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Implement the basic WebGL2 buffer data operations

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Adds support for `bufferData`, `bufferSubData`, `copyBufferSubData`
and `getBufferSubData`.

Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.3
This commit is contained in:
Mátyás Mustoha 2019-10-17 11:34:06 +02:00
parent f626355b67
commit 4050b7f9ec
13 changed files with 510 additions and 197 deletions
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16
components/script/dom/webidls/WebGL2RenderingContext.webidl
View file

@ -299,18 +299,18 @@ interface mixin WebGL2RenderingContextBase
void bufferData(GLenum target, GLsizeiptr size, GLenum usage);
void bufferSubData(GLenum target, GLintptr dstByteOffset, /*[AllowShared]*/ BufferSource srcData);
// WebGL2:
// void bufferData(GLenum target, [AllowShared] ArrayBufferView srcData, GLenum usage, GLuint srcOffset,
// optional GLuint length = 0);
// void bufferSubData(GLenum target, GLintptr dstByteOffset, [AllowShared] ArrayBufferView srcData,
// GLuint srcOffset, optional GLuint length = 0);
void bufferData(GLenum target, /*[AllowShared]*/ ArrayBufferView srcData, GLenum usage, GLuint srcOffset,
optional GLuint length = 0);
void bufferSubData(GLenum target, GLintptr dstByteOffset, /*[AllowShared]*/ ArrayBufferView srcData,
GLuint srcOffset, optional GLuint length = 0);
// void copyBufferSubData(GLenum readTarget, GLenum writeTarget, GLintptr readOffset,
// GLintptr writeOffset, GLsizeiptr size);
void copyBufferSubData(GLenum readTarget, GLenum writeTarget, GLintptr readOffset,
GLintptr writeOffset, GLsizeiptr size);
// MapBufferRange, in particular its read-only and write-only modes,
// can not be exposed safely to JavaScript. GetBufferSubData
// replaces it for the purpose of fetching data back from the GPU.
// void getBufferSubData(GLenum target, GLintptr srcByteOffset, [AllowShared] ArrayBufferView dstBuffer,
// optional GLuint dstOffset = 0, optional GLuint length = 0);
void getBufferSubData(GLenum target, GLintptr srcByteOffset, /*[AllowShared]*/ ArrayBufferView dstBuffer,
optional GLuint dstOffset = 0, optional GLuint length = 0);
/* Framebuffer objects */
// void blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,