unsigned char *
swf_tag_jpeg3_output_detail(swf_tag_t *tag, unsigned long *length,
struct swf_object_ *swf) {
swf_tag_jpeg_detail_t *swf_tag_jpeg = NULL;
bitstream_t *bs = NULL;
unsigned char *data = NULL, *new_buff = NULL;
unsigned long offset_to_alpha;
unsigned long compsize, old_size;
int result;
if (tag == NULL) {
fprintf(stderr, "swf_tag_jpeg3_output_detail: tag == NULL\n");
}
if (swf == NULL) {
fprintf(stderr, "swf_tag_jpeg3_output_detail: swf == NULL\n");
}
if (length == NULL) {
fprintf(stderr, "swf_tag_jpeg3_output_detail: length == NULL\n");
}
swf_tag_jpeg = (swf_tag_jpeg_detail_t *) tag->detail;
*length = 0;
bs = bitstream_open();
bitstream_putbytesLE(bs, swf_tag_jpeg->image_id, 2);
bitstream_putbytesLE(bs, swf_tag_jpeg->jpeg_data_len, 4);
bitstream_putstring(bs, swf_tag_jpeg->jpeg_data, swf_tag_jpeg->jpeg_data_len);
offset_to_alpha = swf_tag_jpeg->jpeg_data_len;
old_size = swf_tag_jpeg->alpha_data_len;
compsize = old_size * 1.001 + 12; // increasing, rarely situation
new_buff = malloc(compsize);
// result = compress2(new_buff, &compsize, swf_tag_jpeg->alpha_data, old_size, swf->compress_level);
result = compress2(new_buff, &compsize, swf_tag_jpeg->alpha_data, old_size, swf->compress_level);
if (result != Z_OK) {
if (result == Z_MEM_ERROR) {
fprintf(stderr, "swf_tag_jpeg_output_detail: compress Z_MEM_ERROR: can't malloc\n");
} else if (result == Z_BUF_ERROR) {
fprintf(stderr, "swf_tag_jpeg_output_detail: compress Z_BUF_ERROR: not enough buff size\n");
} else {
fprintf(stderr, "swf_tag_jpeg_output_detail: compress failed by unknown reason\n");
}
free(new_buff);
bitstream_close(bs);
return NULL; // FAILURE
}
bitstream_putstring(bs, new_buff, compsize);
free(new_buff);
data = bitstream_steal(bs, length);
bitstream_close(bs);
return data;
}
int
swf_tag_jpeg_input_detail(swf_tag_t *tag,
struct swf_object_ *swf) {
swf_tag_jpeg_detail_t *swf_tag_jpeg = NULL;
unsigned char *data = NULL;
unsigned long length;
bitstream_t *bs = NULL;
(void) swf;
if (tag == NULL) {
fprintf(stderr, "ERROR: swf_tag_jpeg_input_detail: swf_tag_jpeg == NULL\n");
return 1;
}
swf_tag_jpeg = tag->detail;
data = tag->data;
length = tag->length;
if (swf_tag_jpeg == NULL) {
fprintf(stderr, "ERROR: swf_tag_jpeg_input_detail: swf_tag_jpeg == NULL\n");
return 1;
}
bs = bitstream_open();
bitstream_input(bs, data, length);
swf_tag_jpeg->image_id = bitstream_getbytesLE(bs, 2);
swf_tag_jpeg->jpeg_data = bitstream_output_sub(bs, 2, length - 2);
swf_tag_jpeg->jpeg_data_len = length - 2;
swf_tag_jpeg->alpha_data = NULL;
swf_tag_jpeg->alpha_data_len = 0;
bitstream_close(bs);
return 0;
}
int
swf_tag_action_input_detail(swf_tag_t *tag, struct swf_object_ *swf) {
swf_tag_action_detail_t *swf_tag_action = tag->detail;
unsigned char *data = tag->data;
unsigned long length = tag->length;
bitstream_t *bs;
(void) swf;
if (tag == NULL) {
fprintf(stderr, "ERROR: swf_tag_action_input_detail: tag == NULL\n");
return 1;
}
swf_tag_action = tag->detail;
data = tag->data;
length = tag->length;
if (swf_tag_action == NULL) {
fprintf(stderr, "ERROR: swf_tag_action_input_detail: swf_tag_action == NULL\n");
return 1;
}
bs = bitstream_open();
bitstream_input(bs, data, length);
if (tag->code == 59) { // DoInitAction
swf_tag_action->action_sprite = bitstream_getbytesLE(bs, 2);
} else { // DoAction
swf_tag_action->action_sprite = 0; // fail safe
}
swf_tag_action->action_list = swf_action_list_create();
if (swf_tag_action->action_list == NULL) {
fprintf(stderr, "swf_tag_action_input_detail: swf_action_list_create failed\n");
bitstream_close(bs);
return 1;
}
if (swf_action_list_parse(bs, swf_tag_action->action_list)) {
fprintf(stderr, "swf_tag_action_input_detail: swf_action_list_parse failed\n");
bitstream_close(bs);
return 1;
}
bitstream_close(bs);
return 0;
}
unsigned char *
swf_tag_action_output_detail(swf_tag_t *tag, unsigned long *length,
struct swf_object_ *swf) {
swf_tag_action_detail_t *swf_tag_action = (swf_tag_action_detail_t *) tag->detail;
bitstream_t *bs;
unsigned char *data;
*length = 0;
(void) swf;
bs = bitstream_open();
if (tag->code == 59) { // DoInitAction
bitstream_putbytesLE(bs, swf_tag_action->action_sprite, 2);
} else { // DoAction
; // nothing
}
swf_action_list_build(bs,swf_tag_action->action_list);
data = bitstream_steal(bs, length);
bitstream_close(bs);
return data;
}
unsigned char *
swf_tag_jpeg_output_detail(swf_tag_t *tag, unsigned long *length,
struct swf_object_ *swf) {
swf_tag_jpeg_detail_t *swf_tag_jpeg = NULL;
bitstream_t *bs = NULL;
unsigned char *data = NULL;
(void) swf;
if (tag == NULL) {
fprintf(stderr, "swf_tag_jpeg_output_detail: tag == NULL\n");
return NULL;
}
swf_tag_jpeg = (swf_tag_jpeg_detail_t *) tag->detail;
