* Also, all error checking should have already been done.
*/
void
-_mesa_light(GLcontext *ctx, GLuint lnum, GLenum pname, const GLfloat *params)
+_mesa_light(struct gl_context *ctx, GLuint lnum, GLenum pname, const GLfloat *params)
{
struct gl_light *light;
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->SpotExponent = params[0];
- _mesa_invalidate_spot_exp_table(light);
break;
case GL_SPOT_CUTOFF:
ASSERT(params[0] == 180.0 || (params[0] >= 0.0 && params[0] <= 90.0));
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->SpotCutoff = params[0];
- light->_CosCutoffNeg = (GLfloat) (_mesa_cos(light->SpotCutoff * DEG2RAD));
- if (light->_CosCutoffNeg < 0)
+ light->_CosCutoff = (GLfloat) (cos(light->SpotCutoff * DEG2RAD));
+ if (light->_CosCutoff < 0)
light->_CosCutoff = 0;
- else
- light->_CosCutoff = light->_CosCutoffNeg;
if (light->SpotCutoff != 180.0F)
light->_Flags |= LIGHT_SPOT;
else
void GLAPIENTRY
_mesa_Lightf( GLenum light, GLenum pname, GLfloat param )
{
- _mesa_Lightfv( light, pname, ¶m );
+ GLfloat fparam[4];
+ fparam[0] = param;
+ fparam[1] = fparam[2] = fparam[3] = 0.0F;
+ _mesa_Lightfv( light, pname, fparam );
}
void GLAPIENTRY
_mesa_Lighti( GLenum light, GLenum pname, GLint param )
{
- _mesa_Lightiv( light, pname, ¶m );
+ GLint iparam[4];
+ iparam[0] = param;
+ iparam[1] = iparam[2] = iparam[3] = 0;
+ _mesa_Lightiv( light, pname, iparam );
}
void GLAPIENTRY
_mesa_LightModeli( GLenum pname, GLint param )
{
- _mesa_LightModeliv( pname, ¶m );
+ GLint iparam[4];
+ iparam[0] = param;
+ iparam[1] = iparam[2] = iparam[3] = 0;
+ _mesa_LightModeliv( pname, iparam );
}
void GLAPIENTRY
_mesa_LightModelf( GLenum pname, GLfloat param )
{
- _mesa_LightModelfv( pname, ¶m );
+ GLfloat fparam[4];
+ fparam[0] = param;
+ fparam[1] = fparam[2] = fparam[3] = 0.0F;
+ _mesa_LightModelfv( pname, fparam );
}
* of the targeted material values.
*/
GLuint
-_mesa_material_bitmask( GLcontext *ctx, GLenum face, GLenum pname,
+_mesa_material_bitmask( struct gl_context *ctx, GLenum face, GLenum pname,
GLuint legal, const char *where )
{
GLuint bitmask = 0;
bitmask |= MAT_BIT_FRONT_INDEXES | MAT_BIT_BACK_INDEXES;
break;
default:
- _mesa_error( ctx, GL_INVALID_ENUM, where );
+ _mesa_error( ctx, GL_INVALID_ENUM, "%s", where );
return 0;
}
bitmask &= BACK_MATERIAL_BITS;
}
else if (face != GL_FRONT_AND_BACK) {
- _mesa_error( ctx, GL_INVALID_ENUM, where );
+ _mesa_error( ctx, GL_INVALID_ENUM, "%s", where );
return 0;
}
if (bitmask & ~legal) {
- _mesa_error( ctx, GL_INVALID_ENUM, where );
+ _mesa_error( ctx, GL_INVALID_ENUM, "%s", where );
return 0;
}
-/* Perform a straight copy between materials.
- */
-void
-_mesa_copy_materials( struct gl_material *dst,
- const struct gl_material *src,
- GLuint bitmask )
-{
- int i;
-
- for (i = 0 ; i < MAT_ATTRIB_MAX ; i++)
- if (bitmask & (1<<i))
- COPY_4FV( dst->Attrib[i], src->Attrib[i] );
-}
+static void
+invalidate_shine_table( struct gl_context *ctx, GLuint side );
/* Update derived values following a change in ctx->Light.Material
*/
void
-_mesa_update_material( GLcontext *ctx, GLuint bitmask )
+_mesa_update_material( struct gl_context *ctx, GLuint bitmask )
{
struct gl_light *light, *list = &ctx->Light.EnabledList;
GLfloat (*mat)[4] = ctx->Light.Material.Attrib;
}
if (bitmask & MAT_BIT_FRONT_SHININESS) {
- _mesa_invalidate_shine_table( ctx, 0 );
+ invalidate_shine_table( ctx, 0 );
}
if (bitmask & MAT_BIT_BACK_SHININESS) {
- _mesa_invalidate_shine_table( ctx, 1 );
+ invalidate_shine_table( ctx, 1 );
}
}
* set by glColorMaterial().
