+++ /dev/null
-
-/*
- * CINELERRA
- * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include "asset.h"
-#include "edit.h"
-#include "file.h"
-#include "filepng.h"
-#include "language.h"
-#include "mwindow.inc"
-#include "vframe.h"
-#include "videodevice.inc"
-#include "mainerror.h"
-
-#include <png.h>
-#include <string.h>
-
-FilePNG::FilePNG(Asset *asset, File *file)
- : FileList(asset, file, "PNGLIST", ".png", FILE_PNG, FILE_PNG_LIST)
-{
-}
-
-FilePNG::~FilePNG()
-{
-}
-
-
-
-int FilePNG::check_sig(Asset *asset)
-{
- FILE *stream = fopen(asset->path, "rb");
-
- if(stream)
- {
-
-//printf("FilePNG::check_sig 1\n");
- char test[16];
- (void)fread(test, 16, 1, stream);
- fclose(stream);
-
-// if(png_sig_cmp((unsigned char*)test, 0, 8))
- if(png_check_sig((unsigned char*)test, 8))
- {
-//printf("FilePNG::check_sig 1\n");
- return 1;
- }
- else
- if(test[0] == 'P' && test[1] == 'N' && test[2] == 'G' &&
- test[3] == 'L' && test[4] == 'I' && test[5] == 'S' && test[6] == 'T')
- {
-//printf("FilePNG::check_sig 1\n");
- return 1;
- }
- }
- return 0;
-}
-
-
-
-void FilePNG::get_parameters(BC_WindowBase *parent_window,
- Asset *asset,
- BC_WindowBase* &format_window,
- int audio_options,
- int video_options)
-{
- if(video_options)
- {
- PNGConfigVideo *window = new PNGConfigVideo(parent_window, asset);
- format_window = window;
- window->create_objects();
- window->run_window();
- delete window;
- }
-}
-
-
-
-
-int FilePNG::can_copy_from(Asset *asset, int64_t position)
-{
- if(asset->format == FILE_PNG ||
- asset->format == FILE_PNG_LIST)
- return 1;
-
- return 0;
-}
-
-
-int FilePNG::colormodel_supported(int colormodel)
-{
- if (((colormodel == BC_RGBA8888) && (native_cmodel == BC_RGBA16161616))
- || ((colormodel == BC_RGB161616) && (native_cmodel == BC_RGBA16161616))
- || (colormodel == BC_RGB888))
- {
- return colormodel;
- }
- else if ((colormodel == BC_RGB161616) && (native_cmodel == BC_RGBA8888))
- {
- return BC_RGB888;
- }
- else
- {
- return native_cmodel;
- }
-}
-
-
-int FilePNG::get_best_colormodel(Asset *asset, int driver)
-{
- if(asset->png_use_alpha)
- return BC_RGBA8888;
- else
- return BC_RGB888;
-}
-
-
-
-
-int FilePNG::read_frame_header(char *path)
-{
- int result = 0;
- int color_type;
- int color_depth;
- int num_trans = 0;
-
- FILE *stream;
-
- if(!(stream = fopen(path, "rb")))
- {
- eprintf("Error while opening \"%s\" for reading. \n%m\n", asset->path);
- return 1;
- }
-
- png_structp png_ptr;
- png_infop info_ptr;
- png_infop end_info = 0;
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
- info_ptr = png_create_info_struct(png_ptr);
- png_init_io(png_ptr, stream);
-
-
- png_read_info(png_ptr, info_ptr);
-
- asset->width = png_get_image_width(png_ptr, info_ptr);
- asset->height = png_get_image_height(png_ptr, info_ptr);
- color_type = png_get_color_type(png_ptr, info_ptr);
- color_depth = png_get_bit_depth(png_ptr,info_ptr);
-
- png_get_tRNS(png_ptr, info_ptr, NULL, &num_trans, NULL);
-
- if (color_depth == 16)
- {
- if (color_type & PNG_COLOR_MASK_ALPHA)
- {
- native_cmodel = BC_RGBA16161616;
- }
- else
- {
- native_cmodel = BC_RGB161616;
- }
- }
- else
- if ((color_type & PNG_COLOR_MASK_ALPHA)
- || (num_trans > 0))
- {
