// This function is needed to work around a bug in Windows CG <rdar://problem/22703470>
void PlatformCALayer::drawTextAtPoint(CGContextRef context, CGFloat x, CGFloat y, CGSize scale, CGFloat fontSize, const char* text, size_t length) const
{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
CGContextSetTextMatrix(context, CGAffineTransformMakeScale(scale.width, scale.height));
CGContextSelectFont(context, "Helvetica", fontSize, kCGEncodingMacRoman);
CGContextShowTextAtPoint(context, x, y, text, length);
#pragma clang diagnostic pop
}
void MacDock::overlay(const QString& text)
{
if (text.isEmpty()) {
overlayed = false;
RestoreApplicationDockTileImage();
return;
}
// Create the context
CGContextRef context = BeginCGContextForApplicationDockTile();
if (!overlayed) {
overlayed = true;
// Add some subtle drop down shadow
// FIXME: Disabled because 10.2 doesn't support it
//CGSize s = { 2.0, -4.0 };
//CGContextSetShadow(context,s,5.0);
}
// Draw a circle
CGContextBeginPath(context);
CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
CGContextClosePath(context);
CGContextSetRGBFillColor(context, 1, 0.0, 0.0, 1);
CGContextFillPath(context);
// Set the clipping path to the same circle
CGContextBeginPath(context);
CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
CGContextClip(context);
// Remove drop shadow
// FIXME: Disabled because 10.2 doesn't support it
//CGSize s = { 0.0, -0.0 };
//CGContextSetShadowWithColor(context, s, 0, NULL);
// Select the appropriate font
CGContextSelectFont(context,DOCK_FONT_NAME, DOCK_FONT_SIZE, kCGEncodingMacRoman);
CGContextSetRGBFillColor(context, 1, 1, 1, 1);
// Draw the text invisible
CGPoint begin = CGContextGetTextPosition(context);
CGContextSetTextDrawingMode(context, kCGTextInvisible);
CGContextShowTextAtPoint(context, begin.x, begin.y, text.toStdString().c_str(), text.length());
CGPoint end = CGContextGetTextPosition(context);
// Draw the text
CGContextSetTextDrawingMode(context, kCGTextFill);
CGContextShowTextAtPoint(context, 95 - (end.x - begin.x)/2, 95 - 8, text.toStdString().c_str(), text.length());
// Cleanup
CGContextFlush(context);
EndCGContextForApplicationDockTile(context);
}
void drawMetaDataText (CGContextRef myContext, CGRect contextRect, CFURLRef url)
{
float w, h;
w = contextRect.size.width;
h = contextRect.size.height;
//Lets pull some metadata!
struct metaData struct_metaData;
bzero(struct_metaData.Title, 1024);
bzero(struct_metaData.Header, 1024);
// bzero(struct_metaData.Expdata, 1024);
// bzero(struct_metaData.Resolution, 1024);
// bzero(struct_metaData.JrnlTitle, 1024);
// bzero(struct_metaData.JrnlRef, 1024);
// bzero(struct_metaData.Keywds, 4000);
// bzero(struct_metaData.JrnlAuthor, 4000);
exportMetaData(url, &struct_metaData);
int wraplength = 50;
int colLength = wraplength+5;
int rowLength = 10;
int textposX = 5;
int textposY = 10;
int calc_textposX = textposX;
int calc_textposY = textposY;
CGContextSetRGBFillColor (myContext, 1, 1, 1, 1);
CGContextSelectFont (myContext, "Helvetica", 20, kCGEncodingMacRoman);
CGContextSetCharacterSpacing (myContext, 1);
