Vector path opcodes for plotting paths
The following opcodes are path drawing commands available for vector path data.
A path operation is submitted to the GPU as [Opcode | Coordinates]. The operation code is stored as a VG_LITE_S8 while the coordinates are specified via vg_lite_format_t.
Opcode |
Arguments |
Description |
|---|---|---|
0x00 |
None |
VLC_OP_END. Finish tessellation. Close any open path. |
0x01 |
None |
VLC_OP_CLOSE. For VGLite driver internal use only. Application should not use this OP directly. |
0x02 |
(x, y) |
|
0x03 |
(∆x, ∆y) |
|
0x04 |
(x, y) |
|
0x05 |
(∆x, ∆y) |
|
0x06 |
(cx, cy) (x, y) |
|
0x07 |
(∆cx, ∆cy) (∆x, ∆y) |
|
0x08 |
(cx-1, cy1) (cx2, cy2) (x, y) |
|
0x09 |
(∆cx-1, ∆cy1) (∆cx2, ∆cy2) (∆x, ∆y) |
|
0x0A |
None |
VLC_OP_BREAK. Indicates 64-bit path data (including the opcode) is a no-op. |
0x0B |
(x) |
|
0x0C |
(∆x) |
|
0x0D |
(y) |
|
0x0E |
(∆y) |
|
0x0F |
(x,y) |
|
0x10 |
(∆x,∆y) |
|
0x11 |
(cx2,cy2) (x,y) |
|
0x12 |
(∆cx2,∆cy2) (∆x,∆y) |
|
0x13 |
(rh,rv,rot,x,y) |
|
0x14 |
(rh,rv,rot,x,y) |
|
0x15 |
(rh,rv,rot,x,y) |
|
0x16 |
(rh,rv,rot,x,y) |
|
0x17 |
(rh,rv,rot,x,y) |
|
0x18 |
(rh,rv,rot,x,y) |
|
0x19 |
(rh,rv,rot,x,y) |
|
0x1A |
(rh,rv,rot,x,y) |
|
Parent topic:Vector path control