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LibGL: Make GL::create_context fallible

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Propagate errors in places that are already set up to handle them, like
WebGLRenderingContext and the Tubes demo, and convert other callers
to using MUST.
This commit is contained in:
Andrew Kaster 2022-09-16 05:58:30 -06:00 committed by Andreas Kling
parent 7e5080ea53
commit 8ed5ed3ec0
Notes: sideshowbarker 2024-07-18 00:54:03 +09:00 
Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/8ed5ed3ec0
Pull-request: https://github.com/SerenityOS/serenity/pull/15260
7 changed files with 14 additions and 20 deletions
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2
Tests/LibGL/TestAPI.cpp
View file

@ -11,7 +11,7 @@
static NonnullOwnPtr<GL::GLContext> create_testing_context()
{
auto bitmap = MUST(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { 1, 1 }));
auto context = GL::create_context(*bitmap);
auto context = MUST(GL::create_context(*bitmap));
GL::make_context_current(context);
return context;
}

2
Tests/LibGL/TestRender.cpp
View file

@ -24,7 +24,7 @@
static NonnullOwnPtr<GL::GLContext> create_testing_context(int width, int height)
{
auto bitmap = MUST(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { width, height }));
auto context = GL::create_context(*bitmap);
auto context = MUST(GL::create_context(*bitmap));
GL::make_context_current(context);
// Assume some defaults for our testing contexts

2
Userland/Applications/3DFileViewer/main.cpp
View file

@ -59,7 +59,7 @@ private:
constexpr u16 RENDER_WIDTH = 640;
constexpr u16 RENDER_HEIGHT = 480;
m_bitmap = Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { RENDER_WIDTH, RENDER_HEIGHT }).release_value_but_fixme_should_propagate_errors();
m_context = GL::create_context(*m_bitmap);
m_context = MUST(GL::create_context(*m_bitmap));
start_timer(20);

2
Userland/Demos/Tubes/Tubes.cpp
View file

@ -125,7 +125,7 @@ void Tubes::choose_new_direction_for_tube(Tube& tube)
ErrorOr<void> Tubes::create_buffer(Gfx::IntSize size)
{
m_bitmap = TRY(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, size));
m_gl_context = GL::create_context(*m_bitmap);
m_gl_context = TRY(GL::create_context(*m_bitmap));
return {};
}

6
Userland/Libraries/LibGL/GLContext.cpp
View file

@ -921,11 +921,11 @@ void GLContext::build_extension_string()
m_extensions = String::join(' ', extensions);
}
NonnullOwnPtr<GLContext> create_context(Gfx::Bitmap& bitmap)
ErrorOr<NonnullOwnPtr<GLContext>> create_context(Gfx::Bitmap& bitmap)
{
// FIXME: Make driver selectable. This is currently hardcoded to LibSoftGPU
auto driver = MUST(GPU::Driver::try_create("softgpu"sv));
auto device = MUST(driver->try_create_device(bitmap.size()));
auto driver = TRY(GPU::Driver::try_create("softgpu"sv));
auto device = TRY(driver->try_create_device(bitmap.size()));
auto context = make<GLContext>(driver, move(device), bitmap);
dbgln_if(GL_DEBUG, "GL::create_context({}) -> {:p}", bitmap.size(), context.ptr());

2
Userland/Libraries/LibGL/GLContext.h
View file

@ -532,7 +532,7 @@ private:
String m_extensions;
};
NonnullOwnPtr<GLContext> create_context(Gfx::Bitmap&);
ErrorOr<NonnullOwnPtr<GLContext>> create_context(Gfx::Bitmap&);
void make_context_current(GLContext*);
void present_context(GLContext*);

18
Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.cpp
View file

@ -41,18 +41,12 @@ JS::ThrowCompletionOr<JS::GCPtr<WebGLRenderingContext>> WebGLRenderingContext::c
return JS::GCPtr<WebGLRenderingContext> { nullptr };
}
#ifndef __serenity__
// FIXME: Make WebGL work on other platforms.
(void)window;
(void)context_attributes;
dbgln("FIXME: WebGL not supported on the current platform");
fire_webgl_context_creation_error(canvas_element);
return JS::GCPtr<WebGLRenderingContext> { nullptr };
#else
// FIXME: LibGL currently doesn't propagate context creation errors.
auto context = GL::create_context(*canvas_element.bitmap());
return window.heap().allocate<WebGLRenderingContext>(window.realm(), window, canvas_element, move(context), context_attributes, context_attributes);
#endif
auto context_or_error = GL::create_context(*canvas_element.bitmap());
if (context_or_error.is_error()) {
fire_webgl_context_creation_error(canvas_element);
return JS::GCPtr<WebGLRenderingContext> { nullptr };
}
return window.heap().allocate<WebGLRenderingContext>(window.realm(), window, canvas_element, context_or_error.release_value(), context_attributes, context_attributes);
}
WebGLRenderingContext::WebGLRenderingContext(HTML::Window& window, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)