FLUSH_VERTICES(ctx, _NEW_LIGHT);
ctx->Light.ShadeModel = mode;
- if (mode == GL_FLAT)
- ctx->_TriangleCaps |= DD_FLATSHADE;
- else
- ctx->_TriangleCaps &= ~DD_FLATSHADE;
if (ctx->Driver.ShadeModel)
ctx->Driver.ShadeModel( ctx, mode );
COPY_4V( ctx->Light.Model.Ambient, params );
break;
case GL_LIGHT_MODEL_LOCAL_VIEWER:
+ if (ctx->API != API_OPENGL)
+ goto invalid_pname;
newbool = (params[0]!=0.0);
if (ctx->Light.Model.LocalViewer == newbool)
return;
ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
break;
case GL_LIGHT_MODEL_COLOR_CONTROL:
+ if (ctx->API != API_OPENGL)
+ goto invalid_pname;
if (params[0] == (GLfloat) GL_SINGLE_COLOR)
newenum = GL_SINGLE_COLOR;
else if (params[0] == (GLfloat) GL_SEPARATE_SPECULAR_COLOR)
ctx->Light.Model.ColorControl = newenum;
break;
default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glLightModel(pname=0x%x)", pname );
- break;
+ goto invalid_pname;
}
if (ctx->Driver.LightModelfv)
ctx->Driver.LightModelfv( ctx, pname, params );
+
+ return;
+
+invalid_pname:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glLightModel(pname=0x%x)", pname );
+ return;
}
-static void
-invalidate_shine_table( struct gl_context *ctx, GLuint side );
-
-
-
/* Update derived values following a change in ctx->Light.Material
*/
void
mat[MAT_ATTRIB_BACK_SPECULAR]);
}
}
-
- if (bitmask & MAT_BIT_FRONT_SHININESS) {
- invalidate_shine_table( ctx, 0 );
- }
-
- if (bitmask & MAT_BIT_BACK_SHININESS) {
- invalidate_shine_table( ctx, 1 );
- }
}
/*
* Update the current materials from the given rgba color
- * according to the bitmask in ColorMaterialBitmask, which is
+ * according to the bitmask in _ColorMaterialBitmask, which is
* set by glColorMaterial().
*/
void
_mesa_update_color_material( struct gl_context *ctx, const GLfloat color[4] )
{
- GLuint bitmask = ctx->Light.ColorMaterialBitmask;
+ const GLbitfield bitmask = ctx->Light._ColorMaterialBitmask;
struct gl_material *mat = &ctx->Light.Material;
int i;
_mesa_lookup_enum_by_nr(mode));
bitmask = _mesa_material_bitmask(ctx, face, mode, legal, "glColorMaterial");
+ if (bitmask == 0)
+ return; /* error was recorded */
- if (ctx->Light.ColorMaterialBitmask == bitmask &&
+ if (ctx->Light._ColorMaterialBitmask == bitmask &&
ctx->Light.ColorMaterialFace == face &&
ctx->Light.ColorMaterialMode == mode)
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
- ctx->Light.ColorMaterialBitmask = bitmask;
+ ctx->Light._ColorMaterialBitmask = bitmask;
ctx->Light.ColorMaterialFace = face;
ctx->Light.ColorMaterialMode = mode;
*params = mat[MAT_ATTRIB_SHININESS(f)][0];
break;
case GL_COLOR_INDEXES:
+ if (ctx->API != API_OPENGL) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetMaterialfv(pname)" );
+ return;
+ }
params[0] = mat[MAT_ATTRIB_INDEXES(f)][0];
params[1] = mat[MAT_ATTRIB_INDEXES(f)][1];
params[2] = mat[MAT_ATTRIB_INDEXES(f)][2];
GLfloat (*mat)[4] = ctx->Light.Material.Attrib;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* update materials */
+ ASSERT(ctx->API == API_OPENGL);
+
FLUSH_CURRENT(ctx, 0); /* update ctx->Light.Material from vertex buffer */
if (face==GL_FRONT) {
-/**********************************************************************/
-/***** Lighting computation *****/
-/**********************************************************************/
-
-
-/*
- * Notes:
- * When two-sided lighting is enabled we compute the color (or index)
- * for both the front and back side of the primitive. Then, when the
- * orientation of the facet is later learned, we can determine which
- * color (or index) to use for rendering.
- *
- * KW: We now know orientation in advance and only shade for
- * the side or sides which are actually required.
