/**
* Zeichnet einen Vertex (glVertex) mit Texturkoordinaten und gegebenfalls Farbinformationen aber ohne Normale.
*/
void SGLVektor::DrawVertex()
{
/*
Setzt wenn gegeben Texturkoordinaten für alle Texturrenderer vom der aktiven bis zu GL_TEXTURE0_ARB herunter.
(Aber immer nur die Selben)
*/
std::stringstream buff;
bool texOK=false;
#ifndef WIN32
if(SGLTextur::TexLoaded)
{
short coord=texKoord.size();
if(coord<SGLTextur::TexLoaded)
{
buff << *this;
SGLprintWarning("Die geladene Textur hat %d Dimensionen, die Texturkoordinaten des Vertex \"%s\" sind aber nur %d-Dimensional",SGLTextur::TexLoaded,buff.str().c_str(),coord);
}
int i=GL_TEXTURE0_ARB+SGLTextur::multitex_layer ;//@todo dirty Hack
switch(SGLTextur::TexLoaded > coord ? coord:SGLTextur::TexLoaded )
{
case 1:
for(;i>=GL_TEXTURE0_ARB;i--)
glMultiTexCoord1f(i,texKoord[0]);
break;
case 2:
for(;i>=GL_TEXTURE0_ARB;i--)
glMultiTexCoord2f(i,texKoord[0], texKoord[1]);
break;
case 3:
for(;i>=GL_TEXTURE0_ARB;i--)
glMultiTexCoord3f(i,texKoord[0], texKoord[1],texKoord[2]);
break;
default:{
buff << *this;
SGLprintError("Texturtyp (%d) passt nicht zu den verfügbaren Texturkoordinaten beim Zeichnen des Vertex \"%s\"",SGLTextur::TexLoaded, coord,buff.str().c_str());}break;
}
texOK=true;//@todo naja nich immer
}
#else
// "Texture loading is currently not supportet for Windows"
#endif
if(!SGLMaterial::MatLoaded && !texOK)
{
if(SGLV_R>=0 || SGLV_G>=0 || SGLV_B>=0)glColor3dv(Color);
else{
buff << *this;
SGLprintWarning("Keine Farbinformationen verfgbar beim Zeichnen des Vertex \"%s\"",buff.str().c_str());
}
}
DrawPureVertex();
}
void GlSplatRenderer::drawpoints()
{
glColor4dv(mColor);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, VertexVBOID);
glMultiTexCoord1f(GL_TEXTURE2, mRadius);
glNormalPointer(GL_FLOAT, sizeof(GLVertex), (void*)offsetof(GLVertex, nx));
glVertexPointer(3, GL_FLOAT, sizeof(GLVertex), (void*)offsetof(GLVertex, x));
glDrawArrays(GL_POINTS, 0, VertexCount);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_GL13_nglMultiTexCoord1f(JNIEnv *env, jclass clazz, jint target, jfloat s, jlong function_pointer) {
glMultiTexCoord1fPROC glMultiTexCoord1f = (glMultiTexCoord1fPROC)((intptr_t)function_pointer);
glMultiTexCoord1f(target, s);
}
int shDrawRadialGradientMesh(SHPaint *p, SHVector2 *min, SHVector2 *max,
VGPaintMode mode, GLenum texUnit)
{
SHint i, j;
float a, n;
SHfloat cx = p->radialGradient[0];
SHfloat cy = p->radialGradient[1];
SHfloat fx = p->radialGradient[2];
SHfloat fy = p->radialGradient[3];
float r = p->radialGradient[4];
float fcx, fcy, rr, C;
SHVector2 ux;
SHVector2 uy;
SHVector2 c, f;
SHVector2 cf;
SHMatrix3x3 *m;
SHMatrix3x3 mi;
SHint invertible;
SHVector2 corners[4];
SHVector2 fcorners[4];
SHfloat minOffset=0.0f;
SHfloat maxOffset=0.0f;
SHint maxI=0, maxJ=0;
SHfloat maxA=0.0f;
SHfloat startA=0.0f;
int numsteps = 100;
float step = 2*PI/numsteps;
SHVector2 tmin, tmax;
SHVector2 min1, max1, min2, max2;
/* Pick paint transform matrix */
SH_GETCONTEXT(0);
if (mode == VG_FILL_PATH)
m = &context->fillTransform;
else if (mode == VG_STROKE_PATH)
m = &context->strokeTransform;
/* Move focus into circle if outside */
SET2(cf, fx,fy);
SUB2(cf, cx,cy);
n = NORM2(cf);
if (n > r) {
DIV2(cf, n);
fx = cx + 0.995f * r * cf.x;
fy = cy + 0.995f * r * cf.y;
}
/* Precalculations */
rr = r*r;
fcx = fx - cx;
fcy = fy - cy;
C = fcx*fcx + fcy*fcy - rr;
