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workinf_Blender_Wasm/blender-5.2.0/source/blender/imbuf/intern/writeimage.cc
2026-08-12 04:47:48 -04:00

85 lines
2.2 KiB
C++

/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup imbuf
*/
#include <cerrno>
#include <cstdlib>
#include "BLI_path_utils.hh" /* For assertions. */
#include "IMB_colormanagement.hh"
#include "IMB_filetype.hh"
#include "IMB_imbuf.hh"
#include "IMB_imbuf_types.hh"
#include "CLG_log.h"
namespace blender {
static CLG_LogRef LOG = {"image.write"};
static void ensure_byte_buffer(ImBuf *ibuf, const ImFileType *type)
{
/* If writing byte image from float buffer, create a byte buffer for writing.
*
* For color managed image writing, IMB_colormanagement_imbuf_for_write should
* have already created this byte buffer. This is a basic fallback for other
* cases where we do not have a specific desired output colorspace. */
if (!(type->flag & IM_FTYPE_FLOAT)) {
if (ibuf->byte_data() == nullptr && ibuf->float_data()) {
ibuf->byte_buffer.colorspace = colormanage_colorspace_get_roled(COLOR_ROLE_DEFAULT_BYTE);
IMB_byte_from_float(ibuf);
}
}
}
bool IMB_save_image(ImBuf *ibuf, const char *filepath, ImBufFlags flags)
{
errno = 0;
BLI_assert(!BLI_path_is_rel(filepath));
if (ibuf == nullptr) {
return false;
}
ibuf->flags = flags;
const ImFileType *type = IMB_file_type_from_ibuf(ibuf);
if (type == nullptr || type->save == nullptr) {
CLOG_ERROR(&LOG, "Couldn't save image to \"%s\"", filepath);
return false;
}
BLI_assert((type->capability_write & eImFileTypeCapability::File) !=
eImFileTypeCapability::Zero);
ensure_byte_buffer(ibuf, type);
return type->save(ibuf, filepath, flags);
}
Vector<uint8_t> IMB_save_image_to_buffer(ImBuf *ibuf, ImBufFlags flags)
{
if (ibuf == nullptr) {
return {};
}
ibuf->flags = flags;
const ImFileType *type = IMB_file_type_from_ibuf(ibuf);
if (type == nullptr || type->save_buffer == nullptr) {
CLOG_ERROR(&LOG, "Couldn't save image to buffer");
return {};
}
BLI_assert((type->capability_write & eImFileTypeCapability::Memory) !=
eImFileTypeCapability::Zero);
ensure_byte_buffer(ibuf, type);
return type->save_buffer(ibuf, flags);
}
} // namespace blender