////////////////////////////////////////////////////////////
//~ State types

Struct(G_Ctx)
{
  // Common shared resources
  G_IndexBufferDesc quad_indices;
  G_SamplerStateRef basic_sampler;
  G_Texture3DRef basic_noise;
};

Struct(G_ThreadLocalCtx)
{
  G_ArenaHandle gpu_perm;
};

extern G_Ctx G;
extern ThreadLocal G_ThreadLocalCtx G_tl;

////////////////////////////////////////////////////////////
//~ Bootstrap

void G_BootstrapCommon(void);

////////////////////////////////////////////////////////////
//~ Utils

//- Arena

G_ArenaHandle G_PermArena(void);

//- Push resource from cpu

G_ResourceHandle G_PushBufferFromCpuCopy_(G_ArenaHandle gpu_arena, G_CommandListHandle cl, String src, G_BufferDesc desc);
#define G_PushBufferFromCpuCopy(_arena, _cl, _src, ...) \
  G_PushBufferFromCpuCopy_((_arena), (_cl), (_src), (G_BufferDesc) { .size = (_src).len, __VA_ARGS__ })

//- Viewport / scissor

Rng3 G_ViewportFromTexture(G_ResourceHandle texture);
Rng2 G_ScissorFromTexture(G_ResourceHandle texture);

//- Shared resources

G_IndexBufferDesc G_QuadIndices(void);
G_SamplerStateRef G_BasicSampler(void);
G_Texture3DRef G_BasicNoiseTexture(void);