void GLAPIENTRY
_mesa_PointParameterfv( GLenum pname, const GLfloat *params)
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (pname) {
case GL_DISTANCE_ATTENUATION_EXT:
if (ctx->Extensions.EXT_point_parameters) {
if (TEST_EQ_3V(ctx->Point.Params, params))
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
COPY_3V(ctx->Point.Params, params);
ctx->Point._Attenuated = (ctx->Point.Params[0] != 1.0 ||
ctx->Point.Params[1] != 0.0 ||
ctx->Point.Params[2] != 0.0);
if (ctx->Point._Attenuated)
ctx->_TriangleCaps |= DD_POINT_ATTEN;
else
ctx->_TriangleCaps &= ~DD_POINT_ATTEN;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_SIZE_MIN_EXT:
if (ctx->Extensions.EXT_point_parameters) {
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.MinSize == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.MinSize = params[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_SIZE_MAX_EXT:
if (ctx->Extensions.EXT_point_parameters) {
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.MaxSize == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.MaxSize = params[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_FADE_THRESHOLD_SIZE_EXT:
if (ctx->Extensions.EXT_point_parameters) {
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.Threshold == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.Threshold = params[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_SPRITE_R_MODE_NV:
/* This is one area where ARB_point_sprite and NV_point_sprite
* differ. In ARB_point_sprite the POINT_SPRITE_R_MODE is
* always ZERO. NV_point_sprite adds the S and R modes.
*/
if (ctx->Extensions.NV_point_sprite) {
GLenum value = (GLenum) params[0];
if (value != GL_ZERO && value != GL_S && value != GL_R) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)");
return;
}
if (ctx->Point.SpriteRMode == value)
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.SpriteRMode = value;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_SPRITE_COORD_ORIGIN:
if (ctx->Extensions.ARB_point_sprite || ctx->Extensions.NV_point_sprite) {
GLenum value = (GLenum) params[0];
if (value != GL_LOWER_LEFT && value != GL_UPPER_LEFT) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)");
return;
}
if (ctx->Point.SpriteOrigin == value)
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.SpriteOrigin = value;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)" );
return;
}
if (ctx->Driver.PointParameterfv)
(*ctx->Driver.PointParameterfv)(ctx, pname, params);
}
void GLAPIENTRY
_mesa_PointParameterfv( GLenum pname, const GLfloat *params)
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
/* Drivers that support point sprites must also support point parameters.
* If point parameters aren't supported, then this function shouldn't even
* exist.
*/
ASSERT(!(ctx->Extensions.ARB_point_sprite
|| ctx->Extensions.NV_point_sprite)
|| ctx->Extensions.EXT_point_parameters);
if (!ctx->Extensions.EXT_point_parameters) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"unsupported function called (unsupported extension)");
return;
}
switch (pname) {
case GL_DISTANCE_ATTENUATION_EXT:
if (TEST_EQ_3V(ctx->Point.Params, params))
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
COPY_3V(ctx->Point.Params, params);
ctx->Point._Attenuated = (ctx->Point.Params[0] != 1.0 ||
ctx->Point.Params[1] != 0.0 ||
ctx->Point.Params[2] != 0.0);
if (ctx->Point._Attenuated)
ctx->_TriangleCaps |= DD_POINT_ATTEN;
else
ctx->_TriangleCaps &= ~DD_POINT_ATTEN;
break;
case GL_POINT_SIZE_MIN_EXT:
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.MinSize == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.MinSize = params[0];
break;
case GL_POINT_SIZE_MAX_EXT:
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.MaxSize == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.MaxSize = params[0];
break;
case GL_POINT_FADE_THRESHOLD_SIZE_EXT:
if (params[0] < 0.0F) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)" );
return;
}
if (ctx->Point.Threshold == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.Threshold = params[0];
break;
case GL_POINT_SPRITE_R_MODE_NV:
/* This is one area where ARB_point_sprite and NV_point_sprite
* differ. In ARB_point_sprite the POINT_SPRITE_R_MODE is
* always ZERO. NV_point_sprite adds the S and R modes.
