#include <stdlib.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <getopt.h>
#include "drm.h"
#include "i915_drm.h"
#include "drmtest.h"
#include "intel_bufmgr.h"
#include "intel_batchbuffer.h"
#include "intel_gpu_tools.h"

struct scratch_buf {
    drm_intel_bo *bo;
    uint32_t stride;
    uint32_t tiling;
    uint32_t *data;
    uint32_t *cpu_mapping;
    unsigned num_tiles;
};

struct option_struct {
    unsigned scratch_buf_size;
    unsigned max_dimension;
    unsigned num_buffers;
    int trace_tile;
    int no_hw;
    int gpu_busy_load;
    int use_render;
    int use_blt;
    int forced_tiling;
    int use_cpu_maps;
    int total_rounds;
    int fail;
    int tiles_per_buf;
    int ducttape;
    int tile_size;
    int check_render_cpyfn;
    int use_signal_helper;
};

extern struct option_struct options;
extern drm_intel_bufmgr *bufmgr;
extern struct intel_batchbuffer *batch;
extern int drm_fd;
extern int devid;

extern int fence_storm;

#define MAX_BUFS		4096
#define SCRATCH_BUF_SIZE	1024*1024
#define BUSY_BUF_SIZE		(256*4096)
#define TILE_BYTES(size)	((size)*(size)*sizeof(uint32_t))

void keep_gpu_busy(void);

static inline void emit_vertex_2s(int16_t x, int16_t y)
{
	OUT_BATCH((uint16_t)y << 16 | (uint16_t)x);
}

static inline void emit_vertex(float f)
{
	union { float f; uint32_t ui; } u;
	u.f = f;
	OUT_BATCH(u.ui);
}

static inline void emit_vertex_normalized(float f, float total)
{
	union { float f; uint32_t ui; } u;
	u.f = f / total;
	OUT_BATCH(u.ui);
}

static inline unsigned buf_width(struct scratch_buf *buf)
{
	return buf->stride/sizeof(uint32_t);
}

static inline unsigned buf_height(struct scratch_buf *buf)
{
	return options.scratch_buf_size/buf->stride;
}

void gen6_render_copyfunc(struct scratch_buf *src, unsigned src_x, unsigned src_y,
			  struct scratch_buf *dst, unsigned dst_x, unsigned dst_y,
			  unsigned logical_tile_no);
void gen3_render_copyfunc(struct scratch_buf *src, unsigned src_x, unsigned src_y,
			  struct scratch_buf *dst, unsigned dst_x, unsigned dst_y,
			  unsigned logical_tile_no);
void gen2_render_copyfunc(struct scratch_buf *src, unsigned src_x, unsigned src_y,
			  struct scratch_buf *dst, unsigned dst_x, unsigned dst_y,
			  unsigned logical_tile_no);