#include "enums.h"
#include "light.h"
#include "macros.h"
-#include "util/simple_list.h"
#include "mtypes.h"
#include "math/m_matrix.h"
+#include "util/bitscan.h"
void GLAPIENTRY
COPY_3V(light->SpotDirection, params);
break;
case GL_SPOT_EXPONENT:
- assert(params[0] >= 0.0);
+ assert(params[0] >= 0.0F);
assert(params[0] <= ctx->Const.MaxSpotExponent);
if (light->SpotExponent == params[0])
return;
light->SpotExponent = params[0];
break;
case GL_SPOT_CUTOFF:
- assert(params[0] == 180.0 || (params[0] >= 0.0 && params[0] <= 90.0));
+ assert(params[0] == 180.0F || (params[0] >= 0.0F && params[0] <= 90.0F));
if (light->SpotCutoff == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->SpotCutoff = params[0];
- light->_CosCutoff = (GLfloat) (cos(light->SpotCutoff * M_PI / 180.0));
+ light->_CosCutoff = (cosf(light->SpotCutoff * M_PI / 180.0));
if (light->_CosCutoff < 0)
light->_CosCutoff = 0;
if (light->SpotCutoff != 180.0F)
light->_Flags &= ~LIGHT_SPOT;
break;
case GL_CONSTANT_ATTENUATION:
- assert(params[0] >= 0.0);
+ assert(params[0] >= 0.0F);
if (light->ConstantAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->ConstantAttenuation = params[0];
break;
case GL_LINEAR_ATTENUATION:
- assert(params[0] >= 0.0);
+ assert(params[0] >= 0.0F);
if (light->LinearAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->LinearAttenuation = params[0];
break;
case GL_QUADRATIC_ATTENUATION:
- assert(params[0] >= 0.0);
+ assert(params[0] >= 0.0F);
if (light->QuadraticAttenuation == params[0])
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
params = temp;
break;
case GL_SPOT_EXPONENT:
- if (params[0] < 0.0 || params[0] > ctx->Const.MaxSpotExponent) {
+ if (params[0] < 0.0F || params[0] > ctx->Const.MaxSpotExponent) {
_mesa_error(ctx, GL_INVALID_VALUE, "glLight");
return;
}
break;
case GL_SPOT_CUTOFF:
- if ((params[0] < 0.0 || params[0] > 90.0) && params[0] != 180.0) {
+ if ((params[0] < 0.0F || params[0] > 90.0F) && params[0] != 180.0F) {
_mesa_error(ctx, GL_INVALID_VALUE, "glLight");
return;
}
break;
case GL_CONSTANT_ATTENUATION:
- if (params[0] < 0.0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glLight");
- return;
- }
- break;
case GL_LINEAR_ATTENUATION:
- if (params[0] < 0.0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glLight");
- return;
- }
- break;
case GL_QUADRATIC_ATTENUATION:
- if (params[0] < 0.0) {
+ if (params[0] < 0.0F) {
_mesa_error(ctx, GL_INVALID_VALUE, "glLight");
return;
}
case GL_LIGHT_MODEL_LOCAL_VIEWER:
if (ctx->API != API_OPENGL_COMPAT)
goto invalid_pname;
- newbool = (params[0]!=0.0);
+ newbool = (params[0] != 0.0F);
if (ctx->Light.Model.LocalViewer == newbool)
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
ctx->Light.Model.LocalViewer = newbool;
break;
case GL_LIGHT_MODEL_TWO_SIDE:
- newbool = (params[0]!=0.0);
+ newbool = (params[0] != 0.0F);
if (ctx->Light.Model.TwoSide == newbool)
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
void
_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 (MESA_VERBOSE & VERBOSE_MATERIAL)
/* update material ambience */
if (bitmask & MAT_BIT_FRONT_AMBIENT) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatAmbient[0], light->Ambient,
mat[MAT_ATTRIB_FRONT_AMBIENT]);
}
}