*/
if (_mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_point_sprite) {
GLenum value = (GLenum) params[0];
if (value != GL_ZERO && value != GL_S && value != GL_R) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)");
return;
}
if (ctx->Point.SpriteRMode == value)
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.SpriteRMode = value;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
case GL_POINT_SPRITE_COORD_ORIGIN:
/* GL_POINT_SPRITE_COORD_ORIGIN was added to point sprites when the
* extension was merged into OpenGL 2.0.
*/
if ((ctx->API == API_OPENGL && ctx->Version >= 20)
|| ctx->API == API_OPENGL_CORE) {
GLenum value = (GLenum) params[0];
if (value != GL_LOWER_LEFT && value != GL_UPPER_LEFT) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glPointParameterf[v]{EXT,ARB}(param)");
return;
}
if (ctx->Point.SpriteOrigin == value)
return;
FLUSH_VERTICES(ctx, _NEW_POINT);
ctx->Point.SpriteOrigin = value;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)");
return;
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM,
"glPointParameterf[v]{EXT,ARB}(pname)" );
return;
}
if (ctx->Driver.PointParameterfv)
(*ctx->Driver.PointParameterfv)(ctx, pname, params);
}
void
_mesa_Lightfv( GLenum light, GLenum pname, const GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
GLint i = (GLint) (light - GL_LIGHT0);
struct gl_light *l = &ctx->Light.Light[i];
if (i < 0 || i >= (GLint) ctx->Const.MaxLights) {
_mesa_error( ctx, GL_INVALID_ENUM, "glLight" );
return;
}
switch (pname) {
case GL_AMBIENT:
if (TEST_EQ_4V(l->Ambient, params))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
COPY_4V( l->Ambient, params );
break;
case GL_DIFFUSE:
if (TEST_EQ_4V(l->Diffuse, params))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
COPY_4V( l->Diffuse, params );
break;
case GL_SPECULAR:
if (TEST_EQ_4V(l->Specular, params))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
COPY_4V( l->Specular, params );
break;
case GL_POSITION: {
GLfloat tmp[4];
/* transform position by ModelView matrix */
TRANSFORM_POINT( tmp, ctx->ModelView.m, params );
if (TEST_EQ_4V(l->EyePosition, tmp))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
COPY_4V(l->EyePosition, tmp);
if (l->EyePosition[3] != 0.0F)
l->_Flags |= LIGHT_POSITIONAL;
else
l->_Flags &= ~LIGHT_POSITIONAL;
break;
}
case GL_SPOT_DIRECTION: {
GLfloat tmp[4];
/* transform direction by inverse modelview */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
_math_matrix_analyse( &ctx->ModelView );
}
TRANSFORM_NORMAL( tmp, params, ctx->ModelView.inv );
if (TEST_EQ_3V(l->EyeDirection, tmp))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
COPY_3V(l->EyeDirection, tmp);
break;
}
case GL_SPOT_EXPONENT:
if (params[0]<0.0 || params[0]>128.0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glLight" );
return;
}
if (l->SpotExponent == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
l->SpotExponent = params[0];
_mesa_invalidate_spot_exp_table( l );
break;
case GL_SPOT_CUTOFF:
if ((params[0]<0.0 || params[0]>90.0) && params[0]!=180.0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glLight" );
return;
}
if (l->SpotCutoff == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
l->SpotCutoff = params[0];
l->_CosCutoff = (GLfloat) cos(params[0]*DEG2RAD);
if (l->_CosCutoff < 0)
l->_CosCutoff = 0;
if (l->SpotCutoff != 180.0F)
l->_Flags |= LIGHT_SPOT;
else
l->_Flags &= ~LIGHT_SPOT;
break;
case GL_CONSTANT_ATTENUATION:
if (params[0]<0.0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glLight" );
return;
}
if (l->ConstantAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
l->ConstantAttenuation = params[0];
break;
case GL_LINEAR_ATTENUATION:
if (params[0]<0.0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glLight" );
return;
}
if (l->LinearAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
l->LinearAttenuation = params[0];
break;
case GL_QUADRATIC_ATTENUATION:
if (params[0]<0.0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glLight" );
return;
}
if (l->QuadraticAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
l->QuadraticAttenuation = params[0];
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glLight" );
return;
}
if (ctx->Driver.Lightfv)
ctx->Driver.Lightfv( ctx, light, pname, params );
}
