Mercurial > hg > dmlib
annotate dmlib.h @ 232:79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
blitting functions.
author | Matti Hamalainen <ccr@tnsp.org> |
---|---|
date | Mon, 08 Oct 2012 09:01:05 +0300 |
parents | 0b2866e25bf1 |
children | a2abd0b991b6 |
rev | line source |
---|---|
0 | 1 /* |
2 * DMLib | |
3 * -- Main header file | |
4 * Programmed and designed by Matti 'ccr' Hamalainen | |
5 * (C) Copyright 2011 Tecnic Software productions (TNSP) | |
6 */ | |
7 #ifndef DMLIB_H | |
8 #define DMLIB_H | |
9 | |
10 #include <SDL.h> | |
11 #include <stdarg.h> | |
12 | |
13 #ifdef DM_USE_ASSERTS | |
14 #include <assert.h> | |
15 #else | |
16 #define assert(NEXPR) // stub | |
17 #endif | |
18 | |
19 #ifdef __cplusplus | |
20 extern "C" { | |
21 #endif | |
22 | |
23 // Defaults | |
24 //#define DM_PROG_AUTHOR "By Matti 'ccr' Hmlinen (C) Copyright 2012 TNSP" | |
25 //#define DM_PROG_LICENSE "This software is licensed under GNU GPL version 2" | |
26 | |
27 #define DM_PROG_AUTHOR "" | |
28 #define DM_PROG_LICENSE "" | |
29 | |
30 /* Error codes | |
31 */ | |
32 enum { | |
33 // General error codes | |
34 DMERR_OK = 0, | |
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
35 DMERR_PROGRESS, // Status OK, but operation in progress |
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
36 |
0 | 37 DMERR_FOPEN, |
38 DMERR_FREAD, | |
39 DMERR_FWRITE, | |
40 DMERR_FSEEK, | |
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
41 DMERR_NOT_FOUND, // Resource/data not found |
0 | 42 |
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
43 DMERR_INVALID_DATA, // Some data was invalid |
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
44 DMERR_MALLOC, // Memory allocation failure |
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
45 DMERR_ALREADY_INIT, // Resource has already been initialized |
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
46 DMERR_INIT_FAIL, // General initialization failure |
0 | 47 DMERR_INVALID_ARGS, |
48 | |
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
49 DMERR_NULLPTR, // NULL pointer specified in critical argument |
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
19
diff
changeset
|
50 DMERR_NOT_SUPPORTED,// Operation not supported |
0 | 51 DMERR_OUT_OF_DATA, |
52 DMERR_EXTRA_DATA, | |
53 DMERR_BOUNDS, | |
54 | |
55 // PACK-file subsystem | |
56 DMERR_NOTPACK, | |
57 DMERR_VERSION, | |
58 DMERR_INVALID, | |
59 DMERR_COMPRESSION, | |
60 }; | |
61 | |
62 | |
63 // Resource management defines | |
64 #define DMRES_NAME_LEN 32 | |
65 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
66 #define DMRES_DATA_PATH "DATA/" // Sub-directory path | |
67 #define DMRES_RES_FILE "res.txt" // Resource data file | |
68 | |
69 | |
70 // Mutexes | |
71 #define DMMutex SDL_mutex | |
72 #define dmCreateMutex() SDL_CreateMutex() | |
73 #define dmDestroyMutex(x) SDL_DestroyMutex(x) | |
74 #define dmMutexLock(x) SDL_mutexP(x) | |
75 #define dmMutexUnlock(x) SDL_mutexV(x) | |
76 | |
77 | |
78 /* Define a boolean type | |
79 */ | |
80 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
81 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
82 #endif | |
83 | |
84 #ifndef BOOL | |
85 #ifdef bool | |
86 #define BOOL bool | |
87 #else | |
88 #define BOOL int | |
89 #endif | |
90 #endif | |
91 | |
92 | |
93 /* Fixed point math type | |
94 */ | |
95 typedef union | |
96 { | |
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
97 Sint64 dw; |
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
98 Sint32 w[2]; |
0 | 99 } DMFixedPoint; |
100 | |
101 | |
102 typedef union | |
103 { | |
36
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
104 Sint32 dw; |
f3407a58e01e
Change DMFixedPoint types and appropriate JSS functions back to using signed
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
105 Sint16 w[2]; |
0 | 106 } DMFixedPoint32; |
107 | |
108 | |
109 /* Macros for fixed point math | |
110 */ | |
111 #if __GNUC__ >= 3 | |
112 # define FP_SET(a, k) a.dw = k ## ULL | |
113 #else | |
114 # define FP_SET(a, k) a.dw = k | |
115 #endif | |
116 | |
138
459a1be2bd0f
A minor improvement to FP_CONV() fixed point macro.
