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/**
* @file TwoHeadGfxArena.c
*
* This file implements a particular use of the double-ended stack allocator from TwoHeadArena.c for graphics data.
*
* Display list commands are allocated from the head while other graphics data such as matrices and vertices are
* allocated from the tail end.
*
* @see TwoHeadArena.c
*/
#include "global.h"
void THGA_Init(TwoHeadGfxArena* thga, void* start, size_t size) {
THA_Init(&thga->tha, start, size);
}
void THGA_Destroy(TwoHeadGfxArena* thga) {
THA_Destroy(&thga->tha);
}
u32 THGA_IsCrash(TwoHeadGfxArena* thga) {
return THA_IsCrash(&thga->tha);
}
void THGA_Reset(TwoHeadGfxArena* thga) {
THA_Reset(&thga->tha);
}
s32 THGA_GetRemaining(TwoHeadGfxArena* thga) {
return THA_GetRemaining(&thga->tha);
}
Gfx* THGA_GetHead(TwoHeadGfxArena* thga) {
return THA_GetHead(&thga->tha);
}
void THGA_SetHead(TwoHeadGfxArena* thga, Gfx* newHead) {
THA_SetHead(&thga->tha, newHead);
}
void* THGA_GetTail(TwoHeadGfxArena* thga) {
return THA_GetTail(&thga->tha);
}
/**
* Allocates a display list of `num` Gfx commands to the head of the Two Head Gfx Arena.
*/
Gfx* THGA_AllocDisplayList(TwoHeadGfxArena* thga, size_t num) {
return THA_AllocHead(&thga->tha, num * sizeof(Gfx));
}
/**
* Allocates a single Gfx command to the head of the Two Head Gfx Arena.
*/
Gfx* THGA_AllocGfx(TwoHeadGfxArena* thga) {
return THGA_AllocDisplayList(thga, 1);
}
/**
* Identical to `THGA_AllocGfx`
*
* @see THGA_AllocGfx
*/
Gfx* THGA_AllocGfx2(TwoHeadGfxArena* thga) {
return THGA_AllocGfx(thga);
}
/**
* Allocates to the end of the Two Head Gfx Arena. Intended for data complementary to the display lists such as
* matrices and vertices that are only needed for a single graphics task.
*/
void* THGA_AllocTail(TwoHeadGfxArena* thga, size_t size) {
return THA_AllocTail(&thga->tha, size);
}
/**
* Allocates `num` matrices to the tail end of the Two Head Gfx Arena.
*/
Mtx* THGA_AllocMtxArray(TwoHeadGfxArena* thga, size_t num) {
return THGA_AllocTail(thga, num * sizeof(Mtx));
}
/**
* Allocates a matrix to the tail end of the Two Head Gfx Arena.
*/
Mtx* THGA_AllocMtx(TwoHeadGfxArena* thga) {
return THGA_AllocTail(thga, sizeof(Mtx));
}
/**
* Allocates `num` vertices to the tail end of the Two Head Gfx Arena.
*/
Vtx* THGA_AllocVtxArray(TwoHeadGfxArena* thga, size_t num) {
return THGA_AllocTail(thga, num * sizeof(Vtx));
}
/**
* Allocates a vertex to the tail end of the Two Head Gfx Arena.
*/
Vtx* THGA_AllocVtx(TwoHeadGfxArena* thga) {
return THGA_AllocTail(thga, sizeof(Vtx));
}
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