From 2a334a454a1b21f490f1a6f38e642d7d6fb259ff Mon Sep 17 00:00:00 2001 From: ludwig Date: Thu, 14 Feb 2008 11:13:51 +0000 Subject: remove code duplicated from libjpeg and make internal functions static git-svn-id: svn://svn.icculus.org/quake3/trunk@1260 edf5b092-35ff-0310-97b2-ce42778d08ea --- code/renderer/tr_image_jpg.c | 104 ++++--------------------------------------- 1 file changed, 8 insertions(+), 96 deletions(-) (limited to 'code/renderer/tr_image_jpg.c') diff --git a/code/renderer/tr_image_jpg.c b/code/renderer/tr_image_jpg.c index 9add7dd..3c43cc7 100644 --- a/code/renderer/tr_image_jpg.c +++ b/code/renderer/tr_image_jpg.c @@ -230,7 +230,8 @@ typedef my_destination_mgr * my_dest_ptr; * before any data is actually written. */ -void init_destination (j_compress_ptr cinfo) +static void +init_destination (j_compress_ptr cinfo) { my_dest_ptr dest = (my_dest_ptr) cinfo->dest; @@ -262,103 +263,12 @@ void init_destination (j_compress_ptr cinfo) * write it out when emptying the buffer externally. */ -boolean empty_output_buffer (j_compress_ptr cinfo) +static boolean +empty_output_buffer (j_compress_ptr cinfo) { return TRUE; } - -/* - * Compression initialization. - * Before calling this, all parameters and a data destination must be set up. - * - * We require a write_all_tables parameter as a failsafe check when writing - * multiple datastreams from the same compression object. Since prior runs - * will have left all the tables marked sent_table=TRUE, a subsequent run - * would emit an abbreviated stream (no tables) by default. This may be what - * is wanted, but for safety's sake it should not be the default behavior: - * programmers should have to make a deliberate choice to emit abbreviated - * images. Therefore the documentation and examples should encourage people - * to pass write_all_tables=TRUE; then it will take active thought to do the - * wrong thing. - */ - -GLOBAL void -jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (write_all_tables) - jpeg_suppress_tables(cinfo, FALSE); /* mark all tables to be written */ - - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Perform master selection of active modules */ - jinit_compress_master(cinfo); - /* Set up for the first pass */ - (*cinfo->master->prepare_for_pass) (cinfo); - /* Ready for application to drive first pass through jpeg_write_scanlines - * or jpeg_write_raw_data. - */ - cinfo->next_scanline = 0; - cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING); -} - - -/* - * Write some scanlines of data to the JPEG compressor. - * - * The return value will be the number of lines actually written. - * This should be less than the supplied num_lines only in case that - * the data destination module has requested suspension of the compressor, - * or if more than image_height scanlines are passed in. - * - * Note: we warn about excess calls to jpeg_write_scanlines() since - * this likely signals an application programmer error. However, - * excess scanlines passed in the last valid call are *silently* ignored, - * so that the application need not adjust num_lines for end-of-image - * when using a multiple-scanline buffer. - */ - -GLOBAL JDIMENSION -jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, - JDIMENSION num_lines) -{ - JDIMENSION row_ctr, rows_left; - - if (cinfo->global_state != CSTATE_SCANNING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->next_scanline >= cinfo->image_height) - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->next_scanline; - cinfo->progress->pass_limit = (long) cinfo->image_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Give master control module another chance if this is first call to - * jpeg_write_scanlines. This lets output of the frame/scan headers be - * delayed so that application can write COM, etc, markers between - * jpeg_start_compress and jpeg_write_scanlines. - */ - if (cinfo->master->call_pass_startup) - (*cinfo->master->pass_startup) (cinfo); - - /* Ignore any extra scanlines at bottom of image. */ - rows_left = cinfo->image_height - cinfo->next_scanline; - if (num_lines > rows_left) - num_lines = rows_left; - - row_ctr = 0; - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines); - cinfo->next_scanline += row_ctr; - return row_ctr; -} - /* * Terminate destination --- called by jpeg_finish_compress * after all data has been written. Usually needs to flush buffer. @@ -370,7 +280,8 @@ jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, static int hackSize; -void term_destination (j_compress_ptr cinfo) +static void +term_destination (j_compress_ptr cinfo) { my_dest_ptr dest = (my_dest_ptr) cinfo->dest; size_t datacount = dest->size - dest->pub.free_in_buffer; @@ -384,7 +295,8 @@ void term_destination (j_compress_ptr cinfo) * for closing it after finishing compression. */ -void jpegDest (j_compress_ptr cinfo, byte* outfile, int size) +static void +jpegDest (j_compress_ptr cinfo, byte* outfile, int size) { my_dest_ptr dest; -- cgit v1.2.3