/* Apply paint-to-user transformation
to focus and unit vectors */
SET2(f, fx, fy);
SET2(c, cx, cy);
SET2(ux, 1, 0);
SET2(uy, 0, 1);
ADD2(ux, cx, cy);
ADD2(uy, cx, cy);
TRANSFORM2(f, (*m));
TRANSFORM2(c, (*m));
TRANSFORM2(ux, (*m));
TRANSFORM2(uy, (*m));
SUB2V(ux, c); SUB2V(uy, c);
/* Boundbox corners */
SET2(corners[0], min->x, min->y);
SET2(corners[1], max->x, min->y);
SET2(corners[2], max->x, max->y);
SET2(corners[3], min->x, max->y);
/* Find inverse transformation (back to paint space) */
invertible = shInvertMatrix(m, &mi);
if (!invertible || r <= 0.0f) {
/* Fill boundbox with color at offset 1 */
SHColor *c = &p->stops.items[p->stops.size-1].color;
glColor4fv((GLfloat*)c); glBegin(GL_QUADS);
for (i=0; i<4; ++i) glVertex2fv((GLfloat*)&corners[i]);
glEnd();
return 1;
}
/*--------------------------------------------------------*/
/* Find min/max offset */
for (i=0; i<4; ++i) {
/* Transform to paint space */
SHfloat ax,ay, A,B,D,t, off;
TRANSFORM2TO(corners[i], mi, fcorners[i]);
SUB2(fcorners[i], fx, fy);
n = NORM2(fcorners[i]);
if (n == 0.0f) {
/* Avoid zero-length vectors */
off = 0.0f;
}else{
/* Distance from focus to circle at corner angle */
DIV2(fcorners[i], n);
ax = fcorners[i].x;
ay = fcorners[i].y;
A = ax*ax + ay*ay;
B = 2 * (fcx*ax + fcy*ay);
D = B*B - 4*A*C;
t = (-B + SH_SQRT(D)) / (2*A);
/* Relative offset of boundbox corner */
if (D <= 0.0f) off = 1.0f;
else off = n / t;
}
/* Find smallest and largest offset */
if (off < minOffset || i==0) minOffset = off;
if (off > maxOffset || i==0) maxOffset = off;
}
/* Is transformed focus inside original boundbox? */
if (f.x >= min->x && f.x <= max->x &&
f.y >= min->y && f.y <= max->y) {
/* Draw whole circle */
minOffset = 0.0f;
startA = 0.0f;
maxA = 2*PI;
}else{
/* Find most distant corner pair */
for (i=0; i<3; ++i) {
if (ISZERO2(fcorners[i])) continue;
for (j=i+1; j<4; ++j) {
if (ISZERO2(fcorners[j])) continue;
a = ANGLE2N(fcorners[i], fcorners[j]);
if (a > maxA || maxA == 0.0f)
{maxA=a; maxI=i; maxJ=j;}
}}
/* Pick starting angle */
if (CROSS2(fcorners[maxI],fcorners[maxJ]) > 0.0f)
startA = shVectorOrientation(&fcorners[maxI]);
else startA = shVectorOrientation(&fcorners[maxJ]);
}
/*---------------------------------------------------------*/
/* TODO: for minOffset we'd actually need to find minimum
of the gradient function when X and Y are substitued
with a line equation for each bound-box edge. As a
workaround we use 0.0f for now. */
minOffset = 0.0f;
step = PI/50;
numsteps = (SHint)SH_CEIL(maxA / step) + 1;
glActiveTexture(texUnit);
shSetGradientTexGLState(p);
glEnable(GL_TEXTURE_1D);
glBegin(GL_QUADS);
/* Walk the steps and draw gradient mesh */
for (i=0, a=startA; i<numsteps; ++i, a+=step) {
/* Distance from focus to circle border
at current angle (gradient space) */
float ax = SH_COS(a);
float ay = SH_SIN(a);
float A = ax*ax + ay*ay;
float B = 2 * (fcx*ax + fcy*ay);
float D = B*B - 4*A*C;
float t = (-B + SH_SQRT(D)) / (2*A);
if (D <= 0.0f) t = 0.0f;
/* Vectors pointing towards minimum and maximum
offset at current angle (gradient space) */
tmin.x = ax * t * minOffset;
tmin.y = ay * t * minOffset;
tmax.x = ax * t * maxOffset;
tmax.y = ay * t * maxOffset;
/* Transform back to user space */
min2.x = f.x + tmin.x * ux.x + tmin.y * uy.x;
min2.y = f.y + tmin.x * ux.y + tmin.y * uy.y;
max2.x = f.x + tmax.x * ux.x + tmax.y * uy.x;
