static int
bitmap_decode(struct jpeg_decompress_struct *cinfo, Vbitmap *vbitmap,
YmagineFormatOptions *options)
{
int nlines = -1;
cinfo->client_data = (void*) vbitmap;
if (prepareDecompressor(cinfo, options) != YMAGINE_OK) {
return nlines;
}
/* Intercept APP1 markers for PhotoSphere parsing */
jpeg_set_marker_processor(cinfo, JPEG_APP0 + 1, APP1_handler);
if (startDecompressor(cinfo, VbitmapColormode(vbitmap)) != YMAGINE_OK) {
return nlines;
}
YmagineFormatOptions_invokeCallback(options, YMAGINE_IMAGEFORMAT_JPEG,
cinfo->image_width, cinfo->image_height);
#if YMAGINE_DEBUG_JPEG
ALOGD("bitmap_decode: in=%dx%d bm=%dx%d max=%dx%d",
cinfo->image_width, cinfo->image_height,
VbitmapWidth(vbitmap), VbitmapHeight(vbitmap),
options->maxwidth, options->maxheight);
#endif
nlines = decompress_jpeg(cinfo, NULL, JCOPYOPT_NONE,
vbitmap, options);
return nlines;
}
static int
VbitmapComputeIntersection(Vbitmap *vbitmap, const Vrect *region, Vrect *output)
{
Vrect vrect;
if (output == NULL) return YMAGINE_OK;
if (vbitmap == NULL) return YMAGINE_ERROR;
if (region == NULL) {
output->x = 0;
output->y = 0;
output->width = VbitmapWidth(vbitmap);
output->height = VbitmapHeight(vbitmap);
}
// Nothing is NULL
vrect.x = 0;
vrect.y = 0;
vrect.width = VbitmapWidth(vbitmap);
vrect.height = VbitmapHeight(vbitmap);
VrectComputeIntersection(&vrect, region, output);
return YMAGINE_OK;
}
int
TransformerSetBitmap(Transformer *transformer, Vbitmap *vbitmap,
int offsetx, int offsety)
{
int rc = YMAGINE_OK;
if (transformer == NULL) {
return YMAGINE_ERROR;
}
if (transformer->obitmap != NULL) {
VbitmapUnlock(transformer->obitmap);
}
if (vbitmap != NULL) {
rc = VbitmapLock(vbitmap);
if (rc != YMAGINE_OK) {
vbitmap = NULL;
}
}
transformer->obitmap = vbitmap;
if (vbitmap == NULL) {
transformer->obitmap = NULL;
transformer->obuffer = NULL;
transformer->owidth = 0;
transformer->oheight = 0;
transformer->opitch = 0;
transformer->omode = VBITMAP_COLOR_RGBA;
transformer->obpp = 0;
transformer->offsetx = 0;
transformer->offsety = 0;
} else {
transformer->obitmap = vbitmap;
transformer->obuffer = VbitmapBuffer(vbitmap);
transformer->owidth = VbitmapWidth(vbitmap);
transformer->oheight = VbitmapHeight(vbitmap);
transformer->opitch = VbitmapPitch(vbitmap);
transformer->omode = VbitmapColormode(vbitmap);
transformer->obpp = colorBpp(transformer->omode);
transformer->offsetx = offsetx;
transformer->offsety = offsety;
}
return rc;
}
static int
quantizeWithOptions(Vbitmap *vbitmap, int maxcolors,
Vcolor *colors, int *scores, int processing)
{
int i;
int x, y, c;
unsigned char *pixels;
unsigned char *line;
ColorArea centroid[PALETTESIZE];
Vcolor current;
int width, height, pitch;
uint64_t dist;
uint64_t refdist;
int refid;
int ncolors;
int maxiters = 100;
if (maxcolors <= 0 || colors == NULL) {
return 0;
}
if (vbitmap == NULL) {
return 0;
}
if (processing == YMAGINE_THEME_DEFAULT) {
processing = YMAGINE_THEME_SATURATION;
}
if (processing != YMAGINE_THEME_NONE && processing != YMAGINE_THEME_SATURATION) {
return 0;
}
if (VbitmapLock(vbitmap) < 0) {
return 0;
}
pixels = VbitmapBuffer(vbitmap);
if (pixels == NULL) {
VbitmapUnlock(vbitmap);
return 0;
}
width = VbitmapWidth(vbitmap);
height = VbitmapHeight(vbitmap);
pitch = VbitmapPitch(vbitmap);
if (width <= 0 || height <= 0 || pitch <= 0) {
VbitmapUnlock(vbitmap);
return 0;
}
/* Verify that width*height < 1<<24. This quarantee that will be
no overflow in accumulators */
if (hasMultiplyOverflow((((uint32_t) 1)<<24), width, height)) {
VbitmapUnlock(vbitmap);
return 0;
}
/* Initial result, using default palette */
if (maxcolors > PALETTESIZE) {
maxcolors = PALETTESIZE;
}
