int main(int argc, char **argv)
{
testInit(argc, argv, 400,400, "ShivaVG: Radial Gradient Test");
testCallback(TEST_CALLBACK_DISPLAY, (CallbackFunc)display);
testCallback(TEST_CALLBACK_BUTTON, (CallbackFunc)click);
testCallback(TEST_CALLBACK_DRAG, (CallbackFunc)drag);
testCallback(TEST_CALLBACK_KEY, (CallbackFunc)key);
p = testCreatePath();
center = testCreatePath();
focus = testCreatePath();
radius = testCreatePath();
cx = testWidth()/2;
cy = testHeight()/2;
fx = cx;
fy = cy;
r = sqx/2;
radialFill = vgCreatePaint();
blackFill = vgCreatePaint();
vgSetParameterfv(blackFill, VG_PAINT_COLOR, 4, black);
createSquare(p);
createRadial();
testOverlayString("Press H for a list of commands");
testOverlayColor(1,1,1,1);
testRun();
return EXIT_SUCCESS;
}
int main(int argc, char **argv)
{
testInit(argc, argv, 400,400, "ShivaVG: Linear Gradient Test");
testCallback(TEST_CALLBACK_DISPLAY, (CallbackFunc)display);
testCallback(TEST_CALLBACK_BUTTON, (CallbackFunc)click);
testCallback(TEST_CALLBACK_DRAG, (CallbackFunc)drag);
testCallback(TEST_CALLBACK_KEY, (CallbackFunc)key);
testCallback(TEST_CALLBACK_RESHAPE, (CallbackFunc)reshape);
p = testCreatePath();
org = testCreatePath();
blackFill = vgCreatePaint();
vgSetParameterfv(blackFill, VG_PAINT_COLOR, 4, black);
backImage = createImageFromJpeg(IMAGE_DIR"test_img_violin.jpg");
patternImage = createImageFromJpeg(IMAGE_DIR"test_img_shivavg.jpg");
patternFill = vgCreatePaint();
createSquare(p);
createOrigin(org);
createPattern();
testOverlayString("Press H for a list of commands");
testOverlayColor(1,1,1,1);
testRun();
return EXIT_SUCCESS;
}
void loadTiger()
{
int i;
VGPath temp;
temp = testCreatePath();
tigerPaths = (VGPath*)malloc(pathCount * sizeof(VGPath));
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgTranslate(-100,100);
vgScale(1,-1);
for (i=0; i<pathCount; ++i) {
vgClearPath(temp, VG_PATH_CAPABILITY_ALL);
vgAppendPathData(temp, commandCounts[i],
commandArrays[i], dataArrays[i]);
tigerPaths[i] = testCreatePath();
vgTransformPath(tigerPaths[i], temp);
}
tigerStroke = vgCreatePaint();
tigerFill = vgCreatePaint();
vgSetPaint(tigerStroke, VG_STROKE_PATH);
vgSetPaint(tigerFill, VG_FILL_PATH);
vgLoadIdentity();
vgDestroyPath(temp);
}
void CNVGCSIcon::ConstructL(const TDesC8& aBuf)
{
iNVGIconData = CNVGIconData::NewL(aBuf.Length());
iOpenVGHandles = COpenVGHandleStore::NewL();
if (iPath == VG_INVALID_HANDLE)
{
iPath = vgCreatePath(VG_PATH_FORMAT_STANDARD,
VG_PATH_DATATYPE_S_32, 1.0f/65536.0f, 0.0f, 0, 0,
VG_PATH_CAPABILITY_APPEND_TO);
iOpenVGHandles->AddPathDHL(iPath);
}
if (iFillPaint == VG_INVALID_HANDLE)
{
iFillPaint = vgCreatePaint();
iOpenVGHandles->AddPaintDHL(iFillPaint);
}
vgSetPaint(iFillPaint, VG_FILL_PATH);
if (iStrokePaint == VG_INVALID_HANDLE)
{
iStrokePaint = vgCreatePaint();
iOpenVGHandles->AddPaintDHL(iStrokePaint);
}
vgSetPaint(iStrokePaint, VG_STROKE_PATH);
}
static void initialise_renderer(envelope_render_internal_t *renderer)
{
renderer->state.display_update = 1;
renderer->state.line_paint = vgCreatePaint();
vgSetParameteri(renderer->state.line_paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetParameterfv(renderer->state.line_paint, VG_PAINT_COLOR, 4, renderer->definition.line_colour);
