void display(float interval)
{
VGfloat cc[] = {0,0,0,1};
vgSetfv(VG_CLEAR_COLOR, 4, cc);
vgClear(0,0,testWidth(),testHeight());
vgSeti(VG_MATRIX_MODE, VG_MATRIX_FILL_PAINT_TO_USER);
vgLoadIdentity();
vgTranslate(tx, ty);
vgScale(sx, sy);
vgRotate(a);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_MULTIPLY);
vgLoadIdentity();
vgSetPaint(patternFill, VG_FILL_PATH);
/*vgDrawPath(p, VG_FILL_PATH);*/
vgDrawImage(backImage);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgTranslate(tx, ty);
vgScale(sx, sy);
vgRotate(a);
vgSetPaint(blackFill, VG_FILL_PATH | VG_STROKE_PATH);
vgDrawPath(org, VG_FILL_PATH);
}
void display(float interval)
{
VGfloat cc[] = {0,0,0,1};
vgSetfv(VG_CLEAR_COLOR, 4, cc);
vgClear(0,0,testWidth(),testHeight());
vgSeti(VG_MATRIX_MODE, VG_MATRIX_FILL_PAINT_TO_USER);
vgLoadIdentity();
vgTranslate(tx, ty);
vgRotate(ang);
vgScale(sx, sy);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgSetPaint(radialFill, VG_FILL_PATH);
vgDrawPath(p, VG_FILL_PATH);
vgTranslate(tx, ty);
vgRotate(ang);
vgScale(sx, sy);
vgSetPaint(blackFill, VG_FILL_PATH | VG_STROKE_PATH);
vgDrawPath(radius, VG_STROKE_PATH);
vgDrawPath(center, VG_STROKE_PATH);
vgDrawPath(focus, VG_FILL_PATH);
}
//Display functions
void display(float interval)
{
int i;
const VGfloat *style;
VGfloat clearColor[] = {1,1,1,1};
if (animate) {
ang += interval * 360 * 0.1f;
if (ang > 360) ang -= 360;
}
vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
vgClear(0,0,testWidth(),testHeight());
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgTranslate(testWidth()/2 + tx,testHeight()/2 + ty);
vgScale(sx, sy);
vgRotate(ang);
for (i=0; i<pathCount; ++i) {
style = styleArrays[i];
vgSetParameterfv(tigerStroke, VG_PAINT_COLOR, 4, &style[0]);
vgSetParameterfv(tigerFill, VG_PAINT_COLOR, 4, &style[4]);
vgSetf(VG_STROKE_LINE_WIDTH, style[8]);
vgDrawPath(tigerPaths[i], (VGint)style[9]); // Bingo!!, Draw it!!
}
vgFlush();
}
void render(int w, int h)
{
{
float clearColor[4] = {1,1,1,1};
float scale = w / (tigerMaxX - tigerMinX);
eglSwapBuffers(egldisplay, eglsurface); //force EGL to recognize resize
vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
vgClear(0, 0, w, h);
vgLoadIdentity();
vgTranslate(w * 0.5f, h * 0.5f);
vgRotate(rotateN);
vgTranslate(-w * 0.5f, -h * 0.5f);
vgScale(scale, scale);
vgTranslate(-tigerMinX, -tigerMinY + 0.5f * (h / scale - (tigerMaxY - tigerMinY)));
PS_render(tiger);
assert(vgGetError() == VG_NO_ERROR);
renderWidth = w;
renderHeight = h;
}
}
/*******************************************************************************
* Function Name : DoRotateOrigin
* Description : Demonstrate the effect of rotating around the origin.
*******************************************************************************/
void CTransforms::DoRotateOrigin()
{
// Make sure we're operating on the path user-to-surface matrix
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
// Load Identity matrix. This clears all previous transformations
vgLoadIdentity();
// To be independent of screen resolution, we need to scale the
// coordinates so everything in the range [0, 1] will be visible
vgScale((float)PVRShellGet(prefWidth), (float)PVRShellGet(prefHeight));
// turn time(ms) into a periodic triangle function
int i32Zigzag = m_ui32AbsTime % 2000;
if(i32Zigzag > 1000)
i32Zigzag = 2000 - i32Zigzag;
i32Zigzag = PVRT_MAX(100, PVRT_MIN(900, i32Zigzag));
vgRotate((i32Zigzag - 350) / 15.0f);
// draw first path
vgDrawPath(m_avgPaths[0], VG_STROKE_PATH | VG_FILL_PATH);
// draw second path
vgDrawPath(m_avgPaths[1], VG_STROKE_PATH | VG_FILL_PATH);
}
// C function:: void vgRotate(VGfloat angle);
JNIEXPORT jint JNICALL
Java_com_example_startvg_VG11_vgRotate(
JNIEnv* env, jobject obj,
jfloat angle){
vgRotate(
(VGfloat) angle
);
}
/*******************************************************************************
* Function Name : DoRotateCentered
* Description : Demonstrate the effect of rotating around the centre of a
* shape. Each path is transformed separately.
