Commit | Line | Data |
---|---|---|
a534180c TAOSP |
1 | // |
2 | // Copyright 2006 The Android Open Source Project | |
3 | // | |
4 | // Build resource files from raw assets. | |
5 | // | |
6 | ||
7 | #define PNG_INTERNAL | |
8 | ||
9 | #include "Images.h" | |
10 | ||
11 | #include <utils/ResourceTypes.h> | |
12 | #include <utils/ByteOrder.h> | |
13 | ||
14 | #include <png.h> | |
15 | ||
16 | #define NOISY(x) //x | |
17 | ||
18 | static void | |
19 | png_write_aapt_file(png_structp png_ptr, png_bytep data, png_size_t length) | |
20 | { | |
21 | status_t err = ((AaptFile*)png_ptr->io_ptr)->writeData(data, length); | |
22 | if (err != NO_ERROR) { | |
23 | png_error(png_ptr, "Write Error"); | |
24 | } | |
25 | } | |
26 | ||
27 | ||
28 | static void | |
29 | png_flush_aapt_file(png_structp png_ptr) | |
30 | { | |
31 | } | |
32 | ||
33 | // This holds an image as 8bpp RGBA. | |
34 | struct image_info | |
35 | { | |
36 | image_info() : rows(NULL), is9Patch(false), allocRows(NULL) { } | |
37 | ~image_info() { | |
38 | if (rows && rows != allocRows) { | |
39 | free(rows); | |
40 | } | |
41 | if (allocRows) { | |
42 | for (int i=0; i<(int)allocHeight; i++) { | |
43 | free(allocRows[i]); | |
44 | } | |
45 | free(allocRows); | |
46 | } | |
981d1579 MN |
47 | free(info9Patch.xDivs); |
48 | free(info9Patch.yDivs); | |
49 | free(info9Patch.colors); | |
a534180c TAOSP |
50 | } |
51 | ||
52 | png_uint_32 width; | |
53 | png_uint_32 height; | |
54 | png_bytepp rows; | |
55 | ||
56 | // 9-patch info. | |
57 | bool is9Patch; | |
58 | Res_png_9patch info9Patch; | |
59 | ||
60 | png_uint_32 allocHeight; | |
61 | png_bytepp allocRows; | |
62 | }; | |
63 | ||
64 | static void read_png(const char* imageName, | |
65 | png_structp read_ptr, png_infop read_info, | |
66 | image_info* outImageInfo) | |
67 | { | |
68 | int color_type; | |
69 | int bit_depth, interlace_type, compression_type; | |
70 | int i; | |
71 | ||
72 | png_read_info(read_ptr, read_info); | |
73 | ||
74 | png_get_IHDR(read_ptr, read_info, &outImageInfo->width, | |
75 | &outImageInfo->height, &bit_depth, &color_type, | |
76 | &interlace_type, &compression_type, NULL); | |
77 | ||
78 | //printf("Image %s:\n", imageName); | |
79 | //printf("color_type=%d, bit_depth=%d, interlace_type=%d, compression_type=%d\n", | |
80 | // color_type, bit_depth, interlace_type, compression_type); | |
81 | ||
82 | if (color_type == PNG_COLOR_TYPE_PALETTE) | |
83 | png_set_palette_to_rgb(read_ptr); | |
84 | ||
85 | if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) | |
86 | png_set_gray_1_2_4_to_8(read_ptr); | |
87 | ||
88 | if (png_get_valid(read_ptr, read_info, PNG_INFO_tRNS)) { | |
89 | //printf("Has PNG_INFO_tRNS!\n"); | |
90 | png_set_tRNS_to_alpha(read_ptr); | |
91 | } | |
92 | ||
93 | if (bit_depth == 16) | |
94 | png_set_strip_16(read_ptr); | |
95 | ||
96 | if ((color_type&PNG_COLOR_MASK_ALPHA) == 0) | |
97 | png_set_add_alpha(read_ptr, 0xFF, PNG_FILLER_AFTER); | |
98 | ||
99 | if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) | |
100 | png_set_gray_to_rgb(read_ptr); | |
101 | ||
102 | png_read_update_info(read_ptr, read_info); | |
103 | ||
104 | outImageInfo->rows = (png_bytepp)malloc( | |
105 | outImageInfo->height * png_sizeof(png_bytep)); | |
106 | outImageInfo->allocHeight = outImageInfo->height; | |
107 | outImageInfo->allocRows = outImageInfo->rows; | |
108 | ||
109 | png_set_rows(read_ptr, read_info, outImageInfo->rows); | |
110 | ||
111 | for (i = 0; i < (int)outImageInfo->height; i++) | |
112 | { | |
113 | outImageInfo->rows[i] = (png_bytep) | |
114 | malloc(png_get_rowbytes(read_ptr, read_info)); | |
115 | } | |
116 | ||
117 | png_read_image(read_ptr, outImageInfo->rows); | |
118 | ||
119 | png_read_end(read_ptr, read_info); | |
120 | ||
121 | NOISY(printf("Image %s: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", | |
122 | imageName, | |
123 | (int)outImageInfo->width, (int)outImageInfo->height, | |
124 | bit_depth, color_type, | |
125 | interlace_type, compression_type)); | |
126 | ||
127 | png_get_IHDR(read_ptr, read_info, &outImageInfo->width, | |
128 | &outImageInfo->height, &bit_depth, &color_type, | |
129 | &interlace_type, &compression_type, NULL); | |
130 | } | |
131 | ||
132 | static bool is_tick(png_bytep p, bool transparent, const char** outError) | |
133 | { | |
134 | if (transparent) { | |
135 | if (p[3] == 0) { | |
136 | return false; | |
137 | } | |
138 | if (p[3] != 0xff) { | |
139 | *outError = "Frame pixels must be either solid or transparent (not intermediate alphas)"; | |
140 | return false; | |
141 | } | |
142 | if (p[0] != 0 || p[1] != 0 || p[2] != 0) { | |
143 | *outError = "Ticks in transparent frame must be black"; | |
144 | } | |
145 | return true; | |
146 | } | |
147 | ||
148 | if (p[3] != 0xFF) { | |
149 | *outError = "White frame must be a solid color (no alpha)"; | |
150 | } | |
151 | if (p[0] == 0xFF && p[1] == 0xFF && p[2] == 0xFF) { | |
