diff options
author | David Walter Seikel | 2013-01-13 17:24:39 +1000 |
---|---|---|
committer | David Walter Seikel | 2013-01-13 17:24:39 +1000 |
commit | 393b5cd1dc438872af89d334ef6e5fcc59f27d47 (patch) | |
tree | 6a14521219942a08a1b95cb2f5a923a9edd60f63 /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c | |
parent | Add a note about rasters suggested start up code. (diff) | |
download | SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.zip SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.gz SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.bz2 SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.xz |
Added Irrlicht 1.8, but without all the Windows binaries.
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c')
-rw-r--r-- | libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c new file mode 100644 index 0000000..fed66ca --- /dev/null +++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapistd.c | |||
@@ -0,0 +1,161 @@ | |||
1 | /* | ||
2 | * jcapistd.c | ||
3 | * | ||
4 | * Copyright (C) 1994-1996, Thomas G. Lane. | ||
5 | * This file is part of the Independent JPEG Group's software. | ||
6 | * For conditions of distribution and use, see the accompanying README file. | ||
7 | * | ||
8 | * This file contains application interface code for the compression half | ||
9 | * of the JPEG library. These are the "standard" API routines that are | ||
10 | * used in the normal full-compression case. They are not used by a | ||
11 | * transcoding-only application. Note that if an application links in | ||
12 | * jpeg_start_compress, it will end up linking in the entire compressor. | ||
13 | * We thus must separate this file from jcapimin.c to avoid linking the | ||
14 | * whole compression library into a transcoder. | ||
15 | */ | ||
16 | |||
17 | #define JPEG_INTERNALS | ||
18 | #include "jinclude.h" | ||
19 | #include "jpeglib.h" | ||
20 | |||
21 | |||
22 | /* | ||
23 | * Compression initialization. | ||
24 | * Before calling this, all parameters and a data destination must be set up. | ||
25 | * | ||
26 | * We require a write_all_tables parameter as a failsafe check when writing | ||
27 | * multiple datastreams from the same compression object. Since prior runs | ||
28 | * will have left all the tables marked sent_table=TRUE, a subsequent run | ||
29 | * would emit an abbreviated stream (no tables) by default. This may be what | ||
30 | * is wanted, but for safety's sake it should not be the default behavior: | ||
31 | * programmers should have to make a deliberate choice to emit abbreviated | ||
32 | * images. Therefore the documentation and examples should encourage people | ||
33 | * to pass write_all_tables=TRUE; then it will take active thought to do the | ||
34 | * wrong thing. | ||
35 | */ | ||
36 | |||
37 | GLOBAL(void) | ||
38 | jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables) | ||
39 | { | ||
40 | if (cinfo->global_state != CSTATE_START) | ||
41 | ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); | ||
42 | |||
43 | if (write_all_tables) | ||
44 | jpeg_suppress_tables(cinfo, FALSE); /* mark all tables to be written */ | ||
45 | |||
46 | /* (Re)initialize error mgr and destination modules */ | ||
47 | (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); | ||
48 | (*cinfo->dest->init_destination) (cinfo); | ||
49 | /* Perform master selection of active modules */ | ||
50 | jinit_compress_master(cinfo); | ||
51 | /* Set up for the first pass */ | ||
52 | (*cinfo->master->prepare_for_pass) (cinfo); | ||
53 | /* Ready for application to drive first pass through jpeg_write_scanlines | ||
54 | * or jpeg_write_raw_data. | ||
55 | */ | ||
56 | cinfo->next_scanline = 0; | ||
57 | cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING); | ||
58 | } | ||
59 | |||
60 | |||
61 | /* | ||
62 | * Write some scanlines of data to the JPEG compressor. | ||
63 | * | ||
64 | * The return value will be the number of lines actually written. | ||
65 | * This should be less than the supplied num_lines only in case that | ||
66 | * the data destination module has requested suspension of the compressor, | ||
