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comparison dmscaledblit.h @ 85:c257d73cf790

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Rename some macros.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 02 Oct 2012 10:23:42 +0300
parents d9251dd496ce
children baf72a99d5ee
comparison
equal deleted inserted replaced
84:35db15881923 85:c257d73cf790
3 * -- Sprite / surface blitting function template 3 * -- Sprite / surface blitting function template
4 * Programmed and designed by Matti 'ccr' Hamalainen 4 * Programmed and designed by Matti 'ccr' Hamalainen
5 * (C) Copyright 2011-2012 Tecnic Software productions (TNSP) 5 * (C) Copyright 2011-2012 Tecnic Software productions (TNSP)
6 */ 6 */
7 7
8 int DM_SCALED_NAME (SDL_Surface *src, 8 int DM_BLITFUNC_NAME (SDL_Surface *src,
9 const int x0, const int y0, 9 const int x0, const int y0,
10 const int dwidth, const int dheight, 10 const int dwidth, const int dheight,
11 SDL_Surface *dst 11 SDL_Surface *dst
12 #ifdef DM_SCALED_ARGS 12 #ifdef DM_BLITFUNC_ARGS
13 DM_SCALED_ARGS 13 DM_BLITFUNC_ARGS
14 #endif 14 #endif
15 ) 15 )
16 { 16 {
17 int yc; 17 int yc;
18 DMFixedPoint32 xv, yv, dx, dy; 18 DMFixedPoint32 xv, yv, dx, dy;
19 DMQValue xr, yr; 19 DMQValue xr, yr;
20 20
21 #ifdef DM_SCALED_VARS 21 #ifdef DM_BLITFUNC_VARS
22 DM_SCALED_VARS 22 DM_BLITFUNC_VARS
23 #endif 23 #endif
24 24
25 // Clip coordinates 25 // Clip coordinates
26 if (dmClipCoord(&xr, x0, src->w, dwidth, 26 if (dmClipCoord(&xr, x0, src->w, dwidth,
27 dst->clip_rect.x, dst->clip_rect.x + dst->clip_rect.w) 27 dst->clip_rect.x, dst->clip_rect.x + dst->clip_rect.w)
28 || 28 ||
29 dmClipCoord(&yr, y0, src->h, dheight, 29 dmClipCoord(&yr, y0, src->h, dheight,
30 dst->clip_rect.y, dst->clip_rect.y + dst->clip_rect.h)) 30 dst->clip_rect.y, dst->clip_rect.y + dst->clip_rect.h))
31 return -1; 31 return -1;
32 32
33 #ifdef DM_SCALED_INIT 33 #ifdef DM_BLITFUNC_INIT
34 DM_SCALED_INIT 34 DM_BLITFUNC_INIT
35 #endif 35 #endif
36 36
37 // Calculate "final" initial source bitmap offsets 37 // Calculate "final" initial source bitmap offsets
38 FP_CONV(dy, yr.voffs); 38 FP_CONV(dy, yr.voffs);
39 FP_MUL_R(yv, dy, yr.vdelta); 39 FP_MUL_R(yv, dy, yr.vdelta);
40 40
41 FP_CONV(dx, xr.voffs); 41 FP_CONV(dx, xr.voffs);
42 FP_MUL_R(dx, dx, xr.vdelta); 42 FP_MUL_R(dx, dx, xr.vdelta);
43 43
44 // Take pitch into account 44 // Take pitch into account
45 const int xadd = xr.vadd - dst->clip_rect.w + dst->clip_rect.x + (dst->pitch / DM_SCALED_DST_BYTES); 45 const int xadd = xr.vadd - dst->clip_rect.w + dst->clip_rect.x + (dst->pitch / DM_BLITFUNC_DST_BYTES);
46 46
47 // Blit scaled 47 // Blit scaled
48 DM_SCALED_DST_TYPE * dp = ((DM_SCALED_DST_TYPE *) dst->pixels) + (yr.v0 * dst->pitch) / DM_SCALED_DST_BYTES + xr.v0; 48 DM_BLITFUNC_DST_TYPE * dp = ((DM_BLITFUNC_DST_TYPE *) dst->pixels) + (yr.v0 * dst->pitch) / DM_BLITFUNC_DST_BYTES + xr.v0;
49 for (yc = yr.v0; yc < yr.v1; yc++) 49 for (yc = yr.v0; yc < yr.v1; yc++)
50 { 50 {
51 const DM_SCALED_SRC_TYPE * sp = ((DM_SCALED_SRC_TYPE *) src->pixels) + (FP_GETH(yv) * src->pitch) / DM_SCALED_SRC_BYTES; 51 const DM_BLITFUNC_SRC_TYPE * sp = ((DM_BLITFUNC_SRC_TYPE *) src->pixels) + (FP_GETH(yv) * src->pitch) / DM_BLITFUNC_SRC_BYTES;
52 int xc; 52 int xc;
53 53
54 #ifdef DM_SCALED_INNER_INIT 54 #ifdef DM_BLITFUNC_INNER_INIT
55 DM_SCALED_INNER_INIT 55 DM_BLITFUNC_INNER_INIT
56 #endif 56 #endif
57 57
58 for (xv.dw = dx.dw, xc = xr.v0; xc < xr.v1; xc++) 58 for (xv.dw = dx.dw, xc = xr.v0; xc < xr.v1; xc++)
59 { 59 {
60 DM_SCALED_INNER 60 DM_BLITFUNC_INNER
61 FP_ADD(xv, xr.vdelta); 61 FP_ADD(xv, xr.vdelta);
62 } 62 }
63 FP_ADD(yv, yr.vdelta); 63 FP_ADD(yv, yr.vdelta);
64 dp += xadd; 64 dp += xadd;
65 } 65 }
66 66
67 #ifdef DM_SCALED_FINISH 67 #ifdef DM_BLITFUNC_FINISH
68 DM_SCALED_FINISH 68 DM_BLITFUNC_FINISH
69 #endif 69 #endif
70 70
71 return 0; 71 return 0;
72 } 72 }
73 73
74 74
75 #undef DM_SCALED_NAME 75 #undef DM_BLITFUNC_NAME
76 #undef DM_SCALED_ARGS 76 #undef DM_BLITFUNC_ARGS
77 #undef DM_SCALED_SRC_BYTES 77 #undef DM_BLITFUNC_SRC_BYTES
78 #undef DM_SCALED_DST_BYTES 78 #undef DM_BLITFUNC_DST_BYTES
79 #undef DM_SCALED_SRC_TYPE 79 #undef DM_BLITFUNC_SRC_TYPE
80 #undef DM_SCALED_DST_TYPE 80 #undef DM_BLITFUNC_DST_TYPE
81 #undef DM_SCALED_VARS 81 #undef DM_BLITFUNC_VARS
82 #undef DM_SCALED_INIT 82 #undef DM_BLITFUNC_INIT
83 #undef DM_SCALED_INNER_INIT 83 #undef DM_BLITFUNC_INNER_INIT
84 #undef DM_SCALED_INNER 84 #undef DM_BLITFUNC_INNER
85 #undef DM_SCALED_FINISH 85 #undef DM_BLITFUNC_FINISH