renderer->state.text_paint = vgCreatePaint();
vgSetParameteri(renderer->state.text_paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetParameterfv(renderer->state.text_paint, VG_PAINT_COLOR, 4, renderer->definition.text_colour);
renderer->state.path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_S_16, 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_APPEND_TO);
}
static void initialise_renderer(setting_render_internal_t* renderer)
{
renderer->state.display_update = 1;
renderer->state.text_paint = vgCreatePaint();
vgSetParameteri(renderer->state.text_paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetParameterfv(renderer->state.text_paint, VG_PAINT_COLOR, 4, renderer->definition.text_colour);
}
struct TEXT_WIDGET_HANDLE text_widget_init ( float x_mm, float y_mm,
float width_mm,
float height_mm,
float dpmm_x,
float dpmm_y )
{
struct TEXT_WIDGET_HANDLE handle;
handle.d = malloc( sizeof( struct TEXT_WIDGET_PRIVATE ) );
handle.d->x_mm = x_mm;
handle.d->y_mm = y_mm;
handle.d->dpmm_x = dpmm_x;
handle.d->dpmm_y = dpmm_y;
handle.d->font_map = pango_ft2_font_map_new();
// Note: FreeType works in DPI.
pango_ft2_font_map_set_resolution( (PangoFT2FontMap*)handle.d->font_map,
dpmm_x * 25.4, dpmm_y * 25.4 );
handle.d->context = pango_font_map_create_context( handle.d->font_map );
handle.d->layout = pango_layout_new( handle.d->context );
// Pango works in Pango Units. Not exactly clear how the resolution of
// the font and the size of the rendering box fit together.
int width = pango_units_from_double( dpmm_x * width_mm );
int height = pango_units_from_double( dpmm_y * height_mm );
pango_layout_set_width( handle.d->layout, width );
pango_layout_set_height( handle.d->layout, height );
handle.d->foreground = vgCreatePaint();
vgSetParameterfv( handle.d->foreground, VG_PAINT_COLOR, 4, DEFAULT_FOREGROUND );
return handle;
}
// setfill sets the fill color
void setfill(VGfloat color[4]) {
VGPaint fillPaint = vgCreatePaint();
vgSetParameteri(fillPaint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetParameterfv(fillPaint, VG_PAINT_COLOR, 4, color);
vgSetPaint(fillPaint, VG_FILL_PATH);
vgDestroyPaint(fillPaint);
}
/*******************************************************************************
* Function Name : InitView
* Inputs : uWidth, uHeight
* Returns : true if no error occured
* Description : Code in InitView() will be called by the Shell upon a change
* in the rendering context.
* Used to initialise variables that are dependent on the rendering
* context (e.g. textures, vertex buffers, etc.)
*******************************************************************************/
bool CTransforms::InitView()
{
// Create paths
CreatePaths();
// Create paint
m_vgPaint = vgCreatePaint();
vgSetParameteri(m_vgPaint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(m_vgPaint, PVRTRGBA(255, 255, 170, 255));
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND);
vgSetf(VG_STROKE_LINE_WIDTH, 2.5f / PVRShellGet(prefHeight));
/*
The clear colour will be used whenever calling vgClear(). The colour is given
as non-premultiplied sRGBA.
