void applyStrokeStyle()
{
if (strokeStyle == DottedStroke) {
VGfloat vgFloatArray[2] = { 1.0, 1.0 };
vgSetfv(VG_STROKE_DASH_PATTERN, 2, vgFloatArray);
vgSetf(VG_STROKE_DASH_PHASE, 0.0);
} else if (strokeStyle == DashedStroke) {
if (!strokeDashArray.size()) {
VGfloat vgFloatArray[2] = { 4.0, 3.0 };
vgSetfv(VG_STROKE_DASH_PATTERN, 2, vgFloatArray);
} else {
Vector<VGfloat> vgFloatArray(strokeDashArray.size());
for (int i = 0; i < strokeDashArray.size(); ++i)
vgFloatArray[i] = strokeDashArray[i];
vgSetfv(VG_STROKE_DASH_PATTERN, vgFloatArray.size(), vgFloatArray.data());
}
vgSetf(VG_STROKE_DASH_PHASE, strokeDashOffset);
} else {
vgSetfv(VG_STROKE_DASH_PATTERN, 0, 0);
vgSetf(VG_STROKE_DASH_PHASE, 0.0);
}
ASSERT_VG_NO_ERROR();
}
void InitializeOpenVGContext() {
vgSeti(VG_PIXEL_LAYOUT, vgGeti(VG_SCREEN_LAYOUT));
vgSetf(VG_STROKE_LINE_WIDTH, 4);
vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_SQUARE);
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_BEVEL);
}
//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();
}
/*******************************************************************************
* 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;
}
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);
}
void PainterOpenVG::setStrokeThickness(float thickness)
{
ASSERT(m_state);
m_surface->makeCurrent();
m_state->strokeThickness = thickness;
vgSetf(VG_STROKE_LINE_WIDTH, thickness);
ASSERT_VG_NO_ERROR();
}
void PainterOpenVG::setMiterLimit(float miterLimit)
{
ASSERT(m_state);
m_surface->makeCurrent();
m_state->strokeMiterLimit = miterLimit;
vgSetf(VG_STROKE_MITER_LIMIT, miterLimit);
ASSERT_VG_NO_ERROR();
}
// C function:: void vgSetf (VGParamType type, VGfloat value);
JNIEXPORT jint JNICALL
Java_com_example_startvg_VG11_vgSetf(
JNIEnv* env, jobject obj,
jint type, jfloat value ){
vgSetf (
(VGParamType) type,
(VGfloat) value
);
}
void applyState(PainterOpenVG* painter)
{
ASSERT(painter);
setVGSolidColor(VG_FILL_PATH, fillColor);
setVGSolidColor(VG_STROKE_PATH, strokeColor);
vgSetf(VG_STROKE_LINE_WIDTH, strokeThickness);
vgSeti(VG_STROKE_CAP_STYLE, toVGCapStyle(strokeLineCap));
vgSeti(VG_STROKE_JOIN_STYLE, toVGJoinStyle(strokeLineJoin));
vgSetf(VG_STROKE_MITER_LIMIT, strokeMiterLimit);
if (antialiasingEnabled)
vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_FASTER);
else
vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
applyBlending(painter);
applyStrokeStyle();
applyTransformationMatrix(painter);
applyScissorRect();
}
void PS_render(PS* ps)
{
int i;
assert(ps);
vgSeti(VG_BLEND_MODE, VG_BLEND_SRC_OVER);
for(i=0;i<ps->m_numPaths;i++)
{
vgSeti(VG_FILL_RULE, ps->m_paths[i].m_fillRule);
vgSetPaint(ps->m_paths[i].m_fillPaint, VG_FILL_PATH);
if(ps->m_paths[i].m_paintMode & VG_STROKE_PATH)
{
vgSetf(VG_STROKE_LINE_WIDTH, ps->m_paths[i].m_strokeWidth);
vgSeti(VG_STROKE_CAP_STYLE, ps->m_paths[i].m_capStyle);
vgSeti(VG_STROKE_JOIN_STYLE, ps->m_paths[i].m_joinStyle);
vgSetf(VG_STROKE_MITER_LIMIT, ps->m_paths[i].m_miterLimit);
vgSetPaint(ps->m_paths[i].m_strokePaint, VG_STROKE_PATH);
}
vgDrawPath(ps->m_paths[i].m_path, ps->m_paths[i].m_paintMode);
}
assert(vgGetError() == VG_NO_ERROR);
}
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);
}
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);
}
void OpenVG_SVGHandler::draw_recursive( group_t& group ) {
// push the group matrix onto the stack
pushTransform( group.transform );
vgLoadMatrix( topTransform().m );
for ( list<path_object_t>::iterator it = group.path_objects.begin(); it != group.path_objects.end(); it++ ) {
path_object_t& po = *it;
uint32_t draw_params = 0;
if ( po.fill ) {
vgSetPaint( po.fill, VG_FILL_PATH );
draw_params |= VG_FILL_PATH;
}
if ( po.stroke ) {
vgSetPaint( po.stroke, VG_STROKE_PATH );
vgSetf( VG_STROKE_LINE_WIDTH, po.stroke_width );
