250 lines
8.9 KiB
C
250 lines
8.9 KiB
C
#if !defined(_ACCELERANT_H_)
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#define _ACCELERANT_H_
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#include <BeBuild.h>
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#include <SupportDefs.h>
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#include <GraphicsDefs.h>
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#include <OS.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#define B_ACCELERANT_ENTRY_POINT "get_accelerant_hook"
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#define B_ACCELERANT_VERSION 1
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typedef void * (*GetAccelerantHook)(uint32, void *);
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_EXPORT void * get_accelerant_hook(uint32 feature, void *data);
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enum {
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/* initialization */
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B_INIT_ACCELERANT = 0, /* required */
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B_ACCELERANT_CLONE_INFO_SIZE, /* required */
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B_GET_ACCELERANT_CLONE_INFO, /* required */
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B_CLONE_ACCELERANT, /* required */
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B_UNINIT_ACCELERANT, /* required */
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B_GET_ACCELERANT_DEVICE_INFO, /* required */
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B_ACCELERANT_RETRACE_SEMAPHORE, /* optional */
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/* mode configuration */
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B_ACCELERANT_MODE_COUNT = 0x100, /* required */
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B_GET_MODE_LIST, /* required */
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B_PROPOSE_DISPLAY_MODE, /* optional */
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B_SET_DISPLAY_MODE, /* required */
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B_GET_DISPLAY_MODE, /* required */
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B_GET_FRAME_BUFFER_CONFIG, /* required */
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B_GET_PIXEL_CLOCK_LIMITS, /* required */
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B_GET_TIMING_CONSTRAINTS, /* optional */
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B_MOVE_DISPLAY, /* optional */
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B_SET_INDEXED_COLORS, /* required if driver supports 8bit indexed modes */
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B_DPMS_CAPABILITIES, /* required if driver supports DPMS */
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B_DPMS_MODE, /* required if driver supports DPMS */
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B_SET_DPMS_MODE, /* required if driver supports DPMS */
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/* cursor managment */
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B_MOVE_CURSOR = 0x200, /* optional */
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B_SET_CURSOR_SHAPE, /* optional */
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B_SHOW_CURSOR, /* optional */
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/* synchronization */
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B_ACCELERANT_ENGINE_COUNT = 0x300, /* required */
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B_ACQUIRE_ENGINE, /* required */
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B_RELEASE_ENGINE, /* required */
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B_WAIT_ENGINE_IDLE, /* required */
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B_GET_SYNC_TOKEN, /* required */
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B_SYNC_TO_TOKEN, /* required */
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/* 2D acceleration */
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B_SCREEN_TO_SCREEN_BLIT = 0x400, /* optional */
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B_FILL_RECTANGLE, /* optional */
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B_INVERT_RECTANGLE, /* optional */
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B_FILL_SPAN, /* optional */
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B_SCREEN_TO_SCREEN_TRANSPARENT_BLIT, /* optional */
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B_SCREEN_TO_SCREEN_SCALED_FILTERED_BLIT, /* optional. NOTE: source and dest may NOT overlap */
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/* 3D acceleration */
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B_ACCELERANT_PRIVATE_START = (int)0x80000000
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};
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typedef struct {
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uint32 version; /* structure version number */
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char name[32]; /* a name the user will recognize the device by */
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char chipset[32]; /* the chipset used by the device */
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char serial_no[32]; /* serial number for the device */
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uint32 memory; /* amount of memory on the device, in bytes */
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uint32 dac_speed; /* nominal DAC speed, in MHz */
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} accelerant_device_info;
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typedef struct {
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uint32 pixel_clock; /* kHz */
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uint16 h_display; /* in pixels (not character clocks) */
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uint16 h_sync_start;
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uint16 h_sync_end;
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uint16 h_total;
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uint16 v_display; /* in lines */
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uint16 v_sync_start;
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uint16 v_sync_end;
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uint16 v_total;
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uint32 flags; /* sync polarity, etc. */
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} display_timing;
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typedef struct {
