|
sl@0
|
1 |
/* Copyright (c) 2009-2010 The Khronos Group Inc.
|
|
sl@0
|
2 |
* Portions copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies)
|
|
sl@0
|
3 |
*
|
|
sl@0
|
4 |
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
sl@0
|
5 |
* copy of this software and/or associated documentation files (the
|
|
sl@0
|
6 |
* "Materials"), to deal in the Materials without restriction, including
|
|
sl@0
|
7 |
* without limitation the rights to use, copy, modify, merge, publish,
|
|
sl@0
|
8 |
* distribute, sublicense, and/or sell copies of the Materials, and to
|
|
sl@0
|
9 |
* permit persons to whom the Materials are furnished to do so, subject to
|
|
sl@0
|
10 |
* the following conditions:
|
|
sl@0
|
11 |
*
|
|
sl@0
|
12 |
* The above copyright notice and this permission notice shall be included
|
|
sl@0
|
13 |
* in all copies or substantial portions of the Materials.
|
|
sl@0
|
14 |
*
|
|
sl@0
|
15 |
* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
sl@0
|
16 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
sl@0
|
17 |
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
sl@0
|
18 |
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
sl@0
|
19 |
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
sl@0
|
20 |
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
sl@0
|
21 |
* MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
|
sl@0
|
22 |
*/
|
|
sl@0
|
23 |
|
|
sl@0
|
24 |
#ifdef __cplusplus
|
|
sl@0
|
25 |
extern "C"
|
|
sl@0
|
26 |
{
|
|
sl@0
|
27 |
#endif
|
|
sl@0
|
28 |
|
|
sl@0
|
29 |
#include <string.h>
|
|
sl@0
|
30 |
#include <stdlib.h>
|
|
sl@0
|
31 |
#include <stdio.h>
|
|
sl@0
|
32 |
#include <math.h>
|
|
sl@0
|
33 |
|
|
sl@0
|
34 |
#include "owfobject.h"
|
|
sl@0
|
35 |
#include "owfimage.h"
|
|
sl@0
|
36 |
#include "owfutils.h"
|
|
sl@0
|
37 |
#include "owfmemory.h"
|
|
sl@0
|
38 |
#include "owfdebug.h"
|
|
sl@0
|
39 |
#include "owfdisplaycontextgeneral.h"
|
|
sl@0
|
40 |
|
|
sl@0
|
41 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
42 |
#define roundSubPixel(p) ((OWFuint32)((p) + 0.5f))
|
|
sl@0
|
43 |
#else
|
|
sl@0
|
44 |
#define roundSubPixel(p) (p)
|
|
sl@0
|
45 |
#endif
|
|
sl@0
|
46 |
|
|
sl@0
|
47 |
|
|
sl@0
|
48 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
49 |
OWF_API_CALL void
|
|
sl@0
|
50 |
OWF_IMAGE_Ctor(void* self)
|
|
sl@0
|
51 |
{
|
|
sl@0
|
52 |
DPRINT(("OWF_IMAGE_Ctor"));
|
|
sl@0
|
53 |
|
|
sl@0
|
54 |
self = self;
|
|
sl@0
|
55 |
}
|
|
sl@0
|
56 |
|
|
sl@0
|
57 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
58 |
OWF_API_CALL void
|
|
sl@0
|
59 |
OWF_IMAGE_Dtor(void* self)
|
|
sl@0
|
60 |
{
|
|
sl@0
|
61 |
OWF_IMAGE* image;
|
|
sl@0
|
62 |
|
|
sl@0
|
63 |
DPRINT(("OWF_IMAGE_Dtor"));
|
|
sl@0
|
64 |
|
|
sl@0
|
65 |
image = (OWF_IMAGE*)self;
|
|
sl@0
|
66 |
|
|
sl@0
|
67 |
if (image && image->data)
|
|
sl@0
|
68 |
{
|
|
sl@0
|
69 |
if (!image->foreign)
|
|
sl@0
|
70 |
{
|
|
sl@0
|
71 |
OWF_Image_FreeData(0, &image->data);
|
|
sl@0
|
72 |
}
|
|
sl@0
|
73 |
}
|
|
sl@0
|
74 |
|
|
sl@0
|
75 |
if (image)
|
|
sl@0
|
76 |
{
|
|
sl@0
|
77 |
memset(image, 0, sizeof(OWF_IMAGE));
|
|
sl@0
|
78 |
}
|
|
sl@0
|
79 |
}
|
|
sl@0
|
80 |
|
|
sl@0
|
81 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
82 |
static OWFfloat
|
|
sl@0
|
83 |
NonLinear(OWFfloat x)
|
|
sl@0
|
84 |
{
|
|
sl@0
|
85 |
if (x <= 0.00304f)
|
|
sl@0
|
86 |
{
|
|
sl@0
|
87 |
return 12.92f * x;
|
|
sl@0
|
88 |
}
|
|
sl@0
|
89 |
return 1.0556f * pow(x, 1.f/2.4f) - 0.0556f;
|
|
sl@0
|
90 |
}
|
|
sl@0
|
91 |
|
|
sl@0
|
92 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
93 |
static OWFfloat
|
|
sl@0
|
94 |
Linear(OWFfloat x)
|
|
sl@0
|
95 |
{
|
|
sl@0
|
96 |
if (x <= 0.03928)
|
|
sl@0
|
97 |
{
|
|
sl@0
|
98 |
return x / 12.92f;
|
|
sl@0
|
99 |
}
|
|
sl@0
|
100 |
return pow((x + 0.0556f) / 1.0556f, 2.4f);
|
|
sl@0
|
101 |
}
|
|
sl@0
|
102 |
|
|
sl@0
|
103 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
104 |
OWF_API_CALL void
|
|
sl@0
|
105 |
OWF_Image_NonLinearizeData(OWF_IMAGE* image)\
|
|
sl@0
|
106 |
{
|
|
sl@0
|
107 |
OWFpixel* ptr;
|
|
sl@0
|
108 |
OWFint count;
|
|
sl@0
|
109 |
|
|
sl@0
|
110 |
DPRINT(("OWF_Image_NonLinearizeData"));
|
|
sl@0
|
111 |
|
|
sl@0
|
112 |
OWF_ASSERT(image != NULL && image->data != NULL);
|
|
sl@0
|
113 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
114 |
|
|
sl@0
|
115 |
if (!image->format.linear)
|
|
sl@0
|
116 |
{
|
|
sl@0
|
117 |
return;
|
|
sl@0
|
118 |
}
|
|
sl@0
|
119 |
|
|
sl@0
|
120 |
ptr = (OWFpixel*) image->data;
|
|
sl@0
|
121 |
count = image->width * image->height;
|
|
sl@0
|
122 |
|
|
sl@0
|
123 |
while (count > 0)
|
|
sl@0
|
124 |
{
|
|
sl@0
|
125 |
ptr->color.red = (OWFsubpixel) NonLinear(ptr->color.red /
|
|
sl@0
|
126 |
OWF_RED_MAX_VALUE) * OWF_RED_MAX_VALUE;
|
|
sl@0
|
127 |
ptr->color.green = (OWFsubpixel) NonLinear(ptr->color.green /
|
|
sl@0
|
128 |
OWF_GREEN_MAX_VALUE) * OWF_GREEN_MAX_VALUE;
|
|
sl@0
|
129 |
ptr->color.blue = (OWFsubpixel) NonLinear(ptr->color.blue /
|
|
sl@0
|
130 |
OWF_BLUE_MAX_VALUE) * OWF_BLUE_MAX_VALUE;
|
|
sl@0
|
131 |
|
|
sl@0
|
132 |
--count;
|
|
sl@0
|
133 |
ptr++;
|
|
sl@0
|
134 |
}
|
|
sl@0
|
135 |
|
|
sl@0
|
136 |
image->format.linear = OWF_FALSE;
|
|
sl@0
|
137 |
}
|
|
sl@0
|
138 |
|
|
sl@0
|
139 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
140 |
OWF_API_CALL void
|
|
sl@0
|
141 |
OWF_Image_LinearizeData(OWF_IMAGE* image)
|
|
sl@0
|
142 |
{
|
|
sl@0
|
143 |
OWFpixel* ptr;
|
|
sl@0
|
144 |
OWFuint count;
|
|
sl@0
|
145 |
|
|
sl@0
|
146 |
DPRINT(("OWF_Image_LinearizeData"));
|
|
sl@0
|
147 |
|
|
sl@0
|
148 |
OWF_ASSERT(image != NULL && image->data != NULL);
|
|
sl@0
|
149 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
150 |
|
|
sl@0
|
151 |
if (image->format.linear)
|
|
sl@0
|
152 |
{
|
|
sl@0
|
153 |
return;
|
|
sl@0
|
154 |
}
|
|
sl@0
|
155 |
|
|
sl@0
|
156 |
ptr = (OWFpixel*) image->data;
|
|
sl@0
|
157 |
count = image->width * image->height;
|
|
sl@0
|
158 |
|
|
sl@0
|
159 |
while (count > 0)
|
|
sl@0
|
160 |
{
|
|
sl@0
|
161 |
ptr->color.red = (OWFsubpixel) Linear(ptr->color.red /
|
|
sl@0
|
162 |
OWF_RED_MAX_VALUE) * OWF_RED_MAX_VALUE;
|
|
sl@0
|
163 |
ptr->color.green = (OWFsubpixel) Linear(ptr->color.green /
|
|
sl@0
|
164 |
OWF_GREEN_MAX_VALUE) * OWF_GREEN_MAX_VALUE;
|
|
sl@0
|
165 |
ptr->color.blue = (OWFsubpixel) Linear(ptr->color.blue /
|
|
sl@0
|
166 |
OWF_BLUE_MAX_VALUE) * OWF_BLUE_MAX_VALUE;
|
|
sl@0
|
167 |
|
|
sl@0
|
168 |
--count;
|
|
sl@0
|
169 |
ptr += image->pixelSize;
|
|
sl@0
|
170 |
}
|
|
sl@0
|
171 |
|
|
sl@0
|
172 |
image->format.linear = OWF_TRUE;
|
|
sl@0
|
173 |
|
|
sl@0
|
174 |
}
|
|
sl@0
|
175 |
|
|
sl@0
|
176 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
177 |
#define GAMMA(color, max, gamma) (max * pow(color/max, gamma))
|
|
sl@0
|
178 |
|
|
sl@0
|
179 |
OWF_API_CALL void
|
|
sl@0
|
180 |
OWF_Image_Gamma(OWF_IMAGE* image, OWFfloat gamma)
|
|
sl@0
|
181 |
{
|
|
sl@0
|
182 |
OWFpixel* ptr;
|
|
sl@0
|
183 |
OWFint count;
|
|
sl@0
|
184 |
|
|
sl@0
|
185 |
DPRINT(("OWF_Image_Gamma"));
|
|
sl@0
|
186 |
|
|
sl@0
|
187 |
OWF_ASSERT(image != NULL && image->data != NULL);
|
|
sl@0
|
188 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
189 |
|
|
sl@0
|
190 |
if (gamma == 1.0f)
|
|
sl@0
|
191 |
{
|
|
sl@0
|
192 |
return;
|
|
sl@0
|
193 |
}
|
|
sl@0
|
194 |
|
|
sl@0
|
195 |
ptr = (OWFpixel*) image->data;
|
|
sl@0
|
196 |
count = image->width * image->height;
|
|
sl@0
|
197 |
|
|
sl@0
|
198 |
while (count > 0)
|
|
sl@0
|
199 |
{
|
|
sl@0
|
200 |
ptr->color.red =
|
|
sl@0
|
201 |
(OWFsubpixel) GAMMA(ptr->color.red, OWF_RED_MAX_VALUE, gamma);
|
|
sl@0
|
202 |
ptr->color.green =
|
|
sl@0
|
203 |
(OWFsubpixel) GAMMA(ptr->color.green, OWF_GREEN_MAX_VALUE, gamma);
|
|
sl@0
|
204 |
ptr->color.blue =
|
|
sl@0
|
205 |
(OWFsubpixel) GAMMA(ptr->color.blue, OWF_BLUE_MAX_VALUE, gamma);
|
|
sl@0
|
206 |
|
|
sl@0
|
207 |
--count;
|
|
sl@0
|
208 |
ptr++;
|
|
sl@0
|
209 |
}
|
|
sl@0
|
210 |
}
|
|
sl@0
|
211 |
|
|
sl@0
|
212 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
213 |
OWF_API_CALL void
|
|
sl@0
|
214 |
OWF_Image_EdgeReplication(OWF_IMAGE* image)
|
|
sl@0
|
215 |
{
|
|
sl@0
|
216 |
OWFint y;
|
|
sl@0
|
217 |
OWFint copyStride;
|
|
sl@0
|
218 |
OWFuint8* srcPtr = NULL;
|
|
sl@0
|
219 |
OWFuint8* dstPtr = NULL;
|
|
sl@0
|
220 |
|
|
sl@0
|
221 |
DPRINT(("OWF_Image_EdgeReplication"));
|
|
sl@0
|
222 |
|
|
sl@0
|
223 |
OWF_ASSERT(image);
|
|
sl@0
|
224 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
225 |
OWF_ASSERT(image->width >= 3 && image->height >= 3);
|
|
sl@0
|
226 |
|
|
sl@0
|
227 |
copyStride = OWF_Image_GetStride(image->width, &image->format, 0);
|
|
sl@0
|
228 |
|
|
sl@0
|
229 |
/* top side replication */
|
|
sl@0
|
230 |
srcPtr = (OWFuint8*) image->data;
|
|
sl@0
|
231 |
srcPtr += 1 * image->stride + 0 * image->pixelSize;
|
|
sl@0
|
232 |
dstPtr = (OWFuint8*) image->data;
|
|
sl@0
|
233 |
|
|
sl@0
|
234 |
memcpy(dstPtr, srcPtr, copyStride);
|
|
sl@0
|
235 |
|
|
sl@0
|
236 |
/* bottom side replication */
|
|
sl@0
|
237 |
srcPtr = (OWFuint8*) image->data;
|
|
sl@0
|
238 |
srcPtr += (image->height-2) * image->stride + 0 * image->pixelSize;
|
|
sl@0
|
239 |
dstPtr = (OWFuint8*) image->data;
|
|
sl@0
|
240 |
dstPtr += (image->height-1) * image->stride + 0 * image->pixelSize;
|
|
sl@0
|
241 |
|
|
sl@0
|
242 |
memcpy(dstPtr, srcPtr, copyStride);
|
|
sl@0
|
243 |
|
|
sl@0
|
244 |
/* left side replication */
|
|
sl@0
|
245 |
for (y = 0; y < image->height; y++)
|
|
sl@0
|
246 |
{
|
|
sl@0
|
247 |
OWF_Image_SetPixel(image, 0, y, OWF_Image_GetPixelPtr(image, 1, y));
|
|
sl@0
|
248 |
}
|
|
sl@0
|
249 |
|
|
sl@0
|
250 |
/* right side replication */
|
|
sl@0
|
251 |
for (y = 0; y < image->height; y++)
|
|
sl@0
|
252 |
{
|
|
sl@0
|
253 |
OWF_Image_SetPixel(image, image->width-1, y, OWF_Image_GetPixelPtr(image,
|
|
sl@0
|
254 |
image->width-2,
|
|
sl@0
|
255 |
y));
|
|
sl@0
|
256 |
}
|
|
sl@0
|
257 |
|
|
sl@0
|
258 |
}
|
|
sl@0
|
259 |
|
|
sl@0
|
260 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
261 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
262 |
OWF_Image_SourceFormatConversion(OWF_IMAGE* dst, OWF_IMAGE* src)
|
|
sl@0
|
263 |
{
|
|
sl@0
|
264 |
OWFint countY, widthDiff, heightDiff;
|
|
sl@0
|
265 |
void* srcLinePtr;
|
|
sl@0
|
266 |
OWFpixel* dstLinePtr;
|
|
sl@0
|
267 |
OWFboolean replicateEdges = OWF_FALSE;
|
|
sl@0
|
268 |
#ifndef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
269 |
OWFint widthBytes;
|
|
sl@0
|
270 |
#endif
|
|
sl@0
|
271 |
|
|
sl@0
|
272 |
DPRINT(("OWF_Image_SourceFormatConversion"));
|
|
sl@0
|
273 |
|
|
sl@0
|
274 |
OWF_ASSERT(dst != 0 && dst->data != NULL);