- *
- * Variables:
- * n = normal vector
- * V = vertex position
- * P = light source position
- * Pe = (0,0,0,1)
- *
- * Precomputed:
- * IF P[3]==0 THEN
- * // light at infinity
- * IF local_viewer THEN
- * _VP_inf_norm = unit vector from V to P // Precompute
- * ELSE
- * // eye at infinity
- * _h_inf_norm = Normalize( VP + <0,0,1> ) // Precompute
- * ENDIF
- * ENDIF
- *
- * Functions:
- * Normalize( v ) = normalized vector v
- * Magnitude( v ) = length of vector v
- */
-
-
-
-/* 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.
- */
-static void
-invalidate_shine_table( struct gl_context *ctx, GLuint side )
-{
- ASSERT(side < 2);
- if (ctx->_ShineTable[side])
- ctx->_ShineTable[side]->refcount--;
- ctx->_ShineTable[side] = NULL;
-}
-
-
-static void
-validate_shine_table( struct gl_context *ctx, GLuint side, GLfloat shininess )
-{
- struct gl_shine_tab *list = ctx->_ShineTabList;
- struct gl_shine_tab *s;
-
- ASSERT(side < 2);
-
- foreach(s, list)
- if ( s->shininess == shininess )
- break;
-
- if (s == list) {
- GLint j;
- GLfloat *m;
-
- foreach(s, list)
- if (s->refcount == 0)
- break;
-
- m = s->tab;
- m[0] = 0.0;
- if (shininess == 0.0) {
- for (j = 1 ; j <= SHINE_TABLE_SIZE ; j++)
- m[j] = 1.0;
- }
- else {
- for (j = 1 ; j < SHINE_TABLE_SIZE ; j++) {
- GLdouble t, x = j / (GLfloat) (SHINE_TABLE_SIZE - 1);
- if (x < 0.005) /* underflow check */
- x = 0.005;
- t = pow(x, shininess);
- if (t > 1e-20)
- m[j] = (GLfloat) t;
- else
- m[j] = 0.0;
- }
- m[SHINE_TABLE_SIZE] = 1.0;
- }
-
- s->shininess = shininess;
- }
-
- if (ctx->_ShineTable[side])
- ctx->_ShineTable[side]->refcount--;
-
- ctx->_ShineTable[side] = s;
- move_to_tail( list, s );
- s->refcount++;
-}
-
-
-void
-_mesa_validate_all_lighting_tables( struct gl_context *ctx )
-{
- GLfloat shininess;
-
- shininess = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0];
- if (!ctx->_ShineTable[0] || ctx->_ShineTable[0]->shininess != shininess)
- validate_shine_table( ctx, 0, shininess );
-
- 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 );
-}
-
-
/**
* Examine current lighting parameters to determine if the optimized lighting
* function can be used.
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) {
if (ctx->_NeedEyeCoords)
ctx->_ModelViewInvScale = (GLfloat) INV_SQRTF(f);
else
- ctx->_ModelViewInvScale = (GLfloat) SQRTF(f);
+ ctx->_ModelViewInvScale = (GLfloat) sqrtf(f);
}
}
ctx->Light.Enabled = GL_FALSE;
ctx->Light.ColorMaterialFace = GL_FRONT_AND_BACK;
ctx->Light.ColorMaterialMode = GL_AMBIENT_AND_DIFFUSE;
- ctx->Light.ColorMaterialBitmask = _mesa_material_bitmask( ctx,
+ ctx->Light._ColorMaterialBitmask = _mesa_material_bitmask( ctx,
GL_FRONT_AND_BACK,
GL_AMBIENT_AND_DIFFUSE, ~0,
NULL );
ctx->Light.ColorMaterialEnabled = GL_FALSE;
ctx->Light.ClampVertexColor = GL_TRUE;
- /* Lighting miscellaneous */
- ctx->_ShineTabList = MALLOC_STRUCT( gl_shine_tab );
- make_empty_list( ctx->_ShineTabList );
- /* Allocate 10 (arbitrary) shininess lookup tables */
- for (i = 0 ; i < 10 ; i++) {
- struct gl_shine_tab *s = MALLOC_STRUCT( gl_shine_tab );
- s->shininess = -1;
- s->refcount = 0;
- insert_at_tail( ctx->_ShineTabList, s );
- }
-
/* Miscellaneous */
ctx->Light._NeedEyeCoords = GL_FALSE;
ctx->_NeedEyeCoords = GL_FALSE;
void
_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 ) {
- free( s );
- }
- free( ctx->_ShineTabList );
}
projects / mesa.git / blobdiff