1306 lines
43 KiB
C
1306 lines
43 KiB
C
/**
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* libpsd - Photoshop file formats (*.psd) decode library
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* Copyright (C) 2004-2007 Graphest Software.
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*
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* libpsd is the legal property of its developers, whose names are too numerous
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* to list here. Please refer to the COPYRIGHT file distributed with this
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* source distribution.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: blend.c, created by Patrick in 2005.06.01, libpsd@graphest.com Exp $
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*/
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#include <stdlib.h>
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#include <math.h>
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#include "libpsd.h"
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#include "psd_config.h"
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#include "psd_system.h"
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#include "psd_color.h"
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#include "psd_rect.h"
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#include "psd_blend.h"
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#include "psd_math.h"
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extern psd_bool psd_adjustment_layer_blend(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect);
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extern psd_bool psd_layer_effects_blend_background(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect);
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extern psd_bool psd_layer_effects_blend_foreground(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect);
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#ifdef PSD_SUPPORT_LAYER_BLEND
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psd_static psd_status psd_build_rand_data(psd_context * context)
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{
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psd_int i;
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psd_uchar * rand_data;
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context->rand_data = (psd_uchar *)psd_malloc(context->width * context->height);
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if(context->rand_data == NULL)
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return psd_status_malloc_failed;
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srand(0);
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rand_data = context->rand_data;
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for(i = context->width * context->height; i --; )
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{
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*rand_data = rand() & 0xFF;
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rand_data ++;
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}
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return psd_status_done;
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}
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psd_static void psd_image_clear_rect(psd_context * context, psd_rect * dst_rect)
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{
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psd_int i, width;
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psd_argb_color * dst_color;
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dst_color = context->blending_image_data + dst_rect->top * context->width + dst_rect->left;
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width = psd_rect_width(dst_rect);
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for(i = dst_rect->top; i < dst_rect->bottom; i ++)
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{
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psd_color_memset(dst_color, psd_color_clear, width);
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dst_color += context->width;
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}
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}
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psd_bool psd_layer_check_restricted(psd_context * context, psd_layer_record * layer)
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{
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psd_int i;
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if(context->color_mode != psd_color_mode_rgb)
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return psd_false;
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if(layer->knockout != 0)
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return psd_true;
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for(i = 0; i < layer->number_of_channels; i ++)
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{
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if(layer->channel_info[i].restricted == psd_true)
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return psd_true;
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}
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if(layer->layer_blending_ranges.gray_black_src != 0 ||
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layer->layer_blending_ranges.gray_white_src != 65535 ||
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layer->layer_blending_ranges.gray_black_dst != 0 ||
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layer->layer_blending_ranges.gray_white_dst != 65535)
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return psd_true;
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for(i = 0; i < layer->layer_blending_ranges.number_of_blending_channels; i ++)
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{
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if(layer->layer_blending_ranges.channel_black_src[i] != 0 ||
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layer->layer_blending_ranges.channel_white_src[i] != 65535 ||
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layer->layer_blending_ranges.channel_black_dst[i] != 0 ||
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layer->layer_blending_ranges.channel_white_dst[i] != 65535)
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return psd_true;
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}
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return psd_false;
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}
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void psd_layer_blend_normal(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect)
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{
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psd_argb_color * dst_data, * src_data, dst_color, src_color;
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psd_int i, j, width, height;
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psd_int opacity, mix_alpha;
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psd_int dst_red, dst_green, dst_blue, dst_alpha, src_alpha;
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psd_color_component * mask_data = NULL, mask_color, default_mask_color;
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psd_int mask_left, mask_right, dst_left;
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psd_layer_mask_info * layer_mask_info = &layer->layer_mask_info;
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width = psd_rect_width(dst_rect);
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height = psd_rect_height(dst_rect);
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opacity = layer->opacity * layer->fill_opacity / 255;
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if(layer->group_layer != NULL)
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opacity = opacity * layer->group_layer->opacity / 255;
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if(layer_mask_info->disabled == psd_false)
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default_mask_color = layer_mask_info->default_color;
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else
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default_mask_color = 255;
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mask_left = layer_mask_info->left;
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mask_right = layer_mask_info->right;
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dst_left = dst_rect->left;
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if(opacity == 255)
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{
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for(i = 0; i < height; i ++)
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{
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dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
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dst_rect->left;
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src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
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(dst_rect->left - layer->left);
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if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
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i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
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{
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mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
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PSD_MAX(0, dst_rect->left - layer_mask_info->left);
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}
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else
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{
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mask_data = NULL;
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}
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for(j = 0; j < width; j ++, dst_data ++, src_data ++)
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{
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src_color = *src_data;
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src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
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{
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mask_color = *mask_data;
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mask_data ++;
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switch(mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * mask_color >> 8;
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break;
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}
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}
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else if(default_mask_color != 255)
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{
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switch(default_mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * default_mask_color >> 8;
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break;
