diff options
Diffstat (limited to 'mesalib/src/mesa/main/points.c')
-rw-r--r-- | mesalib/src/mesa/main/points.c | 544 |
1 files changed, 272 insertions, 272 deletions
diff --git a/mesalib/src/mesa/main/points.c b/mesalib/src/mesa/main/points.c index 78d40f61c..87bfae27e 100644 --- a/mesalib/src/mesa/main/points.c +++ b/mesalib/src/mesa/main/points.c @@ -1,272 +1,272 @@ -/**
- * \file points.c
- * Point operations.
- */
-
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-#include "glheader.h"
-#include "context.h"
-#include "macros.h"
-#include "points.h"
-#include "mtypes.h"
-
-
-/**
- * Set current point size.
- * \param size point diameter in pixels
- * \sa glPointSize().
- */
-void GLAPIENTRY
-_mesa_PointSize( GLfloat size )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (size <= 0.0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPointSize" );
- return;
- }
-
- if (ctx->Point.Size == size)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_POINT);
- ctx->Point.Size = size;
-
- if (ctx->Driver.PointSize)
- ctx->Driver.PointSize(ctx, size);
-}
-
-
-#if _HAVE_FULL_GL
-
-
-void GLAPIENTRY
-_mesa_PointParameteri( GLenum pname, GLint param )
-{
- GLfloat p[3];
- p[0] = (GLfloat) param;
- p[1] = p[2] = 0.0F;
- _mesa_PointParameterfv(pname, p);
-}
-
-
-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);
-}
-
-
-void GLAPIENTRY
-_mesa_PointParameterf( GLenum pname, GLfloat param)
-{
- GLfloat p[3];
- p[0] = param;
- p[1] = p[2] = 0.0F;
- _mesa_PointParameterfv(pname, p);
-}
-
-
-void GLAPIENTRY
-_mesa_PointParameterfv( GLenum pname, const GLfloat *params)
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- switch (pname) {
- case GL_DISTANCE_ATTENUATION_EXT:
- 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);
-
- 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 (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;
- }
- break;
- case GL_POINT_SIZE_MAX_EXT:
- 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;
- }
- break;
- case GL_POINT_FADE_THRESHOLD_SIZE_EXT:
- 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:
- /* This is not completely correct. GL_POINT_SPRITE_COORD_ORIGIN was
- * added to point sprites when the extension was merged into OpenGL
- * 2.0. It is expected that an implementation supporting OpenGL 1.4
- * and GL_ARB_point_sprite will generate an error here.
- */
- if (ctx->Extensions.ARB_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;
- }
- break;
- default:
- _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 __struct gl_contextRec::Point and point related constants in
- * __struct gl_contextRec::Const.
- */
-void
-_mesa_init_point(struct gl_context *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 < Elements(ctx->Point.CoordReplace); i++) {
- ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_ARB/NV_point_sprite */
- }
-}
+/** + * \file points.c + * Point operations. + */ + +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * 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"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "glheader.h" +#include "context.h" +#include "macros.h" +#include "points.h" +#include "mtypes.h" + + +/** + * Set current point size. + * \param size point diameter in pixels + * \sa glPointSize(). + */ +void GLAPIENTRY +_mesa_PointSize( GLfloat size ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (size <= 0.0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPointSize" ); + return; + } + + if (ctx->Point.Size == size) + return; + + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.Size = size; + + if (ctx->Driver.PointSize) + ctx->Driver.PointSize(ctx, size); +} + + +#if _HAVE_FULL_GL + + +void GLAPIENTRY +_mesa_PointParameteri( GLenum pname, GLint param ) +{ + GLfloat p[3]; + p[0] = (GLfloat) param; + p[1] = p[2] = 0.0F; + _mesa_PointParameterfv(pname, p); +} + + +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); +} + + +void GLAPIENTRY +_mesa_PointParameterf( GLenum pname, GLfloat param) +{ + GLfloat p[3]; + p[0] = param; + p[1] = p[2] = 0.0F; + _mesa_PointParameterfv(pname, p); +} + + +void GLAPIENTRY +_mesa_PointParameterfv( GLenum pname, const GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + switch (pname) { + case GL_DISTANCE_ATTENUATION_EXT: + 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); + + 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 (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; + } + break; + case GL_POINT_SIZE_MAX_EXT: + 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; + } + break; + case GL_POINT_FADE_THRESHOLD_SIZE_EXT: + 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: + /* This is not completely correct. GL_POINT_SPRITE_COORD_ORIGIN was + * added to point sprites when the extension was merged into OpenGL + * 2.0. It is expected that an implementation supporting OpenGL 1.4 + * and GL_ARB_point_sprite will generate an error here. + */ + if (ctx->Extensions.ARB_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; + } + break; + default: + _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 __struct gl_contextRec::Point and point related constants in + * __struct gl_contextRec::Const. + */ +void +_mesa_init_point(struct gl_context *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 < Elements(ctx->Point.CoordReplace); i++) { + ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_ARB/NV_point_sprite */ + } +} |