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display_timing timing; /* CTRC info */
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uint32 space; /* pixel configuration */
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uint16 virtual_width; /* in pixels */
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uint16 virtual_height; /* in lines */
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uint16 h_display_start; /* first displayed pixel in line */
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uint16 v_display_start; /* first displayed line */
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uint32 flags; /* mode flags */
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} display_mode;
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typedef struct {
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void *frame_buffer; /* pointer to first byte of frame buffer in virtual memory */
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void *frame_buffer_dma; /* pointer to first byte of frame buffer in physical memory for DMA */
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uint32 bytes_per_row; /* number of bytes in one virtual_width line */
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/* not neccesarily the same as virtual_width * byte_per_pixel */
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} frame_buffer_config;
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typedef struct {
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uint16 h_res; /* minimum effective change in horizontal pixels, usually 8 */
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uint16 h_sync_min; /* min/max horizontal sync pulse width in pixels, a multiple of h_res */
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uint16 h_sync_max;
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uint16 h_blank_min; /* min/max horizontal blank pulse width in pixels, a multiple of h_res */
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uint16 h_blank_max;
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uint16 v_res; /* minimum effective change in vertical lines, usually 1 */
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uint16 v_sync_min; /* min/max vertical sync pulse width in lines, a multiple of v_res */
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uint16 v_sync_max;
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uint16 v_blank_min; /* min/max vertical blank pulse width in linex, a multiple of v_res */
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uint16 v_blank_max;
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} display_timing_constraints;
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enum { /* mode flags */
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B_SCROLL = 1 << 0,
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B_8_BIT_DAC = 1 << 1,
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B_HARDWARE_CURSOR = 1 << 2,
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B_PARALLEL_ACCESS = 1 << 3,
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B_DPMS = 1 << 4,
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B_IO_FB_NA = 1 << 5
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};
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enum { /* power saver flags */
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B_DPMS_ON = 1 << 0,
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B_DPMS_STAND_BY = 1 << 1,
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B_DPMS_SUSPEND = 1 << 2,
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B_DPMS_OFF = 1 << 3
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};
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enum { /* timing flags */
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B_BLANK_PEDESTAL = 1 << 27,
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B_TIMING_INTERLACED = 1 << 28,
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B_POSITIVE_HSYNC = 1 << 29,
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B_POSITIVE_VSYNC = 1 << 30,
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B_SYNC_ON_GREEN = 1 << 31
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};
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typedef struct {
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uint16 src_left; /* guaranteed constrained to virtual width and height */
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uint16 src_top;
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uint16 dest_left;
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uint16 dest_top;
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uint16 width; /* 0 to N, where zero means one pixel, one means two pixels, etc. */
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uint16 height; /* 0 to M, where zero means one line, one means two lines, etc. */
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} blit_params;
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typedef struct {
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uint16 src_left; /* guaranteed constrained to virtual width and height */
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uint16 src_top;
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uint16 src_width; /* 0 to N, where zero means one pixel, one means two pixels, etc. */
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uint16 src_height; /* 0 to M, where zero means one line, one means two lines, etc. */
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uint16 dest_left;
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uint16 dest_top;
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uint16 dest_width; /* 0 to N, where zero means one pixel, one means two pixels, etc. */
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uint16 dest_height; /* 0 to M, where zero means one line, one means two lines, etc. */
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} scaled_blit_params;
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typedef struct {
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uint16 left; /* guaranteed constrained to virtual width and height */
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uint16 top;
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uint16 right;
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uint16 bottom;
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} fill_rect_params;
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typedef struct {
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uint32 engine_id; /* 0 == no engine, 1,2,3 etc individual engines */
