void drawPoint(const Vec2& point)
{
lazy_init();
Vec2 p;
p.x = point.x;
p.y = point.y;
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
s_shader->setUniformLocationWith1f(s_pointSizeLocation, s_pointSize);
#ifdef EMSCRIPTEN
setGLBufferData(&p, 8);
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, &p);
#endif // EMSCRIPTEN
glDrawArrays(GL_POINTS, 0, 1);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,1);
}
void drawSolidPoly(const KKPoint* poli, unsigned int numberOfPoints)
{
lazy_init();
shader_->use();
shader_->setUniformForModelViewProjectionMatrix();
colorUniform->setUniform4fv((GLfloat *)&color_.r, 1);
CHECK_GL_ERROR_DEBUG();
glEnableVertexAttribArray(kVertexAttrib_Position);
//开启顶点属性数组
GLfloat *newPoli = new GLfloat(numberOfPoints*2);
if (sizeof(KKPoint) == sizeof(GLfloat)*2) {
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, poli);
}
else
{
for (unsigned int i = 0; i < numberOfPoints; i++) {
newPoli[i*2] = poli[i].x;
newPoli[i*2+1] = poli[i].y;
}
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei)numberOfPoints);//将顶点数组使用三角形渲染，GL_TRIANGLE_FAN表示矩形， 0表示数组第一个值的位置，2表示数组长度
delete newPoli;
}
void drawSolidCircle( const Vec2& center, float radius, float angle, unsigned int segments, float scaleX, float scaleY)
{
lazy_init();
const float coef = 2.0f * (float)M_PI/segments;
GLfloat *vertices = (GLfloat*)calloc( sizeof(GLfloat)*2*(segments+2), 1);
if( ! vertices )
return;
for(unsigned int i = 0;i <= segments; i++) {
float rads = i*coef;
GLfloat j = radius * cosf(rads + angle) * scaleX + center.x;
GLfloat k = radius * sinf(rads + angle) * scaleY + center.y;
vertices[i*2] = j;
vertices[i*2+1] = k;
}
vertices[(segments+1)*2] = center.x;
vertices[(segments+1)*2+1] = center.y;
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) segments+1);
::free( vertices );
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,segments+1);
}
void ccDrawCubicBezier(const CCPoint& origin, const CCPoint& control1, const CCPoint& control2, const CCPoint& destination, unsigned int segments)
{
lazy_init();
ccVertex2F* vertices = new ccVertex2F[segments + 1];
float t = 0;
for(unsigned int i = 0; i < segments; i++)
{
vertices[i].x = powf(1 - t, 3) * origin.x + 3.0f * powf(1 - t, 2) * t * control1.x + 3.0f * (1 - t) * t * t * control2.x + t * t * t * destination.x;
vertices[i].y = powf(1 - t, 3) * origin.y + 3.0f * powf(1 - t, 2) * t * control1.y + 3.0f * (1 - t) * t * t * control2.y + t * t * t * destination.y;
t += 1.0f / segments;
}
vertices[segments].x = destination.x;
vertices[segments].y = destination.y;
shader_->use();
shader_->setUniformForModelViewProjectionMatrix();
shader_->setUniformLocationWith4fv(colorLocation_, (GLfloat*) &color_.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawPoint( const CCPoint& point )
{
lazy_init();
ccVertex2F p;
p.x = point.x;
p.y = point.y;
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
s_pShader->setUniformLocationWith1f(s_nPointSizeLocation, s_fPointSize);
#ifdef EMSCRIPTEN
setGLBufferData(&p, 8);
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, &p);
#endif // EMSCRIPTEN
glDrawArrays(GL_POINTS, 0, 1);
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawPoints( const CCPoint *points, unsigned int numberOfPoints )
{
lazy_init();
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
shader_->use();
shader_->setUniformForModelViewProjectionMatrix();
shader_->setUniformLocationWith4fv(colorLocation_, (GLfloat*) &color_.r, 1);
shader_->setUniformLocationWith1f(pointSizeLocation_, pointSize_);
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
ccVertex2F* newPoints = new ccVertex2F[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(CCPoint) == sizeof(ccVertex2F) )
{
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, points);
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints;i++) {
newPoints[i].x = points[i].x;
newPoints[i].y = points[i].y;
}
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoints);
}
glDrawArrays(GL_POINTS, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoints);
CC_INCREMENT_GL_DRAWS(1);
}
void drawSolidPoly(const Vec2 *poli, unsigned int numberOfPoints, Color4F color)
{
lazy_init();
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
// FIXME: Mac OpenGL error. arrays can't go out of scope before draw is executed
Vec2* newPoli = new (std::nothrow) Vec2[numberOfPoints];