max2.y = f.y + tmax.x * ux.y + tmax.y * uy.y;
/* Draw quad */
if (i!=0) {
glMultiTexCoord1f(texUnit, minOffset);
glVertex2fv((GLfloat*)&min1);
glVertex2fv((GLfloat*)&min2);
glMultiTexCoord1f(texUnit, maxOffset);
glVertex2fv((GLfloat*)&max2);
glVertex2fv((GLfloat*)&max1);
}
/* Save prev points */
min1 = min2;
max1 = max2;
}
glEnd();
glDisable(GL_TEXTURE_1D);
return 1;
}
int shDrawLinearGradientMesh(SHPaint *p, SHVector2 *min, SHVector2 *max,
VGPaintMode mode, GLenum texUnit)
{
SHint i;
SHfloat n;
SHfloat x1 = p->linearGradient[0];
SHfloat y1 = p->linearGradient[1];
SHfloat x2 = p->linearGradient[2];
SHfloat y2 = p->linearGradient[3];
SHVector2 c, ux, uy;
SHVector2 cc, uux, uuy;
SHMatrix3x3 *m;
SHMatrix3x3 mi;
SHint invertible;
SHVector2 corners[4];
SHfloat minOffset = 0.0f;
SHfloat maxOffset = 0.0f;
SHfloat left = 0.0f;
SHfloat right = 0.0f;
SHVector2 l1,r1,l2,r2;
/* Pick paint transform matrix */
SH_GETCONTEXT(0);
if (mode == VG_FILL_PATH)
m = &context->fillTransform;
else if (mode == VG_STROKE_PATH)
m = &context->strokeTransform;
/* Gradient center and unit vectors */
SET2(c, x1, y1);
SET2(ux, x2-x1, y2-y1);
SET2(uy, -ux.y, ux.x);
n = NORM2(ux);
DIV2(ux, n);
NORMALIZE2(uy);
/* Apply paint-to-user transformation */
ADD2V(ux, c); ADD2V(uy, c);
TRANSFORM2TO(c, (*m), cc);
TRANSFORM2TO(ux, (*m), uux);
TRANSFORM2TO(uy, (*m), uuy);
SUB2V(ux,c); SUB2V(uy,c);
SUB2V(uux,cc); SUB2V(uuy,cc);
/* Boundbox corners */
SET2(corners[0], min->x, min->y);
SET2(corners[1], max->x, min->y);
SET2(corners[2], max->x, max->y);
SET2(corners[3], min->x, max->y);
/* Find inverse transformation (back to paint space) */
invertible = shInvertMatrix(m, &mi);
if (!invertible || n==0.0f) {
/* Fill boundbox with color at offset 1 */
SHColor *c = &p->stops.items[p->stops.size-1].color;
glColor4fv((GLfloat*)c); glBegin(GL_QUADS);
for (i=0; i<4; ++i) glVertex2fv((GLfloat*)&corners[i]);
glEnd();
return 1;
}
/*--------------------------------------------------------*/
for (i=0; i<4; ++i) {
/* Find min/max offset and perpendicular span */
SHfloat o, s;
TRANSFORM2(corners[i], mi);
SUB2V(corners[i], c);
o = DOT2(corners[i], ux) / n;
s = DOT2(corners[i], uy);
if (o < minOffset || i==0) minOffset = o;
if (o > maxOffset || i==0) maxOffset = o;
if (s < left || i==0) left = s;
if (s > right || i==0) right = s;
}
/*---------------------------------------------------------*/
/* Corners of boundbox in gradient system */
SET2V(l1, cc); SET2V(r1, cc);
SET2V(l2, cc); SET2V(r2, cc);
OFFSET2V(l1, uuy, left); OFFSET2V(l1, uux, minOffset * n);
OFFSET2V(r1, uuy, right); OFFSET2V(r1, uux, minOffset * n);
OFFSET2V(l2, uuy, left); OFFSET2V(l2, uux, maxOffset * n);
OFFSET2V(r2, uuy, right); OFFSET2V(r2, uux, maxOffset * n);
/* Draw quad using color-ramp texture */
glActiveTexture(texUnit);
shSetGradientTexGLState(p);
glEnable(GL_TEXTURE_1D);
glBegin(GL_QUAD_STRIP);
glMultiTexCoord1f(texUnit, minOffset);
glVertex2fv((GLfloat*)&r1);
glVertex2fv((GLfloat*)&l1);
glMultiTexCoord1f(texUnit, maxOffset);
glVertex2fv((GLfloat*)&r2);
glVertex2fv((GLfloat*)&l2);
glEnd();
glDisable(GL_TEXTURE_1D);
return 1;
}
PsychError SCREENDrawDots(void)
{
PsychWindowRecordType *windowRecord, *parentWindowRecord;
int m,n,p,mc,nc,idot_type;
int i, nrpoints, nrsize;
psych_bool isArgThere, usecolorvector, isdoublecolors, isuint8colors;
double *xy, *size, *center, *dot_type, *colors;
