1 /*
2 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "splashscreen_impl.h"
27 #include "splashscreen_gfx_impl.h"
28 #define BUFF_SIZE 1024
29 #ifdef _MSC_VER
30 # ifndef snprintf
31 # define snprintf _snprintf
32 # endif
33 #endif
34 int splashIsVisible = 0;
35
36 Splash *
37 SplashGetInstance()
38 {
39 static Splash splash;
40 static int preInitialized = 0;
41 if (!preInitialized) {
42 memset(&splash, 0, sizeof(Splash));
43 splash.currentFrame = -1;
44 preInitialized = 1;
45 }
46 return &splash;
47 }
48
49 SPLASHEXPORT void
50 SplashSetFileJarName(const char* fileName, const char* jarName) {
51 Splash *splash = SplashGetInstance();
52
53 free(splash->fileName);
54 splash->fileName = SplashConvertStringAlloc(fileName, &splash->fileNameLen);
55
56 free(splash->jarName);
57 splash->jarName = SplashConvertStringAlloc(jarName, &splash->jarNameLen);
58 }
59
60 SPLASHEXPORT void
61 SplashInit()
62 {
63 Splash *splash = SplashGetInstance();
64
65 memset(splash, 0, sizeof(Splash));
66 splash->currentFrame = -1;
67 splash->scaleFactor = 1;
68 initFormat(&splash->imageFormat, QUAD_RED_MASK, QUAD_GREEN_MASK,
69 QUAD_BLUE_MASK, QUAD_ALPHA_MASK);
70 SplashInitPlatform(splash);
71 }
72
73 SPLASHEXPORT void
74 SplashClose()
75 {
76 Splash *splash = SplashGetInstance();
77
78 if (splash->isVisible > 0) {
79 SplashLock(splash);
80 splash->isVisible = -1;
81 SplashClosePlatform(splash);
82 SplashUnlock(splash);
83 }
84 }
85
86 void
87 SplashCleanup(Splash * splash)
88 {
89 int i;
90
91 splash->currentFrame = -1;
92 SplashCleanupPlatform(splash);
93 if (splash->frames) {
94 for (i = 0; i < splash->frameCount; i++) {
95 if (splash->frames[i].bitmapBits) {
96 free(splash->frames[i].bitmapBits);
97 splash->frames[i].bitmapBits = NULL;
98 }
99 }
100 free(splash->frames);
101 splash->frames = NULL;
102 }
103 if (splash->overlayData) {
104 free(splash->overlayData);
105 splash->overlayData = NULL;
106 }
107 SplashSetFileJarName(NULL, NULL);
108 }
109
110 SPLASHEXPORT void
111 SplashSetScaleFactor(float scaleFactor)
112 {
113 Splash *splash = SplashGetInstance();
114 splash->scaleFactor = scaleFactor;
115 }
116
117 void
118 SplashDone(Splash * splash)
119 {
120 SplashCleanup(splash);
121 SplashDonePlatform(splash);
122 }
123
124 int
125 SplashIsStillLooping(Splash * splash)
126 {
127 if (splash->currentFrame < 0) {
128 return 0;
129 }
130 return splash->loopCount != 1 ||
131 splash->currentFrame + 1 < splash->frameCount;
132 }
133
134 void
135 SplashUpdateScreenData(Splash * splash)
136 {
137 ImageRect srcRect, dstRect;
138 if (splash->currentFrame < 0) {
139 return;
140 }
141
142 initRect(&srcRect, 0, 0, splash->width, splash->height, 1,
143 splash->width * sizeof(rgbquad_t),
144 splash->frames[splash->currentFrame].bitmapBits, &splash->imageFormat);
145 if (splash->screenData) {
146 free(splash->screenData);
147 }
148 splash->screenStride = splash->width * splash->screenFormat.depthBytes;
149 if (splash->byteAlignment > 1) {
150 splash->screenStride =
151 (splash->screenStride + splash->byteAlignment - 1) &
152 ~(splash->byteAlignment - 1);
153 }
154 splash->screenData = malloc(splash->height * splash->screenStride);
155 initRect(&dstRect, 0, 0, splash->width, splash->height, 1,
156 splash->screenStride, splash->screenData, &splash->screenFormat);
157 if (splash->overlayData) {
158 convertRect2(&srcRect, &dstRect, CVT_BLEND, &splash->overlayRect);
159 }
160 else {
161 convertRect(&srcRect, &dstRect, CVT_COPY);
162 }
163 }
164
165 void
166 SplashNextFrame(Splash * splash)
167 {
168 if (splash->currentFrame < 0) {
169 return;
170 }
171 do {
172 if (!SplashIsStillLooping(splash)) {
173 return;
174 }
175 splash->time += splash->frames[splash->currentFrame].delay;
176 if (++splash->currentFrame >= splash->frameCount) {