for (c = 0; c < maxcolors; c++) {
centroid[c].color = palette[c];
centroid[c].count = 0;
}
#if 0
for (c = 0; c < maxcolors; c++) {
fprintf(stderr,
"Init[%d] = #%02x%02x%02x%02x (%d)\n",
c,
centroid[c].color.red,
centroid[c].color.green,
centroid[c].color.blue,
centroid[c].color.alpha,
centroid[c].count);
}
#endif
for (i = 0; i < maxiters; i++) {
/* Reset accumulators */
for (c = 0; c < maxcolors; c++) {
centroid[c].accum_red = 0;
centroid[c].accum_green = 0;
centroid[c].accum_blue = 0;
centroid[c].accum_alpha = 0;
centroid[c].count = 0;
}
/* Assign each pixel to its nearest centroid */
current.alpha = 0xff;
for (y = 0; y < height; y++){
line = pixels + y * pitch;
for (x = 0; x < width; x++) {
/* Current pixel as a Color record */
current.red=line[RED_OFFSET];
current.green=line[GREEN_OFFSET];
current.blue=line[BLUE_OFFSET];
current.alpha=line[ALPHA_OFFSET];
line+=4;
/* Assign to first centroid by default */
refdist = norm2(¤t, &(centroid[0].color));
refid = 0;
/* Then try to find a closer one */
for (c = 1; c < maxcolors; c++) {
dist = norm2(¤t, &(centroid[c].color));
if (dist < refdist) {
refdist = dist;
refid = c;
}
}
/* Assign this pixel to closest centroid */
centroid[refid].accum_red += current.red;
centroid[refid].accum_green += current.green;
centroid[refid].accum_blue += current.blue;
centroid[refid].accum_alpha += current.alpha;
centroid[refid].count++;
}
}
refdist = 0;
for (c = 0; c < maxcolors; c++) {
if (centroid[c].count == 0) {
current.red = 0xff;
current.green = 0xff;
current.blue = 0xff;
current.alpha = 0xff;
} else {
current.red = centroid[c].accum_red/centroid[c].count;
current.green = centroid[c].accum_green/centroid[c].count;
current.blue = centroid[c].accum_blue/centroid[c].count;
current.alpha = 0xff;
}
dist = norm2(¤t, &(centroid[c].color));
if (dist > refdist) {
refdist = dist;
}
centroid[c].color = current;
}
if (refdist < 1) {
break;
}
}
VbitmapUnlock(vbitmap);
/* Saturation */
if (processing == YMAGINE_THEME_SATURATION) {
int i;
uint32_t dwhite;
uint32_t dblack;
uint32_t dcrit, dmin;
Vcolor col;
col.red = 0x20;
col.green = 0x20;
col.blue = 0x20;
col.alpha = 0xff;
dcrit = norm2(&col, &black);
/* Update scores to prefer saturated colors */
for (i = 0; i < maxcolors; i++) {
uint32_t coeff;
col.red = centroid[i].color.red;
col.green = centroid[i].color.green;
col.blue = centroid[i].color.blue;
col.alpha = centroid[i].color.alpha;
dwhite = norm2(&white, &col);
dblack = norm2(&black, &col);
dmin = (dwhite < dblack) ? dwhite : dblack;
coeff = 256;
if (dmin < dcrit) {
coeff = (256 * (dcrit + (dcrit - dmin))) / dcrit;
}
centroid[i].count = (centroid[i].count * 256) / coeff;
}
}
/* Sort colors, most dominant one first */
qsort(centroid, maxcolors, sizeof(centroid[0]), ColorAreaCompare);
/* Put colors into ARGB format */
ncolors = 0;
for (c = 0; c < maxcolors; c++) {
if (centroid[c].count <= 0) {
continue;
}
colors[c] = centroid[c].color;
if (scores != NULL) {
scores[c] = (int) centroid[c].count;
}
#if 0
ALOGD("color[%d] = #%02x%02x%02x%02x (%d)",
c,
centroid[c].color.red,
centroid[c].color.green,
centroid[c].color.blue,
centroid[c].color.alpha,
centroid[c].count);
#endif
ncolors++;
}
return ncolors;
}
int
encodeWEBP(Vbitmap *vbitmap, Ychannel *channelout, YmagineFormatOptions *options)
{
int rc = YMAGINE_ERROR;
#if HAVE_WEBP
WebPConfig config;
WebPPicture picture;
WebPPreset preset = WEBP_PRESET_PHOTO; // One of DEFAULT, PICTURE, PHOTO, DRAWING, ICON or TEXT
int width;
int height;
int pitch;
int quality;
const unsigned char *pixels;
int colormode;
/*
* List of encoding options for WebP config
* int lossless; // Lossless encoding (0=lossy(default), 1=lossless).