CGContextSetTextDrawingMode (myContext, kCGTextFill);
CGContextSetRGBFillColor(myContext, 0, 0, 0, 1);
if(struct_metaData.Title[0] != 0){
calcRectangle("Title: ", struct_metaData.Title, rowLength, colLength, wraplength, &calc_textposX, &calc_textposY);
drawRoundedRect(myContext, calc_textposX, calc_textposY);
}
DrawText("Title: ", struct_metaData.Title, myContext, rowLength, colLength, wraplength, &textposX, &textposY);
}
void x_async_refresh(CGContextRef myContext,CGRect myBoundingBox)
{
#ifdef ENABLEQD
CEmulatorMac* pEmu = (CEmulatorMac*)CEmulator::theEmulator;
if (!pEmu) return ;
#endif
#ifndef DRIVER_IOS
x_vbl_count++;
#endif
addFrameRate(0);
CHANGE_BORDER(1,0xFF);
// OG
if (macUsingCoreGraphics)
{
if(r_sim65816.is_emulator_offscreen_available() && g_kimage_offscreen.dev_handle)
{
/*
void addConsoleWindow(Kimage* _dst);
addConsoleWindow(&g_kimage_offscreen);
*/
CGContextSaveGState(myContext);
#ifndef DRIVER_IOS
// CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
CGContextTranslateCTM(myContext,0.0, myBoundingBox.size.height);
CGContextScaleCTM(myContext,1.0,-1.0);
#endif
CGImageRef myImage = CGBitmapContextCreateImage((CGContextRef)g_kimage_offscreen.dev_handle);
CGContextDrawImage(myContext, myBoundingBox, myImage);// 6
#ifndef VIDEO_SINGLEVLINE
if (r_sim65816.get_video_fx() == VIDEOFX_CRT)
{
CGContextSetRGBFillColor(myContext,0,0,0,0.5);
for(int h=0;h<g_kimage_offscreen.height;h+=2)
{
CGRect r = CGRectMake(0,h,g_kimage_offscreen.width_act,1);
CGContextFillRect(myContext,r);
}
}
#endif
CGImageRelease(myImage);
CGContextRestoreGState(myContext);
#ifndef DRIVER_IOS
if (!messageLine.IsEmpty())
{
CGContextSaveGState(myContext);
CGContextSetTextMatrix(myContext,CGAffineTransformIdentity);
CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
CGContextScaleCTM(myContext,1.0,-1.0);
CGContextSelectFont(myContext, "Courier", 14.0, kCGEncodingMacRoman);
CGContextSetTextDrawingMode(myContext, kCGTextFill);
CGContextSetRGBFillColor (myContext, 1,1, 1, 1);
CGContextSetShouldAntialias(myContext, true);
#define SHADOW 4.0
CGFloat myColorValues[] = {0.5, 0.5, 0.5, 1.0};
CGColorSpaceRef myColorSpace = CGColorSpaceCreateDeviceRGB ();// 9
CGColorRef myColor = CGColorCreate (myColorSpace, myColorValues);
CGContextSetShadowWithColor(myContext, CGSizeMake(SHADOW, -SHADOW), 4,
myColor
//CGColorCreateGenericGray(0.5,1.0)
);
CGContextShowTextAtPoint(myContext, 20.0, X_A2_WINDOW_HEIGHT-20.0, messageLine.c_str(), messageLine.GetLength());
CGContextRestoreGState(myContext);
messageLineVBL--;
if (messageLineVBL<0)
messageLine.Empty();
else
x_refresh_video();
}
#endif
}
else
{
CGContextSaveGState(myContext);
#if defined(DRIVER_IOS)
// efface en noir si l'émulateur n'avait pas encore démarré (le cas sur 3GS)
CGContextSetRGBFillColor (myContext, 0, 0, 0, 1);
#else
CGContextSetRGBFillColor (myContext, 0, 0, 1, 1);
#endif
CGContextFillRect (myContext, CGRectMake (0, 0, X_A2_WINDOW_WIDTH, X_A2_WINDOW_HEIGHT));
CGContextRestoreGState(myContext);
}
}
else
{
#ifdef ENABLEQD
CGrafPtr window_port = pEmu->window_port;
Rect src_rect;
Rect dest_rect;
SetRect(&src_rect,0,0,704,462);