152 | return false; | |
153 | } | |
154 | if (p[0] != 0 || p[1] != 0 || p[2] != 0) { | |
155 | *outError = "Ticks in white frame must be black"; | |
156 | return false; | |
157 | } | |
158 | return true; | |
159 | } | |
160 | ||
161 | enum { | |
162 | TICK_START, | |
163 | TICK_INSIDE_1, | |
164 | TICK_OUTSIDE_1 | |
165 | }; | |
166 | ||
167 | static status_t get_horizontal_ticks( | |
168 | png_bytep row, int width, bool transparent, bool required, | |
169 | int32_t* outLeft, int32_t* outRight, const char** outError, | |
170 | uint8_t* outDivs, bool multipleAllowed) | |
171 | { | |
172 | int i; | |
173 | *outLeft = *outRight = -1; | |
174 | int state = TICK_START; | |
175 | bool found = false; | |
176 | ||
177 | for (i=1; i<width-1; i++) { | |
178 | if (is_tick(row+i*4, transparent, outError)) { | |
179 | if (state == TICK_START || | |
180 | (state == TICK_OUTSIDE_1 && multipleAllowed)) { | |
181 | *outLeft = i-1; | |
182 | *outRight = width-2; | |
183 | found = true; | |
184 | if (outDivs != NULL) { | |
185 | *outDivs += 2; | |
186 | } | |
187 | state = TICK_INSIDE_1; | |
188 | } else if (state == TICK_OUTSIDE_1) { | |
189 | *outError = "Can't have more than one marked region along edge"; | |
190 | *outLeft = i; | |
191 | return UNKNOWN_ERROR; | |
192 | } | |
193 | } else if (*outError == NULL) { | |
194 | if (state == TICK_INSIDE_1) { | |
195 | // We're done with this div. Move on to the next. | |
196 | *outRight = i-1; | |
197 | outRight += 2; | |
198 | outLeft += 2; | |
199 | state = TICK_OUTSIDE_1; | |
200 | } | |
201 | } else { | |
202 | *outLeft = i; | |
203 | return UNKNOWN_ERROR; | |
204 | } | |
205 | } | |
206 | ||
207 | if (required && !found) { | |
208 | *outError = "No marked region found along edge"; | |
209 | *outLeft = -1; | |
210 | return UNKNOWN_ERROR; | |
211 | } | |
212 | ||
213 | return NO_ERROR; | |
214 | } | |
215 | ||
216 | static status_t get_vertical_ticks( | |
217 | png_bytepp rows, int offset, int height, bool transparent, bool required, | |
218 | int32_t* outTop, int32_t* outBottom, const char** outError, | |
219 | uint8_t* outDivs, bool multipleAllowed) | |
220 | { | |
221 | int i; | |
222 | *outTop = *outBottom = -1; | |
223 | int state = TICK_START; | |
224 | bool found = false; | |
225 | ||
226 | for (i=1; i<height-1; i++) { | |
227 | if (is_tick(rows[i]+offset, transparent, outError)) { | |
228 | if (state == TICK_START || | |
229 | (state == TICK_OUTSIDE_1 && multipleAllowed)) { | |
230 | *outTop = i-1; | |
231 | *outBottom = height-2; | |
232 | found = true; | |
233 | if (outDivs != NULL) { | |
234 | *outDivs += 2; | |
235 | } | |
236 | state = TICK_INSIDE_1; | |
237 | } else if (state == TICK_OUTSIDE_1) { | |
238 | *outError = "Can't have more than one marked region along edge"; | |
239 | *outTop = i; | |
240 | return UNKNOWN_ERROR; | |
241 | } | |
242 | } else if (*outError == NULL) { | |
243 | if (state == TICK_INSIDE_1) { | |
244 | // We're done with this div. Move on to the next. | |
245 | *outBottom = i-1; | |
246 | outTop += 2; | |
247 | outBottom += 2; | |
248 | state = TICK_OUTSIDE_1; | |
249 | } | |
250 | } else { | |
251 | *outTop = i; | |
252 | return UNKNOWN_ERROR; | |
253 | } | |
254 | } | |
255 | ||
256 | if (required && !found) { | |
257 | *outError = "No marked region found along edge"; | |
258 | *outTop = -1; | |
259 | return UNKNOWN_ERROR; | |
260 | } | |
261 | ||
262 | return NO_ERROR; | |
263 | } | |
264 | ||
265 | static uint32_t get_color( | |
266 | png_bytepp rows, int left, int top, int right, int bottom) | |
267 | { | |
268 | png_bytep color = rows[top] + left*4; | |
269 | ||
270 | if (left > right || top > bottom) { | |
271 | return Res_png_9patch::TRANSPARENT_COLOR; | |
272 | } | |
273 | ||
274 | while (top <= bottom) { | |
275 | for (int i = left; i <= right; i++) { | |
276 | png_bytep p = rows[top]+i*4; | |
277 | if (color[3] == 0) { | |
278 | if (p[3] != 0) { | |
279 | return Res_png_9patch::NO_COLOR; | |
280 | } | |
281 | } else if (p[0] != color[0] || p[1] != color[1] | |
282 | || p[2] != color[2] || p[3] != color[3]) { | |
283 | return Res_png_9patch::NO_COLOR; | |
284 | } | |
285 | } | |
286 | top++; | |
287 | } | |
288 | ||
289 | if (color[3] == 0) { | |
290 | return Res_png_9patch::TRANSPARENT_COLOR; | |
291 | } | |
292 | return (color[3]<<24) | (color[0]<<16) | (color[1]<<8) | color[2]; | |
293 | } | |
294 | ||
295 | static void select_patch( | |
296 | int which, int front, int back, int size, int* start, int* end) | |
297 | { | |
298 | switch (which) { | |
299 | case 0: | |
300 | *start = 0; | |
301 | *end = front-1; | |
302 | break; | |
303 | case 1: | |
304 | *start = front; | |
305 | *end = back-1; | |
306 | break; | |
307 | case 2: | |
308 | *start = back; | |
309 | *end = size-1; | |
310 | break; | |
311 | } | |
312 | } | |
313 | ||
314 | static uint32_t get_color(image_info* image, int hpatch, int vpatch) | |
315 | { | |
316 | int left, right, top, bottom; | |