*length = 0;
bs = bitstream_open();
bitstream_putbytesLE(bs, swf_tag_jpeg->image_id, 2);
bitstream_putstring(bs, swf_tag_jpeg->jpeg_data, swf_tag_jpeg->jpeg_data_len);
data = bitstream_steal(bs, length);
bitstream_close(bs);
return data;
}
int
swf_tag_shape_input_detail(swf_tag_t *tag, struct swf_object_ *swf) {
swf_tag_shape_detail_t *swf_tag_shape = tag->detail;
unsigned char *data = tag->data;
unsigned long length = tag->length;
bitstream_t *bs;
int ret;
(void) swf;
if (swf_tag_shape == NULL) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape == NULL\n");
return 1;
}
// parse context
swf_tag_shape->_current_x = 0;
swf_tag_shape->_current_y = 0;
swf_tag_shape->_parse_condition = 0;
bs = bitstream_open();
bitstream_input(bs, data, length);
swf_tag_shape->shape_id = bitstream_getbytesLE(bs, 2);
ret = swf_rect_parse(bs, &(swf_tag_shape->rect));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->rect parse failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
// DefineMorphShape, DefineMorphShape2
swf_tag_shape->is_morph = (tag->code == 46) || (tag->code == 84);
// DefineShape4, DefineMorphShape2
swf_tag_shape->has_strokes = (tag->code == 83) || (tag->code == 84);
if (swf_tag_shape->is_morph) {
ret = swf_rect_parse(bs, &(swf_tag_shape->rect_morph));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->rect_morph parse failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
}
if (swf_tag_shape->has_strokes) {
ret = swf_rect_parse(bs, &(swf_tag_shape->stroke_rect));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->stroke_rect parse failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
if (swf_tag_shape->is_morph) {
ret = swf_rect_parse(bs, &(swf_tag_shape->stroke_rect_morph));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->stroke_rect_morph parse failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
}
swf_tag_shape->define_shape_reserved = bitstream_getbits(bs, 6);
swf_tag_shape->define_shape_non_scaling_strokes = bitstream_getbits(bs, 1);
swf_tag_shape->define_shape_scaling_strokes = bitstream_getbits(bs, 1);
}
if (swf_tag_shape->is_morph) {
bitstream_align(bs);
swf_tag_shape->offset_morph = bitstream_getbytesLE(bs, 4);
ret = swf_morph_shape_with_style_parse(bs, &swf_tag_shape->morph_shape_with_style, tag);
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_shape_with_style_parse swf_tag_shape->morph_shape_with_style failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
} else {
ret = swf_shape_with_style_parse(bs, &swf_tag_shape->shape_with_style, tag);
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_shape_with_style_parse swf_tag_shape->shape_with_style failed. shape_id=%d\n", swf_tag_shape->shape_id);
bitstream_close(bs);
return ret;
}
}
bitstream_close(bs);
return 0;
}
unsigned char *
swf_tag_shape_output_detail(swf_tag_t *tag, unsigned long *length,
struct swf_object_ *swf) {
swf_tag_shape_detail_t *swf_tag_shape = (swf_tag_shape_detail_t *) tag->detail;
bitstream_t *bs;
unsigned char *data;
int ret;
long offset_of_offset_morph = 0;
long tmp_offset_byte = 0;
long tmp_offset_bit = 0;
(void) swf;
*length = 0;
// build context
swf_tag_shape->_current_fill_style_num = 0;
swf_tag_shape->_current_line_style_num = 0;
swf_tag_shape->_current_x = 0;
swf_tag_shape->_current_y = 0;
//
bs = bitstream_open();
bitstream_putbytesLE(bs, swf_tag_shape->shape_id, 2);
swf_rect_build(bs, &(swf_tag_shape->rect));
// DefineMorphShape, DefineMorphShape2
swf_tag_shape->is_morph = (tag->code == 46) || (tag->code == 84);
// DefineShape4, DefineMorphShape2
swf_tag_shape->has_strokes = (tag->code == 83) || (tag->code == 84);
if (swf_tag_shape->is_morph) {
ret = swf_rect_build(bs, &(swf_tag_shape->rect_morph));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_output_detail: swf_tag_shape->rect_morph build failed\n");
bitstream_close(bs);
return NULL;
}
}
if (swf_tag_shape->has_strokes) {
ret = swf_rect_build(bs, &(swf_tag_shape->stroke_rect));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->stroke_rect build failed\n");
bitstream_close(bs);
return NULL;
}
if (swf_tag_shape->is_morph) {
ret = swf_rect_build(bs, &(swf_tag_shape->stroke_rect_morph));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_shape_input_detail: swf_tag_shape->stroke_rect_morph build failed\n");
bitstream_close(bs);
return NULL;
}
}
bitstream_putbits(bs, 6, swf_tag_shape->define_shape_reserved );
bitstream_putbits(bs, 1, swf_tag_shape->define_shape_non_scaling_strokes );
bitstream_putbits(bs, 1, swf_tag_shape->define_shape_scaling_strokes);
}
if (swf_tag_shape->is_morph) {
bitstream_align(bs);
// memory offset for overwrite this value after.