// iPhone and 32-bit machines optimization
if (sizeof(Vec2) == sizeof(Vec2))
{
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, poli);
}
else
{
// Mac on 64-bit
for(unsigned int i = 0; i < numberOfPoints; i++)
{
newPoli[i].set(poli[i].x, poli[i].y);
}
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, numberOfPoints);
}
void ccDrawCubicBezier(const CCPoint& origin, const CCPoint& control1, const CCPoint& control2, const CCPoint& destination, unsigned int segments)
{
lazy_init();
ccVertex2F* vertices = new ccVertex2F[segments + 1];
float t = 0;
for(unsigned int i = 0; i < segments; i++)
{
vertices[i].x = powf(1 - t, 3) * origin.x + 3.0f * powf(1 - t, 2) * t * control1.x + 3.0f * (1 - t) * t * t * control2.x + t * t * t * destination.x;
vertices[i].y = powf(1 - t, 3) * origin.y + 3.0f * powf(1 - t, 2) * t * control1.y + 3.0f * (1 - t) * t * t * control2.y + t * t * t * destination.y;
t += 1.0f / segments;
}
vertices[segments].x = destination.x;
vertices[segments].y = destination.y;
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, (segments + 1) * sizeof(ccVertex2F));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawSolidPoly( const CCPoint *poli, unsigned int numberOfPoints, ccColor4F color )
{
lazy_init();
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &color.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
ccVertex2F* newPoli = new ccVertex2F[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(CCPoint) == sizeof(ccVertex2F) )
{
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, poli);
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints; i++)
{
newPoli[i] = vertex2( poli[i].x, poli[i].y );
}
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawQuadBezier(const CCPoint& origin, const CCPoint& control, const CCPoint& destination, unsigned int segments)
{
lazy_init();
ccVertex2F* vertices = new ccVertex2F[segments + 1];
float t = 0.0f;
for(unsigned int i = 0; i < segments; i++)
{
vertices[i].x = powf(1 - t, 2) * origin.x + 2.0f * (1 - t) * t * control.x + t * t * destination.x;
vertices[i].y = powf(1 - t, 2) * origin.y + 2.0f * (1 - t) * t * control.y + t * t * destination.y;
t += 1.0f / segments;
}
vertices[segments].x = destination.x;
vertices[segments].y = destination.y;
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWS(1);
}
void drawCubicBezier(const Vec2& origin, const Vec2& control1, const Vec2& control2, const Vec2& destination, unsigned int segments)
{
lazy_init();
Vec2* vertices = new (std::nothrow) Vec2[segments + 1];
float t = 0;
for (unsigned int i = 0; i < segments; i++)
{
vertices[i].x = powf(1 - t, 3) * origin.x + 3.0f * powf(1 - t, 2) * t * control1.x + 3.0f * (1 - t) * t * t * control2.x + t * t * t * destination.x;
vertices[i].y = powf(1 - t, 3) * origin.y + 3.0f * powf(1 - t, 2) * t * control1.y + 3.0f * (1 - t) * t * t * control2.y + t * t * t * destination.y;
t += 1.0f / segments;
}
vertices[segments].x = destination.x;
vertices[segments].y = destination.y;
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, (segments + 1) * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,segments+1);
}
void drawPoly(const KKPoint *poli, unsigned int numberOfPoints, bool closePolygon)
{
lazy_init();
shader_->setUniformForModelViewProjectionMatrix();
colorUniform->setUniform4fv((GLfloat *)&color_.r, 1);
CHECK_GL_ERROR_DEBUG();
glEnableVertexAttribArray(kVertexAttrib_Position);
//开启顶点属性数组
GLfloat *newPoli = new GLfloat(numberOfPoints*2);
if (sizeof(KKPoint) == sizeof(GLfloat)*2) {
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, poli);
}
else
{
for (unsigned int i = 0; i < numberOfPoints; i++) {
newPoli[i*2] = poli[i].x;
newPoli[i*2+1] = poli[i].y;
}
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
}
if (closePolygon) {
glDrawArrays(GL_LINE_LOOP, 0, (GLsizei) numberOfPoints);
}
else
{
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) numberOfPoints);
}
delete newPoli;
}
void printf_format_handler_register_static(PrintfFormatHandler* handler)
{
if (!initialized)
lazy_init();
//bei mehrdeutigkeiten wird der zuletzt registrierte handler aufgerufen
//das ist ganz was wir wollen
handler->next = handler_list;
handler_list = handler;
}
void ccDrawPoly( const CCPoint *poli, unsigned int numberOfPoints, bool closePolygon )
{
lazy_init();
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
glLineWidth(1);