|
|
sl@0
|
275 |
OWF_ASSERT(src != 0 && src->data != NULL);
|
|
sl@0
|
276 |
OWF_ASSERT(dst->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
277 |
OWF_ASSERT(dst->stride == OWF_Image_GetStride(dst->width, &dst->format, 0));
|
|
sl@0
|
278 |
|
|
sl@0
|
279 |
srcLinePtr = src->data;
|
|
sl@0
|
280 |
dstLinePtr = (OWFpixel*) dst->data;
|
|
sl@0
|
281 |
|
|
sl@0
|
282 |
/* dst image must either be the same size as the src image or 2 pixels
|
|
sl@0
|
283 |
bigger (enough space to perform edge replication) */
|
|
sl@0
|
284 |
if (dst->width != src->width || dst->height != src->height)
|
|
sl@0
|
285 |
{
|
|
sl@0
|
286 |
widthDiff = dst->width - src->width;
|
|
sl@0
|
287 |
heightDiff = dst->height - src->height;
|
|
sl@0
|
288 |
|
|
sl@0
|
289 |
if (widthDiff == 2 && heightDiff == 2)
|
|
sl@0
|
290 |
{
|
|
sl@0
|
291 |
replicateEdges = OWF_TRUE;
|
|
sl@0
|
292 |
/* start of the destination buffer should have a 1 pixel offset */
|
|
sl@0
|
293 |
dstLinePtr = (OWFpixel*) dst->data + 1 * dst->width + 1;
|
|
sl@0
|
294 |
}
|
|
sl@0
|
295 |
else
|
|
sl@0
|
296 |
{
|
|
sl@0
|
297 |
return OWF_FALSE;
|
|
sl@0
|
298 |
}
|
|
sl@0
|
299 |
}
|
|
sl@0
|
300 |
|
|
sl@0
|
301 |
if (dst->format.pixelFormat != OWF_IMAGE_ARGB_INTERNAL)
|
|
sl@0
|
302 |
{
|
|
sl@0
|
303 |
return OWF_FALSE;
|
|
sl@0
|
304 |
}
|
|
sl@0
|
305 |
|
|
sl@0
|
306 |
#ifndef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
307 |
widthBytes = OWF_Image_GetStride(src->width, &src->format, 0);
|
|
sl@0
|
308 |
#endif
|
|
sl@0
|
309 |
|
|
sl@0
|
310 |
for (countY = src->height; countY; countY--)
|
|
sl@0
|
311 |
{
|
|
sl@0
|
312 |
OWFint count = src->width;
|
|
sl@0
|
313 |
OWFpixel* dstPtr = dstLinePtr;
|
|
sl@0
|
314 |
|
|
sl@0
|
315 |
switch (src->format.pixelFormat)
|
|
sl@0
|
316 |
{
|
|
sl@0
|
317 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
318 |
{
|
|
sl@0
|
319 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
320 |
OWFuint32* srcPtr = (OWFuint32*) srcLinePtr;
|
|
sl@0
|
321 |
|
|
sl@0
|
322 |
while (count > 0)
|
|
sl@0
|
323 |
{
|
|
sl@0
|
324 |
dstPtr->color.alpha = (OWFsubpixel)
|
|
sl@0
|
325 |
OWF_ALPHA_MAX_VALUE * ((*srcPtr & ARGB8888_ALPHA_MASK) >> ARGB8888_ALPHA_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
326 |
dstPtr->color.red = (OWFsubpixel)
|
|
sl@0
|
327 |
OWF_RED_MAX_VALUE * ((*srcPtr & ARGB8888_RED_MASK) >> ARGB8888_RED_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
328 |
dstPtr->color.green = (OWFsubpixel)
|
|
sl@0
|
329 |
OWF_GREEN_MAX_VALUE * ((*srcPtr & ARGB8888_GREEN_MASK)>> ARGB8888_GREEN_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
330 |
dstPtr->color.blue = (OWFsubpixel)
|
|
sl@0
|
331 |
OWF_BLUE_MAX_VALUE * ((*srcPtr & ARGB8888_BLUE_MASK) >> ARGB8888_BLUE_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
332 |
dstPtr ++;
|
|
sl@0
|
333 |
srcPtr ++;
|
|
sl@0
|
334 |
count--;
|
|
sl@0
|
335 |
}
|
|
sl@0
|
336 |
#else
|
|
sl@0
|
337 |
memcpy(dstLinePtr, srcLinePtr, widthBytes);
|
|
sl@0
|
338 |
#endif
|
|
sl@0
|
339 |
break;
|
|
sl@0
|
340 |
}
|
|
sl@0
|
341 |
|
|
sl@0
|
342 |
case OWF_IMAGE_XRGB8888:
|
|
sl@0
|
343 |
{
|
|
sl@0
|
344 |
OWFuint32* srcPtr = (OWFuint32*) srcLinePtr;
|
|
sl@0
|
345 |
|
|
sl@0
|
346 |
while (count > 0)
|
|
sl@0
|
347 |
{
|
|
sl@0
|
348 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
349 |
dstPtr->color.alpha = OWF_FULLY_OPAQUE;
|
|
sl@0
|
350 |
dstPtr->color.red = (OWFsubpixel)
|
|
sl@0
|
351 |
OWF_RED_MAX_VALUE * ((*srcPtr & ARGB8888_RED_MASK) >> ARGB8888_RED_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
352 |
dstPtr->color.green = (OWFsubpixel)
|
|
sl@0
|
353 |
OWF_GREEN_MAX_VALUE * ((*srcPtr & ARGB8888_GREEN_MASK) >> ARGB8888_GREEN_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
354 |
dstPtr->color.blue = (OWFsubpixel)
|
|
sl@0
|
355 |
OWF_BLUE_MAX_VALUE * ((*srcPtr & ARGB8888_BLUE_MASK) >> ARGB8888_BLUE_SHIFT) / OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
356 |
#else
|
|
sl@0
|
357 |
*(OWFuint32*)dstPtr = *srcPtr | ARGB8888_ALPHA_MASK;
|
|
sl@0
|
358 |
#endif
|
|
sl@0
|
359 |
dstPtr ++;
|
|
sl@0
|
360 |
srcPtr ++;
|
|
sl@0
|
361 |
count--;
|
|
sl@0
|
362 |
}
|
|
sl@0
|
363 |
break;
|
|
sl@0
|
364 |
}
|
|
sl@0
|
365 |
|
|
sl@0
|
366 |
case OWF_IMAGE_RGB565:
|
|
sl@0
|
367 |
{
|
|
sl@0
|
368 |
OWFfloat tmp;
|
|
sl@0
|
369 |
OWFuint16* srcPtr = (OWFuint16*) srcLinePtr;
|
|
sl@0
|
370 |
|
|
sl@0
|
371 |
while (count > 0)
|
|
sl@0
|
372 |
{
|
|
sl@0
|
373 |
/*
|
|
sl@0
|
374 |
* Formula for converting channel value is:
|
|
sl@0
|
375 |
* Each channel is multiplied by (2^d - 1)/(2^s -1)
|
|
sl@0
|
376 |
* where d is dest channel bits and s is source channel bits.
|
|
sl@0
|
377 |
*/
|
|
sl@0
|
378 |
dstPtr->color.alpha = (OWFsubpixel) OWF_FULLY_OPAQUE;
|
|
sl@0
|
379 |
|
|
sl@0
|
380 |
tmp = (OWFfloat)((*srcPtr & RGB565_RED_MASK) >> RGB565_RED_SHIFT);
|
|
sl@0
|
381 |
dstPtr->color.red = (OWFsubpixel)OWF_RED_MAX_VALUE * tmp / 31.0f + OWF_SOURCE_CONVERSION_ROUNDING_VALUE;
|
|
sl@0
|
382 |
|
|
sl@0
|
383 |
tmp = (OWFfloat)((*srcPtr & RGB565_GREEN_MASK) >> RGB565_GREEN_SHIFT);
|
|
sl@0
|
384 |
dstPtr->color.green = (OWFsubpixel)OWF_GREEN_MAX_VALUE * tmp / 63.0f + OWF_SOURCE_CONVERSION_ROUNDING_VALUE;
|
|
sl@0
|
385 |
|
|
sl@0
|
386 |
tmp = (OWFfloat)(*srcPtr & RGB565_BLUE_MASK);
|
|
sl@0
|
387 |
dstPtr->color.blue = (OWFsubpixel)OWF_BLUE_MAX_VALUE * tmp / 31.0f + OWF_SOURCE_CONVERSION_ROUNDING_VALUE;
|
|
sl@0
|
388 |
|
|
sl@0
|
389 |
dstPtr ++;
|
|
sl@0
|
390 |
srcPtr ++;
|
|
sl@0
|
391 |
count--;
|
|
sl@0
|
392 |
}
|
|
sl@0
|
393 |
break;
|
|
sl@0
|
394 |
}
|
|
sl@0
|
395 |
|
|
sl@0
|
396 |
default:
|
|
sl@0
|
397 |
{
|
|
sl@0
|
398 |
return OWF_FALSE; /* source format not supported */
|
|
sl@0
|
399 |
}
|
|
sl@0
|
400 |
}
|
|
sl@0
|
401 |
|
|
sl@0
|
402 |
dstLinePtr+=dst->width;
|
|
sl@0
|
403 |
srcLinePtr=(OWFuint8*)srcLinePtr+src->stride;
|
|
sl@0
|
404 |
}
|
|
sl@0
|
405 |
|
|
sl@0
|
406 |
if (replicateEdges)
|
|
sl@0
|
407 |
{
|
|
sl@0
|
408 |
OWF_Image_EdgeReplication(dst);
|
|
sl@0
|
409 |
}
|
|
sl@0
|
410 |
|
|
sl@0
|
411 |
return OWF_TRUE;
|
|
sl@0
|
412 |
}
|
|
sl@0
|
413 |
|
|
sl@0
|
414 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
415 |
OWF_PUBLIC OWFint
|
|
sl@0
|
416 |
OWF_Image_GetStride(OWFint width, const OWF_IMAGE_FORMAT* format, OWFint minimumStride)
|
|
sl@0
|
417 |
{
|
|
sl@0
|
418 |
OWFint size;
|
|
sl@0
|
419 |
OWFint pixelSize;
|
|
sl@0
|
420 |
|
|
sl@0
|
421 |
DPRINT(("OWF_Image_GetStride"));
|
|
sl@0
|
422 |
|
|
sl@0
|
423 |
OWF_ASSERT(format);
|
|
sl@0
|
424 |
|
|
sl@0
|
425 |
pixelSize = OWF_Image_GetFormatPixelSize(format->pixelFormat);
|
|
sl@0
|
426 |
|
|
sl@0
|
427 |
if (pixelSize < 0)
|
|
sl@0
|
428 |
{
|
|
sl@0
|
429 |
/* negative pixelSize means that pixel size is a fraction
|
|
sl@0
|
430 |
* (1/-pixelSize) of a byte, e.g. -8 means pixel has size
|
|
sl@0
|
431 |
* of one bit. */
|
|
sl@0
|
432 |
|
|
sl@0
|
433 |
size = (width + 1) / -pixelSize;
|
|
sl@0
|
434 |
}
|
|
sl@0
|
435 |
else
|
|
sl@0
|
436 |
{
|
|
sl@0
|
437 |
size = width * pixelSize;
|
|
sl@0
|
438 |
}
|
|
sl@0
|
439 |
if (size<minimumStride)
|
|
sl@0
|
440 |
{
|
|
sl@0
|
441 |
size=minimumStride;
|
|
sl@0
|
442 |
}
|
|
sl@0
|
443 |
if (format->rowPadding)
|
|
sl@0
|
444 |
{
|
|
sl@0
|
445 |
size += format->rowPadding - 1;
|
|
sl@0
|
446 |
size -= size % format->rowPadding;
|
|
sl@0
|
447 |
}
|
|
sl@0
|
448 |
return size;
|
|
sl@0
|
449 |
}
|
|
sl@0
|
450 |
|
|
sl@0
|
451 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
452 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
453 |
OWF_Image_IsValidDestinationFormat(OWF_IMAGE_FORMAT* format)
|
|
sl@0
|
454 |
{
|
|
sl@0
|
455 |
DPRINT(("OWF_Image_IsValidDestinationFormat"));
|
|
sl@0
|
456 |
|
|
sl@0
|
457 |
switch (format->pixelFormat)
|
|
sl@0
|
458 |
{
|
|
sl@0
|
459 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
460 |
{
|
|
sl@0
|
461 |
return OWF_TRUE;
|
|
sl@0
|
462 |
}
|
|
sl@0
|
463 |
case OWF_IMAGE_XRGB8888:
|
|
sl@0
|
464 |
{
|
|
sl@0
|
465 |
return OWF_TRUE;
|
|
sl@0
|
466 |
}
|
|
sl@0
|
467 |
#ifdef SUPPORT_565_OUTPUT
|
|
sl@0
|
468 |
case OWF_IMAGE_RGB565:
|
|
sl@0
|
469 |
{
|
|
sl@0
|
470 |
return OWF_TRUE;
|
|
sl@0
|
471 |
}
|
|
sl@0
|
472 |
#endif
|
|
sl@0
|
473 |
default:
|
|
sl@0
|
474 |
{
|
|
sl@0
|
475 |
return OWF_FALSE; /* destination format not supported */
|
|
sl@0
|
476 |
}
|
|
sl@0
|
477 |
}
|
|
sl@0
|
478 |
}
|
|
sl@0
|
479 |
|
|
sl@0
|
480 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
481 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
482 |
OWF_Image_DestinationFormatConversion(OWF_IMAGE* dst, OWF_IMAGE* src)
|
|
sl@0
|
483 |
{
|
|
sl@0
|
484 |
OWFint countY;
|
|
sl@0
|
485 |
OWFuint32* dstPtr;
|
|
sl@0
|
486 |
OWFpixel* srcPtr;
|
|
sl@0
|
487 |
#ifndef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
488 |
OWFint widthBytes;
|
|
sl@0
|
489 |
#endif
|
|
sl@0
|
490 |
|
|
sl@0
|
491 |
DPRINT(("OWF_Image_DestinationFormatConversion"));
|
|
sl@0
|
492 |
|
|
sl@0
|
493 |
OWF_ASSERT(dst != 0 && dst->data != NULL);
|
|
sl@0
|
494 |
OWF_ASSERT(src != 0 && src->data != NULL);
|
|
sl@0
|
495 |
OWF_ASSERT(src->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
496 |
/* Note: src->stride cannot be relied upon to be correct. Assume lines are contiguous. */
|
|
sl@0
|
497 |
|
|
sl@0
|
498 |
if (src->format.pixelFormat != OWF_IMAGE_ARGB_INTERNAL)
|
|
sl@0
|
499 |
{
|
|
sl@0
|
500 |
return OWF_FALSE;
|
|
sl@0
|
501 |
}
|
|
sl@0
|
502 |
|
|
sl@0
|
503 |
/* src and data must have equal amount of pixels */
|
|
sl@0
|
504 |
if (dst->width != src->width || dst->height != src->height)
|
|
sl@0
|
505 |
{
|
|
sl@0
|
506 |
return OWF_FALSE;
|
|
sl@0
|
507 |
}
|
|
sl@0
|
508 |
|
|
sl@0
|
509 |
dstPtr = (OWFuint32*) dst->data;
|
|
sl@0
|
510 |
srcPtr = (OWFpixel*) src->data;
|
|
sl@0
|
511 |
|
|
sl@0
|
512 |
if (dst->format.premultiplied && !src->format.premultiplied)
|
|
sl@0
|
513 |
{
|
|
sl@0
|
514 |
OWF_Image_PremultiplyAlpha(src);
|
|
sl@0
|
515 |
}
|
|
sl@0
|
516 |
else if (!dst->format.premultiplied && src->format.premultiplied)
|
|
sl@0
|
517 |
{
|
|
sl@0
|
518 |
OWF_Image_UnpremultiplyAlpha(src);
|
|
sl@0
|
519 |
}
|
|
sl@0
|
520 |
|
|
sl@0
|
521 |
#ifndef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
522 |
widthBytes = OWF_Image_GetStride(src->width, &src->format, 0);
|
|
sl@0
|
523 |
#endif
|
|
sl@0
|
524 |
|
|
sl@0
|
525 |
for (countY = 0; countY < src->height; countY++)
|
|
sl@0
|
526 |
{
|
|
sl@0
|
527 |
OWFuint8* destination = (OWFuint8*) dst->data;
|
|
sl@0
|
528 |
destination += countY*dst->stride;
|
|
sl@0
|
529 |
dstPtr = (OWFuint32*) destination;