float *sizef;
unsigned char *bytecolors;
GLfloat pointsizerange[2];
psych_bool lenient = FALSE;
psych_bool usePointSizeArray = FALSE;
static psych_bool nocando = FALSE;
int oldverbosity;
// All sub functions should have these two lines
PsychPushHelp(useString, synopsisString,seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
// Check for superfluous arguments
PsychErrorExit(PsychCapNumInputArgs(7)); //The maximum number of inputs
PsychErrorExit(PsychCapNumOutputArgs(4)); //The maximum number of outputs
// Get the window record from the window record argument and get info from the window record
PsychAllocInWindowRecordArg(1, kPsychArgRequired, &windowRecord);
// Get dot_type argument, if any, as it is already needed for a pure point size range query below:
isArgThere = PsychIsArgPresent(PsychArgIn, 6);
if(!isArgThere){
idot_type = 0;
} else {
PsychAllocInDoubleMatArg(6, TRUE, &m, &n, &p, &dot_type);
if(p != 1 || n != 1 || m != 1 || (dot_type[0] < 0 || dot_type[0] > 4))
PsychErrorExitMsg(PsychError_user, "dot_type must be 0, 1, 2, 3 or 4");
idot_type = (int) dot_type[0];
}
// Query for supported point size range?
if (PsychGetNumOutputArgs() > 0) {
PsychSetDrawingTarget(windowRecord);
// Always query and return aliased range:
glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, (GLfloat*) &pointsizerange);
PsychCopyOutDoubleArg(3, FALSE, (double) pointsizerange[0]);
PsychCopyOutDoubleArg(4, FALSE, (double) pointsizerange[1]);
// If driver supports smooth points and usercode doesn't specify a dot type (idot_type 0)
// or does not request shader + point-sprite based drawing then return smooth point
// size range as "smooth point size range" - query and assign it. Otherwise, ie., code
// explicitely wants to use a shader (idot_type >= 3) or has to use one, we will use
// point-sprites and that means the GL_ALIASED_POINT_SIZE_RANGE limits apply also to
// our shader based smooth dots, so return those:
if ((windowRecord->gfxcaps & kPsychGfxCapSmoothPrimitives) && (idot_type < 3))
glGetFloatv(GL_POINT_SIZE_RANGE, (GLfloat*) &pointsizerange);
// Whatever the final choice for smooth dots is, return its limits:
PsychCopyOutDoubleArg(1, FALSE, (double) pointsizerange[0]);
PsychCopyOutDoubleArg(2, FALSE, (double) pointsizerange[1]);
// If this was only a query then we are done:
if (PsychGetNumInputArgs() < 2)
return(PsychError_none);
}
// Query, allocate and copy in all vectors...
nrpoints = 2;
nrsize = 0;
colors = NULL;
bytecolors = NULL;
PsychPrepareRenderBatch(windowRecord, 2, &nrpoints, &xy, 4, &nc, &mc, &colors, &bytecolors, 3, &nrsize, &size, (GL_FLOAT == PsychGLFloatType(windowRecord)));
isdoublecolors = (colors) ? TRUE:FALSE;
isuint8colors = (bytecolors) ? TRUE:FALSE;
usecolorvector = (nc>1) ? TRUE:FALSE;
// Assign sizef as float-type array of sizes, if float mode active, NULL otherwise:
sizef = (GL_FLOAT == PsychGLFloatType(windowRecord)) ? (float*) size : NULL;
// Get center argument
isArgThere = PsychIsArgPresent(PsychArgIn, 5);
if(!isArgThere){
center = (double *) PsychMallocTemp(2 * sizeof(double));
center[0] = 0;
center[1] = 0;
} else {
PsychAllocInDoubleMatArg(5, TRUE, &m, &n, &p, ¢er);
if(p!=1 || n!=2 || m!=1) PsychErrorExitMsg(PsychError_user, "center must be a 1-by-2 vector");
}
// Turn on antialiasing to draw circles? Or idot_type 4 for shader based square dots?
