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https://github.com/encounter/dawn-cmake.git
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70102b7190
This is enough to get all of the sample apps running on a conformant ES 3.1 implementation, such as ANGLE/Vk or NVidia's OpenGL ES Linux driver. Implements a new opengl::AdapterDiscoveryOptionsES subclass to specify its creation at adapter discovery time. Adds a "-b opengles" command-line flag to the code samples. Asserts on a call to glShaderStorageBlockBinding() on ES. Works around missing indexed draw buffers support by asserting when a non-0 color attachment is specified. Works around missing glClearTexSubImage() by asserting. :/ These will likely require front-end validation. BUG=dawn:580 Change-Id: I4a4240ca695a22388c55073fd2aee0323cd4afc9 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/31000 Reviewed-by: Stephen White <senorblanco@chromium.org> Commit-Queue: Stephen White <senorblanco@chromium.org>
89 lines
3.4 KiB
C++
89 lines
3.4 KiB
C++
// Copyright 2020 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "utils/GLFWUtils.h"
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#include "GLFW/glfw3.h"
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#include "common/Platform.h"
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#include <cstdlib>
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#if defined(DAWN_PLATFORM_WINDOWS)
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# define GLFW_EXPOSE_NATIVE_WIN32
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#elif defined(DAWN_USE_X11)
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# define GLFW_EXPOSE_NATIVE_X11
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#endif
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#include "GLFW/glfw3native.h"
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namespace utils {
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void SetupGLFWWindowHintsForBackend(wgpu::BackendType type) {
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if (type == wgpu::BackendType::OpenGL) {
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// Ask for OpenGL 4.4 which is what the GL backend requires for compute shaders and
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// texture views.
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 4);
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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} else if (type == wgpu::BackendType::OpenGLES) {
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
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glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
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glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_EGL_CONTEXT_API);
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} else {
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// Without this GLFW will initialize a GL context on the window, which prevents using
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// the window with other APIs (by crashing in weird ways).
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glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
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}
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}
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wgpu::Surface CreateSurfaceForWindow(wgpu::Instance instance, GLFWwindow* window) {
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std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor =
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SetupWindowAndGetSurfaceDescriptorForTesting(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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#if defined(DAWN_PLATFORM_WINDOWS)
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std::unique_ptr<wgpu::ChainedStruct> SetupWindowAndGetSurfaceDescriptorForTesting(
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GLFWwindow* window) {
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std::unique_ptr<wgpu::SurfaceDescriptorFromWindowsHWND> desc =
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std::make_unique<wgpu::SurfaceDescriptorFromWindowsHWND>();
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desc->hwnd = glfwGetWin32Window(window);
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desc->hinstance = GetModuleHandle(nullptr);
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return std::move(desc);
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}
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#elif defined(DAWN_USE_X11)
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std::unique_ptr<wgpu::ChainedStruct> SetupWindowAndGetSurfaceDescriptorForTesting(
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GLFWwindow* window) {
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std::unique_ptr<wgpu::SurfaceDescriptorFromXlib> desc =
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std::make_unique<wgpu::SurfaceDescriptorFromXlib>();
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desc->display = glfwGetX11Display();
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desc->window = glfwGetX11Window(window);
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return std::move(desc);
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}
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#elif defined(DAWN_ENABLE_BACKEND_METAL)
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// SetupWindowAndGetSurfaceDescriptorForTesting defined in GLFWUtils_metal.mm
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#else
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std::unique_ptr<wgpu::ChainedStruct> SetupWindowAndGetSurfaceDescriptorForTesting(GLFWwindow*) {
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return nullptr;
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}
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#endif
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} // namespace utils
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