diff --git a/guacamole/proxy/Makefile b/guacamole/proxy/Makefile index 715012488..cd7122b4f 100644 --- a/guacamole/proxy/Makefile +++ b/guacamole/proxy/Makefile @@ -4,7 +4,7 @@ all: guacd guacd: daemon.o proxy.o - $(CC) daemon.o proxy.o -o guacd + $(CC) daemon.o proxy.o -l png -o guacd proxy.o: proxy.c proxy.h $(CC) -c -ansi -pedantic proxy.c diff --git a/guacamole/proxy/proxy.c b/guacamole/proxy/proxy.c index 2770bb43a..f3834fa2a 100644 --- a/guacamole/proxy/proxy.c +++ b/guacamole/proxy/proxy.c @@ -1,11 +1,106 @@ #include +#include #include "proxy.h" -void proxy(int client_fd) { +struct guac_write_info { + int client_fd; +}; - write(client_fd, "name:hello;size:1024,768;error:Test finished.;", 46); +void guac_write_png(png_structp png, png_bytep data, png_size_t length) { + + int client_fd; + + client_fd = ((struct guac_write_info*) png->io_ptr)->client_fd; + + /* TODO: */ + /* write_base64(client_fd, data, length); */ + +} + +void guac_write_flush(png_structp png) { + printf("HERE!\n"); +} + +void proxy(int client_fd) { + + struct guac_write_info write_info; + + png_structp png; + png_infop png_info; + png_byte** png_rows; + png_byte* row; + + int x, y; + + /* Set up PNG writer */ + png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); + if (!png) { + perror("Error initializing libpng write structure"); + return; + } + + png_info = png_create_info_struct(png); + if (!png_info) { + perror("Error initializing libpng info structure"); + png_destroy_write_struct(&png, NULL); + return; + } + + /* Set error handler */ + if (setjmp(png_jmpbuf(png))) { + perror("Error setting handler"); + png_destroy_write_struct(&png, &png_info); + return; + } + + /* Set PNG IHDR */ + png_set_IHDR( + png, + png_info, + 100, /* width */ + 100, /* height */ + 8, + PNG_COLOR_TYPE_RGB, + PNG_INTERLACE_NONE, + PNG_COMPRESSION_TYPE_DEFAULT, + PNG_FILTER_TYPE_DEFAULT + ); + + /* Allocate rows for PNG */ + png_rows = png_malloc(png, 100 /* height */ * sizeof(png_byte*)); + + write_info.client_fd = client_fd; + png_set_write_fn(png, &write_info, guac_write_png, guac_write_flush); + + /*** CREATE AND WRITE IMAGE ***/ + + /* For now, generate test white image */ + for (y=0; y<100 /* height */; y++) { + + row = (png_byte*) png_malloc(png, sizeof(png_byte) * 3 * 100 /* width */); + png_rows[y] = row; + + for (x=0; x<100 /* width */; x++) { + *row++ = 0xFF; + *row++ = 0xFF; + *row++ = 0xFF; + } + } + + + png_set_rows(png, png_info, png_rows); + png_write_png(png, png_info, PNG_TRANSFORM_IDENTITY, NULL); + + write(client_fd, "name:hello;size:1024,768;error:Test finished.;", 46); + + /* Free PNG data */ + for (y = 0; y<100 /* height */; y++) + png_free(png, png_rows[y]); + png_free(png, png_rows); + + png_destroy_write_struct(&png, &png_info); }