aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_points.c
diff options
context:
space:
mode:
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.c111
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 */
-};