/*
* Mesa 3-D graphics library
- * Version: 7.0
+ * Version: 7.5
*
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
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 );
}
+/**
+ * Set the provoking vertex (the vertex which specifies the prim's
+ * color when flat shading) to either the first or last vertex of the
+ * triangle or line.
+ */
+void GLAPIENTRY
+_mesa_ProvokingVertexEXT(GLenum mode)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glProvokingVertexEXT 0x%x\n", mode);
+
+ switch (mode) {
+ case GL_FIRST_VERTEX_CONVENTION_EXT:
+ case GL_LAST_VERTEX_CONVENTION_EXT:
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glProvokingVertexEXT(0x%x)", mode);
+ return;
+ }
+
+ if (ctx->Light.ProvokingVertex == mode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_LIGHT);
+ ctx->Light.ProvokingVertex = mode;
+}
+
+
/**
* Helper function called by _mesa_Lightfv and _mesa_PopAttrib to set
* per-light state.
* 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;
break;
case GL_SPOT_DIRECTION:
/* NOTE: Direction already transformed by inverse ModelView! */
- if (TEST_EQ_3V(light->EyeDirection, params))
+ if (TEST_EQ_3V(light->SpotDirection, params))
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
- COPY_3V(light->EyeDirection, params);
+ COPY_3V(light->SpotDirection, params);
break;
case GL_SPOT_EXPONENT:
ASSERT(params[0] >= 0.0);
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
light->SpotCutoff = params[0];
- light->_CosCutoffNeg = (GLfloat) (_mesa_cos(light->SpotCutoff * DEG2RAD));
+ light->_CosCutoffNeg = (GLfloat) (cos(light->SpotCutoff * DEG2RAD));
if (light->_CosCutoffNeg < 0)
light->_CosCutoff = 0;
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 );
}
GET_CURRENT_CONTEXT(ctx);
GLint i = (GLint) (light - GL_LIGHT0);
GLfloat temp[4];
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
if (i < 0 || i >= (GLint) ctx->Const.MaxLights) {
_mesa_error( ctx, GL_INVALID_ENUM, "glLight(light=0x%x)", light );
if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) {
_math_matrix_analyse(ctx->ModelviewMatrixStack.Top);
}
- TRANSFORM_NORMAL(temp, params, ctx->ModelviewMatrixStack.Top->inv);
+ TRANSFORM_DIRECTION(temp, params, ctx->ModelviewMatrixStack.Top->m);
params = temp;
break;
case GL_SPOT_EXPONENT:
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 );
}
COPY_4V( params, ctx->Light.Light[l].EyePosition );
break;
case GL_SPOT_DIRECTION:
- COPY_3V( params, ctx->Light.Light[l].EyeDirection );
+ COPY_3V( params, ctx->Light.Light[l].SpotDirection );
break;
case GL_SPOT_EXPONENT:
params[0] = ctx->Light.Light[l].SpotExponent;
params[3] = (GLint) ctx->Light.Light[l].EyePosition[3];
break;
case GL_SPOT_DIRECTION:
- params[0] = (GLint) ctx->Light.Light[l].EyeDirection[0];
- params[1] = (GLint) ctx->Light.Light[l].EyeDirection[1];
- params[2] = (GLint) ctx->Light.Light[l].EyeDirection[2];
+ params[0] = (GLint) ctx->Light.Light[l].SpotDirection[0];
+ params[1] = (GLint) ctx->Light.Light[l].SpotDirection[1];
+ params[2] = (GLint) ctx->Light.Light[l].SpotDirection[2];
break;
case GL_SPOT_EXPONENT:
params[0] = (GLint) ctx->Light.Light[l].SpotExponent;
return;
FLUSH_VERTICES(ctx, _NEW_LIGHT);
ctx->Light.Model.TwoSide = newbool;
+ if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
+ ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
+ else
+ ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
break;
case GL_LIGHT_MODEL_COLOR_CONTROL:
if (params[0] == (GLfloat) GL_SINGLE_COLOR)
break;
default:
/* Error will be caught later in gl_LightModelfv */
- ;
+ ASSIGN_4V(fparam, 0.0F, 0.0F, 0.0F, 0.0F);
}
_mesa_LightModelfv( pname, fparam );
}
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;
}
/* 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 (MESA_VERBOSE&VERBOSE_IMMEDIATE)
+ if (MESA_VERBOSE & VERBOSE_MATERIAL)
_mesa_debug(ctx, "_mesa_update_material, mask 0x%x\n", bitmask);
if (!bitmask)
* 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;
for (i = EXP_TABLE_SIZE - 1; i > 0 ;i--) {
if (clamp == 0) {
- tmp = _mesa_pow(i / (GLdouble) (EXP_TABLE_SIZE - 1), exponent);
+ tmp = pow(i / (GLdouble) (EXP_TABLE_SIZE - 1), exponent);
if (tmp < FLT_MIN * 100.0) {
tmp = 0.0;
clamp = 1;
* by keeping a MRU cache of shine tables for various shine values.
*/
void
-_mesa_invalidate_shine_table( GLcontext *ctx, GLuint side )
+_mesa_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;
* 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 };
}
else {
/* positional light w/ homogeneous coordinate, divide by W */
- GLfloat wInv = 1.0 / light->_Position[3];
+ GLfloat wInv = (GLfloat)1.0 / light->_Position[3];
light->_Position[0] *= wInv;
light->_Position[1] *= wInv;
light->_Position[2] *= wInv;
}
if (light->_Flags & LIGHT_SPOT) {
+ /* Note: we normalize the spot direction now */
+
if (ctx->_NeedEyeCoords) {
- COPY_3V( light->_NormDirection, light->EyeDirection );
+ COPY_3V( light->_NormSpotDirection, light->SpotDirection );
+ NORMALIZE_3FV( light->_NormSpotDirection );
}
else {
- TRANSFORM_NORMAL( light->_NormDirection,
- light->EyeDirection,
+ GLfloat spotDir[3];
+ COPY_3V(spotDir, light->SpotDirection);
+ NORMALIZE_3FV(spotDir);
+ TRANSFORM_NORMAL( light->_NormSpotDirection,
+ spotDir,
ctx->ModelviewMatrixStack.Top->m);
}
- NORMALIZE_3FV( light->_NormDirection );
+ NORMALIZE_3FV( light->_NormSpotDirection );
if (!(light->_Flags & LIGHT_POSITIONAL)) {
GLfloat PV_dot_dir = - DOT3(light->_VP_inf_norm,
- light->_NormDirection);
+ light->_NormSpotDirection);
if (PV_dot_dir > light->_CosCutoff) {
double x = PV_dot_dir * (EXP_TABLE_SIZE-1);
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;
ctx->Driver.LightingSpaceChange( ctx );
}
else {
- GLuint new_state = ctx->NewState;
+ GLuint new_state2 = ctx->NewState;
/* Recalculate that same state only if it has been invalidated
* by other statechanges.
*/
- if (new_state & _NEW_MODELVIEW)
+ if (new_state2 & _NEW_MODELVIEW)
update_modelview_scale(ctx);
- if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW))
+ if (new_state2 & (_NEW_LIGHT|_NEW_MODELVIEW))
compute_light_positions( ctx );
}
}
* 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->Specular, 0.0, 0.0, 0.0, 1.0 );
}
ASSIGN_4V( l->EyePosition, 0.0, 0.0, 1.0, 0.0 );
- ASSIGN_3V( l->EyeDirection, 0.0, 0.0, -1.0 );
+ ASSIGN_3V( l->SpotDirection, 0.0, 0.0, -1.0 );
l->SpotExponent = 0.0;
_mesa_invalidate_spot_exp_table( l );
l->SpotCutoff = 180.0;
* Initialize all lighting state for the given context.
*/
void
-_mesa_init_lighting( GLcontext *ctx )
+_mesa_init_lighting( struct gl_context *ctx )
{
GLuint i;
init_lightmodel( &ctx->Light.Model );
init_material( &ctx->Light.Material );
ctx->Light.ShadeModel = GL_SMOOTH;
+ ctx->Light.ProvokingVertex = GL_LAST_VERTEX_CONVENTION_EXT;
ctx->Light.Enabled = GL_FALSE;
ctx->Light.ColorMaterialFace = GL_FRONT_AND_BACK;
ctx->Light.ColorMaterialMode = GL_AMBIENT_AND_DIFFUSE;
/* Miscellaneous */
ctx->Light._NeedEyeCoords = GL_FALSE;
ctx->_NeedEyeCoords = GL_FALSE;
- ctx->_ForceEyeCoords = GL_TRUE;
+ ctx->_ForceEyeCoords = GL_FALSE;
ctx->_ModelViewInvScale = 1.0;
}
* 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 );
}
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