* float quality; // between 0 (smallest file) and 100 (biggest)
* int method; // quality/speed trade-off (0=fast, 6=slower-better)
*
* WebPImageHint image_hint; // Hint for image type (lossless only for now).
*
* // Parameters related to lossy compression only:
* int target_size; // if non-zero, set the desired target size in bytes.
* // Takes precedence over the 'compression' parameter.
* float target_PSNR; // if non-zero, specifies the minimal distortion to
* // try to achieve. Takes precedence over target_size.
* int segments; // maximum number of segments to use, in [1..4]
* int sns_strength; // Spatial Noise Shaping. 0=off, 100=maximum.
* int filter_strength; // range: [0 = off .. 100 = strongest]
* int filter_sharpness; // range: [0 = off .. 7 = least sharp]
* int filter_type; // filtering type: 0 = simple, 1 = strong (only used
* // if filter_strength > 0 or autofilter > 0)
* int autofilter; // Auto adjust filter's strength [0 = off, 1 = on]
* int alpha_compression; // Algorithm for encoding the alpha plane (0 = none,
* // 1 = compressed with WebP lossless). Default is 1.
* int alpha_filtering; // Predictive filtering method for alpha plane.
* // 0: none, 1: fast, 2: best. Default if 1.
* int alpha_quality; // Between 0 (smallest size) and 100 (lossless).
* // Default is 100.
* int pass; // number of entropy-analysis passes (in [1..10]).
*
* int show_compressed; // if true, export the compressed picture back.
* // In-loop filtering is not applied.
* int preprocessing; // preprocessing filter (0=none, 1=segment-smooth)
* int partitions; // log2(number of token partitions) in [0..3]
* // Default is set to 0 for easier progressive decoding.
* int partition_limit; // quality degradation allowed to fit the 512k limit on
* // prediction modes coding (0: no degradation,
* // 100: maximum possible degradation).