offset_of_offset_morph = bitstream_getbytepos(bs);
bitstream_putbytesLE(bs, swf_tag_shape->offset_morph, 4);
swf_morph_shape_with_style_build(bs, &swf_tag_shape->morph_shape_with_style, tag);
// rewind to overwrite offset_morph field and overwrite it.
// offset distance from offset_morph so -4 operation
swf_tag_shape->offset_morph = swf_tag_shape->morph_shape_with_style.offset_of_end_edges - offset_of_offset_morph - 4;
tmp_offset_byte = bitstream_getbytepos(bs); // save offset
tmp_offset_bit = bitstream_getbitpos(bs);
bitstream_setpos(bs, offset_of_offset_morph, 0);
bitstream_putbytesLE(bs, swf_tag_shape->offset_morph , 4);
bitstream_setpos(bs, tmp_offset_byte, tmp_offset_bit); // restore offset
} else {
ret = swf_shape_with_style_build(bs, &swf_tag_shape->shape_with_style, tag);
if (ret) {
fprintf(stderr, "swf_tag_shape_output_detail: swf_shape_with_style_build failed\n");
bitstream_close(bs);
return NULL;
}
}
data = bitstream_steal(bs, length);
bitstream_close(bs);
return data;
}
void *
pngconv_png2lossless(unsigned char *png_data, unsigned long png_data_len,
int *tag_no, int *format,
unsigned short *width, unsigned short *height,
void **colormap, int *colormap_count, int rgb15) {
volatile png_structp png_ptr = NULL;
volatile png_infop png_info_ptr = NULL;
my_png_buffer png_buff;
int bpp, color_type;
png_uint_32 png_width = 0, png_height = 0;
volatile png_bytepp png_image_data = NULL;
register png_uint_32 x, y;
void *image_data = NULL;
png_color *palette = NULL;
int palette_num = 0;
png_bytep trans = NULL;
int num_trans = 0;
png_color_16p trans_values = NULL;
if (png_data == NULL) {
fprintf(stderr, "pngconv_png2lossless: png_data == NULL\n");
return NULL;
}
if (png_sig_cmp((png_bytep)png_data, 0, 8)) { // bad signature
fprintf(stderr, "pngconv_png2lossless: is not PNG!\n");
return NULL;
}
png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, NULL,NULL,NULL);
if (! png_ptr) {
fprintf(stderr, "pngconv_png2lossless: can't create read_struct\n");
return NULL;
}
if (setjmp(png_jmpbuf(png_ptr))) {
fprintf(stderr, "pngconv_png2lossless: libpng error jump occured\n");
png_destroy_read_struct((png_structpp) &png_ptr,
(png_infopp) &png_info_ptr, NULL);
if (png_image_data) {
for (y=0 ; y < png_height ; y++) {
free(png_image_data[y]);
}
free(png_image_data);
}
return NULL;
}
png_info_ptr = png_create_info_struct(png_ptr);
if (! png_info_ptr) {
fprintf(stderr, "pngconv_png2lossless: can't create info_struct\n");
png_destroy_read_struct ((png_structpp)&png_ptr, NULL, NULL);
return NULL;
}
png_buff.data = png_data;
png_buff.data_len = png_data_len;
png_buff.data_offset = 0;
png_data_read(png_ptr, &png_buff);
png_read_info(png_ptr, png_info_ptr);
png_get_IHDR(png_ptr, png_info_ptr,
&png_width, &png_height, &bpp, &color_type,
NULL, NULL, NULL);
*width = (unsigned short) png_width;
*height = (unsigned short) png_height;
if ((rgb15 > 0) && (color_type != PNG_COLOR_TYPE_RGB)) { // warning
fprintf(stderr, "rgb15 is %d but color_type is not PNG24\n", rgb15);
}
switch(color_type) {
case PNG_COLOR_TYPE_PALETTE:
*format = 3;
png_get_PLTE(png_ptr, png_info_ptr, &palette, &palette_num);
if (png_get_tRNS(png_ptr, png_info_ptr, &trans, &num_trans,
&trans_values) && (num_trans > 0)) {
*tag_no = 36; // DefineBitsLossless2
} else {
*tag_no = 20; // DefineBitsLossless
}
break;
case PNG_COLOR_TYPE_RGB:
if (rgb15 > 0) {
*format = 4;
} else {
*format = 5;
}
*tag_no = 20; /* DefineBitsLossless */
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
*format = 5;
*tag_no = 36; /* DefineBitsLossless2 */
if (png_get_valid(png_ptr, png_info_ptr, PNG_INFO_tRNS))
png_set_tRNS_to_alpha(png_ptr);
break;
default:
fprintf(stderr, "pngconv_png2lossless: color_type=%d not implemented yet.\n", color_type);
png_destroy_read_struct((png_structpp)&png_ptr,
(png_infopp)&png_info_ptr, NULL);
return NULL;
}
if (bpp > 8) {
fprintf(stderr, "pngconv_png2lossless: bpp=%d not implemented yet. accept only bpp <= 8\n", bpp);
