1/*
2 * Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved.
3
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10
11 * The above copyright notice and this permission notice shall be included in all
12 * copies or substantial portions of the Software.
13
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23#include "tvgCanvasImpl.h"
24
25#ifdef THORVG_GL_RASTER_SUPPORT
26 #include "tvgGlRenderer.h"
27#else
28 class GlRenderer : public RenderMethod
29 {
30 //Non Supported. Dummy Class */
31 };
32#endif
33
34/************************************************************************/
35/* Internal Class Implementation */
36/************************************************************************/
37
38struct GlCanvas::Impl
39{
40};
41
42
43/************************************************************************/
44/* External Class Implementation */
45/************************************************************************/
46
47#ifdef THORVG_GL_RASTER_SUPPORT
48GlCanvas::GlCanvas() : Canvas(GlRenderer::gen()), pImpl(new Impl)
49#else
50GlCanvas::GlCanvas() : Canvas(nullptr), pImpl(new Impl)
51#endif
52{
53}
54
55
56
57GlCanvas::~GlCanvas()
58{
59 delete(pImpl);
60}
61
62
63Result GlCanvas::target(uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t h) noexcept
64{
65#ifdef THORVG_GL_RASTER_SUPPORT
66 //We know renderer type, avoid dynamic_cast for performance.
67 auto renderer = static_cast<GlRenderer*>(Canvas::pImpl->renderer);
68 if (!renderer) return Result::MemoryCorruption;
69
70 if (!renderer->target(buffer, stride, w, h)) return Result::Unknown;
71
72 //Paints must be updated again with this new target.
73 Canvas::pImpl->needRefresh();
74
75 return Result::Success;
76#endif
77 return Result::NonSupport;
78}
79
80
81unique_ptr<GlCanvas> GlCanvas::gen() noexcept
82{
83#ifdef THORVG_GL_RASTER_SUPPORT
84 if (GlRenderer::init() <= 0) return nullptr;
85 return unique_ptr<GlCanvas>(new GlCanvas);
86#endif
87 return nullptr;
88}
89