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 \
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DRAW_SETPIXEL(PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_BLEND_RGBA \
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DRAW_SETPIXEL_BLEND(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
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PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_ADD_RGBA \
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DRAW_SETPIXEL_ADD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
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PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_MOD_RGBA \
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DRAW_SETPIXEL_MOD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
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PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
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#define DRAW_SETPIXEL_MUL_RGBA \
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DRAW_SETPIXEL_MUL(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
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PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
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#define DRAW_SETPIXELXY4_RGBA(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGBA)
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#define DRAW_SETPIXELXY4_BLEND_RGBA(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGBA)
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#define DRAW_SETPIXELXY4_ADD_RGBA(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGBA)
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#define DRAW_SETPIXELXY4_MOD_RGBA(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGBA)
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#define DRAW_SETPIXELXY4_MUL_RGBA(x, y) \
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DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGBA)
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/*
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* Define line drawing macro
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*/
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#define ABS(_x) ((_x) < 0 ? -(_x) : (_x))
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/* Horizontal line */
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#define HLINE(type, op, draw_end) \
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{ \
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int length; \
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int pitch = (dst->pitch / dst->format->BytesPerPixel); \
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type *pixel; \
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if (x1 <= x2) { \
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pixel = (type *)dst->pixels + y1 * pitch + x1; \
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length = draw_end ? (x2-x1+1) : (x2-x1); \
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} else { \
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pixel = (type *)dst->pixels + y1 * pitch + x2; \
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if (!draw_end) { \
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++pixel; \
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} \
|
||||
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->Mode = gsKit_check_rom();
|
||||
if (gsGlobal->Mode == GS_MODE_PAL){
|
||||
gsGlobal->Height = 512;
|
||||
} else {
|
||||
gsGlobal->Mode = GS_MODE_NTSC;
|
||||
gsGlobal->Height = 448;
|
||||
}
|
||||
|
||||
gsGlobal->PSM = GS_PSM_CT24;
|
||||
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 "SDL_ps2video.h"
|
||||
#include "SDL_ps2events_c.h"
|
||||
#include "SDL_ps2framebuffer_c.h"
|
||||
#include "SDL_hints.h"
|
||||
|
||||
/* PS2 driver bootstrap functions */
|
||||
|
|
@ -81,13 +79,6 @@ static int PS2_VideoInit(_THIS)
|
|||
display.driverdata = NULL;
|
||||
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);
|
||||
|
||||
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;
|
||||
|
||||
|
|
@ -114,10 +110,6 @@ static SDL_VideoDevice *PS2_CreateDevice(int devindex)
|
|||
device->VideoQuit = PS2_VideoQuit;
|
||||
device->SetDisplayMode = PS2_SetDisplayMode;
|
||||
device->PumpEvents = PS2_PumpEvents;
|
||||
device->CreateWindowFramebuffer = SDL_PS2_CreateWindowFramebuffer;
|
||||
device->UpdateWindowFramebuffer = SDL_PS2_UpdateWindowFramebuffer;
|
||||
device->DestroyWindowFramebuffer = SDL_PS2_DestroyWindowFramebuffer;
|
||||
|
||||
device->free = PS2_DeleteDevice;
|
||||
|
||||
return device;
|
||||
|
|
|
|||
Loading…
Reference in New Issue