// iPhone and 32-bit machines optimization
if( sizeof(CCPoint) == sizeof(ccVertex2F) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) poli, numberOfPoints * sizeof(CCPoint));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, poli);
#endif // EMSCRIPTEN
if( closePolygon )
glDrawArrays(GL_LINE_LOOP, 0, (GLsizei) numberOfPoints);
else
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) numberOfPoints);
}
else
{
// Mac on 64-bit
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
ccVertex2F* newPoli = new ccVertex2F[numberOfPoints];
for( unsigned int i=0; i<numberOfPoints;i++) {
newPoli[i].x = poli[i].x;
newPoli[i].y = poli[i].y;
}
#ifdef EMSCRIPTEN
setGLBufferData(newPoli, numberOfPoints * sizeof(ccVertex2F));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
#endif // EMSCRIPTEN
if( closePolygon )
glDrawArrays(GL_LINE_LOOP, 0, (GLsizei) numberOfPoints);
else
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
}
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawCardinalSpline( CCPointArray *config, float tension, unsigned int segments )
{
lazy_init();
ccVertex2F* vertices = new ccVertex2F[segments + 1];
unsigned int p;
float lt;
float deltaT = 1.0f / config->count();
for( unsigned int i=0; i < segments+1;i++) {
float dt = (float)i / segments;
// border
if( dt == 1 ) {
p = config->count() - 1;
lt = 1;
} else {
p = dt / deltaT;
lt = (dt - deltaT * (float)p) / deltaT;
}
// Interpolate
CCPoint pp0 = config->get(p-1);
CCPoint pp1 = config->get(p+0);
CCPoint pp2 = config->get(p+1);
CCPoint pp3 = config->get(p+2);
CCPoint newPos = ccCardinalSplineAt( pp0, pp1, pp2, pp3, tension, lt);
vertices[i].x = newPos.x;
vertices[i].y = newPos.y;
}
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*)&s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, (segments + 1) * sizeof(ccVertex2F));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWS(1);
}
void drawPoly(const Vec2 *poli, unsigned int numberOfPoints, bool closePolygon)
{
lazy_init();
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
// iPhone and 32-bit machines optimization
if( sizeof(Vec2) == sizeof(Vec2) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) poli, numberOfPoints * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, poli);
#endif // EMSCRIPTEN
if( closePolygon )
glDrawArrays(GL_LINE_LOOP, 0, (GLsizei) numberOfPoints);
else
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) numberOfPoints);
}
else
{
// Mac on 64-bit
// FIXME: Mac OpenGL error. arrays can't go out of scope before draw is executed
Vec2* newPoli = new (std::nothrow) Vec2[numberOfPoints];
for( unsigned int i=0; i<numberOfPoints;i++) {
newPoli[i].x = poli[i].x;
newPoli[i].y = poli[i].y;
}
#ifdef EMSCRIPTEN
setGLBufferData(newPoli, numberOfPoints * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
#endif // EMSCRIPTEN
if( closePolygon )
glDrawArrays(GL_LINE_LOOP, 0, (GLsizei) numberOfPoints);
else
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
}
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, numberOfPoints);
}
void drawCardinalSpline( PointArray *config, float tension, unsigned int segments )
{
lazy_init();
Vec2* vertices = new (std::nothrow) Vec2[segments + 1];
ssize_t p;
float lt;
float deltaT = 1.0f / config->count();
for( unsigned int i=0; i < segments+1;i++) {
float dt = (float)i / segments;
// border
if( dt == 1 ) {
p = config->count() - 1;
lt = 1;
} else {
p = dt / deltaT;
lt = (dt - deltaT * (float)p) / deltaT;
}
// Interpolate
Vec2 pp0 = config->getControlPointAtIndex(p-1);
Vec2 pp1 = config->getControlPointAtIndex(p+0);
Vec2 pp2 = config->getControlPointAtIndex(p+1);
Vec2 pp3 = config->getControlPointAtIndex(p+2);
Vec2 newPos = ccCardinalSplineAt( pp0, pp1, pp2, pp3, tension, lt);
vertices[i].x = newPos.x;
vertices[i].y = newPos.y;
}
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*)&s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, (segments + 1) * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments + 1);
CC_SAFE_DELETE_ARRAY(vertices);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,segments+1);
}
void
acc_set_device_num (int n, acc_device_t d)
{
const struct gomp_device_descr *dev;
int num_devices;
if (!base_dev)
gomp_init_targets_once ();
if ((int) d == 0)
{
int i;
/* A device setting of zero sets all device types on the system to use
the Nth instance of that device type. Only attempt it for initialized
