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LibGL: Remove DeprecatedString usage

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We only use it for the extension string, which we now convert into a
`ByteBuffer` object containing the null-terminated bytes :^)
This commit is contained in:
Jelle Raaijmakers 2023-01-30 16:08:50 +01:00 committed by Tim Flynn
parent 6a50fb465c
commit e3f8ac2c05
Notes: sideshowbarker 2024-07-17 00:58:25 +09:00 
Author: https://github.com/gmta
Commit: https://github.com/SerenityOS/serenity/commit/e3f8ac2c05
Pull-request: https://github.com/SerenityOS/serenity/pull/17250
2 changed files with 23 additions and 15 deletions
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31
Userland/Libraries/LibGL/GLContext.cpp
View File

@ -1,12 +1,13 @@
/*
* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2022, Jelle Raaijmakers <jelle@gmta.nl>
* Copyright (c) 2022-2023, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <AK/StringBuilder.h>
#include <AK/Vector.h>
#include <LibGL/GLContext.h>
#include <LibGL/Image.h>
@ -69,7 +70,7 @@ GLContext::GLContext(RefPtr<GPU::Driver> driver, NonnullOwnPtr<GPU::Device> devi
texture_coordinate_generation[3].eye_plane_coefficients = { 0.f, 0.f, 0.f, 0.f };
}
build_extension_string();
m_extensions = build_extension_string().release_value_but_fixme_should_propagate_errors();
}
GLContext::~GLContext()
@ -194,7 +195,7 @@ GLubyte const* GLContext::gl_get_string(GLenum name)
case GL_VERSION:
return reinterpret_cast<GLubyte const*>("1.5");
case GL_EXTENSIONS:
return reinterpret_cast<GLubyte const*>(m_extensions.characters());
return reinterpret_cast<GLubyte const*>(m_extensions.data());
case GL_SHADING_LANGUAGE_VERSION:
return reinterpret_cast<GLubyte const*>("0.0");
default:
@ -923,31 +924,37 @@ void GLContext::sync_device_config()
sync_clip_planes();
}
void GLContext::build_extension_string()
ErrorOr<ByteBuffer> GLContext::build_extension_string()
{
Vector<StringView> extensions;
Vector<StringView, 6> extensions;
// FIXME: npot texture support became a required core feature starting with OpenGL 2.0 (https://www.khronos.org/opengl/wiki/NPOT_Texture)
// Ideally we would verify if the selected device adheres to the requested OpenGL context version before context creation
// and refuse to create a context if it doesn't.
if (m_device_info.supports_npot_textures)
extensions.append("GL_ARB_texture_non_power_of_two"sv);
TRY(extensions.try_append("GL_ARB_texture_non_power_of_two"sv));
if (m_device_info.num_texture_units > 1)
extensions.append("GL_ARB_multitexture"sv);
TRY(extensions.try_append("GL_ARB_multitexture"sv));
if (m_device_info.supports_texture_clamp_to_edge)
extensions.append("GL_EXT_texture_edge_clamp"sv);
TRY(extensions.try_append("GL_EXT_texture_edge_clamp"sv));
if (m_device_info.supports_texture_env_add) {
extensions.append("GL_ARB_texture_env_add"sv);
extensions.append("GL_EXT_texture_env_add"sv);
TRY(extensions.try_append("GL_ARB_texture_env_add"sv));
TRY(extensions.try_append("GL_EXT_texture_env_add"sv));
}
if (m_device_info.max_texture_lod_bias > 0.f)
extensions.append("GL_EXT_texture_lod_bias"sv);
TRY(extensions.try_append("GL_EXT_texture_lod_bias"sv));
m_extensions = DeprecatedString::join(' ', extensions);
StringBuilder string_builder {};
TRY(string_builder.try_join(' ', extensions));
// Create null-terminated string
auto extensions_bytes = string_builder.to_byte_buffer();
TRY(extensions_bytes.try_append(0));
return extensions_bytes;
}
ErrorOr<NonnullOwnPtr<GLContext>> create_context(Gfx::Bitmap& bitmap)

7
Userland/Libraries/LibGL/GLContext.h
View File

@ -1,13 +1,14 @@
/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
* Copyright (c) 2021-2022, Jesse Buhagiar <jooster669@gmail.com>
* Copyright (c) 2022, Jelle Raaijmakers <jelle@gmta.nl>
* Copyright (c) 2022-2023, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/ByteBuffer.h>
#include <AK/Debug.h>
#include <AK/HashMap.h>
#include <AK/NonnullOwnPtr.h>
@ -248,7 +249,7 @@ private:
void sync_stencil_configuration();
void sync_clip_planes();
void build_extension_string();
ErrorOr<ByteBuffer> build_extension_string();
template<typename T>
T* store_in_listing(T value)
@ -562,7 +563,7 @@ private:
GLenum m_color_material_mode { GL_AMBIENT_AND_DIFFUSE };
// GL Extension string
DeprecatedString m_extensions;
ByteBuffer m_extensions;
// Buffer objects
NameAllocator m_buffer_name_allocator;