317 | select_patch( | |
318 | hpatch, image->info9Patch.xDivs[0], image->info9Patch.xDivs[1], | |
319 | image->width, &left, &right); | |
320 | select_patch( | |
321 | vpatch, image->info9Patch.yDivs[0], image->info9Patch.yDivs[1], | |
322 | image->height, &top, &bottom); | |
323 | //printf("Selecting h=%d v=%d: (%d,%d)-(%d,%d)\n", | |
324 | // hpatch, vpatch, left, top, right, bottom); | |
325 | const uint32_t c = get_color(image->rows, left, top, right, bottom); | |
326 | NOISY(printf("Color in (%d,%d)-(%d,%d): #%08x\n", left, top, right, bottom, c)); | |
327 | return c; | |
328 | } | |
329 | ||
330 | static status_t do_9patch(const char* imageName, image_info* image) | |
331 | { | |
332 | image->is9Patch = true; | |
333 | ||
334 | int W = image->width; | |
335 | int H = image->height; | |
336 | int i, j; | |
337 | ||
12e28f48 TAOSP |
338 | int maxSizeXDivs = W * sizeof(int32_t); |
339 | int maxSizeYDivs = H * sizeof(int32_t); | |
a534180c TAOSP |
340 | int32_t* xDivs = (int32_t*) malloc(maxSizeXDivs); |
341 | int32_t* yDivs = (int32_t*) malloc(maxSizeYDivs); | |
342 | uint8_t numXDivs = 0; | |
343 | uint8_t numYDivs = 0; | |
344 | int8_t numColors; | |
345 | int numRows; | |
346 | int numCols; | |
347 | int top; | |
348 | int left; | |
349 | int right; | |
350 | int bottom; | |
351 | memset(xDivs, -1, maxSizeXDivs); | |
352 | memset(yDivs, -1, maxSizeYDivs); | |
353 | image->info9Patch.paddingLeft = image->info9Patch.paddingRight = | |
354 | image->info9Patch.paddingTop = image->info9Patch.paddingBottom = -1; | |
355 | ||
356 | png_bytep p = image->rows[0]; | |
357 | bool transparent = p[3] == 0; | |
358 | bool hasColor = false; | |
359 | ||
360 | const char* errorMsg = NULL; | |
361 | int errorPixel = -1; | |
4710896d | 362 | const char* errorEdge = NULL; |
a534180c TAOSP |
363 | |
364 | int colorIndex = 0; | |
365 | ||
366 | // Validate size... | |
367 | if (W < 3 || H < 3) { | |
368 | errorMsg = "Image must be at least 3x3 (1x1 without frame) pixels"; | |
369 | goto getout; | |
370 | } | |
371 | ||
372 | // Validate frame... | |
373 | if (!transparent && | |
374 | (p[0] != 0xFF || p[1] != 0xFF || p[2] != 0xFF || p[3] != 0xFF)) { | |
375 | errorMsg = "Must have one-pixel frame that is either transparent or white"; | |
376 | goto getout; | |
377 | } | |
378 | ||
379 | // Find left and right of sizing areas... | |
380 | if (get_horizontal_ticks(p, W, transparent, true, &xDivs[0], | |
381 | &xDivs[1], &errorMsg, &numXDivs, true) != NO_ERROR) { | |
382 | errorPixel = xDivs[0]; | |
383 | errorEdge = "top"; | |
384 | goto getout; | |
385 | } | |
386 | ||
387 | // Find top and bottom of sizing areas... | |
388 | if (get_vertical_ticks(image->rows, 0, H, transparent, true, &yDivs[0], | |
389 | &yDivs[1], &errorMsg, &numYDivs, true) != NO_ERROR) { | |
390 | errorPixel = yDivs[0]; | |
391 | errorEdge = "left"; | |
392 | goto getout; | |
393 | } | |
394 | ||
395 | // Find left and right of padding area... | |
396 | if (get_horizontal_ticks(image->rows[H-1], W, transparent, false, &image->info9Patch.paddingLeft, | |
397 | &image->info9Patch.paddingRight, &errorMsg, NULL, false) != NO_ERROR) { | |
398 | errorPixel = image->info9Patch.paddingLeft; | |
399 | errorEdge = "bottom"; | |
400 | goto getout; | |
401 | } | |
402 | ||
403 | // Find top and bottom of padding area... | |
404 | if (get_vertical_ticks(image->rows, (W-1)*4, H, transparent, false, &image->info9Patch.paddingTop, | |
405 | &image->info9Patch.paddingBottom, &errorMsg, NULL, false) != NO_ERROR) { | |
406 | errorPixel = image->info9Patch.paddingTop; | |
407 | errorEdge = "right"; | |
408 | goto getout; | |
409 | } | |
410 | ||
411 | // Copy patch data into image | |
412 | image->info9Patch.numXDivs = numXDivs; | |
413 | image->info9Patch.numYDivs = numYDivs; | |
414 | image->info9Patch.xDivs = xDivs; | |
415 | image->info9Patch.yDivs = yDivs; | |
416 | ||
417 | // If padding is not yet specified, take values from size. | |
418 | if (image->info9Patch.paddingLeft < 0) { | |
419 | image->info9Patch.paddingLeft = xDivs[0]; | |
420 | image->info9Patch.paddingRight = W - 2 - xDivs[1]; | |
421 | } else { | |
422 | // Adjust value to be correct! | |
423 | image->info9Patch.paddingRight = W - 2 - image->info9Patch.paddingRight; | |
424 | } | |
425 | if (image->info9Patch.paddingTop < 0) { | |
426 | image->info9Patch.paddingTop = yDivs[0]; | |
427 | image->info9Patch.paddingBottom = H - 2 - yDivs[1]; | |
428 | } else { | |
429 | // Adjust value to be correct! | |
430 | image->info9Patch.paddingBottom = H - 2 - image->info9Patch.paddingBottom; | |
431 | } | |
432 | ||
433 | NOISY(printf("Size ticks for %s: x0=%d, x1=%d, y0=%d, y1=%d\n", imageName, | |
434 | image->info9Patch.xDivs[0], image->info9Patch.xDivs[1], | |
435 | image->info9Patch.yDivs[0], image->info9Patch.yDivs[1])); | |
436 | NOISY(printf("padding ticks for %s: l=%d, r=%d, t=%d, b=%d\n", imageName, | |