if (idot_type) {
// Smooth point rendering supported by gfx-driver and hardware? And user does not request our own stuff?
if ((idot_type == 3) || (idot_type == 4) || !(windowRecord->gfxcaps & kPsychGfxCapSmoothPrimitives)) {
// No. Need to roll our own shader + point sprite solution.
if (!windowRecord->smoothPointShader && !nocando) {
parentWindowRecord = PsychGetParentWindow(windowRecord);
if (!parentWindowRecord->smoothPointShader) {
// Build and assign shader to parent window, but allow this to silently fail:
oldverbosity = PsychPrefStateGet_Verbosity();
PsychPrefStateSet_Verbosity(0);
parentWindowRecord->smoothPointShader = PsychCreateGLSLProgram(PointSmoothFragmentShaderSrc, PointSmoothVertexShaderSrc, NULL);
PsychPrefStateSet_Verbosity(oldverbosity);
}
if (parentWindowRecord->smoothPointShader) {
// Got one compiled - assign it for use:
windowRecord->smoothPointShader = parentWindowRecord->smoothPointShader;
}
else {
// Failed. Record this failure so we can avoid retrying at next DrawDots invocation:
nocando = TRUE;
}
}
if (windowRecord->smoothPointShader) {
// Activate point smooth shader, and point sprite operation on texunit 1 for coordinates on set 1:
PsychSetShader(windowRecord, windowRecord->smoothPointShader);
glActiveTexture(GL_TEXTURE1);
glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
glActiveTexture(GL_TEXTURE0);
glEnable(GL_POINT_SPRITE);
// Tell shader from where to get its color information: Unclamped high precision colors from texture coordinate set 0, or regular colors from vertex color attribute?
glUniform1i(glGetUniformLocation(windowRecord->smoothPointShader, "useUnclampedFragColor"), (windowRecord->defaultDrawShader) ? 1 : 0);
// Tell shader if it should shade smooth round dots, or square dots:
glUniform1i(glGetUniformLocation(windowRecord->smoothPointShader, "drawRoundDots"), (idot_type != 4) ? 1 : 0);
// Tell shader about current point size in pointSize uniform:
glEnable(GL_PROGRAM_POINT_SIZE);
usePointSizeArray = TRUE;
}
else if (idot_type != 4) {
// Game over for round dot drawing:
PsychErrorExitMsg(PsychError_user, "Point smoothing unsupported on your system and our shader based implementation failed as well in Screen('DrawDots').");
}
else {
// Type 4 requested but unsupported. Fallback to type 0, which is the same, just slower:
idot_type = 0;
}
// Request square dots, without anti-aliasing: Better compatibility with
// shader + point sprite operation, and needed for idot_type 0 fallback.
glDisable(GL_POINT_SMOOTH);
glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, (GLfloat*) &pointsizerange);
}
else {
// User wants hw anti-aliased round smooth dots (idot_type = 1 or 2) and
// hardware + driver support this. Request smooth points from hardware:
glEnable(GL_POINT_SMOOTH);
glGetFloatv(GL_POINT_SIZE_RANGE, (GLfloat*) &pointsizerange);
// A dot type of 2 requests highest quality point smoothing:
glHint(GL_POINT_SMOOTH_HINT, (idot_type > 1) ? GL_NICEST : GL_DONT_CARE);
}
}
else {
glDisable(GL_POINT_SMOOTH);
glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, (GLfloat*) &pointsizerange);
}
// Does ES-GPU only support a fixed point diameter of 1 pixel?
if ((pointsizerange[1] <= 1) && PsychIsGLES(windowRecord)) {
// Yes. Not much point bailing on this, as it should be easily visible
// during testing of a studies code on a OpenGL-ES device.