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}
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}
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switch(src_alpha)
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{
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case 0:
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break;
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case 255:
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*dst_data = src_color;
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break;
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default:
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dst_color = *dst_data;
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dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
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dst_red = PSD_GET_RED_COMPONENT(dst_color);
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dst_green = PSD_GET_GREEN_COMPONENT(dst_color);
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dst_blue = PSD_GET_BLUE_COMPONENT(dst_color);
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switch(dst_alpha)
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{
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case 0:
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*dst_data = src_color;
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break;
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case 255:
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dst_red = ((dst_red << 8) + (PSD_GET_RED_COMPONENT(src_color) - dst_red) * src_alpha) >> 8;
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dst_green = ((dst_green << 8) + (PSD_GET_GREEN_COMPONENT(src_color) - dst_green) * src_alpha) >> 8;
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dst_blue = ((dst_blue << 8) + (PSD_GET_BLUE_COMPONENT(src_color) - dst_blue) * src_alpha) >> 8;
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*dst_data = PSD_RGB_TO_COLOR(dst_red, dst_green, dst_blue);
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break;
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default:
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mix_alpha = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
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dst_alpha = dst_alpha + ((256 - dst_alpha) * src_alpha >> 8);
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dst_red = ((dst_red << 8) + (PSD_GET_RED_COMPONENT(src_color) - dst_red) * mix_alpha) >> 8;
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dst_green = ((dst_green << 8) + (PSD_GET_GREEN_COMPONENT(src_color) - dst_green) * mix_alpha) >> 8;
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dst_blue = ((dst_blue << 8) + (PSD_GET_BLUE_COMPONENT(src_color) - dst_blue) * mix_alpha) >> 8;
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*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
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break;
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}
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break;
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}
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}
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}
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}
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else
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{
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for(i = 0; i < height; i ++)
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{
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dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
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dst_rect->left;
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src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
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(dst_rect->left - layer->left);
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if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
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i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
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{
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mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
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PSD_MAX(0, dst_rect->left - layer_mask_info->left);
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}
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else
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{
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mask_data = NULL;
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}
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for(j = 0; j < width; j ++, dst_data ++, src_data ++)
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{
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src_color = *src_data;
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src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
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{
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mask_color = *mask_data;
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mask_data ++;
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switch(mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * mask_color >> 8;
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break;
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}
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}
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else if(default_mask_color != 255)
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{
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switch(default_mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * default_mask_color >> 8;
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break;
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}
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}
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switch(src_alpha)
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{
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case 0:
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break;
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default:
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src_alpha = src_alpha * opacity >> 8;
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dst_color = *dst_data;
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dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
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dst_red = PSD_GET_RED_COMPONENT(dst_color);
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dst_green = PSD_GET_GREEN_COMPONENT(dst_color);
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dst_blue = PSD_GET_BLUE_COMPONENT(dst_color);
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switch(dst_alpha)
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{
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case 0:
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*dst_data = (src_alpha << 24) | (src_color & 0x00FFFFFF);
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break;
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case 255:
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dst_red = ((dst_red << 8) + (PSD_GET_RED_COMPONENT(src_color) - dst_red) * src_alpha) >> 8;
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dst_green = ((dst_green << 8) + (PSD_GET_GREEN_COMPONENT(src_color) - dst_green) * src_alpha) >> 8;
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dst_blue = ((dst_blue << 8) + (PSD_GET_BLUE_COMPONENT(src_color) - dst_blue) * src_alpha) >> 8;
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*dst_data = PSD_RGB_TO_COLOR(dst_red, dst_green, dst_blue);
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break;
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default:
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mix_alpha = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
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dst_alpha = dst_alpha + ((256 - dst_alpha) * src_alpha >> 8);
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dst_red = ((dst_red << 8) + (PSD_GET_RED_COMPONENT(src_color) - dst_red) * mix_alpha) >> 8;
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dst_green = ((dst_green << 8) + (PSD_GET_GREEN_COMPONENT(src_color) - dst_green) * mix_alpha) >> 8;
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dst_blue = ((dst_blue << 8) + (PSD_GET_BLUE_COMPONENT(src_color) - dst_blue) * mix_alpha) >> 8;
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*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
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break;
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}
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break;
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}
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}
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}
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}
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}
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void psd_layer_blend(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect)
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{
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psd_argb_color * dst_data, * src_data, dst_color, src_color;
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psd_int i, j, width, height;
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psd_int opacity, mix_alpha;
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psd_int dst_red, dst_green, dst_blue, dst_alpha, src_red, src_green, src_blue, src_alpha;
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psd_int dst_hue, dst_saturation, dst_brightness, src_hue, src_saturation, src_brightness;
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psd_blend_mode blend_mode;
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psd_color_component * mask_data = NULL, mask_color, default_mask_color;
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psd_int mask_left, mask_right, dst_left;
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psd_layer_mask_info * layer_mask_info = &layer->layer_mask_info;
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psd_uchar * rand_data;
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width = psd_rect_width(dst_rect);
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height = psd_rect_height(dst_rect);
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opacity = layer->opacity * layer->fill_opacity / 255;
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if(layer->group_layer != NULL)
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opacity = opacity * layer->group_layer->opacity / 255;
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if(layer->group_layer != NULL && layer->group_layer->divider_blend_mode != psd_blend_mode_pass_through)
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blend_mode = layer->group_layer->divider_blend_mode;
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else
