#ifndef __NV50_CONTEXT_H__
#define __NV50_CONTEXT_H__

#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_compiler.h"

#include "util/u_memory.h"
#include "util/u_math.h"

#include "draw/draw_vertex.h"

#include "nouveau/nouveau_winsys.h"
#include "nouveau/nouveau_gldefs.h"
#include "nouveau/nouveau_stateobj.h"
#include "nouveau/nouveau_context.h"

#include "nv50_screen.h"
#include "nv50_program.h"

#define NOUVEAU_ERR(fmt, args...) \
	fprintf(stderr, "%s:%d -  "fmt, __func__, __LINE__, ##args);
#define NOUVEAU_MSG(fmt, args...) \
	fprintf(stderr, "nouveau: "fmt, ##args);

/* Constant buffer assignment */
#define NV50_CB_PMISC		0
#define NV50_CB_PVP		1
#define NV50_CB_PFP		2
#define NV50_CB_PGP		3
#define NV50_CB_TIC		4
#define NV50_CB_TSC		5
#define NV50_CB_PUPLOAD         6

#define NV50_NEW_BLEND		(1 << 0)
#define NV50_NEW_ZSA		(1 << 1)
#define NV50_NEW_BLEND_COLOUR	(1 << 2)
#define NV50_NEW_STIPPLE	(1 << 3)
#define NV50_NEW_SCISSOR	(1 << 4)
#define NV50_NEW_VIEWPORT	(1 << 5)
#define NV50_NEW_RASTERIZER	(1 << 6)
#define NV50_NEW_FRAMEBUFFER	(1 << 7)
#define NV50_NEW_VERTPROG	(1 << 8)
#define NV50_NEW_VERTPROG_CB	(1 << 9)
#define NV50_NEW_FRAGPROG	(1 << 10)
#define NV50_NEW_FRAGPROG_CB	(1 << 11)
#define NV50_NEW_ARRAYS		(1 << 12)
#define NV50_NEW_SAMPLER	(1 << 13)
#define NV50_NEW_TEXTURE	(1 << 14)

struct nv50_blend_stateobj {
	struct pipe_blend_state pipe;
	struct nouveau_stateobj *so;
};

struct nv50_zsa_stateobj {
	struct pipe_depth_stencil_alpha_state pipe;
	struct nouveau_stateobj *so;
};

struct nv50_rasterizer_stateobj {
	struct pipe_rasterizer_state pipe;
	struct nouveau_stateobj *so;
};

struct nv50_sampler_stateobj {
	bool normalized;
	unsigned tsc[8];
};

static INLINE unsigned
get_tile_height(uint32_t tile_mode)
{
        return 1 << ((tile_mode & 0xf) + 2);
}

static INLINE unsigned
get_tile_depth(uint32_t tile_mode)
{
        return 1 << (tile_mode >> 4);
}

struct nv50_miptree_level {
	int *image_offset;
	unsigned pitch;
	unsigned tile_mode;
};

struct nv50_miptree {
	struct nouveau_miptree base;

	struct nv50_miptree_level level[PIPE_MAX_TEXTURE_LEVELS];
	int image_nr;
	int total_size;
};

static INLINE struct nv50_miptree *
nv50_miptree(struct pipe_texture *pt)
{
	return (struct nv50_miptree *)pt;
}

struct nv50_surface {
	struct pipe_surface base;
};

static INLINE struct nv50_surface *
nv50_surface(struct pipe_surface *pt)
{
	return (struct nv50_surface *)pt;
}

struct nv50_state {
	unsigned dirty;

	struct nouveau_stateobj *fb;
	struct nouveau_stateobj *blend;
	struct nouveau_stateobj *blend_colour;
	struct nouveau_stateobj *zsa;
	struct nouveau_stateobj *rast;
	struct nouveau_stateobj *stipple;
	struct nouveau_stateobj *scissor;
	unsigned scissor_enabled;
	struct nouveau_stateobj *viewport;
	unsigned viewport_bypass;
	struct nouveau_stateobj *tsc_upload;
	struct nouveau_stateobj *tic_upload;
	unsigned miptree_nr;
	struct nouveau_stateobj *vertprog;
	struct nouveau_stateobj *fragprog;
	struct nouveau_stateobj *programs;
	struct nouveau_stateobj *vtxfmt;
	struct nouveau_stateobj *vtxbuf;
	struct nouveau_stateobj *vtxattr;
	unsigned vtxelt_nr;
};