png_destroy_read_struct((png_structpp)&png_ptr,
(png_infopp)&png_info_ptr, NULL);
return NULL;
}
png_image_data = (png_bytepp) malloc(png_height * sizeof(png_bytep));
for (y=0 ; y < png_height ; y++) {
png_image_data[y] = (png_bytep) malloc(png_get_rowbytes(png_ptr, png_info_ptr));
}
png_read_image(png_ptr, png_image_data);
/*
* image copy
*/
if (color_type == PNG_COLOR_TYPE_PALETTE) {
register int i;
unsigned char *indices_data;
*colormap_count = palette_num;
if (num_trans == 0) {
swf_rgb_t *result_colormap = malloc(sizeof(swf_rgb_t) * palette_num); // Lossless
for (i=0 ; i < palette_num ; i++) {
result_colormap[i].red = palette[i].red;
result_colormap[i].green = palette[i].green;
result_colormap[i].blue = palette[i].blue;
}
*colormap = result_colormap;
} else {
swf_rgba_t *result_colormap = malloc(sizeof(swf_rgba_t) * palette_num); // Lossless2
for (i=0 ; i < palette_num ; i++) {
if (i < num_trans) {
int alpha_value = trans[i];
result_colormap[i].red = palette[i].red * alpha_value / 0xff;
result_colormap[i].green = palette[i].green * alpha_value / 0xff;
result_colormap[i].blue = palette[i].blue * alpha_value / 0xff;
result_colormap[i].alpha = alpha_value;
} else {
result_colormap[i].red = palette[i].red;
result_colormap[i].green = palette[i].green;
result_colormap[i].blue = palette[i].blue;
result_colormap[i].alpha = 0xff; // opaque
}
}
*colormap = result_colormap;
}
indices_data = malloc(((png_width+ 3) & -4) * png_height);
i = 0;
for (y=0 ; y < png_height ; y++) {
bitstream_t *bs = bitstream_open();
if (bs == NULL) {
free(*colormap);
*colormap = NULL;
free(indices_data);
for (y=0 ; y < png_height ; y++) {
free(png_image_data[y]);
}
free(png_image_data);
return NULL;
}
bitstream_input(bs, png_image_data[y], png_width);
for (x=0 ; x < png_width ; x++) {
indices_data[i] = bitstream_getbits(bs, bpp);
i++;
}
while (i % 4) { i++; } // 4byte alignment
bitstream_close(bs);
}
image_data = indices_data;
} else if (color_type == PNG_COLOR_TYPE_RGB) {
swf_xrgb_t *xrgb_list;
xrgb_list = malloc(sizeof(swf_xrgb_t) * png_width * png_height);
for (y=0 ; y < png_height ; y++) {
for (x=0 ; x < png_width ; x++) {
xrgb_list[x+y*png_width].red = png_image_data[y][3*x + 0];
xrgb_list[x+y*png_width].green = png_image_data[y][3*x + 1];
xrgb_list[x+y*png_width].blue = png_image_data[y][3*x + 2];
}
}
image_data = xrgb_list;
} else { // PNG_COLOR_TYPE_RGB_ALPHA
swf_argb_t *argb_list;
argb_list = malloc(sizeof(swf_argb_t) * png_width * png_height);
for (y=0 ; y < png_height ; y++) {
for (x=0 ; x < png_width ; x++) {
int alpha_value = png_image_data[y][4*x + 3];
argb_list[x+y*png_width].red = png_image_data[y][4*x + 0] * alpha_value / 0xff;
argb_list[x+y*png_width].green = png_image_data[y][4*x + 1] * alpha_value / 0xff;
argb_list[x+y*png_width].blue = png_image_data[y][4*x + 2] * alpha_value / 0xff;
argb_list[x+y*png_width].alpha = alpha_value;
}
}
image_data = argb_list;
}
for (y=0 ; y < png_height ; y++) {
free(png_image_data[y]);
}
free(png_image_data);
/*
* destruct
*/
png_destroy_read_struct((png_structpp) &png_ptr,
(png_infopp) &png_info_ptr, NULL);
return image_data;
}
int
swf_tag_place_input_detail(swf_tag_t *tag, struct swf_object_ *swf) {
swf_tag_place_detail_t *swf_tag_place = tag->detail;
unsigned char *data = tag->data;
unsigned long length = tag->length;
bitstream_t *bs;
int ret;
(void) swf;
if (swf_tag_place == NULL) {
fprintf(stderr, "ERROR: swf_tag_place_input_detail: swf_tag_place == NULL\n");
return 1;
}
swf_tag_place->character_id = 0; // undefined
bs = bitstream_open();
bitstream_input(bs, data, length);
if (tag->code == 4) { // PlaceObject
swf_tag_place->character_id = bitstream_getbytesLE(bs, 2);
swf_tag_place->depth = bitstream_getbytesLE(bs, 2);
ret = swf_matrix_parse(bs, &(swf_tag_place->matrix));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_input_detail: swf_tag_place->matrix parse failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return ret;