SetRect(&dest_rect,0,0,704,462);
if (pixmap_backbuffer)
CopyBits( (BitMap *)(*pixmap_backbuffer),
GetPortBitMapForCopyBits(window_port), &src_rect, &dest_rect,
srcCopy, NULL);
#endif
}
CHANGE_BORDER(1,0);
if (r_sim65816.is_emulator_offscreen_available() && g_driver.x_handle_state_on_paint)
g_driver.x_handle_state_on_paint(myBoundingBox.size.width,myBoundingBox.size.height);
}
static void drawMarks(CGContextRef gc, int width, int height, int max)
{
float angle, c, s, tick, radius, needle;
float r0, r1, r2, r3, cx, cy;
int i, start, end, redline, section;
cx = CENTERX * width;
cy = CENTERY * height;
redline = TICKS * SUBTICKS * 0.8;
radius = 0.5 * (width > height ? width : height);
needle = radius * 0.85;
for (section = 0; section < 2; section++)
{
start = section ? redline + 1 : 0;
end = section ? TICKS * SUBTICKS : redline;
if (section)
CGContextSetRGBStrokeColor(gc, 1.0, 0.1, 0.1, 1.0);
else
CGContextSetRGBStrokeColor(gc, 0.9, 0.9, 1.0, 1.0);
// inner tick ring
r0 = 0.97 * needle;
r1 = 1.04 * needle;
r2 = 1.00 * needle;
r3 = 1.01 * needle;
for (i = start; i <= end ; i++)
{
tick = i / (float)(SUBTICKS * TICKS);
angle = (2.0 / 3.0) * (2 * M_PI) * tick - M_PI / 6;
c = cos(angle);
s = sin(angle);
if (i % SUBTICKS != 0)
{
CGContextMoveToPoint(gc, cx - r0*c, cy + r0*s);
CGContextAddLineToPoint(gc, cx - r1*c, cy + r1*s);
}
else
{
CGContextMoveToPoint(gc, cx - r2*c, cy + r2*s);
CGContextAddLineToPoint(gc, cx - r3*c, cy + r3*s);
}
}
CGContextSetLineWidth(gc, 2.0);
CGContextStrokePath(gc);
// outer tick ring
start = ((float)start / SUBTICKS) + section;
end = ((float)end / SUBTICKS);
r0 = 1.05 * needle;
r1 = 1.14 * needle;
for (i = start; i <= end ; i++)
{
tick = i / (float)(TICKS);
angle = (2.0 / 3.0) * (2 * M_PI) * tick - M_PI / 6;
c = cos(angle);
s = sin(angle);
CGContextMoveToPoint(gc, cx - r0*c, cy + r0*s);
CGContextAddLineToPoint(gc, cx - r1*c, cy + r1*s);
}
CGContextSetLineWidth(gc, 3.0);
CGContextStrokePath(gc);
}
CGContextSelectFont(gc, "Arial Bold Italic", 20.0, kCGEncodingMacRoman);
r0 = 0.82 * needle;
for (i = 0 ; i <= max ; i += (max / TICKS))
{
char text[20];
float dx, dy;
sprintf(text, "%d", i);
// hardcoded text centering for this font size
{
if (i > 199)
dx = -18;
else if (i > 99)
dx = -17;
else if (i > 0)
dx = -14;
else
dx = -12;
dy = -6.0;
}
angle = (2.0 / 3.0) * (2 * M_PI) * i / max - M_PI / 6;
c = cos(angle);
s = sin(angle);
CGContextShowTextAtPoint(gc, cx - r0*c + dx, cy + r0*s + dy,
text, strlen(text));
}
}
void CGContextSelectFont_wrap(CGContext* c, const char* s, float siz) {
return CGContextSelectFont(c, s, siz, kCGEncodingMacRoman);
}
void map_text(MapGC *mgc, MapSettings *settings,
int x, int y, const char *text, int style)
{
if (FALSE);
#ifdef HAVE_CAIRO
else if (mgc->cairo_cr)
{
int xpos = x;
int ypos = y;
cairo_text_extents_t extents;
cairo_select_font_face(mgc->cairo_cr, "Sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
if (style & 0x800)
{
if (settings->pdamode)
cairo_set_font_size(mgc->cairo_cr, 9);
else
cairo_set_font_size(mgc->cairo_cr, 14);
}
else
{
if (settings->pdamode)
cairo_set_font_size(mgc->cairo_cr, 8);