struct nv50_context {
	struct pipe_context pipe;

	struct nv50_screen *screen;
	unsigned pctx_id;

	struct draw_context *draw;

	struct nv50_state state;

	unsigned dirty;
	struct nv50_blend_stateobj *blend;
	struct nv50_zsa_stateobj *zsa;
	struct nv50_rasterizer_stateobj *rasterizer;
	struct pipe_blend_color blend_colour;
	struct pipe_poly_stipple stipple;
	struct pipe_scissor_state scissor;
	struct pipe_viewport_state viewport;
	struct pipe_framebuffer_state framebuffer;
	struct nv50_program *vertprog;
	struct nv50_program *fragprog;
	struct pipe_buffer *constbuf[PIPE_SHADER_TYPES];
	struct pipe_vertex_buffer vtxbuf[PIPE_MAX_ATTRIBS];
	unsigned vtxbuf_nr;
	struct pipe_vertex_element vtxelt[PIPE_MAX_ATTRIBS];
	unsigned vtxelt_nr;
	struct nv50_sampler_stateobj *sampler[PIPE_MAX_SAMPLERS];
	unsigned sampler_nr;
	struct nv50_miptree *miptree[PIPE_MAX_SAMPLERS];
	unsigned miptree_nr;

	uint16_t vbo_fifo;
};

static INLINE struct nv50_context *
nv50_context(struct pipe_context *pipe)
{
	return (struct nv50_context *)pipe;
}

extern void nv50_init_surface_functions(struct nv50_context *nv50);
extern void nv50_init_state_functions(struct nv50_context *nv50);
extern void nv50_init_query_functions(struct nv50_context *nv50);

extern void nv50_screen_init_miptree_functions(struct pipe_screen *pscreen);

extern int
nv50_surface_do_copy(struct nv50_screen *screen, struct pipe_surface *dst,
		     int dx, int dy, struct pipe_surface *src, int sx, int sy,
		     int w, int h);

/* nv50_draw.c */
extern struct draw_stage *nv50_draw_render_stage(struct nv50_context *nv50);

/* nv50_vbo.c */
extern boolean nv50_draw_arrays(struct pipe_context *, unsigned mode,
				unsigned start, unsigned count);
extern boolean nv50_draw_elements(struct pipe_context *pipe,
				  struct pipe_buffer *indexBuffer,
				  unsigned indexSize,
				  unsigned mode, unsigned start,
				  unsigned count);
extern void nv50_vbo_validate(struct nv50_context *nv50);

/* nv50_clear.c */
extern void nv50_clear(struct pipe_context *pipe, unsigned buffers,
		       const float *rgba, double depth, unsigned stencil);

/* nv50_program.c */
extern void nv50_vertprog_validate(struct nv50_context *nv50);
extern void nv50_fragprog_validate(struct nv50_context *nv50);
extern void nv50_linkage_validate(struct nv50_context *nv50);
extern void nv50_program_destroy(struct nv50_context *nv50,
				 struct nv50_program *p);

/* nv50_state_validate.c */
extern boolean nv50_state_validate(struct nv50_context *nv50);
extern void nv50_state_flush_notify(struct nouveau_channel *chan);

extern void nv50_so_init_sifc(struct nv50_context *nv50,
			      struct nouveau_stateobj *so,
			      struct nouveau_bo *bo, unsigned reloc,
			      unsigned size);

/* nv50_tex.c */
extern void nv50_tex_validate(struct nv50_context *);

/* nv50_transfer.c */
extern void
nv50_upload_sifc(struct nv50_context *nv50,
		 struct nouveau_bo *bo, unsigned dst_offset, unsigned reloc,
		 unsigned dst_format, int dst_w, int dst_h, int dst_pitch,
		 void *src, unsigned src_format, int src_pitch,
		 int x, int y, int w, int h, int cpp);

#endif
