mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 23:50:19 +00:00
62092a329d
The Khronos description of a "non-negative binary integer" does not mean an unsigned type, just that it should not be negative.
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2022, Jelle Raaijmakers <jelle@gmta.nl>
|
|
* Copyright (c) 2022, cflip <cflip@cflip.net>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibGL/GLContext.h>
|
|
|
|
namespace GL {
|
|
|
|
void GLContext::gl_bind_buffer(GLenum target, GLuint buffer)
|
|
{
|
|
RETURN_WITH_ERROR_IF(target != GL_ARRAY_BUFFER && target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM);
|
|
RETURN_WITH_ERROR_IF(!m_buffer_name_allocator.has_allocated_name(buffer), GL_INVALID_VALUE);
|
|
|
|
auto& target_buffer = target == GL_ELEMENT_ARRAY_BUFFER ? m_element_array_buffer : m_array_buffer;
|
|
target_buffer = nullptr;
|
|
|
|
if (buffer != 0) {
|
|
auto it = m_allocated_buffers.find(buffer);
|
|
if (it != m_allocated_buffers.end()) {
|
|
auto buffer_object = it->value;
|
|
if (!buffer_object.is_null()) {
|
|
target_buffer = buffer_object;
|
|
}
|
|
}
|
|
|
|
if (!target_buffer) {
|
|
target_buffer = adopt_ref(*new Buffer());
|
|
m_allocated_buffers.set(buffer, target_buffer);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GLContext::gl_buffer_data(GLenum target, GLsizeiptr size, void const* data, GLenum usage)
|
|
{
|
|
RETURN_WITH_ERROR_IF(usage != GL_STREAM_DRAW
|
|
&& usage != GL_STREAM_READ
|
|
&& usage != GL_STREAM_COPY
|
|
&& usage != GL_STATIC_DRAW
|
|
&& usage != GL_STATIC_READ
|
|
&& usage != GL_STATIC_COPY
|
|
&& usage != GL_DYNAMIC_DRAW
|
|
&& usage != GL_DYNAMIC_READ
|
|
&& usage != GL_DYNAMIC_COPY,
|
|
GL_INVALID_ENUM);
|
|
RETURN_WITH_ERROR_IF(target != GL_ARRAY_BUFFER && target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM);
|
|
|
|
auto& target_buffer = target == GL_ELEMENT_ARRAY_BUFFER ? m_element_array_buffer : m_array_buffer;
|
|
RETURN_WITH_ERROR_IF(!target_buffer, GL_INVALID_OPERATION);
|
|
|
|
RETURN_WITH_ERROR_IF(target_buffer->set_data(data, size).is_error(), GL_OUT_OF_MEMORY);
|
|
}
|
|
|
|
void GLContext::gl_buffer_sub_data(GLenum target, GLintptr offset, GLsizeiptr size, void const* data)
|
|
{
|
|
RETURN_WITH_ERROR_IF(target != GL_ARRAY_BUFFER && target != GL_ELEMENT_ARRAY_BUFFER, GL_INVALID_ENUM);
|
|
RETURN_WITH_ERROR_IF(offset < 0, GL_INVALID_VALUE);
|
|
// FIXME: Support buffer storage mutability flags.
|
|
|
|
auto& target_buffer = target == GL_ELEMENT_ARRAY_BUFFER ? m_element_array_buffer : m_array_buffer;
|
|
RETURN_WITH_ERROR_IF(!target_buffer, GL_INVALID_OPERATION);
|
|
RETURN_WITH_ERROR_IF(static_cast<size_t>(offset + size) > target_buffer->size(), GL_INVALID_VALUE);
|
|
|
|
target_buffer->replace_data(data, offset, size);
|
|
}
|
|
|
|
void GLContext::gl_delete_buffers(GLsizei n, GLuint const* buffers)
|
|
{
|
|
RETURN_WITH_ERROR_IF(n < 0, GL_INVALID_VALUE);
|
|
|
|
for (auto i = 0; i < n; i++) {
|
|
GLuint name = buffers[i];
|
|
if (name == 0)
|
|
continue;
|
|
|
|
auto buffer_object = m_allocated_buffers.find(name);
|
|
if (buffer_object == m_allocated_buffers.end() || buffer_object->value.is_null())
|
|
continue;
|
|
|
|
Buffer* buffer = buffer_object->value;
|
|
|
|
if (m_array_buffer == buffer)
|
|
m_array_buffer = nullptr;
|
|
|
|
if (m_element_array_buffer == buffer)
|
|
m_element_array_buffer = nullptr;
|
|
|
|
m_buffer_name_allocator.free(name);
|
|
m_allocated_buffers.remove(name);
|
|
}
|
|
}
|
|
|
|
void GLContext::gl_gen_buffers(GLsizei n, GLuint* buffers)
|
|
{
|
|
RETURN_WITH_ERROR_IF(n < 0, GL_INVALID_VALUE);
|
|
|
|
m_buffer_name_allocator.allocate(n, buffers);
|
|
|
|
// Initialize all buffer names with a nullptr
|
|
for (auto i = 0; i < n; ++i) {
|
|
GLuint name = buffers[i];
|
|
m_allocated_buffers.set(name, nullptr);
|
|
}
|
|
}
|
|
|
|
}
|