Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/imbuf/IMB_openexr.hh

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+/* SPDX-FileCopyrightText: 2024 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup imbuf
+ *
+ * API for reading and writing multi-layer EXR files.
+ */
+
+#pragma once
+
+#include "BLI_string_ref.hh"
+
+namespace blender {
+
+/* XXX layer+pass name max 64? */
+#define EXR_LAY_MAXNAME 64
+#define EXR_PASS_MAXNAME 64
+#define EXR_VIEW_MAXNAME 64
+#define EXR_TOT_MAXNAME 64
+/** Number of supported channels per pass (easy to change). */
+#define EXR_PASS_MAXCHAN 24
+
+struct StampData;
+struct ExrHandle;
+
+ExrHandle *IMB_exr_get_handle(bool write_multipart = false);
+
+/**
+ * Add multiple channels to EXR file.
+ * The number of channels is determined by channelnames.size() with
+ * each character a channel name.
+ * Layer and pass name, view name and colorspace are all optional.
+ *
+ * Used only for writing files.
+ */
+void IMB_exr_add_channels(ExrHandle *handle,
+                          StringRefNull layerpassname,
+                          StringRefNull channelnames,
+                          StringRefNull viewname,
+                          StringRefNull colorspace,
+                          size_t xstride,
+                          size_t ystride,
+                          const float *rect,
+                          bool use_half_float);
+
+/**
+ * Read from file.
+ */
+bool IMB_exr_begin_read(
+    ExrHandle *handle, const char *filepath, int *width, int *height, bool parse_channels);
+/**
+ * Used for output files (from #RenderResult) (single and multi-layer, single and multi-view).
+ */
+bool IMB_exr_begin_write(ExrHandle *handle,
+                         const char *filepath,
+                         int width,
+                         int height,
+                         const double ppm[2],
+                         int compress,
+                         int quality,
+                         const StampData *stamp);
+
+/**
+ * For reading, set the rect buffer to write into.
+ * \param full_name: Full channel name including layer, pass, view and channel.
+ */
+bool IMB_exr_set_channel(
+    ExrHandle *handle, StringRefNull full_name, int xstride, int ystride, float *rect);
+
+void IMB_exr_read_channels(ExrHandle *handle);
+void IMB_exr_write_channels(ExrHandle *handle);
+
+void IMB_exr_multilayer_convert(ExrHandle *handle,
+                                void *base,
+                                void *(*addview)(void *base, const char *str),
+                                void *(*addlayer)(void *base, const char *str),
+                                void (*addpass)(void *base,
+                                                void *lay,
+                                                const char *str,
+                                                float *rect,
+                                                int totchan,
+                                                const char *chan_id,
+                                                const char *view));
+
+void IMB_exr_close(ExrHandle *handle);
+
+void IMB_exr_add_view(ExrHandle *handle, const char *name);
+
+bool IMB_exr_has_multilayer(ExrHandle *handle);
+
+bool IMB_exr_get_ppm(ExrHandle *handle, double ppm[2]);
+
+/* Retrieves the EXR display window information. The information is in the same structure specified
+ * in ImBuf, see its documentation for more information. */
+void IMB_exr_get_display_window(ExrHandle *handle,
+                                int display_size[2],
+                                int display_offset[2],
+                                int data_offset[2]);
+
+}  // namespace blender