437 | image->info9Patch.paddingLeft, image->info9Patch.paddingRight, | |
438 | image->info9Patch.paddingTop, image->info9Patch.paddingBottom)); | |
439 | ||
440 | // Remove frame from image. | |
441 | image->rows = (png_bytepp)malloc((H-2) * png_sizeof(png_bytep)); | |
442 | for (i=0; i<(H-2); i++) { | |
443 | image->rows[i] = image->allocRows[i+1]; | |
444 | memmove(image->rows[i], image->rows[i]+4, (W-2)*4); | |
445 | } | |
446 | image->width -= 2; | |
447 | W = image->width; | |
448 | image->height -= 2; | |
449 | H = image->height; | |
450 | ||
451 | // Figure out the number of rows and columns in the N-patch | |
452 | numCols = numXDivs + 1; | |
453 | if (xDivs[0] == 0) { // Column 1 is strechable | |
454 | numCols--; | |
455 | } | |
456 | if (xDivs[numXDivs - 1] == W) { | |
457 | numCols--; | |
458 | } | |
459 | numRows = numYDivs + 1; | |
460 | if (yDivs[0] == 0) { // Row 1 is strechable | |
461 | numRows--; | |
462 | } | |
463 | if (yDivs[numYDivs - 1] == H) { | |
464 | numRows--; | |
465 | } | |
4710896d KR |
466 | |
467 | // Make sure the amount of rows and columns will fit in the number of | |
468 | // colors we can use in the 9-patch format. | |
469 | if (numRows * numCols > 0x7F) { | |
470 | errorMsg = "Too many rows and columns in 9-patch perimeter"; | |
471 | goto getout; | |
472 | } | |
473 | ||
a534180c TAOSP |
474 | numColors = numRows * numCols; |
475 | image->info9Patch.numColors = numColors; | |
476 | image->info9Patch.colors = (uint32_t*)malloc(numColors * sizeof(uint32_t)); | |
477 | ||
478 | // Fill in color information for each patch. | |
479 | ||
480 | uint32_t c; | |
481 | top = 0; | |
482 | ||
483 | // The first row always starts with the top being at y=0 and the bottom | |
484 | // being either yDivs[1] (if yDivs[0]=0) of yDivs[0]. In the former case | |
485 | // the first row is stretchable along the Y axis, otherwise it is fixed. | |
486 | // The last row always ends with the bottom being bitmap.height and the top | |
487 | // being either yDivs[numYDivs-2] (if yDivs[numYDivs-1]=bitmap.height) or | |
488 | // yDivs[numYDivs-1]. In the former case the last row is stretchable along | |
489 | // the Y axis, otherwise it is fixed. | |
490 | // | |
491 | // The first and last columns are similarly treated with respect to the X | |
492 | // axis. | |
493 | // | |
494 | // The above is to help explain some of the special casing that goes on the | |
495 | // code below. | |
496 | ||
497 | // The initial yDiv and whether the first row is considered stretchable or | |
498 | // not depends on whether yDiv[0] was zero or not. | |
499 | for (j = (yDivs[0] == 0 ? 1 : 0); | |
500 | j <= numYDivs && top < H; | |
501 | j++) { | |
502 | if (j == numYDivs) { | |
503 | bottom = H; | |
504 | } else { | |
505 | bottom = yDivs[j]; | |
506 | } | |
507 | left = 0; | |
508 | // The initial xDiv and whether the first column is considered | |
509 | // stretchable or not depends on whether xDiv[0] was zero or not. | |
510 | for (i = xDivs[0] == 0 ? 1 : 0; | |
511 | i <= numXDivs && left < W; | |
512 | i++) { | |
513 | if (i == numXDivs) { | |
514 | right = W; | |
515 | } else { | |
516 | right = xDivs[i]; | |
517 | } | |
518 | c = get_color(image->rows, left, top, right - 1, bottom - 1); | |
519 | image->info9Patch.colors[colorIndex++] = c; | |
520 | NOISY(if (c != Res_png_9patch::NO_COLOR) hasColor = true); | |
521 | left = right; | |
522 | } | |
523 | top = bottom; | |
524 | } | |
525 | ||
526 | assert(colorIndex == numColors); | |
527 | ||
528 | for (i=0; i<numColors; i++) { | |
529 | if (hasColor) { | |
530 | if (i == 0) printf("Colors in %s:\n ", imageName); | |
531 | printf(" #%08x", image->info9Patch.colors[i]); | |
532 | if (i == numColors - 1) printf("\n"); | |
533 | } | |
534 | } | |
535 | ||
536 | image->is9Patch = true; | |
537 | image->info9Patch.deviceToFile(); | |
538 | ||
539 | getout: | |
540 | if (errorMsg) { | |
541 | fprintf(stderr, | |
542 | "ERROR: 9-patch image %s malformed.\n" | |
543 | " %s.\n", imageName, errorMsg); | |
4710896d KR |
544 | if (errorEdge != NULL) { |
545 | if (errorPixel >= 0) { | |
546 | fprintf(stderr, | |
547 | " Found at pixel #%d along %s edge.\n", errorPixel, errorEdge); | |
548 | } else { | |
549 | fprintf(stderr, | |
550 | " Found along %s edge.\n", errorEdge); | |
551 | } | |
a534180c TAOSP |
552 | } |
553 | return UNKNOWN_ERROR; | |
554 | } | |
555 | return NO_ERROR; | |
556 | } | |
557 | ||
558 | static void checkNinePatchSerialization(Res_png_9patch* inPatch, void * data) | |
559 | { | |
560 | if (sizeof(void*) != sizeof(int32_t)) { | |
561 | // can't deserialize on a non-32 bit system | |
562 | return; | |
563 | } | |
564 | size_t patchSize = inPatch->serializedSize(); | |
565 | void * newData = malloc(patchSize); | |
566 | memcpy(newData, data, patchSize); | |
567 | Res_png_9patch* outPatch = inPatch->deserialize(newData); | |
568 | // deserialization is done in place, so outPatch == newData | |
