// any getUniform(WebGLProgram? program, WebGLUniformLocation? location);
JSBool JSB_glGetUniformfv(JSContext *cx, uint32_t argc, jsval *vp)
{
JSB_PRECONDITION2( argc == 2, cx, JS_FALSE, "JSB_glGetUniformfv: Invalid number of arguments" );
jsval *argvp = JS_ARGV(cx,vp);
JSBool ok = JS_TRUE;
uint32_t arg0, arg1;
ok &= jsval_to_uint( cx, *argvp++, &arg0 );
ok &= jsval_to_uint( cx, *argvp++, &arg1 );
JSB_PRECONDITION2(ok, cx, JS_FALSE, "JSB_glGetUniformfv: Error processing arguments");
GLsizei length;
glGetProgramiv(arg0, GL_ACTIVE_UNIFORM_MAX_LENGTH, &length);
GLchar* namebuffer = new GLchar[length+1];
GLint size = -1;
GLenum type = -1;
glGetActiveUniform(arg0, arg1, length, NULL, &size, &type, namebuffer);
CC_SAFE_DELETE_ARRAY(namebuffer);
int usize = 0;
int utype = 0;
switch(type) {
// float
case GL_FLOAT:
usize = 1;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT2:
usize = 2 * 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT3:
usize = 3 * 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT4:
usize = 4 * 4;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC2:
usize = 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC3:
usize = 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC4:
usize = 4;
utype = GL_FLOAT;
break;
// int
case GL_INT:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC2:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC3:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC4:
usize = 1;
utype = GL_INT;
break;
default:
JSB_PRECONDITION2(false, cx, JS_FALSE, "JSB_glGetUniformfv: Uniform Type not supported");
}
JSObject *typedArray = NULL;
if( utype == GL_FLOAT) {
// FIXME: glew on windows will cause array overflow after invoking glGetUniformfv.
// It seems that glGetUniformfv re-assign the memeroy with a wrong size which is 4x than we pass in.
// For temporary solution, we allocate 4x array.
GLfloat* param = new GLfloat[usize*4];
glGetUniformfv(arg0, arg1, param);
typedArray = JS_NewFloat32Array(cx, usize);
float *buffer = (float*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(float) * usize);
CC_SAFE_DELETE_ARRAY(param);
} else if( utype == GL_INT ) {
// FIXME: glew on windows will cause array overflow after invoking glGetUniformfv.
// It seems that glGetUniformfv re-assign the memeroy with a wrong size which is 4x than we pass in.
// For temporary solution, we allocate 4x array.
GLint* param = new GLint[usize*4];
glGetUniformiv(arg0, arg1, param);
typedArray = JS_NewInt32Array(cx, usize);
GLint *buffer = (GLint*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(GLint) * usize);
CC_SAFE_DELETE_ARRAY(param);
}
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(typedArray));
return JS_TRUE;
}
// any getUniform(WebGLProgram? program, WebGLUniformLocation? location);
bool JSB_glGetUniformfv(JSContext *cx, uint32_t argc, jsval *vp)
{
JSB_PRECONDITION2( argc == 2, cx, false, "JSB_glGetUniformfv: Invalid number of arguments" );
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
bool ok = true;
uint32_t arg0, arg1;
ok &= jsval_to_uint( cx, args.get(0), &arg0 );
ok &= jsval_to_uint( cx, args.get(1), &arg1 );
JSB_PRECONDITION2(ok, cx, false, "JSB_glGetUniformfv: Error processing arguments");
GLint activeUniforms;
glGetProgramiv(arg0, GL_ACTIVE_UNIFORMS, &activeUniforms);
GLsizei length;
glGetProgramiv(arg0, GL_ACTIVE_UNIFORM_MAX_LENGTH, &length);
GLchar* namebuffer = new (std::nothrow) GLchar[length+1];
GLint size = -1;
GLenum type = -1;
bool isLocationFound = false;
for(int i = 0; i < activeUniforms; ++i)
{
glGetActiveUniform(arg0, i, length, NULL, &size, &type, namebuffer);
if(arg1 == glGetUniformLocation(arg0, namebuffer))
{
isLocationFound = true;
break;
}
}
if(!isLocationFound)
{
size = -1;
type = -1;
}
CC_SAFE_DELETE_ARRAY(namebuffer);
int usize = 0;
int utype = 0;
switch(type) {
// float
case GL_FLOAT:
usize = 1;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT2:
usize = 2 * 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT3:
usize = 3 * 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT4:
usize = 4 * 4;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC2:
usize = 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC3:
usize = 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC4:
usize = 4;
utype = GL_FLOAT;
break;
// int
case GL_INT:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC2:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC3:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC4:
usize = 1;
utype = GL_INT;
break;
default:
JSB_PRECONDITION2(false, cx, false, "JSB_glGetUniformfv: Uniform Type not supported");
}
JSObject *typedArray = NULL;
if( utype == GL_FLOAT) {
// FIXME: glew on windows will cause array overflow after invoking glGetUniformfv.
