X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Flight.c;h=0cf2635765f112f9639b5d2384f726dccc1b039d;hb=675b92515ab016038ab47f37d83631fb3713384e;hp=201938d4aa73b69978c690a2069b9caadabfd907;hpb=367d308b8267ad86cd7623590b7bfd4737b5fbf5;p=mesa.git diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c index 201938d4aa7..0cf2635765f 100644 --- a/src/mesa/main/light.c +++ b/src/mesa/main/light.c @@ -1,10 +1,8 @@ -/* $Id: light.c,v 1.54 2002/10/25 21:06:29 brianp Exp $ */ - /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 6.1 * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2004 Brian Paul 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"), @@ -27,25 +25,16 @@ #include "glheader.h" #include "imports.h" -#include "colormac.h" #include "context.h" #include "enums.h" #include "light.h" #include "macros.h" -#include "mmath.h" #include "simple_list.h" #include "mtypes.h" -#include "math/m_xform.h" #include "math/m_matrix.h" -/* XXX this is a bit of a hack needed for compilation within XFree86 */ -#ifndef FLT_MIN -#define FLT_MIN 1e-37 -#endif - - -void +void GLAPIENTRY _mesa_ShadeModel( GLenum mode ) { GET_CURRENT_CONTEXT(ctx); @@ -70,15 +59,14 @@ _mesa_ShadeModel( GLenum mode ) } - -void +void GLAPIENTRY _mesa_Lightf( GLenum light, GLenum pname, GLfloat param ) { _mesa_Lightfv( light, pname, ¶m ); } -void +void GLAPIENTRY _mesa_Lightfv( GLenum light, GLenum pname, const GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); @@ -137,7 +125,7 @@ _mesa_Lightfv( GLenum light, GLenum pname, const GLfloat *params ) break; } case GL_SPOT_EXPONENT: - if (params[0]<0.0 || params[0]>128.0) { + if (params[0]<0.0 || params[0]>ctx->Const.MaxSpotExponent) { _mesa_error( ctx, GL_INVALID_VALUE, "glLight" ); return; } @@ -204,14 +192,14 @@ _mesa_Lightfv( GLenum light, GLenum pname, const GLfloat *params ) } -void +void GLAPIENTRY _mesa_Lighti( GLenum light, GLenum pname, GLint param ) { _mesa_Lightiv( light, pname, ¶m ); } -void +void GLAPIENTRY _mesa_Lightiv( GLenum light, GLenum pname, const GLint *params ) { GLfloat fparam[4]; @@ -253,7 +241,7 @@ _mesa_Lightiv( GLenum light, GLenum pname, const GLint *params ) -void +void GLAPIENTRY _mesa_GetLightfv( GLenum light, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); @@ -303,8 +291,7 @@ _mesa_GetLightfv( GLenum light, GLenum pname, GLfloat *params ) } - -void +void GLAPIENTRY _mesa_GetLightiv( GLenum light, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); @@ -374,7 +361,7 @@ _mesa_GetLightiv( GLenum light, GLenum pname, GLint *params ) /**********************************************************************/ -void +void GLAPIENTRY _mesa_LightModelfv( GLenum pname, const GLfloat *params ) { GLenum newenum; @@ -422,14 +409,6 @@ _mesa_LightModelfv( GLenum pname, const GLfloat *params ) return; FLUSH_VERTICES(ctx, _NEW_LIGHT); ctx->Light.Model.ColorControl = newenum; - - if ((ctx->Light.Enabled && - ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) - || ctx->Fog.ColorSumEnabled) - ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; - else - ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR; - break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glLightModel(pname=0x%x)", pname ); @@ -441,7 +420,7 @@ _mesa_LightModelfv( GLenum pname, const GLfloat *params ) } -void +void GLAPIENTRY _mesa_LightModeliv( GLenum pname, const GLint *params ) { GLfloat fparam[4]; @@ -466,14 +445,14 @@ _mesa_LightModeliv( GLenum pname, const GLint *params ) } -void +void GLAPIENTRY _mesa_LightModeli( GLenum pname, GLint param ) { _mesa_LightModeliv( pname, ¶m ); } -void +void GLAPIENTRY _mesa_LightModelf( GLenum pname, GLfloat param ) { _mesa_LightModelfv( pname, ¶m ); @@ -497,26 +476,26 @@ _mesa_material_bitmask( GLcontext *ctx, GLenum face, GLenum pname, /* Make a bitmask indicating what material attribute(s) we're updating */ switch (pname) { case GL_EMISSION: - bitmask |= FRONT_EMISSION_BIT | BACK_EMISSION_BIT; + bitmask |= MAT_BIT_FRONT_EMISSION | MAT_BIT_BACK_EMISSION; break; case GL_AMBIENT: - bitmask |= FRONT_AMBIENT_BIT | BACK_AMBIENT_BIT; + bitmask |= MAT_BIT_FRONT_AMBIENT | MAT_BIT_BACK_AMBIENT; break; case GL_DIFFUSE: - bitmask |= FRONT_DIFFUSE_BIT | BACK_DIFFUSE_BIT; + bitmask |= MAT_BIT_FRONT_DIFFUSE | MAT_BIT_BACK_DIFFUSE; break; case GL_SPECULAR: - bitmask |= FRONT_SPECULAR_BIT | BACK_SPECULAR_BIT; + bitmask |= MAT_BIT_FRONT_SPECULAR | MAT_BIT_BACK_SPECULAR; break; case GL_SHININESS: - bitmask |= FRONT_SHININESS_BIT | BACK_SHININESS_BIT; + bitmask |= MAT_BIT_FRONT_SHININESS | MAT_BIT_BACK_SHININESS; break; case GL_AMBIENT_AND_DIFFUSE: - bitmask |= FRONT_AMBIENT_BIT | BACK_AMBIENT_BIT; - bitmask |= FRONT_DIFFUSE_BIT | BACK_DIFFUSE_BIT; + bitmask |= MAT_BIT_FRONT_AMBIENT | MAT_BIT_BACK_AMBIENT; + bitmask |= MAT_BIT_FRONT_DIFFUSE | MAT_BIT_BACK_DIFFUSE; break; case GL_COLOR_INDEXES: - bitmask |= FRONT_INDEXES_BIT | BACK_INDEXES_BIT; + bitmask |= MAT_BIT_FRONT_INDEXES | MAT_BIT_BACK_INDEXES; break; default: _mesa_error( ctx, GL_INVALID_ENUM, where ); @@ -543,306 +522,134 @@ _mesa_material_bitmask( GLcontext *ctx, GLenum face, GLenum pname, } -/* Perform a straight copy between pairs of materials. + +/* Perform a straight copy between materials. */ -void _mesa_copy_material_pairs( struct gl_material dst[2], - const struct gl_material src[2], - GLuint bitmask ) +void +_mesa_copy_materials( struct gl_material *dst, + const struct gl_material *src, + GLuint bitmask ) { - if (bitmask & FRONT_EMISSION_BIT) { - COPY_4FV( dst[0].Emission, src[0].Emission ); - } - if (bitmask & BACK_EMISSION_BIT) { - COPY_4FV( dst[1].Emission, src[1].Emission ); - } - if (bitmask & FRONT_AMBIENT_BIT) { - COPY_4FV( dst[0].Ambient, src[0].Ambient ); - } - if (bitmask & BACK_AMBIENT_BIT) { - COPY_4FV( dst[1].Ambient, src[1].Ambient ); - } - if (bitmask & FRONT_DIFFUSE_BIT) { - COPY_4FV( dst[0].Diffuse, src[0].Diffuse ); - } - if (bitmask & BACK_DIFFUSE_BIT) { - COPY_4FV( dst[1].Diffuse, src[1].Diffuse ); - } - if (bitmask & FRONT_SPECULAR_BIT) { - COPY_4FV( dst[0].Specular, src[0].Specular ); - } - if (bitmask & BACK_SPECULAR_BIT) { - COPY_4FV( dst[1].Specular, src[1].Specular ); - } - if (bitmask & FRONT_SHININESS_BIT) { - dst[0].Shininess = src[0].Shininess; - } - if (bitmask & BACK_SHININESS_BIT) { - dst[1].Shininess = src[1].Shininess; - } - if (bitmask & FRONT_INDEXES_BIT) { - dst[0].AmbientIndex = src[0].AmbientIndex; - dst[0].DiffuseIndex = src[0].DiffuseIndex; - dst[0].SpecularIndex = src[0].SpecularIndex; - } - if (bitmask & BACK_INDEXES_BIT) { - dst[1].AmbientIndex = src[1].AmbientIndex; - dst[1].DiffuseIndex = src[1].DiffuseIndex; - dst[1].SpecularIndex = src[1].SpecularIndex; - } + int i; + + for (i = 0 ; i < MAT_ATTRIB_MAX ; i++) + if (bitmask & (1<Attrib[i], src->Attrib[i] ); } -/* - * Check if the global material has to be updated with info that was - * associated with a vertex via glMaterial. - * This function is used when any material values get changed between - * glBegin/glEnd either by calling glMaterial() or by calling glColor() - * when GL_COLOR_MATERIAL is enabled. - * - * src[0] is front material, src[1] is back material - * - * Additionally keeps the precomputed lighting state uptodate. + +/* Update derived values following a change in ctx->Light.Material */ -void _mesa_update_material( GLcontext *ctx, - const struct gl_material src[2], - GLuint bitmask ) +void +_mesa_update_material( GLcontext *ctx, GLuint bitmask ) { struct gl_light *light, *list = &ctx->Light.EnabledList; + GLfloat (*mat)[4] = ctx->Light.Material.Attrib; - if (ctx->Light.ColorMaterialEnabled) - bitmask &= ~ctx->Light.ColorMaterialBitmask; - - if (MESA_VERBOSE&VERBOSE_IMMEDIATE) + if (MESA_VERBOSE&VERBOSE_IMMEDIATE) _mesa_debug(ctx, "_mesa_update_material, mask 0x%x\n", bitmask); if (!bitmask) return; - /* update material emission */ - if (bitmask & FRONT_EMISSION_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Emission, src[0].Emission ); - } - if (bitmask & BACK_EMISSION_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Emission, src[1].Emission ); - } - /* update material ambience */ - if (bitmask & FRONT_AMBIENT_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Ambient, src[0].Ambient ); + if (bitmask & MAT_BIT_FRONT_AMBIENT) { foreach (light, list) { - SCALE_3V( light->_MatAmbient[0], light->Ambient, src[0].Ambient); + SCALE_3V( light->_MatAmbient[0], light->Ambient, + mat[MAT_ATTRIB_FRONT_AMBIENT]); } } - if (bitmask & BACK_AMBIENT_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Ambient, src[1].Ambient ); + + if (bitmask & MAT_BIT_BACK_AMBIENT) { foreach (light, list) { - SCALE_3V( light->_MatAmbient[1], light->Ambient, src[1].Ambient); + SCALE_3V( light->_MatAmbient[1], light->Ambient, + mat[MAT_ATTRIB_BACK_AMBIENT]); } } /* update BaseColor = emission + scene's ambience * material's ambience */ - if (bitmask & (FRONT_EMISSION_BIT | FRONT_AMBIENT_BIT)) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_3V( ctx->Light._BaseColor[0], mat->Emission ); - ACC_SCALE_3V( ctx->Light._BaseColor[0], mat->Ambient, + if (bitmask & (MAT_BIT_FRONT_EMISSION | MAT_BIT_FRONT_AMBIENT)) { + COPY_3V( ctx->Light._BaseColor[0], mat[MAT_ATTRIB_FRONT_EMISSION] ); + ACC_SCALE_3V( ctx->Light._BaseColor[0], mat[MAT_ATTRIB_FRONT_AMBIENT], ctx->Light.Model.Ambient ); } - if (bitmask & (BACK_EMISSION_BIT | BACK_AMBIENT_BIT)) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_3V( ctx->Light._BaseColor[1], mat->Emission ); - ACC_SCALE_3V( ctx->Light._BaseColor[1], mat->Ambient, + + if (bitmask & (MAT_BIT_BACK_EMISSION | MAT_BIT_BACK_AMBIENT)) { + COPY_3V( ctx->Light._BaseColor[1], mat[MAT_ATTRIB_BACK_EMISSION] ); + ACC_SCALE_3V( ctx->Light._BaseColor[1], mat[MAT_ATTRIB_BACK_AMBIENT], ctx->Light.Model.Ambient ); } /* update material diffuse values */ - if (bitmask & FRONT_DIFFUSE_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Diffuse, src[0].Diffuse ); + if (bitmask & MAT_BIT_FRONT_DIFFUSE) { foreach (light, list) { - SCALE_3V( light->_MatDiffuse[0], light->Diffuse, mat->Diffuse ); + SCALE_3V( light->_MatDiffuse[0], light->Diffuse, + mat[MAT_ATTRIB_FRONT_DIFFUSE] ); } } - if (bitmask & BACK_DIFFUSE_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Diffuse, src[1].Diffuse ); + + if (bitmask & MAT_BIT_BACK_DIFFUSE) { foreach (light, list) { - SCALE_3V( light->_MatDiffuse[1], light->Diffuse, mat->Diffuse ); + SCALE_3V( light->_MatDiffuse[1], light->Diffuse, + mat[MAT_ATTRIB_BACK_DIFFUSE] ); } } /* update material specular values */ - if (bitmask & FRONT_SPECULAR_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Specular, src[0].Specular ); + if (bitmask & MAT_BIT_FRONT_SPECULAR) { foreach (light, list) { - SCALE_3V( light->_MatSpecular[0], light->Specular, mat->Specular); + SCALE_3V( light->_MatSpecular[0], light->Specular, + mat[MAT_ATTRIB_FRONT_SPECULAR]); } } - if (bitmask & BACK_SPECULAR_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Specular, src[1].Specular ); + + if (bitmask & MAT_BIT_BACK_SPECULAR) { foreach (light, list) { - SCALE_3V( light->_MatSpecular[1], light->Specular, mat->Specular); + SCALE_3V( light->_MatSpecular[1], light->Specular, + mat[MAT_ATTRIB_BACK_SPECULAR]); } } - if (bitmask & FRONT_SHININESS_BIT) { - ctx->Light.Material[0].Shininess = src[0].Shininess; + if (bitmask & MAT_BIT_FRONT_SHININESS) { _mesa_invalidate_shine_table( ctx, 0 ); } - if (bitmask & BACK_SHININESS_BIT) { - ctx->Light.Material[1].Shininess = src[1].Shininess; - _mesa_invalidate_shine_table( ctx, 1 ); - } - - if (bitmask & FRONT_INDEXES_BIT) { - ctx->Light.Material[0].AmbientIndex = src[0].AmbientIndex; - ctx->Light.Material[0].DiffuseIndex = src[0].DiffuseIndex; - ctx->Light.Material[0].SpecularIndex = src[0].SpecularIndex; - } - if (bitmask & BACK_INDEXES_BIT) { - ctx->Light.Material[1].AmbientIndex = src[1].AmbientIndex; - ctx->Light.Material[1].DiffuseIndex = src[1].DiffuseIndex; - ctx->Light.Material[1].SpecularIndex = src[1].SpecularIndex; - } - if (0) { - struct gl_material *mat = &ctx->Light.Material[0]; - _mesa_debug(ctx, "update_mat emission : %f %f %f\n", - mat->Emission[0], mat->Emission[1], mat->Emission[2]); - _mesa_debug(ctx, "update_mat specular : %f %f %f\n", - mat->Specular[0], mat->Specular[1], mat->Specular[2]); - _mesa_debug(ctx, "update_mat diffuse : %f %f %f\n", - mat->Diffuse[0], mat->Diffuse[1], mat->Diffuse[2]); - _mesa_debug(ctx, "update_mat ambient : %f %f %f\n", - mat->Ambient[0], mat->Ambient[1], mat->Ambient[2]); + if (bitmask & MAT_BIT_BACK_SHININESS) { + _mesa_invalidate_shine_table( ctx, 1 ); } } - - - - - /* * Update the current materials from the given rgba color * according to the bitmask in ColorMaterialBitmask, which is * set by glColorMaterial(). */ -void _mesa_update_color_material( GLcontext *ctx, - const GLfloat color[4] ) +void +_mesa_update_color_material( GLcontext *ctx, const GLfloat color[4] ) { - struct gl_light *light, *list = &ctx->Light.EnabledList; GLuint bitmask = ctx->Light.ColorMaterialBitmask; + struct gl_material *mat = &ctx->Light.Material; + int i; - if (MESA_VERBOSE&VERBOSE_IMMEDIATE) - _mesa_debug(ctx, "_mesa_update_color_material, mask 0x%x\n", bitmask); - - /* update emissive colors */ - if (bitmask & FRONT_EMISSION_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Emission, color ); - } - - if (bitmask & BACK_EMISSION_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Emission, color ); - } - - /* update light->_MatAmbient = light's ambient * material's ambient */ - if (bitmask & FRONT_AMBIENT_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - foreach (light, list) { - SCALE_3V( light->_MatAmbient[0], light->Ambient, color); - } - COPY_4FV( mat->Ambient, color ); - } - - if (bitmask & BACK_AMBIENT_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - foreach (light, list) { - SCALE_3V( light->_MatAmbient[1], light->Ambient, color); - } - COPY_4FV( mat->Ambient, color ); - } + for (i = 0 ; i < MAT_ATTRIB_MAX ; i++) + if (bitmask & (1<Attrib[i], color ); - /* update BaseColor = emission + scene's ambience * material's ambience */ - if (bitmask & (FRONT_EMISSION_BIT | FRONT_AMBIENT_BIT)) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_3V( ctx->Light._BaseColor[0], mat->Emission ); - ACC_SCALE_3V( ctx->Light._BaseColor[0], mat->Ambient, ctx->Light.Model.Ambient ); - } - - if (bitmask & (BACK_EMISSION_BIT | BACK_AMBIENT_BIT)) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_3V( ctx->Light._BaseColor[1], mat->Emission ); - ACC_SCALE_3V( ctx->Light._BaseColor[1], mat->Ambient, ctx->Light.Model.Ambient ); - } - - /* update light->_MatDiffuse = light's diffuse * material's diffuse */ - if (bitmask & FRONT_DIFFUSE_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Diffuse, color ); - foreach (light, list) { - SCALE_3V( light->_MatDiffuse[0], light->Diffuse, mat->Diffuse ); - } - } - - if (bitmask & BACK_DIFFUSE_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Diffuse, color ); - foreach (light, list) { - SCALE_3V( light->_MatDiffuse[1], light->Diffuse, mat->Diffuse ); - } - } - - /* update light->_MatSpecular = light's specular * material's specular */ - if (bitmask & FRONT_SPECULAR_BIT) { - struct gl_material *mat = &ctx->Light.Material[0]; - COPY_4FV( mat->Specular, color ); - foreach (light, list) { - ACC_SCALE_3V( light->_MatSpecular[0], light->Specular, mat->Specular); - } - } - - if (bitmask & BACK_SPECULAR_BIT) { - struct gl_material *mat = &ctx->Light.Material[1]; - COPY_4FV( mat->Specular, color ); - foreach (light, list) { - ACC_SCALE_3V( light->_MatSpecular[1], light->Specular, mat->Specular); - } - } - - if (0) { - struct gl_material *mat = &ctx->Light.Material[0]; - _mesa_debug(ctx, "update_color_mat emission : %f %f %f\n", - mat->Emission[0], mat->Emission[1], mat->Emission[2]); - _mesa_debug(ctx, "update_color_mat specular : %f %f %f\n", - mat->Specular[0], mat->Specular[1], mat->Specular[2]); - _mesa_debug(ctx, "update_color_mat diffuse : %f %f %f\n", - mat->Diffuse[0], mat->Diffuse[1], mat->Diffuse[2]); - _mesa_debug(ctx, "update_color_mat ambient : %f %f %f\n", - mat->Ambient[0], mat->Ambient[1], mat->Ambient[2]); - } + _mesa_update_material( ctx, bitmask ); } - - -void +void GLAPIENTRY _mesa_ColorMaterial( GLenum face, GLenum mode ) { GET_CURRENT_CONTEXT(ctx); GLuint bitmask; - GLuint legal = (FRONT_EMISSION_BIT | BACK_EMISSION_BIT | - FRONT_SPECULAR_BIT | BACK_SPECULAR_BIT | - FRONT_DIFFUSE_BIT | BACK_DIFFUSE_BIT | - FRONT_AMBIENT_BIT | BACK_AMBIENT_BIT); + GLuint legal = (MAT_BIT_FRONT_EMISSION | MAT_BIT_BACK_EMISSION | + MAT_BIT_FRONT_SPECULAR | MAT_BIT_BACK_SPECULAR | + MAT_BIT_FRONT_DIFFUSE | MAT_BIT_BACK_DIFFUSE | + MAT_BIT_FRONT_AMBIENT | MAT_BIT_BACK_AMBIENT); ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE&VERBOSE_API) @@ -872,16 +679,16 @@ _mesa_ColorMaterial( GLenum face, GLenum mode ) } - - - -void +void GLAPIENTRY _mesa_GetMaterialfv( GLenum face, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); GLuint f; + GLfloat (*mat)[4] = ctx->Light.Material.Attrib; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* update materials */ + FLUSH_CURRENT(ctx, 0); /* update ctx->Light.Material from vertex buffer */ + if (face==GL_FRONT) { f = 0; } @@ -892,26 +699,27 @@ _mesa_GetMaterialfv( GLenum face, GLenum pname, GLfloat *params ) _mesa_error( ctx, GL_INVALID_ENUM, "glGetMaterialfv(face)" ); return; } + switch (pname) { case GL_AMBIENT: - COPY_4FV( params, ctx->Light.Material[f].Ambient ); + COPY_4FV( params, mat[MAT_ATTRIB_AMBIENT(f)] ); break; case GL_DIFFUSE: - COPY_4FV( params, ctx->Light.Material[f].Diffuse ); + COPY_4FV( params, mat[MAT_ATTRIB_DIFFUSE(f)] ); break; case GL_SPECULAR: - COPY_4FV( params, ctx->Light.Material[f].Specular ); + COPY_4FV( params, mat[MAT_ATTRIB_SPECULAR(f)] ); break; case GL_EMISSION: - COPY_4FV( params, ctx->Light.Material[f].Emission ); + COPY_4FV( params, mat[MAT_ATTRIB_EMISSION(f)] ); break; case GL_SHININESS: - *params = ctx->Light.Material[f].Shininess; + *params = mat[MAT_ATTRIB_SHININESS(f)][0]; break; case GL_COLOR_INDEXES: - params[0] = ctx->Light.Material[f].AmbientIndex; - params[1] = ctx->Light.Material[f].DiffuseIndex; - params[2] = ctx->Light.Material[f].SpecularIndex; + params[0] = mat[MAT_ATTRIB_INDEXES(f)][0]; + params[1] = mat[MAT_ATTRIB_INDEXES(f)][1]; + params[2] = mat[MAT_ATTRIB_INDEXES(f)][2]; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetMaterialfv(pname)" ); @@ -919,14 +727,16 @@ _mesa_GetMaterialfv( GLenum face, GLenum pname, GLfloat *params ) } - -void +void GLAPIENTRY _mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); GLuint f; + GLfloat (*mat)[4] = ctx->Light.Material.Attrib; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* update materials */ + FLUSH_CURRENT(ctx, 0); /* update ctx->Light.Material from vertex buffer */ + if (face==GL_FRONT) { f = 0; } @@ -939,36 +749,36 @@ _mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params ) } switch (pname) { case GL_AMBIENT: - params[0] = FLOAT_TO_INT( ctx->Light.Material[f].Ambient[0] ); - params[1] = FLOAT_TO_INT( ctx->Light.Material[f].Ambient[1] ); - params[2] = FLOAT_TO_INT( ctx->Light.Material[f].Ambient[2] ); - params[3] = FLOAT_TO_INT( ctx->Light.Material[f].Ambient[3] ); + params[0] = FLOAT_TO_INT( mat[MAT_ATTRIB_AMBIENT(f)][0] ); + params[1] = FLOAT_TO_INT( mat[MAT_ATTRIB_AMBIENT(f)][1] ); + params[2] = FLOAT_TO_INT( mat[MAT_ATTRIB_AMBIENT(f)][2] ); + params[3] = FLOAT_TO_INT( mat[MAT_ATTRIB_AMBIENT(f)][3] ); break; case GL_DIFFUSE: - params[0] = FLOAT_TO_INT( ctx->Light.Material[f].Diffuse[0] ); - params[1] = FLOAT_TO_INT( ctx->Light.Material[f].Diffuse[1] ); - params[2] = FLOAT_TO_INT( ctx->Light.Material[f].Diffuse[2] ); - params[3] = FLOAT_TO_INT( ctx->Light.Material[f].Diffuse[3] ); + params[0] = FLOAT_TO_INT( mat[MAT_ATTRIB_DIFFUSE(f)][0] ); + params[1] = FLOAT_TO_INT( mat[MAT_ATTRIB_DIFFUSE(f)][1] ); + params[2] = FLOAT_TO_INT( mat[MAT_ATTRIB_DIFFUSE(f)][2] ); + params[3] = FLOAT_TO_INT( mat[MAT_ATTRIB_DIFFUSE(f)][3] ); break; case GL_SPECULAR: - params[0] = FLOAT_TO_INT( ctx->Light.Material[f].Specular[0] ); - params[1] = FLOAT_TO_INT( ctx->Light.Material[f].Specular[1] ); - params[2] = FLOAT_TO_INT( ctx->Light.Material[f].Specular[2] ); - params[3] = FLOAT_TO_INT( ctx->Light.Material[f].Specular[3] ); + params[0] = FLOAT_TO_INT( mat[MAT_ATTRIB_SPECULAR(f)][0] ); + params[1] = FLOAT_TO_INT( mat[MAT_ATTRIB_SPECULAR(f)][1] ); + params[2] = FLOAT_TO_INT( mat[MAT_ATTRIB_SPECULAR(f)][2] ); + params[3] = FLOAT_TO_INT( mat[MAT_ATTRIB_SPECULAR(f)][3] ); break; case GL_EMISSION: - params[0] = FLOAT_TO_INT( ctx->Light.Material[f].Emission[0] ); - params[1] = FLOAT_TO_INT( ctx->Light.Material[f].Emission[1] ); - params[2] = FLOAT_TO_INT( ctx->Light.Material[f].Emission[2] ); - params[3] = FLOAT_TO_INT( ctx->Light.Material[f].Emission[3] ); + params[0] = FLOAT_TO_INT( mat[MAT_ATTRIB_EMISSION(f)][0] ); + params[1] = FLOAT_TO_INT( mat[MAT_ATTRIB_EMISSION(f)][1] ); + params[2] = FLOAT_TO_INT( mat[MAT_ATTRIB_EMISSION(f)][2] ); + params[3] = FLOAT_TO_INT( mat[MAT_ATTRIB_EMISSION(f)][3] ); break; case GL_SHININESS: - *params = ROUNDF( ctx->Light.Material[f].Shininess ); + *params = IROUND( mat[MAT_ATTRIB_SHININESS(f)][0] ); break; case GL_COLOR_INDEXES: - params[0] = ROUNDF( ctx->Light.Material[f].AmbientIndex ); - params[1] = ROUNDF( ctx->Light.Material[f].DiffuseIndex ); - params[2] = ROUNDF( ctx->Light.Material[f].SpecularIndex ); + params[0] = IROUND( mat[MAT_ATTRIB_INDEXES(f)][0] ); + params[1] = IROUND( mat[MAT_ATTRIB_INDEXES(f)][1] ); + params[2] = IROUND( mat[MAT_ATTRIB_INDEXES(f)][2] ); break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetMaterialfv(pname)" ); @@ -977,7 +787,6 @@ _mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params ) - /**********************************************************************/ /***** Lighting computation *****/ /**********************************************************************/ @@ -1027,7 +836,9 @@ _mesa_invalidate_spot_exp_table( struct gl_light *l ) l->_SpotExpTable[0][0] = -1; } -static void validate_spot_exp_table( struct gl_light *l ) + +static void +validate_spot_exp_table( struct gl_light *l ) { GLint i; GLdouble exponent = l->SpotExponent; @@ -1055,24 +866,28 @@ static void validate_spot_exp_table( struct gl_light *l ) - /* 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 i ) +_mesa_invalidate_shine_table( GLcontext *ctx, GLuint side ) { - if (ctx->_ShineTable[i]) - ctx->_ShineTable[i]->refcount--; - ctx->_ShineTable[i] = 0; + ASSERT(side < 2); + if (ctx->_ShineTable[side]) + ctx->_ShineTable[side]->refcount--; + ctx->_ShineTable[side] = 0; } -static void validate_shine_table( GLcontext *ctx, GLuint i, GLfloat shininess ) + +static void +validate_shine_table( GLcontext *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; @@ -1108,25 +923,26 @@ static void validate_shine_table( GLcontext *ctx, GLuint i, GLfloat shininess ) s->shininess = shininess; } - if (ctx->_ShineTable[i]) - ctx->_ShineTable[i]->refcount--; + if (ctx->_ShineTable[side]) + ctx->_ShineTable[side]->refcount--; - ctx->_ShineTable[i] = s; + ctx->_ShineTable[side] = s; move_to_tail( list, s ); s->refcount++; } + void _mesa_validate_all_lighting_tables( GLcontext *ctx ) { - GLint i; + GLuint i; GLfloat shininess; - - shininess = ctx->Light.Material[0].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[1].