draw.h

Centrality Atlas II development software

	int			clip_top;
	int			clip_right;
	int			clip_bottom;
	int			reserved0;
	int			reserved1;
	int			reserved2;
	int			reserved3;

	unsigned char		*palette_lut;		/* 4k palette look up table (444 true color to palette index conversions) */

	disp_color_t		*dest_palette;		/* Palette to be used for 8-bit alpha blending */
	int			dest_palette_size;

	disp_fx_t		xform_matrix[4];	/* 2x2 matrix */
	int			xlate_x;
	int			xlate_y;
	unsigned		line_flags;
	int			line_join;
	uint32_t		line_pat;
	int			line_repeat;
	int			line_initial_offset;
	int			cap_style;
	int			poly_fill;
	disp_surface_t		*dst_alpha_map;
	unsigned		dst_alpha_map_xoff, dst_alpha_map_yoff;
	uintptr_t		reserved[5];
} disp_draw_context_t;

__BEGIN_DECLS

typedef struct disp_nl_accessfuncs {
	void (*writescan)(disp_draw_context_t *ctx, disp_surface_t *dst,
	    int x, int y, int npixels, void *data);
	void (*readscan)(disp_draw_context_t *ctx, disp_surface_t *src,
	    int x, int y, int npixels, void *data);
	void (*setscan)(disp_draw_context_t *ctx, disp_surface_t *dst,
	    int x, int y, int npixels, disp_color_t color);
	void (*setscan_mono)(disp_draw_context_t *ctx, disp_surface_t *dst,
	    int x, int y, int npixels,
	    disp_color_t fgcolor, disp_color_t bgcolor, uint8_t pat, int patidx);
	void (*setscan_trans)(disp_draw_context_t *ctx, disp_surface_t *dst,
	    int x, int y, int npixels, disp_color_t color, uint8_t pat, int patidx);
	void (*setscan_bitmap)(disp_draw_context_t *ctx, disp_surface_t *dst,
	    int x, int y, int width,
	    disp_color_t fgcolor, disp_color_t bgcolor, int bit0_offset,
	    int transparent, uint8_t *sptr);
} disp_nl_accessfuncs_t;

typedef struct disp_draw_corefuncs {
	void (*wait_idle)(disp_draw_context_t *);
	int (*hw_idle)(disp_adapter_t *adapter, void *ignored);

	/* Simple drawing functions */
	void (*draw_span)(disp_draw_context_t *context,
	    disp_color_t color, int x1, int x2, int y);
	void (*draw_span_list)(disp_draw_context_t *context, int count,
	    disp_color_t color, int x1[], int x2[], int y[]);
	void (*draw_solid_rect)(disp_draw_context_t *context,
	    disp_color_t color, int x1, int y1, int x2, int y2);
	void (*draw_line_pat8x1)(disp_draw_context_t *context,
	    disp_color_t fgcolor, disp_color_t bgcolor,
	    int x1, int x2, int y, uint8_t pattern);
	void (*draw_line_trans8x1)(disp_draw_context_t *context,
	    disp_color_t color, int x1, int x2, int y, uint8_t pattern);

	void (*draw_rect_pat8x8)(disp_draw_context_t *context,
	    disp_color_t fgcolor, disp_color_t bgcolor, int x1, int y1,
	    int x2, int y2);
	void (*draw_rect_trans8x8)(disp_draw_context_t *context,
	    disp_color_t color, int x1, int y1, int x2, int y2);

	void (*blit1)(disp_draw_context_t *context, 
	    int sx, int sy, int dx, int dy, int width, int height);
	void (*blit2)(disp_draw_context_t *context, 
	    disp_surface_t *src, disp_surface_t *dst,
	    int sx, int sy, int dx, int dy, int width, int height);

	void (*draw_bitmap)(disp_draw_context_t *context,
	    uint8_t *image, int sstride, int bit0_offset,
	    disp_color_t fgcolor, disp_color_t bgcolor,
	    int transparent, int dx, int dy, int width, int height);

	void (*update_draw_surface)(disp_draw_context_t *context);
	void (*update_pattern)(disp_draw_context_t *context);

	void (*scaled_blit)(disp_draw_context_t *context, 
	    disp_surface_t *src, disp_surface_t *dst,
	    int sx1, int sy1, int sx2, int sy2,
	    int dx1, int dy1, int dx2, int dy2);

	void (*draw_line)(disp_draw_context_t *context, disp_color_t color,
	    int x1, int y1, int x2, int y2, unsigned flags);
	int (*fill_poly)(disp_draw_context_t *ctx, disp_color_t color,
	    disp_point_t *pointlist, int npoints, unsigned flags);

	int (*get_bresenham_params)(disp_draw_context_t *ctx,
	    int x1, int y1, int x2, int y2,
	    int *initial_error, int *major_inc, int *minor_inc);

	void (*update_transform)(disp_draw_context_t *context);
	void (*update_clipping)(disp_draw_context_t *context);

	void (*blend_pixels)(disp_draw_context_t *ctx, disp_color_t color,
	    int x[], int y[], uint8_t alpha[], int npixels);

	disp_nl_accessfuncs_t * (*get_nlfuncs)(disp_draw_context_t *ctx,
	    disp_surface_t *surf);

	void	(*reserved[8])(void);
} disp_draw_corefuncs_t; 

typedef struct disp_draw_contextfuncs {
	void (*draw_span)(disp_draw_context_t *context,
	    unsigned x1, unsigned x2, unsigned y);
	void (*draw_span_list)(disp_draw_context_t *context, int count,
	    int x1[], int x2[], int y[]);
	void (*draw_rect)(disp_draw_context_t *context,
	    unsigned x1, unsigned y1, unsigned x2, unsigned y2);

	void (*blit)(disp_draw_context_t *context, disp_surface_t *src,
	    disp_surface_t *dst, unsigned sx, unsigned sy,
	    unsigned dx, unsigned dy, unsigned width, unsigned height);

