// Vita3K emulator project
// Copyright (C) 2026 Vita3K team
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

#include <glutil/gl.h>
#include <gxm/types.h>
#include <renderer/profile.h>

#include <util/log.h>

namespace renderer::gl {
GLenum attribute_format_to_gl_type(SceGxmAttributeFormat format) {
    R_PROFILE(__func__);

    switch (format) {
    case SCE_GXM_ATTRIBUTE_FORMAT_U8:
    case SCE_GXM_ATTRIBUTE_FORMAT_U8N:
        return GL_UNSIGNED_BYTE;

    case SCE_GXM_ATTRIBUTE_FORMAT_S8:
    case SCE_GXM_ATTRIBUTE_FORMAT_S8N:
        return GL_BYTE;
    case SCE_GXM_ATTRIBUTE_FORMAT_U16:
    case SCE_GXM_ATTRIBUTE_FORMAT_U16N:
        return GL_UNSIGNED_SHORT;
    case SCE_GXM_ATTRIBUTE_FORMAT_S16:
    case SCE_GXM_ATTRIBUTE_FORMAT_S16N:
        return GL_SHORT;
    case SCE_GXM_ATTRIBUTE_FORMAT_F16:
        return GL_HALF_FLOAT;
    case SCE_GXM_ATTRIBUTE_FORMAT_F32:
        return GL_FLOAT;
    case SCE_GXM_ATTRIBUTE_FORMAT_UNTYPED:
        return GL_INT;
    }

    LOG_ERROR("Unsupported attribute format {}", log_hex(format));
    return GL_UNSIGNED_BYTE;
}

GLboolean attribute_format_normalized(SceGxmAttributeFormat format) {
    R_PROFILE(__func__);

    switch (format) {
    case SCE_GXM_ATTRIBUTE_FORMAT_U8N:
    case SCE_GXM_ATTRIBUTE_FORMAT_S8N:
    case SCE_GXM_ATTRIBUTE_FORMAT_U16N:
    case SCE_GXM_ATTRIBUTE_FORMAT_S16N:
        return GL_TRUE;
    default:
        return GL_FALSE;
    }
}
} // namespace renderer::gl
