diff options
author | Chia-I Wu <[email protected]> | 2010-04-01 14:20:24 +0800 |
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committer | Chia-I Wu <[email protected]> | 2010-04-01 22:25:48 +0800 |
commit | fc3ddd4b566380e7684c780450016e3e191a4160 (patch) | |
tree | 539e4eb39fb89a9ebb83116deef9c5d5ebc57e4d /progs/egl/openvg/trivial/ellipse.c | |
parent | 7f231cab2b7c13ba70d6aa694f74b6d6eee6470f (diff) |
progs/openvg: Move OpenVG demos to a subdirectory of progs/egl.
That is, move
progs/openvg/demos to progs/egl/openvg,
progs/openvg/trivial to progs/egl/openvg/trivial.
Diffstat (limited to 'progs/egl/openvg/trivial/ellipse.c')
-rw-r--r-- | progs/egl/openvg/trivial/ellipse.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/progs/egl/openvg/trivial/ellipse.c b/progs/egl/openvg/trivial/ellipse.c new file mode 100644 index 00000000000..4c7d4904f81 --- /dev/null +++ b/progs/egl/openvg/trivial/ellipse.c @@ -0,0 +1,84 @@ +#include "eglcommon.h" + +#include <VG/openvg.h> + +#include <math.h> +#include <stdlib.h> + +const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0}; +const VGfloat color[4] = {0.0, 0.0, 0.0, 1.0}; + +VGPath path; +VGPaint paint; + +static void +init(void) +{ + VGfloat clearColor[] = {1.0f, 1.0f, 1.0f, 1.0f};/* white color */ + VGfloat fillColor[] = {1.0f, 0.0f, 0.0f, 1.0f};/* red color */ + static const VGubyte segments[4] = {VG_MOVE_TO_ABS, + VG_SCCWARC_TO_ABS, + VG_SCCWARC_TO_ABS, + VG_CLOSE_PATH}; + VGfloat data[12]; + const VGfloat cx = 0, cy=29, width=80, height=40; + const VGfloat hw = width * 0.5f; + const VGfloat hh = height * 0.5f; + + data[0] = cx + hw; + data[1] = cy; + data[2] = hw; + data[3] = hh; + data[4] = 0; + data[5] = cx - hw; + data[6] = cy; + data[7] = hw; + data[8] = hh; + data[9] = 0; + data[10] = data[0]; + data[11] = cy; + + vgSetfv(VG_CLEAR_COLOR, 4, clearColor); + vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED); + + + path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, + 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL); + if (path == VG_INVALID_HANDLE) { + return; + } + paint = vgCreatePaint(); + if (paint == VG_INVALID_HANDLE) { + vgDestroyPath(path); + return; + } + + vgAppendPathData(path, 4, segments, data); + vgSetParameterfv(paint, VG_PAINT_COLOR, 4, fillColor); + vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR); + vgSetPaint(paint, VG_FILL_PATH); +} + +/* new window size or exposure */ +static void +reshape(int w, int h) +{ +} + +static void +draw(void) +{ + vgClear(0, 0, window_width(), window_height()); + vgLoadIdentity(); + vgTranslate(50, 21); + vgDrawPath(path, VG_FILL_PATH); + vgFlush(); +} + + +int main(int argc, char **argv) +{ + set_window_size(100, 100); + return run(argc, argv, init, reshape, + draw, 0); +} |