*/
colormode = VbitmapColormode(vbitmap);
if (colormode != VBITMAP_COLOR_RGBA && colormode != VBITMAP_COLOR_RGB) {
ALOGD("currently only support RGB, RGBA webp encoding");
return rc;
}
quality = YmagineFormatOptions_normalizeQuality(options);
if (!WebPConfigPreset(&config, preset, (float) quality)) {
return YMAGINE_ERROR; // version error
}
if (options && options->accuracy >= 0) {
int method = options->accuracy / 15;
if (method > 6) {
method = 6;
}
config.method = method;
}
if (!WebPValidateConfig(&config)) {
// parameter ranges verification failed
return YMAGINE_ERROR;
}
rc = VbitmapLock(vbitmap);
if (rc < 0) {
ALOGE("AndroidBitmap_lockPixels() failed");
return YMAGINE_ERROR;
}
width = VbitmapWidth(vbitmap);
height = VbitmapHeight(vbitmap);
pitch = VbitmapPitch(vbitmap);
pixels = VbitmapBuffer(vbitmap);
if (WebPPictureInit(&picture)) {
picture.use_argb = 1;
picture.width = width;
picture.height = height;
picture.writer = WebPYchannelWrite;
picture.custom_ptr = channelout;
if (colormode == VBITMAP_COLOR_RGBA) {
WebPPictureImportRGBA(&picture, pixels, pitch);
} else {
WebPPictureImportRGB(&picture, pixels, pitch);
}
WebPEncode(&config, &picture);
WebPPictureFree(&picture);
}
VbitmapUnlock(vbitmap);
rc = YMAGINE_OK;
#endif
return rc;
}
double
VbitmapComputePSNR(Vbitmap *vbitmap, Vbitmap *reference)
{
int width;
int height;
unsigned char* v1buffer;
unsigned char* v2buffer;
int bpp1;
int bpp2;
int v1pitch;
int v2pitch;
double error = 0.0;
double psnr = -1.0;
if (vbitmap == NULL || reference == NULL ||
VbitmapWidth(vbitmap) != VbitmapWidth(reference) ||
VbitmapHeight(vbitmap) != VbitmapHeight(reference)) {
return psnr;
}
if (vbitmap == reference) {
return VBITMAP_MAX_PSNR;
}
bpp1 = VbitmapBpp(vbitmap);
bpp2 = VbitmapBpp(reference);
if (VbitmapLock(vbitmap) == YMAGINE_OK) {
if (VbitmapLock(reference) == YMAGINE_OK) {
v1buffer = VbitmapBuffer(vbitmap);
v2buffer = VbitmapBuffer(reference);
if (v1buffer != NULL && v2buffer != NULL) {
width = VbitmapWidth(vbitmap);
height = VbitmapHeight(vbitmap);
v1pitch = VbitmapPitch(vbitmap);
v2pitch = VbitmapPitch(reference);
if (bpp1 == 1 && bpp2 == 1) {
error = calculateError(width, height, v1buffer, v2buffer, 1, 1, v1pitch, v2pitch, 1);
} else if (bpp1 == 3 && bpp2 == 3) {
error = calculateError(width, height, v1buffer, v2buffer, 3, 3, v1pitch, v2pitch, 3);
} else if (bpp1 == 4 && bpp2 == 4) {
error = calculateError(width, height, v1buffer, v2buffer, 4, 4, v1pitch, v2pitch, 4);
} else {
int bpp = MIN(bpp1, bpp2);
error = calculateError(width, height, v1buffer, v2buffer, bpp1, bpp2, v1pitch, v2pitch, bpp);
}
}
VbitmapUnlock(reference);
}
VbitmapUnlock(vbitmap);
}
if (error > 1.0e-10) {
psnr = (10.0 / LOG10) * log((255.0 * 255.0) / error);
if (psnr > VBITMAP_MAX_PSNR) {
psnr = VBITMAP_MAX_PSNR;
}
} else {
psnr = VBITMAP_MAX_PSNR;
}
return psnr;
}
int
Vbitmap_sobel(Vbitmap *outbitmap, Vbitmap *vbitmap)
{
int width;
int height;
int pitch;
int bpp;
unsigned char *pixels;
int owidth;
int oheight;
int opitch;
int obpp;
unsigned char *opixels;
int i, j;
unsigned char *inp;
unsigned char *outp;
if (vbitmap == NULL) {
return YMAGINE_ERROR;
}
if (VbitmapLock(vbitmap) >= 0) {
pixels = VbitmapBuffer(vbitmap);
width = VbitmapWidth(vbitmap);
height = VbitmapHeight(vbitmap);
pitch = VbitmapPitch(vbitmap);
bpp = colorBpp(VbitmapColormode(vbitmap));
