DeltaX = x2 - x1) >= 0) { \
|
|
||||||
XDir = 1; \
|
|
||||||
} else { \
|
|
||||||
XDir = -1; \
|
|
||||||
DeltaX = -DeltaX; /* make DeltaX positive */ \
|
|
||||||
} \
|
|
||||||
\
|
|
||||||
/* line is not horizontal, diagonal, or vertical */ \
|
|
||||||
ErrorAcc = 0; /* initialize the line error accumulator to 0 */ \
|
|
||||||
\
|
|
||||||
/* Is this an X-major or Y-major line? */ \
|
|
||||||
if (DeltaY > DeltaX) { \
|
|
||||||
/* Y-major line; calculate 16-bit fixed-point fractional part of a \
|
|
||||||
pixel that X advances each time Y advances 1 pixel, truncating the \
|
|
||||||
result so that we won't overrun the endpoint along the X axis */ \
|
|
||||||
ErrorAdj = ((unsigned long) DeltaX << 16) / (unsigned long) DeltaY; \
|
|
||||||
/* Draw all pixels other than the first and last */ \
|
|
||||||
while (--DeltaY) { \
|
|
||||||
ErrorAccTemp = ErrorAcc; /* remember currrent accumulated error */ \
|
|
||||||
ErrorAcc += ErrorAdj; /* calculate error for next pixel */ \
|
|
||||||
if (ErrorAcc <= ErrorAccTemp) { \
|
|
||||||
/* The error accumulator turned over, so advance the X coord */ \
|
|
||||||
x1 += XDir; \
|
|
||||||
} \
|
|
||||||
y1++; /* Y-major, so always advance Y */ \
|
|
||||||
/* The IntensityBits most significant bits of ErrorAcc give us the \
|
|
||||||
intensity weighting for this pixel, and the complement of the \
|
|
||||||
weighting for the paired pixel */ \
|
|
||||||
Weighting = ErrorAcc >> 8; \
|
|
||||||
{ \
|
|
||||||
a = DRAW_MUL(_a, (Weighting ^ 255)); \
|
|
||||||
r = DRAW_MUL(_r, a); \
|
|
||||||
g = DRAW_MUL(_g, a); \
|
|
||||||
b = DRAW_MUL(_b, a); \
|
|
||||||
inva = (a ^ 0xFF); \
|
|
||||||
blend_op(x1, y1); \
|
|
||||||
} \
|
|
||||||
{ \
|
|
||||||
a = DRAW_MUL(_a, Weighting); \
|
|
||||||
r = DRAW_MUL(_r, a); \
|
|
||||||
g = DRAW_MUL(_g, a); \
|
|
||||||
b = DRAW_MUL(_b, a); \
|
|
||||||
inva = (a ^ 0xFF); \
|
|
||||||
blend_op(x1 + XDir, y1); \
|
|
||||||
} \
|
|
||||||
} \
|
|
||||||
} else { \
|
|
||||||
/* X-major line; calculate 16-bit fixed-point fractional part of a \
|
|
||||||
pixel that Y advances each time X advances 1 pixel, truncating the \
|
|
||||||
result to avoid overrunning the endpoint along the X axis */ \
|
|
||||||
ErrorAdj = ((unsigned long) DeltaY << 16) / (unsigned long) DeltaX; \
|
|
||||||
/* Draw all pixels other than the first and last */ \
|
|
||||||
while (--DeltaX) { \
|
|
||||||
ErrorAccTemp = ErrorAcc; /* remember currrent accumulated error */ \
|
|
||||||
ErrorAcc += ErrorAdj; /* calculate error for next pixel */ \
|
|
||||||
if (ErrorAcc <= ErrorAccTemp) { \
|
|
||||||
/* The error accumulator turned over, so advance the Y coord */ \
|
|
||||||
y1++; \
|
|
||||||
} \
|
|
||||||
x1 += XDir; /* X-major, so always advance X */ \
|
|
||||||
/* The IntensityBits most significant bits of ErrorAcc give us the \
|
|
||||||
intensity weighting for this pixel, and the complement of the \
|
|
||||||