*/
VGfloat afClearColour[] = { 0.6f, 0.8f, 1.0f, 1.0f };
vgSetfv(VG_CLEAR_COLOR, 4, afClearColour);
// Initialise custom text drawing
m_PrintVG.Initialize(PVRShellGet(prefWidth), PVRShellGet(prefHeight));
m_ui32StartTime = PVRShellGetTime();
return true;
}
// setstroke sets the stroke color
void setstroke(VGfloat color[4]) {
VGPaint strokePaint = vgCreatePaint();
vgSetParameteri(strokePaint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetParameterfv(strokePaint, VG_PAINT_COLOR, 4, color);
vgSetPaint(strokePaint, VG_STROKE_PATH);
vgDestroyPaint(strokePaint);
}
static void draw_point(VGfloat x, VGfloat y)
{
static const VGubyte cmds[] = {VG_MOVE_TO_ABS, VG_LINE_TO_ABS, VG_LINE_TO_ABS,
VG_LINE_TO_ABS, VG_CLOSE_PATH};
const VGfloat coords[] = { x - 2, y - 2,
x + 2, y - 2,
x + 2, y + 2,
x - 2, y + 2};
VGPath path;
VGPaint fill;
path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0,
VG_PATH_CAPABILITY_ALL);
vgAppendPathData(path, 5, cmds, coords);
fill = vgCreatePaint();
vgSetParameterfv(fill, VG_PAINT_COLOR, 4, black_color);
vgSetPaint(fill, VG_FILL_PATH);
vgDrawPath(path, VG_FILL_PATH);
vgDestroyPath(path);
vgDestroyPaint(fill);
}
void SubtitleRenderer::
draw_text(VGFont font, VGFont italic_font,
const std::vector<SubtitleRenderer::InternalChar>& text,
int x, int y,
unsigned int lightness) {
VGPaint paint = vgCreatePaint();
assert(paint);
vgSetColor(paint, (lightness<<8) | (lightness<<16) | (lightness<<24) | 0xFF);
assert(!vgGetError());
vgSetPaint(paint, VG_FILL_PATH);
assert(!vgGetError());
vgDestroyPaint(paint);
assert(!vgGetError());
vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_MULTIPLY);
assert(!vgGetError());
VGfloat pos[] = {static_cast<VGfloat>(x), static_cast<VGfloat>(y)};
vgSetfv(VG_GLYPH_ORIGIN, 2, pos);
assert(!vgGetError());
for (auto c = text.begin(); c != text.end(); ++c) {
vgDrawGlyph(c->italic ? italic_font : font,
c->codepoint,
VG_FILL_PATH,
VG_FALSE);
assert(!vgGetError());
}
}
// LinearGradient fills with a linear gradient
void FillLinearGradient(VGfloat x1, VGfloat y1, VGfloat x2, VGfloat y2, VGfloat * stops, int ns) {
VGfloat lgcoord[4] = { x1, y1, x2, y2 };
VGPaint paint = vgCreatePaint();
vgSetParameteri(paint, VG_PAINT_TYPE, VG_PAINT_TYPE_LINEAR_GRADIENT);
vgSetParameterfv(paint, VG_PAINT_LINEAR_GRADIENT, 4, lgcoord);
setstop(paint, stops, ns);
vgDestroyPaint(paint);
}
// RadialGradient fills with a linear gradient
void FillRadialGradient(VGfloat cx, VGfloat cy, VGfloat fx, VGfloat fy, VGfloat radius, VGfloat * stops, int ns) {
VGfloat radialcoord[5] = { cx, cy, fx, fy, radius };
VGPaint paint = vgCreatePaint();
vgSetParameteri(paint, VG_PAINT_TYPE, VG_PAINT_TYPE_RADIAL_GRADIENT);
vgSetParameterfv(paint, VG_PAINT_RADIAL_GRADIENT, 5, radialcoord);
setstop(paint, stops, ns);
vgDestroyPaint(paint);
}
static void setVGSolidColor(VGPaintMode paintMode, const Color& color)
{
VGPaint paint = vgCreatePaint();
vgSetParameteri(paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(paint, colorToVGColor(color));
vgSetPaint(paint, paintMode);
vgDestroyPaint(paint);
ASSERT_VG_NO_ERROR();
}
void OpenVG_SVGHandler::onPathFillColor( unsigned int color ) {
if( _mode == kGroupParseMode ) {
_current_group->fill = vgCreatePaint();
VGfloat fcolor[4] = { VGfloat( (color & 0xff000000) >> 24)/255.0f,
VGfloat( (color & 0x00ff0000) >> 16)/255.0f,
VGfloat( (color & 0x0000ff00) >> 8)/255.0f,
_use_opacity };
vgSetParameterfv( _current_group->fill, VG_PAINT_COLOR, 4, &fcolor[0]);