draw_params |= VG_STROKE_PATH;
}
if( draw_params == 0 ) { // if no stroke or fill use the default black fill
vgSetPaint( _blackBackFill, VG_FILL_PATH );
draw_params |= VG_FILL_PATH;
}
// set the fill rule
vgSeti( VG_FILL_RULE, po.fill_rule );
// trasnform
pushTransform( po.transform );
vgLoadMatrix( topTransform().m );
vgDrawPath( po.path, draw_params );
popTransform();
vgLoadMatrix( topTransform().m );
}
for ( list<group_t>::iterator it = group.children.begin(); it != group.children.end(); it++ ) {
draw_recursive( *it );
}
popTransform();
vgLoadMatrix( topTransform().m );
}
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);
}
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;
}
static void update_display(envelope_render_internal_t *renderer)
{
// Calculate scale
envelope_t *envelope = renderer->definition.envelope;
int32_t total_duration = 0;
envelope_stage_t *stage = envelope->stages;
for (int i = 0; i < envelope->stage_count; i++, stage++)
{
if (stage->duration == DURATION_HELD)
{
total_duration += HELD_DURATION_LENGTH;
}
else
{
total_duration += stage->duration;
}
}
float horizontal_scale = (float)(renderer->definition.width - 1) / (float) total_duration;
float vertical_scale = (float)(renderer->definition.height - 1) / (float)envelope->peak;
// Build path segments from envelope stages
int command_index = 0;
int coord_index = 0;
int32_t last_level = -1;
int32_t elapsed_duration = 0;
stage = envelope->stages;
for (int i = 0; i < envelope->stage_count; i++, stage++)
{
if (last_level != stage->start_level && stage->start_level != LEVEL_CURRENT)
{
commands[command_index++] = VG_MOVE_TO_ABS;
coords[coord_index++] = (float)elapsed_duration * horizontal_scale;
coords[coord_index++] = (float)stage->start_level * vertical_scale;
}
last_level = stage->end_level;
if (stage->duration == DURATION_HELD)
{
elapsed_duration += HELD_DURATION_LENGTH;
}
else
{
elapsed_duration += stage->duration;
}
commands[command_index++] = VG_LINE_TO_ABS;
coords[coord_index++] = (float)elapsed_duration * horizontal_scale;
coords[coord_index++] = (float)stage->end_level * vertical_scale;
}
vgAppendPathData(renderer->state.path, command_index, commands, coords);
// Render it out
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgSetfv(VG_CLEAR_COLOR, 4, renderer->definition.background_colour);
vgClear(renderer->definition.x, renderer->definition.y,
renderer->definition.width, renderer->definition.height);
vgSetf(VG_STROKE_LINE_WIDTH, renderer->definition.line_width);
vgSeti(VG_STROKE_CAP_STYLE, renderer->definition.line_cap_style);
vgSeti(VG_STROKE_JOIN_STYLE, renderer->definition.line_join_style);
vgSetPaint(renderer->state.line_paint, VG_STROKE_PATH);
vgSeti(VG_RENDERING_QUALITY, renderer->definition.rendering_quality);
vgTranslate(renderer->definition.x, renderer->definition.y);
vgDrawPath(renderer->state.path, VG_STROKE_PATH);
vgClearPath(renderer->state.path, VG_PATH_CAPABILITY_APPEND_TO);
vgSeti(VG_RENDERING_QUALITY, renderer->definition.text_quality);
vgSetPaint(renderer->state.text_paint, VG_FILL_PATH);
gfx_render_text(0, renderer->definition.height - 12, renderer->definition.text, &gfx_font_sans, 9);
}
// StrokeWidth sets the stroke width
void StrokeWidth(VGfloat width) {
vgSetf(VG_STROKE_LINE_WIDTH, width);
vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_BUTT);
vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_MITER);
}
/*******************************************************************************
* 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;
}
/*******************************************************************************
* Function Name : RenderScene
* Returns : true if no error occured
* Description : Main rendering loop function of the program. The shell will
* call this function every frame.
