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Add initial support for WebGL2 uniform buffer functions

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Adds initial support for the following WebGL2 calls:

- bindBufferBase
- bindBufferRange
- getUniformIndices
- getUniformBlockIndex
- getActiveUniforms
- getActiveUniformBlockParameter
- getActiveUniformBlockName
- uniformBlockBinding

See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.16
This commit is contained in:
Mátyás Mustoha 2019-11-25 11:09:24 +01:00
parent f8c957dc1b
commit da94f8d0e7
33 changed files with 891 additions and 228 deletions
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40
components/canvas/webgl_limits.rs
View file

@ -65,14 +65,24 @@ impl GLLimitsDetect for GLLimits {
};
let (
max_uniform_block_size,
max_uniform_buffer_bindings,
min_program_texel_offset,
max_program_texel_offset,
max_transform_feedback_separate_attribs,
max_draw_buffers,
max_color_attachments,
max_combined_uniform_blocks,
max_combined_vertex_uniform_components,
max_combined_fragment_uniform_components,
max_vertex_uniform_blocks,
max_vertex_uniform_components,
max_fragment_uniform_blocks,
max_fragment_uniform_components,
uniform_buffer_offset_alignment,
);
if webgl_version == WebGLVersion::WebGL2 {
max_uniform_block_size = gl.get_integer(gl::MAX_UNIFORM_BLOCK_SIZE);
max_uniform_buffer_bindings = gl.get_integer(gl::MAX_UNIFORM_BUFFER_BINDINGS);
min_program_texel_offset = gl.get_integer(gl::MIN_PROGRAM_TEXEL_OFFSET);
max_program_texel_offset = gl.get_integer(gl::MAX_PROGRAM_TEXEL_OFFSET);
@ -81,14 +91,33 @@ impl GLLimitsDetect for GLLimits {
max_color_attachments = gl.get_integer(gl::MAX_COLOR_ATTACHMENTS);
max_draw_buffers = gl
.get_integer(gl::MAX_DRAW_BUFFERS)
.min(max_color_attachments)
.min(max_color_attachments);
max_combined_uniform_blocks = gl.get_integer(gl::MAX_COMBINED_UNIFORM_BLOCKS);
max_combined_vertex_uniform_components =
gl.get_integer(gl::MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS);
max_combined_fragment_uniform_components =
gl.get_integer(gl::MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS);
max_vertex_uniform_blocks = gl.get_integer(gl::MAX_VERTEX_UNIFORM_BLOCKS);
max_vertex_uniform_components = gl.get_integer(gl::MAX_VERTEX_UNIFORM_COMPONENTS);
max_fragment_uniform_blocks = gl.get_integer(gl::MAX_FRAGMENT_UNIFORM_BLOCKS);
max_fragment_uniform_components = gl.get_integer(gl::MAX_FRAGMENT_UNIFORM_COMPONENTS);
uniform_buffer_offset_alignment = gl.get_integer(gl::UNIFORM_BUFFER_OFFSET_ALIGNMENT);
} else {
max_uniform_block_size = 0;
max_uniform_buffer_bindings = 0;
min_program_texel_offset = 0;
max_program_texel_offset = 0;
max_transform_feedback_separate_attribs = 0;
max_color_attachments = 1;
max_draw_buffers = 1;
max_combined_uniform_blocks = 0;
max_combined_vertex_uniform_components = 0;
max_combined_fragment_uniform_components = 0;
max_vertex_uniform_blocks = 0;
max_vertex_uniform_components = 0;
max_fragment_uniform_blocks = 0;
max_fragment_uniform_components = 0;
uniform_buffer_offset_alignment = 0;
}
GLLimits {
@ -111,6 +140,15 @@ impl GLLimitsDetect for GLLimits {
max_program_texel_offset,
max_color_attachments,
max_draw_buffers,
max_uniform_block_size,
max_combined_uniform_blocks,
max_combined_vertex_uniform_components,
max_combined_fragment_uniform_components,
max_vertex_uniform_blocks,
max_vertex_uniform_components,
max_fragment_uniform_blocks,
max_fragment_uniform_components,
uniform_buffer_offset_alignment,
}
}
}