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author | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
commit | 807c6931fe683fd844ceec1b023232181e6aae03 (patch) | |
tree | 1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/mesa/main/points.c | |
parent | 973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff) | |
download | vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.gz vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.bz2 vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.zip |
xserver and mesa git update 28-12-2010
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 eab9d13d6..78d40f61c 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 __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 < 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 */
+ }
+}
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