|
|
sl@0
|
530 |
|
|
sl@0
|
531 |
switch (dst->format.pixelFormat)
|
|
sl@0
|
532 |
{
|
|
sl@0
|
533 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
534 |
{
|
|
sl@0
|
535 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
536 |
OWFint countX;
|
|
sl@0
|
537 |
OWFuint32 dstPixel = 0;
|
|
sl@0
|
538 |
|
|
sl@0
|
539 |
for (countX = 0; countX < src->width; countX++)
|
|
sl@0
|
540 |
{
|
|
sl@0
|
541 |
dstPixel = ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.alpha / OWF_ALPHA_MAX_VALUE)) <<
|
|
sl@0
|
542 |
ARGB8888_ALPHA_SHIFT);
|
|
sl@0
|
543 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.red / OWF_RED_MAX_VALUE)) <<
|
|
sl@0
|
544 |
ARGB8888_RED_SHIFT);
|
|
sl@0
|
545 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.green / OWF_GREEN_MAX_VALUE)) <<
|
|
sl@0
|
546 |
ARGB8888_GREEN_SHIFT);
|
|
sl@0
|
547 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.blue / OWF_BLUE_MAX_VALUE)) <<
|
|
sl@0
|
548 |
ARGB8888_BLUE_SHIFT);
|
|
sl@0
|
549 |
*dstPtr = dstPixel;
|
|
sl@0
|
550 |
dstPtr ++;
|
|
sl@0
|
551 |
srcPtr ++;
|
|
sl@0
|
552 |
}
|
|
sl@0
|
553 |
#else
|
|
sl@0
|
554 |
memcpy(dstPtr, srcPtr, widthBytes);
|
|
sl@0
|
555 |
srcPtr = (OWFpixel*)((OWFuint8*)srcPtr + widthBytes);
|
|
sl@0
|
556 |
#endif
|
|
sl@0
|
557 |
break;
|
|
sl@0
|
558 |
}
|
|
sl@0
|
559 |
|
|
sl@0
|
560 |
case OWF_IMAGE_XRGB8888:
|
|
sl@0
|
561 |
{
|
|
sl@0
|
562 |
OWFint countX;
|
|
sl@0
|
563 |
OWFuint32 dstPixel = 0;
|
|
sl@0
|
564 |
|
|
sl@0
|
565 |
for (countX = 0; countX < src->width; countX++)
|
|
sl@0
|
566 |
{
|
|
sl@0
|
567 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
568 |
dstPixel = ARGB8888_ALPHA_MASK;
|
|
sl@0
|
569 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.red / OWF_RED_MAX_VALUE)) <<
|
|
sl@0
|
570 |
ARGB8888_RED_SHIFT);
|
|
sl@0
|
571 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.green / OWF_GREEN_MAX_VALUE)) <<
|
|
sl@0
|
572 |
ARGB8888_GREEN_SHIFT);
|
|
sl@0
|
573 |
dstPixel |= ((OWFuint8)(roundSubPixel(OWF_BYTE_MAX_VALUE * srcPtr->color.blue / OWF_BLUE_MAX_VALUE)) <<
|
|
sl@0
|
574 |
ARGB8888_BLUE_SHIFT);
|
|
sl@0
|
575 |
#else
|
|
sl@0
|
576 |
dstPixel = *(OWFuint32*)srcPtr | ARGB8888_ALPHA_MASK;
|
|
sl@0
|
577 |
#endif
|
|
sl@0
|
578 |
*dstPtr = dstPixel;
|
|
sl@0
|
579 |
dstPtr ++;
|
|
sl@0
|
580 |
srcPtr ++;
|
|
sl@0
|
581 |
}
|
|
sl@0
|
582 |
break;
|
|
sl@0
|
583 |
}
|
|
sl@0
|
584 |
|
|
sl@0
|
585 |
default:
|
|
sl@0
|
586 |
{
|
|
sl@0
|
587 |
return OWF_FALSE; /* destination format not supported */
|
|
sl@0
|
588 |
}
|
|
sl@0
|
589 |
}
|
|
sl@0
|
590 |
}
|
|
sl@0
|
591 |
|
|
sl@0
|
592 |
return OWF_TRUE;
|
|
sl@0
|
593 |
}
|
|
sl@0
|
594 |
|
|
sl@0
|
595 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
596 |
OWF_API_CALL void
|
|
sl@0
|
597 |
OWF_Image_Init(OWF_IMAGE* image)
|
|
sl@0
|
598 |
{
|
|
sl@0
|
599 |
DPRINT(("OWF_Image_Init"));
|
|
sl@0
|
600 |
|
|
sl@0
|
601 |
OWF_ASSERT(NULL != image);
|
|
sl@0
|
602 |
memset(image, 0, sizeof(OWF_IMAGE));
|
|
sl@0
|
603 |
}
|
|
sl@0
|
604 |
|
|
sl@0
|
605 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
606 |
OWF_PUBLIC OWF_IMAGE*
|
|
sl@0
|
607 |
OWF_Image_Create(OWFint width,
|
|
sl@0
|
608 |
OWFint height,
|
|
sl@0
|
609 |
const OWF_IMAGE_FORMAT* format,
|
|
sl@0
|
610 |
void* buffer,
|
|
sl@0
|
611 |
OWFint minimumStride
|
|
sl@0
|
612 |
)
|
|
sl@0
|
613 |
{
|
|
sl@0
|
614 |
OWF_IMAGE* image;
|
|
sl@0
|
615 |
|
|
sl@0
|
616 |
DPRINT(("OWF_Image_Create"));
|
|
sl@0
|
617 |
|
|
sl@0
|
618 |
image = CREATE(OWF_IMAGE);
|
|
sl@0
|
619 |
|
|
sl@0
|
620 |
if (image)
|
|
sl@0
|
621 |
{
|
|
sl@0
|
622 |
|
|
sl@0
|
623 |
image->format.pixelFormat = format->pixelFormat;
|
|
sl@0
|
624 |
image->format.linear = format->linear;
|
|
sl@0
|
625 |
image->format.premultiplied = format->premultiplied;
|
|
sl@0
|
626 |
image->format.rowPadding = format->rowPadding;
|
|
sl@0
|
627 |
|
|
sl@0
|
628 |
image->pixelSize = OWF_Image_GetFormatPixelSize(format->pixelFormat);
|
|
sl@0
|
629 |
image->width = width;
|
|
sl@0
|
630 |
image->height = height;
|
|
sl@0
|
631 |
|
|
sl@0
|
632 |
/* stride is row length in bytes (aligned according to image format) */
|
|
sl@0
|
633 |
image->stride = OWF_Image_GetStride(width, &image->format, minimumStride);
|
|
sl@0
|
634 |
image->foreign = (buffer) ? OWF_TRUE : OWF_FALSE;
|
|
sl@0
|
635 |
image->dataMax = image->stride * height;
|
|
sl@0
|
636 |
|
|
sl@0
|
637 |
DPRINT(("OWF_Image_Create:"));
|
|
sl@0
|
638 |
DPRINT((" Pixel format = %x", format->pixelFormat));
|
|
sl@0
|
639 |
DPRINT((" Linear = %d", format->linear));
|
|
sl@0
|
640 |
DPRINT((" Premultiplied = %d", format->premultiplied));
|
|
sl@0
|
641 |
DPRINT((" Row alignment = %d bytes", format->rowPadding));
|
|
sl@0
|
642 |
DPRINT((" Pixel size = %d", image->pixelSize));
|
|
sl@0
|
643 |
DPRINT((" Width = %d", image->width));
|
|
sl@0
|
644 |
DPRINT((" Height = %d", image->height));
|
|
sl@0
|
645 |
DPRINT((" Stride = %d", image->stride));
|
|
sl@0
|
646 |
DPRINT((" Foreign data = %d", image->foreign));
|
|
sl@0
|
647 |
DPRINT((" Data size = %d", image->dataMax));
|
|
sl@0
|
648 |
if (image->dataMax > 0)
|
|
sl@0
|
649 |
{
|
|
sl@0
|
650 |
image->data = (image->foreign) ? (buffer) :
|
|
sl@0
|
651 |
OWF_Image_AllocData(0, width, height, format->pixelFormat);
|
|
sl@0
|
652 |
}
|
|
sl@0
|
653 |
else
|
|
sl@0
|
654 |
{
|
|
sl@0
|
655 |
/* either overflow occured or width/height is zero */
|
|
sl@0
|
656 |
if (width && height)
|
|
sl@0
|
657 |
{
|
|
sl@0
|
658 |
DPRINT(("OWF_Image_Create: Overflow in image size calculation."));
|
|
sl@0
|
659 |
}
|
|
sl@0
|
660 |
else
|
|
sl@0
|
661 |
{
|
|
sl@0
|
662 |
DPRINT(("OWF_Image_Create: width or height is zero."));
|
|
sl@0
|
663 |
}
|
|
sl@0
|
664 |
}
|
|
sl@0
|
665 |
}
|
|
sl@0
|
666 |
|
|
sl@0
|
667 |
if (!(image && image->data && (image->dataMax > 0)))
|
|
sl@0
|
668 |
{
|
|
sl@0
|
669 |
DPRINT(("OWF_Image_Create: Image creation failed (image = %p, "
|
|
sl@0
|
670 |
"data = %p, dataSize = %d)",
|
|
sl@0
|
671 |
image, image ? (void*)(image->data) : (void*)NULL, image?image->dataMax:-1));
|
|
sl@0
|
672 |
DESTROY(image);
|
|
sl@0
|
673 |
return NULL;
|
|
sl@0
|
674 |
}
|
|
sl@0
|
675 |
return image;
|
|
sl@0
|
676 |
}
|
|
sl@0
|
677 |
|
|
sl@0
|
678 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
679 |
OWF_PUBLIC void OWF_Image_Destroy(OWF_IMAGE* image)
|
|
sl@0
|
680 |
{
|
|
sl@0
|
681 |
if (image)
|
|
sl@0
|
682 |
{
|
|
sl@0
|
683 |
DESTROY(image);
|
|
sl@0
|
684 |
}
|
|
sl@0
|
685 |
}
|
|
sl@0
|
686 |
|
|
sl@0
|
687 |
|
|
sl@0
|
688 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
689 |
OWF_API_CALL OWF_IMAGE*
|
|
sl@0
|
690 |
OWF_Image_Copy(const OWF_IMAGE* image)
|
|
sl@0
|
691 |
{
|
|
sl@0
|
692 |
OWF_IMAGE* newImage = NULL;
|
|
sl@0
|
693 |
|
|
sl@0
|
694 |
DPRINT(("OWF_Image_Copy"));
|
|
sl@0
|
695 |
|
|
sl@0
|
696 |
OWF_ASSERT(image);
|
|
sl@0
|
697 |
|
|
sl@0
|
698 |
newImage = CREATE(OWF_IMAGE);
|
|
sl@0
|
699 |
if (newImage)
|
|
sl@0
|
700 |
{
|
|
sl@0
|
701 |
memcpy(newImage, image, sizeof(*newImage));
|
|
sl@0
|
702 |
if (!image->foreign)
|
|
sl@0
|
703 |
{
|
|
sl@0
|
704 |
newImage->data = xalloc(1, image->dataMax);
|
|
sl@0
|
705 |
if (newImage->data)
|
|
sl@0
|
706 |
{
|
|
sl@0
|
707 |
memcpy(newImage->data,
|
|
sl@0
|
708 |
image->data,
|
|
sl@0
|
709 |
image->height*image->stride);
|
|
sl@0
|
710 |
}
|
|
sl@0
|
711 |
}
|
|
sl@0
|
712 |
}
|
|
sl@0
|
713 |
|
|
sl@0
|
714 |
return newImage;
|
|
sl@0
|
715 |
}
|
|
sl@0
|
716 |
|
|
sl@0
|
717 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
718 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
719 |
OWF_Image_SetSize(OWF_IMAGE* image,
|
|
sl@0
|
720 |
OWFint width,
|
|
sl@0
|
721 |
OWFint height)
|
|
sl@0
|
722 |
{
|
|
sl@0
|
723 |
OWFint size;
|
|
sl@0
|
724 |
OWFint stride;
|
|
sl@0
|
725 |
|
|
sl@0
|
726 |
DPRINT(("OWF_Image_SetSize"));
|
|
sl@0
|
727 |
|
|
sl@0
|
728 |
OWF_ASSERT(image);
|
|
sl@0
|
729 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL ||
|
|
sl@0
|
730 |
image->format.pixelFormat==OWF_IMAGE_L32);
|
|
sl@0
|
731 |
|
|
sl@0
|
732 |
/** note that this setsize ignores any specialised stride **/
|
|
sl@0
|
733 |
stride = OWF_Image_GetStride(width, &image->format, 0);
|
|
sl@0
|
734 |
size = height * stride;
|
|
sl@0
|
735 |
|
|
sl@0
|
736 |
/* change source size if buffer have enough space */
|
|
sl@0
|
737 |
if (size > 0 && size <= image->dataMax)
|
|
sl@0
|
738 |
{
|
|
sl@0
|
739 |
image->height = height;
|
|
sl@0
|
740 |
image->width = width;
|
|
sl@0
|
741 |
image->stride = stride;
|
|
sl@0
|
742 |
return OWF_TRUE;
|
|
sl@0
|
743 |
}
|
|
sl@0
|
744 |
return OWF_FALSE;
|
|
sl@0
|
745 |
}
|
|
sl@0
|
746 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
747 |
OWF_API_CALL void
|
|
sl@0
|
748 |
OWF_Image_SetFlags(OWF_IMAGE* image,
|
|
sl@0
|
749 |
OWFboolean premultiply,
|
|
sl@0
|
750 |
OWFboolean linear)
|
|
sl@0
|
751 |
{
|
|
sl@0
|
752 |
DPRINT(("OWF_Image_SetFlags"));
|
|
sl@0
|
753 |
|
|
sl@0
|
754 |
OWF_ASSERT(image);
|
|
sl@0
|
755 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL ||
|
|
sl@0
|
756 |
image->format.pixelFormat==OWF_IMAGE_L32);
|
|
sl@0
|
757 |
image->format.linear=linear;
|
|
sl@0
|
758 |
image->format.premultiplied=premultiply;
|
|
sl@0
|
759 |
}
|
|
sl@0
|
760 |
|
|
sl@0
|
761 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
762 |
OWF_API_CALL void
|
|
sl@0
|
763 |
OWF_Image_SetPixelBuffer(OWF_IMAGE* image, void* buffer)
|
|
sl@0
|
764 |
{
|
|
sl@0
|
765 |
DPRINT(("OWF_Image_SetPixelBuffer"));
|
|
sl@0
|
766 |
|
|
sl@0
|
767 |
OWF_ASSERT(image);
|
|
sl@0
|
768 |
OWF_ASSERT(buffer);
|
|
sl@0
|
769 |
OWF_ASSERT(image->foreign);
|
|
sl@0
|
770 |
if (image->foreign)
|
|
sl@0
|
771 |
{
|
|
sl@0
|
772 |
image->data=buffer;
|
|
sl@0
|
773 |
}
|
|
sl@0
|
774 |
}
|
|
sl@0
|
775 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
776 |
/* NEVER USED
|
|
sl@0
|
777 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
778 |
OWF_Image_SetPixelData(OWF_IMAGE* image,
|
|
sl@0
|
779 |
OWFint width,
|
|
sl@0
|
780 |
OWFint height,
|
|
sl@0
|
781 |
const OWF_IMAGE_FORMAT* format,
|
|
sl@0
|
782 |
void* buffer)
|
|
sl@0
|
783 |
{
|
|
sl@0
|
784 |
OWFint size = 0,
|
|
sl@0
|
785 |
stride = 0;
|
|
sl@0
|
786 |
|
|
sl@0
|
787 |
OWF_ASSERT(image && format);
|
|
sl@0
|
788 |
|
|
sl@0
|
789 |
stride = OWF_Image_GetStride(width, format);
|
|
sl@0
|
790 |
size = height * stride;
|
|
sl@0
|
791 |
|
|
sl@0
|
792 |
if (size <= 0)
|
|
sl@0
|
793 |
{
|
|
sl@0
|
794 |
return OWF_FALSE;
|
|
sl@0
|
795 |
}
|
|
sl@0
|
796 |
|
|
sl@0
|
797 |
if (!image->foreign)
|
|
sl@0
|
798 |
{
|
|
sl@0
|
799 |