} else {
/****************************************************************************
** InitView() is called by PVRShell each time a rendering variable is changed
** in the Shell menu (Z-Buffer On/Off, resolution change, buffering mode...)
** In this function one should initialise all variables that are dependant on
** general rendering variables (screen mode, 3D device, etc...)
****************************************************************************/
bool CIntroducingPVRShell::InitView()
{
/*
Initially, the OpenVG coordinate system is based on the output resolution.
To get a device independent coordinate system, we need to apply a
transformation. Scaling by the output resolution means that coordinates
between (0, 0) and (1, 1) will be visible on screen.
It should be noted, however, that different aspect ratios usually require
special attention regarding the layout of elements on screen.
*/
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgScale((float)PVRShellGet(prefWidth), (float)PVRShellGet(prefHeight));
/*
Drawing shapes with OpenVG requires a path which represents a series of
line and curve segments describing the outline of the shape. The shape
does not need to be closed, but for now we will start with a simple
triangle.
First we create a path object, then we append segment and point data.
*/
m_vgPath = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
1.0f, 0.0f, 4, 3, (unsigned int)VG_PATH_CAPABILITY_ALL);
VGubyte aui8PathSegments[4] = {
VG_MOVE_TO_ABS,
VG_LINE_TO_ABS,
VG_LINE_TO_ABS,
VG_CLOSE_PATH,
};
VGfloat afPoints[6] = {
0.3f, 0.3f,
0.7f, 0.3f,
0.5f, 0.7f,
};
vgAppendPathData(m_vgPath, 4, aui8PathSegments, afPoints);
/*
To fill a shape, we need a paint that describes how to fill it: a gradient,
pattern, or single colour. Here we choose a simple opaque red.
*/
m_vgFillPaint = vgCreatePaint();
vgSetParameteri(m_vgFillPaint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(m_vgFillPaint, PVRTRGBA(255,255,170,255));
/*
The clear colour will be used whenever calling vgClear(). The colour is given
as non-premultiplied sRGBA.
*/
VGfloat afClearColour[] = { 0.6f, 0.8f, 1.0f, 1.0f };
vgSetfv(VG_CLEAR_COLOR, 4, afClearColour);
return true;
}
BoxRenderer(unsigned int opacity) {
path_ = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
1.0, 0.0,
0, 0,
VG_PATH_CAPABILITY_ALL);
assert(path_);
paint_ = vgCreatePaint();
assert(paint_);
vgSetColor(paint_, opacity);
assert(!vgGetError());
}
static void
draw(void)
{
VGint WINDSIZEX = window_width();
VGint WINDSIZEY = window_height();
VGPaint fill;
VGPath box;
VGfloat color[4] = {1.f, 0.f, 0.f, 1.f};
VGfloat bgCol[4] = {0.7f, 0.7f, 0.7f, 1.0f};
VGfloat transCol[4] = {0.f, 0.f, 0.f, 0.f};
VGImage image = vgCreateImage(VG_sRGBA_8888, img_width, img_height,
VG_IMAGE_QUALITY_NONANTIALIASED);
/* Background clear */
fill = vgCreatePaint();
vgSetParameterfv(fill, VG_PAINT_COLOR, 4, color);
vgSetPaint(fill, VG_FILL_PATH);
box = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
1, 0, 0, 0, VG_PATH_CAPABILITY_ALL);
/* Rectangle to cover completely 16x16 pixel area. */
RectToPath(box, 0, 0, 64, 64);