}
bitstream_align(bs);
if (bitstream_getbytepos(bs) < length) { // optional
ret = swf_cxform_parse(bs, &(swf_tag_place->color_transform));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_input_detail: swf_tag_place->color_transform parse failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return ret;
}
} else {
swf_tag_place->color_transform.has_add_terms = 0;
swf_tag_place->color_transform.has_mult_terms = 0;
swf_tag_place->color_transform.nbits = 0;
}
} else if (tag->code == 26) { // PlaceObject2
swf_tag_place->flag_has_clip_action = bitstream_getbit(bs);
swf_tag_place->flag_has_clip_depth = bitstream_getbit(bs);
swf_tag_place->flag_has_name = bitstream_getbit(bs);
swf_tag_place->flag_has_ratio = bitstream_getbit(bs);
swf_tag_place->flag_has_color_transform = bitstream_getbit(bs);
swf_tag_place->flag_has_matrix = bitstream_getbit(bs);
swf_tag_place->flag_has_character = bitstream_getbit(bs);
swf_tag_place->flag_has_move = bitstream_getbit(bs);
swf_tag_place->depth = bitstream_getbytesLE(bs, 2);
if (swf_tag_place->flag_has_character) {
swf_tag_place->character_id = bitstream_getbytesLE(bs, 2);
} else {
swf_tag_place->character_id = 0;
}
if (swf_tag_place->flag_has_matrix) {
ret = swf_matrix_parse(bs, &(swf_tag_place->matrix));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_input_detail: swf_tag_place->matrix parse failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return ret;
}
}
if (swf_tag_place->flag_has_color_transform) {
ret = swf_cxformwithalpha_parse(bs, &(swf_tag_place->color_transform_with_alpha));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_input_detail: swf_tag_place->color_transform parse failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return ret;
}
}
if (swf_tag_place->flag_has_ratio) {
swf_tag_place->ratio = bitstream_getbytesLE(bs, 2);
}
if (swf_tag_place->flag_has_name) {
swf_tag_place->name = (char *) bitstream_outputstring(bs);
}
if (swf_tag_place->flag_has_clip_depth) {
swf_tag_place->clip_depth = bitstream_getbytesLE(bs, 2);
}
// TODO: clip action data for SWF 5
} else {
bitstream_close(bs);
return 1; // unknown tag;
}
bitstream_close(bs);
return 0;
}
unsigned char *
swf_tag_place_output_detail(swf_tag_t *tag, unsigned long *length,
struct swf_object_ *swf) {
swf_tag_place_detail_t *swf_tag_place = (swf_tag_place_detail_t *) tag->detail;
bitstream_t *bs;
unsigned char *data;
int ret;
(void) swf;
*length = 0;
bs = bitstream_open();
if (tag->code == 4) { // PlaceObject
bitstream_putbytesLE(bs, swf_tag_place->character_id, 2);
bitstream_putbytesLE(bs, swf_tag_place->depth, 2);
ret = swf_matrix_build(bs, &(swf_tag_place->matrix));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_output_detail: swf_tag_place->matrix build failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return NULL;
}
if (swf_tag_place->color_transform.has_add_terms ||
swf_tag_place->color_transform.has_mult_terms) { // optional
ret = swf_cxform_build(bs, &(swf_tag_place->color_transform));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_output_detail: swf_tag_place->color_transform build failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return NULL;
}
}
} else if (tag->code == 26) { // PlaceObject2
bitstream_putbit(bs, swf_tag_place->flag_has_clip_action);
bitstream_putbit(bs, swf_tag_place->flag_has_clip_depth);
bitstream_putbit(bs, swf_tag_place->flag_has_name);
bitstream_putbit(bs, swf_tag_place->flag_has_ratio);
bitstream_putbit(bs, swf_tag_place->flag_has_color_transform);
bitstream_putbit(bs, swf_tag_place->flag_has_matrix);
bitstream_putbit(bs, swf_tag_place->flag_has_character);
bitstream_putbit(bs, swf_tag_place->flag_has_move);
bitstream_putbytesLE(bs, swf_tag_place->depth, 2);
if (swf_tag_place->flag_has_character) {
bitstream_putbytesLE(bs, swf_tag_place->character_id, 2);
}
if (swf_tag_place->flag_has_matrix) {