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blend_mode = layer->blend_mode;
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if(layer_mask_info->disabled == psd_false)
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default_mask_color = layer_mask_info->default_color;
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else
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default_mask_color = 255;
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mask_left = layer_mask_info->left;
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mask_right = layer_mask_info->right;
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dst_left = dst_rect->left;
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if(blend_mode == psd_blend_mode_dissolve)
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{
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for(i = 0; i < height; i ++)
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{
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dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
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dst_rect->left;
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src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
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(dst_rect->left - layer->left);
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rand_data = context->rand_data + (i + dst_rect->top) * context->width + dst_rect->left;
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if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
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i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
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{
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mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
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PSD_MAX(0, dst_rect->left - layer_mask_info->left);
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}
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else
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{
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mask_data = NULL;
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}
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for(j = 0; j < width; j ++, dst_data ++, src_data ++, rand_data ++)
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{
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src_color = *src_data;
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src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
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{
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mask_color = *mask_data;
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mask_data ++;
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switch(mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * mask_color >> 8;
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break;
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}
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}
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else if(default_mask_color != 255)
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{
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switch(default_mask_color)
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{
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case 0:
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continue;
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case 255:
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break;
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default:
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src_alpha = src_alpha * default_mask_color >> 8;
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break;
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}
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}
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switch(src_alpha)
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{
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case 0:
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break;
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case 255:
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*dst_data = (src_color & 0x00FFFFFF) | 0xFF000000;
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break;
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default:
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dst_alpha = PSD_GET_ALPHA_COMPONENT(*dst_data);
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mix_alpha = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
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if(*rand_data <= mix_alpha)
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*dst_data = (src_color & 0x00FFFFFF) | 0xFF000000;
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break;
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}
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}
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}
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return;
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}
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for(i = 0; i < height; i ++)
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{
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dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
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dst_rect->left;
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src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
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(dst_rect->left - layer->left);
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if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
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i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
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{
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mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
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PSD_MAX(0, dst_rect->left - layer_mask_info->left);
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}
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else
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{
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mask_data = NULL;
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}
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for(j = 0; j < width; j ++, dst_data ++, src_data ++)
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{
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src_color = *src_data;
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src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
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{
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mask_color = *mask_data;
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mask_data ++;
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switch(mask_color)
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{
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case 0:
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continue;
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case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
else if(default_mask_color != 255)
|
|
{
|
|
switch(default_mask_color)
|
|
{
|
|
case 0:
|
|
continue;
|
|
case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * default_mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch(src_alpha)
|
|
{
|
|
case 0:
|
|
continue;
|
|
default:
|
|
src_alpha = src_alpha * opacity >> 8;
|
|
dst_color = *dst_data;
|
|
dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
|
|
switch(dst_alpha)
|
|
{
|
|
case 0:
|
|
*dst_data = (src_alpha << 24) | (src_color & 0x00FFFFFF);
|
|
continue;
|
|
case 255:
|
|
mix_alpha = src_alpha;
|
|
break;
|
|
default:
|
|
mix_alpha = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
|
|
dst_alpha = dst_alpha + ((256 - dst_alpha) * src_alpha >> 8);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
src_red = PSD_GET_RED_COMPONENT(src_color);
|
|
src_green = PSD_GET_GREEN_COMPONENT(src_color);
|
|
src_blue = PSD_GET_BLUE_COMPONENT(src_color);
|
|
dst_red = PSD_GET_RED_COMPONENT(dst_color);
|
|
dst_green = PSD_GET_GREEN_COMPONENT(dst_color);
|
|
dst_blue = PSD_GET_BLUE_COMPONENT(dst_color);
|
|
|
|
switch(blend_mode)
|
|
{
|
|
case psd_blend_mode_normal:
|
|
PSD_BLEND_NORMAL(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_NORMAL(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_NORMAL(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_darken:
|
|
PSD_BLEND_DARKEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_DARKEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_DARKEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_multiply:
|
|
PSD_BLEND_MULTIPLY(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_MULTIPLY(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_MULTIPLY(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_color_burn:
|
|
PSD_BLEND_COLOR_BURN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_COLOR_BURN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_COLOR_BURN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_burn:
|
|
PSD_BLEND_LINEEAR_BURN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEEAR_BURN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEEAR_BURN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_lighten:
|
|
PSD_BLEND_LIGHTEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LIGHTEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LIGHTEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_screen:
|
|
PSD_BLEND_SCREEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_SCREEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_SCREEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_color_dodge:
|
|
PSD_BLEND_COLOR_DODGE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_COLOR_DODGE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_COLOR_DODGE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_dodge:
|
|
PSD_BLEND_LINEAR_DODGE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEAR_DODGE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEAR_DODGE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_overlay:
|
|
PSD_BLEND_OVERLAY(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_OVERLAY(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_OVERLAY(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_soft_light:
|
|
PSD_BLEND_SOFTLIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_SOFTLIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_SOFTLIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hard_light:
|
|
PSD_BLEND_HARDLIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_HARDLIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_HARDLIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_vivid_light: // ?
|
|
PSD_BLEND_VIVID_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_VIVID_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_VIVID_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_light: // ?