vgSetfv(VG_CLEAR_COLOR, 4, transCol);
vgClearImage(image, 0, 0, img_width, img_height);
vgSetfv(VG_CLEAR_COLOR, 4, color);
vgClearImage(image, 10, 10, 12, 12);
//vgImageSubData(image, pukki_64x64_data, pukki_64x64_stride,
// VG_sRGBA_8888, 0, 0, 32, 32);
vgSeti(VG_MASKING, VG_TRUE);
vgLoadIdentity();
vgSetfv(VG_CLEAR_COLOR, 4, bgCol);
vgClear(0, 0, WINDSIZEX, WINDSIZEY);
vgMask(image, VG_FILL_MASK, 0, 0, window_width(), window_height());
vgMask(image, VG_SET_MASK, x_pos, y_pos, 100, 100);
vgDrawPath(box, VG_FILL_PATH);
//vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
//vgTranslate(-10, -10);
//vgDrawImage(image);
vgDestroyPaint(fill);
vgDestroyPath(box);
}
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);
}
OpenVG_SVGHandler::OpenVG_SVGHandler()
: ISVGHandler()
, _mode( kGroupParseMode )
, _current_group( &_root_group )
, _blackBackFill( 0 )
, _batch( 0 )
, _use_opacity( 1 )
, _has_transparent_colors( false )
{
_blackBackFill = vgCreatePaint();
VGfloat fcolor[4] = { 0,0,0,1 };
vgSetParameterfv( _blackBackFill, VG_PAINT_COLOR, 4, &fcolor[0]);
_use_transform.setIdentity();
//_root_transform.setScale( 1, -1 );
}
static void
draw(void)
{
VGPath line;
VGPaint fillPaint;
VGubyte lineCommands[3] = {VG_MOVE_TO_ABS, VG_LINE_TO_ABS, VG_LINE_TO_ABS};
VGfloat lineCoords[] = {-2.0f,-1.0f, 0.0f,0.0f, -1.0f, -2.0f};
VGfloat clearColor[] = {0.0f, 0.0f, 0.0f, 1.0f};/* black color */
VGfloat fillColor[] = {1.0f, 1.0f, 1.0f, 1.0f};/* white color */
//VGfloat testRadius = 60.0f;
VGfloat testRadius = 10.0f;
int WINDSIZEX = window_width();
int WINDSIZEY = window_height();
line = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL);
fillPaint = vgCreatePaint();
vgSetf(VG_STROKE_LINE_WIDTH, 1.0f);
//vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_ROUND);
vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_BUTT);
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND);
//vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_BEVEL);
vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_BETTER);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgTranslate(60, 60);
vgScale(testRadius * 2, testRadius * 2);
vgAppendPathData(line, 3, lineCommands, lineCoords);
vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
vgSetPaint(fillPaint, VG_STROKE_PATH);
vgSetParameterfv(fillPaint, VG_PAINT_COLOR, 4, fillColor);
vgSetParameteri( fillPaint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgClear(0, 0, WINDSIZEX, WINDSIZEY);
vgDrawPath(line, VG_STROKE_PATH);
vgDestroyPath(line);
vgDestroyPaint(fillPaint);
}
VGPath SurfaceOpenVG::cachedPaint(CachedPaintDescriptor which)
{
Vector<VGPaint>& paints = cachedPaints();
if (paints.isEmpty()) {
paints.resize(CachedPaintCount);
paints.fill(VG_INVALID_HANDLE);
}
if (paints.at(which) == VG_INVALID_HANDLE) {
sharedSurface()->makeCurrent();
paints.at(which) = vgCreatePaint();
ASSERT_VG_NO_ERROR();
makeCurrent();
}
return paints.at(which);
}
static void
init(void)
{
static const VGubyte cmds[6] = {VG_MOVE_TO_ABS, VG_LINE_TO_ABS, VG_LINE_TO_ABS, VG_LINE_TO_ABS,
VG_LINE_TO_ABS, VG_CLOSE_PATH};