weighting for the paired pixel */ \
|
|
||||||
Weighting = ErrorAcc >> 8; \
|
|
||||||
{ \
|
|
||||||
a = DRAW_MUL(_a, (Weighting ^ 255)); \
|
|
||||||
r = DRAW_MUL(_r, a); \
|
|
||||||
g = DRAW_MUL(_g, a); \
|
|
||||||
b = DRAW_MUL(_b, a); \
|
|
||||||
inva = (a ^ 0xFF); \
|
|
||||||
blend_op(x1, y1); \
|
|
||||||
} \
|
|
||||||
{ \
|
|
||||||
a = DRAW_MUL(_a, Weighting); \
|
|
||||||
r = DRAW_MUL(_r, a); \
|
|
||||||
g = DRAW_MUL(_g, a); \
|
|
||||||
b = DRAW_MUL(_b, a); \
|
|
||||||
inva = (a ^ 0xFF); \
|
|
||||||
blend_op(x1, y1 + 1); \
|
|
||||||
} \
|
|
||||||
} \
|
|
||||||
} \
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifdef AA_LINES
|
|
||||||
#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end) \
|
|
||||||
WULINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end)
|
|
||||||
#else
|
|
||||||
#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end) \
|
|
||||||
BLINE(x1, y1, x2, y2, opaque_op, draw_end)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Define fill rect macro
|
|
||||||
*/
|
|
||||||
|
|
||||||
#define FILLRECT(type, op) \
|
|
||||||
do { \
|
|
||||||
int width = rect->w; \
|
|
||||||
int height = rect->h; \
|
|
||||||
int pitch = (dst->pitch / dst->format->BytesPerPixel); \
|
|
||||||
int skip = pitch - width; \
|
|
||||||
type *pixel = (type *)dst->pixels + rect->y * pitch + rect->x; \
|
|
||||||
while (height--) { \
|
|
||||||
{ int n = (width+3)/4; \
|
|
||||||
switch (width & 3) { \
|
|
||||||
case 0: do { op; pixel++; SDL_FALLTHROUGH; \
|
|
||||||
case 3: op; pixel++; SDL_FALLTHROUGH; \
|
|
||||||
case 2: op; pixel++; SDL_FALLTHROUGH; \
|
|
||||||
case 1: op; pixel++; \
|
|
||||||
} while ( --n > 0 ); \
|
|
||||||
} \
|
|
||||||
} \
|
|
||||||
pixel += skip; \
|
|
||||||
} \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
/* vi: set ts=4 sw=4 expandtab: */
|
|
||||||
|
|
@ -727,12 +727,8 @@ PS2_CreateRenderer(SDL_Window * window, Uint32 flags)
|
||||||
|
|
||||||
gsGlobal = gsKit_init_global_custom(RENDER_QUEUE_OS_POOLSIZE, RENDER_QUEUE_PER_POOLSIZE);
|
gsGlobal = gsKit_init_global_custom(RENDER_QUEUE_OS_POOLSIZE, RENDER_QUEUE_PER_POOLSIZE);
|
||||||
|
|
||||||
gsGlobal->Mode = gsKit_check_rom();
|
gsGlobal->Mode = GS_MODE_NTSC;
|
||||||
if (gsGlobal->Mode == GS_MODE_PAL){
|
gsGlobal->Height = 448;
|
||||||
gsGlobal->Height = 512;
|
|
||||||
} else {
|
|
||||||
gsGlobal->Height = 448;
|
|
||||||
}
|
|
||||||
|
|
||||||
gsGlobal->PSM = GS_PSM_CT24;
|
gsGlobal->PSM = GS_PSM_CT24;
|
||||||
gsGlobal->PSMZ = GS_PSMZ_16S;
|
gsGlobal->PSMZ = GS_PSMZ_16S;
|
||||||
|
|
|
||||||
|
|
@ -1,41 +0,0 @@
|
||||||
/*
|
|
||||||
Simple DirectMedia Layer
|
|
||||||
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
|
|
||||||
|
|
||||||
This software is provided 'as-is', without any express or implied
|
|
||||||
warranty. In no event will the authors be held liable for any damages
|
|
||||||
arising from the use of this software.