*******************************************************************************/
bool CStrokeStyles::RenderScene()
{
/*
If the left or right arrow keys are pressed then change the
CapStyle or JoinStyle or DashStyle depending on which one is
selected.
*/
if(PVRShellIsKeyPressed(PVRShellKeyNameLEFT))
{
switch(m_i32Selected)
{
case 0: m_i32CapStyle = (m_i32CapStyle + 2) % 3; break;
case 1: m_i32JoinStyle = (m_i32JoinStyle + 2) % 3; break;
case 2: m_i32DashStyle = (m_i32DashStyle + 2) % 3; break;
}
}
if(PVRShellIsKeyPressed(PVRShellKeyNameRIGHT))
{
switch(m_i32Selected)
{
case 0: m_i32CapStyle = (m_i32CapStyle + 1) % 3; break;
case 1: m_i32JoinStyle = (m_i32JoinStyle + 1) % 3; break;
case 2: m_i32DashStyle = (m_i32DashStyle + 1) % 3; break;
}
}
/*
If the up or down arrow is pressed then change which item is
selected.
*/
if(PVRShellIsKeyPressed(PVRShellKeyNameUP))
m_i32Selected = (m_i32Selected + 2) % 3;
if(PVRShellIsKeyPressed(PVRShellKeyNameDOWN))
m_i32Selected = (m_i32Selected + 1) % 3;
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadIdentity();
vgScale((float)PVRShellGet(prefWidth), (float)PVRShellGet(prefHeight));
// Clear the screen with clear colour.
vgClear(0, 0, PVRShellGet(prefWidth), PVRShellGet(prefHeight));
// Draw the path with the stroke styles that we want
vgSeti(VG_STROKE_CAP_STYLE , VG_CAP_BUTT + m_i32CapStyle);
vgSeti(VG_STROKE_JOIN_STYLE , VG_JOIN_MITER + m_i32JoinStyle);
vgSetf(VG_STROKE_MITER_LIMIT, m_fMiterLimit * PVRShellGet(prefHeight));
if(m_i32DashStyle > 0)
{
vgSetf(VG_STROKE_DASH_PHASE, m_fDashPhase);
static float s_afDashes[] = { 0.1f, 0.15f, 0.23f, 0.11f };
vgSetfv(VG_STROKE_DASH_PATTERN, 4, s_afDashes);
if(m_i32DashStyle == 2)
m_fDashPhase += 0.01f;
}
else
{
vgSetfv(VG_STROKE_DASH_PATTERN, 0, NULL);
}
vgSetf(VG_STROKE_LINE_WIDTH, 20.0f / PVRShellGet(prefHeight));
vgDrawPath(m_vgPath, VG_STROKE_PATH);
/* Draw the text.
If one of the pieces of text is currently selected then it will be
drawn in yellow.
*/
static char* apszCapStrings[] = { "Butt", "Round", "Square" };
static char* apszJoinStrings[] = { "Miter", "Round", "Bevel" };
static char* apszDashStrings[] = { "None", "Pattern", "Moving" };
m_PrintVG.DisplayDefaultTitle("StrokeStyles", "", ePVRTPrint3DLogoIMG);
float fHeight = PVRShellGet(prefHeight) - 40.0f;
/*
Draw the Cap text.
*/
m_PrintVG.DrawString(2.0f , fHeight, 0.6f, "Cap:", (int) PVRTRGBA(204,204,204,255));
m_PrintVG.DrawShadowString(65.0f, fHeight, 0.6f, apszCapStrings[m_i32CapStyle],
m_i32Selected == 0 ? (int) PVRTRGBA(255,255,0,255) : (int) PVRTRGBA(255,255,255,255));
/*
Draw the Join text.