*/
void
-_mesa_update_color_material( GLcontext *ctx, const GLfloat color[4] )
+_mesa_update_color_material( struct gl_context *ctx, const GLfloat color[4] )
{
GLuint bitmask = ctx->Light.ColorMaterialBitmask;
struct gl_material *mat = &ctx->Light.Material;
-/*
- * Whenever the spotlight exponent for a light changes we must call
- * this function to recompute the exponent lookup table.
- */
-void
-_mesa_invalidate_spot_exp_table( struct gl_light *l )
-{
- l->_SpotExpTable[0][0] = -1;
-}
-
-
-static void
-validate_spot_exp_table( struct gl_light *l )
-{
- GLint i;
- GLdouble exponent = l->SpotExponent;
- GLdouble tmp = 0;
- GLint clamp = 0;
-
- l->_SpotExpTable[0][0] = 0.0;
-
- for (i = EXP_TABLE_SIZE - 1; i > 0 ;i--) {
- if (clamp == 0) {
- tmp = _mesa_pow(i / (GLdouble) (EXP_TABLE_SIZE - 1), exponent);
- if (tmp < FLT_MIN * 100.0) {
- tmp = 0.0;
- clamp = 1;
- }
- }
- l->_SpotExpTable[i][0] = (GLfloat) tmp;
- }
- for (i = 0; i < EXP_TABLE_SIZE - 1; i++) {
- l->_SpotExpTable[i][1] = (l->_SpotExpTable[i+1][0] -
- l->_SpotExpTable[i][0]);
- }
- l->_SpotExpTable[EXP_TABLE_SIZE-1][1] = 0.0;
-}
-
-
-
/* Calculate a new shine table. Doing this here saves a branch in
* lighting, and the cost of doing it early may be partially offset
* by keeping a MRU cache of shine tables for various shine values.
*/
-void
-_mesa_invalidate_shine_table( GLcontext *ctx, GLuint side )
+static void
+invalidate_shine_table( struct gl_context *ctx, GLuint side )
{
ASSERT(side < 2);
if (ctx->_ShineTable[side])
static void
-validate_shine_table( GLcontext *ctx, GLuint side, GLfloat shininess )
+validate_shine_table( struct gl_context *ctx, GLuint side, GLfloat shininess )
{
struct gl_shine_tab *list = ctx->_ShineTabList;
struct gl_shine_tab *s;
GLdouble t, x = j / (GLfloat) (SHINE_TABLE_SIZE - 1);
if (x < 0.005) /* underflow check */
x = 0.005;
- t = _mesa_pow(x, shininess);
+ t = pow(x, shininess);
if (t > 1e-20)
m[j] = (GLfloat) t;
else
void
-_mesa_validate_all_lighting_tables( GLcontext *ctx )
+_mesa_validate_all_lighting_tables( struct gl_context *ctx )
{
- GLuint i;
GLfloat shininess;
shininess = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0];
shininess = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SHININESS][0];
if (!ctx->_ShineTable[1] || ctx->_ShineTable[1]->shininess != shininess)
validate_shine_table( ctx, 1, shininess );
-
- for (i = 0; i < ctx->Const.MaxLights; i++)
- if (ctx->Light.Light[i]._SpotExpTable[0][0] == -1)
- validate_spot_exp_table( &ctx->Light.Light[i] );
}
* source and material ambient, diffuse and specular coefficients.
*/
void
-_mesa_update_lighting( GLcontext *ctx )
+_mesa_update_lighting( struct gl_context *ctx )
{
struct gl_light *light;
ctx->Light._NeedEyeCoords = GL_FALSE;
* FLUSH_UPDATE_CURRENT, as when any outstanding material changes
* are flushed, they will update the derived state at that time.