if (VbitmapLock(outbitmap) >= 0) {
opixels = VbitmapBuffer(outbitmap);
owidth = VbitmapWidth(outbitmap);
oheight = VbitmapHeight(outbitmap);
opitch = VbitmapPitch(outbitmap);
obpp = colorBpp(VbitmapColormode(outbitmap));
if (width != owidth || height != oheight) {
VbitmapUnlock(outbitmap);
if (VbitmapResize(outbitmap, width, height) == YMAGINE_OK) {
if (VbitmapLock(outbitmap) < 0) {
VbitmapUnlock(vbitmap);
return YMAGINE_ERROR;
}
opixels = VbitmapBuffer(outbitmap);
owidth = VbitmapWidth(outbitmap);
oheight = VbitmapHeight(outbitmap);
opitch = VbitmapPitch(outbitmap);
obpp = colorBpp(VbitmapColormode(outbitmap));
}
}
if (width == owidth && height == oheight && bpp >= 3) {
for (j = 0; j < height; j++) {
inp = pixels + pitch * j;
outp = opixels + opitch * j;
outp[0] = EnergySobel(inp, bpp, pitch, 0, j, width, height);
outp += obpp;
inp += bpp;
if (j != 0 && j != height-1) {
for (i = 1; i < width - 1; i++) {
outp[0] = EnergySobelFast(inp, bpp, pitch);
outp += obpp;
inp += bpp;
}
} else {
for (i = 1; i < width - 1; i++) {
outp[0] = EnergySobel(inp, bpp, pitch, i, j, width, height);
outp += obpp;
inp += bpp;
}
}
outp[0] = EnergySobel(inp, bpp, pitch, width - 1, j, width, height);
}
if (obpp >= 3) {
for (j = 0; j < height; j++) {
outp = opixels + opitch * j;
for (i = 0; i < width; i++) {
outp[1] = outp[0];
outp[2] = outp[0];
if (obpp == 4) {
outp[0] = 0xff;
}
outp += obpp;
}
}
}
}
VbitmapUnlock(outbitmap);
}
VbitmapUnlock(vbitmap);
}
return YMAGINE_OK;
}
static int
tileRender(Vbitmap *canvas, int ntiles, int tileid, Ychannel* channelin, Vbitmap *srcbitmap)
{
int rc;
int maxWidth = -1;
int maxHeight = -1;
/* scaleMode can be YMAGINE_SCALE_CROP or YMAGINE_SCALE_LETTERBOX */
int scaleMode = YMAGINE_SCALE_CROP;
/* Fit mode */
int adjustMode = YMAGINE_ADJUST_NONE;
/* metaMode can be one of YMAGINE_METAMODE_ALL, YMAGINE_METAMODE_COMMENTS,
YMAGINE_METAMODE_NONE or YMAGINE_METAMODE_DEFAULT */
int metaMode = YMAGINE_METAMODE_DEFAULT;
int quality = -1;
int accuracy = -1;
int subsampling = -1;
int progressive = -1;
float sharpen = 0.0f;
float blur = 0.0f;
float rotate = 0.0f;
#if YMAGINE_PROFILE
int profile = 0;
NSTYPE start = 0;
NSTYPE end = 0;
NSTYPE start_decode = 0;
NSTYPE end_decode = 0;
#endif
YmagineFormatOptions *options = NULL;
Vbitmap *vbitmap = NULL;
int canvasw;
int canvash;
int tilex;
int tiley;
int tilew;
int tileh;
#if YMAGINE_PROFILE
if (profile) {
start = NSTIME();
}
#endif
canvasw = VbitmapWidth(canvas);
canvash = VbitmapHeight(canvas);
if (ntiles > 4) {
ntiles = 4;
}
if (tileid < 0 || tileid >= ntiles) {
return YMAGINE_OK;
}
if (ntiles == 1) {
tilex = 0;
tiley = 0;
tilew = canvasw;
tileh = canvash;
} else if (ntiles == 2) {
tilex = cell(canvasw, tileid % 2, 2);
tiley = cell(canvash, tileid / 2, 1);
tilew = cell(canvasw, (tileid % 2) + 1, 2) - tilex;
tileh = cell(canvash, (tileid / 2) + 1, 1) - tiley;
} else if (ntiles == 3) {
tilex = cell(canvasw, tileid % 2, 2);
tiley = cell(canvash, tileid / 2, 2);
tilew = cell(canvasw, (tileid % 2) + 1, 2) - tilex;
if (tileid == 0) {
tilex = 0;
tiley = 0;
tilew = cell(canvasw, 1, 2) - tilex;
tileh = canvash;
} else {
tilex = cell(canvasw, 1, 2);
tiley = cell(canvash, (tileid - 1) % 2, 2);
tilew = cell(canvasw, 2, 2) - tilex;
tileh = cell(canvash, ((tileid - 1) % 2) + 1, 2) - tiley;
}
} else {
tilex = cell(canvasw, tileid % 2, 2);