*/
fHeight -= 20.0f;
m_PrintVG.DrawString(2.0f, fHeight, 0.6f, "Join:", (int) PVRTRGBA(204,204,204,255));
m_PrintVG.DrawShadowString(65.0f, fHeight, 0.6f, apszJoinStrings[m_i32JoinStyle],
m_i32Selected == 1 ? (int) PVRTRGBA(255,255,0,255) : (int) PVRTRGBA(255,255,255,255));
/*
Draw the Dash text.
*/
fHeight -= 20.0f;
m_PrintVG.DrawString(2.0f,fHeight, 0.6f, "Dash:", (int) PVRTRGBA(204,204,204,255));
m_PrintVG.DrawShadowString(65.0f, fHeight, 0.6f, apszDashStrings[m_i32DashStyle],
m_i32Selected == 2 ? (int) PVRTRGBA(255,255,0,255) : (int) PVRTRGBA(255,255,255,255));
return true;
}
TInt CNVGCSIcon::DoDrawL(const TSize aSize)
{
TInt ret = KErrNone;
vgSetPaint(iFillPaint, VG_FILL_PATH);
vgSetPaint(iStrokePaint, VG_STROKE_PATH);
iLastFillPaintColor = 0;
iLastStrkePaintColor = 0;
iLastFillPaintType = 0;
iLastStrokePaintType = 0;
VGfloat lCurrentPathMatrix[9];
vgGetMatrix(lCurrentPathMatrix);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
vgLoadMatrix(lCurrentPathMatrix);
SetRotation();
#ifdef __MIRROR_
vgScale(1.0f, -1.0f);
vgTranslate(0, (VGfloat)(-aSize.iHeight) );
#endif
SetViewBoxToViewTransformationL(aSize);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
VGfloat currentMatrix[9];
vgGetMatrix(currentMatrix);
iNVGIconData->BeginRead();
while (!iNVGIconData->EOF())
{
switch (iNVGIconData->ReadInt32L())
{
case EPath:
{
VGPath path = (VGPath)iNVGIconData->ReadInt32L();
VGPaintMode paintMode = (VGPaintMode)iNVGIconData->ReadInt32L();
if (path == VG_INVALID_HANDLE)
{
vgDrawPath(iPath, paintMode);
}
else
{
vgDrawPath(path, paintMode);
}
break;
}
case EPathData:
{
if (iPath != VG_INVALID_HANDLE)
{
VGint numSegments;
VGubyte * pathSegments = 0;
VGubyte * pathData = 0;
numSegments = iNVGIconData->ReadInt32L();
pathSegments = new (ELeave) VGubyte[numSegments];
CleanupStack::PushL(TCleanupItem(CleanupArray, pathSegments));
if (pathSegments)
{
iNVGIconData->ReadL(pathSegments, numSegments);
VGint coordinateCount = iNVGIconData->ReadInt32L();
pathData = new (ELeave) VGubyte[coordinateCount * 4];
if (pathData)
{
CleanupStack::PushL(TCleanupItem(CleanupArray, pathData));
iNVGIconData->ReadL(pathData, coordinateCount * 4);
vgClearPath(iPath, VG_PATH_CAPABILITY_APPEND_TO);
vgAppendPathData(iPath, numSegments, pathSegments, pathData);
CleanupStack::PopAndDestroy();
}
}
CleanupStack::PopAndDestroy();
}
break;
}
case EPaint:
{
DrawPaintL(iFillPaint, VG_MATRIX_FILL_PAINT_TO_USER, iLastFillPaintType, iLastFillPaintColor, VG_FILL_PATH);
break;
}
case EColorRamp:
{
iNVGIconData->ReadInt32L();
break;
}
case ETransform:
{
TInt flag;
VGfloat transformMatrix[9];
TPtr8 tmPtr((TUint8 *)transformMatrix, 9 * sizeof(VGfloat));
iNVGIconData->ReadL(tmPtr, 9 * sizeof(VGfloat));
flag = iNVGIconData->ReadInt32L();
vgLoadMatrix(currentMatrix);
if (flag)
{
vgMultMatrix(transformMatrix);
}
}
break;
case EStrokeWidth:
{
VGfloat strokeWidth = iNVGIconData->ReadReal32L();
vgSetf(VG_STROKE_LINE_WIDTH, strokeWidth);