devices though. */
for (i = acc_device_not_host + 1; i < _ACC_device_hwm; i++)
{
dev = resolve_device (d);
if (dev && dev->is_initialized)
dev->openacc.set_device_num_func (n);
}
/* ...and for future calls to acc_init/acc_set_device_type, etc. */
goacc_device_num = n;
}
else
{
struct goacc_thread *thr = goacc_thread ();
gomp_mutex_lock (&acc_device_lock);
base_dev = lazy_init (d);
num_devices = base_dev->get_num_devices_func ();
if (n >= num_devices)
gomp_fatal ("device %u out of range", n);
/* If we're changing the device number, de-associate this thread with
the device (but don't close the device, since it may be in use by
other threads). */
if (thr && thr->dev && n != thr->dev->target_id)
thr->dev = NULL;
lazy_open (n);
gomp_mutex_unlock (&acc_device_lock);
}
}
static void
lazy_init_and_open (acc_device_t d)
{
if (!base_dev)
gomp_init_targets_once ();
gomp_mutex_lock (&acc_device_lock);
base_dev = lazy_init (d);
lazy_open (-1);
gomp_mutex_unlock (&acc_device_lock);
}
int buffer_append(struct buffer* b, const void* data, size_t n)
{
assert(b);
if(unlikely(b->data == NULL) &&
unlikely(lazy_init(b)))
return 1;
if(unlikely(buffer_reserve(b, b->len + n)))
return 1;
memcpy(b->data + b->len, data, n);
b->len += n;
return 0;
}
void ccDrawLines(ccVertex2F* vertices,int size)
{
lazy_init();
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_LINE_STRIP, 0, size);
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawPoints( const CCPoint *points, unsigned int numberOfPoints )
{
lazy_init();
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
s_pShader->setUniformLocationWith1f(s_nPointSizeLocation, s_fPointSize);
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
ccVertex2F* newPoints = new ccVertex2F[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(CCPoint) == sizeof(ccVertex2F) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) points, numberOfPoints * sizeof(CCPoint));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, points);
#endif // EMSCRIPTEN
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints;i++) {
newPoints[i].x = points[i].x;
newPoints[i].y = points[i].y;
}
#ifdef EMSCRIPTEN
// Suspect Emscripten won't be emitting 64-bit code for a while yet,
// but want to make sure this continues to work even if they do.
setGLBufferData(newPoints, numberOfPoints * sizeof(ccVertex2F));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, newPoints);
#endif // EMSCRIPTEN
}
glDrawArrays(GL_POINTS, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoints);
CC_INCREMENT_GL_DRAWS(1);
}
void drawCircle( const Point& center, float width, float height, float angle, unsigned int segments, bool drawLineToCenter, float scaleX, float scaleY)
{
lazy_init();
width *= 0.5f;
height *= 0.5f;
int additionalSegment = 1;
if (drawLineToCenter)
additionalSegment++;
const float coef = 2.0f * (float)M_PI/segments;
GLfloat *vertices = (GLfloat*)calloc( sizeof(GLfloat)*2*(segments+2), 1);
if( ! vertices )
return;
for(unsigned int i = 0;i <= segments; i++) {
float rads = i*coef;
GLfloat j = width * cosf(rads + angle) * scaleX + center.x;
GLfloat k = height * sinf(rads + angle) * scaleY + center.y;
vertices[i*2] = j;
vertices[i*2+1] = k;
}
vertices[(segments+1)*2] = center.x;
vertices[(segments+1)*2+1] = center.y;
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, sizeof(GLfloat)*2*(segments+2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) segments+additionalSegment);
::free( vertices );
CC_INCREMENT_GL_DRAWS(1);
}
void drawPoints( const Vec2 *points, unsigned int numberOfPoints )
{
lazy_init();
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
s_shader->setUniformLocationWith1f(s_pointSizeLocation, s_pointSize);
// FIXME: Mac OpenGL error. arrays can't go out of scope before draw is executed
Vec2* newPoints = new (std::nothrow) Vec2[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(Vec2) == sizeof(Vec2) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) points, numberOfPoints * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, points);
#endif // EMSCRIPTEN
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints;i++) {
newPoints[i].x = points[i].x;
newPoints[i].y = points[i].y;
}
#ifdef EMSCRIPTEN
// Suspect Emscripten won't be emitting 64-bit code for a while yet,
// but want to make sure this continues to work even if they do.