tiley = cell(canvash, tileid / 2, 2);
tilew = cell(canvasw, (tileid % 2) + 1, 2) - tilex;
tileh = cell(canvash, (tileid / 2) + 1, 2) - tiley;
}
maxWidth = tilew;
maxHeight = tileh;
rc = YMAGINE_ERROR;
options = YmagineFormatOptions_Create();
if (options != NULL) {
YmagineFormatOptions_setResize(options, maxWidth, maxHeight, scaleMode);
YmagineFormatOptions_setQuality(options, quality);
YmagineFormatOptions_setAccuracy(options, accuracy);
YmagineFormatOptions_setMetaMode(options, metaMode);
if (subsampling >= 0) {
YmagineFormatOptions_setSubsampling(options, subsampling);
}
if (progressive >= 0) {
YmagineFormatOptions_setProgressive(options, progressive);
}
if (sharpen > 0.0f) {
YmagineFormatOptions_setSharpen(options, sharpen);
}
if (blur > 0.0f) {
YmagineFormatOptions_setBlur(options, blur);
}
if (rotate != 0.0f) {
YmagineFormatOptions_setRotate(options, rotate);
}
YmagineFormatOptions_setAdjust(options, adjustMode);
vbitmap = VbitmapInitMemory(VBITMAP_COLOR_RGBA);
if (vbitmap != NULL) {
#if YMAGINE_PROFILE
start_decode = NSTIME();
#endif
if (channelin != NULL) {
rc = YmagineDecode(vbitmap, channelin, options);
} else if (srcbitmap != NULL) {
rc = YmagineDecodeCopy(vbitmap, srcbitmap, options);
} else {
rc = YMAGINE_ERROR;
}
#if YMAGINE_PROFILE
end_decode = NSTIME();
if (profile) {
ALOGI("Decoded image %dx%d in %.2f ms\n",
VbitmapWidth(vbitmap), VbitmapHeight(vbitmap),
((double) (end_decode - start_decode)) / 1000000.0);
}
#endif
if (rc == YMAGINE_OK) {
VbitmapRegionSelect(canvas, tilex, tiley, tilew, tileh);
Ymagine_composeImage(canvas, vbitmap, 0, 0, YMAGINE_COMPOSE_BUMP);
VbitmapRegionReset(canvas);
#if YMAGINE_PROFILE
if (profile) {
end = NSTIME();
ALOGI("Rendered orb tile %d/%d in %.2f ms\n",
tileid, ntiles,
((double) (end - start)) / 1000000.0);
}
#endif
}
VbitmapRelease(vbitmap);
}
YmagineFormatOptions_Release(options);
options = NULL;
}
return rc;
}
int
encodeJPEG(Vbitmap *vbitmap, Ychannel *channelout, YmagineFormatOptions *options)
{
struct jpeg_compress_struct cinfoout;
struct noop_error_mgr jerr;
int result = YMAGINE_ERROR;
int rc;
int nlines = 0;
JSAMPROW row_pointer[1];
unsigned char *pixels;
int width;
int height;
int pitch;
int colormode;
int i;
if (!YchannelWritable(channelout)) {
return result;
}
if (vbitmap == NULL) {
return result;
}
rc = VbitmapLock(vbitmap);
if (rc != YMAGINE_OK) {
ALOGE("AndroidBitmap_lockPixels() failed");
return result;
}
memset(&cinfoout, 0, sizeof(struct jpeg_compress_struct));
cinfoout.err = noop_jpeg_std_error(&jerr.pub);
if (setjmp(jerr.setjmp_buffer)) {
/* If we get here, the JPEG code has signaled an error in encoder */
noop_append_jpeg_message((j_common_ptr) &cinfoout);
} else {
/* Equivalent to:
jpeg_CreateCompress(&cinfoout, JPEG_LIB_VERSION,
(size_t) sizeof(struct jpeg_compress_struct));
*/
jpeg_create_compress(&cinfoout);
if (ymaginejpeg_output(&cinfoout, channelout) >= 0) {
/* Other compression settings */
int optimize = 0;
int progressive = 0;
int grayscale = 0;
int quality = YmagineFormatOptions_normalizeQuality(options);
if (quality >= 90) {
optimize = 1;
}
width = VbitmapWidth(vbitmap);
height = VbitmapHeight(vbitmap);
pitch = VbitmapPitch(vbitmap);
colormode = VbitmapColormode(vbitmap);
cinfoout.image_width = width;
cinfoout.image_height = height;
set_colormode(&cinfoout, colormode);
jpeg_set_defaults(&cinfoout);
