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/*
* Copyright (c) 2020 - 2022 Samsung Electronics Co., Ltd. All rights reserved.
* 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.
*/
#ifndef _TVG_RENDER_H_
#define _TVG_RENDER_H_
#include "tvgCommon.h"
#include "tvgArray.h"
namespace tvg
{
enum RenderUpdateFlag {None = 0, Path = 1, Color = 2, Gradient = 4, Stroke = 8, Transform = 16, Image = 32, GradientStroke = 64, All = 255};
struct Surface
{
//TODO: Union for multiple types
uint32_t* buffer;
uint32_t stride;
uint32_t w, h;
uint32_t cs;
};
using RenderData = void*;
struct Compositor
{
CompositeMethod method;
uint32_t opacity;
};
struct RenderRegion
{
int32_t x, y, w, h;
void intersect(const RenderRegion& rhs)
{
auto x1 = x + w;
auto y1 = y + h;
auto x2 = rhs.x + rhs.w;
auto y2 = rhs.y + rhs.h;
x = (x > rhs.x) ? x : rhs.x;
y = (y > rhs.y) ? y : rhs.y;
w = ((x1 < x2) ? x1 : x2) - x;
h = ((y1 < y2) ? y1 : y2) - y;
if (w < 0) w = 0;
if (h < 0) h = 0;
}
};
struct RenderTransform
{
Matrix m; //3x3 Matrix Elements
float x = 0.0f;
float y = 0.0f;
float degree = 0.0f; //rotation degree
float scale = 1.0f; //scale factor
bool overriding = false; //user transform?
bool update();
void override(const Matrix& m);
RenderTransform();
RenderTransform(const RenderTransform* lhs, const RenderTransform* rhs);
};
class RenderMethod
{
public:
virtual ~RenderMethod() {}
virtual RenderData prepare(const Shape& shape, RenderData data, const RenderTransform* transform, uint32_t opacity, Array<RenderData>& clips, RenderUpdateFlag flags) = 0;
virtual RenderData prepare(Surface* image, RenderData data, const RenderTransform* transform, uint32_t opacity, Array<RenderData>& clips, RenderUpdateFlag flags) = 0;
virtual bool preRender() = 0;
virtual bool renderShape(RenderData data) = 0;
virtual bool renderImage(RenderData data) = 0;
virtual bool postRender() = 0;
virtual bool dispose(RenderData data) = 0;
virtual RenderRegion region(RenderData data) = 0;
virtual RenderRegion viewport() = 0;
virtual bool viewport(const RenderRegion& vp) = 0;
virtual bool clear() = 0;
virtual bool sync() = 0;
virtual Compositor* target(const RenderRegion& region) = 0;
virtual bool beginComposite(Compositor* cmp, CompositeMethod method, uint32_t opacity) = 0;
virtual bool endComposite(Compositor* cmp) = 0;
virtual uint32_t colorSpace() = 0;
};
}
#endif //_TVG_RENDER_H_
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