|
|
PSD_BLEND_LINEAR_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEAR_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEAR_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_pin_light:
|
|
PSD_BLEND_PIN_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_PIN_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_PIN_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hard_mix:
|
|
PSD_BLEND_HARD_MIX(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_HARD_MIX(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_HARD_MIX(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_difference:
|
|
PSD_BLEND_DIFFERENCE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_DIFFERENCE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_DIFFERENCE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_exclusion:
|
|
PSD_BLEND_EXCLUSION(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_EXCLUSION(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_EXCLUSION(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hue:
|
|
case psd_blend_mode_saturation:
|
|
case psd_blend_mode_color:
|
|
case psd_blend_mode_luminosity:
|
|
psd_rgb_to_inthsb(src_red, src_green, src_blue, &src_hue, &src_saturation, &src_brightness);
|
|
psd_rgb_to_inthsb(dst_red, dst_green, dst_blue, &dst_hue, &dst_saturation, &dst_brightness);
|
|
switch(blend_mode)
|
|
{
|
|
case psd_blend_mode_hue:
|
|
dst_hue = src_hue;
|
|
break;
|
|
case psd_blend_mode_saturation:
|
|
dst_saturation = src_saturation;
|
|
break;
|
|
case psd_blend_mode_color:
|
|
dst_hue = src_hue;
|
|
dst_saturation = src_saturation;
|
|
break;
|
|
case psd_blend_mode_luminosity:
|
|
dst_brightness = src_brightness;
|
|
break;
|
|
}
|
|
psd_inthsb_to_rgb(dst_hue, dst_saturation, dst_brightness, &src_red, &src_green, &src_blue);
|
|
dst_red = PSD_BLEND_CHANNEL(dst_red, src_red, mix_alpha);
|
|
dst_green = PSD_BLEND_CHANNEL(dst_green, src_green, mix_alpha);
|
|
dst_blue = PSD_BLEND_CHANNEL(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
}
|
|
|
|
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
|
|
}
|
|
}
|
|
}
|
|
|
|
void psd_layer_blend_normal_restricted(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect)
|
|
{
|
|
psd_bool gray_restricted = psd_false, red_restricted = psd_false, green_restricted = psd_false, blue_restricted = psd_false;
|
|
psd_int min_src_gray = 0, max_src_gray = 255, min_src_red = 0, max_src_red = 255,
|
|
min_src_green = 0, max_src_green = 255, min_src_blue = 0, max_src_blue = 255;
|
|
psd_int min_dst_gray = 0, max_dst_gray = 255, min_dst_red = 0, max_dst_red = 255,
|
|
min_dst_green = 0, max_dst_green = 255, min_dst_blue = 0, max_dst_blue = 255;
|
|
psd_argb_color * dst_data, * src_data, dst_color, src_color;
|
|
psd_int i, j, width, height;
|
|
psd_int opacity;
|
|
psd_int src_red, src_green, src_blue, src_alpha,
|
|
dst_red, dst_green, dst_blue, dst_alpha, gray;
|
|
psd_int flr1, flr2;
|
|
psd_color_component * mask_data = NULL, mask_color, default_mask_color;
|
|
psd_int mask_left, mask_right, dst_left;
|
|
psd_layer_mask_info * layer_mask_info = &layer->layer_mask_info;
|
|
|
|
for(i = 0; i < layer->number_of_channels; i ++)
|
|
{
|
|
if(layer->channel_info[i].restricted == psd_true)
|
|
{
|
|
switch(layer->channel_info[i].channel_id)
|
|
{
|
|
case 0:
|
|
red_restricted = psd_true;
|
|
break;
|
|
case 1:
|
|
green_restricted = psd_true;
|
|
break;
|
|
case 2:
|
|
blue_restricted = psd_true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(red_restricted == psd_true && green_restricted == psd_true && blue_restricted == psd_true)
|
|
gray_restricted = psd_true;
|
|
|
|
if(layer->layer_blending_ranges.gray_black_src == layer->layer_blending_ranges.gray_white_src)
|
|
gray_restricted = psd_true;
|
|
|
|
if(gray_restricted == psd_true)
|
|
return;
|
|
|
|
min_src_gray = layer->layer_blending_ranges.gray_black_src >> 8;
|
|
max_src_gray = layer->layer_blending_ranges.gray_white_src >> 8;
|
|
min_dst_gray = layer->layer_blending_ranges.gray_black_dst >> 8;
|
|
max_dst_gray = layer->layer_blending_ranges.gray_white_dst >> 8;
|
|
|
|
for(i = 0; i < layer->layer_blending_ranges.number_of_blending_channels; i ++)
|
|
{
|
|
switch(i)
|
|
{
|
|
case 0:
|
|
min_src_red = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_red = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_red = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_red = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
case 1:
|
|
min_src_green = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_green = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_green = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_green = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
case 2:
|
|
min_src_blue = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_blue = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_blue = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_blue = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