67 | * or if more than image_height scanlines are passed in. | ||
68 | * | ||
69 | * Note: we warn about excess calls to jpeg_write_scanlines() since | ||
70 | * this likely signals an application programmer error. However, | ||
71 | * excess scanlines passed in the last valid call are *silently* ignored, | ||
72 | * so that the application need not adjust num_lines for end-of-image | ||
73 | * when using a multiple-scanline buffer. | ||
74 | */ | ||
75 | |||
76 | GLOBAL(JDIMENSION) | ||
77 | jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, | ||
78 | JDIMENSION num_lines) | ||
79 | { | ||
80 | JDIMENSION row_ctr, rows_left; | ||
81 | |||
82 | if (cinfo->global_state != CSTATE_SCANNING) | ||
83 | ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); | ||
84 | if (cinfo->next_scanline >= cinfo->image_height) | ||
85 | WARNMS(cinfo, JWRN_TOO_MUCH_DATA); | ||
86 | |||
87 | /* Call progress monitor hook if present */ | ||
88 | if (cinfo->progress != NULL) { | ||
89 | cinfo->progress->pass_counter = (long) cinfo->next_scanline; | ||
90 | cinfo->progress->pass_limit = (long) cinfo->image_height; | ||
91 | (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); | ||
92 | } | ||
93 | |||
94 | /* Give master control module another chance if this is first call to | ||
95 | * jpeg_write_scanlines. This lets output of the frame/scan headers be | ||
96 | * delayed so that application can write COM, etc, markers between | ||
97 | * jpeg_start_compress and jpeg_write_scanlines. | ||
98 | */ | ||
99 | if (cinfo->master->call_pass_startup) | ||
100 | (*cinfo->master->pass_startup) (cinfo); | ||
101 | |||
102 | /* Ignore any extra scanlines at bottom of image. */ | ||
103 | rows_left = cinfo->image_height - cinfo->next_scanline; | ||
104 | if (num_lines > rows_left) | ||
105 | num_lines = rows_left; | ||
106 | |||
107 | row_ctr = 0; | ||
108 | (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines); | ||
109 | cinfo->next_scanline += row_ctr; | ||
110 | return row_ctr; | ||
111 | } | ||
112 | |||
113 | |||
114 | /* | ||
115 | * Alternate entry point to write raw data. | ||
116 | * Processes exactly one iMCU row per call, unless suspended. | ||
117 | */ | ||
118 | |||
119 | GLOBAL(JDIMENSION) | ||
120 | jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data, | ||
121 | JDIMENSION num_lines) | ||
122 | { | ||
123 | JDIMENSION lines_per_iMCU_row; | ||
124 | |||
125 | if (cinfo->global_state != CSTATE_RAW_OK) | ||
126 | ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); | ||
127 | if (cinfo->next_scanline >= cinfo->image_height) { | ||
128 | WARNMS(cinfo, JWRN_TOO_MUCH_DATA); | ||
129 | return 0; | ||
130 | } | ||
131 | |||
132 | /* Call progress monitor hook if present */ | ||
133 | if (cinfo->progress != NULL) { | ||
134 | cinfo->progress->pass_counter = (long) cinfo->next_scanline; | ||
135 | cinfo->progress->pass_limit = (long) cinfo->image_height; | ||
136 | (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); | ||
137 | } | ||
138 | |||
139 | /* Give master control module another chance if this is first call to | ||
140 | * jpeg_write_raw_data. This lets output of the frame/scan headers be | ||
141 | * delayed so that application can write COM, etc, markers between | ||
142 | * jpeg_start_compress and jpeg_write_raw_data. | ||
143 | */ | ||
144 | if (cinfo->master->call_pass_startup) | ||
145 | (*cinfo->master->pass_startup) (cinfo); | ||
146 | |||
147 | /* Verify that at least one iMCU row has been passed. */ | ||
148 | lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE; | ||
149 | if (num_lines < lines_per_iMCU_row) | ||
150 | ERREXIT(cinfo, JERR_BUFFER_SIZE); | ||
151 | |||
152 | /* Directly compress the row. */ | ||
153 | if (! (*cinfo->coef->compress_data) (cinfo, data)) { | ||
154 | /* If compressor did not consume the whole row, suspend processing. */ | ||
155 | return 0; | ||
156 | } | ||
157 | |||
158 | /* OK, we processed one iMCU row. */ | ||
159 | cinfo->next_scanline += lines_per_iMCU_row; | ||
160 | return lines_per_iMCU_row; | ||
161 | } | ||