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/*
 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *      Jerome Glisse
 */
#ifndef R600_PIPE_H
#define R600_PIPE_H

#include <pipe/p_state.h>
#include <pipe/p_screen.h>
#include <pipe/p_context.h>
#include <util/u_math.h>
#include "r600.h"
#include "r600_shader.h"
#include "r600_resource.h"

enum r600_pipe_state_id {
	R600_PIPE_STATE_BLEND = 0,
	R600_PIPE_STATE_BLEND_COLOR,
	R600_PIPE_STATE_CONFIG,
	R600_PIPE_STATE_CLIP,
	R600_PIPE_STATE_SCISSOR,
	R600_PIPE_STATE_VIEWPORT,
	R600_PIPE_STATE_RASTERIZER,
	R600_PIPE_STATE_VGT,
	R600_PIPE_STATE_FRAMEBUFFER,
	R600_PIPE_STATE_DSA,
	R600_PIPE_STATE_STENCIL_REF,
	R600_PIPE_STATE_PS_SHADER,
	R600_PIPE_STATE_VS_SHADER,
	R600_PIPE_STATE_CONSTANT,
	R600_PIPE_STATE_SAMPLER,
	R600_PIPE_STATE_RESOURCE,
	R600_PIPE_NSTATES
};

struct r600_screen {
	struct pipe_screen		screen;
	struct radeon			*radeon;
};

struct r600_pipe_sampler_view {
	struct pipe_sampler_view	base;
	struct r600_pipe_state		state;
};

struct r600_pipe_rasterizer {
	struct r600_pipe_state		rstate;
	bool				flatshade;
	unsigned			sprite_coord_enable;
	float				offset_units;
	float				offset_scale;
};

struct r600_pipe_blend {
	struct r600_pipe_state		rstate;
	unsigned			cb_target_mask;
};

struct r600_vertex_element
{
	unsigned			count;
	unsigned			refcount;
	struct pipe_vertex_element	elements[32];
};

struct r600_pipe_shader {
	struct r600_shader		shader;
	struct r600_pipe_state		rstate;
	struct radeon_ws_bo		*bo;
	struct r600_vertex_element	vertex_elements;
};


struct r600_pipe_context {
	struct pipe_context		context;
	struct blitter_context		*blitter;
	struct pipe_framebuffer_state	*pframebuffer;
	unsigned			family;
	void				*custom_dsa_flush;
	struct list_head		query_list; /* fake member for depth remove once merged */
	struct r600_screen		*screen;
	struct radeon			*radeon;
	struct r600_pipe_state		*states[R600_PIPE_NSTATES];
	struct r600_context		ctx;
	struct r600_vertex_element	*vertex_elements;
	struct pipe_framebuffer_state	framebuffer;
	struct pipe_index_buffer	index_buffer;
	struct pipe_vertex_buffer	vertex_buffer[PIPE_MAX_ATTRIBS];
	unsigned			nvertex_buffer;
	unsigned			cb_target_mask;
	/* for saving when using blitter */
	struct pipe_stencil_ref		stencil_ref;
	struct pipe_viewport_state	viewport;
	struct pipe_clip_state		clip;
	unsigned			vs_nconst;
	unsigned			ps_nconst;
	struct r600_pipe_state		vs_const[256];
	struct r600_pipe_state		ps_const[256];
	struct r600_pipe_state		vs_resource[160];
	struct r600_pipe_state		ps_resource[160];
	struct r600_pipe_state		config;
	struct r600_pipe_shader 	*ps_shader;
	struct r600_pipe_shader 	*vs_shader;
	struct r600_pipe_state		vs_const_buffer;
	struct r600_pipe_state		ps_const_buffer;
	struct r600_pipe_rasterizer	*rasterizer;
	/* shader information */
	unsigned			sprite_coord_enable;
	bool				flatshade;
	struct u_upload_mgr		*upload_vb;
	struct u_upload_mgr		*upload_ib;
	unsigned			any_user_vbs;
};

struct r600_drawl {
	struct pipe_context	*ctx;
	unsigned		mode;
	unsigned		min_index;
	unsigned		max_index;
	unsigned		index_bias;
	unsigned		start;
	unsigned		count;
	unsigned		index_size;
	unsigned		index_buffer_offset;
	struct pipe_resource	*index_buffer;
};

uint32_t r600_translate_texformat(enum pipe_format format,
				  const unsigned char *swizzle_view, 
				  uint32_t *word4_p, uint32_t *yuv_format_p);

/* r600_state2.c */
int r600_pipe_shader_update2(struct pipe_context *ctx, struct r600_pipe_shader *shader);
int r600_pipe_shader_create2(struct pipe_context *ctx, struct r600_pipe_shader *shader, const struct tgsi_token *tokens);
int r600_upload_index_buffer2(struct r600_pipe_context *rctx, struct r600_drawl *draw);
int r600_upload_user_buffers2(struct r600_pipe_context *rctx);
void r600_translate_index_buffer2(struct r600_pipe_context *r600,
					struct pipe_resource **index_buffer,
					unsigned *index_size,
					unsigned *start, unsigned count);
int r600_find_vs_semantic_index2(struct r600_shader *vs,
				struct r600_shader *ps, int id);

/* evergreen_state.c */
void evergreen_init_state_functions2(struct r600_pipe_context *rctx);
void evergreen_init_config2(struct r600_pipe_context *rctx);
void evergreen_draw(struct pipe_context *ctx, const struct pipe_draw_info *info);
void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shader);
void evergreen_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader);

static INLINE u32 S_FIXED(float value, u32 frac_bits)
{
	return value * (1 << frac_bits);
}
#define ALIGN_DIVUP(x, y) (((x) + (y) - 1) / (y))

/* r600_buffer.c */
struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
					 const struct pipe_resource *templ);
struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
					      void *ptr, unsigned bytes,
					      unsigned bind);
unsigned r600_buffer_is_referenced_by_cs(struct pipe_context *context,
					 struct pipe_resource *buf,
					 unsigned face, unsigned level);
struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
					      struct winsys_handle *whandle);

#endif