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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. */
/** \file
* \ingroup draw
*
* Engine data
* Structure containing each draw engine instance data.
*/
#pragma once
#define GPU_INFO_SIZE 512 /* IMA_MAX_RENDER_TEXT */
#ifdef __cplusplus
extern "C" {
#endif
struct DRWRegisteredDrawEngine;
struct DrawEngineType;
struct GPUViewport;
/* NOTE: these structs are only here for reading the actual lists from the engine.
* The actual length of them is stored in a ViewportEngineData_Info.
* The length of 1 is just here to avoid compiler warning. */
typedef struct FramebufferList {
struct GPUFrameBuffer *framebuffers[1];
} FramebufferList;
typedef struct TextureList {
struct GPUTexture *textures[1];
} TextureList;
typedef struct PassList {
struct DRWPass *passes[1];
} PassList;
/* Stores custom structs from the engine that have been MEM_(m/c)allocN'ed. */
typedef struct StorageList {
void *storage[1];
} StorageList;
typedef struct ViewportEngineData {
/* Not owning pointer to the draw engine. */
struct DRWRegisteredDrawEngine *engine_type;
FramebufferList *fbl;
TextureList *txl;
PassList *psl;
StorageList *stl;
/**
* \brief Memory block that can be freely used by the draw engine.
* When used the draw engine must implement #DrawEngineType.instance_free callback.
*/
void *instance_data;
char info[GPU_INFO_SIZE];
/* we may want to put this elsewhere */
struct DRWTextStore *text_draw_cache;
/* Profiling data */
double init_time;
double render_time;
double background_time;
} ViewportEngineData;
typedef struct ViewportEngineData_Info {
int fbl_len;
int txl_len;
int psl_len;
int stl_len;
} ViewportEngineData_Info;
/* Buffer and textures used by the viewport by default */
typedef struct DefaultFramebufferList {
struct GPUFrameBuffer *default_fb;
struct GPUFrameBuffer *overlay_fb;
struct GPUFrameBuffer *in_front_fb;
struct GPUFrameBuffer *color_only_fb;
struct GPUFrameBuffer *depth_only_fb;
struct GPUFrameBuffer *overlay_only_fb;
} DefaultFramebufferList;
typedef struct DefaultTextureList {
struct GPUTexture *color;
struct GPUTexture *color_overlay;
struct GPUTexture *depth;
struct GPUTexture *depth_in_front;
} DefaultTextureList;
typedef struct DRWViewData DRWViewData;
/**
* Creates a view data with all possible engines type for this view.
*
* `engine_types` contains #DRWRegisteredDrawEngine.
*/
DRWViewData *DRW_view_data_create(ListBase *engine_types);
void DRW_view_data_free(DRWViewData *view_data);
void DRW_view_data_default_lists_from_viewport(DRWViewData *view_data,
struct GPUViewport *viewport);
void DRW_view_data_texture_list_size_validate(DRWViewData *view_data, const int size[2]);
ViewportEngineData *DRW_view_data_engine_data_get_ensure(DRWViewData *view_data,
struct DrawEngineType *engine_type_);
void DRW_view_data_use_engine(DRWViewData *view_data, struct DrawEngineType *engine_type);
void DRW_view_data_reset(DRWViewData *view_data);
void DRW_view_data_free_unused(DRWViewData *view_data);
void DRW_view_data_engines_view_update(DRWViewData *view_data);
double *DRW_view_data_cache_time_get(DRWViewData *view_data);
DefaultFramebufferList *DRW_view_data_default_framebuffer_list_get(DRWViewData *view_data);
DefaultTextureList *DRW_view_data_default_texture_list_get(DRWViewData *view_data);
typedef struct DRWEngineIterator {
int id, end;
ViewportEngineData **engines;
} DRWEngineIterator;
/* Iterate over used engines of this view_data. */
void DRW_view_data_enabled_engine_iter_begin(DRWEngineIterator *iterator, DRWViewData *view_data);
ViewportEngineData *DRW_view_data_enabled_engine_iter_step(DRWEngineIterator *iterator);
#define DRW_ENABLED_ENGINE_ITER(view_data_, engine_, data_) \
DRWEngineIterator iterator; \
ViewportEngineData *data_; \
struct DrawEngineType *engine_; \
DRW_view_data_enabled_engine_iter_begin(&iterator, view_data_); \
/* WATCH Comma operator trickery ahead! This tests engine_ == NULL. */ \
while ((data_ = DRW_view_data_enabled_engine_iter_step(&iterator), \
engine_ = (data_ != NULL) ? (struct DrawEngineType *)data_->engine_type->draw_engine : \
NULL))
#ifdef __cplusplus
}
#endif
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