コード例 #1
0
/**
 * @brief This function is called to blit the next frame of an anim instance to the screen.
 * This is normally called by the anim_render_all() function.
 *
 * @param instance Pointer to animation instance
 * @param frametime	Time elapsed since last call, in seconds
 */
int anim_show_next_frame(anim_instance *instance, float frametime)
{
	int	bitmap_id, bitmap_flags=0, new_frame_num, frame_diff=0, i, n_frames=0,frame_save;
	float percent_through, time;
	vertex	image_vertex;
	int aabitmap = 0;
	int bpp = 16;

	Assert( instance != NULL );

	instance->time_elapsed += frametime;

	// Advance to the next frame, if we determine enough time has elapsed.
	if(instance->direction == ANIM_DIRECT_FORWARD)
		n_frames = instance->stop_at - instance->start_at + 1;
	else if(instance->direction == ANIM_DIRECT_REVERSE)
		n_frames = instance->start_at - instance->stop_at + 1;

	time = n_frames / i2fl(instance->parent->fps);

	percent_through = instance->time_elapsed / time;

	if(instance->direction == ANIM_DIRECT_FORWARD)
		new_frame_num = instance->start_at - 1 + fl2i(percent_through * n_frames + 0.5f);
	else
		new_frame_num = instance->start_at - 1 - fl2i(percent_through * n_frames + 0.5f);

	frame_save = instance->frame_num;

	// If framerate independent, use the new_frame_num... unless instance->skip_frames is
	// FALSE, then only advance a maximum of one frame (this is needed since some big animations
	// should just play slower rather than taking the hit of decompressing multiple frames and
	// creating an even greater slowdown	
	if (instance->framerate_independent) {
		if(instance->direction == ANIM_DIRECT_FORWARD){
			if ( new_frame_num > instance->last_frame_num) {
				if ( instance->skip_frames )
					instance->frame_num = new_frame_num;
				else
					instance->frame_num++;
			}
		} else if(instance->direction == ANIM_DIRECT_REVERSE){
			if( new_frame_num < instance->last_frame_num) {
				if ( instance->skip_frames )
					instance->frame_num = new_frame_num;
				else
					instance->frame_num--;
			}
		}
	}
	else {			
		if(instance->direction == ANIM_DIRECT_FORWARD){
			if ( new_frame_num > instance->last_frame_num) {
				instance->frame_num++;
			}
		} else if(instance->direction == ANIM_DIRECT_REVERSE){
			if ( new_frame_num < instance->last_frame_num) {
				instance->frame_num--;
			}
		}			
	}

	if(instance->direction == ANIM_DIRECT_FORWARD){
		if ( instance->frame_num < instance->start_at ) {
			instance->frame_num = instance->start_at;
		}	
	} else if(instance->direction == ANIM_DIRECT_REVERSE){
		if ( instance->frame_num > instance->start_at ) {
			instance->frame_num = instance->start_at;
		}	
	}

	if ( instance->stop_now == TRUE ) {
		return -1;
	}

	// If past the last frame, clamp to the last frame and then set the stop_now flag in the
	// anim instance.  The next iteration, the animation will stop.
	if(instance->direction == ANIM_DIRECT_FORWARD){
		if (instance->frame_num >= instance->stop_at ) {
			if (instance->looped) {										// looped animations
				instance->frame_num = instance->stop_at;
				instance->time_elapsed = 0.0f;
			} else if(instance->ping_pong) {							// pingponged animations
				instance->frame_num = instance->stop_at;
				anim_reverse_direction(instance);
			} else {															// one-shot animations
				instance->frame_num = instance->stop_at;
				instance->last_frame_num = instance->frame_num;
				instance->stop_now = TRUE;
			}
		}
	} else if(instance->direction == ANIM_DIRECT_REVERSE){
		if (instance->frame_num <= instance->stop_at ) {
			if (instance->looped) {										// looped animations
				instance->frame_num = instance->stop_at;
				instance->time_elapsed = 0.0f;
			} else if(instance->ping_pong) {							// pingponged animations
				instance->frame_num = instance->stop_at;
				anim_reverse_direction(instance);
			} else {															// one-shot animations
				instance->frame_num = instance->stop_at+1;
				instance->last_frame_num = instance->frame_num;
				instance->stop_now = TRUE;
			}
		}
	}

	if(instance->direction == ANIM_DIRECT_FORWARD){
		if( instance->last_frame_num >= instance->start_at ) {
			frame_diff = instance->frame_num - instance->last_frame_num;		
		} else {
			frame_diff = 1;
		}
	} else if(instance->direction == ANIM_DIRECT_REVERSE){
		if( instance->last_frame_num <= instance->start_at ) {
			frame_diff = instance->last_frame_num - instance->frame_num;
		} else {
			frame_diff = 1;
		}
	}		
	Assert(frame_diff >= 0);
	Assert( instance->frame_num >= 0 && instance->frame_num < instance->parent->total_frames );