width = psd_rect_width(dst_rect);
|
|
height = psd_rect_height(dst_rect);
|
|
opacity = layer->opacity * layer->fill_opacity / 255;
|
|
if(layer->group_layer != NULL)
|
|
opacity = opacity * layer->group_layer->opacity / 255;
|
|
|
|
if(layer_mask_info->disabled == psd_false)
|
|
default_mask_color = layer_mask_info->default_color;
|
|
else
|
|
default_mask_color = 255;
|
|
mask_left = layer_mask_info->left;
|
|
mask_right = layer_mask_info->right;
|
|
dst_left = dst_rect->left;
|
|
|
|
for(i = 0; i < height; i ++)
|
|
{
|
|
dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
|
|
dst_rect->left;
|
|
src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
|
|
(dst_rect->left - layer->left);
|
|
|
|
if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
|
|
i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
|
|
{
|
|
mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
|
|
PSD_MAX(0, dst_rect->left - layer_mask_info->left);
|
|
}
|
|
else
|
|
{
|
|
mask_data = NULL;
|
|
}
|
|
|
|
for(j = 0; j < width; j ++, dst_data ++, src_data ++)
|
|
{
|
|
src_color = *src_data;
|
|
src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
|
|
|
|
if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
|
|
{
|
|
mask_color = *mask_data;
|
|
mask_data ++;
|
|
switch(mask_color)
|
|
{
|
|
case 0:
|
|
continue;
|
|
case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
else if(default_mask_color != 255)
|
|
{
|
|
switch(default_mask_color)
|
|
{
|
|
case 0:
|
|
continue;
|
|
case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * default_mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch(src_alpha)
|
|
{
|
|
case 0:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * opacity >> 8;
|
|
src_red = PSD_GET_RED_COMPONENT(src_color);
|
|
src_green = PSD_GET_GREEN_COMPONENT(src_color);
|
|
src_blue = PSD_GET_BLUE_COMPONENT(src_color);
|
|
dst_color = *dst_data;
|
|
dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
|
|
dst_red = PSD_GET_RED_COMPONENT(dst_color);
|
|
dst_green = PSD_GET_GREEN_COMPONENT(dst_color);
|
|
dst_blue = PSD_GET_BLUE_COMPONENT(dst_color);
|
|
|
|
if(max_dst_gray - min_dst_gray != 255)
|
|
{
|
|
gray = (dst_red + dst_green + dst_blue) / 3;
|
|
if(gray < min_dst_gray || gray > max_dst_gray)
|
|
continue;
|
|
}
|
|
if(max_src_gray - min_src_gray != 255)
|
|
{
|
|
gray = (src_red + src_green + src_blue) / 3;
|
|
if(gray < min_src_gray || gray > max_src_gray)
|
|
continue;
|
|
}
|
|
|
|
if(dst_red < min_dst_red || dst_red > max_dst_red ||
|
|
src_red < min_src_red || src_red > max_src_red)
|
|
continue;
|
|
if(dst_green < min_dst_green || dst_green > max_dst_green ||
|
|
src_green < min_src_green || src_green > max_src_green)
|
|
continue;
|
|
if(dst_blue < min_dst_blue || dst_blue > max_dst_blue ||
|
|
src_blue < min_src_blue || src_blue > max_src_blue)
|
|
continue;
|
|
|
|
if(src_alpha == 255)
|
|
{
|
|
dst_alpha = 255;
|
|
if(red_restricted == psd_false)
|
|
dst_red = src_red;
|
|
if(green_restricted == psd_false)
|
|
dst_green = src_green;
|
|
if(blue_restricted == psd_false)
|
|
dst_blue = src_blue;
|
|
}
|
|
else if(dst_alpha == 255)
|
|
{
|
|
dst_alpha = 255;
|
|
if(red_restricted == psd_false)
|
|
dst_red = ((dst_red << 8) + (PSD_GET_RED_COMPONENT(src_color) - dst_red) * src_alpha) >> 8;
|
|
if(green_restricted == psd_false)
|
|
dst_green = ((dst_green << 8) + (PSD_GET_GREEN_COMPONENT(src_color) - dst_green) * src_alpha) >> 8;
|
|
if(blue_restricted == psd_false)
|
|
dst_blue = ((dst_blue << 8) + (PSD_GET_BLUE_COMPONENT(src_color) - dst_blue) * src_alpha) >> 8;
|
|
}
|
|
else
|
|
{
|
|
flr1 = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
|
|
flr2 = 0x100 - flr1;
|
|
dst_alpha = dst_alpha + ((256 - dst_alpha) * src_alpha >> 8);
|
|
if(red_restricted == psd_false)
|
|
dst_red = (dst_red * flr2 + PSD_GET_RED_COMPONENT(src_color) * flr1) >> 8;
|
|
if(green_restricted == psd_false)
|
|
dst_green = (dst_green * flr2 + PSD_GET_GREEN_COMPONENT(src_color) * flr1) >> 8;
|
|
if(blue_restricted == psd_false)
|
|
dst_blue = (dst_blue * flr2 + PSD_GET_BLUE_COMPONENT(src_color) * flr1) >> 8;
|
|
}
|
|
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void psd_layer_blend_restricted(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect)
|
|
{
|
|
psd_bool gray_restricted = psd_false, red_restricted = psd_false, green_restricted = psd_false, blue_restricted = psd_false;
|
|
psd_int min_src_gray = 0, max_src_gray = 255, min_src_red = 0, max_src_red = 255,
|
|
min_src_green = 0, max_src_green = 255, min_src_blue = 0, max_src_blue = 255;
|
|
psd_int min_dst_gray = 0, max_dst_gray = 255, min_dst_red = 0, max_dst_red = 255,
|
|
min_dst_green = 0, max_dst_green = 255, min_dst_blue = 0, max_dst_blue = 255;
|
|
psd_argb_color * dst_data, * src_data, dst_color, src_color;
|
|
psd_int i, j, width, height;
|
|
psd_int opacity, mix_alpha;
|
|
psd_int src_red, src_green, src_blue, src_alpha,
|
|
dst_red, dst_green, dst_blue, dst_alpha, gray;
|
|
psd_int dst_hue, dst_saturation, dst_brightness, src_hue, src_saturation, src_brightness;