	/* Notify of changes in draw context */
	void (*update_general)(disp_draw_context_t *context);
	void (*update_color)(disp_draw_context_t *context);
	void (*update_rop3)(disp_draw_context_t *context);
	void (*update_chroma)(disp_draw_context_t *context);
	void (*update_alpha)(disp_draw_context_t *context);

	void (*scaled_blit)(disp_draw_context_t *context, 
	    disp_surface_t *src, disp_surface_t *dst,
	    int sx1, int sy1, int sx2, int sy2,
	    int dx1, int dy1, int dx2, int dy2);

	void (*update_planemask)(disp_draw_context_t *context);

	void (*draw_line)(disp_draw_context_t *context,
	    int x1, int y1, int x2, int y2, unsigned flags);
	int (*fill_poly)(disp_draw_context_t *ctx,
	    disp_point_t *pointlist, int npoints, unsigned flags);
	int (*draw_polyline)(disp_draw_context_t *ctx,
	    disp_point_t *pointlist, int npoints, int width, unsigned flags);
	void (*update_line)(disp_draw_context_t *context);
	void (*blend_pixels)(disp_draw_context_t *ctx,
	    int x[], int y[], uint8_t alpha[], int npixels);

	void	(*reserved[8])(void);
} disp_draw_contextfuncs_t; 

typedef struct disp_draw_miscfuncs {
	int (*init)(disp_adapter_t *adapter, char *optstring);
	void (*fini)(disp_adapter_t *adapter);
	void (*module_info)(disp_adapter_t *adapter, disp_module_info_t *info);
	int (*set_palette)(disp_adapter_t *ctx,
	    int index, int count, disp_color_t *pal);
	int (*set_hw_cursor)(disp_adapter_t *ctx,
	    uint8_t *fg_bmp, uint8_t *bg_bmp,
	    unsigned fg_color, unsigned bg_color,
	    int hotspot_x, int hotspot_y,
	    int size_x, int size_y, int bmp_stride);
	void (*enable_hw_cursor)(disp_adapter_t *ctx);
	void (*disable_hw_cursor)(disp_adapter_t *ctx);
	void (*set_hw_cursor_pos)(disp_adapter_t *ctx, int x, int y);
	void (*flushrect)(disp_draw_context_t *ctx,
	    int x1, int y1, int x2, int y2);
	int (*service_msg)(disp_draw_context_t *ctx,
	    void *data_in, int nbytes, void *data_out, int out_buffer_size);
	int (*get_2d_caps)(disp_adapter_t *adapter,
	    disp_surface_t *surf, disp_2d_caps_t *caps);

	int (*get_corefuncs_sw)(disp_adapter_t *adapter, unsigned pixel_format,
	    disp_draw_corefuncs_t *fns, int tabsize);
	int (*get_contextfuncs_sw)(disp_adapter_t *adapter,
	    disp_draw_contextfuncs_t *fns, int tabsize);

	int (*set_power_mode)(disp_adapter_t *adapter, pm_power_mode_t mode);

	int (*end_of_draw)(disp_adapter_t *adapter);
	
	/* Support for rendering from another process */
	int (*attach_external)(disp_adapter_t *adapter, disp_aperture_t aper[]);
	int (*detach_external)(disp_adapter_t *adapter);
	int (*recover)(disp_adapter_t *adapter);

	int (*wait_idle)(disp_adapter_t *adapter);
	int (*devctl)(disp_adapter_t *adapter, disp_draw_devctl_t cmd,
	    void *data_in, int nbytes, void *data_out, int *out_buffer_size);

	int (*terminate_notify)(disp_adapter_t *adapter, pid_t pid);

	void (*set_memory_zone)(disp_adapter_t *adapter, int zone);
	
	void	(*reserved[6])(void);
} disp_draw_miscfuncs_t;

typedef int (*get_miscfuncs_t)(disp_adapter_t *adapter,
    disp_draw_miscfuncs_t *fns, int tabsize);
typedef int (*get_corefuncs_t)(disp_adapter_t *adapter, unsigned pixel_format,
    disp_draw_corefuncs_t *fns, int tabsize);
typedef int (*get_contextfuncs_t)(disp_adapter_t *adapter,
    disp_draw_contextfuncs_t *fns, int tabsize);

/* Main draw driver entry points */
extern WINSIM_API int devg_get_miscfuncs(disp_adapter_t *adapter,
    disp_draw_miscfuncs_t *fns, int tabsize);
extern WINSIM_API int devg_get_corefuncs(disp_adapter_t *adapter, unsigned pixel_format,
    disp_draw_corefuncs_t *fns, int tabsize);
extern WINSIM_API int devg_get_contextfuncs(disp_adapter_t *adapter,
    disp_draw_contextfuncs_t *fns, int tabsize);

__END_DECLS

#endif /* _GRAPHICS_DRAW_H_INCLUDED */