else
cairo_set_font_size(mgc->cairo_cr, 11);
}
cairo_text_extents(mgc->cairo_cr, text, &extents);
if ((style & 0x300) == 0x100)
{
xpos -= extents.width;
}
else if ((style & 0x300) == 0x200)
{
xpos -= extents.width / 2;
}
else if ((style & 0x300) == 0x300)
{
xpos -= extents.width / 2;
ypos -= extents.height / 2;
}
if (style & 0x400)
map_bkg_rectangle(mgc, settings,
xpos, ypos, extents.width, extents.height);
if (style & 1)
cairo_set_source_rgb(mgc->cairo_cr, 0, 0, 1);
else
cairo_set_source_rgb(mgc->cairo_cr, 0, 0, 0);
cairo_move_to(mgc->cairo_cr, xpos, ypos + extents.height);
cairo_show_text(mgc->cairo_cr, text);
}
#endif
#ifdef HAVE_GTK
else if (mgc->gtk_drawable)
{
int xpos = x;
int ypos = y;
int width;
int height;
PangoFontDescription *fd;
PangoLayout *layout =
gtk_widget_create_pango_layout(mgc->gtk_widget, text);
if (style & 0x800)
{
if (settings->pdamode)
fd = pango_font_description_from_string("Sans 9");
else
fd = pango_font_description_from_string("Sans 14");
}
else
{
if (settings->pdamode)
fd = pango_font_description_from_string("Sans 8");
else
fd = pango_font_description_from_string("Sans 11");
}
pango_layout_set_font_description(layout, fd);
pango_layout_get_pixel_size(layout, &width, &height);
if ((style & 0x300) == 0x100)
{
xpos -= width;
}
else if ((style & 0x300) == 0x200)
{
xpos -= width / 2;
}
else if ((style & 0x300) == 0x300)
{
xpos -= width / 2;
ypos -= height / 2;
}
if (style & 0x400)
map_bkg_rectangle(mgc, settings,
xpos, ypos, width, height);
if (style & 1)
gdk_draw_layout_with_colors(mgc->gtk_drawable, mgc->gtk_gc, xpos, ypos,
layout, &settings->blue, NULL);
else
gdk_draw_layout_with_colors(mgc->gtk_drawable, mgc->gtk_gc, xpos, ypos,
layout, &settings->black, NULL);
if (layout != NULL)
g_object_unref(G_OBJECT(layout));
pango_font_description_free(fd);
}
#endif
#ifdef HAVE_QT
else if (mgc->qt_painter)
{
qt_text(mgc->qt_painter, settings,
x, y, text, style);
}
#endif
#ifdef HAVE_QUARTZ
else if (mgc->quartz_gc)
{
int xpos = x;
int ypos = y;
int width;
int height;
CGContextSelectFont(mgc->quartz_gc, "Verdana",
8, kCGEncodingMacRoman);
if (style & 0x800)
{
if (settings->pdamode)
CGContextSetFontSize(mgc->quartz_gc, 9);
else
CGContextSetFontSize(mgc->quartz_gc, 14);
}
else
{
if (settings->pdamode)
CGContextSetFontSize(mgc->quartz_gc, 8);
else
CGContextSetFontSize(mgc->quartz_gc, 11);
}
{
CGPoint oldPos = CGContextGetTextPosition(mgc->quartz_gc);
CGContextSetTextDrawingMode(mgc->quartz_gc, kCGTextInvisible);
CGContextShowText(mgc->quartz_gc, text, strlen(text));
CGPoint newPos = CGContextGetTextPosition(mgc->quartz_gc);
CGContextSetTextDrawingMode(mgc->quartz_gc, kCGTextFill);
CGContextSetTextPosition(mgc->quartz_gc, oldPos.x, oldPos.y);
width = newPos.x - oldPos.x;
}
if ((style & 0x300) == 0x100)
{
xpos -= width;
}
else if ((style & 0x300) == 0x200)
{
xpos -= width / 2;
}
else if ((style & 0x300) == 0x300)
{
xpos -= width / 2;
ypos -= height / 2;
}
if (style & 0x400)
map_bkg_rectangle(mgc, settings,
xpos, ypos, width, height);
if (style & 1)
CGContextSetRGBStrokeColor(mgc->quartz_gc, 0, 0, 1, 1);
else
