diff options
Diffstat (limited to 'progs/egl/openvg/trivial/vguarc.c')
-rw-r--r-- | progs/egl/openvg/trivial/vguarc.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/progs/egl/openvg/trivial/vguarc.c b/progs/egl/openvg/trivial/vguarc.c new file mode 100644 index 00000000000..8d971d5c09c --- /dev/null +++ b/progs/egl/openvg/trivial/vguarc.c @@ -0,0 +1,74 @@ +#include "eglcommon.h" + +#include <VG/openvg.h> +#include <VG/vgu.h> + +const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0}; +const VGfloat color[4] = {0.4, 0.1, 1.0, 1.0}; + +VGPath path; +VGPaint paint; + + +static void +init(void) +{ + VGfloat clearColor[] = {0.0f, 0.0f, 0.0f, 1.0f};/* black color */ + VGfloat greenColor[] = {0.0f, 1.0f, 0.0f, 1.0f};/* green color */ + VGint arcType = VGU_ARC_OPEN; + VGfloat x, y, w, h, startAngle, angleExtent; + + x = 150; + y = 150; + w = 150; + h = 150; +#if 0 + startAngle = -540.0f; + angleExtent = 270.0f; +#else + startAngle = 270.0f; + angleExtent = 90.0f; +#endif + + paint = vgCreatePaint(); + + vgSetPaint(paint, VG_STROKE_PATH); + vgSetParameterfv(paint, VG_PAINT_COLOR, 4, greenColor); + vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR); + vgSetf(VG_STROKE_LINE_WIDTH, 6.0f); + vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED); + vgSetfv(VG_CLEAR_COLOR, 4, clearColor); + + path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, + 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL); + + vguArc(path, x, y, w, h, startAngle, angleExtent, arcType); + + vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_BUTT); + vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_BEVEL); + vgSetf(VG_STROKE_MITER_LIMIT, 4.0f); +} + +/* new window size or exposure */ +static void +reshape(int w, int h) +{ + vgLoadIdentity(); +} + +static void +draw(void) +{ + vgClear(0, 0, window_width(), window_height()); + vgDrawPath(path, VG_STROKE_PATH); + + vgFlush(); +} + + +int main(int argc, char **argv) +{ + // set_window_size(64, 63); + return run(argc, argv, init, reshape, + draw, 0); +} |