11bf3dd71e
Text strip had a fixed size buffer of 512 bytes to hold the displayed text (this can be much fewer actual characters with non-English languages). Switch to dynamically allocated buffer instead, which can hold longer text. In order to support forward/backward compatibility, TextVars continues to hold the 512 byte buffer in memory. When writing out the .blend file, dynamic text buffer is copied into the fixed one. If it is longer, the text is truncated, so opening the .blend file in an older version will contain the first 512 bytes of the longer text. When reading existing files without the dynamic text buffer, it is created from the static buffer. Conceptually this approach is similar to constraints name length increase PR !137310. The text strip editing code was switched to operate on the dynamic buffer, resizing it as needed. seq::CharInfo internal struct was switched to be more independent of the actual buffer address; now each char entry just stores an index into the buffer instead of direct pointer (side effect: makes the struct smaller as well). Pull Request: https://projects.blender.org/blender/blender/pulls/140733
112 lines
2.7 KiB
C++
112 lines
2.7 KiB
C++
/* SPDX-FileCopyrightText: 2004 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
#include "DNA_vec_types.h"
|
|
|
|
#include "BLI_math_vector_types.hh"
|
|
#include "BLI_vector.hh"
|
|
|
|
/** \file
|
|
* \ingroup sequencer
|
|
*/
|
|
|
|
struct ImBuf;
|
|
struct Scene;
|
|
struct Strip;
|
|
struct TextVars;
|
|
|
|
namespace blender::seq {
|
|
|
|
struct RenderData;
|
|
|
|
enum class StripEarlyOut {
|
|
NoInput = -1, /* No input needed. */
|
|
DoEffect = 0, /* No early out (do the effect). */
|
|
UseInput1 = 1, /* Output = input1. */
|
|
UseInput2 = 2, /* Output = input2. */
|
|
};
|
|
|
|
/* Wipe effect */
|
|
enum {
|
|
DO_SINGLE_WIPE,
|
|
DO_DOUBLE_WIPE,
|
|
/* DO_BOX_WIPE, */ /* UNUSED */
|
|
/* DO_CROSS_WIPE, */ /* UNUSED */
|
|
DO_IRIS_WIPE,
|
|
DO_CLOCK_WIPE,
|
|
};
|
|
|
|
struct EffectHandle {
|
|
/* constructors & destructor */
|
|
/* init is _only_ called on first creation */
|
|
void (*init)(Strip *strip);
|
|
|
|
/* number of input strips needed
|
|
* (called directly after construction) */
|
|
int (*num_inputs)();
|
|
|
|
/* load is called first time after readblenfile in
|
|
* get_sequence_effect automatically */
|
|
void (*load)(Strip *seqconst);
|
|
|
|
/* duplicate */
|
|
void (*copy)(Strip *dst, const Strip *src, int flag);
|
|
|
|
/* destruct */
|
|
void (*free)(Strip *strip, bool do_id_user);
|
|
|
|
StripEarlyOut (*early_out)(const Strip *strip, float fac);
|
|
|
|
/* sets the default `fac` value */
|
|
void (*get_default_fac)(const Scene *scene,
|
|
const Strip *strip,
|
|
float timeline_frame,
|
|
float *fac);
|
|
|
|
/* execute the effect */
|
|
ImBuf *(*execute)(const RenderData *context,
|
|
Strip *strip,
|
|
float timeline_frame,
|
|
float fac,
|
|
ImBuf *ibuf1,
|
|
ImBuf *ibuf2);
|
|
};
|
|
|
|
/** Get the effect handle for a given strip, and load the strip if it has not been loaded already.
|
|
* If `strip` is not an effect strip, returns empty `EffectHandle`. */
|
|
EffectHandle strip_effect_handle_get(Strip *strip);
|
|
int effect_get_num_inputs(int strip_type);
|
|
void effect_text_font_unload(TextVars *data, bool do_id_user);
|
|
void effect_text_font_load(TextVars *data, bool do_id_user);
|
|
bool effects_can_render_text(const Strip *strip);
|
|
|
|
struct CharInfo {
|
|
int index = 0;
|
|
int offset = 0; /* Offset in bytes within text buffer. */
|
|
int byte_length = 0;
|
|
float2 position{0.0f, 0.0f};
|
|
int advance_x = 0;
|
|
bool do_wrap = false;
|
|
};
|
|
|
|
struct LineInfo {
|
|
Vector<CharInfo> characters;
|
|
int width;
|
|
};
|
|
|
|
struct TextVarsRuntime {
|
|
Vector<LineInfo> lines;
|
|
|
|
rcti text_boundbox; /* Bound-box used for box drawing and selection. */
|
|
int line_height;
|
|
int font_descender;
|
|
int character_count;
|
|
int font;
|
|
bool editing_is_active; /* UI uses this to differentiate behavior. */
|
|
};
|
|
|
|
} // namespace blender::seq
|