	// if the anim is paused, ignore all the above changes and still display this frame
	if(instance->paused || Anim_paused){
		instance->frame_num = frame_save;
		instance->time_elapsed -= frametime;
		frame_diff = 0;
	}

	if (instance->parent->flags & ANF_XPARENT){
		bitmap_flags = 0;
	} 
	bpp = 16;
	if(instance->aa_color != NULL){
		bitmap_flags |= BMP_AABITMAP;
		aabitmap = 1;
		bpp = 8;
	}	

	if ( frame_diff > 0 ) {
		instance->last_frame_num = instance->frame_num;		

		t1 = timer_get_fixed_seconds();
		for ( i = 0; i < frame_diff; i++ ) {
			anim_check_for_palette_change(instance);			

			// if we're playing backwards, every frame must be a keyframe and we set the data ptr here
			if(instance->direction == ANIM_DIRECT_REVERSE){
				if ( anim_instance_is_streamed(instance) ) {
					instance->file_offset = instance->parent->file_offset + instance->parent->keys[instance->frame_num-1].offset;
				} else {
					instance->data = instance->parent->data + instance->parent->keys[instance->frame_num-1].offset;
				}
			}

			ubyte *temp = NULL;
			int temp_file_offset = -1;			

			// if we're using bitmap polys
			BM_SELECT_TEX_FORMAT();

			if ( anim_instance_is_streamed(instance) ) {
				if ( instance->xlate_pal ){
					temp_file_offset = unpack_frame_from_file(instance, instance->frame, instance->parent->width*instance->parent->height, instance->parent->palette_translation, aabitmap, bpp);
				} else {
					temp_file_offset = unpack_frame_from_file(instance, instance->frame, instance->parent->width*instance->parent->height, NULL, aabitmap, bpp);
				}
			} else {
				if ( instance->xlate_pal ){
					temp = unpack_frame(instance, instance->data, instance->frame, instance->parent->width*instance->parent->height, instance->parent->palette_translation, aabitmap, bpp);
				} else {
					temp = unpack_frame(instance, instance->data, instance->frame, instance->parent->width*instance->parent->height, NULL, aabitmap, bpp);
				}
			}

			// always go back to screen format
			BM_SELECT_SCREEN_FORMAT();

			// see if we had an error during decode (corrupted anim stream)
			if ( (temp == NULL) && (temp_file_offset < 0) ) {
				mprintf(("ANI: Fatal ERROR at frame %i!!  Aborting playback of \"%s\"...\n", instance->frame_num, instance->parent->name));

				// return -1 to end all playing of this anim instanc
				return -1;
			}

			if(instance->direction == ANIM_DIRECT_FORWARD){
				if ( anim_instance_is_streamed(instance) ) {
					instance->file_offset = temp_file_offset;
				} else {
					instance->data = temp;
				}
			}			
		}
		t2 = timer_get_fixed_seconds();
	}
	else {
		t2=t1=0;
	}

	// this only happens when the anim is being looped, we need to reset the last_frame_num
	if ( (instance->time_elapsed == 0) && (instance->looped) ) {
		instance->last_frame_num = -1;
		instance->frame_num = -1;
		instance->data = instance->parent->data;
		instance->file_offset = instance->parent->file_offset;
		instance->loop_count++;
	}

	t1 = timer_get_fixed_seconds();
	if ( frame_diff == 0 && instance->last_bitmap != -1 ) {
		bitmap_id = instance->last_bitmap;
	}
	else {
		if ( instance->last_bitmap != -1 ){
			bm_release(instance->last_bitmap);
		}
		bitmap_id = bm_create(bpp, instance->parent->width, instance->parent->height, instance->frame, bitmap_flags);
	}
	
	if ( bitmap_id == -1 ) {
		// anim has finsished playing, free the instance frame data
		anim_release_render_instance(instance);	
		return -1;

		// NOTE: there is no need to free the instance, since it was pre-allocated as 
		//       part of the anim_free_list
	}
	else {
		gr_set_bitmap(bitmap_id);
		