*/
- if (ctx->Visual.rgbMode) {
- if (ctx->Light.Model.TwoSide)
- _mesa_update_material( ctx,
- MAT_BIT_FRONT_EMISSION |
- MAT_BIT_FRONT_AMBIENT |
- MAT_BIT_FRONT_DIFFUSE |
- MAT_BIT_FRONT_SPECULAR |
- MAT_BIT_BACK_EMISSION |
- MAT_BIT_BACK_AMBIENT |
- MAT_BIT_BACK_DIFFUSE |
- MAT_BIT_BACK_SPECULAR);
- else
- _mesa_update_material( ctx,
- MAT_BIT_FRONT_EMISSION |
- MAT_BIT_FRONT_AMBIENT |
- MAT_BIT_FRONT_DIFFUSE |
- MAT_BIT_FRONT_SPECULAR);
- }
- else {
- static const GLfloat ci[3] = { .30F, .59F, .11F };
- foreach(light, &ctx->Light.EnabledList) {
- light->_dli = DOT3(ci, light->Diffuse);
- light->_sli = DOT3(ci, light->Specular);
- }
- }
+ if (ctx->Light.Model.TwoSide)
+ _mesa_update_material(ctx,
+ MAT_BIT_FRONT_EMISSION |
+ MAT_BIT_FRONT_AMBIENT |
+ MAT_BIT_FRONT_DIFFUSE |
+ MAT_BIT_FRONT_SPECULAR |
+ MAT_BIT_BACK_EMISSION |
+ MAT_BIT_BACK_AMBIENT |
+ MAT_BIT_BACK_DIFFUSE |
+ MAT_BIT_BACK_SPECULAR);
+ else
+ _mesa_update_material(ctx,
+ MAT_BIT_FRONT_EMISSION |
+ MAT_BIT_FRONT_AMBIENT |
+ MAT_BIT_FRONT_DIFFUSE |
+ MAT_BIT_FRONT_SPECULAR);
}
* Also update on lighting space changes.
*/
static void
-compute_light_positions( GLcontext *ctx )
+compute_light_positions( struct gl_context *ctx )
{
struct gl_light *light;
static const GLfloat eye_z[3] = { 0, 0, 1 };
TRANSFORM_NORMAL( ctx->_EyeZDir, eye_z, ctx->ModelviewMatrixStack.Top->m );
}
+ /* Make sure all the light tables are updated before the computation */
+ _mesa_validate_all_lighting_tables(ctx);
+
foreach (light, &ctx->Light.EnabledList) {
if (ctx->_NeedEyeCoords) {
light->_NormSpotDirection);
if (PV_dot_dir > light->_CosCutoff) {
- double x = PV_dot_dir * (EXP_TABLE_SIZE-1);
- int k = (int) x;
light->_VP_inf_spot_attenuation =
- (GLfloat) (light->_SpotExpTable[k][0] +
- (x-k)*light->_SpotExpTable[k][1]);
+ powf(PV_dot_dir, light->SpotExponent);
}
else {
light->_VP_inf_spot_attenuation = 0;
static void
-update_modelview_scale( GLcontext *ctx )
+update_modelview_scale( struct gl_context *ctx )
{
ctx->_ModelViewInvScale = 1.0F;
if (!_math_matrix_is_length_preserving(ctx->ModelviewMatrixStack.Top)) {
* Bring up to date any state that relies on _NeedEyeCoords.
*/
void
-_mesa_update_tnl_spaces( GLcontext *ctx, GLuint new_state )
+_mesa_update_tnl_spaces( struct gl_context *ctx, GLuint new_state )
{
const GLuint oldneedeyecoords = ctx->_NeedEyeCoords;
* light-in-modelspace optimization. It's also useful for debugging.
*/
void
-_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag )
+_mesa_allow_light_in_model( struct gl_context *ctx, GLboolean flag )
{
ctx->_ForceEyeCoords = !flag;
ctx->NewState |= _NEW_POINT; /* one of the bits from
ASSIGN_4V( l->EyePosition, 0.0, 0.0, 1.0, 0.0 );
ASSIGN_3V( l->SpotDirection, 0.0, 0.0, -1.0 );
l->SpotExponent = 0.0;
- _mesa_invalidate_spot_exp_table( l );
l->SpotCutoff = 180.0;
- l->_CosCutoffNeg = -1.0f;
l->_CosCutoff = 0.0; /* KW: -ve values not admitted */
l->ConstantAttenuation = 1.0;
l->LinearAttenuation = 0.0;
* Initialize all lighting state for the given context.
*/
void
-_mesa_init_lighting( GLcontext *ctx )
+_mesa_init_lighting( struct gl_context *ctx )
{
GLuint i;
* Deallocate malloc'd lighting state attached to given context.
*/
void
-_mesa_free_lighting_data( GLcontext *ctx )
+_mesa_free_lighting_data( struct gl_context *ctx )
{
struct gl_shine_tab *s, *tmps;
/* Free lighting shininess exponentiation table */
foreach_s( s, tmps, ctx->_ShineTabList ) {
- _mesa_free( s );
+ free( s );
}
- _mesa_free( ctx->_ShineTabList );
+ free( ctx->_ShineTabList );
}
projects / mesa.git / blobdiff