diff options
author | Campbell Barton <ideasman42@gmail.com> | 2012-06-12 12:50:40 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2012-06-12 12:50:40 +0400 |
commit | bc6929fcdd87a1eaa721459cd57a25ecfa8bf0d4 (patch) | |
tree | fdd81de53d40f707ee33bc451ae1c36c7ee6b6cc /source/blender/imbuf/intern | |
parent | 6c4510f681a3be71a73ffaa8da3627b284add9e4 (diff) |
optimize jpeg2000 loading.
Diffstat (limited to 'source/blender/imbuf/intern')
-rw-r--r-- | source/blender/imbuf/intern/jp2.c | 212 |
1 files changed, 125 insertions, 87 deletions
diff --git a/source/blender/imbuf/intern/jp2.c b/source/blender/imbuf/intern/jp2.c index 1a807530281..a5826634724 100644 --- a/source/blender/imbuf/intern/jp2.c +++ b/source/blender/imbuf/intern/jp2.c @@ -93,26 +93,35 @@ static void info_callback(const char *msg, void *client_data) fprintf(stdout, "[INFO] %s", msg); } +# define PIXEL_LOOPER_BEGIN(_rect) \ + for (y = h - 1; y != (unsigned int)(-1); y--) { \ + for (i = y * w, i_next = (y + 1) * w; \ + i < i_next; \ + i++, _rect += 4) \ + { \ +# define PIXEL_LOOPER_END \ + } \ + } (void)0 \ -struct ImBuf *imb_jp2_decode(unsigned char *mem, size_t size, int flags){ +struct ImBuf *imb_jp2_decode(unsigned char *mem, size_t size, int flags) +{ struct ImBuf *ibuf = NULL; int use_float = FALSE; /* for precision higher then 8 use float */ + int use_alpha = FALSE; long signed_offsets[4] = {0, 0, 0, 0}; int float_divs[4] = {1, 1, 1, 1}; - int index; - - int w, h, planes; + unsigned int i, i_next, w, h, planes; + unsigned int y; + int *r, *g, *b, *a; /* matching 'opj_image_comp.data' type */ opj_dparameters_t parameters; /* decompression parameters */ opj_event_mgr_t event_mgr; /* event manager */ opj_image_t *image = NULL; - - int i; - + opj_dinfo_t *dinfo = NULL; /* handle to a decompressor */ opj_cio_t *cio = NULL; @@ -169,9 +178,11 @@ struct ImBuf *imb_jp2_decode(unsigned char *mem, size_t size, int flags){ case 1: /* Greyscale */ case 3: /* Color */ planes = 24; + use_alpha = FALSE; break; default: /* 2 or 4 - Greyscale or Color + alpha */ planes = 32; /* greyscale + alpha */ + use_alpha = TRUE; break; } @@ -206,64 +217,102 @@ struct ImBuf *imb_jp2_decode(unsigned char *mem, size_t size, int flags){ float *rect_float = ibuf->rect_float; if (image->numcomps < 3) { + r = image->comps[0].data; + a = (use_alpha) ? image->comps[1].data : NULL; + /* greyscale 12bits+ */ - for (i = 0; i < w * h; i++, rect_float += 4) { - index = w * h - ((i) / (w) + 1) * w + (i) % (w); - - rect_float[0] = rect_float[1] = rect_float[2] = (float)(image->comps[0].data[index] + signed_offsets[0]) / float_divs[0]; - - if (image->numcomps == 2) - rect_float[3] = (image->comps[1].data[index] + signed_offsets[1]) / float_divs[1]; - else + if (use_alpha) { + a = image->comps[1].data; + PIXEL_LOOPER_BEGIN(rect_float) { + rect_float[0] = rect_float[1] = rect_float[2] = (float)(r[i] + signed_offsets[0]) / float_divs[0]; + rect_float[3] = (a[i] + signed_offsets[1]) / float_divs[1]; + } + PIXEL_LOOPER_END; + } + else { + PIXEL_LOOPER_BEGIN(rect_float) { + rect_float[0] = rect_float[1] = rect_float[2] = (float)(r[i] + signed_offsets[0]) / float_divs[0]; rect_float[3] = 1.0f; + } + PIXEL_LOOPER_END; } } else { + r = image->comps[0].data; + g = image->comps[1].data; + b = image->comps[2].data; + /* rgb or rgba 12bits+ */ - for (i = 0; i < w * h; i++, rect_float += 4) { - index = w * h - ((i) / (w) + 1) * w + (i) % (w); - - rect_float[0] = (float)(image->comps[0].data[index] + signed_offsets[0]) / float_divs[0]; - rect_float[1] = (float)(image->comps[1].data[index] + signed_offsets[1]) / float_divs[1]; - rect_float[2] = (float)(image->comps[2].data[index] + signed_offsets[2]) / float_divs[2]; - - if (image->numcomps >= 4) - rect_float[3] = (float)(image->comps[3].data[index] + signed_offsets[3]) / float_divs[3]; - else + if (use_alpha) { + a = image->comps[3].data; + PIXEL_LOOPER_BEGIN(rect_float) { + rect_float[0] = (float)(r[i] + signed_offsets[0]) / float_divs[0]; + rect_float[1] = (float)(g[i] + signed_offsets[1]) / float_divs[1]; + rect_float[2] = (float)(b[i] + signed_offsets[2]) / float_divs[2]; + rect_float[3] = (float)(a[i] + signed_offsets[3]) / float_divs[3]; + } + PIXEL_LOOPER_END; + } + else { + PIXEL_LOOPER_BEGIN(rect_float) { + rect_float[0] = (float)(r[i] + signed_offsets[0]) / float_divs[0]; + rect_float[1] = (float)(g[i] + signed_offsets[1]) / float_divs[1]; + rect_float[2] = (float)(b[i] + signed_offsets[2]) / float_divs[2]; rect_float[3] = 1.0f; + } + PIXEL_LOOPER_END; } } } else { - unsigned char *rect = (unsigned char *)ibuf->rect; + unsigned char *rect_uchar = (unsigned char *)ibuf->rect; if (image->numcomps < 3) { + r = image->comps[0].data; + a = (use_alpha) ? image->comps[1].data : NULL; + /* greyscale */ - for (i = 0; i < w * h; i++, rect += 4) { - index = w * h - ((i) / (w) + 1) * w + (i) % (w); - - rect[0] = rect[1] = rect[2] = (image->comps[0].data[index] + signed_offsets[0]); - - if (image->numcomps == 2) - rect[3] = image->comps[1].data[index] + signed_offsets[1]; - else - rect[3] = 255; + if (use_alpha) { + a = image->comps[3].data; + PIXEL_LOOPER_BEGIN(rect_uchar) { + rect_uchar[0] = rect_uchar[1] = rect_uchar[2] = (r[i] + signed_offsets[0]); + rect_uchar[3] = a[i] + signed_offsets[1]; + } + PIXEL_LOOPER_END; + } + else { + PIXEL_LOOPER_BEGIN(rect_uchar) { + rect_uchar[0] = rect_uchar[1] = rect_uchar[2] = (r[i] + signed_offsets[0]); + rect_uchar[3] = 255; + } + PIXEL_LOOPER_END; } } else { + r = image->comps[0].data; + g = image->comps[1].data; + b = image->comps[2].data; + /* 8bit rgb or rgba */ - for (i = 0; i < w * h; i++, rect += 4) { - int index = w * h - ((i) / (w) + 1) * w + (i) % (w); - - rect[0] = image->comps[0].data[index] + signed_offsets[0]; - rect[1] = image->comps[1].data[index] + signed_offsets[1]; - rect[2] = image->comps[2].data[index] + signed_offsets[2]; - - if (image->numcomps >= 4) - rect[3] = image->comps[3].data[index] + signed_offsets[3]; - else - rect[3] = 255; + if (use_alpha) { + a = image->comps[3].data; + PIXEL_LOOPER_BEGIN(rect_uchar) { + rect_uchar[0] = r[i] + signed_offsets[0]; + rect_uchar[1] = g[i] + signed_offsets[1]; + rect_uchar[2] = b[i] + signed_offsets[2]; + rect_uchar[3] = a[i] + signed_offsets[3]; + } + PIXEL_LOOPER_END; + } + else { + PIXEL_LOOPER_BEGIN(rect_uchar) { + rect_uchar[0] = r[i] + signed_offsets[0]; + rect_uchar[1] = g[i] + signed_offsets[1]; + rect_uchar[2] = b[i] + signed_offsets[2]; + rect_uchar[3] = 255; + } + PIXEL_LOOPER_END; } } } @@ -482,7 +531,7 @@ static void cinema_setup_encoder(opj_cparameters_t *parameters, opj_image_t *ima static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) { - unsigned char *rect; + unsigned char *rect_uchar; float *rect_float; unsigned int subsampling_dx = parameters->subsampling_dx; @@ -564,7 +613,7 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) image->y1 = image->y0 + (h - 1) * subsampling_dy + 1 + image->y0; /* set image data */ - rect = (unsigned char *) ibuf->rect; + rect_uchar = (unsigned char *) ibuf->rect; rect_float = ibuf->rect_float; /* set the destination channels */ @@ -573,22 +622,11 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) b = image->comps[2].data; a = (numcomps == 4) ? image->comps[3].data : NULL; - if (rect_float && rect && prec == 8) { + if (rect_float && rect_uchar && prec == 8) { /* No need to use the floating point buffer, just write the 8 bits from the char buffer */ rect_float = NULL; } -# define PIXEL_LOOPER_BEGIN(_rect) \ - for (y = h - 1; y != (unsigned int)(-1); y--) { \ - for (i = y * w, i_next = (y + 1) * w; \ - i < i_next; \ - i++, _rect += 4) \ - { \ - -# define PIXEL_LOOPER_END \ - } \ - } (void)0 \ - if (rect_float) { switch (prec) { case 8: /* Convert blenders float color channels to 8, 12 or 16bit ints */ @@ -732,21 +770,21 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) switch (prec) { case 8: if (numcomps == 4) { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = rect[0]; - g[i] = rect[1]; - b[i] = rect[2]; - a[i] = rect[3]; + r[i] = rect_uchar[0]; + g[i] = rect_uchar[1]; + b[i] = rect_uchar[2]; + a[i] = rect_uchar[3]; } PIXEL_LOOPER_END; } else { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = rect[0]; - g[i] = rect[1]; - b[i] = rect[2]; + r[i] = rect_uchar[0]; + g[i] = rect_uchar[1]; + b[i] = rect_uchar[2]; } PIXEL_LOOPER_END; } @@ -754,21 +792,21 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) case 12: /* Up Sampling, a bit pointless but best write the bit depth requested */ if (numcomps == 4) { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = UPSAMPLE_8_TO_12(rect[0]); - g[i] = UPSAMPLE_8_TO_12(rect[1]); - b[i] = UPSAMPLE_8_TO_12(rect[2]); - a[i] = UPSAMPLE_8_TO_12(rect[3]); + r[i] = UPSAMPLE_8_TO_12(rect_uchar[0]); + g[i] = UPSAMPLE_8_TO_12(rect_uchar[1]); + b[i] = UPSAMPLE_8_TO_12(rect_uchar[2]); + a[i] = UPSAMPLE_8_TO_12(rect_uchar[3]); } PIXEL_LOOPER_END; } else { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = UPSAMPLE_8_TO_12(rect[0]); - g[i] = UPSAMPLE_8_TO_12(rect[1]); - b[i] = UPSAMPLE_8_TO_12(rect[2]); + r[i] = UPSAMPLE_8_TO_12(rect_uchar[0]); + g[i] = UPSAMPLE_8_TO_12(rect_uchar[1]); + b[i] = UPSAMPLE_8_TO_12(rect_uchar[2]); } PIXEL_LOOPER_END; } @@ -776,21 +814,21 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) case 16: if (numcomps == 4) { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = UPSAMPLE_8_TO_16(rect[0]); - g[i] = UPSAMPLE_8_TO_16(rect[1]); - b[i] = UPSAMPLE_8_TO_16(rect[2]); - a[i] = UPSAMPLE_8_TO_16(rect[3]); + r[i] = UPSAMPLE_8_TO_16(rect_uchar[0]); + g[i] = UPSAMPLE_8_TO_16(rect_uchar[1]); + b[i] = UPSAMPLE_8_TO_16(rect_uchar[2]); + a[i] = UPSAMPLE_8_TO_16(rect_uchar[3]); } PIXEL_LOOPER_END; } else { - PIXEL_LOOPER_BEGIN(rect) + PIXEL_LOOPER_BEGIN(rect_uchar) { - r[i] = UPSAMPLE_8_TO_16(rect[0]); - g[i] = UPSAMPLE_8_TO_16(rect[1]); - b[i] = UPSAMPLE_8_TO_16(rect[2]); + r[i] = UPSAMPLE_8_TO_16(rect_uchar[0]); + g[i] = UPSAMPLE_8_TO_16(rect_uchar[1]); + b[i] = UPSAMPLE_8_TO_16(rect_uchar[2]); } PIXEL_LOOPER_END; } |