|
|
||||||
|
|
||||||
Permission is granted to anyone to use this software for any purpose,
|
|
||||||
including commercial applications, and to alter it and redistribute it
|
|
||||||
freely, subject to the following restrictions:
|
|
||||||
|
|
||||||
1. The origin of this software must not be misrepresented; you must not
|
|
||||||
claim that you wrote the original software. If you use this software
|
|
||||||
in a product, an acknowledgment in the product documentation would be
|
|
||||||
appreciated but is not required.
|
|
||||||
2. Altered source versions must be plainly marked as such, and must not be
|
|
||||||
misrepresented as being the original software.
|
|
||||||
3. This notice may not be removed or altered from any source distribution.
|
|
||||||
*/
|
|
||||||
#include "../../SDL_internal.h"
|
|
||||||
|
|
||||||
#if SDL_VIDEO_DRIVER_PS2
|
|
||||||
|
|
||||||
/* Being a ps2 driver, there's no event stream. We just define stubs for
|
|
||||||
most of the API. */
|
|
||||||
|
|
||||||
#include "../../events/SDL_events_c.h"
|
|
||||||
|
|
||||||
#include "SDL_ps2video.h"
|
|
||||||
#include "SDL_ps2events_c.h"
|
|
||||||
|
|
||||||
void
|
|
||||||
PS2_PumpEvents(_THIS)
|
|
||||||
{
|
|
||||||
/* do nothing. */
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* SDL_VIDEO_DRIVER_PS2 */
|
|
||||||
|
|
||||||
/* vi: set ts=4 sw=4 expandtab: */
|
|
||||||
|
|
@ -1,33 +0,0 @@
|
||||||
/*
|
|
||||||
Simple DirectMedia Layer
|
|
||||||
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
|
|
||||||
|
|
||||||
This software is provided 'as-is', without any express or implied
|
|
||||||
warranty. In no event will the authors be held liable for any damages
|
|
||||||
arising from the use of this software.
|
|
||||||
|
|
||||||
Permission is granted to anyone to use this software for any purpose,
|
|
||||||
including commercial applications, and to alter it and redistribute it
|
|
||||||
freely, subject to the following restrictions:
|
|
||||||
|
|
||||||
1. The origin of this software must not be misrepresented; you must not
|
|
||||||
claim that you wrote the original software. If you use this software
|
|
||||||
in a product, an acknowledgment in the product documentation would be
|
|
||||||
appreciated but is not required.
|
|
||||||
2. Altered source versions must be plainly marked as such, and must not be
|
|
||||||
misrepresented as being the original software.
|
|
||||||
3. This notice may not be removed or altered from any source distribution.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef SDL_ps2events_c_h_
|
|
||||||
#define SDL_ps2events_c_h_
|
|
||||||
|
|
||||||
#include "../../SDL_internal.h"
|
|
||||||
|
|
||||||
#include "SDL_ps2video.h"
|
|
||||||
|
|
||||||
extern void PS2_PumpEvents(_THIS);
|
|
||||||
|
|
||||||
#endif /* SDL_ps2events_c_h_ */
|
|
||||||
|
|
||||||
/* vi: set ts=4 sw=4 expandtab: */
|
|
||||||
|
|
@ -1,85 +0,0 @@
|
||||||
/*
|
|
||||||
Simple DirectMedia Layer
|
|
||||||
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
|
|
||||||
|
|
||||||
This software is provided 'as-is', without any express or implied
|
|
||||||
warranty. In no event will the authors be held liable for any damages
|
|
||||||
arising from the use of this software.
|
|
||||||
|
|
||||||
Permission is granted to anyone to use this software for any purpose,
|
|
||||||
including commercial applications, and to alter it and redistribute it
|
|
||||||
freely, subject to the following restrictions:
|
|
||||||
|
|
||||||
1. The origin of this software must not be misrepresented; you must not
|
|
||||||
claim that you wrote the original software. If you use this software
|
|
||||||
in a product, an acknowledgment in the product documentation would be
|
|
||||||
appreciated but is not required.