OWF_Image_FreeData(0, &image->data);
|
|
sl@0
|
800 |
}
|
|
sl@0
|
801 |
|
|
sl@0
|
802 |
image->format.pixelFormat = format->pixelFormat;
|
|
sl@0
|
803 |
image->format.linear = format->linear;
|
|
sl@0
|
804 |
image->format.premultiplied = format->premultiplied;
|
|
sl@0
|
805 |
image->format.rowPadding = format->rowPadding;
|
|
sl@0
|
806 |
|
|
sl@0
|
807 |
image->pixelSize = OWF_Image_GetFormatPixelSize(format->pixelFormat);
|
|
sl@0
|
808 |
image->width = width;
|
|
sl@0
|
809 |
image->height = height;
|
|
sl@0
|
810 |
image->stride = stride;
|
|
sl@0
|
811 |
image->foreign = OWF_TRUE;
|
|
sl@0
|
812 |
image->dataMax = size;
|
|
sl@0
|
813 |
image->data = buffer;
|
|
sl@0
|
814 |
|
|
sl@0
|
815 |
return OWF_TRUE;
|
|
sl@0
|
816 |
}
|
|
sl@0
|
817 |
*/
|
|
sl@0
|
818 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
819 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
820 |
OWF_Image_Blit(OWF_IMAGE* dst,
|
|
sl@0
|
821 |
OWF_RECTANGLE const* dstRect,
|
|
sl@0
|
822 |
OWF_IMAGE const* src,
|
|
sl@0
|
823 |
OWF_RECTANGLE const* srcRect)
|
|
sl@0
|
824 |
{
|
|
sl@0
|
825 |
OWF_RECTANGLE bounds, rect, drect, srect;
|
|
sl@0
|
826 |
OWFint lineCount = 0;
|
|
sl@0
|
827 |
OWFint copyStride = 0;
|
|
sl@0
|
828 |
OWFuint8* srcPtr = NULL;
|
|
sl@0
|
829 |
OWFuint8* dstPtr = NULL;
|
|
sl@0
|
830 |
|
|
sl@0
|
831 |
DPRINT(("OWF_Image_Blit"));
|
|
sl@0
|
832 |
|
|
sl@0
|
833 |
OWF_ASSERT(dst != 0 && dst->data != NULL);
|
|
sl@0
|
834 |
OWF_ASSERT(src != 0 && src->data != NULL);
|
|
sl@0
|
835 |
OWF_ASSERT(dst->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
836 |
OWF_ASSERT(src->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
837 |
|
|
sl@0
|
838 |
OWF_Rect_Set(&bounds, 0, 0, dst->width, dst->height);
|
|
sl@0
|
839 |
OWF_Rect_Set(&rect,
|
|
sl@0
|
840 |
dstRect->x, dstRect->y,
|
|
sl@0
|
841 |
srcRect->width, srcRect->height);
|
|
sl@0
|
842 |
OWF_Rect_Set(&srect,
|
|
sl@0
|
843 |
srcRect->x, srcRect->y,
|
|
sl@0
|
844 |
srcRect->width, srcRect->height);
|
|
sl@0
|
845 |
|
|
sl@0
|
846 |
/* clip destination rectangle against bounds */
|
|
sl@0
|
847 |
if (!OWF_Rect_Clip(&drect, &rect, &bounds))
|
|
sl@0
|
848 |
{
|
|
sl@0
|
849 |
return OWF_FALSE;
|
|
sl@0
|
850 |
}
|
|
sl@0
|
851 |
|
|
sl@0
|
852 |
if (src->pixelSize != dst->pixelSize)
|
|
sl@0
|
853 |
{
|
|
sl@0
|
854 |
DPRINT(("OWF_Image_Blit(): pixels sizes differ\n"));
|
|
sl@0
|
855 |
return OWF_FALSE;
|
|
sl@0
|
856 |
}
|
|
sl@0
|
857 |
|
|
sl@0
|
858 |
lineCount = srect.height;
|
|
sl@0
|
859 |
copyStride = srect.width * src->pixelSize;
|
|
sl@0
|
860 |
|
|
sl@0
|
861 |
/* use bytepointers in copy - generic */
|
|
sl@0
|
862 |
srcPtr = (OWFuint8*) src->data;
|
|
sl@0
|
863 |
srcPtr += srect.y * src->stride + srect.x * src->pixelSize;
|
|
sl@0
|
864 |
dstPtr = (OWFuint8*)dst->data;
|
|
sl@0
|
865 |
dstPtr += drect.y * dst->stride + drect.x * src->pixelSize;
|
|
sl@0
|
866 |
|
|
sl@0
|
867 |
while (lineCount > 0)
|
|
sl@0
|
868 |
{
|
|
sl@0
|
869 |
--lineCount;
|
|
sl@0
|
870 |
|
|
sl@0
|
871 |
memcpy(dstPtr, srcPtr, copyStride);
|
|
sl@0
|
872 |
|
|
sl@0
|
873 |
srcPtr += src->stride;
|
|
sl@0
|
874 |
dstPtr += dst->stride;
|
|
sl@0
|
875 |
}
|
|
sl@0
|
876 |
|
|
sl@0
|
877 |
return OWF_TRUE;
|
|
sl@0
|
878 |
}
|
|
sl@0
|
879 |
|
|
sl@0
|
880 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
881 |
OWF_API_CALL OWFpixel*
|
|
sl@0
|
882 |
OWF_Image_GetPixelPtr(OWF_IMAGE* image,
|
|
sl@0
|
883 |
OWFint x,
|
|
sl@0
|
884 |
OWFint y)
|
|
sl@0
|
885 |
{
|
|
sl@0
|
886 |
OWF_ASSERT(image && image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
887 |
if (!(image && image->data))
|
|
sl@0
|
888 |
{
|
|
sl@0
|
889 |
return 0;
|
|
sl@0
|
890 |
}
|
|
sl@0
|
891 |
|
|
sl@0
|
892 |
x = CLAMP(x, 0, image->width-1);
|
|
sl@0
|
893 |
y = CLAMP(y, 0, image->height-1);
|
|
sl@0
|
894 |
|
|
sl@0
|
895 |
return (OWFpixel*)image->data + y * image->width + x ;
|
|
sl@0
|
896 |
}
|
|
sl@0
|
897 |
|
|
sl@0
|
898 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
899 |
OWF_API_CALL void
|
|
sl@0
|
900 |
OWF_Image_GetPixel(OWF_IMAGE* image,
|
|
sl@0
|
901 |
OWFint x,
|
|
sl@0
|
902 |
OWFint y,
|
|
sl@0
|
903 |
OWFpixel* pixel)
|
|
sl@0
|
904 |
{
|
|
sl@0
|
905 |
OWFpixel* temp = NULL;
|
|
sl@0
|
906 |
|
|
sl@0
|
907 |
OWF_ASSERT(pixel);
|
|
sl@0
|
908 |
|
|
sl@0
|
909 |
if (!(image && image->data))
|
|
sl@0
|
910 |
{
|
|
sl@0
|
911 |
return;
|
|
sl@0
|
912 |
}
|
|
sl@0
|
913 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
914 |
|
|
sl@0
|
915 |
pixel->color.alpha = 0;
|
|
sl@0
|
916 |
pixel->color.red = 0;
|
|
sl@0
|
917 |
pixel->color.green = 0;
|
|
sl@0
|
918 |
pixel->color.blue = 0;
|
|
sl@0
|
919 |
|
|
sl@0
|
920 |
if (x < 0 || y < 0 || x >= image->width || y >= image->height)
|
|
sl@0
|
921 |
{
|
|
sl@0
|
922 |
return;
|
|
sl@0
|
923 |
}
|
|
sl@0
|
924 |
|
|
sl@0
|
925 |
temp = (OWFpixel*)image->data + y * image->width + x;
|
|
sl@0
|
926 |
|
|
sl@0
|
927 |
pixel->color.alpha = temp->color.alpha;
|
|
sl@0
|
928 |
pixel->color.red = temp->color.red;
|
|
sl@0
|
929 |
pixel->color.green = temp->color.green;
|
|
sl@0
|
930 |
pixel->color.blue = temp->color.blue;
|
|
sl@0
|
931 |
}
|
|
sl@0
|
932 |
|
|
sl@0
|
933 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
934 |
OWF_API_CALL void
|
|
sl@0
|
935 |
OWF_Image_SetPixel(OWF_IMAGE* image,
|
|
sl@0
|
936 |
OWFint x,
|
|
sl@0
|
937 |
OWFint y,
|
|
sl@0
|
938 |
OWFpixel const* pixel)
|
|
sl@0
|
939 |
{
|
|
sl@0
|
940 |
OWFpixel* data = NULL;
|
|
sl@0
|
941 |
|
|
sl@0
|
942 |
if (!(image && image->data))
|
|
sl@0
|
943 |
{
|
|
sl@0
|
944 |
return;
|
|
sl@0
|
945 |
}
|
|
sl@0
|
946 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
947 |
|
|
sl@0
|
948 |
if(x < 0 || y < 0 || x >= image->width || y >= image->height)
|
|
sl@0
|
949 |
{
|
|
sl@0
|
950 |
return;
|
|
sl@0
|
951 |
}
|
|
sl@0
|
952 |
|
|
sl@0
|
953 |
|
|
sl@0
|
954 |
data = (OWFpixel*)image->data + y * image->width + x;
|
|
sl@0
|
955 |
|
|
sl@0
|
956 |
data->color.red = pixel->color.red;
|
|
sl@0
|
957 |
data->color.green = pixel->color.green;
|
|
sl@0
|
958 |
data->color.blue = pixel->color.blue;
|
|
sl@0
|
959 |
data->color.alpha = pixel->color.alpha;
|
|
sl@0
|
960 |
}
|
|
sl@0
|
961 |
|
|
sl@0
|
962 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
963 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
964 |
OWF_Image_PointSamplingStretchBlit(OWF_IMAGE* dst,
|
|
sl@0
|
965 |
OWF_RECTANGLE* dstRect,
|
|
sl@0
|
966 |
OWF_IMAGE* src,
|
|
sl@0
|
967 |
OWFfloat* srcRect)
|
|
sl@0
|
968 |
{
|
|
sl@0
|
969 |
OWFint ox = 0, oy = 0;
|
|
sl@0
|
970 |
OWFint x, y;
|
|
sl@0
|
971 |
|
|
sl@0
|
972 |
DPRINT(("OWF_Image_PointSamplingStretchBlit"));
|
|
sl@0
|
973 |
|
|
sl@0
|
974 |
/* images must be valid */
|
|
sl@0
|
975 |
if (!((src != NULL) && (src->data != NULL) &&
|
|
sl@0
|
976 |
(dst != NULL) && (dst->data != NULL)))
|
|
sl@0
|
977 |
{
|
|
sl@0
|
978 |
return OWF_FALSE;
|
|
sl@0
|
979 |
}
|
|
sl@0
|
980 |
OWF_ASSERT(src->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
981 |
OWF_ASSERT(dst->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
982 |
|
|
sl@0
|
983 |
/* ditto with rectangles, too */
|
|
sl@0
|
984 |
if (!((dstRect != NULL) && (dstRect->width && dstRect->height) &&
|
|
sl@0
|
985 |
(srcRect != NULL) && (srcRect[2] && srcRect[3])))
|
|
sl@0
|
986 |
{
|
|
sl@0
|
987 |
return OWF_FALSE;
|
|
sl@0
|
988 |
}
|
|
sl@0
|
989 |
|
|
sl@0
|
990 |
/* Note: bounds check missing */
|
|
sl@0
|
991 |
|
|
sl@0
|
992 |
if (src->pixelSize != dst->pixelSize)
|
|
sl@0
|
993 |
{
|
|
sl@0
|
994 |
return OWF_FALSE;
|
|
sl@0
|
995 |
}
|
|
sl@0
|
996 |
|
|
sl@0
|
997 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
998 |
{
|
|
sl@0
|
999 |
OWFfloat dx = 0.f, dy = 0.f;
|
|
sl@0
|
1000 |
|
|
sl@0
|
1001 |
/* solve scaling ratios for image */
|
|
sl@0
|
1002 |
dx = (OWFfloat) srcRect[2] / (OWFfloat) dstRect->width;
|
|
sl@0
|
1003 |
dy = (OWFfloat) srcRect[3] / (OWFfloat) dstRect->height;
|
|
sl@0
|
1004 |
|
|
sl@0
|
1005 |
for (y = 0; y < dstRect->height; y++)
|
|
sl@0
|
1006 |
{
|
|
sl@0
|
1007 |
for (x = 0; x < dstRect->width; x++)
|
|
sl@0
|
1008 |
{
|
|
sl@0
|
1009 |
OWFpixel* pixel;
|
|
sl@0
|
1010 |
|
|
sl@0
|
1011 |
/* NOTE This code uses pixel center points to calculate distances
|
|
sl@0
|
1012 |
and factors. Results can differ slightly when pixel corner
|
|
sl@0
|
1013 |
coordinates are used */
|
|
sl@0
|
1014 |
|
|
sl@0
|
1015 |
/* coordinates of nearest pixel in original image */
|
|
sl@0
|
1016 |
ox = (int) floor((((OWFfloat) x + 0.5) * dx) + srcRect[0]);
|
|
sl@0
|
1017 |
oy = (int) floor((((OWFfloat) y + 0.5) * dy) + srcRect[1]);
|
|
sl@0
|
1018 |
|
|
sl@0
|
1019 |
pixel = OWF_Image_GetPixelPtr(src,
|
|
sl@0
|
1020 |
ox,
|
|
sl@0
|
1021 |
oy);
|
|
sl@0
|
1022 |
|
|
sl@0
|
1023 |
OWF_Image_SetPixel(dst,
|
|
sl@0
|
1024 |
dstRect->x + x,
|
|
sl@0
|
1025 |
dstRect->y + y,
|
|
sl@0
|
1026 |
pixel);
|
|
sl@0
|
1027 |
|
|
sl@0
|
1028 |
}
|
|
sl@0
|
1029 |
}
|
|
sl@0
|
1030 |
}
|
|
sl@0
|
1031 |
#else
|
|
sl@0
|
1032 |
if (srcRect[0] < 0 || (srcRect[0] + srcRect[2]) > src->width ||
|
|
sl@0
|
1033 |
srcRect[1] < 0 || (srcRect[1] + srcRect[3]) > src->height)
|
|
sl@0
|
1034 |
{
|
|
sl@0
|
1035 |
/* Source rectangle out of bounds */
|
|
sl@0
|
1036 |
return OWF_FALSE;
|
|
sl@0
|
1037 |
}
|
|
sl@0
|
1038 |
|
|
sl@0
|
1039 |
if (dstRect->x < 0 || (dstRect->x + dstRect->width) > dst->width ||
|
|
sl@0
|
1040 |
dstRect->y < 0 || (dstRect->y + dstRect->height) > dst->height)
|
|
sl@0
|
1041 |
{
|
|
sl@0
|
1042 |
/* Destination rectangle out of bounds */
|
|
sl@0
|
1043 |
return OWF_FALSE;
|
|
sl@0
|
1044 |
}
|
|
sl@0
|
1045 |
|
|
sl@0
|
1046 |
{
|
|
sl@0
|
1047 |
OWFint dxFix, dyFix;
|
|
sl@0
|
1048 |
OWFint xFixStart, yFix;
|
|
sl@0
|
1049 |
OWFuint32 *dstPtr, *srcLinePtr;
|
|
sl@0
|
1050 |
|
|
sl@0
|
1051 |
/* Integer <-> 16.16 fixed point conversion macros */
|
|
sl@0
|
1052 |
#define INT_TO_FIXED_PT(X) ((X) << 16)
|
|
sl@0
|
1053 |
#define FIXED_PT_TO_INT(X) ((X) >> 16)
|
|
sl@0
|
1054 |
|
|
sl@0
|
1055 |
/* Calculate scaling factors in fixed point (with rounding). */
|
|
sl@0
|
1056 |
dxFix = (OWFint)((srcRect[2] * INT_TO_FIXED_PT(1) + (dstRect->width >> 1)) / dstRect->width);
|
|
sl@0
|
1057 |
dyFix = (OWFint)((srcRect[3] * INT_TO_FIXED_PT(1) + (dstRect->height >> 1)) / dstRect->height);
|
|
sl@0
|
1058 |
|
|
sl@0
|
1059 |
/* Calculate fixed point location in source, with half-pixel offset */
|
|
sl@0
|
1060 |
xFixStart = (OWFint)(srcRect[0] * INT_TO_FIXED_PT(1) + (dxFix >> 1));
|
|
sl@0
|
1061 |
yFix = (OWFint)(srcRect[1] * INT_TO_FIXED_PT(1) + (dyFix >> 1));
|
|
sl@0
|
1062 |
|