static const VGfloat coords[] = { 0, 200,
300, 200,
50, 0,
150, 300,
250, 0};
path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0,
VG_PATH_CAPABILITY_ALL);
vgAppendPathData(path, 6, cmds, coords);
fill = vgCreatePaint();
vgSetParameterfv(fill, VG_PAINT_COLOR, 4, green_color);
vgSetPaint(fill, VG_FILL_PATH);
vgSetfv(VG_CLEAR_COLOR, 4, white_color);
}
int main(int argc, char **argv)
{
float rotate, color[4] = {0.0, 0.33, 0.33, 1.0};
VGPath path;
VGPaint paintStroke;
VGubyte pathSegments[] = {VG_MOVE_TO_ABS, VG_LINE_TO_ABS, VG_CLOSE_PATH};
float pathData[] = {200.0, 300.0, 100.0, 100.0};
float incData[] = { 1.0, 2.0, -2.5, -0.5};
EGLDisplayState *eglState = eglOpenDisplay(0 /* min win dimension */,
8 /* min color component size */,
8 /* min alpha size */,
0 /* min Z depth */,
EGL_OPENVG_BIT /* render type */);
path = vgCreatePath(VG_PATH_FORMAT_STANDARD,
VG_PATH_DATATYPE_F,
1.0, 0.0,
0, 0,
VG_PATH_CAPABILITY_APPEND_TO | VG_PATH_CAPABILITY_MODIFY);
vgAppendPathData(path, 3, pathSegments, pathData);
paintStroke = vgCreatePaint();
vgSetColor(paintStroke, 0x00FF00FF);
vgSetParameteri(paintStroke, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetPaint(paintStroke, VG_STROKE_PATH | VG_FILL_PATH);
vgSetf(VG_STROKE_LINE_WIDTH, 5.0);
vgLoadIdentity();
for (rotate = 0.0; rotate < 1000.0; rotate++) {
color[0] = rotate / 1000.0;
vgSetfv(VG_CLEAR_COLOR, 4, color);
vgClear(0, 0, eglState->win.width, eglState->win.height);
bounce(2, pathData, incData, eglState->win.width, eglState->win.height);
vgModifyPathCoords(path, 0, 3, pathData);
vgDrawPath(path, VG_STROKE_PATH);
eglUpdateDisplay(eglState);
}
eglCloseDisplay(eglState);
}
static void
init(void)
{
static const VGubyte sqrCmds[5] = {VG_MOVE_TO_ABS, VG_HLINE_TO_ABS, VG_VLINE_TO_ABS, VG_HLINE_TO_ABS, VG_CLOSE_PATH};
static const VGfloat sqrCoords[5] = {50.0f, 50.0f, 250.0f, 250.0f, 50.0f};
path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0,
VG_PATH_CAPABILITY_APPEND_TO);
vgAppendPathData(path, 5, sqrCmds, sqrCoords);
fill = vgCreatePaint();
vgSetParameterfv(fill, VG_PAINT_COLOR, 4, color);
vgSetPaint(fill, VG_FILL_PATH);
vgSetfv(VG_CLEAR_COLOR, 4, white_color);
vgSetf(VG_STROKE_LINE_WIDTH, 10);
vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_BUTT);
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND);
vgSetf(VG_STROKE_MITER_LIMIT, 4.0f);
vgSeti(VG_MASKING, VG_TRUE);
vgMask(VG_INVALID_HANDLE, VG_CLEAR_MASK,
25, 25, 100, 100);
}
LRESULT OnPaint(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
VGPaint strokePaint = vgCreatePaint();
vgSetPaint(strokePaint, VG_STROKE_PATH);
VGfloat color[4] = { 1.0f, 0.0f, 0.0f, 1.0f };
vgSetParameterfv(strokePaint, VG_PAINT_COLOR, 4, &color[0]);
VGPath line = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0, VG_PATH_CAPABILITY_ALL);
vguLine(line, 20, 20, 130, 130);
VGPath square = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0, VG_PATH_CAPABILITY_ALL);
vguRect(square, 10.0f, 10.0f, 130.0f, 50.0f);
vgSetf(VG_STROKE_LINE_WIDTH, 7.0f);
vgDrawPath(line, VG_STROKE_PATH);
vgDrawPath(square, VG_STROKE_PATH);
::ValidateRect(hWnd, NULL);
return 0;
}
/** Render text.