jpeg_set_quality(&cinfoout, quality, FALSE);
if (grayscale) {
/* Force a monochrome JPEG file to be generated. */
jpeg_set_colorspace(&cinfoout, JCS_GRAYSCALE);
}
if (optimize) {
/* Enable entropy parm optimization. */
cinfoout.optimize_coding = TRUE;
}
if (progressive) {
/* Select simple progressive mode. */
jpeg_simple_progression(&cinfoout);
}
setCompressorOptions(&cinfoout, options);
jpeg_start_compress(&cinfoout, TRUE);
pixels = VbitmapBuffer(vbitmap);
for (i = 0; i < height; i++) {
row_pointer[0] = pixels + i * pitch;
jpeg_write_scanlines(&cinfoout, row_pointer, 1);
nlines++;
}
if (nlines > 0) {
rc = YMAGINE_OK;
}
/* Clean up compressor */
jpeg_finish_compress(&cinfoout);
}
}
jpeg_destroy_compress(&cinfoout);
VbitmapUnlock(vbitmap);
return rc;
}
int
parseopts_shader(const char* argv[], int argc, int i, PixelShader *shader, int compose)
{
/* Number of arguments processed */
int nargs = 0;
if (argv[i][1] == 's' && strcmp(argv[i], "-saturation") == 0) {
double saturation = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
saturation = atof(argv[i]);
Yshader_PixelShader_saturation(shader, saturation);
nargs += 2;
} else if (argv[i][1] == 'e' && strcmp(argv[i], "-exposure") == 0) {
double exposure = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
exposure = atof(argv[i]);
Yshader_PixelShader_exposure(shader, exposure);
nargs += 2;
} else if (argv[i][1] == 'c' && strcmp(argv[i], "-contrast") == 0) {
double contrast = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
contrast = atof(argv[i]);
Yshader_PixelShader_contrast(shader, contrast);
nargs += 2;
} else if (argv[i][1] == 'b' && strcmp(argv[i], "-brightness") == 0) {
double brightness = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
brightness = atof(argv[i]);
Yshader_PixelShader_brightness(shader, brightness);
nargs += 2;
} else if (argv[i][1] == 't' && strcmp(argv[i], "-temperature") == 0) {
double temperature = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
temperature = atof(argv[i]);
Yshader_PixelShader_temperature(shader, temperature);
nargs += 2;
} else if (argv[i][1] == 'w' && strcmp(argv[i], "-whitebalance") == 0) {
double whitebalance = 0.0f;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
whitebalance = atof(argv[i]);
Yshader_PixelShader_whitebalance(shader, whitebalance);
nargs += 2;
} else if (argv[i][1] == 'v' && strcmp(argv[i], "-vignette") == 0) {
Vbitmap *vmap;
const char* shaderfile;
int fd;
Ychannel* channel;
if (i+1 >= argc) {
fprintf(stdout, "missing value after option \"%s\"\n", argv[i]);
fflush(stdout);
return -1;
}
i++;
/* load map for vignette */
shaderfile = argv[i];
fd = open(shaderfile, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "error loading vignette map \"%s\"\n", shaderfile);
return -1;
}
vmap = VbitmapInitMemory(VBITMAP_COLOR_RGBA);
channel = YchannelInitFd(fd, 0);
YmagineDecodeResize(vmap, channel, -1, -1, YMAGINE_SCALE_LETTERBOX);
YchannelRelease(channel);
/* Either set auto-release to true, or close the file descriptor Ychannel doesn't own */
close(fd);
fprintf(stderr, "Loaded vignette map from '%s' %dx%d\n",
shaderfile, VbitmapWidth(vmap), VbitmapHeight(vmap));
/* Append vignette shader to pipeline */
VbitmapRetain(vmap);
Yshader_PixelShader_vignette(shader, vmap, compose);
VbitmapRelease(vmap);
nargs += 2;
}
return nargs;
}
