85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
#include "eglcommon.h"
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#include <VG/openvg.h>
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#include <math.h>
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#include <stdlib.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] = {0.0, 0.0, 0.0, 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[] = {1.0f, 1.0f, 1.0f, 1.0f};/* white color */
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VGfloat fillColor[] = {1.0f, 0.0f, 0.0f, 1.0f};/* red color */
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static const VGubyte segments[4] = {VG_MOVE_TO_ABS,
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VG_SCCWARC_TO_ABS,
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VG_SCCWARC_TO_ABS,
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VG_CLOSE_PATH};
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VGfloat data[12];
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const VGfloat cx = 0, cy=29, width=80, height=40;
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const VGfloat hw = width * 0.5f;
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const VGfloat hh = height * 0.5f;
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data[0] = cx + hw;
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data[1] = cy;
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data[2] = hw;
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data[3] = hh;
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data[4] = 0;
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data[5] = cx - hw;
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data[6] = cy;
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data[7] = hw;
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data[8] = hh;
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data[9] = 0;
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data[10] = data[0];
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data[11] = cy;
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vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
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vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
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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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if (path == VG_INVALID_HANDLE) {
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return;
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}
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paint = vgCreatePaint();
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if (paint == VG_INVALID_HANDLE) {
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vgDestroyPath(path);
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return;
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}
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vgAppendPathData(path, 4, segments, data);
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vgSetParameterfv(paint, VG_PAINT_COLOR, 4, fillColor);
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vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
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vgSetPaint(paint, VG_FILL_PATH);
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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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}
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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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vgLoadIdentity();
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vgTranslate(50, 21);
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vgDrawPath(path, VG_FILL_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(100, 100);
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return run(argc, argv, init, reshape,
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draw, 0);
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}
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