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GPUIndexBuf: GL backend Isolation

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This is part of the Vulkan backend task T68990.

There is no real change, only making some code re-organisation.
This also make the IndexBuf completely abstract from outside the
GPU module.
This commit is contained in:
Clément Foucault
2020-09-06 02:46:51 +02:00
parent 84d67bd0a9
commit 4ea93029c6
16 changed files with 436 additions and 225 deletions
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35
source/blender/gpu/GPU_index_buffer.h
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@@ -31,40 +31,21 @@
extern "C" {
#endif
#define GPU_TRACK_INDEX_RANGE 1
typedef enum {
GPU_INDEX_U16,
GPU_INDEX_U32,
} GPUIndexBufType;
typedef struct GPUIndexBuf {
uint index_start;
uint index_len;
bool is_subrange;
#if GPU_TRACK_INDEX_RANGE
GPUIndexBufType index_type;
uint32_t gl_index_type;
uint base_index;
#endif
uint32_t ibo_id; /* 0 indicates not yet sent to VRAM */
union {
void *data; /* non-NULL indicates not yet sent to VRAM */
struct GPUIndexBuf *src; /* if is_subrange is true, this is the source buffer. */
};
} GPUIndexBuf;
/**
* IMPORTANT: Do not allocate manually as the real struct is bigger (i.e: GLIndexBuf). This is only
* the common and "public" part of the struct. Use the provided allocator.
* TODO(fclem) Make the content of this struct hidden and expose getters/setters.
**/
typedef struct GPUIndexBuf GPUIndexBuf;
GPUIndexBuf *GPU_indexbuf_calloc(void);
void GPU_indexbuf_use(GPUIndexBuf *);
uint GPU_indexbuf_size_get(const GPUIndexBuf *);
typedef struct GPUIndexBufBuilder {
uint max_allowed_index;
uint max_index_len;
uint index_len;
GPUPrimType prim_type;
uint *data;
uint32_t *data;
} GPUIndexBufBuilder;
/* supports all primitive types. */
@@ -102,6 +83,8 @@ void GPU_indexbuf_create_subrange_in_place(GPUIndexBuf *elem,
void GPU_indexbuf_discard(GPUIndexBuf *);
bool GPU_indexbuf_is_init(GPUIndexBuf *ibo);
int GPU_indexbuf_primitive_len(GPUPrimType prim_type);
/* Macros */