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LibWeb: Generate WebGLRenderingContext implementation
This commit is contained in:
Aliaksandr Kalenik
Alexander Kalenik
parent
45e0f50463
commit
e2e54dccc3
Notes:
github-actions[bot]
2024-12-03 22:37:17 +00:00
Author: https://github.com/kalenikaliaksandr
Commit: e2e54dccc3
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2688
Reviewed-by: https://github.com/ADKaster ✅
10 changed files with 316 additions and 261 deletions
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@ -13,9 +13,8 @@
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#include <LibWeb/HTML/TraversableNavigable.h>
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#include <LibWeb/Painting/Paintable.h>
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#include <LibWeb/WebGL/EventNames.h>
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#include <LibWeb/WebGL/WebGLBuffer.h>
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#include <LibWeb/WebGL/OpenGLContext.h>
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#include <LibWeb/WebGL/WebGLContextEvent.h>
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#include <LibWeb/WebGL/WebGLProgram.h>
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#include <LibWeb/WebGL/WebGLRenderingContext.h>
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#include <LibWeb/WebGL/WebGLShader.h>
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#include <LibWeb/WebIDL/Buffers.h>
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@ -27,13 +26,6 @@ namespace Web::WebGL {
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GC_DEFINE_ALLOCATOR(WebGLRenderingContext);
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#define RETURN_WITH_WEBGL_ERROR_IF(condition, error) \
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if (condition) { \
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dbgln_if(WEBGL_CONTEXT_DEBUG, "{}(): error {:#x}", __func__, error); \
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set_error(error); \
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return; \
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#fire-a-webgl-context-event
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static void fire_webgl_context_event(HTML::HTMLCanvasElement& canvas_element, FlyString const& type)
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{
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@ -59,7 +51,6 @@ JS::ThrowCompletionOr<GC::Ptr<WebGLRenderingContext>> WebGLRenderingContext::cre
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auto skia_backend_context = canvas_element.navigable()->traversable_navigable()->skia_backend_context();
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auto context = OpenGLContext::create(*skia_backend_context);
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if (!context) {
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fire_webgl_context_creation_error(canvas_element);
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return GC::Ptr<WebGLRenderingContext> { nullptr };
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@ -72,7 +63,7 @@ JS::ThrowCompletionOr<GC::Ptr<WebGLRenderingContext>> WebGLRenderingContext::cre
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WebGLRenderingContext::WebGLRenderingContext(JS::Realm& realm, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<OpenGLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
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: PlatformObject(realm)
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, m_context(move(context))
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, WebGLRenderingContextImpl(realm, move(context))
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, m_canvas_element(canvas_element)
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, m_context_creation_parameters(context_creation_parameters)
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, m_actual_context_parameters(actual_context_parameters)
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@ -107,7 +98,7 @@ void WebGLRenderingContext::present()
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// This default behavior can be changed by setting the preserveDrawingBuffer attribute of the WebGLContextAttributes object.
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// If this flag is true, the contents of the drawing buffer shall be preserved until the author either clears or overwrites them."
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if (!m_context_creation_parameters.preserve_drawing_buffer) {
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m_context->clear_buffer_to_default_values();
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context().clear_buffer_to_default_values();
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}
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}
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@ -142,7 +133,7 @@ bool WebGLRenderingContext::is_context_lost() const
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void WebGLRenderingContext::set_size(Gfx::IntSize const& size)
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{
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m_context->set_size(size);
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context().set_size(size);
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}
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void WebGLRenderingContext::reset_to_default_state()
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@ -151,213 +142,12 @@ void WebGLRenderingContext::reset_to_default_state()
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RefPtr<Gfx::PaintingSurface> WebGLRenderingContext::surface()
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{
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return m_context->surface();
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return context().surface();
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}
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void WebGLRenderingContext::allocate_painting_surface_if_needed()
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{
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m_context->allocate_painting_surface_if_needed();
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}
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Optional<Vector<String>> WebGLRenderingContext::get_supported_extensions() const
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{
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if (m_context_lost)
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return Optional<Vector<String>> {};
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::get_supported_extensions()");
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// FIXME: We don't currently support any extensions.
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return Vector<String> {};
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}
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JS::Object* WebGLRenderingContext::get_extension(String const& name) const
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{
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if (m_context_lost)
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return nullptr;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::get_extension(name='{}')", name);
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// FIXME: We don't currently support any extensions.