- native_cmodel = BC_RGBA8888;
- }
- else
- {
- native_cmodel = BC_RGB888;
- }
-
-
- png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
- fclose(stream);
-
-
-
- return result;
-}
-
-
-
-
-static void read_function(png_structp png_ptr,
- png_bytep data,
- png_uint_32 length)
-{
- VFrame *input = (VFrame*)png_get_io_ptr(png_ptr);
-
- memcpy(data, input->get_data() + input->get_compressed_size(), length);
- input->set_compressed_size(input->get_compressed_size() + length);
-}
-
-static void write_function(png_structp png_ptr, png_bytep data, png_uint_32 length)
-{
- VFrame *output = (VFrame*)png_get_io_ptr(png_ptr);
- long total_length = output->get_compressed_size() + length;
- if(output->get_compressed_allocated() < total_length) {
- long new_length = 2 * (output->get_compressed_allocated() + length);
- output->allocate_compressed_data(new_length);
- }
- memcpy(output->get_data() + output->get_compressed_size(), data, length);
- output->set_compressed_size(total_length);
-}
-
-static void flush_function(png_structp png_ptr)
-{
-}
-
-
-int FilePNG::write_frame(VFrame *frame, VFrame *data, FrameWriterUnit *unit)
-{
- PNGUnit *png_unit = (PNGUnit*)unit;
- png_structp png_ptr = 0;
- png_infop info_ptr = 0;
- VFrame *output_frame;
- int result = 1;
- data->set_compressed_size(0);
-//printf("FilePNG::write_frame 1\n");
- native_cmodel = asset->png_use_alpha ? BC_RGBA8888 : BC_RGB888;
- if(frame->get_color_model() != native_cmodel)
- {
- if(!png_unit->temp_frame) png_unit->temp_frame = new VFrame(0,
- -1, asset->width, asset->height, native_cmodel, -1);
-
- png_unit->temp_frame->transfer_from(frame);
- output_frame = png_unit->temp_frame;
- }
- else
- output_frame = frame;
-
-//printf("FilePNG::write_frame 1\n");
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
- if( png_ptr && !setjmp(png_jmpbuf(png_ptr)) ) {
- info_ptr = png_create_info_struct(png_ptr);
- png_set_write_fn(png_ptr, data,
- (png_rw_ptr)write_function, (png_flush_ptr)flush_function);
- png_set_compression_level(png_ptr, 5);
-
- png_set_IHDR(png_ptr, info_ptr, asset->width, asset->height, 8,
- asset->png_use_alpha ? PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
- PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
- png_write_info(png_ptr, info_ptr);
- png_write_image(png_ptr, output_frame->get_rows());
- png_write_end(png_ptr, info_ptr);
- png_destroy_write_struct(&png_ptr, &info_ptr);
- result = 0;
- }
- else {
- char error[256]; png_error(png_ptr, error);
- fprintf(stderr, "FilePNG::write_frame failed: %s\n", error);
- }
-
- png_destroy_write_struct(&png_ptr, &info_ptr);
-//printf("FilePNG::write_frame 3 %d\n", data->get_compressed_size());
- return result;
-}
-
-int FilePNG::read_frame(VFrame *output, VFrame *input)
-{
- png_structp png_ptr;
- png_infop info_ptr;
- png_infop end_info = 0;
- int result = 0;
- int color_type;
- int color_depth;
- int colormodel;
- int size = input->get_compressed_size();
- input->set_compressed_size(0);
-
-
- //printf("FilePNG::read_frame 1 %d %d\n", native_cmodel, output->get_color_model());
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
- info_ptr = png_create_info_struct(png_ptr);
- png_set_read_fn(png_ptr, input, (png_rw_ptr)read_function);