177 splash->currentFrame = 0;
178 if (splash->loopCount > 0) {
179 splash->loopCount--;
180 }
181 }
182 } while (splash->time + splash->frames[splash->currentFrame].delay -
183 SplashTime() <= 0);
184 }
185
186 int
187 BitmapToYXBandedRectangles(ImageRect * pSrcRect, RECT_T * out)
188 {
189 RECT_T *pPrevLine = NULL, *pFirst = out, *pThis = pFirst;
190 int i, j, i0;
191 int length;
192
193 for (j = 0; j < pSrcRect->numLines; j++) {
194
195 /* generate data for a scanline */
196
197 byte_t *pSrc = (byte_t *) pSrcRect->pBits + j * pSrcRect->stride;
198 RECT_T *pLine = pThis;
199
200 i = 0;
201
202 do {
203 while (i < pSrcRect->numSamples &&
204 getRGBA(pSrc, pSrcRect->format) < ALPHA_THRESHOLD) {
205 pSrc += pSrcRect->depthBytes;
206 ++i;
207 }
208 if (i >= pSrcRect->numSamples) {
209 break;
210 }
211 i0 = i;
212 while (i < pSrcRect->numSamples &&
213 getRGBA(pSrc, pSrcRect->format) >= ALPHA_THRESHOLD) {
214 pSrc += pSrcRect->depthBytes;
215 ++i;
216 }
217 RECT_SET(*pThis, i0, j, i - i0, 1);
218 ++pThis;
219 } while (i < pSrcRect->numSamples);
220
221 /* check if the previous scanline is exactly the same, merge if so
222 (this is the only optimization we can use for YXBanded rectangles, and win32 supports
223 YXBanded only */
224
225 length = pThis - pLine;
226 if (pPrevLine && pLine - pPrevLine == length) {
227 for (i = 0; i < length && RECT_EQ_X(pPrevLine[i], pLine[i]); ++i) {
228 }
229 if (i == pLine - pPrevLine) {
230 // do merge
231 for (i = 0; i < length; i++) {
232 RECT_INC_HEIGHT(pPrevLine[i]);
233 }
234 pThis = pLine;
235 continue;
236 }
237 }
238 /* or else use the generated scanline */
239
240 pPrevLine = pLine;
241 }
242 return pThis - pFirst;
243 }
244
245 typedef struct FILEFORMAT
246 {
247 int sign;
248 int (*decodeStream) (Splash * splash, SplashStream * stream);
249 } FILEFORMAT;
250
251 static const FILEFORMAT formats[] = {
252 {0x47, SplashDecodeGifStream},
253 {0x89, SplashDecodePngStream},
254 {0xFF, SplashDecodeJpegStream}
255 };
256
257 static int
258 SplashLoadStream(SplashStream * stream)
259 {
260 int success = 0;
261 int c;
262 size_t i;
263
264 Splash *splash = SplashGetInstance();
265 if (splash->isVisible < 0) {
266 return 0;
267 }
268
269 SplashLock(splash);
270
271 /* the formats we support can be easily distinguished by the first byte */
272 c = stream->peek(stream);
273 if (c != -1) {
274 for (i = 0; i < sizeof(formats) / sizeof(FILEFORMAT); i++) {
275 if (c == formats[i].sign) {
276 success = formats[i].decodeStream(splash, stream);
277 break;
278 }
279 }
280 }
281 stream->close(stream);
282
283 if (!success) { // failed to decode
284 if (splash->isVisible == 0) {
285 SplashCleanup(splash);
286 }
287 SplashUnlock(splash); // SplashClose locks
288 if (splash->isVisible == 0) {
289 SplashClose();
290 }
291 }
292 else {
293 splash->currentFrame = 0;
294 if (splash->isVisible == 0) {
295 SplashStart(splash);
296 } else {
297 SplashReconfigure(splash);
298 splash->time = SplashTime();
299 }
300 SplashUnlock(splash);
301 }
302 return success;
303 }
304
305 SPLASHEXPORT int
306 SplashLoadFile(const char *filename)
307 {
308 SplashStream stream;
309 return SplashStreamInitFile(&stream, filename) &&
310 SplashLoadStream(&stream);
311 }
312
313 SPLASHEXPORT int
314 SplashLoadMemory(void *data, int size)
315 {
316 SplashStream stream;
317 return SplashStreamInitMemory(&stream, data, size) &&
318 SplashLoadStream(&stream);
319 }
320
321 /* SplashStart MUST be called from under the lock */
322
323 void
324 SplashStart(Splash * splash)
325 {
326 if (splash->isVisible == 0) {
327 SplashCreateThread(splash);
328 splash->isVisible = 1;
329 }
330 }
331
332 /* SplashStream functions */
333
334 static int readFile(void* pStream, void* pData, int nBytes) {