		// determine x,y to display the bitmap at
		if ( instance->world_pos == NULL ) {
			int old_max_w_unscaled = gr_screen.max_w_unscaled;
			int old_max_h_unscaled = gr_screen.max_h_unscaled;
			int old_max_w_unscaled_zoomed = gr_screen.max_w_unscaled_zoomed;
			int old_max_h_unscaled_zoomed = gr_screen.max_h_unscaled_zoomed;
			gr_set_screen_scale(instance->base_w, instance->base_h);
			gr_set_clip(0, 0, instance->base_w, instance->base_h, GR_RESIZE_MENU);
			if ( instance->aa_color == NULL ) {
				gr_bitmap(instance->x, instance->y, GR_RESIZE_MENU_NO_OFFSET);
			}
			else {
				gr_set_color_fast( (color*)instance->aa_color );
				gr_aabitmap(instance->x, instance->y, GR_RESIZE_MENU_NO_OFFSET);
			}
			gr_set_screen_scale(old_max_w_unscaled, old_max_h_unscaled, old_max_w_unscaled_zoomed, old_max_h_unscaled_zoomed);
			gr_reset_clip();
		}
		else {
			g3_rotate_vertex(&image_vertex,instance->world_pos);
			Assert(instance->radius != 0.0f);
			//g3_draw_bitmap(&image_vertex, 0, instance->radius*1.5f, TMAP_FLAG_TEXTURED | TMAP_HTL_2D);
			material mat_params;
			material_set_unlit(&mat_params, bitmap_id, 1.0f, false, false);
			g3_render_rect_screen_aligned_2d(&mat_params, &image_vertex, 0, instance->radius*1.5f);
		}
									  
		instance->last_bitmap = bitmap_id;
	}

	t2 = timer_get_fixed_seconds();

	return 0;
}
コード例 #2
0
ファイル: grstub.cpp プロジェクト: svn2github/FS2Open_Trunk
int gr_stub_bm_lock(char *filename, int handle, int bitmapnum, ubyte bpp, ubyte flags)
{
	ubyte c_type = BM_TYPE_NONE;
	ubyte true_bpp;

	bitmap_entry *be = &bm_bitmaps[bitmapnum];
	bitmap *bmp = &be->bm;

	true_bpp = 8;

	// don't do a bpp check here since it could be different in OGL - taylor
	if ( (bmp->data == 0) ) {
		Assert(be->ref_count == 1);

		if ( be->type != BM_TYPE_USER ) {
			if ( bmp->data == 0 ) {
				nprintf (("BmpMan","Loading %s for the first time.\n", be->filename));
			}
		}

		if ( !Bm_paging )	{
			if ( be->type != BM_TYPE_USER ) {							
				nprintf(( "Paging", "Loading %s (%dx%dx%d)\n", be->filename, bmp->w, bmp->h, true_bpp ));
			}
		}

		// select proper format
		if(flags & BMP_AABITMAP){
			BM_SELECT_ALPHA_TEX_FORMAT();
		} else if(flags & BMP_TEX_ANY){
			BM_SELECT_TEX_FORMAT();					
		} else {
			BM_SELECT_SCREEN_FORMAT();
		}

		// make sure we use the real graphic type for EFFs
		if ( be->type == BM_TYPE_EFF ) {
			c_type = be->info.ani.eff.type;
		} else {
			c_type = be->type;
		}

		switch ( c_type ) {
			case BM_TYPE_PCX:
				bm_lock_pcx( handle, bitmapnum, be, bmp, true_bpp, flags );
				break;

			case BM_TYPE_ANI:
				bm_lock_ani( handle, bitmapnum, be, bmp, true_bpp, flags );
				break;

			case BM_TYPE_TGA:
				bm_lock_tga( handle, bitmapnum, be, bmp, true_bpp, flags );
				break;

			case BM_TYPE_JPG:
				bm_lock_jpg( handle, bitmapnum, be, bmp, bmp->true_bpp, flags );
				break;

			case BM_TYPE_DDS:
			case BM_TYPE_DXT1:
			case BM_TYPE_DXT3:
			case BM_TYPE_DXT5:
			case BM_TYPE_CUBEMAP_DDS:
			case BM_TYPE_CUBEMAP_DXT1:
			case BM_TYPE_CUBEMAP_DXT3:
			case BM_TYPE_CUBEMAP_DXT5:
				bm_lock_dds( handle, bitmapnum, be, bmp, true_bpp, flags );
				break;

			case BM_TYPE_USER:	
				bm_lock_user( handle, bitmapnum, be, bmp, true_bpp, flags );
				break;

			default:
				Warning(LOCATION, "Unsupported type in bm_lock -- %d\n", c_type );
				return -1;
		}		