|
sl@0
|
1063 |
/* Initial target address. */
|
|
sl@0
|
1064 |
dstPtr = (OWFuint32*)dst->data + dstRect->y * dst->width + dstRect->x;
|
|
sl@0
|
1065 |
|
|
sl@0
|
1066 |
for (y = 0; y < dstRect->height; y++)
|
|
sl@0
|
1067 |
{
|
|
sl@0
|
1068 |
OWFint xFix = xFixStart;
|
|
sl@0
|
1069 |
|
|
sl@0
|
1070 |
oy = FIXED_PT_TO_INT(yFix);
|
|
sl@0
|
1071 |
srcLinePtr = (OWFuint32*)src->data + oy * src->width;
|
|
sl@0
|
1072 |
|
|
sl@0
|
1073 |
for (x = 0; x < dstRect->width; x++)
|
|
sl@0
|
1074 |
{
|
|
sl@0
|
1075 |
ox = FIXED_PT_TO_INT(xFix);
|
|
sl@0
|
1076 |
dstPtr[x] = srcLinePtr[ox];
|
|
sl@0
|
1077 |
xFix += dxFix;
|
|
sl@0
|
1078 |
}
|
|
sl@0
|
1079 |
|
|
sl@0
|
1080 |
dstPtr += dst->width;
|
|
sl@0
|
1081 |
yFix += dyFix;
|
|
sl@0
|
1082 |
}
|
|
sl@0
|
1083 |
}
|
|
sl@0
|
1084 |
#endif
|
|
sl@0
|
1085 |
return OWF_TRUE;
|
|
sl@0
|
1086 |
}
|
|
sl@0
|
1087 |
|
|
sl@0
|
1088 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1089 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
1090 |
OWF_Image_BilinearStretchBlit(OWF_IMAGE* dst,
|
|
sl@0
|
1091 |
OWF_RECTANGLE* dstRect,
|
|
sl@0
|
1092 |
OWF_IMAGE* src,
|
|
sl@0
|
1093 |
OWFfloat* srcRect)
|
|
sl@0
|
1094 |
{
|
|
sl@0
|
1095 |
OWFint x = 0, y = 0;
|
|
sl@0
|
1096 |
OWFint ox = 0, oy = 0;
|
|
sl@0
|
1097 |
OWFfloat dx = 0.f, dy = 0.f, wx = 0.f, wy = 0.f;
|
|
sl@0
|
1098 |
OWFfloat w[2 * 2];
|
|
sl@0
|
1099 |
OWFpixel* sample[4];
|
|
sl@0
|
1100 |
OWFpixel* pixel = NULL;
|
|
sl@0
|
1101 |
|
|
sl@0
|
1102 |
DPRINT(("OWF_Image_BilinearStretchBlit"));
|
|
sl@0
|
1103 |
|
|
sl@0
|
1104 |
/* images must be valid */
|
|
sl@0
|
1105 |
if (!((src != NULL) && (src->data != NULL) &&
|
|
sl@0
|
1106 |
(dst != NULL) && (dst->data != NULL)))
|
|
sl@0
|
1107 |
{
|
|
sl@0
|
1108 |
return OWF_FALSE;
|
|
sl@0
|
1109 |
}
|
|
sl@0
|
1110 |
OWF_ASSERT(src->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1111 |
OWF_ASSERT(dst->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1112 |
|
|
sl@0
|
1113 |
/* ditto with rectangles, too */
|
|
sl@0
|
1114 |
if (!((dstRect != NULL) && (dstRect->width && dstRect->height) &&
|
|
sl@0
|
1115 |
(srcRect != NULL) && (srcRect[2] && srcRect[3])))
|
|
sl@0
|
1116 |
{
|
|
sl@0
|
1117 |
return OWF_FALSE;
|
|
sl@0
|
1118 |
}
|
|
sl@0
|
1119 |
|
|
sl@0
|
1120 |
if (src->pixelSize != dst->pixelSize)
|
|
sl@0
|
1121 |
{
|
|
sl@0
|
1122 |
return OWF_FALSE;
|
|
sl@0
|
1123 |
}
|
|
sl@0
|
1124 |
|
|
sl@0
|
1125 |
/* solve scaling ratios for image */
|
|
sl@0
|
1126 |
dx = (OWFfloat) srcRect[2] / (OWFfloat) dstRect->width;
|
|
sl@0
|
1127 |
dy = (OWFfloat) srcRect[3] / (OWFfloat) dstRect->height;
|
|
sl@0
|
1128 |
|
|
sl@0
|
1129 |
for (y = 0; y < dstRect->height; y++)
|
|
sl@0
|
1130 |
{
|
|
sl@0
|
1131 |
for (x = 0; x < dstRect->width; x++)
|
|
sl@0
|
1132 |
{
|
|
sl@0
|
1133 |
OWFfloat tempOx, tempOy;
|
|
sl@0
|
1134 |
|
|
sl@0
|
1135 |
/* NOTE This code uses pixel center points to calculate distances
|
|
sl@0
|
1136 |
and factors. Results can differ slightly when pixel corner
|
|
sl@0
|
1137 |
coordinates are used */
|
|
sl@0
|
1138 |
|
|
sl@0
|
1139 |
/* coordinates of nearest pixel in original image */
|
|
sl@0
|
1140 |
tempOx = (((OWFfloat) x + 0.5) * dx) + srcRect[0];
|
|
sl@0
|
1141 |
tempOy = (((OWFfloat) y + 0.5) * dy) + srcRect[1];
|
|
sl@0
|
1142 |
|
|
sl@0
|
1143 |
ox = (int) floor((((OWFfloat) x + 0.5) * dx) + srcRect[0]);
|
|
sl@0
|
1144 |
oy = (int) floor((((OWFfloat) y + 0.5) * dy) + srcRect[1]);
|
|
sl@0
|
1145 |
|
|
sl@0
|
1146 |
/* Distances to nearest pixel, eg. fractional part of coordinate */
|
|
sl@0
|
1147 |
wx = (OWFfloat) ox + 0.5 - tempOx;
|
|
sl@0
|
1148 |
wy = (OWFfloat) oy + 0.5 - tempOy;
|
|
sl@0
|
1149 |
|
|
sl@0
|
1150 |
/* If distance is positive, we should use left or upper pixel for
|
|
sl@0
|
1151 |
* second nearest pixel. */
|
|
sl@0
|
1152 |
if (wx > 0.0)
|
|
sl@0
|
1153 |
{
|
|
sl@0
|
1154 |
ox--;
|
|
sl@0
|
1155 |
wx = 1.0 - wx;
|
|
sl@0
|
1156 |
}
|
|
sl@0
|
1157 |
else
|
|
sl@0
|
1158 |
{
|
|
sl@0
|
1159 |
wx = -wx; /* abs */
|
|
sl@0
|
1160 |
}
|
|
sl@0
|
1161 |
|
|
sl@0
|
1162 |
if (wy > 0.0)
|
|
sl@0
|
1163 |
{
|
|
sl@0
|
1164 |
oy--;
|
|
sl@0
|
1165 |
wy = 1.0 - wy;
|
|
sl@0
|
1166 |
}
|
|
sl@0
|
1167 |
else
|
|
sl@0
|
1168 |
{
|
|
sl@0
|
1169 |
wy = -wy;
|
|
sl@0
|
1170 |
}
|
|
sl@0
|
1171 |
|
|
sl@0
|
1172 |
/* Calculate weights for samples */
|
|
sl@0
|
1173 |
w[0] = (1.0 - wx) * (1.0 - wy);
|
|
sl@0
|
1174 |
w[1] = wx * (1.0 - wy);
|
|
sl@0
|
1175 |
w[2] = (1.0 - wx) * wy;
|
|
sl@0
|
1176 |
w[3] = wx * wy;
|
|
sl@0
|
1177 |
|
|
sl@0
|
1178 |
/* get sample */
|
|
sl@0
|
1179 |
sample[0] = OWF_Image_GetPixelPtr(src, ox + 0, oy + 0);
|
|
sl@0
|
1180 |
sample[1] = OWF_Image_GetPixelPtr(src, ox + 1, oy + 0);
|
|
sl@0
|
1181 |
sample[2] = OWF_Image_GetPixelPtr(src, ox + 0, oy + 1);
|
|
sl@0
|
1182 |
sample[3] = OWF_Image_GetPixelPtr(src, ox + 1, oy + 1);
|
|
sl@0
|
1183 |
|
|
sl@0
|
1184 |
|
|
sl@0
|
1185 |
/* get result pixel */
|
|
sl@0
|
1186 |
pixel = OWF_Image_GetPixelPtr(dst, x, y);
|
|
sl@0
|
1187 |
|
|
sl@0
|
1188 |
/* calculate final color */
|
|
sl@0
|
1189 |
pixel->color.red =
|
|
sl@0
|
1190 |
sample[0]->color.red * w[0] + sample[1]->color.red * w[1] +
|
|
sl@0
|
1191 |
sample[2]->color.red * w[2] + sample[3]->color.red * w[3] + OWF_BILINEAR_ROUNDING_VALUE;
|
|
sl@0
|
1192 |
|
|
sl@0
|
1193 |
pixel->color.green =
|
|
sl@0
|
1194 |
sample[0]->color.green * w[0] + sample[1]->color.green * w[1] +
|
|
sl@0
|
1195 |
sample[2]->color.green * w[2] + sample[3]->color.green * w[3] + OWF_BILINEAR_ROUNDING_VALUE;
|
|
sl@0
|
1196 |
|
|
sl@0
|
1197 |
pixel->color.blue =
|
|
sl@0
|
1198 |
sample[0]->color.blue * w[0] + sample[1]->color.blue * w[1] +
|
|
sl@0
|
1199 |
sample[2]->color.blue * w[2] + sample[3]->color.blue * w[3] + OWF_BILINEAR_ROUNDING_VALUE;
|
|
sl@0
|
1200 |
|
|
sl@0
|
1201 |
pixel->color.alpha =
|
|
sl@0
|
1202 |
sample[0]->color.alpha * w[0] + sample[1]->color.alpha * w[1] +
|
|
sl@0
|
1203 |
sample[2]->color.alpha * w[2] + sample[3]->color.alpha * w[3] + OWF_BILINEAR_ROUNDING_VALUE;
|
|
sl@0
|
1204 |
}
|
|
sl@0
|
1205 |
}
|
|
sl@0
|
1206 |
return OWF_TRUE;
|
|
sl@0
|
1207 |
|
|
sl@0
|
1208 |
}
|
|
sl@0
|
1209 |
|
|
sl@0
|
1210 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1211 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
1212 |
OWF_Image_Stretch(OWF_IMAGE* dst,
|
|
sl@0
|
1213 |
OWF_RECTANGLE* dstRect,
|
|
sl@0
|
1214 |
OWF_IMAGE* src,
|
|
sl@0
|
1215 |
OWFfloat* srcRect,
|
|
sl@0
|
1216 |
OWF_FILTERING filter)
|
|
sl@0
|
1217 |
{
|
|
sl@0
|
1218 |
OWFboolean result = OWF_FALSE;
|
|
sl@0
|
1219 |
|
|
sl@0
|
1220 |
switch (filter)
|
|
sl@0
|
1221 |
{
|
|
sl@0
|
1222 |
case OWF_FILTER_POINT_SAMPLING:
|
|
sl@0
|
1223 |
{
|
|
sl@0
|
1224 |
result = OWF_Image_PointSamplingStretchBlit(dst, dstRect, src,
|
|
sl@0
|
1225 |
srcRect);
|
|
sl@0
|
1226 |
break;
|
|
sl@0
|
1227 |
}
|
|
sl@0
|
1228 |
case OWF_FILTER_BILINEAR:
|
|
sl@0
|
1229 |
{
|
|
sl@0
|
1230 |
result = OWF_Image_BilinearStretchBlit(dst, dstRect, src, srcRect);
|
|
sl@0
|
1231 |
break;
|
|
sl@0
|
1232 |
}
|
|
sl@0
|
1233 |
}
|
|
sl@0
|
1234 |
|
|
sl@0
|
1235 |
return result;
|
|
sl@0
|
1236 |
}
|
|
sl@0
|
1237 |
|
|
sl@0
|
1238 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1239 |
OWF_API_CALL void
|
|
sl@0
|
1240 |
OWF_Image_Clear(OWF_IMAGE* image,
|
|
sl@0
|
1241 |
OWFsubpixel red,
|
|
sl@0
|
1242 |
OWFsubpixel green,
|
|
sl@0
|
1243 |
OWFsubpixel blue,
|
|
sl@0
|
1244 |
OWFsubpixel alpha)
|
|
sl@0
|
1245 |
{
|
|
sl@0
|
1246 |
OWFint i, numPixels;
|
|
sl@0
|
1247 |
OWFpixel* pixels;
|
|
sl@0
|
1248 |
|
|
sl@0
|
1249 |
DPRINT(("OWF_Image_Clear"));
|
|
sl@0
|
1250 |
|
|
sl@0
|
1251 |
OWF_ASSERT(image != 0);
|
|
sl@0
|
1252 |
OWF_ASSERT(image->data != 0);
|
|
sl@0
|
1253 |
OWF_ASSERT(image->format.pixelFormat == OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1254 |
/* Note: image->stride cannot be relied upon to be correct. Assume lines are contiguous. */
|
|
sl@0
|
1255 |
|
|
sl@0
|
1256 |
numPixels = image->width * image->height;
|
|
sl@0
|
1257 |
pixels = (OWFpixel*) image->data;
|
|
sl@0
|
1258 |
|
|
sl@0
|
1259 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
1260 |
for (i = 0; i < numPixels; i++)
|
|
sl@0
|
1261 |
{
|
|
sl@0
|
1262 |
pixels[i].color.red = (OWFsubpixel) red;
|
|
sl@0
|
1263 |
pixels[i].color.green = (OWFsubpixel) green;
|
|
sl@0
|
1264 |
pixels[i].color.blue = (OWFsubpixel) blue;
|
|
sl@0
|
1265 |
pixels[i].color.alpha = (OWFsubpixel) alpha;
|
|
sl@0
|
1266 |
}
|
|
sl@0
|
1267 |
#else
|
|
sl@0
|
1268 |
if (alpha == red && alpha == green && alpha == blue)
|
|
sl@0
|
1269 |
{
|
|
sl@0
|
1270 |
/* If all four bytes are the same, just use memset */
|
|
sl@0
|
1271 |
OWFuint32 clearBytes = numPixels * sizeof(OWFuint32);
|
|
sl@0
|
1272 |
|
|
sl@0
|
1273 |
memset(pixels, alpha, clearBytes);
|
|
sl@0
|
1274 |
}
|
|
sl@0
|
1275 |
else
|
|
sl@0
|
1276 |
{
|
|
sl@0
|
1277 |
/* Otherwise assign each pixel the packed value */
|
|
sl@0
|
1278 |
OWFuint32* pixelPtr = (OWFuint32*)pixels;
|
|
sl@0
|
1279 |
OWFuint32 pixel;
|
|
sl@0
|
1280 |
|
|
sl@0
|
1281 |
pixel = (alpha << ARGB8888_ALPHA_SHIFT) | (red << ARGB8888_RED_SHIFT) |
|
|
sl@0
|
1282 |
(green << ARGB8888_GREEN_SHIFT) | (blue << ARGB8888_BLUE_SHIFT);
|
|
sl@0
|
1283 |
|
|
sl@0
|
1284 |
for (i = 0; i < numPixels; i++)
|
|
sl@0
|
1285 |
{
|
|
sl@0
|
1286 |
pixelPtr[i] = pixel;
|
|
sl@0
|
1287 |
}
|
|
sl@0
|
1288 |
}
|
|
sl@0
|
1289 |
#endif
|
|
sl@0
|
1290 |
}
|
|
sl@0
|
1291 |
|
|
sl@0
|
1292 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1293 |
OWF_API_CALL void
|
|
sl@0
|
1294 |
OWF_Image_PremultiplyAlpha(OWF_IMAGE* image)
|
|
sl@0
|
1295 |
{
|
|
sl@0
|
1296 |
OWFint x, y;
|
|
sl@0
|
1297 |
|
|
sl@0
|
1298 |
DPRINT(("OWF_Image_PremultiplyAlpha"));
|
|
sl@0
|
1299 |
|
|
sl@0
|
1300 |
OWF_ASSERT(image != 0);
|
|
sl@0
|
1301 |
|
|
sl@0
|
1302 |
if (image->format.premultiplied)
|
|
sl@0
|
1303 |
{
|
|
sl@0
|
1304 |
return;
|
|
sl@0
|
1305 |
}
|
|
sl@0
|
1306 |
|
|
sl@0
|
1307 |
/* only for internal format */
|
|
sl@0
|
1308 |
if (image->format.pixelFormat != OWF_IMAGE_ARGB_INTERNAL)
|
|
sl@0
|
1309 |
{
|
|
sl@0
|
1310 |
return;
|
|
sl@0
|
1311 |
}
|
|
sl@0
|
1312 |
|
|
sl@0
|
1313 |
for (y = 0; y < image->height; y++)
|
|
sl@0
|
1314 |
{
|
|
sl@0
|
1315 |
for (x = 0; x < image->width; x++)
|
|
sl@0
|
1316 |
{
|
|
sl@0
|
1317 |
OWFpixel* pixel;
|
|
sl@0
|
1318 |
OWFsubpixel alpha;
|
|
sl@0
|
1319 |
|
|
sl@0
|
1320 |
pixel = OWF_Image_GetPixelPtr(image, x, y);
|
|
sl@0
|
1321 |
|
|
sl@0
|
1322 |
alpha = pixel->color.alpha;
|
|
sl@0
|
1323 |
|
|
sl@0
|
1324 |
if (0 == alpha)