569 | assert(outPatch == newData); | |
570 | assert(outPatch->numXDivs == inPatch->numXDivs); | |
571 | assert(outPatch->numYDivs == inPatch->numYDivs); | |
572 | assert(outPatch->paddingLeft == inPatch->paddingLeft); | |
573 | assert(outPatch->paddingRight == inPatch->paddingRight); | |
574 | assert(outPatch->paddingTop == inPatch->paddingTop); | |
575 | assert(outPatch->paddingBottom == inPatch->paddingBottom); | |
576 | for (int i = 0; i < outPatch->numXDivs; i++) { | |
577 | assert(outPatch->xDivs[i] == inPatch->xDivs[i]); | |
578 | } | |
579 | for (int i = 0; i < outPatch->numYDivs; i++) { | |
580 | assert(outPatch->yDivs[i] == inPatch->yDivs[i]); | |
581 | } | |
582 | for (int i = 0; i < outPatch->numColors; i++) { | |
583 | assert(outPatch->colors[i] == inPatch->colors[i]); | |
584 | } | |
585 | free(newData); | |
586 | } | |
587 | ||
588 | static bool patch_equals(Res_png_9patch& patch1, Res_png_9patch& patch2) { | |
589 | if (!(patch1.numXDivs == patch2.numXDivs && | |
590 | patch1.numYDivs == patch2.numYDivs && | |
591 | patch1.numColors == patch2.numColors && | |
592 | patch1.paddingLeft == patch2.paddingLeft && | |
593 | patch1.paddingRight == patch2.paddingRight && | |
594 | patch1.paddingTop == patch2.paddingTop && | |
595 | patch1.paddingBottom == patch2.paddingBottom)) { | |
596 | return false; | |
597 | } | |
598 | for (int i = 0; i < patch1.numColors; i++) { | |
599 | if (patch1.colors[i] != patch2.colors[i]) { | |
600 | return false; | |
601 | } | |
602 | } | |
603 | for (int i = 0; i < patch1.numXDivs; i++) { | |
604 | if (patch1.xDivs[i] != patch2.xDivs[i]) { | |
605 | return false; | |
606 | } | |
607 | } | |
608 | for (int i = 0; i < patch1.numYDivs; i++) { | |
609 | if (patch1.yDivs[i] != patch2.yDivs[i]) { | |
610 | return false; | |
611 | } | |
612 | } | |
613 | return true; | |
614 | } | |
615 | ||
616 | static void dump_image(int w, int h, png_bytepp rows, int color_type) | |
617 | { | |
618 | int i, j, rr, gg, bb, aa; | |
619 | ||
620 | int bpp; | |
621 | if (color_type == PNG_COLOR_TYPE_PALETTE || color_type == PNG_COLOR_TYPE_GRAY) { | |
622 | bpp = 1; | |
623 | } else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA) { | |
624 | bpp = 2; | |
625 | } else if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { | |
4710896d | 626 | // We use a padding byte even when there is no alpha |
a534180c TAOSP |
627 | bpp = 4; |
628 | } else { | |
629 | printf("Unknown color type %d.\n", color_type); | |
630 | } | |
631 | ||
632 | for (j = 0; j < h; j++) { | |
633 | png_bytep row = rows[j]; | |
634 | for (i = 0; i < w; i++) { | |
635 | rr = row[0]; | |
636 | gg = row[1]; | |
637 | bb = row[2]; | |
638 | aa = row[3]; | |
639 | row += bpp; | |
640 | ||
641 | if (i == 0) { | |
642 | printf("Row %d:", j); | |
643 | } | |
644 | switch (bpp) { | |
645 | case 1: | |
646 | printf(" (%d)", rr); | |
647 | break; | |
648 | case 2: | |
649 | printf(" (%d %d", rr, gg); | |
650 | break; | |
651 | case 3: | |
652 | printf(" (%d %d %d)", rr, gg, bb); | |
653 | break; | |
654 | case 4: | |
655 | printf(" (%d %d %d %d)", rr, gg, bb, aa); | |
656 | break; | |
657 | } | |
658 | if (i == (w - 1)) { | |
659 | NOISY(printf("\n")); | |
660 | } | |
661 | } | |
662 | } | |
663 | } | |
664 | ||
665 | #define MAX(a,b) ((a)>(b)?(a):(b)) | |
666 | #define ABS(a) ((a)<0?-(a):(a)) | |
667 | ||
668 | static void analyze_image(const char *imageName, image_info &imageInfo, int grayscaleTolerance, | |
669 | png_colorp rgbPalette, png_bytep alphaPalette, | |
670 | int *paletteEntries, bool *hasTransparency, int *colorType, | |
671 | png_bytepp outRows) | |
672 | { | |
673 | int w = imageInfo.width; | |
674 | int h = imageInfo.height; | |
675 | int i, j, rr, gg, bb, aa, idx; | |
676 | uint32_t colors[256], col; | |
677 | int num_colors = 0; | |
678 | int maxGrayDeviation = 0; | |
679 | ||
680 | bool isOpaque = true; | |
681 | bool isPalette = true; | |
682 | bool isGrayscale = true; | |
683 | ||
684 | // Scan the entire image and determine if: | |
685 | // 1. Every pixel has R == G == B (grayscale) | |
686 | // 2. Every pixel has A == 255 (opaque) | |
687 | // 3. There are no more than 256 distinct RGBA colors | |
688 | ||
689 | // NOISY(printf("Initial image data:\n")); | |
690 | // dump_image(w, h, imageInfo.rows, PNG_COLOR_TYPE_RGB_ALPHA); | |
691 | ||
692 | for (j = 0; j < h; j++) { | |
693 | png_bytep row = imageInfo.rows[j]; | |
694 | png_bytep out = outRows[j]; | |
695 | for (i = 0; i < w; i++) { | |
696 | rr = *row++; | |
697 | gg = *row++; | |
698 | bb = *row++; | |
699 | aa = *row++; | |
700 | ||
701 | int odev = maxGrayDeviation; | |
702 | maxGrayDeviation = MAX(ABS(rr - gg), maxGrayDeviation); | |
703 | maxGrayDeviation = MAX(ABS(gg - bb), maxGrayDeviation); | |
704 | maxGrayDeviation = MAX(ABS(bb - rr), maxGrayDeviation); | |
705 | if (maxGrayDeviation > odev) { | |
706 | NOISY(printf("New max dev. = %d at pixel (%d, %d) = (%d %d %d %d)\n", | |
707 | maxGrayDeviation, i, j, rr, gg, bb, aa)); | |
708 | } | |
709 | ||
710 | // Check if image is really grayscale | |
711 | if (isGrayscale) { | |
712 | if (rr != gg || rr != bb) { | |
713 | NOISY(printf("Found a non-gray pixel at %d, %d = (%d %d %d %d)\n", | |
714 | i, j, rr, gg, bb, aa)); | |
715 | isGrayscale = false; | |
716 | } | |
717 | } | |
718 | ||
719 | // Check if image is really opaque | |
720 | if (isOpaque) { | |
721 | if (aa != 0xff) { | |
722 | NOISY(printf("Found a non-opaque pixel at %d, %d = (%d %d %d %d)\n", | |
723 | i, j, rr, gg, bb, aa)); | |
724 | isOpaque = false; | |
725 | } | |
726 | } | |
727 | ||
728 | // Check if image is really <= 256 colors | |
729 | if (isPalette) { | |
730 | col = (uint32_t) ((rr << 24) | (gg << 16) | (bb << 8) | aa); | |
731 | bool match = false; | |
732 | for (idx = 0; idx < num_colors; idx++) { | |
733 | if (colors[idx] == col) { | |
734 | match = true; | |
735 | break; | |
736 | } | |
737 | } | |
738 | ||
739 | // Write the palette index for the pixel to outRows optimistically | |
740 | // We might overwrite it later if we decide to encode as gray or | |
741 | // gray + alpha | |
742 | *out++ = idx; | |
743 | if (!match) { | |
744 | if (num_colors == 256) { | |
745 | NOISY(printf("Found 257th color at %d, %d\n", i, j)); | |
746 | isPalette = false; | |
747 | } else { | |
748 | colors[num_colors++] = col; | |
749 | } | |
750 | } | |
751 | } | |
752 | } | |
753 | } | |
754 | ||
755 | *paletteEntries = 0; | |
756 | *hasTransparency = !isOpaque; | |
757 | int bpp = isOpaque ? 3 : 4; | |
758 | int paletteSize = w * h + bpp * num_colors; | |
759 | ||
760 | NOISY(printf("isGrayscale = %s\n", isGrayscale ? "true" : "false")); | |
761 | NOISY(printf("isOpaque = %s\n", isOpaque ? "true" : "false")); | |
762 | NOISY(printf("isPalette = %s\n", isPalette ? "true" : "false")); | |
763 | NOISY(printf("Size w/ palette = %d, gray+alpha = %d, rgb(a) = %d\n", | |
764 | paletteSize, 2 * w * h, bpp * w * h)); | |
765 | NOISY(printf("Max gray deviation = %d, tolerance = %d\n", maxGrayDeviation, grayscaleTolerance)); | |
766 | ||
767 | // Choose the best color type for the image. | |
768 | // 1. Opaque gray - use COLOR_TYPE_GRAY at 1 byte/pixel | |
769 | // 2. Gray + alpha - use COLOR_TYPE_PALETTE if the number of distinct combinations | |
770 | // is sufficiently small, otherwise use COLOR_TYPE_GRAY_ALPHA | |
771 | // 3. RGB(A) - use COLOR_TYPE_PALETTE if the number of distinct colors is sufficiently | |
772 | // small, otherwise use COLOR_TYPE_RGB{_ALPHA} | |
773 | if (isGrayscale) { | |
774 | if (isOpaque) { | |
775 | *colorType = PNG_COLOR_TYPE_GRAY; // 1 byte/pixel | |
776 | } else { | |
777 | // Use a simple heuristic to determine whether using a palette will | |
778 | // save space versus using gray + alpha for each pixel. | |
779 | // This doesn't take into account chunk overhead, filtering, LZ | |
780 | // compression, etc. | |
781 | if (isPalette && (paletteSize < 2 * w * h)) { | |
782 | *colorType = PNG_COLOR_TYPE_PALETTE; // 1 byte/pixel + 4 bytes/color | |
783 | } else { | |
784 | *colorType = PNG_COLOR_TYPE_GRAY_ALPHA; // 2 bytes per pixel | |
785 | } | |
786 | } | |
787 | } else if (isPalette && (paletteSize < bpp * w * h)) { | |
788 | *colorType = PNG_COLOR_TYPE_PALETTE; | |
789 | } else { | |
790 | if (maxGrayDeviation <= grayscaleTolerance) { | |
791 | printf("%s: forcing image to gray (max deviation = %d)\n", imageName, maxGrayDeviation); | |
792 | *colorType = isOpaque ? PNG_COLOR_TYPE_GRAY : PNG_COLOR_TYPE_GRAY_ALPHA; | |
793 | } else { | |
794 | *colorType = isOpaque ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGB_ALPHA; | |
795 | } | |
796 | } | |
797 | ||
798 | // Perform postprocessing of the image or palette data based on the final | |
799 | // color type chosen | |
800 | ||
801 | if (*colorType == PNG_COLOR_TYPE_PALETTE) { | |
802 | // Create separate RGB and Alpha palettes and set the number of colors | |
803 | *paletteEntries = num_colors; | |
804 | ||
805 | // Create the RGB and alpha palettes | |
806 | for (int idx = 0; idx < num_colors; idx++) { | |
807 | col = colors[idx]; | |
808 | rgbPalette[idx].red = (png_byte) ((col >> 24) & 0xff); | |
809 | rgbPalette[idx].green = (png_byte) ((col >> 16) & 0xff); | |
810 | rgbPalette[idx].blue = (png_byte) ((col >> 8) & 0xff); | |
811 | alphaPalette[idx] = (png_byte) (col & 0xff); | |
812 | } | |
813 | } else if (*colorType == PNG_COLOR_TYPE_GRAY || *colorType == PNG_COLOR_TYPE_GRAY_ALPHA) { | |
814 | // If the image is gray or gray + alpha, compact the pixels into outRows | |
815 | for (j = 0; j < h; j++) { | |
816 | png_bytep row = imageInfo.rows[j]; | |
817 | png_bytep out = outRows[j]; | |
818 | for (i = 0; i < w; i++) { | |
819 | rr = *row++; | |
820 | gg = *row++; | |
821 | bb = *row++; | |
822 | aa = *row++; | |
823 | ||
824 | if (isGrayscale) { | |
825 | *out++ = rr; | |
826 | } else { | |
827 | *out++ = (png_byte) (rr * 0.2126f + gg * 0.7152f + bb * 0.0722f); | |
828 | } | |
829 | if (!isOpaque) { | |
830 | *out++ = aa; | |
831 | } | |
832 | } | |
833 | } | |
834 | } | |
835 | } | |
836 | ||
837 | ||
838 | static void write_png(const char* imageName, | |
839 | png_structp write_ptr, png_infop write_info, | |
840 | image_info& imageInfo, int grayscaleTolerance) | |
841 | { | |
842 | bool optimize = true; | |
843 | png_uint_32 width, height; | |
844 | int color_type; | |
845 | int bit_depth, interlace_type, compression_type; | |
846 | int i; | |
847 | ||
848 | png_unknown_chunk unknowns[1]; | |
981d1579 | 849 | unknowns[0].data = NULL; |
a534180c TAOSP |
850 | |
851 | png_bytepp outRows = (png_bytepp) malloc((int) imageInfo.height * png_sizeof(png_bytep)); | |
852 | if (outRows == (png_bytepp) 0) { | |
853 | printf("Can't allocate output buffer!\n"); | |
854 | exit(1); | |
855 | } | |
856 | for (i = 0; i < (int) imageInfo.height; i++) { | |
857 | outRows[i] = (png_bytep) malloc(2 * (int) imageInfo.width); | |
858 | if (outRows[i] == (png_bytep) 0) { | |
859 | printf("Can't allocate output buffer!\n"); | |
860 | exit(1); | |
861 | } | |
862 | } | |
863 | ||
864 | png_set_compression_level(write_ptr, Z_BEST_COMPRESSION); | |
865 | ||
866 | NOISY(printf("Writing image %s: w = %d, h = %d\n", imageName, | |
867 | (int) imageInfo.width, (int) imageInfo.height)); | |
868 | ||
869 | png_color rgbPalette[256]; | |
870 | png_byte alphaPalette[256]; | |
871 | bool hasTransparency; | |
872 | int paletteEntries; | |
873 | ||
874 | analyze_image(imageName, imageInfo, grayscaleTolerance, rgbPalette, alphaPalette, | |
875 | &paletteEntries, &hasTransparency, &color_type, outRows); | |
876 | ||
877 | // If the image is a 9-patch, we need to preserve it as a ARGB file to make | |
878 | // sure the pixels will not be pre-dithered/clamped until we decide they are | |
879 | if (imageInfo.is9Patch && (color_type == PNG_COLOR_TYPE_RGB || | |
880 | color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_PALETTE)) { | |
881 | color_type = PNG_COLOR_TYPE_RGB_ALPHA; | |
882 | } | |
883 | ||
884 | switch (color_type) { | |
885 | case PNG_COLOR_TYPE_PALETTE: | |
886 | NOISY(printf("Image %s has %d colors%s, using PNG_COLOR_TYPE_PALETTE\n", | |
887 | imageName, paletteEntries, | |
888 | hasTransparency ? " (with alpha)" : "")); | |
889 | break; | |
890 | case PNG_COLOR_TYPE_GRAY: | |
891 | NOISY(printf("Image %s is opaque gray, using PNG_COLOR_TYPE_GRAY\n", imageName)); | |
892 | break; | |
893 | case PNG_COLOR_TYPE_GRAY_ALPHA: | |
894 | NOISY(printf("Image %s is gray + alpha, using PNG_COLOR_TYPE_GRAY_ALPHA\n", imageName)); | |
895 | break; | |
896 | case PNG_COLOR_TYPE_RGB: | |
897 | NOISY(printf("Image %s is opaque RGB, using PNG_COLOR_TYPE_RGB\n", imageName)); | |
898 | break; | |
899 | case PNG_COLOR_TYPE_RGB_ALPHA: | |
900 | NOISY(printf("Image %s is RGB + alpha, using PNG_COLOR_TYPE_RGB_ALPHA\n", imageName)); | |
901 | break; | |
902 | } | |
903 | ||
904 | png_set_IHDR(write_ptr, write_info, imageInfo.width, imageInfo.height, | |
905 | 8, color_type, PNG_INTERLACE_NONE, | |
906 | PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); | |
907 | ||
908 | if (color_type == PNG_COLOR_TYPE_PALETTE) { | |
909 | png_set_PLTE(write_ptr, write_info, rgbPalette, paletteEntries); | |
910 | if (hasTransparency) { | |
911 | png_set_tRNS(write_ptr, write_info, alphaPalette, paletteEntries, (png_color_16p) 0); | |
912 | } | |
913 | png_set_filter(write_ptr, 0, PNG_NO_FILTERS); | |
914 | } else { | |
915 | png_set_filter(write_ptr, 0, PNG_ALL_FILTERS); | |
916 | } | |
917 | ||
918 | if (imageInfo.is9Patch) { | |
919 | NOISY(printf("Adding 9-patch info...\n")); | |
920 | strcpy((char*)unknowns[0].name, "npTc"); | |
921 | unknowns[0].data = (png_byte*)imageInfo.info9Patch.serialize(); | |
922 | unknowns[0].size = imageInfo.info9Patch.serializedSize(); | |
923 | // TODO: remove the check below when everything works | |
924 | checkNinePatchSerialization(&imageInfo.info9Patch, unknowns[0].data); | |
925 | png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, | |
926 | (png_byte*)"npTc", 1); | |
927 | png_set_unknown_chunks(write_ptr, write_info, unknowns, 1); | |
928 | // XXX I can't get this to work without forcibly changing | |
929 | // the location to what I want... which apparently is supposed | |
930 | // to be a private API, but everything else I have tried results | |
931 | // in the location being set to what I -last- wrote so I never | |
932 | // get written. :p | |
933 | png_set_unknown_chunk_location(write_ptr, write_info, 0, PNG_HAVE_PLTE); | |
934 | } | |
935 | ||
936 | png_write_info(write_ptr, write_info); | |
937 | ||
938 | png_bytepp rows; | |
939 | if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { | |
940 | png_set_filler(write_ptr, 0, PNG_FILLER_AFTER); | |
941 | rows = imageInfo.rows; | |
942 | } else { | |
943 | rows = outRows; | |
944 | } | |
945 | png_write_image(write_ptr, rows); | |
946 | ||
947 | // NOISY(printf("Final image data:\n")); | |
948 | // dump_image(imageInfo.width, imageInfo.height, rows, color_type); | |
949 | ||
950 | png_write_end(write_ptr, write_info); | |
951 | ||
952 | for (i = 0; i < (int) imageInfo.height; i++) { | |
953 | free(outRows[i]); | |
954 | } | |
955 | free(outRows); | |
981d1579 | 956 | free(unknowns[0].data); |
a534180c TAOSP |
957 | |
958 | png_get_IHDR(write_ptr, write_info, &width, &height, | |
959 | &bit_depth, &color_type, &interlace_type, | |
960 | &compression_type, NULL); | |
961 | ||
962 | NOISY(printf("Image written: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", | |
963 | (int)width, (int)height, bit_depth, color_type, interlace_type, | |
964 | compression_type)); | |
965 | } | |
966 | ||
967 | status_t preProcessImage(Bundle* bundle, const sp<AaptAssets>& assets, | |
968 | const sp<AaptFile>& file, String8* outNewLeafName) | |
969 | { | |
970 | String8 ext(file->getPath().getPathExtension()); | |
971 | ||
972 | // We currently only process PNG images. | |
973 | if (strcmp(ext.string(), ".png") != 0) { | |
974 | return NO_ERROR; | |
975 | } | |
976 | ||
977 | // Example of renaming a file: | |
978 | //*outNewLeafName = file->getPath().getBasePath().getFileName(); | |
979 | //outNewLeafName->append(".nupng"); | |
980 | ||
981 | String8 printableName(file->getPrintableSource()); | |
982 | ||
983 | png_structp read_ptr = NULL; | |
984 | png_infop read_info = NULL; | |
985 | FILE* fp; | |
986 | ||
987 | image_info imageInfo; | |
988 | ||
989 | png_structp write_ptr = NULL; | |
990 | png_infop write_info = NULL; | |
991 | ||
992 | status_t error = UNKNOWN_ERROR; | |
993 | ||
994 | const size_t nameLen = file->getPath().length(); | |
995 | ||
996 | fp = fopen(file->getSourceFile().string(), "rb"); | |
997 | if (fp == NULL) { | |
998 | fprintf(stderr, "%s: ERROR: Unable to open PNG file\n", printableName.string()); | |
999 | goto bail; | |
1000 | } | |
1001 | ||
1002 | read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, | |
1003 | (png_error_ptr)NULL); | |
1004 | if (!read_ptr) { | |
1005 | goto bail; | |
1006 | } | |
1007 | ||
1008 | read_info = png_create_info_struct(read_ptr); | |
1009 | if (!read_info) { | |
1010 | goto bail; | |
1011 | } | |
1012 | ||
1013 | if (setjmp(png_jmpbuf(read_ptr))) { | |
1014 | goto bail; | |
1015 | } | |
1016 | ||
1017 | png_init_io(read_ptr, fp); | |
1018 | ||
1019 | read_png(printableName.string(), read_ptr, read_info, &imageInfo); | |
1020 | ||
1021 | if (nameLen > 6) { | |
1022 | const char* name = file->getPath().string(); | |
1023 | if (name[nameLen-5] == '9' && name[nameLen-6] == '.') { | |
1024 | if (do_9patch(printableName.string(), &imageInfo) != NO_ERROR) { | |
1025 | goto bail; | |
1026 | } | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, | |
1031 | (png_error_ptr)NULL); | |
1032 | if (!write_ptr) | |
1033 | { | |
1034 | goto bail; | |
1035 | } | |
1036 | ||
1037 | write_info = png_create_info_struct(write_ptr); | |
1038 | if (!write_info) | |
1039 | { | |
1040 | goto bail; | |
1041 | } | |
1042 | ||
1043 | png_set_write_fn(write_ptr, (void*)file.get(), | |
1044 | png_write_aapt_file, png_flush_aapt_file); | |
1045 | ||
1046 | if (setjmp(png_jmpbuf(write_ptr))) | |
1047 | { | |
1048 | goto bail; | |
1049 | } | |
1050 | ||
1051 | write_png(printableName.string(), write_ptr, write_info, imageInfo, | |
1052 | bundle->getGrayscaleTolerance()); | |
1053 | ||
1054 | error = NO_ERROR; | |
1055 | ||
1056 | if (bundle->getVerbose()) { | |
1057 | fseek(fp, 0, SEEK_END); | |
1058 | size_t oldSize = (size_t)ftell(fp); | |
1059 | size_t newSize = file->getSize(); | |
1060 | float factor = ((float)newSize)/oldSize; | |
1061 | int percent = (int)(factor*100); | |
1062 | printf(" (processed image %s: %d%% size of source)\n", printableName.string(), percent); | |
1063 | } | |
1064 | ||
1065 | bail: | |
1066 | if (read_ptr) { | |
1067 | png_destroy_read_struct(&read_ptr, &read_info, (png_infopp)NULL); | |
1068 | } | |
1069 | if (fp) { | |
1070 | fclose(fp); | |
1071 | } | |
1072 | if (write_ptr) { | |
1073 | png_destroy_write_struct(&write_ptr, &write_info); | |
1074 | } | |
1075 | ||
1076 | if (error != NO_ERROR) { | |
1077 | fprintf(stderr, "ERROR: Failure processing PNG image %s\n", | |
1078 | file->getPrintableSource().string()); | |
1079 | } | |
1080 | return error; | |
1081 | } | |
1082 | ||
1083 | ||
1084 | ||
1085 | status_t postProcessImage(const sp<AaptAssets>& assets, | |
1086 | ResourceTable* table, const sp<AaptFile>& file) | |
1087 | { | |
1088 | String8 ext(file->getPath().getPathExtension()); | |
1089 | ||
1090 | // At this point, now that we have all the resource data, all we need to | |
1091 | // do is compile XML files. | |
1092 | if (strcmp(ext.string(), ".xml") == 0) { | |
1093 | return compileXmlFile(assets, file, table); | |
1094 | } | |
1095 | ||
1096 | return NO_ERROR; | |
1097 | } |