|
|
||||||
2. Altered source versions must be plainly marked as such, and must not be
|
|
||||||
misrepresented as being the original software.
|
|
||||||
3. This notice may not be removed or altered from any source distribution.
|
|
||||||
*/
|
|
||||||
#include "../../SDL_internal.h"
|
|
||||||
|
|
||||||
#if SDL_VIDEO_DRIVER_PS2
|
|
||||||
|
|
||||||
#include "../SDL_sysvideo.h"
|
|
||||||
#include "SDL_ps2framebuffer_c.h"
|
|
||||||
|
|
||||||
|
|
||||||
#define PS2_SURFACE "_SDL_PS2Surface"
|
|
||||||
|
|
||||||
int SDL_PS2_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
|
|
||||||
{
|
|
||||||
SDL_Surface *surface;
|
|
||||||
const Uint32 surface_format = SDL_PIXELFORMAT_ABGR8888;
|
|
||||||
int w, h;
|
|
||||||
|
|
||||||
/* Free the old framebuffer surface */
|
|
||||||
SDL_PS2_DestroyWindowFramebuffer(_this, window);
|
|
||||||
|
|
||||||
/* Create a new one */
|
|
||||||
SDL_GetWindowSize(window, &w, &h);
|
|
||||||
surface = SDL_CreateRGBSurfaceWithFormat(0, w, h, 0, surface_format);
|
|
||||||
if (!surface) {
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Save the info and return! */
|
|
||||||
SDL_SetWindowData(window, PS2_SURFACE, surface);
|
|
||||||
*format = surface_format;
|
|
||||||
*pixels = surface->pixels;
|
|
||||||
*pitch = surface->pitch;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
int SDL_PS2_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
|
|
||||||
{
|
|
||||||
static int frame_number;
|
|
||||||
SDL_Surface *surface;
|
|
||||||
|
|
||||||
surface = (SDL_Surface *) SDL_GetWindowData(window, PS2_SURFACE);
|
|
||||||
if (!surface) {
|
|
||||||
return SDL_SetError("Couldn't find ps2 surface for window");
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Send the data to the display */
|
|
||||||
if (SDL_getenv("SDL_VIDEO_PS2_SAVE_FRAMES")) {
|
|
||||||
char file[128];
|
|
||||||
SDL_snprintf(file, sizeof(file), "SDL_window%" SDL_PRIu32 "-%8.8d.bmp",
|
|
||||||
SDL_GetWindowID(window), ++frame_number);
|
|
||||||
SDL_SaveBMP(surface, file);
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
void SDL_PS2_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
|
|
||||||
{
|
|
||||||
SDL_Surface *surface;
|
|
||||||
|
|
||||||
surface = (SDL_Surface *) SDL_SetWindowData(window, PS2_SURFACE, NULL);
|
|
||||||
SDL_FreeSurface(surface);
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* SDL_VIDEO_DRIVER_PS2 */
|
|
||||||
|
|
||||||
/* vi: set ts=4 sw=4 expandtab: */
|
|
||||||
|
|
@ -1,33 +0,0 @@
|
||||||
/*
|
|
||||||
Simple DirectMedia Layer
|
|
||||||
Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
|
|
||||||
|
|
||||||
This software is provided 'as-is', without any express or implied
|
|
||||||
warranty. In no event will the authors be held liable for any damages
|
|
||||||
arising from the use of this software.
|
|
||||||
|
|
||||||
Permission is granted to anyone to use this software for any purpose,
|
|
||||||
including commercial applications, and to alter it and redistribute it
|
|
||||||
freely, subject to the following restrictions:
|
|
||||||
|
|
||||||
1. The origin of this software must not be misrepresented; you must not
|
|
||||||
claim that you wrote the original software. If you use this software
|
|
||||||
in a product, an acknowledgment in the product documentation would be
|
|
||||||
appreciated but is not required.
|
|
||||||
2. Altered source versions must be plainly marked as such, and must not be
|
|
||||||
misrepresented as being the original software.