Matti Hamalainen <ccr@tnsp.org>
parents:
118
diff
changeset
|
117 #define FP_CONV(a, k) a.dw = (k) |
0 | 118 |
119 #ifndef SDL_BYTEORDER | |
120 # error Undefined byteorder! | |
121 #endif | |
122 | |
123 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
124 # define FP_SETH(a, k) a.w[0] = (k) | |
125 # define FP_SETL(a, k) a.w[1] = (k) | |
126 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
127 # define FP_GETH(a) a.w[0] | |
128 # define FP_GETL(a) a.w[1] | |
129 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
130 # define FP_SETH(a, k) a.w[1] = (k) | |
131 # define FP_SETL(a, k) a.w[0] = (k) | |
132 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
133 # define FP_GETH(a) a.w[1] | |
134 # define FP_GETL(a) a.w[0] | |
135 #else | |
136 # error Unsupported byte order! | |
137 #endif | |
138 | |
139 #define FP_PRINTF(a) printf("%.8x:%.8x", FP_GETH(a), FP_GETL(a)) | |
140 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH(a), FP_GETL(a)) | |
141 | |
142 #define FP_ADD(a, b) a.dw += b.dw | |
143 #define FP_SUB(a, b) a.dw -= b.dw | |
144 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
145 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
146 #define FP_DIV(a, b) a.dw /= b.dw | |
147 #define FP_MUL(a, b) a.dw *= b.dw | |
148 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
149 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
150 | |
151 | |
152 /* Miscellaneous types | |
153 */ | |
154 typedef struct | |
155 { | |
156 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
157 Uint8 a,g,b,r; | |
158 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
159 Uint8 r,g,b,a; | |
160 #endif | |
161 } DMRGBA32; | |
162 | |
163 | |
164 typedef float DMFloat; | |
165 | |
166 | |
118
c36e0316de9f
Move DM_SWAP() macro to dmlib.h
Matti Hamalainen <ccr@tnsp.org>
parents:
108
diff
changeset
|
167 // Macro for swapping two lvalues of same type |
c36e0316de9f
Move DM_SWAP() macro to dmlib.h
Matti Hamalainen <ccr@tnsp.org>
parents:
108
diff
changeset
|
168 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
c36e0316de9f
Move DM_SWAP() macro to dmlib.h
Matti Hamalainen <ccr@tnsp.org>
parents:
108
diff
changeset
|
169 |
c36e0316de9f
Move DM_SWAP() macro to dmlib.h
Matti Hamalainen <ccr@tnsp.org>
parents:
108
diff
changeset
|
170 |
0 | 171 /* Drawing modes used by blitting and some other functions. |
172 */ | |
173 enum | |
174 { | |
175 DMD_NONE = 0x0000, | |
176 DMD_TRANSPARENT = 0x0001, | |
177 DMD_SATURATE = 0x0002, | |
178 | |
179 DMD_ANTIALIAS = 0x0004, | |
180 | |
181 DMD_NMODES = 6 | |
182 }; | |
183 | |
184 | |
185 // Available bitdepths. Not all functions may support every one of these. | |
186 enum | |
187 { | |
188 DMD_8BIT = 0, | |
189 DMD_32BIT, | |
190 | |
191 DMD_NBITDEPTHS | |
192 }; | |
193 | |
194 | |
195 static inline int dmBitsPerPixel2Index(int bpp) | |
196 { | |
197 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
198 } | |
199 | |
200 | |
201 /* Generic parameter interpolation | |
202 */ | |
203 #define DMM_S_CURVE(t) ((t) * (t) * (3.0f - 2.0f * (t))) | |
204 #define DMM_LERP(t, a, b) ((a) + (t) * ((b) - (a))) | |
205 | |
206 typedef struct | |
207 { | |
208 DMFloat start, end, nsteps; | |
209 } DMLerpContext; | |
210 | |
211 | |
212 void dmLerpInit(DMLerpContext *ctx, DMFloat start, DMFloat end, DMFloat nsteps); | |
108
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
213 DMFloat dmCatmullRom(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
214 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
215 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
216 static inline DMFloat dmClamp10(const DMFloat a) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
217 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
218 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
219 } |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
220 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
221 |
153
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
222 static inline int dmClamp(const int v, const int min, const int max) |
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
223 { |
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
224 return (v < min ? min : (v > max ? max : v)); |
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
225 } |
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
226 |
0b2866e25bf1
Add dmClamp(value, min, max) for clamping integer values.