ret = swf_matrix_build(bs, &(swf_tag_place->matrix));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_output_detail: swf_tag_place->matrix build failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return NULL;
}
}
if (swf_tag_place->flag_has_color_transform) {
ret = swf_cxformwithalpha_build(bs, &(swf_tag_place->color_transform_with_alpha));
if (ret) {
fprintf(stderr, "ERROR: swf_tag_place_output_detail: swf_tag_place->color_transform build failed. character_id=%d\n", swf_tag_place->character_id);
bitstream_close(bs);
return NULL;
}
}
if (swf_tag_place->flag_has_ratio) {
bitstream_putbytesLE(bs, swf_tag_place->ratio, 2);
}
if (swf_tag_place->flag_has_name) {
bitstream_putstring(bs, (unsigned char *) swf_tag_place->name, strlen(swf_tag_place->name) + 1);
}
if (swf_tag_place->flag_has_clip_depth) {
bitstream_putbytesLE(bs, swf_tag_place->clip_depth, 2);
}
// TODO: clip action data for SWF 5
} else {
bitstream_close(bs);
return NULL; // unknown tag;
}
data = bitstream_steal(bs, length);
bitstream_close(bs);
return data;
}
int
swf_tag_jpeg3_input_detail(swf_tag_t *tag,
struct swf_object_ *swf) {
swf_tag_jpeg_detail_t *swf_tag_jpeg = NULL;
unsigned char *data = NULL;
unsigned long length;
unsigned long offset_to_alpha;
bitstream_t *bs = NULL;
unsigned long offset, alpha_data_len;
unsigned char *old_buff_ref = NULL, *new_buff = NULL;
unsigned long origsize;
int result;
(void) swf;
if (tag == NULL) {
fprintf(stderr, "swf_tag_jpeg3_input_detail: tag == NULL\n");
return 1;
}
swf_tag_jpeg = tag->detail;
data = tag->data;
length = tag->length;
if (swf_tag_jpeg == NULL) {
fprintf(stderr, "ERROR: swf_tag_jpeg3_input_detail: swf_tag_jpeg == NULL\n");
return 1;
}
bs = bitstream_open();
bitstream_input(bs, data, length);
swf_tag_jpeg->image_id = bitstream_getbytesLE(bs, 2);
offset_to_alpha = bitstream_getbytesLE(bs, 4);
swf_tag_jpeg->offset_to_alpha = offset_to_alpha;
swf_tag_jpeg->jpeg_data = bitstream_output_sub(bs, 2 + 4 , offset_to_alpha);
if (swf_tag_jpeg->jpeg_data == NULL) {
free(swf_tag_jpeg);
bitstream_close(bs);
fprintf(stderr, "swf_tag_jpeg3_create_detail: swf_tag_jpeg->jpeg_data\n");
return 1;
}
swf_tag_jpeg->jpeg_data_len = offset_to_alpha;
offset = 2 + 4 + offset_to_alpha;
alpha_data_len = length - offset;
// TODO: analyze jpeg and get width and height
origsize = 512 * alpha_data_len; // XXX greater than jpeg1,2
new_buff = malloc(origsize); // enough size?
old_buff_ref = bitstream_buffer(bs, offset);
result = uncompress(new_buff, &origsize, old_buff_ref, alpha_data_len);
if (result == Z_BUF_ERROR) { // XXX
origsize *= 2;
new_buff = realloc(new_buff, origsize); // enough size?
if (new_buff == NULL) {
free(swf_tag_jpeg);
bitstream_close(bs);
fprintf(stderr, "swf_tag_jpeg3_create_detail: realloc(%p, %lu) failed\n", new_buff, origsize);
return 1;
}
result = uncompress(new_buff, &origsize, old_buff_ref, alpha_data_len);
}
if (result == Z_OK) {
swf_tag_jpeg->alpha_data = realloc(new_buff, origsize);
swf_tag_jpeg->alpha_data_len = origsize;
} else {
if (result == Z_MEM_ERROR) {
fprintf(stderr, "swf_tag_jpeg3_create_detail: uncompress: Z_MEM_ERROR: can't malloc\n");
} else if (result == Z_BUF_ERROR) {
fprintf(stderr, "swf_tag_jpeg3_create_detail: uncompress: Z_BUF_ERROR: not enough buff size\n");
} else if (result == Z_DATA_ERROR) {
fprintf(stderr, "swf_tag_jpeg3_create_detail: uncompress: Z_DATA_ERROR: corrupted or imcomplete data\n");
} else {
fprintf(stderr, "swf_tag_jpeg3_create_detail: uncompress: failed by unknown reason (%d)\n", result);
}
free(new_buff);
}
bitstream_close(bs);
return 0;
}
int
swf_action_list_replace_strings(swf_action_list_t *action_list,
int *modified, y_keyvalue_t *kv) {
swf_action_t *action;
if (modified) {
*modified = 0;
}
for (action=action_list->head ; action ; action=action->next) {
if (action->action_id < 0x80) {
continue; // skip (no string)
}
switch(action->action_id) {
int type;
unsigned char *token;
int token_len;
bitstream_t *bs;
char *value;
int value_len;
int count;
int m = 0;
int i;
case 0x83: // Get URL