|
|
sl@0
|
1325 |
{
|
|
sl@0
|
1326 |
pixel->color.red =
|
|
sl@0
|
1327 |
pixel->color.green =
|
|
sl@0
|
1328 |
pixel->color.blue = 0;
|
|
sl@0
|
1329 |
}
|
|
sl@0
|
1330 |
else
|
|
sl@0
|
1331 |
{
|
|
sl@0
|
1332 |
pixel->color.red = (pixel->color.red * alpha + OWF_PREMUL_ROUNDING_FACTOR ) /
|
|
sl@0
|
1333 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1334 |
pixel->color.green = (pixel->color.green * alpha + OWF_PREMUL_ROUNDING_FACTOR ) /
|
|
sl@0
|
1335 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1336 |
pixel->color.blue = (pixel->color.blue * alpha + OWF_PREMUL_ROUNDING_FACTOR ) /
|
|
sl@0
|
1337 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1338 |
}
|
|
sl@0
|
1339 |
}
|
|
sl@0
|
1340 |
}
|
|
sl@0
|
1341 |
|
|
sl@0
|
1342 |
image->format.premultiplied = OWF_TRUE;
|
|
sl@0
|
1343 |
}
|
|
sl@0
|
1344 |
|
|
sl@0
|
1345 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1346 |
OWF_API_CALL void
|
|
sl@0
|
1347 |
OWF_Image_UnpremultiplyAlpha(OWF_IMAGE* image)
|
|
sl@0
|
1348 |
{
|
|
sl@0
|
1349 |
OWFint count;
|
|
sl@0
|
1350 |
OWFpixel* pixelPtr;
|
|
sl@0
|
1351 |
|
|
sl@0
|
1352 |
DPRINT(("OWF_Image_UnpremultiplyAlpha"));
|
|
sl@0
|
1353 |
|
|
sl@0
|
1354 |
OWF_ASSERT(image != 0);
|
|
sl@0
|
1355 |
|
|
sl@0
|
1356 |
if (!image->format.premultiplied)
|
|
sl@0
|
1357 |
{
|
|
sl@0
|
1358 |
return;
|
|
sl@0
|
1359 |
}
|
|
sl@0
|
1360 |
|
|
sl@0
|
1361 |
/* only for internal format */
|
|
sl@0
|
1362 |
if (image->format.pixelFormat != OWF_IMAGE_ARGB_INTERNAL)
|
|
sl@0
|
1363 |
{
|
|
sl@0
|
1364 |
return;
|
|
sl@0
|
1365 |
}
|
|
sl@0
|
1366 |
|
|
sl@0
|
1367 |
count = image->width * image->height;
|
|
sl@0
|
1368 |
pixelPtr = (OWFpixel*)image->data;
|
|
sl@0
|
1369 |
|
|
sl@0
|
1370 |
while (count > 0)
|
|
sl@0
|
1371 |
{
|
|
sl@0
|
1372 |
|
|
sl@0
|
1373 |
OWFsubpixel a = pixelPtr->color.alpha;
|
|
sl@0
|
1374 |
|
|
sl@0
|
1375 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
1376 |
OWF_ASSERT(a <= OWF_ALPHA_MAX_VALUE && a >= OWF_ALPHA_MIN_VALUE);
|
|
sl@0
|
1377 |
#endif
|
|
sl@0
|
1378 |
|
|
sl@0
|
1379 |
if (a > OWF_ALPHA_MIN_VALUE)
|
|
sl@0
|
1380 |
{
|
|
sl@0
|
1381 |
OWFsubpixel r = pixelPtr->color.red * OWF_RED_MAX_VALUE / a;
|
|
sl@0
|
1382 |
OWFsubpixel g = pixelPtr->color.green * OWF_GREEN_MAX_VALUE / a;
|
|
sl@0
|
1383 |
OWFsubpixel b = pixelPtr->color.blue * OWF_BLUE_MAX_VALUE / a;
|
|
sl@0
|
1384 |
|
|
sl@0
|
1385 |
pixelPtr->color.red = r;
|
|
sl@0
|
1386 |
pixelPtr->color.green = g;
|
|
sl@0
|
1387 |
pixelPtr->color.blue = b;
|
|
sl@0
|
1388 |
|
|
sl@0
|
1389 |
--count;
|
|
sl@0
|
1390 |
pixelPtr++;
|
|
sl@0
|
1391 |
}
|
|
sl@0
|
1392 |
}
|
|
sl@0
|
1393 |
|
|
sl@0
|
1394 |
image->format.premultiplied = OWF_TRUE;
|
|
sl@0
|
1395 |
}
|
|
sl@0
|
1396 |
|
|
sl@0
|
1397 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1398 |
OWF_API_CALL void
|
|
sl@0
|
1399 |
OWF_Image_Rotate(OWF_IMAGE* dst,
|
|
sl@0
|
1400 |
OWF_IMAGE* src,
|
|
sl@0
|
1401 |
OWF_ROTATION rotation)
|
|
sl@0
|
1402 |
{
|
|
sl@0
|
1403 |
OWFint ox = 0, oy = 0,
|
|
sl@0
|
1404 |
w = 0, h = 0,
|
|
sl@0
|
1405 |
x = 0, y = 0;
|
|
sl@0
|
1406 |
OWFint xx = 0, xy = 0,
|
|
sl@0
|
1407 |
yx = 0, yy = 0;
|
|
sl@0
|
1408 |
|
|
sl@0
|
1409 |
DPRINT(("OWF_Image_Rotate"));
|
|
sl@0
|
1410 |
|
|
sl@0
|
1411 |
OWF_ASSERT(src && src->data);
|
|
sl@0
|
1412 |
OWF_ASSERT(dst && dst->data);
|
|
sl@0
|
1413 |
OWF_ASSERT(src->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1414 |
OWF_ASSERT(dst->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1415 |
|
|
sl@0
|
1416 |
w = src->width;
|
|
sl@0
|
1417 |
h = src->height;
|
|
sl@0
|
1418 |
|
|
sl@0
|
1419 |
switch (rotation)
|
|
sl@0
|
1420 |
{
|
|
sl@0
|
1421 |
case OWF_ROTATION_0:
|
|
sl@0
|
1422 |
{
|
|
sl@0
|
1423 |
/*
|
|
sl@0
|
1424 |
* origin: (0, 0)
|
|
sl@0
|
1425 |
* x-axis: (1, 0)
|
|
sl@0
|
1426 |
* y-axis: (0, 1)
|
|
sl@0
|
1427 |
*/
|
|
sl@0
|
1428 |
ox = 0;
|
|
sl@0
|
1429 |
oy = 0;
|
|
sl@0
|
1430 |
xx = 1;
|
|
sl@0
|
1431 |
xy = 0;
|
|
sl@0
|
1432 |
yx = 0;
|
|
sl@0
|
1433 |
yy = 1;
|
|
sl@0
|
1434 |
break;
|
|
sl@0
|
1435 |
}
|
|
sl@0
|
1436 |
case OWF_ROTATION_90:
|
|
sl@0
|
1437 |
{
|
|
sl@0
|
1438 |
/*
|
|
sl@0
|
1439 |
* origin: (height-1, 0)
|
|
sl@0
|
1440 |
* x-axis: (0, 1)
|
|
sl@0
|
1441 |
* y-axis: (-1, 0)
|
|
sl@0
|
1442 |
*/
|
|
sl@0
|
1443 |
ox = h - 1;
|
|
sl@0
|
1444 |
oy = 0;
|
|
sl@0
|
1445 |
xx = 0;
|
|
sl@0
|
1446 |
xy = 1;
|
|
sl@0
|
1447 |
yx = -1;
|
|
sl@0
|
1448 |
yy = 0;
|
|
sl@0
|
1449 |
break;
|
|
sl@0
|
1450 |
}
|
|
sl@0
|
1451 |
case OWF_ROTATION_180:
|
|
sl@0
|
1452 |
{
|
|
sl@0
|
1453 |
/*
|
|
sl@0
|
1454 |
* origin: (width-1, height-1)
|
|
sl@0
|
1455 |
* x-axis: (-1, 0)
|
|
sl@0
|
1456 |
* y-axis: (0, -1)
|
|
sl@0
|
1457 |
*/
|
|
sl@0
|
1458 |
ox = w - 1;
|
|
sl@0
|
1459 |
oy = h - 1;
|
|
sl@0
|
1460 |
xx = -1;
|
|
sl@0
|
1461 |
xy = 0;
|
|
sl@0
|
1462 |
yx = 0;
|
|
sl@0
|
1463 |
yy = -1;
|
|
sl@0
|
1464 |
break;
|
|
sl@0
|
1465 |
}
|
|
sl@0
|
1466 |
case OWF_ROTATION_270:
|
|
sl@0
|
1467 |
{
|
|
sl@0
|
1468 |
/*
|
|
sl@0
|
1469 |
* origin: (0, height-1)
|
|
sl@0
|
1470 |
* x-axis: (0, -1)
|
|
sl@0
|
1471 |
* y-axis: (1, 0)
|
|
sl@0
|
1472 |
*/
|
|
sl@0
|
1473 |
ox = 0;
|
|
sl@0
|
1474 |
oy = w - 1;
|
|
sl@0
|
1475 |
xx = 0;
|
|
sl@0
|
1476 |
xy = -1;
|
|
sl@0
|
1477 |
yx = 1;
|
|
sl@0
|
1478 |
yy = 0;
|
|
sl@0
|
1479 |
break;
|
|
sl@0
|
1480 |
|
|
sl@0
|
1481 |
}
|
|
sl@0
|
1482 |
}
|
|
sl@0
|
1483 |
|
|
sl@0
|
1484 |
for (y = 0; y < h; y++)
|
|
sl@0
|
1485 |
{
|
|
sl@0
|
1486 |
for (x = 0; x < w; x++)
|
|
sl@0
|
1487 |
{
|
|
sl@0
|
1488 |
/*
|
|
sl@0
|
1489 |
* O = [ox oy]' X = [xx xy]' Y = [yx yy]'
|
|
sl@0
|
1490 |
*
|
|
sl@0
|
1491 |
* p_dst(x_src,y_src) = O + x_src*X + y_src*Y
|
|
sl@0
|
1492 |
*/
|
|
sl@0
|
1493 |
OWF_Image_SetPixel(dst,
|
|
sl@0
|
1494 |
ox + x * xx + y * yx,
|
|
sl@0
|
1495 |
oy + x * xy + y * yy,
|
|
sl@0
|
1496 |
OWF_Image_GetPixelPtr(src, x, y));
|
|
sl@0
|
1497 |
}
|
|
sl@0
|
1498 |
}
|
|
sl@0
|
1499 |
}
|
|
sl@0
|
1500 |
|
|
sl@0
|
1501 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1502 |
OWF_API_CALL void
|
|
sl@0
|
1503 |
OWF_Image_Flip(OWF_IMAGE* image,
|
|
sl@0
|
1504 |
OWF_FLIP_DIRECTION dir)
|
|
sl@0
|
1505 |
{
|
|
sl@0
|
1506 |
OWFint x, y;
|
|
sl@0
|
1507 |
|
|
sl@0
|
1508 |
DPRINT(("OWF_Image_Flip"));
|
|
sl@0
|
1509 |
|
|
sl@0
|
1510 |
if (!image)
|
|
sl@0
|
1511 |
{
|
|
sl@0
|
1512 |
return;
|
|
sl@0
|
1513 |
}
|
|
sl@0
|
1514 |
OWF_ASSERT(image->format.pixelFormat==OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1515 |
|
|
sl@0
|
1516 |
if (dir & OWF_FLIP_VERTICALLY)
|
|
sl@0
|
1517 |
{
|
|
sl@0
|
1518 |
OWFint h = image->height/2;
|
|
sl@0
|
1519 |
|
|
sl@0
|
1520 |
for (y = 0; y < h; y++)
|
|
sl@0
|
1521 |
{
|
|
sl@0
|
1522 |
for (x = 0; x < image->width; x++)
|
|
sl@0
|
1523 |
{
|
|
sl@0
|
1524 |
OWFpixel pix;
|
|
sl@0
|
1525 |
|
|
sl@0
|
1526 |
OWF_Image_GetPixel(image, x, y, &pix);
|
|
sl@0
|
1527 |
OWF_Image_SetPixel(image, x, y,
|
|
sl@0
|
1528 |
OWF_Image_GetPixelPtr(image,
|
|
sl@0
|
1529 |
x,
|
|
sl@0
|
1530 |
image->height - 1 - y
|
|
sl@0
|
1531 |
));
|
|
sl@0
|
1532 |
OWF_Image_SetPixel(image, x, image->height - 1 - y, &pix);
|
|
sl@0
|
1533 |
}
|
|
sl@0
|
1534 |
}
|
|
sl@0
|
1535 |
}
|
|
sl@0
|
1536 |
|
|
sl@0
|
1537 |
if (dir & OWF_FLIP_HORIZONTALLY)
|
|
sl@0
|
1538 |
{
|
|
sl@0
|
1539 |
OWFint w = image->width/2;
|
|
sl@0
|
1540 |
|
|
sl@0
|
1541 |
for (y = 0; y < image->height; y++)
|
|
sl@0
|
1542 |
{
|
|
sl@0
|
1543 |
for (x = 0; x < w; x++)
|
|
sl@0
|
1544 |
{
|
|
sl@0
|
1545 |
OWFpixel pix;
|
|
sl@0
|
1546 |
|
|
sl@0
|
1547 |
OWF_Image_GetPixel(image, x, y, &pix);
|
|
sl@0
|
1548 |
OWF_Image_SetPixel(image, x, y,
|
|
sl@0
|
1549 |
OWF_Image_GetPixelPtr(image,
|
|
sl@0
|
1550 |
image->width - 1 - x,
|
|
sl@0
|
1551 |
y
|
|
sl@0
|
1552 |
));
|
|
sl@0
|
1553 |
OWF_Image_SetPixel(image, image->width - 1 - x, y, &pix);
|
|
sl@0
|
1554 |
}
|
|
sl@0
|
1555 |
}
|
|
sl@0
|
1556 |
}
|
|
sl@0
|
1557 |
}
|
|
sl@0
|
1558 |
|
|
sl@0
|
1559 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1560 |
#define BLENDER_INNER_LOOP_BEGIN \
|
|
sl@0
|
1561 |
OWFint rowCount = drect.height; \
|
|
sl@0
|
1562 |
while (rowCount > 0) { \
|
|
sl@0
|
1563 |
OWFint colCount = drect.width; \
|
|
sl@0
|
1564 |
while (colCount > 0) {
|
|
sl@0
|
1565 |
|
|
sl@0
|
1566 |
#define BLENDER_INNER_LOOP_END \
|
|
sl@0
|
1567 |
srcPtr ++; \
|
|
sl@0
|
1568 |
dstPtr ++; \
|
|
sl@0
|
1569 |
maskPtr++; \
|
|
sl@0
|
1570 |
--colCount; \
|
|
sl@0
|
1571 |
} \
|
|
sl@0
|
1572 |
srcPtr += srcLineDelta; \
|
|
sl@0
|
1573 |
dstPtr += dstLineDelta; \
|
|
sl@0
|
1574 |
maskPtr += maskLineDelta; \
|
|
sl@0
|
1575 |
--rowCount; \
|
|
sl@0
|
1576 |
}
|
|
sl@0
|
1577 |
|
|
sl@0
|
1578 |
#define BLENDER_INNER_LOOP_END_NO_MASK \
|
|
sl@0
|
1579 |
srcPtr ++; \
|
|
sl@0
|
1580 |
dstPtr ++; \
|
|
sl@0
|
1581 |
--colCount; \
|
|
sl@0
|
1582 |
} \
|
|
sl@0
|
1583 |
srcPtr += srcLineDelta; \
|
|
sl@0
|
1584 |
dstPtr += dstLineDelta; \
|
|
sl@0
|
1585 |
--rowCount; \
|
|
sl@0
|
1586 |
}
|
|
sl@0
|
1587 |
|
|
sl@0
|
1588 |
#define SA srcPtr->color.alpha
|
|
sl@0
|
1589 |
#define SR srcPtr->color.red
|
|
sl@0
|
1590 |
#define SG srcPtr->color.green
|
|
sl@0
|
1591 |
#define SB srcPtr->color.blue
|
|
sl@0
|
1592 |
|
|
sl@0
|
1593 |
#define DA dstPtr->color.alpha
|
|
sl@0
|
1594 |
#define DR dstPtr->color.red
|
|
sl@0
|
1595 |
#define DG dstPtr->color.green
|
|
sl@0
|
1596 |
#define DB dstPtr->color.blue
|
|
sl@0
|
1597 |
|
|
sl@0
|
1598 |
#define MA *maskPtr
|
|
sl@0
|
1599 |
#define GA blend->globalAlpha
|
|
sl@0
|
1600 |
|
|
sl@0
|
1601 |
OWF_API_CALL void
|
|
sl@0
|
1602 |
OWF_Image_Blend(OWF_BLEND_INFO* blend,
|
|
sl@0
|
1603 |
OWF_TRANSPARENCY transparency)
|
|
sl@0
|
1604 |
{
|
|
sl@0
|
1605 |
OWF_IMAGE* dst;
|
|
sl@0
|
1606 |
OWF_IMAGE* src;
|
|
sl@0
|
1607 |
OWF_IMAGE* mask;
|
|
sl@0
|
1608 |
OWF_RECTANGLE* srcRect;
|
|
sl@0
|
1609 |
OWF_RECTANGLE* dstRect;
|
|
sl@0
|
1610 |
OWF_RECTANGLE bounds, srect, drect, rect;
|
|
sl@0
|
1611 |
OWFint srcLineDelta, dstLineDelta, maskLineDelta;
|
|
sl@0
|
1612 |
OWFpixel* srcPtr;
|
|
sl@0
|
1613 |
OWFpixel* dstPtr;
|
|
sl@0
|
1614 |
OWFsubpixel* maskPtr;
|
|
sl@0
|
1615 |
|
|
sl@0
|
1616 |
|
|
sl@0
|
1617 |
/* preparation */
|
|
sl@0
|
1618 |
OWF_ASSERT(blend);
|
|
sl@0
|
1619 |
DPRINT(("OWF_Image_Blend: transparency = %d", transparency));
|
|
sl@0
|
1620 |
/* Mask must be set if mask-transparency is used */
|
|
sl@0
|
1621 |
OWF_ASSERT(((transparency & OWF_TRANSPARENCY_MASK) && blend->mask) ||
|
|
sl@0
|
1622 |
!(transparency & OWF_TRANSPARENCY_MASK));
|
|
sl@0
|
1623 |
|
|
sl@0
|
1624 |