CGContextSetRGBStrokeColor(mgc->quartz_gc, 0, 0, 0, 1);
CGContextSetTextPosition(mgc->quartz_gc, xpos, ypos);
CGContextShowText(mgc->quartz_gc, text, strlen(text));
}
#endif
#ifdef WIN32
else if (mgc->win_dc)
{
int xpos = x;
int ypos = y;
int fontSize;
HFONT oldFont;
HFONT font;
SIZE textSize;
if (style & 0x800)
{
if (settings->pdamode)
fontSize = 9;
else
fontSize = 14;
}
else
{
if (settings->pdamode)
fontSize = 8;
else
fontSize = 11;
}
fontSize = fontSize * 3 / 2;
font = CreateFont(fontSize, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "MSSansSerif");
oldFont = SelectObject(mgc->win_dc, font);
GetTextExtentPoint32(mgc->win_dc, text, strlen(text), &textSize);
if ((style & 0x300) == 0x100)
{
xpos -= textSize.cx;
}
else if ((style & 0x300) == 0x200)
{
xpos -= textSize.cx / 2;
}
else if ((style & 0x300) == 0x300)
{
xpos -= textSize.cx / 2;
ypos -= textSize.cy / 2;
}
if (style & 0x400)
map_bkg_rectangle(mgc, settings,
xpos, ypos, textSize.cx, textSize.cy);
if (style & 1)
SetTextColor(mgc->win_dc, RGB(0x00, 0x00, 0xff));
else
SetTextColor(mgc->win_dc, RGB(0x00, 0x00, 0x00));
SetBkMode(mgc->win_dc, TRANSPARENT);
TextOut(mgc->win_dc, xpos, ypos, text, strlen(text));
SelectObject(mgc->win_dc, oldFont);
DeleteObject(font);
}
#endif
}
PsychError SCREENTestTexture(void)
{
#if PSYCH_SYSTEM == PSYCH_OSX
PsychWindowRecordType *winRec;
CGContextRef cgContext;
unsigned int memoryTotalSizeBytes, memoryRowSizeBytes;
UInt32 *textureMemory;
int stringLength, totalTexels, i;
GLuint myTexture;
CGColorSpaceRef cgColorSpace;
//all subfunctions should have these two lines.
PsychPushHelp(useString, synopsisString, seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
//Get the window structure for the onscreen window. It holds the onscreein GL context which we will need in the
//final step when we copy the texture from system RAM onto the screen.
PsychErrorExit(PsychCapNumInputArgs(1));
PsychErrorExit(PsychRequireNumInputArgs(1));
PsychErrorExit(PsychCapNumOutputArgs(1));
PsychAllocInWindowRecordArg(1, TRUE, &winRec);
if(!PsychIsOnscreenWindow(winRec))
PsychErrorExitMsg(PsychError_user, "Onscreen window pointer required");
//allocate memory for the surface
memoryRowSizeBytes=sizeof(UInt32) * textureSizeX;
memoryTotalSizeBytes= memoryRowSizeBytes * textureSizeY;
textureMemory=(UInt32 *)malloc(memoryTotalSizeBytes);
if(!textureMemory)
PsychErrorExitMsg(PsychError_internal, "Failed to allocate surface memory\n");
if(useQuartz){
//Create the Core Graphics bitmap graphics context. We have to be careful to specify arguments which will allow us to store the texture as an OpenGL texture.
//The choice of color space needs to be checked.
cgColorSpace=CGColorSpaceCreateDeviceRGB();
cgContext= CGBitmapContextCreate(textureMemory, textureSizeX, textureSizeY, cg_RGBA_32_BitsPerComponent, memoryRowSizeBytes, cgColorSpace, cg_RGBA_32_AlphaOption);
if(!cgContext){
free((void *)textureMemory);
PsychErrorExitMsg(PsychError_internal, "Failed to allocate CG Bimap Context\n");
}
// Draw some text into the bitmap context. We need to set font, size, pen (drawing mode), color, alpha, text position.