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uint32 capability_mask; /* features this engine supports */
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void *opaque; /* optional pointer to engine private storage */
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} engine_token;
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enum { /* engine capabilities */
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B_2D_ACCELERATION = 1 << 0,
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B_3D_ACCELERATION = 1 << 1
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};
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typedef struct {
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uint64 counter; /* counts issued primatives */
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uint32 engine_id; /* what engine the counter is for */
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char opaque[12]; /* 12 bytes of private storage */
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} sync_token;
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/* Masks for color info */
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/* B_CMAP8 - 0x000000ff */
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/* B_RGB15/16 - 0x0000ffff */
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/* B_RGB24 - 0x00ffffff */
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/* B_RGB32 - 0xffffffff */
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typedef status_t (*init_accelerant)(int fd);
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typedef ssize_t (*accelerant_clone_info_size)(void);
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typedef void (*get_accelerant_clone_info)(void *data);
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typedef status_t (*clone_accelerant)(void *data);
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typedef void (*uninit_accelerant)(void);
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typedef status_t (*get_accelerant_device_info)(accelerant_device_info *adi);
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typedef uint32 (*accelerant_mode_count)(void);
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typedef status_t (*get_mode_list)(display_mode *);
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typedef status_t (*propose_display_mode)(display_mode *target, display_mode *low, display_mode *high);
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typedef status_t (*set_display_mode)(display_mode *mode_to_set);
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typedef status_t (*get_display_mode)(display_mode *current_mode);
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typedef status_t (*get_frame_buffer_config)(frame_buffer_config *a_frame_buffer);
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typedef status_t (*get_pixel_clock_limits)(display_mode *dm, uint32 *low, uint32 *high);
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typedef status_t (*move_display_area)(uint16 h_display_start, uint16 v_display_start);
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typedef status_t (*get_timing_constraints)(display_timing_constraints *dtc);
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typedef void (*set_indexed_colors)(uint count, uint8 first, uint8 *color_data, uint32 flags);
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typedef uint32 (*dpms_capabilities)(void);
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typedef uint32 (*dpms_mode)(void);
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typedef status_t (*set_dpms_mode)(uint32 dpms_flags);
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typedef sem_id (*accelerant_retrace_semaphore)(void);
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typedef status_t (*set_cursor_shape)(uint16 width, uint16 height, uint16 hot_x, uint16 hot_y, uint8 *andMask, uint8 *xorMask);
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typedef void (*move_cursor)(uint16 x, uint16 y);
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typedef void (*show_cursor)(bool is_visible);
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typedef uint32 (*accelerant_engine_count)(void);
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typedef status_t (*acquire_engine)(uint32 capabilities, uint32 max_wait, sync_token *st, engine_token **et);
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typedef status_t (*release_engine)(engine_token *et, sync_token *st);
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typedef void (*wait_engine_idle)(void);
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typedef status_t (*get_sync_token)(engine_token *et, sync_token *st);
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typedef status_t (*sync_to_token)(sync_token *st);
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typedef void (*screen_to_screen_blit)(engine_token *et, blit_params *list, uint32 count);
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typedef void (*fill_rectangle)(engine_token *et, uint32 color, fill_rect_params *list, uint32 count);
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typedef void (*invert_rectangle)(engine_token *et, fill_rect_params *list, uint32 count);
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typedef void (*screen_to_screen_transparent_blit)(engine_token *et, uint32 transparent_color, blit_params *list, uint32 count);
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typedef void (*screen_to_screen_scaled_filtered_blit)(engine_token *et, scaled_blit_params *list, uint32 count);
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typedef void (*fill_span)(engine_token *et, uint32 color, uint16 *list, uint32 count);
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/*
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The uint16 *list points to a list of tripples:
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list[N+0] Y co-ordinate of span
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list[N+1] Left x co-ordinate of span
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list[N+2] Right x co-ordinate of span
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where N is in the range 0 to count-1.
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*/
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#if defined(__cplusplus)
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}
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#endif
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#endif
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