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 ); @@ -1137,7 +953,6 @@ _mesa_validate_all_lighting_tables( GLcontext *ctx ) - /* * Examine current lighting parameters to determine if the optimized lighting * function can be used. @@ -1148,15 +963,12 @@ void _mesa_update_lighting( GLcontext *ctx ) { struct gl_light *light; - ctx->_NeedEyeCoords &= ~NEED_EYE_LIGHT; - ctx->_NeedNormals &= ~NEED_NORMALS_LIGHT; + ctx->Light._NeedEyeCoords = 0; ctx->Light._Flags = 0; if (!ctx->Light.Enabled) return; - ctx->_NeedNormals |= NEED_NORMALS_LIGHT; - foreach(light, &ctx->Light.EnabledList) { ctx->Light._Flags |= light->_Flags; } @@ -1166,9 +978,9 @@ _mesa_update_lighting( GLcontext *ctx ) ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR || ctx->Light.Model.LocalViewer); - if ((ctx->Light._Flags & LIGHT_POSITIONAL) || - ctx->Light.Model.LocalViewer) - ctx->_NeedEyeCoords |= NEED_EYE_LIGHT; + ctx->Light._NeedEyeCoords = ((ctx->Light._Flags & LIGHT_POSITIONAL) || + ctx->Light.Model.LocalViewer); + /* XXX: This test is overkill & needs to be fixed both for software and @@ -1176,7 +988,7 @@ _mesa_update_lighting( GLcontext *ctx ) * be tested to verify this. */ if (ctx->Light._NeedVertices) - ctx->_NeedEyeCoords |= NEED_EYE_LIGHT; + ctx->Light._NeedEyeCoords = GL_TRUE; /* Precompute some shading values. Although we reference @@ -1185,26 +997,22 @@ _mesa_update_lighting( GLcontext *ctx ) * are flushed, they will update the derived state at that time. */ if (ctx->Visual.rgbMode) { - GLuint sides = ctx->Light.Model.TwoSide ? 2 : 1; - GLuint side; - for (side=0; side < sides; side++) { - struct gl_material *mat = &ctx->Light.Material[side]; - - COPY_3V(ctx->Light._BaseColor[side], mat->Emission); - ACC_SCALE_3V(ctx->Light._BaseColor[side], - ctx->Light.Model.Ambient, - mat->Ambient); - } - - foreach (light, &ctx->Light.EnabledList) { - for (side=0; side< sides; side++) { - const struct gl_material *mat = &ctx->Light.Material[side]; - SCALE_3V( light->_MatDiffuse[side], light->Diffuse, mat->Diffuse ); - SCALE_3V( light->_MatAmbient[side], light->Ambient, mat->Ambient ); - SCALE_3V( light->_MatSpecular[side], light->Specular, - mat->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); } else { static const GLfloat ci[3] = { .30F, .59F, .11F }; @@ -1223,8 +1031,8 @@ _mesa_update_lighting( GLcontext *ctx ) * Update on (_NEW_MODELVIEW | _NEW_LIGHT) when lighting is enabled. * Also update on lighting space changes. */ -void -_mesa_compute_light_positions( GLcontext *ctx ) +static void +compute_light_positions( GLcontext *ctx ) { struct gl_light *light; static const GLfloat eye_z[3] = { 0, 0, 1 }; @@ -1292,3 +1100,217 @@ _mesa_compute_light_positions( GLcontext *ctx ) } } } + + + +static void +update_modelview_scale( GLcontext *ctx ) +{ + ctx->_ModelViewInvScale = 1.0F; + if (ctx->ModelviewMatrixStack.Top->flags & (MAT_FLAG_UNIFORM_SCALE | + MAT_FLAG_GENERAL_SCALE | + MAT_FLAG_GENERAL_3D | + MAT_FLAG_GENERAL) ) { + 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 (ctx->_NeedEyeCoords) + ctx->_ModelViewInvScale = (GLfloat) INV_SQRTF(f); + else + ctx->_ModelViewInvScale = (GLfloat) SQRTF(f); + } +} + + +/* Bring uptodate any state that relies on _NeedEyeCoords. + */ +void +_mesa_update_tnl_spaces( GLcontext *ctx, GLuint new_state ) +{ + const GLuint oldneedeyecoords = ctx->_NeedEyeCoords; + + (void) new_state; + ctx->_NeedEyeCoords = 0; + + if (ctx->_ForceEyeCoords || + (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) || + ctx->Point._Attenuated || + ctx->Light._NeedEyeCoords) + ctx->_NeedEyeCoords = 1; + + if (ctx->Light.Enabled && + !TEST_MAT_FLAGS( ctx->ModelviewMatrixStack.Top, + MAT_FLAGS_LENGTH_PRESERVING)) + ctx->_NeedEyeCoords = 1; + + + /* Check if the truth-value interpretations of the bitfields have + * changed: + */ + if (oldneedeyecoords != ctx->_NeedEyeCoords) { + /* Recalculate all state that depends on _NeedEyeCoords. + */ + update_modelview_scale(ctx); + compute_light_positions( ctx ); + + if (ctx->Driver.LightingSpaceChange) + ctx->Driver.LightingSpaceChange( ctx ); + } + else { + GLuint new_state = ctx->NewState; + + /* Recalculate that same state only if it has been invalidated + * by other statechanges. + */ + if (new_state & _NEW_MODELVIEW) + update_modelview_scale(ctx); + + if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW)) + compute_light_positions( ctx ); + } +} + + +/* Drivers may need this if the hardware tnl unit doesn't support the + * light-in-modelspace optimization. It's also useful for debugging. + */ +void +_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag ) +{ + ctx->_ForceEyeCoords = !flag; + ctx->NewState |= _NEW_POINT; /* one of the bits from + * _MESA_NEW_NEED_EYE_COORDS. + */ +} + + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +/** + * Initialize the n-th light data structure. + * + * \param l pointer to the gl_light structure to be initialized. + * \param n number of the light. + * \note The defaults for light 0 are different than the other lights. + */ +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 ); + ASSIGN_4V( l->Specular, 1.0, 1.0, 1.0, 1.0 ); + } + else { + ASSIGN_4V( l->Diffuse, 0.0, 0.0, 0.0, 1.0 ); + 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 ); + l->SpotExponent = 0.0; + _mesa_invalidate_spot_exp_table( l ); + l->SpotCutoff = 180.0; + l->_CosCutoff = 0.0; /* KW: -ve values not admitted */ + l->ConstantAttenuation = 1.0; + l->LinearAttenuation = 0.0; + l->QuadraticAttenuation = 0.0; + l->Enabled = GL_FALSE; +} + + +/** + * Initialize the light model data structure. + * + * \param lm pointer to the gl_lightmodel structure to be initialized. + */ +static void +init_lightmodel( struct gl_lightmodel *lm ) +{ + ASSIGN_4V( lm->Ambient, 0.2F, 0.2F, 0.2F, 1.0F ); + lm->LocalViewer = GL_FALSE; + lm->TwoSide = GL_FALSE; + lm->ColorControl = GL_SINGLE_COLOR; +} + + +/** + * Initialize the material data structure. + * + * \param m pointer to the gl_material structure to be initialized. + */ +static void +init_material( struct gl_material *m ) +{ + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_AMBIENT], 0.2F, 0.2F, 0.2F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_DIFFUSE], 0.8F, 0.8F, 0.8F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_SPECULAR], 0.0F, 0.0F, 0.0F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_EMISSION], 0.0F, 0.0F, 0.0F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_SHININESS], 0.0F, 0.0F, 0.0F, 0.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_INDEXES], 0.0F, 1.0F, 1.0F, 0.0F ); + + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_AMBIENT], 0.2F, 0.2F, 0.2F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_DIFFUSE], 0.8F, 0.8F, 0.8F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_SPECULAR], 0.0F, 0.0F, 0.0F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_EMISSION], 0.0F, 0.0F, 0.0F, 1.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_SHININESS], 0.0F, 0.0F, 0.0F, 0.0F ); + ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_INDEXES], 0.0F, 1.0F, 1.0F, 0.0F ); +} + + +void +_mesa_init_lighting( GLcontext *ctx ) +{ + GLuint i; + + /* Lighting group */ + 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 ); + ctx->Light.ShadeModel = GL_SMOOTH; + 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, + GL_FRONT_AND_BACK, + GL_AMBIENT_AND_DIFFUSE, ~0, 0 ); + + ctx->Light.ColorMaterialEnabled = GL_FALSE; + + /* 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 = 0; + ctx->_NeedEyeCoords = 0; + ctx->_ModelViewInvScale = 1.0; +} + + +void +_mesa_free_lighting_data( GLcontext *ctx ) +{ + struct gl_shine_tab *s, *tmps; + + /* Free lighting shininess exponentiation table */ + foreach_s( s, tmps, ctx->_ShineTabList ) { + FREE( s ); + } + FREE( ctx->_ShineTabList ); +}