lenient = TRUE;
}
// Accept optional 'lenient' flag, if provided:
PsychCopyInFlagArg(7, FALSE, &lenient);
// Set size of a single dot:
if (!lenient && ((sizef && (sizef[0] > pointsizerange[1] || sizef[0] < pointsizerange[0])) ||
(!sizef && (size[0] > pointsizerange[1] || size[0] < pointsizerange[0])))) {
printf("PTB-ERROR: You requested a point size of %f units, which is not in the range (%f to %f) supported by your graphics hardware.\n",
(sizef) ? sizef[0] : size[0], pointsizerange[0], pointsizerange[1]);
PsychErrorExitMsg(PsychError_user, "Unsupported point size requested in Screen('DrawDots').");
}
// Setup initial common point size for all points:
if (!usePointSizeArray) glPointSize((sizef) ? sizef[0] : (float) size[0]);
if (usePointSizeArray) glMultiTexCoord1f(GL_TEXTURE2, (sizef) ? sizef[0] : (float) size[0]);
// Setup modelview matrix to perform translation by 'center':
glMatrixMode(GL_MODELVIEW);
// Make a backup copy of the matrix:
glPushMatrix();
// Apply a global translation of (center(x,y)) pixels to all following points:
glTranslatef((float) center[0], (float) center[1], 0);
// Render the array of 2D-Points - Efficient version:
// This command sequence allows fast processing of whole arrays
// of vertices (or points, in this case). It saves the call overhead
// associated with the original implementation below and is potentially
// optimized in specific OpenGL implementations.
// Pass a pointer to the start of the point-coordinate array:
glVertexPointer(2, PSYCHGLFLOAT, 0, &xy[0]);
// Enable fast rendering of arrays:
glEnableClientState(GL_VERTEX_ARRAY);
if (usecolorvector) {
PsychSetupVertexColorArrays(windowRecord, TRUE, mc, colors, bytecolors);
}
// Render all n points, starting at point 0, render them as POINTS:
if ((nrsize == 1) || usePointSizeArray) {
// Only one common size provided, or efficient shader based
// path in use. We can use the fast path of only submitting
// one glDrawArrays call to draw all GL_POINTS. For a single
// common size, no further setup is needed.
if (nrsize > 1) {
// Individual size for each dot provided. Setup texture unit 2
// with a 1D texcoord array that stores per point size info in
// texture coordinate set 2. But first validate point sizes:
for (i = 0; i < nrpoints; i++) {
if (!lenient && ((sizef && (sizef[i] > pointsizerange[1] || sizef[i] < pointsizerange[0])) ||
(!sizef && (size[i] > pointsizerange[1] || size[i] < pointsizerange[0])))) {
printf("PTB-ERROR: You requested a point size of %f units, which is not in the range (%f to %f) supported by your graphics hardware.\n",
(sizef) ? sizef[i] : size[i], pointsizerange[0], pointsizerange[1]);
PsychErrorExitMsg(PsychError_user, "Unsupported point size requested in Screen('DrawDots').");
}
}
// Sizes are fine, setup texunit 2:
glClientActiveTexture(GL_TEXTURE2);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(1, (sizef) ? GL_FLOAT : GL_DOUBLE, 0, (sizef) ? (const GLvoid*) sizef : (const GLvoid*) size);
}
// Draw all points:
glDrawArrays(GL_POINTS, 0, nrpoints);
if (nrsize > 1) {
// Individual size for each dot provided. Reset texture unit 2:
glTexCoordPointer(1, (sizef) ? GL_FLOAT : GL_DOUBLE, 0, (const GLvoid*) NULL);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
// Back to default texunit 0:
glClientActiveTexture(GL_TEXTURE0);
}
}
else {
// Different size for each dot provided and we can't use our shader based implementation:
// We have to do One GL - call per dot:
for (i=0; i<nrpoints; i++) {
if (!lenient && ((sizef && (sizef[i] > pointsizerange[1] || sizef[i] < pointsizerange[0])) ||
(!sizef && (size[i] > pointsizerange[1] || size[i] < pointsizerange[0])))) {
printf("PTB-ERROR: You requested a point size of %f units, which is not in the range (%f to %f) supported by your graphics hardware.\n",
(sizef) ? sizef[i] : size[i], pointsizerange[0], pointsizerange[1]);
PsychErrorExitMsg(PsychError_user, "Unsupported point size requested in Screen('DrawDots').");
}
// Setup point size for this point:
if (!usePointSizeArray) glPointSize((sizef) ? sizef[i] : (float) size[i]);
// Render point:
glDrawArrays(GL_POINTS, i, 1);
}
}
// Disable fast rendering of arrays:
glDisableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, PSYCHGLFLOAT, 0, NULL);
if (usecolorvector) PsychSetupVertexColorArrays(windowRecord, FALSE, 0, NULL, NULL);
// Restore old matrix from backup copy, undoing the global translation:
glPopMatrix();
// turn off antialiasing again
if (idot_type) {
glDisable(GL_POINT_SMOOTH);
if (windowRecord->smoothPointShader) {
// Deactivate point smooth shader and point sprite operation on texunit 1:
PsychSetShader(windowRecord, 0);
glActiveTexture(GL_TEXTURE1);
glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_FALSE);
glActiveTexture(GL_TEXTURE0);
glDisable(GL_POINT_SPRITE);
glDisable(GL_PROGRAM_POINT_SIZE);
}
}
// Reset pointsize to 1.0
glPointSize(1);
// Mark end of drawing op. This is needed for single buffered drawing:
PsychFlushGL(windowRecord);
//All psychfunctions require this.