m = 0;
bs = bitstream_open();
token = action->action_data;
token_len = strlen((char *) token);
value = y_keyvalue_get(kv, (char *)token, token_len, &value_len);
if (value) {
bitstream_putstring(bs, (unsigned char *) value, value_len);
bitstream_putbyte(bs, '\0');
m = 1;
} else {
bitstream_putstring(bs, (unsigned char *) token, token_len);
bitstream_putbyte(bs, '\0');
}
token += token_len + 1;
token_len = strlen((char *) token);
value = y_keyvalue_get(kv, (char *)token, token_len, &value_len);
if (value) {
bitstream_putstring(bs, (unsigned char *)value, value_len);
bitstream_putbyte(bs, '\0');
m = 1;
} else {
bitstream_putstring(bs, (unsigned char *)token, token_len);
bitstream_putbyte(bs, '\0');
}
if (m) {
unsigned long length;
free(action->action_data);
action->action_data = bitstream_steal(bs, &length);
action->action_length = length;
if (modified) {
*modified = 1;
}
}
bitstream_close(bs);
break;
case 0x88: // ActionConstantPool
m = 0;
count = action->action_data[0] + 0x100 * action->action_data[1];
token = action->action_data + 2;
bs = bitstream_open();
bitstream_putbytesLE(bs, count, 2);
for (i = 0 ; i < count ; i++) {
token_len = strlen((char *) token);
value = y_keyvalue_get(kv, (char *)token, token_len, &value_len);
if (value) {
bitstream_putstring(bs, (unsigned char *)value, value_len);
bitstream_putbyte(bs, '\0');
m = 1;
} else {
bitstream_putstring(bs, (unsigned char *)token , token_len);
bitstream_putbyte(bs, '\0');
}
token += token_len + 1;
}
if (m) {
unsigned long length;
free(action->action_data);
action->action_data = bitstream_steal(bs, &length);
action->action_length = length;
if (modified) {
*modified = 1;
}
}
bitstream_close(bs);
break;
case 0x96: // Push Data
m = 0;
token = action->action_data;
bs = bitstream_open();
while (token < action->action_data + action->action_length) {
static const int action_value_type_size[] = {
-1, // 0: String
4, // 1: Float
0, // 2: NULL
0, // 3: Undefined
1, // 4: Register
1, // 5: Boolean
8, // 6: Double
4, // 7: Integer
1, // 8: Dictionary Lookup
2, // 9: Large Dictionary Lookup
};
type = token[0];
bitstream_putbyte(bs, type);
token += 1;
if (type == 0) { // String
token_len = strlen((char *) token);
value = y_keyvalue_get(kv, (char *)token, token_len, &value_len);
if (value) {
bitstream_putstring(bs, (unsigned char *)value, value_len);
bitstream_putbyte(bs, '\0');
m = 1;
} else {
bitstream_putstring(bs, (unsigned char *)token , token_len);
bitstream_putbyte(bs, '\0');
}
token += token_len + 1;
} else if (type < 10) { // else String
bitstream_putstring(bs, token, action_value_type_size[type]);
token += action_value_type_size[type];
} else {
fprintf(stderr, "swf_action_list_replace_strings: illegal type=%d\n", type);
bitstream_close(bs);
return 1; // FAILURE
}
}
if (m) {
unsigned long length;
free(action->action_data);
action->action_data = bitstream_steal(bs, &length);
action->action_length = length;
if (modified) {
*modified = 1;
}
}
bitstream_close(bs);
break;
}
}
return 0;
}
int main(int argc, char **argv) {
char *png_filename = NULL;
struct stat filestat;
FILE *fp = NULL;
my_png_buffer png_buff;
int is_png;
png_uint_32 png_width, png_height;
int bpp, color_type;
png_bytepp image_data;
png_uint_32 x, y;
png_color *palette = NULL;
int palette_num = 0;
png_bytep trans = NULL;
int num_trans;
png_color_16p trans_values = NULL;
int palette_dump_unit;
if (argc != 2) {
char *program_filename = argv[0];
fprintf(stderr, "Usage: %s <png_filename>\n", program_filename);
return EXIT_FAILURE;
}
png_filename = argv[1];
// printf("png_filename=%s\n", png_filename);
if(stat(png_filename, &filestat)) {
perror("stat pngfile");
return EXIT_FAILURE;
}
png_buff.data_len = filestat.st_size;
png_buff.data_offset = 0;
// printf("png_buff.data_len=%lu\n", png_buff.data_len);
fp = fopen(png_filename, "rb");
if (! fp) {
fprintf(stderr, "Can't open file(%s)\n", png_filename);
return EXIT_FAILURE;
}
png_buff.data = calloc(png_buff.data_len, 1);