		// always go back to screen format
		BM_SELECT_SCREEN_FORMAT();
	}

	// make sure we actually did something
	if ( !(bmp->data) ) {
		// crap, bail...
		return -1;
	}

	return 0;
}
コード例 #3
0
ファイル: generic.cpp プロジェクト: joshuasb/fs2open
void generic_render_ani_stream(generic_anim *ga)
{
	int i;
	int bpp = ANI_BPP_CHECK;
	if(ga->use_hud_color)
		bpp = 8;
	#ifdef TIMER
		int start_time = timer_get_fixed_seconds();
	#endif

	if(ga->current_frame == ga->previous_frame)
		return;

	#ifdef TIMER
		mprintf(("=========================\n"));
		mprintf(("frame: %d\n", ga->current_frame));
	#endif

	anim_check_for_palette_change(ga->ani.instance);
	// if we're using bitmap polys
	BM_SELECT_TEX_FORMAT();
	if(ga->direction & GENERIC_ANIM_DIRECTION_BACKWARDS) {
		//grab the keyframe - every frame is a keyframe for ANI
		if(ga->ani.animation->flags & ANF_STREAMED) {
			ga->ani.instance->file_offset = ga->ani.animation->file_offset + ga->ani.animation->keys[ga->current_frame].offset;
		} else {
			ga->ani.instance->data = ga->ani.animation->data + ga->ani.animation->keys[ga->current_frame].offset;
		}
		if(ga->ani.animation->flags & ANF_STREAMED) {
			ga->ani.instance->file_offset = unpack_frame_from_file(ga->ani.instance, ga->buffer, ga->width * ga->height, (ga->ani.instance->xlate_pal) ? ga->ani.animation->palette_translation : NULL, (bpp==8)?1:0, bpp);
		}
		else {
			ga->ani.instance->data = unpack_frame(ga->ani.instance, ga->ani.instance->data, ga->buffer, ga->width * ga->height, (ga->ani.instance->xlate_pal) ? ga->ani.animation->palette_translation : NULL, (bpp==8)?1:0, bpp);
		}
	}
	else {
		//looping back
		if((ga->current_frame == 0) || (ga->current_frame < ga->previous_frame)) {
			//go back to keyframe if there is one
			if(ga->keyframe && (ga->current_frame > 0)) {
				if(ga->ani.animation->flags & ANF_STREAMED) {
					ga->ani.instance->file_offset = ga->ani.animation->file_offset + ga->keyoffset;
				} else {
					ga->ani.instance->data = ga->ani.animation->data + ga->keyoffset;
				}
				ga->previous_frame = ga->keyframe - 1;
			}
			//go back to the start
			else {
				ga->ani.instance->file_offset = ga->ani.animation->file_offset;
				ga->ani.instance->data = ga->ani.animation->data;
				ga->previous_frame = -1;
			}
		}
		#ifdef TIMER
				mprintf(("proc: %d\n", timer_get_fixed_seconds() - start_time));
				mprintf(("previous frame: %d\n", ga->previous_frame));
		#endif
		for(i = ga->previous_frame + 1; i <= ga->current_frame; i++) {
			if(ga->ani.animation->flags & ANF_STREAMED) {
				ga->ani.instance->file_offset = unpack_frame_from_file(ga->ani.instance, ga->buffer, ga->width * ga->height, (ga->ani.instance->xlate_pal) ? ga->ani.animation->palette_translation : NULL, (bpp==8)?1:0, bpp);
			}
			else {
				ga->ani.instance->data = unpack_frame(ga->ani.instance, ga->ani.instance->data, ga->buffer, ga->width * ga->height, (ga->ani.instance->xlate_pal) ? ga->ani.animation->palette_translation : NULL, (bpp==8)?1:0, bpp);
			}
		}
	}
	// always go back to screen format
	BM_SELECT_SCREEN_FORMAT();
	//we need to use this because performance is worse if we flush the gfx card buffer
	
	gr_update_texture(ga->bitmap_id, bpp, ga->buffer, ga->width, ga->height);

	//in case we want to check that the frame is actually changing
	//mprintf(("frame crc = %08X\n", cf_add_chksum_long(0, ga->buffer, ga->width * ga->height * (bpp >> 3))));
	ga->ani.instance->last_bitmap = ga->bitmap_id;

	#ifdef TIMER
		mprintf(("end: %d\n", timer_get_fixed_seconds() - start_time));
		mprintf(("=========================\n"));
	#endif
}