return(PsychError_none);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_GL13_nglMultiTexCoord1f(JNIEnv *__env, jclass clazz, jint texture, jfloat s, jlong __functionAddress) {
glMultiTexCoord1fPROC glMultiTexCoord1f = (glMultiTexCoord1fPROC)(intptr_t)__functionAddress;
UNUSED_PARAMS(__env, clazz)
glMultiTexCoord1f(texture, s);
}
void GL_DrawAliasBlendedFrame(aliashdr_t *paliashdr, int pose1, int pose2, float blend, int shell, int cell) {
//float l;
trivertx_t* verts1;
trivertx_t* verts2;
int* order;
int count;
vec3_t colour, normal;
//shell and new blending
vec3_t iblendshell;
vec3_t blendshell;
float iblend;
//cell shading
vec3_t lightVector;
lightVector[0] = 0;
lightVector[1] = 0;
lightVector[2] = 1;
if (r_celshading.getBool() || r_vertexshading.getBool()) {
//setup for shading
glActiveTexture(GL_TEXTURE1_ARB);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_1D);
if (r_celshading.getBool())
glBindTexture(GL_TEXTURE_1D, TextureManager::celtexture);
else
glBindTexture(GL_TEXTURE_1D, TextureManager::vertextexture);
}
lastposenum0 = pose1;
lastposenum = pose2;
verts1 = (trivertx_t *) ((byte *) paliashdr + paliashdr->posedata);
verts2 = verts1;
verts1 += pose1 * paliashdr->poseverts;
verts2 += pose2 * paliashdr->poseverts;
order = (int *) ((byte *) paliashdr + paliashdr->commands);
//LH: shell blending
iblend = 1.0 - blend;
if (shell) {
iblendshell[0] = iblend * 5;
iblendshell[1] = iblend * 5;
iblendshell[2] = iblend * 5;
blendshell[0] = blend * 5;
blendshell[1] = blend * 5;
blendshell[2] = blend * 5;
}
for (;;) {
// get the vertex count and primitive type
count = *order++;
if (!count) break;
if (count < 0) {
count = -count;
glBegin(GL_TRIANGLE_FAN);
} else {
glBegin(GL_TRIANGLE_STRIP);
}
do {
// normals and vertexes come from the frame list
// blend the light intensity from the two frames together
colour[0] = colour[1] = colour[2] = shadedots[verts1->lightnormalindex] * iblend + shadedots[verts2->lightnormalindex] * blend;
colour[0] *= lightcolor[0];
colour[1] *= lightcolor[1];
colour[2] *= lightcolor[2];
//if (colour[0] > 1) colour[0] = 1;
//if (colour[1] > 1) colour[1] = 1;
//if (colour[2] > 1) colour[2] = 1;
if ((!shell) && (!cell)) glColor3f(colour[0], colour[1], colour[2]);
normal[0] = (r_avertexnormals[verts1->lightnormalindex][0] * iblend + r_avertexnormals[verts2->lightnormalindex][0] * blend);
normal[1] = (r_avertexnormals[verts1->lightnormalindex][1] * iblend + r_avertexnormals[verts2->lightnormalindex][1] * blend);
normal[2] = (r_avertexnormals[verts1->lightnormalindex][2] * iblend + r_avertexnormals[verts2->lightnormalindex][2] * blend);
glNormal3fv(&normal[0]);
// blend the vertex positions from each frame together
if (!shell) {
// texture coordinates come from the draw list
glMultiTexCoord1f(GL_TEXTURE1_ARB, bound(0, DotProduct(shadevector, normal), 1));
glMultiTexCoord2f(GL_TEXTURE0_ARB, ((float *) order)[0], ((float *) order)[1]);
glVertex3f(verts1->v[0] * iblend + verts2->v[0] * blend,
verts1->v[1] * iblend + verts2->v[1] * blend,
verts1->v[2] * iblend + verts2->v[2] * blend);
} else {
