Mike-Solar
3d004c081b
- oakcodec: de-Qt all 20 sources (QThread decode loop -> std::thread,
QObject/signals -> callbacks), pure C ABI in include/codec with
refcounted neutral handles (OakFrame/OakDecoder/OakEncoder),
framemanager moved in from render, frame_to_buffer/buffer_to_frame
moved in from oakcommon oiioutils, codec->task via submit callback
(M8 will register), all cross-module calls go through the other
side's C API, -fvisibility=hidden + OAKCODEC_API
- oakcommon: handles become refcounted value structs
{ctx, addref, release, abi_version} (FFmpeg-style), pass-by-value
signatures, free() as release wrapper; init_from_native/get_native
for copyable value objects; OakCommonXxx renamed to OakXxx
- oakcommon: add logging (log_debug/info/warning/critical with level
filtering and sink injection) + printf-style oakcommon_log C wrapper
- oakrender: add CancelAtom C API family; complete
oakrender_color_processor_convert_frame; fix get_processor() missing
definition and OCIO env var lookup
- tests: oakcommon 174, oaknode 96, oakrender 42, oakcodec 18, all
green in their standalone builds
191 lines
6.1 KiB
C
191 lines
6.1 KiB
C
/***
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Oak Video Editor - Non-Linear Video Editor
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Copyright (C) 2026 Oak Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef OAK_EDITOR_XMLUTILS_H
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#define OAK_EDITOR_XMLUTILS_H
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#include "common/error.h"
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#include "common/handle.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Neutral by-value handle to a streaming XML reader.
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*
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* Ownership/count semantics follow the convention in common/handle.h:
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* init returns a handle whose object has reference count 1,
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* addref(ctx)/release(ctx) adjust it atomically, and release destroys
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* the object at zero. abi_version is always OAKCOMMON_ABI_VERSION.
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*/
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typedef struct OakXmlReader {
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void *ctx; /**< Opaque pointer to the reference-counted object. */
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void (*addref)(void *ctx); /**< Atomically increments the count. */
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void (*release)(void *ctx); /**< Decrements the count, destroys at 0. */
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uint32_t abi_version; /**< OAKCOMMON_ABI_VERSION. */
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} OakXmlReader;
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/**
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* @brief Neutral by-value handle to a streaming XML writer.
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*
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* Same ownership/count semantics as OakXmlReader.
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*/
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typedef struct OakXmlWriter {
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void *ctx; /**< Opaque pointer to the reference-counted object. */
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void (*addref)(void *ctx); /**< Atomically increments the count. */
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void (*release)(void *ctx); /**< Decrements the count, destroys at 0. */
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uint32_t abi_version; /**< OAKCOMMON_ABI_VERSION. */
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} OakXmlWriter;
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/**
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* @brief Create a streaming XML reader over a complete document.
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*
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* @param data NUL-terminated XML text. Must not be NULL.
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* @return Handle with reference count 1; ctx is NULL on failure
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* (NULL data, out of memory).
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*/
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OakXmlReader oakcommon_xml_reader_init(const char *data);
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/**
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* @brief Release one reference to a reader.
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*
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* Convenience wrapper around handle.release(handle.ctx): decrements the
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* atomic reference count and destroys the object when it reaches zero.
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* No-op when reader is NULL or reader->ctx is NULL.
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*/
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void oakcommon_xml_reader_free(OakXmlReader *reader);
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/**
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* @brief Advance until the next start element, an end element, or the end
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* of the document.
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*
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* @param reader Reader handle.
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* @param found Out: 1 if positioned on a start element, 0 otherwise.
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* @return OAKCOMMON_OK or a negative OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_read_next_start_element(OakXmlReader reader,
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int *found);
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/**
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* @brief Name of the current element token.
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*
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* @return Required buffer size in bytes (including NUL), or a negative
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* OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_name(OakXmlReader reader, char *buf,
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int buf_size);
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/**
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* @brief Read the concatenated character data of the current element.
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*
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* Must be called on a start element; consumes up to the matching end
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* element.
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*
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* @return Required buffer size in bytes (including NUL), or a negative
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* OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_read_element_text(OakXmlReader reader,
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char *buf, int buf_size);
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/**
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* @brief Skip the current element and all of its children.
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*
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* @return OAKCOMMON_OK or a negative OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_skip_current_element(OakXmlReader reader);
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/**
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* @brief Number of attributes on the current start element.
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*
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* @return OAKCOMMON_OK or a negative OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_attribute_count(OakXmlReader reader,
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int *count);
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/**
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* @brief Name of the attribute at @p index on the current start element.
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*
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* @return Required buffer size in bytes (including NUL), OAKCOMMON_E_NOT_FOUND
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* if @p index is out of range, or another negative OAKCOMMON_E_* code.
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*/
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int oakcommon_xml_reader_attribute_name(OakXmlReader reader, int index,
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char *buf, int buf_size);
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/**
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* @brief Value of the attribute at @p index on the current start element.
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*
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* @return Required buffer size in bytes (including NUL), OAKCOMMON_E_NOT_FOUND
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* if @p index is out of range, or another negative OAKCOMMON_E_* code.
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*/
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int oakcommon_xml_reader_attribute_value(OakXmlReader reader,
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int index, char *buf, int buf_size);
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/**
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* @brief Whether the document failed to parse.
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*
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* @return OAKCOMMON_OK or a negative OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_reader_has_error(OakXmlReader reader,
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int *has_error);
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/**
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* @brief Create a streaming XML writer.
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*
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* @return Handle with reference count 1; ctx is NULL on failure.
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*/
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OakXmlWriter oakcommon_xml_writer_init(void);
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/**
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* @brief Release one reference to a writer.
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*
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* Convenience wrapper around handle.release(handle.ctx): decrements the
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* atomic reference count and destroys the object when it reaches zero.
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* No-op when writer is NULL or writer->ctx is NULL.
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*/
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void oakcommon_xml_writer_free(OakXmlWriter *writer);
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int oakcommon_xml_writer_write_start_element(OakXmlWriter writer,
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const char *name);
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int oakcommon_xml_writer_write_attribute(OakXmlWriter writer,
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const char *name, const char *value);
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int oakcommon_xml_writer_write_characters(OakXmlWriter writer,
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const char *text);
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int oakcommon_xml_writer_write_text_element(OakXmlWriter writer,
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const char *name,
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const char *text);
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int oakcommon_xml_writer_write_end_element(OakXmlWriter writer);
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int oakcommon_xml_writer_write_end_document(OakXmlWriter writer);
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/**
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* @brief The document written so far.
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*
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* @return Required buffer size in bytes (including NUL), or a negative
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* OAKCOMMON_E_* error code.
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*/
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int oakcommon_xml_writer_output(OakXmlWriter writer, char *buf,
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int buf_size);
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#ifdef __cplusplus
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}
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#endif
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#endif // OAK_EDITOR_XMLUTILS_H
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