// It seems that glGetUniformfv re-assign the memeroy with a wrong size which is 4x than we pass in.
// For temporary solution, we allocate 4x array.
GLfloat* param = new (std::nothrow) GLfloat[usize*4];
glGetUniformfv(arg0, arg1, param);
typedArray = JS_NewFloat32Array(cx, usize);
float *buffer = (float*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(float) * usize);
CC_SAFE_DELETE_ARRAY(param);
} else if( utype == GL_INT ) {
// FIXME: glew on windows will cause array overflow after invoking glGetUniformfv.
// It seems that glGetUniformfv re-assign the memeroy with a wrong size which is 4x than we pass in.
// For temporary solution, we allocate 4x array.
GLint* param = new (std::nothrow) GLint[usize*4];
glGetUniformiv(arg0, arg1, param);
typedArray = JS_NewInt32Array(cx, usize);
GLint *buffer = (GLint*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(GLint) * usize);
CC_SAFE_DELETE_ARRAY(param);
}
args.rval().set(OBJECT_TO_JSVAL(typedArray));
return true;
}
// any getUniform(WebGLProgram? program, WebGLUniformLocation? location);
JSBool JSB_glGetUniformfv(JSContext *cx, uint32_t argc, jsval *vp)
{
JSB_PRECONDITION2( argc == 2, cx, JS_FALSE, "JSB_glGetUniformfv: Invalid number of arguments" );
jsval *argvp = JS_ARGV(cx,vp);
JSBool ok = JS_TRUE;
uint32_t arg0, arg1;
ok &= jsval_to_uint( cx, *argvp++, &arg0 );
ok &= jsval_to_uint( cx, *argvp++, &arg1 );
JSB_PRECONDITION2(ok, cx, JS_FALSE, "JSB_glGetUniformfv: Error processing arguments");
GLsizei length;
glGetProgramiv(arg0, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &length);
GLchar* namebuffer = new GLchar[length];
GLint size = -1;
GLenum type = -1;
glGetActiveUniform(arg0, arg1, length, NULL, &size, &type, namebuffer);
CC_SAFE_DELETE_ARRAY(namebuffer);
int usize = 0;
int utype = 0;
switch(type) {
// float
case GL_FLOAT:
usize = 1;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT2:
usize = 2 * 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT3:
usize = 3 * 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_MAT4:
usize = 4 * 4;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC2:
usize = 2;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC3:
usize = 3;
utype = GL_FLOAT;
break;
case GL_FLOAT_VEC4:
usize = 4;
utype = GL_FLOAT;
break;
// int
case GL_INT:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC2:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC3:
usize = 1;
utype = GL_INT;
break;
case GL_INT_VEC4:
usize = 1;
utype = GL_INT;
break;
default:
JSB_PRECONDITION2(false, cx, JS_FALSE, "JSB_glGetUniformfv: Uniform Type not supported");
}
JSObject *typedArray = NULL;
if( utype == GL_FLOAT) {
GLfloat* param = new GLfloat[usize];
glGetUniformfv(arg0, arg1, param);
typedArray = JS_NewFloat32Array(cx, usize);
float *buffer = (float*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(float) * usize);
CC_SAFE_DELETE_ARRAY(param);
} else if( utype == GL_INT ) {
GLint* param = new GLint[usize];
glGetUniformiv(arg0, arg1, param);
typedArray = JS_NewInt32Array(cx, usize);
GLint *buffer = (GLint*)JS_GetArrayBufferViewData(typedArray);
memcpy( buffer, param, sizeof(GLint) * usize);
CC_SAFE_DELETE_ARRAY(param);
}
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(typedArray));
return JS_TRUE;
}
