swfdec_button.c

来自「Flush解码源程序」· C语言 代码 · 共 195 行

#include "swfdec_internal.h"

void swfdec_button_free(SwfdecObject *object)
{
	SwfdecButton *button = object->priv;
	int i;

	for(i=0;i<3;i++){
		if(button->state[i]){
			swfdec_spriteseg_free(button->state[i]);
		}
	}
	g_free(button);
}

SwfdecLayer *swfdec_button_prerender(SwfdecDecoder *s,SwfdecSpriteSeg *seg,
	SwfdecObject *object, SwfdecLayer *oldlayer)
{
	SwfdecButton *button = object->priv;
	SwfdecObject *obj;
	SwfdecLayer *layer;
	SwfdecSpriteSeg *tmpseg;

	if(oldlayer && oldlayer->seg == seg)return oldlayer;

	layer = swfdec_layer_new();
	layer->seg = seg;

	layer->rect.x0 = 0;
	layer->rect.x1 = 0;
	layer->rect.y0 = 0;
	layer->rect.y1 = 0;

	art_affine_multiply(layer->transform, seg->transform, s->transform);
	if(button->state[0]){
		SwfdecLayer *child_layer = NULL;
		obj = swfdec_object_get(s,button->state[0]->id);
		if(!obj)return NULL;

		tmpseg = swfdec_spriteseg_dup(button->state[0]);
		art_affine_multiply(tmpseg->transform,
			button->state[0]->transform, seg->transform);

		child_layer = swfdec_spriteseg_prerender(s,tmpseg,NULL);

		if(child_layer){
			layer->sublayers = g_list_append(layer->sublayers,
				child_layer);

			art_irect_union_to_masked(&layer->rect,
				&child_layer->rect, &s->irect);
		}
		swfdec_spriteseg_free(tmpseg);
	}

	return layer;
}

void swfdec_button_render(SwfdecDecoder *s,SwfdecLayer *layer,
	SwfdecObject *object)
{
	int i;
	SwfdecLayerVec *layervec;

	for(i=0;i<layer->fills->len;i++){
		layervec = &g_array_index(layer->fills, SwfdecLayerVec, i);
		swfdec_layervec_render(s, layervec);
	}
	for(i=0;i<layer->lines->len;i++){
		layervec = &g_array_index(layer->lines, SwfdecLayerVec, i);
		swfdec_layervec_render(s, layervec);
	}
}

int tag_func_define_button_2(SwfdecDecoder *s)
{
	bits_t *bits = &s->b;
	int id;
	int flags;
	int offset;
	int condition;
	SwfdecObject *object;
	double trans[6];
	double color_add[4], color_mult[4];
	SwfdecButton *button;
	unsigned char *endptr;

	endptr = bits->ptr + s->tag_len;

	id = get_u16(bits);
	object = swfdec_object_new(s,id);

	button = g_new0(SwfdecButton,1);
	object->type = SWF_OBJECT_BUTTON;
	object->priv = button;

	SWF_DEBUG(0,"  ID: %d\n", object->id);

	flags = get_u8(bits);
	offset = get_u16(bits);

	SWF_DEBUG(0,"  flags = %d\n",flags);
	SWF_DEBUG(0,"  offset = %d\n",offset);

	while(peek_u8(bits)){
		int reserved;
		int hit_test;
		int down;
		int over;
		int up;
		int character;
		int layer;

		syncbits(bits);
		reserved = getbits(bits,4);
		hit_test = getbit(bits);
		down = getbit(bits);
		over = getbit(bits);
		up = getbit(bits);
		character = get_u16(bits);
		layer = get_u16(bits);

		SWF_DEBUG(0,"  reserved = %d\n",reserved);
		if(reserved){
			SWF_DEBUG(4,"reserved is supposed to be 0\n");
		}
		SWF_DEBUG(0,"  hit_test = %d\n",hit_test);
		SWF_DEBUG(0,"  down = %d\n",down);
		SWF_DEBUG(0,"  over = %d\n",over);
		SWF_DEBUG(0,"  up = %d\n",up);
		SWF_DEBUG(0,"  character = %d\n",character);
		SWF_DEBUG(0,"  layer = %d\n",layer);

		SWF_DEBUG(0,"bits->ptr %p\n",bits->ptr);

		//get_art_matrix(bits, trans);
		get_art_matrix(bits, trans);
		syncbits(bits);
		SWF_DEBUG(0,"bits->ptr %p\n",bits->ptr);
		get_art_color_transform(bits, color_mult, color_add);
		syncbits(bits);

		SWF_DEBUG(0,"bits->ptr %p\n",bits->ptr);

		if(up){
			if(button->state[0]){
				SWF_DEBUG(4,"button->state already set\n");
				swfdec_spriteseg_free(button->state[0]);
			}
			button->state[0] = swfdec_spriteseg_new();
			button->state[0]->id = character;
			art_affine_copy(button->state[0]->transform,trans);
			memcpy(button->state[0]->color_mult,color_mult,4*sizeof(double));
			memcpy(button->state[0]->color_add,color_add,4*sizeof(double));
		}
		if(over){
			if(button->state[1]){
				SWF_DEBUG(4,"button->state already set\n");
				swfdec_spriteseg_free(button->state[1]);
			}
			button->state[1] = swfdec_spriteseg_new();
			button->state[1]->id = character;
			art_affine_copy(button->state[1]->transform,trans);
			memcpy(button->state[1]->color_mult,color_mult,4*sizeof(double));
			memcpy(button->state[1]->color_add,color_add,4*sizeof(double));
		}
		if(down){
			if(button->state[2]){
				SWF_DEBUG(4,"button->state already set\n");
				swfdec_spriteseg_free(button->state[2]);
			}
			button->state[2] = swfdec_spriteseg_new();
			button->state[2]->id = character;
			art_affine_copy(button->state[2]->transform,trans);
			memcpy(button->state[2]->color_mult,color_mult,4*sizeof(double));
			memcpy(button->state[2]->color_add,color_add,4*sizeof(double));
		}

	}
	get_u8(bits);

	while(offset!=0){
		offset = get_u16(bits);
		condition = get_u16(bits);

		SWF_DEBUG(0,"  offset = %d\n",offset);
		SWF_DEBUG(0,"  condition = 0x%04x\n",condition);

		get_actions(s,bits);
	}

	return SWF_OK;
}