|
|
psd_blend_mode blend_mode;
|
|
psd_color_component * mask_data = NULL, mask_color, default_mask_color;
|
|
psd_int mask_left, mask_right, dst_left;
|
|
psd_layer_mask_info * layer_mask_info = &layer->layer_mask_info;
|
|
psd_uchar * rand_data;
|
|
|
|
for(i = 0; i < layer->number_of_channels; i ++)
|
|
{
|
|
if(layer->channel_info[i].restricted == psd_true)
|
|
{
|
|
switch(layer->channel_info[i].channel_id)
|
|
{
|
|
case 0:
|
|
red_restricted = psd_true;
|
|
break;
|
|
case 1:
|
|
green_restricted = psd_true;
|
|
break;
|
|
case 2:
|
|
blue_restricted = psd_true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(red_restricted == psd_true && green_restricted == psd_true && blue_restricted == psd_true)
|
|
gray_restricted = psd_true;
|
|
|
|
if(layer->layer_blending_ranges.gray_black_src == layer->layer_blending_ranges.gray_white_src)
|
|
gray_restricted = psd_true;
|
|
|
|
if(gray_restricted == psd_true)
|
|
return;
|
|
|
|
min_src_gray = layer->layer_blending_ranges.gray_black_src >> 8;
|
|
max_src_gray = layer->layer_blending_ranges.gray_white_src >> 8;
|
|
min_dst_gray = layer->layer_blending_ranges.gray_black_dst >> 8;
|
|
max_dst_gray = layer->layer_blending_ranges.gray_white_dst >> 8;
|
|
|
|
for(i = 0; i < layer->layer_blending_ranges.number_of_blending_channels; i ++)
|
|
{
|
|
switch(i)
|
|
{
|
|
case 0:
|
|
min_src_red = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_red = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_red = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_red = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
case 1:
|
|
min_src_green = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_green = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_green = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_green = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
case 2:
|
|
min_src_blue = layer->layer_blending_ranges.channel_black_src[i] >> 8;
|
|
max_src_blue = layer->layer_blending_ranges.channel_white_src[i] >> 8;
|
|
min_dst_blue = layer->layer_blending_ranges.channel_black_dst[i] >> 8;
|
|
max_dst_blue = layer->layer_blending_ranges.channel_white_dst[i] >> 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
width = psd_rect_width(dst_rect);
|
|
height = psd_rect_height(dst_rect);
|
|
opacity = layer->opacity * layer->fill_opacity / 255;
|
|
if(layer->group_layer != NULL)
|
|
opacity = opacity * layer->group_layer->opacity / 255;
|
|
if(layer->group_layer != NULL && layer->group_layer->divider_blend_mode != psd_blend_mode_pass_through)
|
|
blend_mode = layer->group_layer->divider_blend_mode;
|
|
else
|
|
blend_mode = layer->blend_mode;
|
|
|
|
if(layer_mask_info->disabled == psd_false)
|
|
default_mask_color = layer_mask_info->default_color;
|
|
else
|
|
default_mask_color = 255;
|
|
mask_left = layer_mask_info->left;
|
|
mask_right = layer_mask_info->right;
|
|
dst_left = dst_rect->left;
|
|
|
|
for(i = 0; i < height; i ++)
|
|
{
|
|
dst_data = context->blending_image_data + (i + dst_rect->top) * context->width +
|
|
dst_rect->left;
|
|
src_data = layer->image_data + (i + dst_rect->top - layer->top) * layer->width +
|
|
(dst_rect->left - layer->left);
|
|
rand_data = context->rand_data + (i + dst_rect->top) * context->width + dst_rect->left;
|
|
|
|
if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL &&
|
|
i + dst_rect->top >= layer_mask_info->top && i + dst_rect->top < layer_mask_info->bottom)
|
|
{
|
|
mask_data = layer_mask_info->mask_data + (i + dst_rect->top - layer_mask_info->top) * layer_mask_info->width +
|
|
PSD_MAX(0, dst_rect->left - layer_mask_info->left);
|
|
}
|
|
else
|
|
{
|
|
mask_data = NULL;
|
|
}
|
|
|
|
for(j = 0; j < width; j ++, dst_data ++, src_data ++, rand_data ++)
|
|
{
|
|
src_color = *src_data;
|
|
src_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
|
|
|
|
if(mask_data != NULL && j + dst_left >= mask_left && j + dst_left < mask_right)
|
|
{
|
|
mask_color = *mask_data;
|
|
mask_data ++;
|
|
switch(mask_color)
|
|
{
|
|
case 0:
|
|
continue;
|
|
case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
else if(default_mask_color != 255)
|
|
{
|
|
switch(default_mask_color)
|
|
{
|
|
case 0:
|
|
continue;
|
|
case 255:
|
|
break;
|
|
default:
|
|
src_alpha = src_alpha * default_mask_color >> 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch(src_alpha)
|
|
{
|
|
case 0:
|
|
continue;
|
|
default:
|
|
src_alpha = src_alpha * opacity >> 8;
|
|
dst_color = *dst_data;
|
|
dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
|
|
switch(dst_alpha)
|
|
{
|
|
case 0:
|
|
*dst_data = (src_alpha << 24) | (src_color & 0x00FFFFFF);
|
|
continue;
|
|
case 255:
|
|
mix_alpha = src_alpha;
|
|
break;
|
|
default:
|
|
mix_alpha = (src_alpha << 8) / (src_alpha + ((256 - src_alpha) * dst_alpha >> 8));
|
|
dst_alpha = dst_alpha + ((256 - dst_alpha) * src_alpha >> 8);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
src_red = PSD_GET_RED_COMPONENT(src_color);
|
|
