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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-02-17 16:11:01 +0100 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-15 14:16:37 +0200 |
commit | 209657f69055b17b00c3db3f99c7f411a6e8d176 (patch) | |
tree | 8d6ae61dfda54305a712bded9caff9ee608abf4e /nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c | |
parent | 459021c165c7023ee75f524060ca270985b547c1 (diff) | |
download | nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.gz nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.bz2 nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.zip |
nx-X11/extras/Mesa: Drop bundled Mesa, place a symlink to imported Git subtree of Mesa_6.4.1 instead.
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c b/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c deleted file mode 100644 index 47c37930d..000000000 --- a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 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. - * - * Authors: - * Brian Paul - */ - -#include "mtypes.h" -#include "imports.h" -#include "t_context.h" -#include "t_pipeline.h" - - -struct point_stage_data { - GLvector4f PointSize; -}; - -#define POINT_STAGE_DATA(stage) ((struct point_stage_data *)stage->privatePtr) - - -/** - * Compute point size for each vertex from the vertex eye-space Z - * coordinate and the point size attenuation factors. - * Only done when point size attenuation is enabled and vertex program is - * disabled. - */ -static GLboolean -run_point_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) -{ - if (ctx->Point._Attenuated && !ctx->VertexProgram._Enabled) { - struct point_stage_data *store = POINT_STAGE_DATA(stage); - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - const GLfloat (*eye)[4] = (const GLfloat (*)[4]) VB->EyePtr->data; - const GLfloat p0 = ctx->Point.Params[0]; - const GLfloat p1 = ctx->Point.Params[1]; - const GLfloat p2 = ctx->Point.Params[2]; - const GLfloat pointSize = ctx->Point.Size; - GLfloat (*size)[4] = store->PointSize.data; - GLuint i; - - for (i = 0; i < VB->Count; i++) { - const GLfloat dist = FABSF(eye[i][2]); - const GLfloat q = p0 + dist * (p1 + dist * p2); - const GLfloat atten = (q != 0.0) ? SQRTF(1.0 / q) : 1.0; - size[i][0] = pointSize * atten; /* clamping done in rasterization */ - } - - VB->PointSizePtr = &store->PointSize; - VB->AttribPtr[_TNL_ATTRIB_POINTSIZE] = &store->PointSize; - } - - return GL_TRUE; -} - - -static GLboolean -alloc_point_data(GLcontext *ctx, struct tnl_pipeline_stage *stage) -{ - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - struct point_stage_data *store; - stage->privatePtr = _mesa_malloc(sizeof(*store)); - store = POINT_STAGE_DATA(stage); - if (!store) - return GL_FALSE; - - _mesa_vector4f_alloc( &store->PointSize, 0, VB->Size, 32 ); - return GL_TRUE; -} - - -static void -free_point_data(struct tnl_pipeline_stage *stage) -{ - struct point_stage_data *store = POINT_STAGE_DATA(stage); - if (store) { - _mesa_vector4f_free( &store->PointSize ); - _mesa_free( store ); - stage->privatePtr = NULL; - } -} - - -const struct tnl_pipeline_stage _tnl_point_attenuation_stage = -{ - "point size attenuation", /* name */ - NULL, /* stage private data */ - alloc_point_data, /* alloc data */ - free_point_data, /* destructor */ - NULL, - run_point_stage /* run */ -}; |