There's one failure still, where a deleted program should still be
considered to be a program until it's unbound. However, I recently
made it so that we unbind at delete time, and we may need to partially
back that change out.
Impl copyTexImage2D and copyTexSubImage2D
- [X] `./mach build` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
Implement copyTexImage2D and copyTexSubImage2D for WebGLRenderingContext. Feedback would be appreciated. I did my best to follow the [spec](https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8). Please let me know if I missed anything. I couldn't find tests for this. Let me know if I should create one. I'm more than happy to do so. As always any feedback, comments,or critiques are very welcome 😄
Part of #10209
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This is a large-ish refactor of the Texture2D code, but it should be
easier to read and of course more correct.
I tried to annotate every error condition with a spec paragraph.
I was going to implement Uniform4fv with sequences, (since it
practically implemented), but we can't until we support Float32Array
args because codegen doesn't know how tu differenciate between both.
This commit implements WebGL's:
* cullFace
* frontFace
* enable
* disable
* depthMask
* colorMask
* clearDepth
* clearStencil
* depthFunc
* depthRange
* hint
* lineWidth
* pixelStorei
* polygonOffset
* texParameteri
* texParameterf
* texImage2D (partially)
It inlines a lot of OpenGL calls to keep the file
`components/canvas/webgl_paint_task.rs` as small as possible while
keeping readability.
It also improves error detection on previous calls, and sets node damage
on the canvas in the drawing calls.
It adds a `TexImage2D` reftest, even though it's not enabled because:
* WebGL paints the image when it loads (asynchronously), so the reftest doesn't wait for it and it finishes early
* If we change the source for the base64 src of the image it works as expected in non-headless mode, but the test harness locks
This improves the encapsulation and consistency in our WebGL
implementation.
Also allows to implement new methods such as `getShaderSource()`.
It will also allow us to use `delete()` in the destructors of them (note
that we will want to keep track of them from the context).
This commit implements:
* WebGLFramebuffer
* WebGLRenderbuffer
* WebGLTexture
And adds the following methods to `WebGLRenderingContext`:
* create{Texture,Framebuffer,Renderbuffer}
* bind{Texture,Framebuffer,Renderbuffer}
* destroy{Buffer,Texture,Framebuffer,Renderbuffer}
Fixes:
* WebGLUniform location shouldn't inherit from WebGLObject.
Known Issues:
* WebGL objects have to be destroyed on drop, we may want to keep a reference to the context, or maybe a clone of the renderer to achieve this
Also refactors a huge part of the current implementation, to allow
failing on creation of different WebGL objects.
Blocked on https://github.com/servo/gleam/pull/22
A reftest for most of the added functionality is not doable right now,
we need a few more functions in order to upload a texture, for example.
This implements the `canvas`, `drawingBufferHeight` and
`drawingBufferWidth` getters to `WebGLRenderingContext`, and an initial
version of `getParameter`.
