Removing tabs and using 3-spaces indents to match local coding style
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09a1ab87a0
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50d9752612
88
stb_image.h
88
stb_image.h
@ -2508,55 +2508,55 @@ static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 r
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}
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if (depth != 8) {
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line8 = (stbi_uc *) stbi__malloc((x+7) * out_n); // allocate buffer for one scanline
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if (!line8) return stbi__err("outofmem", "Out of memory");
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line8 = (stbi_uc *) stbi__malloc((x+7) * out_n); // allocate buffer for one scanline
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if (!line8) return stbi__err("outofmem", "Out of memory");
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}
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for (j=0; j < y; ++j) {
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stbi_uc *in;
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stbi_uc *in;
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stbi_uc *cur = a->out + stride*j;
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stbi_uc *prior = cur - stride;
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int filter = *raw++;
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if (filter > 4) {
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if (depth != 8) free(line8);
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return stbi__err("invalid filter","Corrupt PNG");
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}
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if (depth != 8) free(line8);
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return stbi__err("invalid filter","Corrupt PNG");
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}
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if (depth == 8) {
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in = raw;
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raw += x*img_n;
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}
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else {
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// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit
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// png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop
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in = line8;
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stbi_uc* decode_out = line8;
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stbi_uc scale = (color == 0) ? 0xFF/((1<<depth)-1) : 1; // scale grayscale values to 0..255 range
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if (depth == 4) {
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for (k=x*img_n; k >= 1; k-=2, raw++) {
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*decode_out++ = scale * ((*raw >> 4) );
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*decode_out++ = scale * ((*raw ) & 0x0f);
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}
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} else if (depth == 2) {
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for (k=x*img_n; k >= 1; k-=4, raw++) {
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*decode_out++ = scale * ((*raw >> 6) );
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*decode_out++ = scale * ((*raw >> 4) & 0x03);
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*decode_out++ = scale * ((*raw >> 2) & 0x03);
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*decode_out++ = scale * ((*raw ) & 0x03);
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}
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} else if (depth == 1) {
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for (k=x*img_n; k >= 1; k-=8, raw++) {
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*decode_out++ = scale * ((*raw >> 7) );
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*decode_out++ = scale * ((*raw >> 6) & 0x01);
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*decode_out++ = scale * ((*raw >> 5) & 0x01);
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*decode_out++ = scale * ((*raw >> 4) & 0x01);
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*decode_out++ = scale * ((*raw >> 3) & 0x01);
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*decode_out++ = scale * ((*raw >> 2) & 0x01);
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*decode_out++ = scale * ((*raw >> 1) & 0x01);
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*decode_out++ = scale * ((*raw ) & 0x01);
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}
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}
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}
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if (depth == 8) {
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in = raw;
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raw += x*img_n;
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}
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else {
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// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit
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// png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop
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in = line8;
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stbi_uc* decode_out = line8;
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stbi_uc scale = (color == 0) ? 0xFF/((1<<depth)-1) : 1; // scale grayscale values to 0..255 range
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if (depth == 4) {
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for (k=x*img_n; k >= 1; k-=2, raw++) {
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*decode_out++ = scale * ((*raw >> 4) );
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*decode_out++ = scale * ((*raw ) & 0x0f);
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}
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} else if (depth == 2) {
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for (k=x*img_n; k >= 1; k-=4, raw++) {
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*decode_out++ = scale * ((*raw >> 6) );
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*decode_out++ = scale * ((*raw >> 4) & 0x03);
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*decode_out++ = scale * ((*raw >> 2) & 0x03);
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*decode_out++ = scale * ((*raw ) & 0x03);
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}
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} else if (depth == 1) {
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for (k=x*img_n; k >= 1; k-=8, raw++) {
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*decode_out++ = scale * ((*raw >> 7) );
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*decode_out++ = scale * ((*raw >> 6) & 0x01);
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*decode_out++ = scale * ((*raw >> 5) & 0x01);
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*decode_out++ = scale * ((*raw >> 4) & 0x01);
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*decode_out++ = scale * ((*raw >> 3) & 0x01);
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*decode_out++ = scale * ((*raw >> 2) & 0x01);
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*decode_out++ = scale * ((*raw >> 1) & 0x01);
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*decode_out++ = scale * ((*raw ) & 0x01);
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}
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}
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}
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// if first row, use special filter that doesn't sample previous row
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if (j == 0) filter = first_row_filter[filter];
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@ -2574,7 +2574,7 @@ static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 r
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}
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}
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if (img_n != out_n) cur[img_n] = 255;
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in += img_n;
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in += img_n;
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cur += out_n;
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prior += out_n;
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// this is a little gross, so that we don't switch per-pixel or per-component
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@ -2635,7 +2635,7 @@ static int stbi__create_png_image(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_l
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x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p];
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y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p];
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if (x && y) {
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stbi__uint32 img_len = ((((out_n * x * depth) + 7) >> 3) + 1) * y;
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stbi__uint32 img_len = ((((out_n * x * depth) + 7) >> 3) + 1) * y;
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if (!stbi__create_png_image_raw(a, raw, raw_len, out_n, x, y, depth, color)) {
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free(final);
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return 0;
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@ -4626,7 +4626,7 @@ STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int
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1.45 (2014-08-16)
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fix MSVC-ARM internal compiler error by wrapping malloc
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1.44 (2014-08-07)
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various warning fixes from Ronny Chevalier
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various warning fixes from Ronny Chevalier
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1.43 (2014-07-15)
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fix MSVC-only compiler problem in code changed in 1.42
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1.42 (2014-07-09)
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