void psd_adjustment_blend_color(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect,
psd_adjustment_blend_proc * blend_proc, psd_uint layer_info_data)
{
psd_int i, j, width, height;
psd_int dst_red, dst_green, dst_blue, dst_alpha, src_red, src_green, src_blue;
psd_argb_color *src_data, * dst_data, src_color;
width = psd_rect_width(dst_rect);
height = psd_rect_height(dst_rect);
for(i = 0; i < height; i ++)
{
src_data = context->blending_image_data + (dst_rect->top + i) * context->width + dst_rect->left;
dst_data = layer->image_data + (dst_rect->top + i) * layer->width + dst_rect->left;
for(j = 0; j < width; j ++, src_data ++, dst_data ++)
{
src_color = *src_data;
dst_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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 = src_red;
dst_green = src_green;
dst_blue = src_blue;
(*blend_proc)(layer_info_data, &dst_red, &dst_green, &dst_blue);
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
}
}
}
void psd_adjustment_blend_gray(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect, psd_uchar * lookup_table)
{
psd_int i, j, width, height;
psd_int dst_red, dst_green, dst_blue, dst_alpha, src_red, src_green, src_blue;
psd_argb_color *src_data, * dst_data, src_color;
psd_int gray;
width = psd_rect_width(dst_rect);
height = psd_rect_height(dst_rect);
for(i = 0; i < height; i ++)
{
src_data = context->blending_image_data + (dst_rect->top + i) * context->width + dst_rect->left;
dst_data = layer->image_data + (dst_rect->top + i) * layer->width + dst_rect->left;
for(j = 0; j < width; j ++, src_data ++, dst_data ++)
{
src_color = *src_data;
dst_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
src_red = PSD_GET_RED_COMPONENT(src_color);
src_green = PSD_GET_GREEN_COMPONENT(src_color);
src_blue = PSD_GET_BLUE_COMPONENT(src_color);
gray = PSD_GET_COLOR_INTENSITY(src_red, src_green, src_blue);
dst_red = lookup_table[gray];
dst_green = lookup_table[gray];
dst_blue = lookup_table[gray];
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
}
}
}
void psd_inflate_rect(psd_rect * rc, psd_int dlt_x, psd_int dlt_y)
{
if(rc->left - dlt_x > rc->right + dlt_x)
dlt_x = psd_rect_width(rc) / 2;
if(rc->top - dlt_y > rc->bottom + dlt_y)
dlt_y = psd_rect_height(rc) / 2;
rc->left -= dlt_x ;
rc->right += dlt_x ;
rc->top -= dlt_y ;
rc->bottom += dlt_y ;
}
void psd_adjustment_blend_rgb(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect,
psd_uchar * red_lookup_table, psd_uchar * green_lookup_table, psd_uchar * blue_lookup_table,
psd_bool preserve_luminosity)
{
psd_int i, j, width, height;
psd_int dst_red, dst_green, dst_blue, dst_alpha, src_red, src_green, src_blue;
psd_argb_color *src_data, * dst_data, src_color;
psd_int dst_luminosity, src_luminosity, value;
width = psd_rect_width(dst_rect);
height = psd_rect_height(dst_rect);
for(i = 0; i < height; i ++)
{
src_data = context->blending_image_data + (dst_rect->top + i) * context->width + dst_rect->left;
dst_data = layer->image_data + (dst_rect->top + i) * layer->width + dst_rect->left;
for(j = 0; j < width; j ++, src_data ++, dst_data ++)
{
src_color = *src_data;
dst_alpha = PSD_GET_ALPHA_COMPONENT(src_color);
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 = red_lookup_table[src_red];
dst_green = green_lookup_table[src_green];
dst_blue = blue_lookup_table[src_blue];
if(preserve_luminosity == psd_true)
{
src_luminosity = psd_rgb_get_brightness(src_red, src_green, src_blue);
dst_luminosity = psd_rgb_get_brightness(dst_red, dst_green, dst_blue);
value = dst_red * src_luminosity / dst_luminosity;
src_red = PSD_CONSTRAIN(value, 0, 255);
value = dst_green * src_luminosity / dst_luminosity;
src_green = PSD_CONSTRAIN(value, 0, 255);
value = dst_blue * src_luminosity / dst_luminosity;
src_blue = PSD_CONSTRAIN(value, 0, 255);
}
*dst_data = PSD_ARGB_TO_COLOR(dst_alpha, dst_red, dst_green, dst_blue);
}
}
}