// There are two ways to select the font in a Core Graphics Quartz context depending on the type of font.
// 1) CGContextSetFont() for Apple Type Services (ATS) font aka "The Right Way"
// A) call CGFontCreateWithPlatformFont() which returns a CGFontRef
// B) call CGContextSetFont() to set the font to be the drawing font within a context.
// 2) CGContextSelectFont() for MacRoman aka "How We Do It"
//
// Using MacRoman seems to mean that we just change the coding, though CGContextSelectFont(). For info on using ATS fonts see:
// http://developer.apple.com/documentation/Carbon/Reference/ATS/
CGContextSelectFont(cgContext, "Helvetica", (float)24, kCGEncodingMacRoman); //set the font and its size.
CGContextSetTextDrawingMode(cgContext, kCGTextFill); //set the pen to be a filled pen
CGContextSetRGBStrokeColor(cgContext, (float)0.5, (float)0.5, (float)0.0, (float)1.0); //set the stroke color and alpha
CGContextSetRGBFillColor(cgContext, (float)0.5, (float)0.5, (float)0.0, (float)1.0); //set the fill color and alpha
stringLength=strlen(textString);
CGContextShowTextAtPoint(cgContext, (float)textPositionX, (float)textPositionY, textString, stringLength); //draw at specified location.
CGContextFlush(cgContext); //this might not be necessary but do it just in case.
}else{
//fill the texture memory by poking bits in the array which will be turned into a texture.
totalTexels=textureSizeX * textureSizeY;
for(i=0;i<totalTexels;i++)
textureMemory[i]= redFill << 24 | greenFill | 16 << blueFill << 8 | alphaFill;
}
//Convert the CG graphics bitmap (Quartz surface) into a CG texture. GL thinks we are loading the texture from memory we indicate to glTexImage2D, but really
//we are just setting the texture to share the same memory as the Quartz surface.
PsychSetGLContext(winRec);
glEnable(GL_TEXTURE_RECTANGLE_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glGenTextures(1, &myTexture); //create an index "name" for our texture
glBindTexture(GL_TEXTURE_RECTANGLE_EXT, myTexture); //instantiate a texture of type associated with the index and set it to be the target for subsequent gl texture operators.
glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, 1); //tell gl how to unpack from our memory when creating a surface, namely don't really unpack it but use it for texture storage.
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MIN_FILTER, GL_NEAREST); //specify interpolation scaling rule for copying from texture.
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MAG_FILTER, GL_NEAREST); //specify interpolation scaling rule from copying from texture.
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_RECTANGLE_EXT, 0, GL_RGBA, textureSizeX, textureSizeY, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, textureMemory);
//Copy the texture to the display. What are the s and t indices of the first pixel of the texture ? 0 or 1 ?
//set the GL context to be the onscreen window
glBegin(GL_QUADS);
glTexCoord2d(0.0, 0.0); glVertex2d(0.0, 0.0);
glTexCoord2d(textureSizeX, 0.0 ); glVertex2d(textureSizeX, 0.0);
glTexCoord2d(textureSizeX, textureSizeY); glVertex2d(textureSizeX, textureSizeY);
glTexCoord2d(0.0, textureSizeY); glVertex2d(0.0, textureSizeY);
glEnd();
glFlush();
glDisable(GL_TEXTURE_RECTANGLE_EXT);
//Close up shop. Unlike with normal textures is important to release the context before deallocating the memory which glTexImage2D() was given.
//First release the GL context, then the CG context, then free the memory.
glDeleteTextures(1, &myTexture); //Remove references from gl to the texture memory & free gl's associated resources
if(useQuartz) CGContextRelease(cgContext); //Remove references from Core Graphics to the texture memory & free Core Graphics' associated resources.
free((void *)textureMemory); //Free the memory
#endif
return(PsychError_none);
}