- png_read_info(png_ptr, info_ptr);
-
- int png_color_type = png_get_color_type(png_ptr, info_ptr);
- if (png_color_type == PNG_COLOR_TYPE_GRAY ||
- png_color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- {
- png_set_gray_to_rgb(png_ptr);
- }
-
- colormodel = output->get_color_model();
- color_type = png_get_color_type(png_ptr, info_ptr);
- color_depth = png_get_bit_depth(png_ptr,info_ptr);
-
- if (((native_cmodel == BC_RGBA16161616)||(native_cmodel == BC_RGB161616))
- && ((colormodel == BC_RGBA8888)||(colormodel == BC_RGB888)))
- {
- png_set_strip_16(png_ptr);
- }
-
- /* If we're dropping the alpha channel, use the background color of the image
- otherwise, use black */
- if (((native_cmodel == BC_RGBA16161616)||(native_cmodel == BC_RGBA8888))
- && ((colormodel == BC_RGB161616)||(colormodel == BC_RGB888)))
- {
- png_color_16 my_background;
- png_color_16p image_background;
-
- memset(&my_background,0,sizeof(png_color_16));
-
- if (png_get_bKGD(png_ptr, info_ptr, &image_background))
- {
- png_set_background(png_ptr, image_background, PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
- }
- else
- {
- png_set_background(png_ptr, &my_background, PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
- }
- }
-
- /* Little endian */
- if ((color_depth == 16)
- &&((colormodel == BC_RGBA16161616)||(colormodel == BC_RGB161616)))
- {
- png_set_swap(png_ptr);
- }
-
- if (!(color_type & PNG_COLOR_MASK_COLOR))
- {
- png_set_gray_to_rgb(png_ptr);
- }
-
- if (color_type & PNG_COLOR_MASK_PALETTE)
- {
- png_set_palette_to_rgb(png_ptr);
- }
-
- if (color_depth <= 8)
- {
- png_set_expand(png_ptr);
- }
-
-/* read the image */
- png_read_image(png_ptr, output->get_rows());
-//printf("FilePNG::read_frame 3\n");
- png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
-
- input->set_compressed_size(size);
-
-//printf("FilePNG::read_frame 4\n");
- return result;
-}
-
-FrameWriterUnit* FilePNG::new_writer_unit(FrameWriter *writer)
-{
- return new PNGUnit(this, writer);
-}
-
-
-
-
-
-
-
-
-
-
-
-
-PNGUnit::PNGUnit(FilePNG *file, FrameWriter *writer)
- : FrameWriterUnit(writer)
-{
- this->file = file;
- temp_frame = 0;
-}
-PNGUnit::~PNGUnit()
-{
- if(temp_frame) delete temp_frame;
-}
-
-
-
-
-
-
-
-
-
-PNGConfigVideo::PNGConfigVideo(BC_WindowBase *parent_window, Asset *asset)
- : BC_Window(PROGRAM_NAME ": Video Compression",
- parent_window->get_abs_cursor_x(1),
- parent_window->get_abs_cursor_y(1),
- 200,
- 100)
-{
- this->parent_window = parent_window;
- this->asset = asset;
-}
-
-PNGConfigVideo::~PNGConfigVideo()
-{
-}
-
-void PNGConfigVideo::create_objects()
-{
- lock_window("PNGConfigVideo::create_objects()");
- int x = 10, y = 10;
- add_subwindow(new PNGUseAlpha(this, x, y));
- add_subwindow(new BC_OKButton(this));
- show_window(1);
- unlock_window();
-}
-
-int PNGConfigVideo::close_event()
-{
- set_done(0);
- return 1;
-}
-
-
-PNGUseAlpha::PNGUseAlpha(PNGConfigVideo *gui, int x, int y)
- : BC_CheckBox(x, y, gui->asset->png_use_alpha, _("Use alpha"))
-{
- this->gui = gui;
-}
-
-int PNGUseAlpha::handle_event()
-{
- gui->asset->png_use_alpha = get_value();
- return 1;
-}
-
-
-
projects / goodguy / history.git / blobdiff