diff options
Diffstat (limited to 'xaos-3.5-libpng15.patch')
| -rw-r--r-- | xaos-3.5-libpng15.patch | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/xaos-3.5-libpng15.patch b/xaos-3.5-libpng15.patch new file mode 100644 index 000000000000..beece8339e31 --- /dev/null +++ b/xaos-3.5-libpng15.patch @@ -0,0 +1,131 @@ +http://code.google.com/p/gnuxaos/issues/detail?id=55 + +--- src/util/png.c ++++ src/util/png.c +@@ -3,6 +3,7 @@ + #include <aconfig.h> + #ifdef USE_PNG + #include <png.h> ++#include <zlib.h> + #endif + #include <stdlib.h> + #include <stdio.h> +@@ -31,6 +32,9 @@ + png_structp png_ptr; + png_infop info_ptr; + png_color palette[256]; ++ png_color_8 sig_bit; ++ int color_type; ++ int bit_depth; + volatile unsigned short a = 255; + volatile unsigned char *b = (volatile unsigned char *) &a; + #ifdef _undefined_ +@@ -59,7 +63,7 @@ + png_destroy_write_struct(&png_ptr, (png_infopp) NULL); + return "No memory to create png info structure"; + } +- if (setjmp(png_ptr->jmpbuf)) { ++ if (setjmp(png_jmpbuf(png_ptr))) { + png_destroy_write_struct(&png_ptr, &info_ptr); + fclose(file); + return strerror(errno); +@@ -78,57 +82,70 @@ + png_set_compression_window_bits(png_ptr, 15); + png_set_compression_method(png_ptr, 8); + +- info_ptr->width = image->width; +- info_ptr->height = image->height; +- /*info_ptr->gamma=1.0; */ +- info_ptr->gamma = 0.5; +- info_ptr->valid |= PNG_INFO_gAMA | PNG_INFO_pHYs; +- info_ptr->x_pixels_per_unit = (png_uint_32) (100 / image->pixelwidth); +- info_ptr->y_pixels_per_unit = (png_uint_32) (100 / image->pixelheight); ++ switch (image->palette->type) ++ { ++ case C256: ++ color_type = PNG_COLOR_TYPE_PALETTE; ++ bit_depth = image->bytesperpixel * 8; ++ break; ++ case SMALLITER: ++ case LARGEITER: ++ case GRAYSCALE: ++ color_type = PNG_COLOR_TYPE_GRAY; ++ bit_depth = image->bytesperpixel * 8; ++ break; ++ case TRUECOLOR: ++ case TRUECOLOR24: ++ case TRUECOLOR16: ++ color_type = PNG_COLOR_TYPE_RGB; ++ bit_depth = 8; ++ break; ++ } + ++ png_set_IHDR (png_ptr, info_ptr, image->width, image->height, bit_depth, ++ color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, ++ PNG_FILTER_TYPE_BASE); + + switch (image->palette->type) { + case C256: + { + int i; +- info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; +- info_ptr->bit_depth = image->bytesperpixel * 8; +- info_ptr->palette = palette; +- info_ptr->valid |= PNG_INFO_PLTE; ++ png_color png_palette[257]; ++ int png_num_palette; + for (i = 0; i < image->palette->end; i++) +- info_ptr->palette[i].red = image->palette->rgb[i][0], +- info_ptr->palette[i].green = image->palette->rgb[i][1], +- info_ptr->palette[i].blue = image->palette->rgb[i][2], +- info_ptr->num_palette = image->palette->end; ++ png_palette[i].red = image->palette->rgb[i][0], ++ png_palette[i].green = image->palette->rgb[i][1], ++ png_palette[i].blue = image->palette->rgb[i][2], ++ png_num_palette = image->palette->end; ++ png_set_PLTE(png_ptr, info_ptr, png_palette, png_num_palette); + } + break; +- case SMALLITER: +- case LARGEITER: +- case GRAYSCALE: +- info_ptr->color_type = PNG_COLOR_TYPE_GRAY; +- info_ptr->bit_depth = image->bytesperpixel * 8; +- break; + case TRUECOLOR: + case TRUECOLOR24: + case TRUECOLOR16: +- info_ptr->color_type = PNG_COLOR_TYPE_RGB; +- info_ptr->bit_depth = 8; +- info_ptr->sig_bit.red = 8 - image->palette->info.truec.rprec; +- info_ptr->sig_bit.green = 8 - image->palette->info.truec.gprec; +- info_ptr->sig_bit.blue = 8 - image->palette->info.truec.bprec; ++ sig_bit.red = 8 - image->palette->info.truec.rprec; ++ sig_bit.green = 8 - image->palette->info.truec.gprec; ++ sig_bit.blue = 8 - image->palette->info.truec.bprec; ++ png_set_sBIT(png_ptr, info_ptr, &sig_bit); + break; + } +- info_ptr->interlace_type = 0; ++ ++ png_write_info (png_ptr, info_ptr); ++ + #ifdef _undefined_ + png_set_text(png_ptr, info_ptr, comments, + sizeof(comments) / sizeof(png_text)); + #endif + +- png_write_info(png_ptr, info_ptr); ++ png_set_gAMA(png_ptr, info_ptr, 0.5 /* 1.0 */); ++ png_set_pHYs(png_ptr, info_ptr, (png_uint_32) (100 / image->pixelwidth), ++ (png_uint_32) (100 / image->pixelheight), ++ PNG_RESOLUTION_UNKNOWN); ++ + /*png_set_filler(png_ptr,0,PNG_FILLER_AFTER); */ + png_set_packing(png_ptr); + if (image->palette->type & (TRUECOLOR | TRUECOLOR24 | TRUECOLOR16)) +- png_set_shift(png_ptr, &(info_ptr->sig_bit)); ++ png_set_shift (png_ptr, &sig_bit); + if (*b == 255) + png_set_swap(png_ptr); + png_set_bgr(png_ptr); |