Subversion Repositories orsoc_graphics_accelerator

/* GFX defines */

#define GFX_BASEADDR   0xB8000000 /* Bus Adress to GFX  */

// Declarations of register addresses:

#define GFX_CONTROL        (GFX_BASEADDR + 0x00) /* Control Register */

#define GFX_STATUS         (GFX_BASEADDR + 0x04) /* Status Register */

#define GFX_ALPHA          (GFX_BASEADDR + 0x08) /* Alpha channel Register */

#define GFX_COLORKEY       (GFX_BASEADDR + 0x0c) /* Colorkey Register */

#define GFX_TARGET_BASE    (GFX_BASEADDR + 0x10) /* Offset to "Target" framebuffer */

#define GFX_TARGET_SIZE_X  (GFX_BASEADDR + 0x14) /* Target Width */

#define GFX_TARGET_SIZE_Y  (GFX_BASEADDR + 0x18) /* Target Height */

#define GFX_TEX0_BASE      (GFX_BASEADDR + 0x1c) /* Offset to texturebuffer */

#define GFX_TEX0_SIZE_X    (GFX_BASEADDR + 0x20) /* Texturebuffer Width */

#define GFX_TEX0_SIZE_Y    (GFX_BASEADDR + 0x24) /* Texturebuffer Height*/

#define GFX_SRC_PIXEL0_X   (GFX_BASEADDR + 0x28) /* source rect spanned by pixel0 and pixel1, ex a position in a image */

#define GFX_SRC_PIXEL0_Y   (GFX_BASEADDR + 0x2c) /*   0******   */

#define GFX_SRC_PIXEL1_X   (GFX_BASEADDR + 0x30) /*   *******   */

#define GFX_SRC_PIXEL1_Y   (GFX_BASEADDR + 0x34) /*   ******1   */

#define GFX_DEST_PIXEL_X   (GFX_BASEADDR + 0x38) /* Destination pixels, used to draw Rects,Lines,Curves or Triangles */

#define GFX_DEST_PIXEL_Y   (GFX_BASEADDR + 0x3c)

#define GFX_DEST_PIXEL_Z   (GFX_BASEADDR + 0x40)

#define GFX_AA             (GFX_BASEADDR + 0x44)

#define GFX_AB             (GFX_BASEADDR + 0x48)

#define GFX_AC             (GFX_BASEADDR + 0x4c)

#define GFX_TX             (GFX_BASEADDR + 0x50)

#define GFX_BA             (GFX_BASEADDR + 0x54)

#define GFX_BB             (GFX_BASEADDR + 0x58)

#define GFX_BC             (GFX_BASEADDR + 0x5c)

#define GFX_TY             (GFX_BASEADDR + 0x60)

#define GFX_CA             (GFX_BASEADDR + 0x64)

#define GFX_CB             (GFX_BASEADDR + 0x68)

#define GFX_CC             (GFX_BASEADDR + 0x6c)

#define GFX_TZ             (GFX_BASEADDR + 0x70)

#define GFX_CLIP_PIXEL0_X  (GFX_BASEADDR + 0x74) /* Clip Rect registers, only pixels inside the clip rect */

#define GFX_CLIP_PIXEL0_Y  (GFX_BASEADDR + 0x78) /* will be drawn on the screen when clipping is enabled. */

#define GFX_CLIP_PIXEL1_X  (GFX_BASEADDR + 0x7c)

#define GFX_CLIP_PIXEL1_Y  (GFX_BASEADDR + 0x80)

#define GFX_COLOR0         (GFX_BASEADDR + 0x84) /* Color registers, Color0 is mostly used.    */

#define GFX_COLOR1         (GFX_BASEADDR + 0x88) /* Color 1 & 2 is only used in interpolation  */

#define GFX_COLOR2         (GFX_BASEADDR + 0x8c) /* ex. triangle, one color from each corner   */

#define GFX_U0             (GFX_BASEADDR + 0x90)

#define GFX_V0             (GFX_BASEADDR + 0x94)

#define GFX_U1             (GFX_BASEADDR + 0x98)

#define GFX_V1             (GFX_BASEADDR + 0x9c)

#define GFX_U2             (GFX_BASEADDR + 0xa0)

#define GFX_V2             (GFX_BASEADDR + 0xa4)

#define GFX_ZBUFFER_BASE   (GFX_BASEADDR + 0xa8)

/* ===================== */

/* Control register bits */

/* ===================== */

#define GFX_CTRL_COLOR_DEPTH     0

#define GFX_CTRL_TEXTURE         2

#define GFX_CTRL_BLENDING        3

#define GFX_CTRL_COLORKEY        4

#define GFX_CTRL_CLIPPING        5

#define GFX_CTRL_ZBUFFER         6

#define GFX_CTRL_RECT            8

#define GFX_CTRL_LINE            9

#define GFX_CTRL_TRI             10

#define GFX_CTRL_CURVE           11

#define GFX_CTRL_INTERP          12

#define GFX_CTRL_INSIDE          13

#define GFX_CTRL_ACTIVE_POINT    16

#define GFX_CTRL_FORWARD_POINT   18

#define GFX_CTRL_TRANSFORM_POINT 19

/* ==================== */

/* Status register bits */

/* ==================== */

#define GFX_STAT_BUSY            0