Matti Hamalainen <ccr@tnsp.org>
parents:
150
diff
changeset
|
227 |
108
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
228 static inline DMFloat dmLerpSCurve(DMLerpContext *ctx, const DMFloat step) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
229 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
230 const DMFloat n = step / ctx->nsteps; |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
231 const DMFloat v = DMM_S_CURVE(n); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
232 return DMM_LERP(v, ctx->start, ctx->end); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
233 } |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
234 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
235 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
236 static inline DMFloat dmLerpSCurveClamp(DMLerpContext *ctx, const DMFloat step) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
237 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
238 const DMFloat n = dmClamp10(step / ctx->nsteps); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
239 const DMFloat v = DMM_S_CURVE(n); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
240 return DMM_LERP(v, ctx->start, ctx->end); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
241 } |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
242 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
243 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
244 static inline DMFloat dmLerp1(DMLerpContext *ctx, const DMFloat step) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
245 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
246 const DMFloat v = step / ctx->nsteps; |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
247 return DMM_LERP(v, ctx->start, ctx->end); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
248 } |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
249 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
250 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
251 static inline DMFloat dmLerp1Clamp(DMLerpContext *ctx, const DMFloat step) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
252 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
253 const DMFloat v = dmClamp10(step / ctx->nsteps); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
254 return DMM_LERP(v, ctx->start, ctx->end); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
255 } |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
256 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
257 |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
258 static inline DMFloat dmCatmullRomClamp(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3) |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
259 { |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
260 return dmCatmullRom(dmClamp10(t), p0, p1, p2, p3); |
72813cece1ba
Move some lerp functions to the header as static inline functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
106
diff
changeset
|
261 } |
0 | 262 |
263 | |
264 /* Perlin noise | |
265 */ | |
266 void dmPerlinInit(void); | |
267 DMFloat dmPerlinNoise2D(DMFloat x, DMFloat y, DMFloat alpha, DMFloat beta, int n); | |
268 | |
269 | |
270 /* Arbitrary line drawing | |
271 */ | |
272 #ifdef DM_GFX_LINES | |
232
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
273 #define DM_HEADER |
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
274 #include "dmlinefunc.h" |
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
275 #undef DM_HEADER |
0 | 276 #endif |
277 | |
95
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
278 |
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
279 /* Various blitting functions |
0 | 280 */ |
281 #ifdef DM_GFX_BLITS | |
282 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
283 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
284 int dmScaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst, int mode); | |
19
10f58ff516b3
Add function prototypes for two special case scaled blit functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
285 |
95
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
286 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
287 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
288 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
289 |
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
290 #define DM_HEADER |
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
291 #include "dmblitfunc.h" |
79dac918c81e
Modularize line clipping etc. a lot, and export all line drawing and
Matti Hamalainen <ccr@tnsp.org>
parents:
153
diff
changeset
|
292 #undef DM_HEADER |
0 | 293 #endif |
294 | |
95
0430f484641b
Add unscaled blitting functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
90
diff
changeset
|
295 |
0 | 296 /* Misc functions |
297 */ | |
298 #ifdef DM_GFX_MISC | |
299 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); | |
300 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
301 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
150
e147c07e41cb
Add dmDrawBox3D() and dmFillBox3D().
