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LibWeb/WebGL2: Implement uniformMatrix{2,3,4}fv

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Luke Wilde 2024-12-13 14:06:04 +00:00 • committed by Alexander Kalenik
parent 3c60510896
commit bd1cc239df
Notes: github-actions[bot] 2024-12-14 08:10:43 +00:00
2 changed files with 38 additions and 12 deletions
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6
Libraries/LibWeb/WebGL/WebGL2RenderingContextOverloads.idl
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@ -53,9 +53,9 @@ interface mixin WebGL2RenderingContextOverloads {
undefined uniform3iv(WebGLUniformLocation? location, Int32List v, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
undefined uniform4iv(WebGLUniformLocation? location, Int32List v, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
[FIXME] undefined uniformMatrix2fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
[FIXME] undefined uniformMatrix3fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
[FIXME] undefined uniformMatrix4fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
undefined uniformMatrix2fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
undefined uniformMatrix3fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
undefined uniformMatrix4fv(WebGLUniformLocation? location, GLboolean transpose, Float32List data, optional unsigned long long srcOffset = 0, optional GLuint srcLength = 0);
// Reading back pixels
// WebGL1:

44
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateWebGLRenderingContext.cpp
View file

@ -687,19 +687,45 @@ public:
if (function.name.starts_with("uniformMatrix"sv)) {
auto number_of_matrix_elements = function.name.substring_view(13, 1);
function_impl_generator.set("number_of_matrix_elements", number_of_matrix_elements);
if (webgl_version == 1) {
function_impl_generator.set("array_argument_name", "value");
} else {
function_impl_generator.set("array_argument_name", "data");
}
function_impl_generator.append(R"~~~(
auto matrix_size = @number_of_matrix_elements@ * @number_of_matrix_elements@;
if (value.has<Vector<float>>()) {
auto& data = value.get<Vector<float>>();
glUniformMatrix@number_of_matrix_elements@fv(location->handle(), data.size() / matrix_size, transpose, data.data());
return;
float const* raw_data = nullptr;
u64 count = 0;
if (@array_argument_name@.has<Vector<float>>()) {
auto& vector_data = @array_argument_name@.get<Vector<float>>();
raw_data = vector_data.data();
count = vector_data.size() / matrix_size;
} else {
auto& typed_array_base = static_cast<JS::TypedArrayBase&>(*@array_argument_name@.get<GC::Root<WebIDL::BufferSource>>()->raw_object());
auto& float32_array = verify_cast<JS::Float32Array>(typed_array_base);
raw_data = float32_array.data().data();
count = float32_array.array_length().length() / matrix_size;
}
)~~~");
if (webgl_version == 2) {
function_impl_generator.append(R"~~~(
raw_data += src_offset;
if (src_length == 0) {
count -= src_offset;
}
auto& typed_array_base = static_cast<JS::TypedArrayBase&>(*value.get<GC::Root<WebIDL::BufferSource>>()->raw_object());
auto& float32_array = verify_cast<JS::Float32Array>(typed_array_base);
float const* data = float32_array.data().data();
auto count = float32_array.array_length().length() / matrix_size;
glUniformMatrix@number_of_matrix_elements@fv(location->handle(), count, transpose, data);
if (src_offset + src_length <= count) {
set_error(GL_INVALID_VALUE);
return;
}
)~~~");
}
function_impl_generator.append(R"~~~(
glUniformMatrix@number_of_matrix_elements@fv(location->handle(), count, transpose, raw_data);
)~~~");
continue;
}