OWF_ASSERT(blend->source.image->format.pixelFormat == OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1625 |
OWF_ASSERT(blend->destination.image->format.pixelFormat == OWF_IMAGE_ARGB_INTERNAL);
|
|
sl@0
|
1626 |
if (blend->mask)
|
|
sl@0
|
1627 |
{
|
|
sl@0
|
1628 |
OWF_ASSERT(blend->mask->format.pixelFormat == OWF_IMAGE_L32);
|
|
sl@0
|
1629 |
}
|
|
sl@0
|
1630 |
|
|
sl@0
|
1631 |
dst = blend->destination.image;
|
|
sl@0
|
1632 |
src = blend->source.image;
|
|
sl@0
|
1633 |
mask = blend->mask;
|
|
sl@0
|
1634 |
dstRect = blend->destination.rectangle;
|
|
sl@0
|
1635 |
srcRect = blend->source.rectangle;
|
|
sl@0
|
1636 |
|
|
sl@0
|
1637 |
/* this is actually asserted above */
|
|
sl@0
|
1638 |
if (OWF_TRANSPARENCY_MASK == (transparency & OWF_TRANSPARENCY_MASK) &&
|
|
sl@0
|
1639 |
NULL == mask)
|
|
sl@0
|
1640 |
{
|
|
sl@0
|
1641 |
return;
|
|
sl@0
|
1642 |
}
|
|
sl@0
|
1643 |
|
|
sl@0
|
1644 |
OWF_Rect_Set(&bounds, 0, 0, dst->width, dst->height);
|
|
sl@0
|
1645 |
/* NOTE: src and dst rects should be of same size!!! */
|
|
sl@0
|
1646 |
OWF_Rect_Set(&rect,
|
|
sl@0
|
1647 |
dstRect->x, dstRect->y,
|
|
sl@0
|
1648 |
dstRect->width, dstRect->height);
|
|
sl@0
|
1649 |
OWF_Rect_Set(&srect,
|
|
sl@0
|
1650 |
srcRect->x, srcRect->y,
|
|
sl@0
|
1651 |
srcRect->width, srcRect->height);
|
|
sl@0
|
1652 |
|
|
sl@0
|
1653 |
/* clip destination rectangle against bounds */
|
|
sl@0
|
1654 |
if (!OWF_Rect_Clip(&drect, &rect, &bounds))
|
|
sl@0
|
1655 |
{
|
|
sl@0
|
1656 |
return;
|
|
sl@0
|
1657 |
}
|
|
sl@0
|
1658 |
|
|
sl@0
|
1659 |
/* adjust source rectangle if needed */
|
|
sl@0
|
1660 |
if (drect.x > rect.x)
|
|
sl@0
|
1661 |
{
|
|
sl@0
|
1662 |
OWFint dx = drect.x - rect.x;
|
|
sl@0
|
1663 |
srect.x += dx;
|
|
sl@0
|
1664 |
srect.width -= dx;
|
|
sl@0
|
1665 |
}
|
|
sl@0
|
1666 |
|
|
sl@0
|
1667 |
if (drect.y > rect.y)
|
|
sl@0
|
1668 |
{
|
|
sl@0
|
1669 |
OWFint dy = drect.y - rect.y;
|
|
sl@0
|
1670 |
srect.y += dy;
|
|
sl@0
|
1671 |
srect.height -= dy;
|
|
sl@0
|
1672 |
}
|
|
sl@0
|
1673 |
|
|
sl@0
|
1674 |
if (drect.width < srect.width)
|
|
sl@0
|
1675 |
{
|
|
sl@0
|
1676 |
srect.width = drect.width;
|
|
sl@0
|
1677 |
}
|
|
sl@0
|
1678 |
|
|
sl@0
|
1679 |
if (drect.height < srect.height)
|
|
sl@0
|
1680 |
{
|
|
sl@0
|
1681 |
srect.height = drect.height;
|
|
sl@0
|
1682 |
}
|
|
sl@0
|
1683 |
|
|
sl@0
|
1684 |
|
|
sl@0
|
1685 |
srcPtr = (OWFpixel*) src->data;
|
|
sl@0
|
1686 |
srcPtr += srect.y * src->width + srect.x;
|
|
sl@0
|
1687 |
dstPtr = (OWFpixel*) dst->data;
|
|
sl@0
|
1688 |
dstPtr += drect.y * dst->width + drect.x;
|
|
sl@0
|
1689 |
|
|
sl@0
|
1690 |
if (mask)
|
|
sl@0
|
1691 |
{
|
|
sl@0
|
1692 |
maskPtr = (OWFsubpixel*) mask->data + srect.y * mask->width + srect.x;
|
|
sl@0
|
1693 |
maskLineDelta = mask->width - drect.width;
|
|
sl@0
|
1694 |
}
|
|
sl@0
|
1695 |
else
|
|
sl@0
|
1696 |
{
|
|
sl@0
|
1697 |
maskPtr = 0;
|
|
sl@0
|
1698 |
maskLineDelta = 0;
|
|
sl@0
|
1699 |
}
|
|
sl@0
|
1700 |
srcLineDelta = src->width - srect.width;
|
|
sl@0
|
1701 |
dstLineDelta = dst->width - drect.width;
|
|
sl@0
|
1702 |
|
|
sl@0
|
1703 |
/* inner loops */
|
|
sl@0
|
1704 |
switch (transparency)
|
|
sl@0
|
1705 |
{
|
|
sl@0
|
1706 |
case OWF_TRANSPARENCY_NONE:
|
|
sl@0
|
1707 |
{
|
|
sl@0
|
1708 |
/*
|
|
sl@0
|
1709 |
rgb = src.rgb
|
|
sl@0
|
1710 |
alpha = 1
|
|
sl@0
|
1711 |
*/
|
|
sl@0
|
1712 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1713 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
1714 |
DR = SR;
|
|
sl@0
|
1715 |
DG = SG;
|
|
sl@0
|
1716 |
DB = SB;
|
|
sl@0
|
1717 |
DA = OWF_FULLY_OPAQUE;
|
|
sl@0
|
1718 |
#else
|
|
sl@0
|
1719 |
*(OWFuint32*)dstPtr = *(OWFuint32*)srcPtr | ARGB8888_ALPHA_MASK;
|
|
sl@0
|
1720 |
#endif
|
|
sl@0
|
1721 |
BLENDER_INNER_LOOP_END_NO_MASK;
|
|
sl@0
|
1722 |
break;
|
|
sl@0
|
1723 |
}
|
|
sl@0
|
1724 |
|
|
sl@0
|
1725 |
case OWF_TRANSPARENCY_GLOBAL_ALPHA:
|
|
sl@0
|
1726 |
{
|
|
sl@0
|
1727 |
/*
|
|
sl@0
|
1728 |
rgb = src.rgb * elem.alpha + dst.rgb * (1 - elem.alpha)
|
|
sl@0
|
1729 |
alpha = elem.alpha + dst.alpha * (1 - elem.alpha)
|
|
sl@0
|
1730 |
*/
|
|
sl@0
|
1731 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1732 |
DR = (SR * GA + DR * (OWF_FULLY_OPAQUE - GA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1733 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1734 |
DG = (SG * GA + DG * (OWF_FULLY_OPAQUE - GA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1735 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1736 |
DB = (SB * GA + DB * (OWF_FULLY_OPAQUE - GA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1737 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1738 |
DA = GA + (DA * (OWF_FULLY_OPAQUE - GA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1739 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1740 |
BLENDER_INNER_LOOP_END_NO_MASK;
|
|
sl@0
|
1741 |
break;
|
|
sl@0
|
1742 |
}
|
|
sl@0
|
1743 |
|
|
sl@0
|
1744 |
case OWF_TRANSPARENCY_SOURCE_ALPHA:
|
|
sl@0
|
1745 |
{
|
|
sl@0
|
1746 |
#ifndef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
1747 |
OWFuint32 redBlueMask = (ARGB8888_RED_MASK | ARGB8888_BLUE_MASK);
|
|
sl@0
|
1748 |
OWFuint32 alphaGreenMask = (ARGB8888_ALPHA_MASK | ARGB8888_GREEN_MASK);
|
|
sl@0
|
1749 |
OWFuint32 halfRedBlue = 0x00800080;
|
|
sl@0
|
1750 |
#endif
|
|
sl@0
|
1751 |
/*
|
|
sl@0
|
1752 |
rgb = src.rgb + dst.rgb * (1 - src.alpha)
|
|
sl@0
|
1753 |
alpha = src.alpha + dst.alpha * (1 - src.alpha)
|
|
sl@0
|
1754 |
*/
|
|
sl@0
|
1755 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1756 |
#ifdef OWF_IMAGE_INTERNAL_PIXEL_IS_FLOAT
|
|
sl@0
|
1757 |
DR = SR + (DR * (OWF_FULLY_OPAQUE - SA) + OWF_BLEND_ROUNDING_VALUE) / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1758 |
DG = SG + (DG * (OWF_FULLY_OPAQUE - SA) + OWF_BLEND_ROUNDING_VALUE) / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1759 |
DB = SB + (DB * (OWF_FULLY_OPAQUE - SA) + OWF_BLEND_ROUNDING_VALUE) / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1760 |
DA = SA + (DA * (OWF_FULLY_OPAQUE - SA) + OWF_BLEND_ROUNDING_VALUE) / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1761 |
#else
|
|
sl@0
|
1762 |
{
|
|
sl@0
|
1763 |
OWFuint32 srcP = *(OWFuint32*)srcPtr;
|
|
sl@0
|
1764 |
OWFuint8 srcA = srcP >> ARGB8888_ALPHA_SHIFT;
|
|
sl@0
|
1765 |
|
|
sl@0
|
1766 |
if (srcA == OWF_ALPHA_MAX_VALUE)
|
|
sl@0
|
1767 |
{
|
|
sl@0
|
1768 |
/* Fully opaque source pixel */
|
|
sl@0
|
1769 |
*(OWFuint32*)dstPtr = srcP;
|
|
sl@0
|
1770 |
}
|
|
sl@0
|
1771 |
else
|
|
sl@0
|
1772 |
{
|
|
sl@0
|
1773 |
if (srcA)
|
|
sl@0
|
1774 |
{
|
|
sl@0
|
1775 |
/* Not fully transparent source pixel. Algorithm after Jim Blinn */
|
|
sl@0
|
1776 |
OWFuint32 mask = 0xFF - srcA;
|
|
sl@0
|
1777 |
OWFuint32 dstP = *(OWFuint32*)dstPtr;
|
|
sl@0
|
1778 |
OWFuint32 blend;
|
|
sl@0
|
1779 |
|
|
sl@0
|
1780 |
blend = mask * (dstP & redBlueMask) + halfRedBlue;
|
|
sl@0
|
1781 |
srcP += ((blend + ((blend >> 8) & redBlueMask) >> 8)) & redBlueMask;
|
|
sl@0
|
1782 |
blend = mask * ((dstP >> 8) & redBlueMask) + halfRedBlue;
|
|
sl@0
|
1783 |
srcP += (blend + ((blend >> 8) & redBlueMask)) & alphaGreenMask;
|
|
sl@0
|
1784 |
|
|
sl@0
|
1785 |
*(OWFuint32*)dstPtr = srcP;
|
|
sl@0
|
1786 |
}
|
|
sl@0
|
1787 |
}
|
|
sl@0
|
1788 |
}
|
|
sl@0
|
1789 |
#endif
|
|
sl@0
|
1790 |
BLENDER_INNER_LOOP_END_NO_MASK;
|
|
sl@0
|
1791 |
break;
|
|
sl@0
|
1792 |
}
|
|
sl@0
|
1793 |
|
|
sl@0
|
1794 |
case OWF_TRANSPARENCY_MASK:
|
|
sl@0
|
1795 |
{
|
|
sl@0
|
1796 |
/*
|
|
sl@0
|
1797 |
rgb = src.rgb * mask.alpha + dst.rgb * (1 - mask.alpha)
|
|
sl@0
|
1798 |
alpha = mask.alpha + dst.alpha * (1 - mask.alpha)
|
|
sl@0
|
1799 |
*/
|
|
sl@0
|
1800 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1801 |
DR = (SR * MA + DR * (OWF_FULLY_OPAQUE - MA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1802 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1803 |
DG = (SG * MA + DG * (OWF_FULLY_OPAQUE - MA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1804 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1805 |
DB = (SB * MA + DB * (OWF_FULLY_OPAQUE - MA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1806 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1807 |
DA = MA + (DA * (OWF_FULLY_OPAQUE - MA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1808 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1809 |
BLENDER_INNER_LOOP_END;
|
|
sl@0
|
1810 |
break;
|
|
sl@0
|
1811 |
}
|
|
sl@0
|
1812 |
|
|
sl@0
|
1813 |
case OWF_TRANSPARENCY_GLOBAL_ALPHA | OWF_TRANSPARENCY_SOURCE_ALPHA:
|
|
sl@0
|
1814 |
{
|
|
sl@0
|
1815 |
/*
|
|
sl@0
|
1816 |
rgb = src.rgb * elem.a + dst.rgb * (1 - src.a * elem.a)
|
|
sl@0
|
1817 |
a = src.a * elem.a + dst.a * (1 - src.a * elem.a)
|
|
sl@0
|
1818 |
*/
|
|
sl@0
|
1819 |
OWFsubpixel SAEA;
|
|
sl@0
|
1820 |
|
|
sl@0
|
1821 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1822 |
SAEA = SA * GA / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1823 |
DR = (SR * GA + DR * (OWF_FULLY_OPAQUE - SAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1824 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1825 |
DG = (SG * GA + DG * (OWF_FULLY_OPAQUE - SAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1826 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1827 |
DB = (SB * GA + DB * (OWF_FULLY_OPAQUE - SAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1828 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1829 |
DA = SAEA + (DA * (OWF_FULLY_OPAQUE - SAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1830 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1831 |
BLENDER_INNER_LOOP_END_NO_MASK;
|
|
sl@0
|
1832 |
break;
|
|
sl@0
|
1833 |
}
|
|
sl@0
|
1834 |
|
|
sl@0
|
1835 |
case OWF_TRANSPARENCY_GLOBAL_ALPHA | OWF_TRANSPARENCY_MASK:
|
|
sl@0
|
1836 |
{
|
|
sl@0
|
1837 |
/*
|
|
sl@0
|
1838 |
rgb = src.rgb * mask.a * elem.a + dst.rgb * (1 - mask.a * elem.a)
|
|
sl@0
|
1839 |
a = mask.a * elem.a + dest.a * (1 - mask.a * elem.a)
|
|
sl@0
|
1840 |
*/
|
|
sl@0
|
1841 |
OWFsubpixel MAEA;
|
|
sl@0
|
1842 |
|
|
sl@0
|
1843 |
BLENDER_INNER_LOOP_BEGIN;
|
|
sl@0
|
1844 |
MAEA = MA * GA / OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1845 |
DR = (SR * MAEA + DR * (OWF_FULLY_OPAQUE - MAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1846 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1847 |
DG = (SG * MAEA + DG * (OWF_FULLY_OPAQUE - MAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1848 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1849 |
DB = (SB * MAEA + DB * (OWF_FULLY_OPAQUE - MAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1850 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1851 |
