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/*
* Copyright (c) 2018 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "vkvg_surface_internal.h"
#include "vkvg_context_internal.h"
#include "vkvg_device_internal.h"
#include "vkvg_pattern.h"
VkvgPattern vkvg_pattern_create(){
VkvgPattern pat = (vkvg_pattern_t*)calloc(1, sizeof(vkvg_pattern_t));
pat->type = VKVG_PATTERN_TYPE_SOLID;
pat->extend = VKVG_EXTEND_NONE;
pat->filter = VKVG_FILTER_BEST;
pat->data = (vkvg_color_t*)calloc(1,sizeof(vkvg_color_t));
pat->references = 1;
return pat;
}
VkvgPattern vkvg_pattern_create_rgba (float r, float g, float b, float a){
VkvgPattern pat = (vkvg_pattern_t*)calloc(1, sizeof(vkvg_pattern_t));
pat->type = VKVG_PATTERN_TYPE_SOLID;
pat->extend = VKVG_EXTEND_NONE;
vkvg_color_t* c = (vkvg_color_t*)calloc(1,sizeof(vkvg_color_t));
#ifdef VKVG_PREMULT_ALPHA
c->r = r * a;
c->g = g * a;
c->b = b * a;
c->a = a;
#else
c->r = r;
c->g = g;
c->b = b;
c->a = a;
#endif
pat->data = c;
pat->references = 1;
return pat;
}
VkvgPattern vkvg_pattern_create_rgb (float r, float g, float b){
return vkvg_pattern_create_rgba (r,g,b,1.f);
}
VkvgPattern vkvg_pattern_create_for_surface (VkvgSurface surf){
VkvgPattern pat = (vkvg_pattern_t*)calloc(1, sizeof(vkvg_pattern_t));
pat->type = VKVG_PATTERN_TYPE_SURFACE;
pat->extend = VKVG_EXTEND_NONE;
pat->data = surf;
pat->references = 1;
vkvg_surface_reference (surf);
return pat;
}
VkvgPattern vkvg_pattern_create_linear (float x0, float y0, float x1, float y1){
VkvgPattern pat = (vkvg_pattern_t*)calloc(1, sizeof(vkvg_pattern_t));
pat->type = VKVG_PATTERN_TYPE_LINEAR;
pat->extend = VKVG_EXTEND_PAD;
vkvg_gradient_t* grad = (vkvg_gradient_t*)calloc(1,sizeof(vkvg_gradient_t));
vec4 cp0 = {x0, y0}, cp1 = {x1, y1};
grad->cp[0] = cp0;
grad->cp[1] = cp1;
pat->data = grad;
pat->references = 1;
return pat;
}
VkvgPattern vkvg_pattern_create_radial (float cx0, float cy0, float radius0,
float cx1, float cy1, float radius1){
VkvgPattern pat = (vkvg_pattern_t*)calloc(1, sizeof(vkvg_pattern_t));
pat->type = VKVG_PATTERN_TYPE_RADIAL;
pat->extend = VKVG_EXTEND_PAD;
vkvg_gradient_t* grad = (vkvg_gradient_t*)calloc(1,sizeof(vkvg_gradient_t));
vec4 cp0 = {cx0, cy0}, cp1 = {cx1, cy1}, rads = {radius0, radius1};
grad->cp[0] = cp0;
grad->cp[1] = cp1;
grad->cp[2] = rads;
pat->data = grad;
pat->references = 1;
return pat;
}
VkvgPattern vkvg_pattern_reference (VkvgPattern pat) {
pat->references++;
return pat;
}
uint32_t vkvg_pattern_get_reference_count (VkvgPattern pat) {
return pat->references;
}
void vkvg_pattern_add_color_stop (VkvgPattern pat, float offset, float r, float g, float b, float a) {
if (pat->type == VKVG_PATTERN_TYPE_SURFACE || pat->type == VKVG_PATTERN_TYPE_SOLID){
return;
}
vkvg_gradient_t* grad = (vkvg_gradient_t*)pat->data;
vkvg_color_t c = {r,g,b,a};
grad->colors[grad->count] = c;
grad->stops[grad->count].r = offset;
grad->count++;
}
void vkvg_pattern_set_extend (VkvgPattern pat, vkvg_extend_t extend){
pat->extend = extend;
}
void vkvg_pattern_set_filter (VkvgPattern pat, vkvg_filter_t filter){
pat->filter = filter;
}
vkvg_extend_t vkvg_pattern_get_extend (VkvgPattern pat){
return pat->extend;
}
vkvg_filter_t vkvg_pattern_get_filter (VkvgPattern pat){
return pat->filter;
}
vkvg_pattern_type_t vkvg_pattern_get_type (VkvgPattern pat){
return pat->type;
}
void vkvg_pattern_destroy(VkvgPattern pat)
{
pat->references--;
if (pat->references > 0)
return;
if (pat->type == VKVG_PATTERN_TYPE_SURFACE) {
VkvgSurface surf = (VkvgSurface)pat->data;
vkvg_surface_destroy (surf);
}else
free (pat->data);
free(pat);
}
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