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return nullptr;
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}
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void WebGLRenderingContext::active_texture(GLenum texture)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::active_texture(texture={:#08x})", texture);
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}
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void WebGLRenderingContext::clear(GLbitfield mask)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::clear(mask={:#08x})", mask);
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// FIXME: This should only be done if this is targeting the front buffer.
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needs_to_present();
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}
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void WebGLRenderingContext::clear_color(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::clear_color(red={}, green={}, blue={}, alpha={})", red, green, blue, alpha);
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}
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void WebGLRenderingContext::clear_depth(GLclampf depth)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::clear_depth(depth={})", depth);
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}
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void WebGLRenderingContext::clear_stencil(GLint s)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::clear_stencil(s={:#08x})", s);
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}
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void WebGLRenderingContext::color_mask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::color_mask(red={}, green={}, blue={}, alpha={})", red, green, blue, alpha);
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}
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void WebGLRenderingContext::cull_face(GLenum mode)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::cull_face(mode={:#08x})", mode);
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}
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void WebGLRenderingContext::depth_func(GLenum func)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::depth_func(func={:#08x})", func);
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}
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void WebGLRenderingContext::depth_mask(GLboolean mask)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::depth_mask(mask={})", mask);
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}
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void WebGLRenderingContext::depth_range(GLclampf z_near, GLclampf z_far)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::depth_range(z_near={}, z_far={})", z_near, z_far);
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#VIEWPORT_DEPTH_RANGE
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// "The WebGL API does not support depth ranges with where the near plane is mapped to a value greater than that of the far plane. A call to depthRange will generate an INVALID_OPERATION error if zNear is greater than zFar."
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RETURN_WITH_WEBGL_ERROR_IF(z_near > z_far, GL_INVALID_OPERATION);
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}
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void WebGLRenderingContext::finish()
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::finish()");
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}
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void WebGLRenderingContext::flush()
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::flush()");
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}
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void WebGLRenderingContext::front_face(GLenum mode)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::front_face(mode={:#08x})", mode);
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}
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GLenum WebGLRenderingContext::get_error()
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{
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::get_error()");
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// "If the context's webgl context lost flag is set, returns CONTEXT_LOST_WEBGL the first time this method is called. Afterward, returns NO_ERROR until the context has been restored."
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// FIXME: The plan here is to make the context lost handler unconditionally set m_error to CONTEXT_LOST_WEBGL, which we currently do not have.
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// The idea for the unconditional set is that any potentially error generating functions will not execute when the context is lost.
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if (m_error != GL_NO_ERROR || m_context_lost) {
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auto last_error = m_error;
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m_error = GL_NO_ERROR;
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return last_error;
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}
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return glGetError();
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}
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void WebGLRenderingContext::line_width(GLfloat width)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::line_width(width={})", width);
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#NAN_LINE_WIDTH
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// "In the WebGL API, if the width parameter passed to lineWidth is set to NaN, an INVALID_VALUE error is generated and the line width is not changed."
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RETURN_WITH_WEBGL_ERROR_IF(isnan(width), GL_INVALID_VALUE);
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}
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void WebGLRenderingContext::polygon_offset(GLfloat factor, GLfloat units)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::polygon_offset(factor={}, units={})", factor, units);
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}
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void WebGLRenderingContext::scissor(GLint x, GLint y, GLsizei width, GLsizei height)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::scissor(x={}, y={}, width={}, height={})", x, y, width, height);
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}
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void WebGLRenderingContext::stencil_op(GLenum fail, GLenum zfail, GLenum zpass)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::stencil_op(fail={:#08x}, zfail={:#08x}, zpass={:#08x})", fail, zfail, zpass);
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}
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void WebGLRenderingContext::stencil_op_separate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::stencil_op_separate(face={:#08x}, fail={:#08x}, zfail={:#08x}, zpass={:#08x})", face, fail, zfail, zpass);
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}
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void WebGLRenderingContext::viewport(GLint x, GLint y, GLsizei width, GLsizei height)
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{
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if (m_context_lost)
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return;
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dbgln_if(WEBGL_CONTEXT_DEBUG, "WebGLRenderingContext::viewport(x={}, y={}, width={}, height={})", x, y, width, height);
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context().allocate_painting_surface_if_needed();
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}
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}
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