break;
}
case EStrokeMiterLimit:
{
VGfloat miterLimit = iNVGIconData->ReadReal32L();
vgSetf(VG_STROKE_MITER_LIMIT, miterLimit);
break;
}
case EStrokeLineJoinCap:
{
VGint lineJoin = iNVGIconData->ReadInt32L();
VGint cap = iNVGIconData->ReadInt32L();
vgSeti(VG_STROKE_JOIN_STYLE, (VGJoinStyle)lineJoin);
vgSeti(VG_STROKE_CAP_STYLE, (VGCapStyle)cap);
break;
}
case EStrokePaint:
{
DrawPaintL(iStrokePaint, VG_MATRIX_STROKE_PAINT_TO_USER, iLastStrokePaintType, iLastStrkePaintColor, VG_STROKE_PATH);
break;
}
case EStrokeColorRamp:
{
iNVGIconData->ReadInt32L();
break;
}
default:
{
User::Leave(KErrCorrupt);
break;
}
}
}
iNVGIconData->EndRead();
return ret;
}
/*!***************************************************************************
@Function Draw
@Input i32StartPath Path to start drawing from
@Input i32EndPath Path to end drawing on
@Returns True on success
@Description Draw a set of the paths loaded from the file. If no argument
is specified this function will draw all paths.
*****************************************************************************/
bool CPVRTPVGObject::Draw(int i32StartPath, int i32EndPath)
{
if (!m_bInitialized)
{
// This set has not been initialised so return.
return false;
}
if(i32EndPath < i32StartPath)
{
i32EndPath = m_i32NumPaths;
}
i32StartPath = PVRT_MAX(0, i32StartPath);
i32EndPath = PVRT_MIN(i32EndPath, m_i32NumPaths);
for(int i = i32StartPath; i < i32EndPath; ++i)
{
// Set the blending options. PVG files only support standard translucency.
if(m_pPaths[i].m_bNeedsBlending)
{
vgSeti(VG_BLEND_MODE, VG_BLEND_SRC_OVER);
}
else
{
vgSeti(VG_BLEND_MODE, VG_BLEND_SRC);
}
// Check whether this one is a path without fill or stroke and ignore it.
if(m_pPaths[i].m_paintMode == 0)
{
continue;
}
// Fill the parameters for the current Fill Paint
// Check if the paint is present, if it is different than the previous one or if it is the first one.
if(((m_pPaths[i].m_paintMode & VG_FILL_PATH) && m_pPaths[i].m_bIsNewFill) || (i==i32StartPath))
{
vgSeti(VG_FILL_RULE, m_pPaths[i].m_fillRule);
vgSetPaint(m_pPaths[i].m_fillPaint, VG_FILL_PATH);
}
// Fill the parameters for the current Stroke Paint
if(((m_pPaths[i].m_paintMode & VG_STROKE_PATH) && m_pPaths[i].m_bIsNewStroke) || (i==i32StartPath))
{
vgSetf(VG_STROKE_LINE_WIDTH, m_pPaths[i].m_fStrokeWidth);
vgSeti(VG_STROKE_CAP_STYLE, m_pPaths[i].m_capStyle);
vgSeti(VG_STROKE_JOIN_STYLE, m_pPaths[i].m_joinStyle);
vgSetf(VG_STROKE_MITER_LIMIT,m_pPaths[i].m_fMiterLimit);
// Get current stroke 'dash' if any
if (m_pPaths[i].m_ui32DashID != 666)
{
vgSetf(VG_STROKE_DASH_PHASE, m_pPaths[i].m_fDashPhase);
vgSetfv(VG_STROKE_DASH_PATTERN, m_pPaths[i].m_ui32NumDashes, m_pPaths[i].m_fDashValues);
}
else
{
vgSetfv(VG_STROKE_DASH_PATTERN, 0, (VGfloat *) 0); // disable dashes
}
vgSetPaint(m_pPaths[i].m_strokePaint, VG_STROKE_PATH);
}
// Draw this path.
vgDrawPath(m_pPaths[i].m_path, m_pPaths[i].m_paintMode);
}
// Success!
return true;
}
