1 /*
2 * Copyright (c) 2023 - 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_WG_RASTER_SUPPORT
29 #include "tvgWgRenderer.h"
30 #endif
31
32 /************************************************************************/
33 /* Internal Class Implementation */
34 /************************************************************************/
35
36 struct WgCanvas::Impl
37 {
38 };
39
40
41 /************************************************************************/
42 /* External Class Implementation */
43 /************************************************************************/
44
45 #ifdef THORVG_WG_RASTER_SUPPORT
WgCanvas()46 WgCanvas::WgCanvas() : Canvas(WgRenderer::gen()), pImpl(nullptr)
47 #else
48 WgCanvas::WgCanvas() : Canvas(nullptr), pImpl(nullptr)
49 #endif
50 {
51 }
52
53
~WgCanvas()54 WgCanvas::~WgCanvas()
55 {
56 #ifdef THORVG_WG_RASTER_SUPPORT
57 auto renderer = static_cast<WgRenderer*>(Canvas::pImpl->renderer);
58 renderer->target(nullptr, 0, 0);
59 #endif
60 }
61
62
target(void * instance,void * surface,uint32_t w,uint32_t h,void * device)63 Result WgCanvas::target(void* instance, void* surface, uint32_t w, uint32_t h, void* device) noexcept
64 {
65 #ifdef THORVG_WG_RASTER_SUPPORT
66 if (Canvas::pImpl->status != Status::Damaged && Canvas::pImpl->status != Status::Synced) {
67 return Result::InsufficientCondition;
68 }
69
70 if (!instance || !surface || (w == 0) || (h == 0)) return Result::InvalidArguments;
71
72 //We know renderer type, avoid dynamic_cast for performance.
73 auto renderer = static_cast<WgRenderer*>(Canvas::pImpl->renderer);
74 if (!renderer) return Result::MemoryCorruption;
75
76 if (!renderer->target((WGPUInstance)instance, (WGPUSurface)surface, w, h, (WGPUDevice)device)) 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<WgCanvas> WgCanvas::gen() noexcept
90 {
91 #ifdef THORVG_WG_RASTER_SUPPORT
92 return unique_ptr<WgCanvas>(new WgCanvas);
93 #endif
94 return nullptr;
95 }
96
97 #endif /* LV_USE_THORVG_INTERNAL */
98
99