*
* FIXME: Not at all optimal - re-renders each time.
* FIXME: Not UTF-8 aware
* FIXME: better caching
*/
VCOS_STATUS_T gx_priv_render_text( GX_DISPLAY_T *disp,
GRAPHICS_RESOURCE_HANDLE res,
uint32_t x,
uint32_t y,
uint32_t width,
uint32_t height,
uint32_t fg_colour,
uint32_t bg_colour,
const char *text,
uint32_t text_length,
uint32_t text_size )
{
VGfloat vg_colour[4];
VGFT_FONT_T *font;
VGPaint fg;
GX_CLIENT_STATE_T save;
VCOS_STATUS_T status = VCOS_SUCCESS;
int clip = 1;
vcos_demand(inited); // has gx_font_init() been called?
gx_priv_save(&save, res);
if (width == GRAPHICS_RESOURCE_WIDTH &&
height == GRAPHICS_RESOURCE_HEIGHT)
{
clip = 0;
}
width = (width == GRAPHICS_RESOURCE_WIDTH) ? res->width : width;
height = (height == GRAPHICS_RESOURCE_HEIGHT) ? res->height : height;
font = find_font(text, text_size);
if (!font)
{
status = VCOS_ENOMEM;
goto finish;
}
// setup the clipping rectangle
if (clip)
{
VGint coords[] = {x,y,width,height};
vgSeti(VG_SCISSORING, VG_TRUE);
vgSetiv(VG_SCISSOR_RECTS, 4, coords);
}
// setup the background colour if needed
if (bg_colour != GRAPHICS_TRANSPARENT_COLOUR)
{
int err;
VGfloat rendered_w, rendered_h;
VGfloat vg_bg_colour[4];
// setup the background colour...
gx_priv_colour_to_paint(bg_colour, vg_bg_colour);
vgSetfv(VG_CLEAR_COLOR, 4, vg_bg_colour);
// fill in a rectangle...
vgft_get_text_extents(font, text, text_length, (VGfloat)x, (VGfloat)y, &rendered_w, &rendered_h);
if ( ( 0 < (VGint)rendered_w ) && ( 0 < (VGint)rendered_h ) )
{
vgClear(x, y, (VGint)rendered_w, (VGint)rendered_h);
err = vgGetError();
if (err)
{
GX_LOG("Error %d clearing bg text %d %d %g %g",
err, x, y, rendered_w, rendered_h);
vcos_assert(0);
} // if
} // if
} // if
// setup the foreground colour
fg = vgCreatePaint();
if (!fg)
{
status = VCOS_ENOMEM;
goto finish;
}
// draw the foreground text
vgSetParameteri(fg, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
gx_priv_colour_to_paint(fg_colour, vg_colour);
vgSetParameterfv(fg, VG_PAINT_COLOR, 4, vg_colour);
vgSetPaint(fg, VG_FILL_PATH);
vgft_font_draw(font, (VGfloat)x, (VGfloat)y, text, text_length, VG_FILL_PATH);
vgDestroyPaint(fg);
vcos_assert(vgGetError() == 0);
vgSeti(VG_SCISSORING, VG_FALSE);
finish:
gx_priv_restore(&save);
return status;
}
// C function:: VGPaint vgCreatePaint(void);
JNIEXPORT jlong JNICALL
Java_com_example_startvg_VG11_vgCreatePaint(
JNIEnv * env, jobject obj){
return (long) vgCreatePaint();
}
/*******************************************************************************
* Function Name : InitView
* Returns : true if no error occured
* Description : Code in InitView() will be called by the Shell upon a change
* in the rendering context.
* Used to initialise variables that are dependent on the rendering
* context (e.g. textures, vertex buffers, etc.)
*******************************************************************************/
bool OVGMaskLayer::InitView()
{
// Get screen dimensions
m_ui32ScreenWidth = PVRShellGet(prefWidth);
m_ui32ScreenHeight= PVRShellGet(prefHeight);
// Create the paths so we have something to look at.