glTexCoord2f(((float *) order)[0] + realtime * 2, ((float *) order)[1] + realtime * 2);
glVertex3f(verts1->v[0] * iblend + verts2->v[0] * blend + r_avertexnormals[verts1->lightnormalindex][0] * iblendshell[0] + r_avertexnormals[verts2->lightnormalindex][0] * blendshell[0],
verts1->v[1] * iblend + verts2->v[1] * blend + r_avertexnormals[verts1->lightnormalindex][1] * iblendshell[1] + r_avertexnormals[verts2->lightnormalindex][1] * blendshell[1],
verts1->v[2] * iblend + verts2->v[2] * blend + r_avertexnormals[verts1->lightnormalindex][2] * iblendshell[2] + r_avertexnormals[verts2->lightnormalindex][2] * blendshell[2]);
}
order += 2;
verts1++;
verts2++;
} while (--count);
glEnd();
}
if (r_celshading.getBool() || r_vertexshading.getBool()) {
//setup for shading
glDisable(GL_TEXTURE_1D);
glActiveTexture(GL_TEXTURE0_ARB);
}
}
void GL_DrawAliasFrame(aliashdr_t *paliashdr, int posenum, int shell, int cell) {
float l;
vec3_t colour, normal;
trivertx_t *verts;
int *order;
int count;
//cell shading
vec3_t lightVector;
lightVector[0] = 0;
lightVector[1] = 0;
lightVector[2] = 1;
lastposenum = posenum;
verts = (trivertx_t *) ((byte *) paliashdr + paliashdr->posedata);
verts += posenum * paliashdr->poseverts;
order = (int *) ((byte *) paliashdr + paliashdr->commands);
if (r_celshading.getBool() || r_vertexshading.getBool()) {
//setup for shading
glActiveTexture(GL_TEXTURE1_ARB);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_1D);
if (r_celshading.getBool())
glBindTexture(GL_TEXTURE_1D, TextureManager::celtexture);
else
glBindTexture(GL_TEXTURE_1D, TextureManager::vertextexture);
}
while (1) {
// get the vertex count and primitive type
count = *order++;
if (!count)
break; // done
if (count < 0) {
count = -count;
glBegin(GL_TRIANGLE_FAN);
} else
glBegin(GL_TRIANGLE_STRIP);
do {
// normals and vertexes come from the frame list
//qmb :alias coloured lighting
l = shadedots[verts->lightnormalindex];
VectorScale(lightcolor, l, colour);
//if (colour[0] > 1) colour[0] = 1;
//if (colour[1] > 1) colour[1] = 1;
//if (colour[2] > 1) colour[2] = 1;
if ((!shell) && (!cell)) glColor3f(colour[0], colour[1], colour[2]);
normal[0] = (r_avertexnormals[verts->lightnormalindex][0]);
normal[1] = (r_avertexnormals[verts->lightnormalindex][1]);
normal[2] = (r_avertexnormals[verts->lightnormalindex][2]);
glNormal3fv(&r_avertexnormals[verts->lightnormalindex][0]);
if (!shell) {
// texture coordinates come from the draw list
glMultiTexCoord1f(GL_TEXTURE1_ARB, bound(0, DotProduct(shadevector, normal), 1));
glMultiTexCoord2f(GL_TEXTURE0_ARB, ((float *) order)[0], ((float *) order)[1]);
glVertex3f(verts->v[0], verts->v[1], verts->v[2]);
} else {
glTexCoord2f(((float *) order)[0] + realtime * 2, ((float *) order)[1] + realtime * 2);
glVertex3f(r_avertexnormals[verts->lightnormalindex][0] * 5 + verts->v[0],
r_avertexnormals[verts->lightnormalindex][1] * 5 + verts->v[1],
r_avertexnormals[verts->lightnormalindex][2] * 5 + verts->v[2]);
}
order += 2;
verts++;
} while (--count);
glEnd();
}
if (r_celshading.getBool() || r_vertexshading.getBool()) {
//setup for shading
glDisable(GL_TEXTURE_1D);
glActiveTexture(GL_TEXTURE0_ARB);
}
}
