65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
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/*
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* Copyright (c) 2026, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <GLES2/gl2.h>
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#include <AK/Debug.h>
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#include <LibWeb/WebGL/TextureUpload.h>
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namespace Web::WebGL {
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Optional<Gfx::ExportFormat> texture_export_format(GLenum format, GLenum type)
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{
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switch (format) {
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case GL_RGB:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return Gfx::ExportFormat::RGB888;
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case GL_UNSIGNED_SHORT_5_6_5:
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return Gfx::ExportFormat::RGB565;
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default:
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break;
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}
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break;
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case GL_RGBA:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return Gfx::ExportFormat::RGBA8888;
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case GL_UNSIGNED_SHORT_4_4_4_4:
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// FIXME: This is not exactly the same as RGBA.
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return Gfx::ExportFormat::RGBA4444;
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case GL_UNSIGNED_SHORT_5_5_5_1:
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return Gfx::ExportFormat::RGBA5551;
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default:
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break;
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}
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break;
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case GL_ALPHA:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return Gfx::ExportFormat::Alpha8;
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default:
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break;
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}
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break;
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case GL_LUMINANCE:
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switch (type) {
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case GL_UNSIGNED_BYTE:
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return Gfx::ExportFormat::Gray8;
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default:
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break;
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}
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break;
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default:
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break;
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}
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dbgln("WebGL: Unsupported format and type combination. format: 0x{:04x}, type: 0x{:04x}", format, type);
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return {};
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}
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}
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