X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fpoints.c;h=4c8fc1f72e0dfa239185f30df6ebb131a1e4d13d;hb=8130375e775bd5ba6a47412b0ea8ec9f23dc5972;hp=a3e678811d5b7c6d658fe2eb502104e9983b0a53;hpb=1537b63fce36f87b3606d0e7cdca2d10bbdffd56;p=mesa.git diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c index a3e678811d5..4c8fc1f72e0 100644 --- a/src/mesa/main/points.c +++ b/src/mesa/main/points.c @@ -1,10 +1,13 @@ -/* $Id: points.c,v 1.32 2002/04/02 16:15:16 brianp Exp $ */ +/** + * \file points.c + * Point operations. + */ /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 7.1 * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2007 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"), @@ -25,21 +28,20 @@ */ -#ifdef PC_HEADER -#include "all.h" -#else #include "glheader.h" #include "context.h" #include "macros.h" -#include "mmath.h" #include "points.h" #include "texstate.h" #include "mtypes.h" -#endif - -void +/** + * Set current point size. + * \param size point diameter in pixels + * \sa glPointSize(). + */ +void GLAPIENTRY _mesa_PointSize( GLfloat size ) { GET_CURRENT_CONTEXT(ctx); @@ -55,105 +57,207 @@ _mesa_PointSize( GLfloat size ) FLUSH_VERTICES(ctx, _NEW_POINT); ctx->Point.Size = size; - ctx->Point._Size = CLAMP(size, - ctx->Const.MinPointSize, - ctx->Const.MaxPointSize); - - if (ctx->Point._Size == 1.0F) - ctx->_TriangleCaps &= ~DD_POINT_SIZE; - else - ctx->_TriangleCaps |= DD_POINT_SIZE; if (ctx->Driver.PointSize) - (*ctx->Driver.PointSize)(ctx, size); + ctx->Driver.PointSize(ctx, size); } +#if _HAVE_FULL_GL -/* - * Same for both GL_EXT_point_parameters and GL_ARB_point_parameters. - */ -void -_mesa_PointParameterfEXT( GLenum pname, GLfloat param) + +void GLAPIENTRY +_mesa_PointParameteri( GLenum pname, GLint param ) { - _mesa_PointParameterfvEXT(pname, ¶m); + const GLfloat value = (GLfloat) param; + _mesa_PointParameterfv(pname, &value); } +void GLAPIENTRY +_mesa_PointParameteriv( GLenum pname, const GLint *params ) +{ + GLfloat p[3]; + p[0] = (GLfloat) params[0]; + if (pname == GL_DISTANCE_ATTENUATION_EXT) { + p[1] = (GLfloat) params[1]; + p[2] = (GLfloat) params[2]; + } + _mesa_PointParameterfv(pname, p); +} -/* - * Same for both GL_EXT_point_parameters and GL_ARB_point_parameters. - */ -void -_mesa_PointParameterfvEXT( GLenum pname, const GLfloat *params) + +void GLAPIENTRY +_mesa_PointParameterf( GLenum pname, GLfloat param) +{ + _mesa_PointParameterfv(pname, ¶m); +} + + +void GLAPIENTRY +_mesa_PointParameterfv( GLenum pname, const GLfloat *params) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); - if (!ctx->Extensions.EXT_point_parameters) { - _mesa_error(ctx, GL_INVALID_ENUM, "glPointParameterf[v]{EXT,ARB}(pname)"); - return; - } - switch (pname) { case GL_DISTANCE_ATTENUATION_EXT: - { - const GLboolean tmp = ctx->Point._Attenuated; + if (ctx->Extensions.EXT_point_parameters) { if (TEST_EQ_3V(ctx->Point.Params, params)) return; - FLUSH_VERTICES(ctx, _NEW_POINT); COPY_3V(ctx->Point.Params, params); + ctx->Point._Attenuated = (ctx->Point.Params[0] != 1.0 || + ctx->Point.Params[1] != 0.0 || + ctx->Point.Params[2] != 0.0); - /* Update several derived values now. This likely to be - * more efficient than trying to catch this statechange in - * state.c. - */ - ctx->Point._Attenuated = (params[0] != 1.0 || - params[1] != 0.0 || - params[2] != 0.0); - - if (tmp != ctx->Point._Attenuated) { - ctx->_TriangleCaps ^= DD_POINT_ATTEN; - ctx->_NeedEyeCoords ^= NEED_EYE_POINT_ATTEN; - } + if (ctx->Point._Attenuated) + ctx->_TriangleCaps |= DD_POINT_ATTEN; + else + ctx->_TriangleCaps &= ~DD_POINT_ATTEN; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); + return; } break; case GL_POINT_SIZE_MIN_EXT: - if (*params < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPointParameterf[v]{EXT,ARB}(param)" ); + if (ctx->Extensions.EXT_point_parameters) { + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); + return; + } + if (ctx->Point.MinSize == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.MinSize = params[0]; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); return; } - if (ctx->Point.MinSize == *params) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.MinSize = *params; break; case GL_POINT_SIZE_MAX_EXT: - if (*params < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPointParameterf[v]{EXT,ARB}(param)" ); + if (ctx->Extensions.EXT_point_parameters) { + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); + return; + } + if (ctx->Point.MaxSize == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.MaxSize = params[0]; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); return; } - if (ctx->Point.MaxSize == *params) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.MaxSize = *params; break; case GL_POINT_FADE_THRESHOLD_SIZE_EXT: - if (*params < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPointParameterf[v]{EXT,ARB}(param)" ); + if (ctx->Extensions.EXT_point_parameters) { + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); + return; + } + if (ctx->Point.Threshold == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.Threshold = params[0]; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); + return; + } + break; + case GL_POINT_SPRITE_R_MODE_NV: + /* This is one area where ARB_point_sprite and NV_point_sprite + * differ. In ARB_point_sprite the POINT_SPRITE_R_MODE is + * always ZERO. NV_point_sprite adds the S and R modes. + */ + if (ctx->Extensions.NV_point_sprite) { + GLenum value = (GLenum) params[0]; + if (value != GL_ZERO && value != GL_S && value != GL_R) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)"); + return; + } + if (ctx->Point.SpriteRMode == value) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.SpriteRMode = value; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); + return; + } + break; + case GL_POINT_SPRITE_COORD_ORIGIN: + if (ctx->Extensions.ARB_point_sprite || ctx->Extensions.NV_point_sprite) { + GLenum value = (GLenum) params[0]; + if (value != GL_LOWER_LEFT && value != GL_UPPER_LEFT) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)"); + return; + } + if (ctx->Point.SpriteOrigin == value) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.SpriteOrigin = value; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)"); return; } - if (ctx->Point.Threshold == *params) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.Threshold = *params; break; default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPointParameterf[v]{EXT,ARB}(pname)" ); + _mesa_error( ctx, GL_INVALID_ENUM, + "glPointParameterf[v]{EXT,ARB}(pname)" ); return; } if (ctx->Driver.PointParameterfv) (*ctx->Driver.PointParameterfv)(ctx, pname, params); } +#endif + + + +/** + * Initialize the context point state. + * + * \param ctx GL context. + * + * Initializes __GLcontextRec::Point and point related constants in + * __GLcontextRec::Const. + */ +void +_mesa_init_point(GLcontext *ctx) +{ + GLuint i; + + ctx->Point.SmoothFlag = GL_FALSE; + ctx->Point.Size = 1.0; + ctx->Point.Params[0] = 1.0; + ctx->Point.Params[1] = 0.0; + ctx->Point.Params[2] = 0.0; + ctx->Point._Attenuated = GL_FALSE; + ctx->Point.MinSize = 0.0; + ctx->Point.MaxSize + = MAX2(ctx->Const.MaxPointSize, ctx->Const.MaxPointSizeAA); + ctx->Point.Threshold = 1.0; + ctx->Point.PointSprite = GL_FALSE; /* GL_ARB/NV_point_sprite */ + ctx->Point.SpriteRMode = GL_ZERO; /* GL_NV_point_sprite (only!) */ + ctx->Point.SpriteOrigin = GL_UPPER_LEFT; /* GL_ARB_point_sprite */ + for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { + ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_ARB/NV_point_sprite */ + } +}