From f140e3263d6dab396ece281ab888f29e69d89406 Mon Sep 17 00:00:00 2001
From: pixel <pixel>
Date: Sun, 8 Apr 2007 17:44:07 +0000
Subject: Basic jpeg support now working.

---
 lib/Image.cc | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

(limited to 'lib')

diff --git a/lib/Image.cc b/lib/Image.cc
index a2e7a7c..8b973f6 100644
--- a/lib/Image.cc
+++ b/lib/Image.cc
@@ -26,6 +26,7 @@ typedef my_destination_mgr * my_dest_ptr;
 METHODDEF(void)
 init_destination (j_compress_ptr cinfo)
 {
+  Base::printm(M_INFO, "init_destination()\n");
   my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
 
   /* Allocate the output buffer --- it will be released when done with image */
@@ -40,6 +41,7 @@ init_destination (j_compress_ptr cinfo)
 METHODDEF(boolean)
 empty_output_buffer (j_compress_ptr cinfo)
 {
+  Base::printm(M_INFO, "empty_output_buffer()\n");
   my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
 
   if (dest->outfile->write(dest->buffer, OUTPUT_BUF_SIZE) !=
@@ -55,6 +57,8 @@ empty_output_buffer (j_compress_ptr cinfo)
 METHODDEF(void)
 term_destination (j_compress_ptr cinfo)
 {
+  Base::printm(M_INFO, "term_destination()\n");
+
   my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
   size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer;
 
@@ -69,6 +73,8 @@ GLOBAL(void)
 jpeg_handle_dest (j_compress_ptr cinfo, Handle * outfile)
 {
   my_dest_ptr dest;
+  
+  Base::printm(M_INFO, "jpeg_handle_dest()\n");
 
   /* The destination object is made permanent so that multiple JPEG images
    * can be written to the same file without re-executing jpeg_stdio_dest.
@@ -207,12 +213,13 @@ bool Image::Prepare(unsigned int f) throw (GeneralException) {
             throw GeneralException("You can't create a jpeg image when the library libjpeg isn't linked in.");
 #else
             {
+                printm(M_INFO, "Converting image buffer to 24 bits - %ix%i.\n", x, y);
                 char * rgb_buffer = (char *) malloc(x * y * 3);
-                for (iy = 0; iy < y; y++) {
-                    for (ix = 0; ix < x; x++) {
-                        rgb_buffer[(ix + iy * x) * 3 + 0] = img[ix + iy * x].R;
+                for (iy = 0; iy < y; iy++) {
+                    for (ix = 0; ix < x; ix++) {
+                        rgb_buffer[(ix + iy * x) * 3 + 0] = img[ix + iy * x].B;
                         rgb_buffer[(ix + iy * x) * 3 + 1] = img[ix + iy * x].G;
-                        rgb_buffer[(ix + iy * x) * 3 + 2] = img[ix + iy * x].B;
+                        rgb_buffer[(ix + iy * x) * 3 + 2] = img[ix + iy * x].R;
                     }
                 }
                 
@@ -229,14 +236,16 @@ bool Image::Prepare(unsigned int f) throw (GeneralException) {
                 cinfo.image_height = y;
                 cinfo.input_components = 3;
                 cinfo.in_color_space = JCS_RGB;
+                printm(M_INFO, "Starting jpeg stuff...\n");
                 jpeg_set_defaults(&cinfo);
-                jpeg_set_quality(&cinfo, 9, TRUE /* limit to baseline-JPEG values */);
+                jpeg_set_quality(&cinfo, 85, TRUE /* limit to baseline-JPEG values */);
 
                 jpeg_start_compress(&cinfo, TRUE);
 
                 int row_stride = x * 3;
 
                 while (cinfo.next_scanline < cinfo.image_height) {
+                    printm(M_INFO, "Looping...\n");
                     row_pointer[0] = (JSAMPLE *) &rgb_buffer[cinfo.next_scanline * row_stride];
                     (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
                 }
-- 
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