if (bitmask & MAT_BIT_BACK_AMBIENT) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatAmbient[1], light->Ambient,
mat[MAT_ATTRIB_BACK_AMBIENT]);
}
/* update material diffuse values */
if (bitmask & MAT_BIT_FRONT_DIFFUSE) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatDiffuse[0], light->Diffuse,
mat[MAT_ATTRIB_FRONT_DIFFUSE] );
}
}
if (bitmask & MAT_BIT_BACK_DIFFUSE) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatDiffuse[1], light->Diffuse,
mat[MAT_ATTRIB_BACK_DIFFUSE] );
}
/* update material specular values */
if (bitmask & MAT_BIT_FRONT_SPECULAR) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatSpecular[0], light->Specular,
mat[MAT_ATTRIB_FRONT_SPECULAR]);
}
}
if (bitmask & MAT_BIT_BACK_SPECULAR) {
- foreach (light, list) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
SCALE_3V( light->_MatSpecular[1], light->Specular,
mat[MAT_ATTRIB_BACK_SPECULAR]);
}
void
_mesa_update_color_material( struct gl_context *ctx, const GLfloat color[4] )
{
- const GLbitfield bitmask = ctx->Light._ColorMaterialBitmask;
+ GLbitfield bitmask = ctx->Light._ColorMaterialBitmask;
struct gl_material *mat = &ctx->Light.Material;
- int i;
- for (i = 0 ; i < MAT_ATTRIB_MAX ; i++)
- if (bitmask & (1<<i))
- COPY_4FV( mat->Attrib[i], color );
+ while (bitmask) {
+ const int i = u_bit_scan(&bitmask);
+
+ COPY_4FV( mat->Attrib[i], color );
+ }
_mesa_update_material( ctx, bitmask );
}
_mesa_update_lighting( struct gl_context *ctx )
{
GLbitfield flags = 0;
- struct gl_light *light;
ctx->Light._NeedEyeCoords = GL_FALSE;
if (!ctx->Light.Enabled)
return;
- foreach(light, &ctx->Light.EnabledList) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
flags |= light->_Flags;
}
static void
compute_light_positions( struct gl_context *ctx )
{
- struct gl_light *light;
static const GLfloat eye_z[3] = { 0, 0, 1 };
if (!ctx->Light.Enabled)
TRANSFORM_NORMAL( ctx->_EyeZDir, eye_z, ctx->ModelviewMatrixStack.Top->m );
}
- foreach (light, &ctx->Light.EnabledList) {
+ GLbitfield mask = ctx->Light._EnabledLights;
+ while (mask) {
+ const int i = u_bit_scan(&mask);
+ struct gl_light *light = &ctx->Light.Light[i];
if (ctx->_NeedEyeCoords) {
/* _Position is in eye coordinate space */
}
else {
/* positional light w/ homogeneous coordinate, divide by W */
- GLfloat wInv = (GLfloat)1.0 / light->_Position[3];
+ GLfloat wInv = 1.0F / light->_Position[3];
light->_Position[0] *= wInv;
light->_Position[1] *= wInv;
light->_Position[2] *= wInv;
if (!_math_matrix_is_length_preserving(ctx->ModelviewMatrixStack.Top)) {
const GLfloat *m = ctx->ModelviewMatrixStack.Top->inv;
GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10];
- if (f < 1e-12) f = 1.0;
+ if (f < 1e-12f) f = 1.0f;
if (ctx->_NeedEyeCoords)
ctx->_ModelViewInvScale = 1.0f / sqrtf(f);
else
static void
init_light( struct gl_light *l, GLuint n )
{
- make_empty_list( l );
-
ASSIGN_4V( l->Ambient, 0.0, 0.0, 0.0, 1.0 );
if (n==0) {
ASSIGN_4V( l->Diffuse, 1.0, 1.0, 1.0, 1.0 );
GLuint i;
/* Lighting group */
+ ctx->Light._EnabledLights = 0;
for (i = 0; i < MAX_LIGHTS; i++) {
init_light( &ctx->Light.Light[i], i );
}
- make_empty_list( &ctx->Light.EnabledList );
init_lightmodel( &ctx->Light.Model );
init_material( &ctx->Light.Material );