80 lines
3.4 KiB
C++
80 lines
3.4 KiB
C++
//
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// Created by Vicente Ferrari Smith on 06.03.26.
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//
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// Copyright 2025 The Dawn & Tint Authors
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#if !defined(EMSCRIPTEN)
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#error "utils_emscripten.cpp: This file requires EMSCRIPTEN to be defined."
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#endif // !defined(EMSCRIPTEN)
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#include <memory>
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#include "GLFW/glfw3.h"
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#include "emscripten/emscripten.h"
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#include "webgpu/webgpu_glfw.h"
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WGPU_GLFW_EXPORT WGPUSurface wgpuGlfwCreateSurfaceForWindow(const WGPUInstance instance,
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GLFWwindow* window) {
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wgpu::Surface s = wgpu::glfw::CreateSurfaceForWindow(instance, window);
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return s.MoveToCHandle();
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}
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namespace wgpu::glfw {
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wgpu::Surface CreateSurfaceForWindow(const wgpu::Instance& instance, GLFWwindow* window) {
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auto chainedDescriptor = SetupWindowAndGetSurfaceDescriptor(window);
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wgpu::SurfaceDescriptor descriptor;
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descriptor.nextInChain = chainedDescriptor.get();
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wgpu::Surface surface = instance.CreateSurface(&descriptor);
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return surface;
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}
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std::unique_ptr<wgpu::ChainedStruct, void (*)(wgpu::ChainedStruct*)>
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SetupWindowAndGetSurfaceDescriptor(GLFWwindow* window) {
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if (glfwGetWindowAttrib(window, GLFW_CLIENT_API) != GLFW_NO_API) {
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emscripten_log(EM_LOG_ERROR,
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"GL context was created on the window. Disable context creation by "
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"setting the GLFW_CLIENT_API hint to GLFW_NO_API.");
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return {nullptr, [](wgpu::ChainedStruct*) {}};
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}
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wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector* desc =
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new wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector();
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// Map "!canvas" CSS selector to the canvas held in the Module.canvas object.
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EM_ASM({self.specialHTMLTargets && (specialHTMLTargets["!canvas"] = Module.canvas)});
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desc->selector = "!canvas";
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return {desc, [](wgpu::ChainedStruct* desc) {
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delete reinterpret_cast<wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector*>(desc);
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}};
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}
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} // namespace wgpu::glfw
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