|
|
||||||
3. This notice may not be removed or altered from any source distribution.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef SDL_ps2framebuffer_c_h_
|
|
||||||
#define SDL_ps2framebuffer_c_h_
|
|
||||||
|
|
||||||
#include "../../SDL_internal.h"
|
|
||||||
|
|
||||||
extern int SDL_PS2_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch);
|
|
||||||
extern int SDL_PS2_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects);
|
|
||||||
extern void SDL_PS2_DestroyWindowFramebuffer(_THIS, SDL_Window * window);
|
|
||||||
|
|
||||||
#endif /* SDL_ps2framebuffer_c_h_ */
|
|
||||||
|
|
||||||
/* vi: set ts=4 sw=4 expandtab: */
|
|
||||||
|
|
@ -44,8 +44,6 @@
|
||||||
#include "../../events/SDL_events_c.h"
|
#include "../../events/SDL_events_c.h"
|
||||||
|
|
||||||
#include "SDL_ps2video.h"
|
#include "SDL_ps2video.h"
|
||||||
#include "SDL_ps2events_c.h"
|
|
||||||
#include "SDL_ps2framebuffer_c.h"
|
|
||||||
#include "SDL_hints.h"
|
#include "SDL_hints.h"
|
||||||
|
|
||||||
/* PS2 driver bootstrap functions */
|
/* PS2 driver bootstrap functions */
|
||||||
|
|
@ -81,13 +79,6 @@ static int PS2_VideoInit(_THIS)
|
||||||
display.driverdata = NULL;
|
display.driverdata = NULL;
|
||||||
SDL_AddDisplayMode(&display, ¤t_mode);
|
SDL_AddDisplayMode(&display, ¤t_mode);
|
||||||
|
|
||||||
/* 16 bpp secondary mode */
|
|
||||||
current_mode.format = SDL_PIXELFORMAT_ABGR1555;
|
|
||||||
display.desktop_mode = current_mode;
|
|
||||||
display.current_mode = current_mode;
|
|
||||||
SDL_AddDisplayMode(&display, ¤t_mode);
|
|
||||||
|
|
||||||
|
|
||||||
SDL_AddVideoDisplay(&display, SDL_FALSE);
|
SDL_AddVideoDisplay(&display, SDL_FALSE);
|
||||||
|
|
||||||
return 1;
|
return 1;
|
||||||
|
|
@ -98,7 +89,12 @@ static void PS2_VideoQuit(_THIS)
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static SDL_VideoDevice *PS2_CreateDevice(int devindex)
|
static void PS2_PumpEvents(_THIS)
|
||||||
|
{
|
||||||
|
/* do nothing. */
|
||||||
|
}
|
||||||
|
|
||||||
|
static SDL_VideoDevice *PS2_CreateDevice(void)
|
||||||
{
|
{
|
||||||
SDL_VideoDevice *device;
|
SDL_VideoDevice *device;
|
||||||
|
|
||||||
|
|
@ -114,10 +110,6 @@ static SDL_VideoDevice *PS2_CreateDevice(int devindex)
|
||||||
device->VideoQuit = PS2_VideoQuit;
|
device->VideoQuit = PS2_VideoQuit;
|
||||||
device->SetDisplayMode = PS2_SetDisplayMode;
|
device->SetDisplayMode = PS2_SetDisplayMode;
|
||||||
device->PumpEvents = PS2_PumpEvents;
|
device->PumpEvents = PS2_PumpEvents;
|
||||||
device->CreateWindowFramebuffer = SDL_PS2_CreateWindowFramebuffer;
|
|
||||||
device->UpdateWindowFramebuffer = SDL_PS2_UpdateWindowFramebuffer;
|
|
||||||
device->DestroyWindowFramebuffer = SDL_PS2_DestroyWindowFramebuffer;
|
|
||||||
|
|
||||||
device->free = PS2_DeleteDevice;
|
device->free = PS2_DeleteDevice;
|
||||||
|
|
||||||
return device;
|
return device;
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue