214 pRasInfo->scanStride = 0;
215 } else {
216 pRasInfo->rasBase = (void *)
217 (((uintptr_t) bipriv->base) + bisdo->offset);
218 pRasInfo->pixelStride = bisdo->pixStr;
219 pRasInfo->pixelBitOffset = bisdo->bitoffset;
220 pRasInfo->scanStride = bisdo->scanStr;
221 }
222 if (bipriv->lutbase == NULL) {
223 pRasInfo->lutBase = NULL;
224 pRasInfo->lutSize = 0;
225 } else {
226 pRasInfo->lutBase = bipriv->lutbase;
227 pRasInfo->lutSize = bisdo->lutsize;
228 }
229 if (bipriv->cData == NULL) {
230 pRasInfo->invColorTable = NULL;
231 pRasInfo->redErrTable = NULL;
232 pRasInfo->grnErrTable = NULL;
233 pRasInfo->bluErrTable = NULL;
234 } else {
235 pRasInfo->invColorTable = bipriv->cData->img_clr_tbl;
236 pRasInfo->redErrTable = bipriv->cData->img_oda_red;
237 pRasInfo->grnErrTable = bipriv->cData->img_oda_green;
238 pRasInfo->bluErrTable = bipriv->cData->img_oda_blue;
239 pRasInfo->invGrayTable = bipriv->cData->pGrayInverseLutData;
240 }
241 }
242
243 static void BufImg_Release(JNIEnv *env,
244 SurfaceDataOps *ops,
245 SurfaceDataRasInfo *pRasInfo)
246 {
247 BufImgSDOps *bisdo = (BufImgSDOps *)ops;
248 BufImgRIPrivate *bipriv = (BufImgRIPrivate *) &(pRasInfo->priv);
249
250 if (bipriv->base != NULL) {
251 jint mode = (((bipriv->lockFlags & (SD_LOCK_WRITE)) != 0)
252 ? 0 : JNI_ABORT);
253 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->array,
254 bipriv->base, mode);
255 }
256 if (bipriv->lutbase != NULL) {
257 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->lutarray,
258 bipriv->lutbase, JNI_ABORT);
259 }
260 }
261
262 static ColorData *BufImg_SetupICM(JNIEnv *env,
263 BufImgSDOps *bisdo)
264 {
265 ColorData *cData = NULL;
266 jobject colorData;
267
268 if (JNU_IsNull(env, bisdo->icm)) {
269 return (ColorData *) NULL;
270 }
271
272 colorData = (*env)->GetObjectField(env, bisdo->icm, colorDataID);
273
274 if (JNU_IsNull(env, colorData)) {
275 if (JNU_IsNull(env, clsICMCD)) {
276 // we are unable to create a wrapper object
277 return (ColorData*)NULL;
278 }
279 } else {
280 cData = (ColorData*)JNU_GetLongFieldAsPtr(env, colorData, pDataID);
281 }
282
283 if (cData != NULL) {
284 return cData;
285 }
286
287 cData = (ColorData*)calloc(1, sizeof(ColorData));
288
289 if (cData != NULL) {
290 jboolean allGray
291 = (*env)->GetBooleanField(env, bisdo->icm, allGrayID);
292 int *pRgb = (int *)
293 ((*env)->GetPrimitiveArrayCritical(env, bisdo->lutarray, NULL));
294
295 if (pRgb == NULL) {
296 free(cData);
297 return (ColorData*)NULL;
298 }
299
300 cData->img_clr_tbl = initCubemap(pRgb, bisdo->lutsize, 32);
301 if (allGray == JNI_TRUE) {
302 initInverseGrayLut(pRgb, bisdo->lutsize, cData);
303 }
304 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->lutarray, pRgb,
305 JNI_ABORT);
306
307 initDitherTables(cData);
308
309 if (JNU_IsNull(env, colorData)) {
310 jlong pData = ptr_to_jlong(cData);
311 colorData = (*env)->NewObjectA(env, clsICMCD, initICMCDmID, (jvalue *)&pData);
312
313 if ((*env)->ExceptionCheck(env))
314 {
315 free(cData);
316 return (ColorData*)NULL;
317 }
318
319 (*env)->SetObjectField(env, bisdo->icm, colorDataID, colorData);
320 }
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214 pRasInfo->scanStride = 0;
215 } else {
216 pRasInfo->rasBase = (void *)
217 (((uintptr_t) bipriv->base) + bisdo->offset);
218 pRasInfo->pixelStride = bisdo->pixStr;
219 pRasInfo->pixelBitOffset = bisdo->bitoffset;
220 pRasInfo->scanStride = bisdo->scanStr;
221 }
222 if (bipriv->lutbase == NULL) {
223 pRasInfo->lutBase = NULL;
224 pRasInfo->lutSize = 0;
225 } else {
226 pRasInfo->lutBase = bipriv->lutbase;
227 pRasInfo->lutSize = bisdo->lutsize;
228 }
229 if (bipriv->cData == NULL) {
230 pRasInfo->invColorTable = NULL;
231 pRasInfo->redErrTable = NULL;
232 pRasInfo->grnErrTable = NULL;
233 pRasInfo->bluErrTable = NULL;
234 pRasInfo->representsPrimary = 0;
235 } else {
236 pRasInfo->invColorTable = bipriv->cData->img_clr_tbl;
237 pRasInfo->redErrTable = bipriv->cData->img_oda_red;
238 pRasInfo->grnErrTable = bipriv->cData->img_oda_green;
239 pRasInfo->bluErrTable = bipriv->cData->img_oda_blue;
240 pRasInfo->invGrayTable = bipriv->cData->pGrayInverseLutData;
241 pRasInfo->representsPrimary = bipriv->cData->representsPrimary;
242 }
243 }
244
245 static void BufImg_Release(JNIEnv *env,
246 SurfaceDataOps *ops,
247 SurfaceDataRasInfo *pRasInfo)
248 {
249 BufImgSDOps *bisdo = (BufImgSDOps *)ops;
250 BufImgRIPrivate *bipriv = (BufImgRIPrivate *) &(pRasInfo->priv);
251
252 if (bipriv->base != NULL) {
253 jint mode = (((bipriv->lockFlags & (SD_LOCK_WRITE)) != 0)
254 ? 0 : JNI_ABORT);
255 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->array,
256 bipriv->base, mode);
257 }
258 if (bipriv->lutbase != NULL) {
259 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->lutarray,
260 bipriv->lutbase, JNI_ABORT);
261 }
262 }
263
264 static jboolean calculatePrimaryColorsAprroximation(int* cmap, unsigned char* cube, int cube_size) {
265 int i, j, k;
266 jboolean represents_primary = JNI_TRUE;
267 int index, value, color;
268 // maximum variaton allowed for r,g,b values
269 int dr, dg, db;
270 // values calculated from cmap
271 int r, g, b;
272 // maximum variation allowed for r, g, b values for primary colors
273 int delta = 5;
274 // get the primary color cmap indices from corner of inverse color table
275 for (i = 0; i < cube_size; i += (cube_size - 1)) {
276 for (j = 0; j < cube_size; j += (cube_size - 1)) {
277 for (k = 0; k < cube_size; k += (cube_size - 1)) {
278 // calculate inverse color table index
279 index = i + cube_size * (j + cube_size * k);
280 // get value present in corners of inverse color table
281 value = cube[index];
282 // use the corner values as index for cmap
283 color = cmap[value];
284 // extract r,g,b values from cmap value
285 (r) = (color)& 0xff;
286 (g) = ((color) >> 8) & 0xff;
287 (b) = ((color) >> 16) & 0xff;
288 /* based on value of i, j, k we can set expected values for r, g, b
289 * if i,j,k is 0 then r,g,b is 0, if i,j,k is 31 then r,g,b is 255
290 */
291 dr = (i % (cube_size - 2)) * 255;
292 dg = (j % (cube_size - 2)) * 255;
293 db = (k % (cube_size - 2)) * 255;
294
295 // if i,j,k values are 31 delta will be -5 and if i,j,k values are 0
296 // delta will be +5. if r,g,b values from cmap vary more than dr,dg,db
297 // then they dont represent primary colors properly.
298 if (i % (cube_size - 2)) {
299 dr -= delta;
300 if (r < dr) {
301 represents_primary = JNI_FALSE;
302 break;
303 }
304 }
305 else {
306 dr += delta;
307 if (r > dr) {
308 represents_primary = JNI_FALSE;
309 break;
310 }
311 }
312 if (j % (cube_size - 2)) {
313 dg -= delta;
314 if (g < dg) {
315 represents_primary = JNI_FALSE;
316 break;
317 }
318 }
319 else {
320 dg += delta;
321 if (g > dg) {
322 represents_primary = JNI_FALSE;
323 break;
324 }
325 }
326 if (k % (cube_size - 2)) {
327 db -= delta;
328 if (b < db) {
329 represents_primary = JNI_FALSE;
330 break;
331 }
332 }
333 else {
334 db += delta;
335 if (b > db) {
336 represents_primary = JNI_FALSE;
337 break;
338 }
339 }
340 }
341 }
342 }
343 return represents_primary;
344 }
345
346 static ColorData *BufImg_SetupICM(JNIEnv *env,
347 BufImgSDOps *bisdo)
348 {
349 ColorData *cData = NULL;
350 jobject colorData;
351
352 if (JNU_IsNull(env, bisdo->icm)) {
353 return (ColorData *) NULL;
354 }
355
356 colorData = (*env)->GetObjectField(env, bisdo->icm, colorDataID);
357
358 if (JNU_IsNull(env, colorData)) {
359 if (JNU_IsNull(env, clsICMCD)) {
360 // we are unable to create a wrapper object
361 return (ColorData*)NULL;
362 }
363 } else {
364 cData = (ColorData*)JNU_GetLongFieldAsPtr(env, colorData, pDataID);
365 }
366
367 if (cData != NULL) {
368 return cData;
369 }
370
371 cData = (ColorData*)calloc(1, sizeof(ColorData));
372
373 if (cData != NULL) {
374 jboolean allGray
375 = (*env)->GetBooleanField(env, bisdo->icm, allGrayID);
376 int *pRgb = (int *)
377 ((*env)->GetPrimitiveArrayCritical(env, bisdo->lutarray, NULL));
378
379 if (pRgb == NULL) {
380 free(cData);
381 return (ColorData*)NULL;
382 }
383
384 cData->img_clr_tbl = initCubemap(pRgb, bisdo->lutsize, 32);
385 cData->representsPrimary = calculatePrimaryColorsAprroximation(pRgb, cData->img_clr_tbl, 32);
386 if (allGray == JNI_TRUE) {
387 initInverseGrayLut(pRgb, bisdo->lutsize, cData);
388 }
389 (*env)->ReleasePrimitiveArrayCritical(env, bisdo->lutarray, pRgb,
390 JNI_ABORT);
391
392 initDitherTables(cData);
393
394 if (JNU_IsNull(env, colorData)) {
395 jlong pData = ptr_to_jlong(cData);
396 colorData = (*env)->NewObjectA(env, clsICMCD, initICMCDmID, (jvalue *)&pData);
397
398 if ((*env)->ExceptionCheck(env))
399 {
400 free(cData);
401 return (ColorData*)NULL;
402 }
403
404 (*env)->SetObjectField(env, bisdo->icm, colorDataID, colorData);
405 }
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