src_green = PSD_GET_GREEN_COMPONENT(src_color);
|
|
src_blue = PSD_GET_BLUE_COMPONENT(src_color);
|
|
dst_color = *dst_data;
|
|
dst_alpha = PSD_GET_ALPHA_COMPONENT(dst_color);
|
|
dst_red = PSD_GET_RED_COMPONENT(dst_color);
|
|
dst_green = PSD_GET_GREEN_COMPONENT(dst_color);
|
|
dst_blue = PSD_GET_BLUE_COMPONENT(dst_color);
|
|
|
|
if(max_dst_gray - min_dst_gray != 255)
|
|
{
|
|
gray = (dst_red + dst_green + dst_blue) / 3;
|
|
if(gray < min_dst_gray || gray > max_dst_gray)
|
|
continue;
|
|
}
|
|
if(max_src_gray - min_src_gray != 255)
|
|
{
|
|
gray = (src_red + src_green + src_blue) / 3;
|
|
if(gray < min_src_gray || gray > max_src_gray)
|
|
continue;
|
|
}
|
|
|
|
if(dst_red < min_dst_red || dst_red > max_dst_red ||
|
|
src_red < min_src_red || src_red > max_src_red)
|
|
continue;
|
|
if(dst_green < min_dst_green || dst_green > max_dst_green ||
|
|
src_green < min_src_green || src_green > max_src_green)
|
|
continue;
|
|
if(dst_blue < min_dst_blue || dst_blue > max_dst_blue ||
|
|
src_blue < min_src_blue || src_blue > max_src_blue)
|
|
continue;
|
|
|
|
switch(blend_mode)
|
|
{
|
|
case psd_blend_mode_normal:
|
|
PSD_BLEND_NORMAL(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_NORMAL(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_NORMAL(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_dissolve:
|
|
switch(mix_alpha)
|
|
{
|
|
case 0:
|
|
break;
|
|
case 255:
|
|
*dst_data = (src_color & 0x00FFFFFF) | 0xFF000000;
|
|
break;
|
|
default:
|
|
if(*rand_data <= mix_alpha)
|
|
*dst_data = (src_color & 0x00FFFFFF) | 0xFF000000;
|
|
break;
|
|
}
|
|
continue;
|
|
case psd_blend_mode_darken:
|
|
PSD_BLEND_DARKEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_DARKEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_DARKEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_multiply:
|
|
PSD_BLEND_MULTIPLY(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_MULTIPLY(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_MULTIPLY(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_color_burn:
|
|
PSD_BLEND_COLOR_BURN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_COLOR_BURN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_COLOR_BURN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_burn:
|
|
PSD_BLEND_LINEEAR_BURN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEEAR_BURN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEEAR_BURN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_lighten:
|
|
PSD_BLEND_LIGHTEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LIGHTEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LIGHTEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_screen:
|
|
PSD_BLEND_SCREEN(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_SCREEN(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_SCREEN(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_color_dodge:
|
|
PSD_BLEND_COLOR_DODGE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_COLOR_DODGE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_COLOR_DODGE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_dodge:
|
|
PSD_BLEND_LINEAR_DODGE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEAR_DODGE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEAR_DODGE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_overlay:
|
|
PSD_BLEND_OVERLAY(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_OVERLAY(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_OVERLAY(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_soft_light:
|
|
PSD_BLEND_SOFTLIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_SOFTLIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_SOFTLIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hard_light:
|
|
PSD_BLEND_HARDLIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_HARDLIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_HARDLIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_vivid_light: // ?
|
|
PSD_BLEND_VIVID_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_VIVID_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_VIVID_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_linear_light: // ?
|
|
PSD_BLEND_LINEAR_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_LINEAR_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_LINEAR_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_pin_light:
|
|
PSD_BLEND_PIN_LIGHT(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_PIN_LIGHT(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_PIN_LIGHT(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hard_mix:
|
|
PSD_BLEND_HARD_MIX(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_HARD_MIX(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_HARD_MIX(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_difference:
|
|
PSD_BLEND_DIFFERENCE(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_DIFFERENCE(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_DIFFERENCE(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_exclusion:
|
|
PSD_BLEND_EXCLUSION(dst_red, src_red, mix_alpha);
|
|
PSD_BLEND_EXCLUSION(dst_green, src_green, mix_alpha);
|
|
PSD_BLEND_EXCLUSION(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
case psd_blend_mode_hue:
|
|
case psd_blend_mode_saturation:
|
|
case psd_blend_mode_color:
|
|
case psd_blend_mode_luminosity:
|
|
psd_rgb_to_inthsb(src_red, src_green, src_blue, &src_hue, &src_saturation, &src_brightness);
|
|
psd_rgb_to_inthsb(dst_red, dst_green, dst_blue, &dst_hue, &dst_saturation, &dst_brightness);
|
|
switch(blend_mode)
|
|
{
|
|
case psd_blend_mode_hue:
|
|
dst_hue = src_hue;
|
|
break;
|
|
case psd_blend_mode_saturation:
|
|
dst_saturation = src_saturation;
|
|
break;
|
|
case psd_blend_mode_color:
|
|
dst_hue = src_hue;
|
|
dst_saturation = src_saturation;
|
|
break;
|
|
case psd_blend_mode_luminosity:
|
|
dst_brightness = src_brightness;
|
|
break;
|
|
}
|
|
psd_inthsb_to_rgb(dst_hue, dst_saturation, dst_brightness, &src_red, &src_green, &src_blue);
|
|
dst_red = PSD_BLEND_CHANNEL(dst_red, src_red, mix_alpha);
|
|
dst_green = PSD_BLEND_CHANNEL(dst_green, src_green, mix_alpha);
|
|
dst_blue = PSD_BLEND_CHANNEL(dst_blue, src_blue, mix_alpha);
|
|
break;
|
|
}
|
|
|
|
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // ifdef PSD_SUPPORT_LAYER_BLEND
|
|
|
|
|
|
psd_status psd_image_blend(psd_context * context, psd_int left, psd_int top, psd_int width, psd_int height)
|
|
{
|
|
#ifdef PSD_SUPPORT_LAYER_BLEND
|
|
psd_rect image_rect, layer_rect, mask_rect, rc;
|
|
psd_int i;
|
|
psd_layer_record * layer;
|
|
psd_layer_mask_info * layer_mask_info;
|
|
psd_status status;
|
|
|
|
if(context == NULL)
|
|
return psd_status_invalid_context;
|
|
|
|
if(context->rand_data == NULL)
|
|
{
|
|
status = psd_build_rand_data(context);
|
|
if(status != psd_status_done)
|
|
return status;
|
|
}
|
|
|
|
psd_make_rect(&image_rect, left, top, left + width, top + height);
|
|
psd_make_rect(&rc, 0, 0, context->width, context->height);
|
|
if(psd_incept_rect(&image_rect, &rc, &image_rect) == psd_false)
|
|
return psd_status_blend_empty_rect;
|
|
|
|
if(context->blending_image_data == NULL)
|
|
{
|
|
context->blending_image_data = (psd_argb_color *)psd_malloc(context->width * context->height * 4);
|
|
if(context->blending_image_data == NULL)
|
|
return psd_status_malloc_failed;
|
|
if(image_rect.left != 0 || image_rect.top != 0 ||
|
|
image_rect.right != context->width || image_rect.bottom != context->height)
|
|
{
|
|
psd_color_memset(context->blending_image_data, psd_color_clear, context->width * context->height);
|
|
}
|
|
}
|
|
|
|
psd_image_clear_rect(context, &image_rect);
|
|
|
|
for(i = 0; i < context->layer_count; i ++)
|
|
{
|
|
layer = &context->layer_records[i];
|
|
if(layer->visible == psd_false || layer->opacity == 0)
|
|
continue;
|
|
if(layer->group_layer != NULL)
|
|
{
|
|
if(layer->group_layer->visible == psd_false || layer->group_layer->opacity == 0)
|
|
continue;
|
|
}
|
|
|
|
// if it is
|
|
psd_adjustment_layer_blend(context, layer, &image_rect);
|
|
|
|
// if it is
|
|
#ifdef PSD_SUPPORT_EFFECTS_BLEND
|
|
psd_layer_effects_blend_background(context, layer, &image_rect);
|
|
#endif
|
|
|
|
if(layer->image_data != NULL && layer->fill_opacity > 0 && layer->width > 0 && layer->height > 0)
|
|
{
|
|
psd_make_rect(&layer_rect, layer->left, layer->top, layer->right, layer->bottom);
|
|
if(psd_incept_rect(&image_rect, &layer_rect, &layer_rect) == psd_true)
|
|
{
|
|
layer_mask_info = &layer->layer_mask_info;
|
|
if(layer_mask_info->disabled == psd_false && layer_mask_info->mask_data != NULL && layer_mask_info->default_color == 0)
|
|
{
|
|
psd_make_rect(&mask_rect, layer_mask_info->left, layer_mask_info->top,
|
|
layer_mask_info->right, layer_mask_info->bottom);
|
|
if(psd_incept_rect(&mask_rect, &layer_rect, &layer_rect) == psd_false)
|
|
continue;
|
|
}
|
|
|
|
if(psd_layer_check_restricted(context, layer) == psd_true)
|
|
{
|
|
if(layer->blend_mode != psd_blend_mode_normal ||
|
|
(layer->group_layer != NULL && layer->group_layer->divider_blend_mode != psd_blend_mode_pass_through))
|
|
psd_layer_blend_restricted(context, layer, &layer_rect);
|
|
else
|
|
psd_layer_blend_normal_restricted(context, layer, &layer_rect);
|
|
}
|
|
else
|
|
{
|
|
if(layer->blend_mode != psd_blend_mode_normal ||
|
|
(layer->group_layer != NULL && layer->group_layer->divider_blend_mode != psd_blend_mode_pass_through))
|
|
psd_layer_blend(context, layer, &layer_rect);
|
|
else
|
|
psd_layer_blend_normal(context, layer, &layer_rect);
|
|
}
|
|
}
|
|
}
|
|
|
|
// if it is
|
|
#ifdef PSD_SUPPORT_EFFECTS_BLEND
|
|
psd_layer_effects_blend_foreground(context, layer, &image_rect);
|
|
#endif
|
|
}
|
|
|
|
return psd_status_done;
|
|
#else // ifdef PSD_SUPPORT_LAYER_BLEND
|
|
return psd_status_unsupport_yet;
|
|
#endif // ifdef PSD_SUPPORT_LAYER_BLEND
|
|
}
|
|
|
|
void psd_image_blend_free(psd_context * context)
|
|
{
|
|
psd_freeif(context->rand_data);
|
|
psd_freeif(context->blending_image_data);
|
|
}
|
|
|