mirror of
https://github.com/GoogleChromeLabs/squoosh.git
synced 2025-11-16 10:39:53 +00:00
Format C / C++ with Chromium style
This commit is contained in:
Ingvar Stepanyan
committed by
Ingvar Stepanyan
Ingvar Stepanyan
parent
de543b3206
commit
a95cb740bf
@@ -1,9 +1,9 @@
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#include <emscripten/bind.h>
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#include <emscripten/val.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <setjmp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "jpeglib.h"
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@@ -14,8 +14,9 @@ extern "C" {
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using namespace emscripten;
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// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro hackery to turn it
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// into a string. More details here: https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html
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// MozJPEG doesn’t expose a numeric version, so I have to do some fun C macro
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// hackery to turn it into a string. More details here:
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// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html
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#define xstr(s) str(s)
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#define str(s) #s
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@@ -42,8 +43,8 @@ int version() {
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char buffer[] = xstr(MOZJPEG_VERSION);
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int version = 0;
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int last_index = 0;
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for(int i = 0; i < strlen(buffer); i++) {
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if(buffer[i] == '.') {
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for (int i = 0; i < strlen(buffer); i++) {
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if (buffer[i] == '.') {
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buffer[i] = '\0';
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version = version << 8 | atoi(&buffer[last_index]);
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buffer[i] = '.';
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@@ -58,13 +59,12 @@ uint8_t* last_result;
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struct jpeg_compress_struct cinfo;
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val encode(std::string image_in, int image_width, int image_height, MozJpegOptions opts) {
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uint8_t* image_buffer = (uint8_t*) image_in.c_str();
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uint8_t* image_buffer = (uint8_t*)image_in.c_str();
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// The code below is basically the `write_JPEG_file` function from
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// https://github.com/mozilla/mozjpeg/blob/master/example.c
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// I just write to memory instead of a file.
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/* This struct contains the JPEG compression parameters and pointers to
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* working space (which is allocated as needed by the JPEG library).
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* It is possible to have several such structures, representing multiple
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@@ -81,8 +81,8 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
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*/
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struct jpeg_error_mgr jerr;
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/* More stuff */
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JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */
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int row_stride; /* physical row width in image buffer */
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JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */
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int row_stride; /* physical row width in image buffer */
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uint8_t* output;
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unsigned long size;
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@@ -116,17 +116,17 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
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/* First we supply a description of the input image.
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* Four fields of the cinfo struct must be filled in:
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*/
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cinfo.image_width = image_width; /* image width and height, in pixels */
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cinfo.image_width = image_width; /* image width and height, in pixels */
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cinfo.image_height = image_height;
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cinfo.input_components = 4; /* # of color components per pixel */
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cinfo.in_color_space = JCS_EXT_RGBA; /* colorspace of input image */
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cinfo.input_components = 4; /* # of color components per pixel */
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cinfo.in_color_space = JCS_EXT_RGBA; /* colorspace of input image */
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/* Now use the library's routine to set default compression parameters.
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* (You must set at least cinfo.in_color_space before calling this,
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* since the defaults depend on the source color space.)
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*/
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jpeg_set_defaults(&cinfo);
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jpeg_set_colorspace(&cinfo, (J_COLOR_SPACE) opts.color_space);
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jpeg_set_colorspace(&cinfo, (J_COLOR_SPACE)opts.color_space);
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if (opts.quant_table != -1) {
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jpeg_c_set_int_param(&cinfo, JINT_BASE_QUANT_TBL_IDX, opts.quant_table);
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@@ -146,17 +146,17 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
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jpeg_c_set_bool_param(&cinfo, JBOOLEAN_TRELLIS_Q_OPT, opts.trellis_opt_table);
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jpeg_c_set_int_param(&cinfo, JINT_TRELLIS_NUM_LOOPS, opts.trellis_loops);
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// A little hacky to build a string for this, but it means we can use set_quality_ratings which
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// does some useful heuristic stuff.
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// A little hacky to build a string for this, but it means we can use
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// set_quality_ratings which does some useful heuristic stuff.
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std::string quality_str = std::to_string(opts.quality);
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if (opts.separate_chroma_quality && opts.color_space == JCS_YCbCr) {
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quality_str += "," + std::to_string(opts.chroma_quality);
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}
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char const *pqual = quality_str.c_str();
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char const* pqual = quality_str.c_str();
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set_quality_ratings(&cinfo, (char*) pqual, opts.baseline);
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set_quality_ratings(&cinfo, (char*)pqual, opts.baseline);
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if (!opts.auto_subsample && opts.color_space == JCS_YCbCr) {
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cinfo.comp_info[0].h_samp_factor = opts.chroma_subsample;
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@@ -191,8 +191,8 @@ val encode(std::string image_in, int image_width, int image_height, MozJpegOptio
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* Here the array is only one element long, but you could pass
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* more than one scanline at a time if that's more convenient.
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*/
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row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride];
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(void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
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row_pointer[0] = &image_buffer[cinfo.next_scanline * row_stride];
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(void)jpeg_write_scanlines(&cinfo, row_pointer, 1);
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}
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/* Step 6: Finish compression */
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@@ -213,23 +213,22 @@ void free_result() {
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EMSCRIPTEN_BINDINGS(my_module) {
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value_object<MozJpegOptions>("MozJpegOptions")
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.field("quality", &MozJpegOptions::quality)
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.field("baseline", &MozJpegOptions::baseline)
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.field("arithmetic", &MozJpegOptions::arithmetic)
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.field("progressive", &MozJpegOptions::progressive)
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.field("optimize_coding", &MozJpegOptions::optimize_coding)
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.field("smoothing", &MozJpegOptions::smoothing)
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.field("color_space", &MozJpegOptions::color_space)
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.field("quant_table", &MozJpegOptions::quant_table)
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.field("trellis_multipass", &MozJpegOptions::trellis_multipass)
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.field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
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.field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
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.field("trellis_loops", &MozJpegOptions::trellis_loops)
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.field("chroma_subsample", &MozJpegOptions::chroma_subsample)
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.field("auto_subsample", &MozJpegOptions::auto_subsample)
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.field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
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.field("chroma_quality", &MozJpegOptions::chroma_quality)
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;
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.field("quality", &MozJpegOptions::quality)
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.field("baseline", &MozJpegOptions::baseline)
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.field("arithmetic", &MozJpegOptions::arithmetic)
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.field("progressive", &MozJpegOptions::progressive)
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.field("optimize_coding", &MozJpegOptions::optimize_coding)
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.field("smoothing", &MozJpegOptions::smoothing)
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.field("color_space", &MozJpegOptions::color_space)
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.field("quant_table", &MozJpegOptions::quant_table)
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.field("trellis_multipass", &MozJpegOptions::trellis_multipass)
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.field("trellis_opt_zero", &MozJpegOptions::trellis_opt_zero)
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.field("trellis_opt_table", &MozJpegOptions::trellis_opt_table)
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.field("trellis_loops", &MozJpegOptions::trellis_loops)
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.field("chroma_subsample", &MozJpegOptions::chroma_subsample)
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.field("auto_subsample", &MozJpegOptions::auto_subsample)
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.field("separate_chroma_quality", &MozJpegOptions::separate_chroma_quality)
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.field("chroma_quality", &MozJpegOptions::chroma_quality);
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function("version", &version);
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function("encode", &encode);
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