CreatePath();
// Set the render quality so the stroke borders have some form of anti-aliasing
vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_BETTER);
// Create the paints that the paths will use
m_avgColourPaint[0] = vgCreatePaint();
vgSetParameteri(m_avgColourPaint[0], VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(m_avgColourPaint[0], PVRTRGBA(255,255,15,255));
m_avgColourPaint[1] = vgCreatePaint();
vgSetParameteri(m_avgColourPaint[1], VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(m_avgColourPaint[1], PVRTRGBA(255,50,0, 255));
m_avgColourPaint[2] = vgCreatePaint();
vgSetParameteri(m_avgColourPaint[2], VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
vgSetColor(m_avgColourPaint[2], PVRTRGBA(50,250,15, 255));
/*
Load the images we're going to use to modify the mask layer.
For more details on masking please refer to our OVGMasking training course
*/
// Create the VGImages.
VGImage vgMaskImg, vgMaskImg2;
// Using the PVR Tools we're going to load the mask data from a pvr file
if(PVRTImageLoadFromPVR(c_szMask1File, &vgMaskImg) != PVR_SUCCESS)
{
PVRShellSet(prefExitMessage, "Error: Failed to open mask1.pvr.");
return false;
}
if(PVRTImageLoadFromPVR(c_szMask2File, &vgMaskImg2) != PVR_SUCCESS)
{
PVRShellSet(prefExitMessage, "Error: Failed to open mask2.pvr.");
return false;
}
/*
Create a mask layer
A VGMaskLayer is an object that allows you to store and manipulate the drawing surface's mask layer
*/
m_vgMaskLayer[0] = vgCreateMaskLayer(m_ui32ScreenWidth, m_ui32ScreenHeight);
if(m_vgMaskLayer[0] == 0)
{
PVRShellSet(prefExitMessage, "Error: Failed to create mask layer.");
return false;
}
// Tile the first image in the drawing surface's masking layer
TileImageInMask(vgMaskImg, VG_SET_MASK);
/*
Copy the contents of the drawing surface mask layer into our mask layer object
vgCopyMask has the following parameters
VGMaskLayer maskLayer, VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
where
masklayer is the masklayer to copy to
dx, dy are the coordinates to start the copy at in the masklayer
sx, sy are the coordinates to start the copy from in the source mask layer
width and the height are the width and height of the region you wish to copy.
In our case we're copying the full mask layer.
*/
vgCopyMask(m_vgMaskLayer[0], 0, 0, 0, 0, m_ui32ScreenWidth, m_ui32ScreenHeight);
// Create the second mask layer
m_vgMaskLayer[1] = vgCreateMaskLayer(m_ui32ScreenWidth, m_ui32ScreenHeight);
if(m_vgMaskLayer[1] == 0)
{
PVRShellSet(prefExitMessage, "Error: Failed to create mask layer.");
return false;
}
// Replace the contents of the mask by tiling the second image
TileImageInMask(vgMaskImg2, VG_SET_MASK);
// Copy the contents of the mask into the second mask layer
vgCopyMask(m_vgMaskLayer[1], 0, 0, 0, 0, m_ui32ScreenWidth, m_ui32ScreenHeight);
// Destroy the images as they are no longer needed
vgDestroyImage(vgMaskImg);
vgDestroyImage(vgMaskImg2);
// Set the mask to ones
vgMask(VG_INVALID_HANDLE, VG_FILL_MASK, 0, 0, m_ui32ScreenWidth, m_ui32ScreenHeight);
// Init PrintVG
m_PrintVG.Initialize(m_ui32ScreenWidth, m_ui32ScreenHeight);
// Setup the transformation to scale the paths to fit the screen
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgScale((float) m_ui32ScreenWidth, (float) m_ui32ScreenHeight);
// Reduce the stroke size to compensate for our scaling
vgSetf(VG_STROKE_LINE_WIDTH, 1.0f / m_ui32ScreenHeight);
//Create and set the clear colour
VGfloat afClearColour[] = { 0.6f, 0.8f, 1.0f, 1.0f };
vgSetfv(VG_CLEAR_COLOR, 4, afClearColour);
return true;
}