fread(png_buff.data, 1, png_buff.data_len, fp);
fclose(fp);
is_png = png_check_sig((png_bytep)png_buff.data, 8);
if (! is_png) {
fprintf(stderr, "is not PNG!\n");
free(png_buff.data);
return EXIT_FAILURE;
}
png_structp png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, NULL,NULL,NULL);
if (! png_ptr) {
fprintf(stderr, "can't create read_struct\n");
free(png_buff.data);
return EXIT_FAILURE;
}
png_infop png_info_ptr = png_create_info_struct(png_ptr);
if (! png_info_ptr) {
fprintf(stderr, "can't create info_struct\n");
png_destroy_read_struct (&png_ptr, NULL, NULL);
free(png_buff.data);
return EXIT_FAILURE;
}
png_data_read(png_ptr, &png_buff);
png_read_info(png_ptr, png_info_ptr);
png_get_IHDR(png_ptr, png_info_ptr,
&png_width, &png_height, &bpp, &color_type,
NULL, NULL, NULL);
printf("(width, height)=(%lu,%lu) bpp=%d",
png_width, png_height, bpp);
printf(" color_type=%d", color_type);
switch(color_type) {
case PNG_COLOR_TYPE_GRAY:
printf("(GRAY)");
if (! png_get_tRNS(png_ptr, png_info_ptr, &trans, &num_trans,
&trans_values)) {
num_trans = 0;
}
printf(" num_trans=%d", num_trans);
break;
case PNG_COLOR_TYPE_GRAY_ALPHA:
printf("(GRAY_ALPHA)");
break;
case PNG_COLOR_TYPE_RGB:
printf("(RGB)");
if (png_get_PLTE(png_ptr, png_info_ptr, &palette, &palette_num)) {
printf(" palette_num=%d", palette_num);
}
if (! png_get_tRNS(png_ptr, png_info_ptr, &trans, &num_trans,
&trans_values)) {
num_trans = 0;
}
printf(" num_trans=%d", num_trans);
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
printf("(RGB_ALPHA)");
if (png_get_PLTE(png_ptr, png_info_ptr, &palette, &palette_num)) {
printf(" palette_num=%d", palette_num);
}
// if (png_get_valid(png_ptr, png_info_ptr, PNG_INFO_tRNS))
// png_set_tRNS_to_alpha(png_ptr);
break;
case PNG_COLOR_TYPE_PALETTE:
printf("(PALETTE)");
png_get_PLTE(png_ptr, png_info_ptr, &palette, &palette_num);
printf(" palette_num=%d", palette_num);
if (! png_get_tRNS(png_ptr, png_info_ptr, &trans, &num_trans,
&trans_values)) {
num_trans = 0;
}
printf(" num_trans=%d", num_trans);
break;
default:
printf("color_type(%d) not implement yet.\n",
color_type);
}
printf("\n");
/*
image
*/
image_data = (png_bytepp) malloc(png_height * sizeof(png_bytep));
for (y=0; y < png_height; y++) {
image_data[y] = (png_bytep) malloc(png_get_rowbytes(png_ptr, png_info_ptr));
}
png_read_image(png_ptr, image_data);
if (num_trans == 0) {
palette_dump_unit = 8;
} else {
palette_dump_unit = 4;
}
if (color_type == PNG_COLOR_TYPE_PALETTE) {
int i, j;
for (i = 0 ; i < palette_num ; i+=palette_dump_unit ) {
printf("[%03d]", i);
for (j = 0 ; (j < palette_dump_unit) && ((i+j) < palette_num) ; j++) {
if ((i+j) < num_trans) {
printf(" #%02x%02x%02x(%02x)",
palette[i+j].red,
palette[i+j].green,
palette[i+j].blue,
trans[i+j] & 0xff);
} else {
printf(" #%02x%02x%02x",
palette[i+j].red,
palette[i+j].green,
palette[i+j].blue);
}
}
printf("\n");
}
for (y=0; y < png_height; y++) {
unsigned char *linedata = image_data[y];
bitstream_t *bs = bitstream_open();
bitstream_input(bs, linedata, png_get_rowbytes(png_ptr, png_info_ptr));
printf("y=%lu: ", y);
for (x=0; x < png_width; x++) {
int colorindex = bitstream_getbits(bs, bpp);
printf("%02x ", colorindex);
}
bitstream_close(bs);
printf("\n");
}
} else {
for (y=0; y < png_height; y++) {
printf("y=%lu: ", y);
for (x=0; x < png_width; x++) {
switch(color_type) {
case PNG_COLOR_TYPE_GRAY:
printf("%02x ",
image_data[y][x]);
break;
case PNG_COLOR_TYPE_RGB:
printf("%02x%02x%02x ",
image_data[y][3*x],
image_data[y][3*x+1],
image_data[y][3*x+2]);
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
printf("%02x%02x%02x(%02x) ",
image_data[y][4*x],
image_data[y][4*x+1],
image_data[y][4*x+2],
image_data[y][4*x+3]);
break;
default:
break;
}
}
printf("\n");
}
}
/*
* finish
*/
for (y=0; y < png_height; y++) {
free(image_data[y]);
}
free(image_data);
png_destroy_read_struct(&png_ptr, &png_info_ptr, NULL);
free(png_buff.data);
return EXIT_SUCCESS;
}