*******************************************************************************/
void CTransforms::DoRotateCentered()
{
// Make sure we're operating on the path user-to-surface matrix
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
// Load Identity matrix. This clears all previous transformations
vgLoadIdentity();
// To be independent of screen resolution, we need to scale the
// coordinates so everything in the range [0, 1] will be visible
vgScale((float)PVRShellGet(prefWidth), (float)PVRShellGet(prefHeight));
// Unlike OpenGL, OpenVG does not maintain a matrix stack. So instead of
// pushing the current matrix to the stack, we have to store it ourselves
float afUnitMatrix[3*3];
vgGetMatrix(afUnitMatrix);
float fRotationAngle = m_ui32AbsTime * 0.03f;
// Scaling a shape from its center is identical to moving it to the
// origin, scaling it there, and moving it back where it was.
//
// IMPORTANT:
// Since OpenVG right-multiplies matrices, you conceptually need to
// call the transformation functions in backwards order.
vgTranslate(0.5f, 0.75f);
vgRotate(fRotationAngle);
vgTranslate(-0.5f, -0.75f);
// draw first path
vgDrawPath(m_avgPaths[0], VG_STROKE_PATH | VG_FILL_PATH);
// restore the unit matrix ([0, 1] visible)
vgLoadMatrix(afUnitMatrix);
// transformation for second path
vgTranslate(0.5f, 0.25f);
vgRotate(-fRotationAngle);
vgTranslate(-0.5f, -0.25f);
// draw second path
vgDrawPath(m_avgPaths[1], VG_STROKE_PATH | VG_FILL_PATH);
}
void CNVGCSIcon::SetRotation()
{
if (iRotationAngle)
{
vgTranslate(iRotationX, iRotationY);
vgRotate(iRotationAngle);
vgTranslate(-iRotationX, -iRotationY);
}
}
int render(int width, int height)
{
static DWORD startTick =0;
static DWORD frames = 0;
VGImage image;
char buf[256];
if((startTick == 0)||(frames > 50))
{
if(frames > 50)
frames = 0;
startTick = GetTickCount();
frames++;
}
else
{
sprintf(buf, "fps:%2.2f frames/sec \n", (float)(frames++)*1000/(GetTickCount() - startTick));
OutputDebugString(buf);
}
if(pReadFile == NULL)
{
pReadFile = fopen("test.rgb","rb");
if(pReadFile)
fseek(pReadFile, 0 , SEEK_SET);
}
if(pReadFile && (feof(pReadFile)))
fseek(pReadFile, 0 , SEEK_SET);
if(pReadFile)
fread(pBuff, sizeof(BYTE),SRC_WIDTH*SRC_HEIGHT*2,pReadFile);
image = vgCreateImage( VG_sRGB_565, SRC_WIDTH, SRC_HEIGHT, VG_IMAGE_QUALITY_BETTER );
if(image == NULL)
return -1;
vgImageSubData( image, pBuff, SRC_WIDTH*2, VG_sRGB_565, 0, 0, SRC_WIDTH, SRC_HEIGHT);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
vgLoadIdentity();
vgScale((VGfloat)width/SRC_WIDTH, (VGfloat)height/SRC_HEIGHT);
vgTranslate(SRC_WIDTH, SRC_HEIGHT);
vgRotate(180.0f);
vgDrawImage( image );
vgDestroyImage( image );
if ( vgGetError() == VG_NO_ERROR )
eglSwapBuffers( egldisplay, eglsurface );
return 0;
}
static void
draw(void)
{
vgClear(0, 0, width, height);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgTranslate(width/2, height/2);
vgRotate(angle);
vgTranslate(-width/2, -height/2);
lion_render(lion);
++angle;
eglutPostRedisplay();
}
void CTSmallWindowOpenVG::RenderL()
{
CTWindow::RenderL();
// Make sure that this egl status is active
eglMakeCurrent(iDisplay, iSurface, iSurface, iContextVG);
VGfloat clearColor[4] = {0.1f, 0.2f, 0.4f, 1.f};
VGfloat scaleFactor = Size().iWidth/200.f;
if (Size().iHeight/200.f < scaleFactor)
{
scaleFactor = Size().iHeight/200.f;
}
iCurrentRotation = iTime;
if (iCurrentRotation >= 360.f)
{
iCurrentRotation -= 360.f;
}
vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
vgClear(0, 0, Size().iWidth, Size().iHeight);
vgLoadIdentity();
vgTranslate((float)Size().iHeight / 2, (float)Size().iHeight / 2);
vgScale(scaleFactor, scaleFactor);
vgRotate(iCurrentRotation);
vgTranslate(-50.f, -50.f);
vgSeti(VG_BLEND_MODE, VG_BLEND_SRC_OVER);
vgSeti(VG_FILL_RULE, VG_EVEN_ODD);
vgSetPaint(iFillPaint, VG_FILL_PATH);
vgSetf(VG_STROKE_LINE_WIDTH, 10.f);
vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_ROUND);
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND);
vgSetf(VG_STROKE_MITER_LIMIT, 0.f);
vgSetPaint(iStrokePaint, VG_STROKE_PATH);
vgDrawPath(iPath, VG_FILL_PATH | VG_STROKE_PATH);
iTime++;
eglSwapBuffers(iDisplay, iSurface);
}
// Rotate around angle r
void Rotate(VGfloat r) {
vgRotate(r);
}
