75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
#include "eglcommon.h"
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#include <VG/openvg.h>
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#include <VG/vgu.h>
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const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0};
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const VGfloat color[4] = {0.4, 0.1, 1.0, 1.0};
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VGPath path;
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VGPaint paint;
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static void
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init(void)
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{
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VGfloat clearColor[] = {0.0f, 0.0f, 0.0f, 1.0f};/* black color */
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VGfloat greenColor[] = {0.0f, 1.0f, 0.0f, 1.0f};/* green color */
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VGint arcType = VGU_ARC_OPEN;
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VGfloat x, y, w, h, startAngle, angleExtent;
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x = 150;
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y = 150;
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w = 150;
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h = 150;
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#if 0
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startAngle = -540.0f;
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angleExtent = 270.0f;
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#else
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startAngle = 270.0f;
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angleExtent = 90.0f;
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#endif
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paint = vgCreatePaint();
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vgSetPaint(paint, VG_STROKE_PATH);
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vgSetParameterfv(paint, VG_PAINT_COLOR, 4, greenColor);
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vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
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vgSetf(VG_STROKE_LINE_WIDTH, 6.0f);
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vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
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vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
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path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
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1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL);
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vguArc(path, x, y, w, h, startAngle, angleExtent, arcType);
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vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_BUTT);
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vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_BEVEL);
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vgSetf(VG_STROKE_MITER_LIMIT, 4.0f);
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}
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/* new window size or exposure */
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static void
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reshape(int w, int h)
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{
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vgLoadIdentity();
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}
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static void
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draw(void)
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{
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vgClear(0, 0, window_width(), window_height());
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vgDrawPath(path, VG_STROKE_PATH);
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vgFlush();
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}
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int main(int argc, char **argv)
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{
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// set_window_size(64, 63);
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return run(argc, argv, init, reshape,
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draw, 0);
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}
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