Matti Hamalainen <ccr@tnsp.org>
parents:
138
diff
changeset
|
302 |
e147c07e41cb
Add dmDrawBox3D() and dmFillBox3D().
Matti Hamalainen <ccr@tnsp.org>
parents:
138
diff
changeset
|
303 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
e147c07e41cb
Add dmDrawBox3D() and dmFillBox3D().
Matti Hamalainen <ccr@tnsp.org>
parents:
138
diff
changeset
|
304 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
e147c07e41cb
Add dmDrawBox3D() and dmFillBox3D().
Matti Hamalainen <ccr@tnsp.org>
parents:
138
diff
changeset
|
305 |
90
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
306 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
307 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
308 { |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
309 SDL_FillRect(screen, NULL, col); |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
310 } |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
311 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
312 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
313 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
314 { |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
315 return SDL_MapRGB(screen->format, r, g, b); |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
316 } |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
317 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
318 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
319 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
320 { |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
321 return SDL_MapRGBA(screen->format, r, g, b, a); |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
322 } |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
323 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
324 |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
325 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
326 { |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
327 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
1ab3fd8b9afc
Move some very tiny gfx functions to the dmlib header as static inline ones.
Matti Hamalainen <ccr@tnsp.org>
parents:
60
diff
changeset
|
328 } |
0 | 329 #endif |
330 | |
331 | |
332 /* Global variables | |
333 */ | |
334 extern char *dmProgName, | |
335 *dmProgDesc, | |
336 *dmProgVersion, | |
337 *dmProgAuthor, | |
338 *dmProgLicense; | |
339 | |
340 extern int dmVerbosity; | |
341 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
342 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
343 | |
344 void dmMsgVA(int level, const char *fmt, va_list ap); | |
345 void dmMsg(int level, const char *fmt, ...); | |
346 void dmPrintVA(int level, const char *fmt, va_list ap); | |
347 void dmPrint(int level, const char *fmt, ...); | |
348 void dmErrorVA(const char *fmt, va_list); | |
349 void dmError(const char *fmt, ...); | |
350 | |
351 void * dmMalloc(size_t); | |
352 void * dmMalloc0(size_t); | |
353 void * dmRealloc(void *, size_t); | |
354 void * dmCalloc(size_t, size_t); | |
355 void dmFree(void *); | |
356 | |
357 BOOL dmGetIntVal(const char *s, int *i); | |
358 | |
359 int dmGetErrno(); | |
360 const char *dmErrorStr(int error); | |
361 | |
362 char * dm_strdup(const char *); | |
363 char * dm_strdup_vprintf(const char *, va_list); | |
364 char * dm_strdup_printf(const char *, ...); | |
365 | |
366 | |
367 /* Endianess swapping macros | |
368 */ | |
369 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ | |
370 (Uint16) ((Uint16) (value) >> 8) | \ | |
371 (Uint16) ((Uint16) (value) << 8)) ) | |
372 | |
373 | |
374 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ | |
375 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ | |
376 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
377 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
378 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
379 | |
380 #ifdef DM_HAVE_64BIT | |
381 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ | |
382 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
383 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
384 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
385 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
386 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
387 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
388 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
389 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) | |
390 #endif | |
391 | |
392 /* Macros that swap only when needed ... | |
393 */ | |
394 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
395 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) | |
396 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
397 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
398 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
399 | |
400 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) | |
401 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
402 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
403 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
404 | |
405 # ifdef DM_HAVE_64BIT | |
406 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
407 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) | |
408 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) | |
409 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) | |
410 # endif | |
411 | |
412 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
413 | |
414 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) | |
415 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
416 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
417 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
418 | |
419 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) | |
420 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
421 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
422 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
423 | |
424 # ifdef DM_HAVE_64BIT | |
425 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) | |
426 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) | |
427 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) | |
428 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) | |
429 # endif | |
430 #endif | |
431 | |
432 | |
433 #ifdef __cplusplus | |
434 } | |
435 #endif | |
436 #endif // DMLIB_H |