335 FILE* f = ((SplashStream*)pStream)->arg.stdio.f;
336 return fread(pData, 1, nBytes, f);
337 }
338 static int peekFile(void* pStream) {
339 FILE* f = ((SplashStream*)pStream)->arg.stdio.f;
340 int c = fgetc(f);
341 if (c != EOF) {
342 ungetc(c, f);
343 return c;
344 } else {
345 return -1;
346 }
347 }
348
349 static void closeFile(void* pStream) {
350 FILE* f = ((SplashStream*)pStream)->arg.stdio.f;
351 fclose(f);
352 }
353
354 static int readMem(void* pStream, void* pData, int nBytes) {
355 unsigned char* pSrc = (unsigned char*)(((SplashStream*)pStream)->arg.mem.pData);
356 unsigned char* pSrcEnd = (unsigned char*)(((SplashStream*)pStream)->arg.mem.pDataEnd);
357 if (nBytes > pSrcEnd - pSrc) {
358 nBytes = pSrcEnd - pSrc;
359 }
360 if (nBytes>0) {
361 memcpy(pData, pSrc, nBytes);
362 pSrc += nBytes;
363 ((SplashStream*)pStream)->arg.mem.pData = (void*)pSrc;
364 }
365 return nBytes;
366 }
367
368 static int peekMem(void* pStream) {
369 unsigned char* pSrc = (unsigned char*)(((SplashStream*)pStream)->arg.mem.pData);
370 unsigned char* pSrcEnd = (unsigned char*)(((SplashStream*)pStream)->arg.mem.pDataEnd);
371 if (pSrc >= pSrcEnd) {
372 return -1;
373 } else {
374 return (int)*pSrc;
375 }
376 }
377
378 static void closeMem(void* pStream) {
379 }
380
381 int SplashStreamInitFile(SplashStream * pStream, const char* filename) {
382 pStream->arg.stdio.f = fopen(filename, "rb");
383 pStream->read = readFile;
384 pStream->peek = peekFile;
385 pStream->close = closeFile;
386 return pStream->arg.stdio.f != 0;
387 }
388
389 int SplashStreamInitMemory(SplashStream * pStream, void* pData, int size) {
390 pStream->arg.mem.pData = (unsigned char*)pData;
391 pStream->arg.mem.pDataEnd = (unsigned char*)pData + size;
392 pStream->read = readMem;
393 pStream->peek = peekMem;
394 pStream->close = closeMem;
395 return 1;
396 }
397
398 SPLASHEXPORT int
399 SplashGetScaledImgNameMaxPstfixLen(const char *fileName){
400 return strlen(fileName) + strlen("@100pct") + 1;
401 }
402
403 jboolean GetScaledImageName(const char *fileName,char *scaleImageName,
404 float *scaleFactor, const size_t scaledImageLength) {
405 FILE *fp = NULL;
406 if (*scaleFactor > 1.0) {
407 char strDpi[BUFF_SIZE];
408 char *dupFileName = strdup(fileName);
409 char *fileExtension = strrchr(dupFileName, '.');
410 size_t length = 0;
411 int retVal = 0;
412 if((*scaleFactor * 100) != ((int)(*scaleFactor)) * 100) {
413 snprintf(strDpi, BUFF_SIZE, "%s%d%s", "@", (int)(*scaleFactor * 100), "pct");
414 } else {
415 snprintf(strDpi, BUFF_SIZE, "%s%d%s", "@", (int)(*scaleFactor), "x");
416 }
417 /*File is missing extension */
418 if (fileExtension == NULL) {
419 length = strlen(dupFileName) +
420 strlen(strDpi) + 1;
421 if (length > scaledImageLength) {
422 *scaleFactor = 1;
423 free(dupFileName);
424 return JNI_FALSE;
425 }
426 retVal = snprintf(scaleImageName, length, "%s%s", dupFileName,
427 strDpi);
428 if (retVal < 0 || (retVal != length - 1)) {
429 *scaleFactor = 1;
430 free(dupFileName);
431 return JNI_FALSE;
432 }
433 } else {
434 int length_Without_Ext = fileExtension - dupFileName;
435 length = length_Without_Ext + strlen(strDpi) +
436 strlen(fileExtension) + 1;
437 if (length > scaledImageLength) {
438 *scaleFactor = 1;
439 free(dupFileName);
440 return JNI_FALSE;
441 }
442 retVal = snprintf(scaleImageName, length, "%.*s%s%s",
443 length_Without_Ext, dupFileName, strDpi, fileExtension);
444 if (retVal < 0 || (retVal != length - 1)) {
445 *scaleFactor = 1;
446 free(dupFileName);
447 return JNI_FALSE;
448 }
449 }
450 free(dupFileName);
451 if (!(fp = fopen(scaleImageName, "r"))) {
452 *scaleFactor = 1;
453 return JNI_FALSE;
454 }
455 fclose(fp);
456 return JNI_TRUE;
457 }
458 return JNI_FALSE;
459 }
460