DA = MAEA + (DA * (OWF_FULLY_OPAQUE - MAEA) + OWF_BLEND_ROUNDING_VALUE) /
|
|
sl@0
|
1852 |
OWF_ALPHA_MAX_VALUE;
|
|
sl@0
|
1853 |
//No need to check with OWF_ALPHA_MIN_VALUE as it is zero
|
|
sl@0
|
1854 |
OWF_ASSERT(GA <= OWF_ALPHA_MAX_VALUE);
|
|
sl@0
|
1855 |
BLENDER_INNER_LOOP_END;
|
|
sl@0
|
1856 |
break;
|
|
sl@0
|
1857 |
}
|
|
sl@0
|
1858 |
|
|
sl@0
|
1859 |
default:
|
|
sl@0
|
1860 |
{
|
|
sl@0
|
1861 |
DPRINT(("OWF_Image_Blend: whooops. invalid blending mode\n"));
|
|
sl@0
|
1862 |
abort();
|
|
sl@0
|
1863 |
break;
|
|
sl@0
|
1864 |
}
|
|
sl@0
|
1865 |
}
|
|
sl@0
|
1866 |
}
|
|
sl@0
|
1867 |
|
|
sl@0
|
1868 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1869 |
OWF_API_CALL void*
|
|
sl@0
|
1870 |
OWF_Image_AllocData(OWF_DISPCTX dc, OWFint width, OWFint height, OWF_PIXEL_FORMAT pixelFormat)
|
|
sl@0
|
1871 |
{
|
|
sl@0
|
1872 |
OWF_IMAGE_FORMAT imgf;
|
|
sl@0
|
1873 |
OWFint stride;
|
|
sl@0
|
1874 |
|
|
sl@0
|
1875 |
DPRINT(("OWF_Image_AllocData"));
|
|
sl@0
|
1876 |
|
|
sl@0
|
1877 |
/* kludge. GetStride need pixelFormat. */
|
|
sl@0
|
1878 |
imgf.pixelFormat = pixelFormat;
|
|
sl@0
|
1879 |
imgf.rowPadding = OWF_Image_GetFormatPadding(pixelFormat);
|
|
sl@0
|
1880 |
stride = OWF_Image_GetStride(width, &imgf, 0);
|
|
sl@0
|
1881 |
|
|
sl@0
|
1882 |
OWF_ASSERT (width > 0 && height > 0);
|
|
sl@0
|
1883 |
|
|
sl@0
|
1884 |
if (stride == 0)
|
|
sl@0
|
1885 |
{
|
|
sl@0
|
1886 |
return NULL;
|
|
sl@0
|
1887 |
}
|
|
sl@0
|
1888 |
|
|
sl@0
|
1889 |
if (dc)
|
|
sl@0
|
1890 |
{
|
|
sl@0
|
1891 |
return OWF_DisplayContext_ScratchBuffer_Allocate(dc, height * stride);
|
|
sl@0
|
1892 |
}
|
|
sl@0
|
1893 |
|
|
sl@0
|
1894 |
return xalloc(1, height * stride);
|
|
sl@0
|
1895 |
}
|
|
sl@0
|
1896 |
|
|
sl@0
|
1897 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1898 |
OWF_API_CALL void
|
|
sl@0
|
1899 |
OWF_Image_FreeData(OWF_DISPCTX dc, void** data)
|
|
sl@0
|
1900 |
{
|
|
sl@0
|
1901 |
DPRINT(("OWF_Image_FreeData"));
|
|
sl@0
|
1902 |
|
|
sl@0
|
1903 |
if (*data)
|
|
sl@0
|
1904 |
{
|
|
sl@0
|
1905 |
if (dc)
|
|
sl@0
|
1906 |
{
|
|
sl@0
|
1907 |
OWF_DisplayContext_ScratchBuffer_Destroy(dc, *data);
|
|
sl@0
|
1908 |
}
|
|
sl@0
|
1909 |
else
|
|
sl@0
|
1910 |
{
|
|
sl@0
|
1911 |
xfree(*data);
|
|
sl@0
|
1912 |
}
|
|
sl@0
|
1913 |
}
|
|
sl@0
|
1914 |
*data = NULL;
|
|
sl@0
|
1915 |
}
|
|
sl@0
|
1916 |
|
|
sl@0
|
1917 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1918 |
OWF_API_CALL OWFint
|
|
sl@0
|
1919 |
OWF_Image_GetFormatPixelSize(OWF_PIXEL_FORMAT format)
|
|
sl@0
|
1920 |
{
|
|
sl@0
|
1921 |
DPRINT(("OWF_Image_GetFormatPixelSize"));
|
|
sl@0
|
1922 |
|
|
sl@0
|
1923 |
switch (format)
|
|
sl@0
|
1924 |
{
|
|
sl@0
|
1925 |
case OWF_IMAGE_ARGB_INTERNAL:
|
|
sl@0
|
1926 |
{
|
|
sl@0
|
1927 |
return sizeof(OWFpixel);
|
|
sl@0
|
1928 |
}
|
|
sl@0
|
1929 |
|
|
sl@0
|
1930 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
1931 |
case OWF_IMAGE_XRGB8888:
|
|
sl@0
|
1932 |
case OWF_IMAGE_L32:
|
|
sl@0
|
1933 |
{
|
|
sl@0
|
1934 |
return 4;
|
|
sl@0
|
1935 |
}
|
|
sl@0
|
1936 |
|
|
sl@0
|
1937 |
case OWF_IMAGE_RGB888:
|
|
sl@0
|
1938 |
{
|
|
sl@0
|
1939 |
return 3;
|
|
sl@0
|
1940 |
}
|
|
sl@0
|
1941 |
|
|
sl@0
|
1942 |
case OWF_IMAGE_RGB565:
|
|
sl@0
|
1943 |
case OWF_IMAGE_L16:
|
|
sl@0
|
1944 |
{
|
|
sl@0
|
1945 |
return 2;
|
|
sl@0
|
1946 |
}
|
|
sl@0
|
1947 |
|
|
sl@0
|
1948 |
case OWF_IMAGE_L8:
|
|
sl@0
|
1949 |
{
|
|
sl@0
|
1950 |
return 1;
|
|
sl@0
|
1951 |
}
|
|
sl@0
|
1952 |
|
|
sl@0
|
1953 |
case OWF_IMAGE_L1:
|
|
sl@0
|
1954 |
{
|
|
sl@0
|
1955 |
/* Use negative numbers for divisor, e.g., -8 = 1/8. */
|
|
sl@0
|
1956 |
/* L1 is 1 bit alpha, LSB->MSB, each row padded to 32-bit
|
|
sl@0
|
1957 |
* boundary. */
|
|
sl@0
|
1958 |
return -8;
|
|
sl@0
|
1959 |
}
|
|
sl@0
|
1960 |
default:
|
|
sl@0
|
1961 |
{
|
|
sl@0
|
1962 |
return 0;
|
|
sl@0
|
1963 |
}
|
|
sl@0
|
1964 |
}
|
|
sl@0
|
1965 |
}
|
|
sl@0
|
1966 |
|
|
sl@0
|
1967 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
1968 |
OWF_API_CALL OWFint
|
|
sl@0
|
1969 |
OWF_Image_GetFormatPadding(OWF_PIXEL_FORMAT format)
|
|
sl@0
|
1970 |
{
|
|
sl@0
|
1971 |
OWFint padding = 1;
|
|
sl@0
|
1972 |
|
|
sl@0
|
1973 |
DPRINT(("OWF_Image_GetFormatPadding"));
|
|
sl@0
|
1974 |
|
|
sl@0
|
1975 |
switch (format)
|
|
sl@0
|
1976 |
{
|
|
sl@0
|
1977 |
case OWF_IMAGE_ARGB_INTERNAL:
|
|
sl@0
|
1978 |
{
|
|
sl@0
|
1979 |
padding = sizeof(OWFpixel);
|
|
sl@0
|
1980 |
break;
|
|
sl@0
|
1981 |
}
|
|
sl@0
|
1982 |
|
|
sl@0
|
1983 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
1984 |
case OWF_IMAGE_XRGB8888:
|
|
sl@0
|
1985 |
case OWF_IMAGE_L32:
|
|
sl@0
|
1986 |
{
|
|
sl@0
|
1987 |
padding = 4;
|
|
sl@0
|
1988 |
break;
|
|
sl@0
|
1989 |
}
|
|
sl@0
|
1990 |
|
|
sl@0
|
1991 |
/*
|
|
sl@0
|
1992 |
case OWF_IMAGE_RGB888:
|
|
sl@0
|
1993 |
{
|
|
sl@0
|
1994 |
return 3;
|
|
sl@0
|
1995 |
}
|
|
sl@0
|
1996 |
*/
|
|
sl@0
|
1997 |
|
|
sl@0
|
1998 |
case OWF_IMAGE_RGB565:
|
|
sl@0
|
1999 |
case OWF_IMAGE_L16:
|
|
sl@0
|
2000 |
{
|
|
sl@0
|
2001 |
padding = 2;
|
|
sl@0
|
2002 |
break;
|
|
sl@0
|
2003 |
}
|
|
sl@0
|
2004 |
|
|
sl@0
|
2005 |
case OWF_IMAGE_L8:
|
|
sl@0
|
2006 |
{
|
|
sl@0
|
2007 |
padding = 1;
|
|
sl@0
|
2008 |
break;
|
|
sl@0
|
2009 |
}
|
|
sl@0
|
2010 |
|
|
sl@0
|
2011 |
case OWF_IMAGE_L1:
|
|
sl@0
|
2012 |
{
|
|
sl@0
|
2013 |
/* Use negative numbers for divisor, e.g., -8 = 1/8. */
|
|
sl@0
|
2014 |
/* L1 is 1 bit alpha, LSB->MSB, each row padded to 32-bit
|
|
sl@0
|
2015 |
* boundary. */
|
|
sl@0
|
2016 |
padding = 4;
|
|
sl@0
|
2017 |
break;
|
|
sl@0
|
2018 |
}
|
|
sl@0
|
2019 |
default:
|
|
sl@0
|
2020 |
{
|
|
sl@0
|
2021 |
OWF_ASSERT(0);
|
|
sl@0
|
2022 |
break;
|
|
sl@0
|
2023 |
}
|
|
sl@0
|
2024 |
}
|
|
sl@0
|
2025 |
|
|
sl@0
|
2026 |
|
|
sl@0
|
2027 |
return padding;
|
|
sl@0
|
2028 |
}
|
|
sl@0
|
2029 |
|
|
sl@0
|
2030 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
2031 |
OWF_API_CALL void
|
|
sl@0
|
2032 |
OWF_Image_SwapWidthAndHeight(OWF_IMAGE* image)
|
|
sl@0
|
2033 |
{
|
|
sl@0
|
2034 |
DPRINT(("OWF_Image_SwapWidthAndHeight"));
|
|
sl@0
|
2035 |
|
|
sl@0
|
2036 |
/* swap w & h. Note that original stride is not restored if swap back. */
|
|
sl@0
|
2037 |
image->width ^= image->height;
|
|
sl@0
|
2038 |
image->height ^= image->width;
|
|
sl@0
|
2039 |
image->width ^= image->height;
|
|
sl@0
|
2040 |
|
|
sl@0
|
2041 |
image->stride = OWF_Image_GetStride(image->width, &image->format, 0);
|
|
sl@0
|
2042 |
}
|
|
sl@0
|
2043 |
|
|
sl@0
|
2044 |
/*----------------------------------------------------------------------------*/
|
|
sl@0
|
2045 |
OWF_API_CALL OWFboolean
|
|
sl@0
|
2046 |
OWF_Image_ConvertMask(OWF_IMAGE* output, OWF_IMAGE* input)
|
|
sl@0
|
2047 |
{
|
|
sl@0
|
2048 |
OWFboolean result = OWF_TRUE;
|
|
sl@0
|
2049 |
void* srcLinePtr;
|
|
sl@0
|
2050 |
OWFsubpixel* dstLinePtr;
|
|
sl@0
|
2051 |
OWFint countY;
|
|
sl@0
|
2052 |
|
|
sl@0
|
2053 |
DPRINT(("OWF_Image_ConvertMask:"));
|
|
sl@0
|
2054 |
DPRINT((" Converting mask from stream format to internal 8-bit"));
|
|
sl@0
|
2055 |
|
|
sl@0
|
2056 |
OWF_ASSERT(input);
|
|
sl@0
|
2057 |
OWF_ASSERT(output);
|
|
sl@0
|
2058 |
|
|
sl@0
|
2059 |
srcLinePtr = input->data;
|
|
sl@0
|
2060 |
dstLinePtr = (OWFsubpixel*) output->data;
|
|
sl@0
|
2061 |
|
|
sl@0
|
2062 |
for (countY = input->height; countY; countY--)
|
|
sl@0
|
2063 |
{
|
|
sl@0
|
2064 |
OWFsubpixel* dstData = dstLinePtr;
|
|
sl@0
|
2065 |
|
|
sl@0
|
2066 |
switch (input->format.pixelFormat)
|
|
sl@0
|
2067 |
{
|
|
sl@0
|
2068 |
case OWF_IMAGE_L1:
|
|
sl@0
|
2069 |
{
|
|
sl@0
|
2070 |
OWFint countX;
|
|
sl@0
|
2071 |
OWFuint8* srcData = (OWFuint8*) srcLinePtr;
|
|
sl@0
|
2072 |
|
|
sl@0
|
2073 |
DPRINT(("1-bit alpha, width = %d, height = %d",
|
|
sl@0
|
2074 |
input->width, input->height));
|
|
sl@0
|
2075 |
|
|
sl@0
|
2076 |
for (countX = 0; countX < input->width; countX++)
|
|
sl@0
|
2077 |
{
|
|
sl@0
|
2078 |
/*
|
|
sl@0
|
2079 |
* alpha pixel ordering is LSB -> MSB
|
|
sl@0
|
2080 |
*
|
|
sl@0
|
2081 |
* byte# |----- byte 0 ----|----- byte 1-----|--
|
|
sl@0
|
2082 |
* bit# | 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 |
|
|
sl@0
|
2083 |
* pix# | 7 6 5 4 3 2 1 0 | f e d c b a 9 8 | ...
|
|
sl@0
|
2084 |
*/
|
|
sl@0
|
2085 |
if (srcData[countX >> 3] & (1 << (countX & 7)))
|
|
sl@0
|
2086 |
{
|
|
sl@0
|
2087 |
dstData[countX] = OWF_FULLY_OPAQUE;
|
|
sl@0
|
2088 |
}
|
|
sl@0
|
2089 |
else
|
|
sl@0
|
2090 |
{
|
|
sl@0
|
2091 |
dstData[countX] = OWF_FULLY_TRANSPARENT;
|
|
sl@0
|
2092 |
}
|
|
sl@0
|
2093 |
}
|
|
sl@0
|
2094 |
break;
|
|
sl@0
|
2095 |
}
|
|
sl@0
|
2096 |
case OWF_IMAGE_L8:
|
|
sl@0
|
2097 |
{
|
|
sl@0
|
2098 |
OWFint countX;
|
|
sl@0
|
2099 |
OWFuint8* srcData = (OWFuint8*) srcLinePtr;
|
|
sl@0
|
2100 |
|
|
sl@0
|
2101 |
DPRINT(("8-bit alpha, width = %d, height = %d",
|
|
sl@0
|
2102 |
input->width, input->height));
|
|
sl@0
|
2103 |
|
|
sl@0
|
2104 |
for (countX = 0; countX < input->width; countX++)
|
|
sl@0
|
2105 |
{
|
|
sl@0
|
2106 |
dstData[countX] = srcData[countX] * OWF_FULLY_OPAQUE /
|
|
sl@0
|
2107 |
(OWFfloat) OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
2108 |
}
|
|
sl@0
|
2109 |
break;
|
|
sl@0
|
2110 |
}
|
|
sl@0
|
2111 |
case OWF_IMAGE_ARGB8888:
|
|
sl@0
|
2112 |
{
|
|
sl@0
|
2113 |
/* ARGB image - take the alpha channel and discard
|
|
sl@0
|
2114 |
* everything else */
|
|
sl@0
|
2115 |
OWFint countX;
|
|
sl@0
|
2116 |
OWFuint32* srcData = (OWFuint32*) srcLinePtr;
|
|
sl@0
|
2117 |
|
|
sl@0
|
2118 |
DPRINT(("32-bit ARGB, width = %d, height = %d",
|
|
sl@0
|
2119 |
input->width, input->height));
|
|
sl@0
|
2120 |
|
|
sl@0
|
2121 |
for (countX = 0; countX < input->width; countX++)
|
|
sl@0
|
2122 |
{
|
|
sl@0
|
2123 |
dstData[countX] = (srcData[countX] >> 24) * OWF_FULLY_OPAQUE /
|
|
sl@0
|
2124 |
(OWFfloat) OWF_BYTE_MAX_VALUE;
|
|
sl@0
|
2125 |
}
|
|
sl@0
|
2126 |
break;
|
|
sl@0
|
2127 |
}
|
|
sl@0
|
2128 |
default:
|
|
sl@0
|
2129 |
{
|
|
sl@0
|
2130 |
DPRINT(("Unsupported alpha format, ignoring mask"));
|
|
sl@0
|
2131 |
|
|
sl@0
|
2132 |
result = OWF_FALSE;
|
|
sl@0
|
2133 |
break;
|
|
sl@0
|
2134 |
}
|
|
sl@0
|
2135 |
}
|
|
sl@0
|
2136 |
|
|
sl@0
|
2137 |
dstLinePtr+=output->width;
|
|
sl@0
|
2138 |
/* Presumes that the stride is always whole bytes - eg. a 2x2-pixel mono
|
|
sl@0
|
2139 |
* image takes at least 2 bytes */
|
|
sl@0
|
2140 |
srcLinePtr=(OWFuint8*)srcLinePtr+input->stride;
|
|
sl@0
|
2141 |
}
|
|
sl@0
|
2142 |
return result;
|
|
sl@0
|
2143 |
}
|
|
sl@0
|
2144 |
|
|
sl@0
|
2145 |
#ifdef __cplusplus
|
|
sl@0
|
2146 |
}
|
|
sl@0
|
2147 |
#endif
|