setGLBufferData(newPoints, numberOfPoints * sizeof(Vec2));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, newPoints);
#endif // EMSCRIPTEN
}
glDrawArrays(GL_POINTS, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoints);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, numberOfPoints);
}
void drawLine(const KKPoint& origin, const KKPoint& dest)
{
lazy_init();
GLfloat vertices[4] = {origin.x, origin.y, dest.x, dest.y};
shader_->use();
CHECK_GL_ERROR_DEBUG();
shader_->setUniformForModelViewProjectionMatrix();
CHECK_GL_ERROR_DEBUG();
colorUniform->setUniform4fv((GLfloat *)&color_.r, 1);
CHECK_GL_ERROR_DEBUG();
//开启顶点属性数组
glEnableVertexAttribArray(kVertexAttrib_Position);
//为顶点着色器位置信息赋值，positionSlot表示顶点着色器位置属性（即，Position）；2表示每一个顶点信息由几个值组成，这个值必须位1，2，3或4；GL_FLOAT表示顶点信息的数据类型；GL_FALSE表示不要将数据类型标准化（即fixed-point）；stride表示数组中每个元素的长度；pCoords表示数组的首地址
glVertexAttribPointer(kVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
CHECK_GL_ERROR_DEBUG();
glDrawArrays(GL_LINE, 0, 2);//将顶点数组使用三角形渲染，GL_LINE表示直线， 0表示数组第一个值的位置，2表示数组长度
}
void ccDrawLine( const CCPoint& origin, const CCPoint& destination )
{
lazy_init();
ccVertex2F vertices[2] = {
{origin.x, origin.y},
{destination.x, destination.y}
};
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_LINES, 0, 2);
CC_INCREMENT_GL_DRAWS(1);
}
void drawSolidPoly( const Point *poli, unsigned int numberOfPoints, Color4F color )
{
lazy_init();
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
Vertex2F* newPoli = new Vertex2F[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(Point) == sizeof(Vertex2F) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) poli, numberOfPoints * sizeof(Point));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, poli);
#endif // EMSCRIPTEN
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints;i++)
{
newPoli[i] = Vertex2F( poli[i].x, poli[i].y );
}
#ifdef EMSCRIPTEN
setGLBufferData(newPoli, numberOfPoints * sizeof(Vertex2F));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
#endif // EMSCRIPTEN
}
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
CC_INCREMENT_GL_DRAWS(1);
}
void drawLine(const Vec2& origin, const Vec2& destination)
{
lazy_init();
Vec2 vertices[2] = {
Vec2(origin.x, origin.y),
Vec2(destination.x, destination.y)
};
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
glDrawArrays(GL_LINES, 0, 2);
CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1,2);
}
void ccDrawCircle(const CCPoint& center, float radius, float angle, unsigned int segments, bool drawLineToCenter, float scaleX, float scaleY, bool fill)
{
lazy_init();
int additionalSegment = 1;
if (drawLineToCenter)
additionalSegment++;
const float coef = 2.0f * (float)M_PI/segments;
GLfloat *vertices = (GLfloat*)calloc( sizeof(GLfloat)*2*(segments+2), 1);
if( ! vertices )
return;
for(unsigned int i = 0;i <= segments; i++) {
float rads = i*coef;
GLfloat j = radius * cosf(rads + angle) * scaleX + center.x;
GLfloat k = radius * sinf(rads + angle) * scaleY + center.y;
vertices[i*2] = j;
vertices[i*2+1] = k;
}
vertices[(segments+1)*2] = center.x;
vertices[(segments+1)*2+1] = center.y;
s_pShader->use();
s_pShader->setUniformsForBuiltins();
s_pShader->setUniformLocationWith4fv(s_nColorLocation, (GLfloat*) &s_tColor.r, 1);
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, sizeof(GLfloat)*2*(segments+2));
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(fill ? GL_TRIANGLE_FAN : GL_LINE_STRIP, 0, (GLsizei)segments + additionalSegment);
free( vertices );
CC_INCREMENT_GL_DRAWS(1);
}
void ccDrawPoint( const CCPoint& point )
{
lazy_init();
ccVertex2F p;
p.x = point.x;
p.y = point.y;
ccGLEnableVertexAttribs( kCCVertexAttribFlag_Position );
shader_->use();
shader_->setUniformForModelViewProjectionMatrix();
shader_->setUniformLocationWith4fv(colorLocation_, (GLfloat*) &color_.r, 1);
shader_->setUniformLocationWith1f(pointSizeLocation_, pointSize_);
glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, &p);
glDrawArrays(GL_POINTS, 0, 1);
CC_INCREMENT_GL_DRAWS(1);
}