1 /*
2 * Copyright (c) 2020 - 2024 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 "../../lv_conf_internal.h"
24 #if LV_USE_THORVG_INTERNAL
25
26 #include "tvgCanvas.h"
27
28 #ifdef THORVG_GL_RASTER_SUPPORT
29 #include "tvgGlRenderer.h"
30 #else
31 class GlRenderer : public RenderMethod
32 {
33 //Non Supported. Dummy Class */
34 };
35 #endif
36
37 /************************************************************************/
38 /* Internal Class Implementation */
39 /************************************************************************/
40
41 struct GlCanvas::Impl
42 {
43 };
44
45
46 /************************************************************************/
47 /* External Class Implementation */
48 /************************************************************************/
49
50 #ifdef THORVG_GL_RASTER_SUPPORT
GlCanvas()51 GlCanvas::GlCanvas() : Canvas(GlRenderer::gen()), pImpl(nullptr)
52 #else
53 GlCanvas::GlCanvas() : Canvas(nullptr), pImpl(nullptr)
54 #endif
55 {
56 }
57
58
~GlCanvas()59 GlCanvas::~GlCanvas()
60 {
61 delete(pImpl);
62 }
63
64
target(int32_t id,uint32_t w,uint32_t h)65 Result GlCanvas::target(int32_t id, uint32_t w, uint32_t h) noexcept
66 {
67 #ifdef THORVG_GL_RASTER_SUPPORT
68 if (Canvas::pImpl->status != Status::Damaged && Canvas::pImpl->status != Status::Synced) {
69 return Result::InsufficientCondition;
70 }
71
72 //We know renderer type, avoid dynamic_cast for performance.
73 auto renderer = static_cast<GlRenderer*>(Canvas::pImpl->renderer);
74 if (!renderer) return Result::MemoryCorruption;
75
76 if (!renderer->target(id, w, h)) return Result::Unknown;
77 Canvas::pImpl->vport = {0, 0, (int32_t)w, (int32_t)h};
78 renderer->viewport(Canvas::pImpl->vport);
79
80 //Paints must be updated again with this new target.
81 Canvas::pImpl->status = Status::Damaged;
82
83 return Result::Success;
84 #endif
85 return Result::NonSupport;
86 }
87
88
gen()89 unique_ptr<GlCanvas> GlCanvas::gen() noexcept
90 {
91 #ifdef THORVG_GL_RASTER_SUPPORT
92 if (GlRenderer::init() <= 0) return nullptr;
93 return unique_ptr<GlCanvas>(new GlCanvas);
94 #endif
95 return nullptr;
96 }
97
98 #endif /* LV_USE_THORVG_INTERNAL */
99
100
