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authormarha <marha@users.sourceforge.net>2010-12-28 16:10:20 +0000
committermarha <marha@users.sourceforge.net>2010-12-28 16:10:20 +0000
commit807c6931fe683fd844ceec1b023232181e6aae03 (patch)
tree1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/mesa/tnl/t_vb_points.c
parent973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff)
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xserver and mesa git update 28-12-2010
Diffstat (limited to 'mesalib/src/mesa/tnl/t_vb_points.c')
-rw-r--r--mesalib/src/mesa/tnl/t_vb_points.c228
1 files changed, 114 insertions, 114 deletions
diff --git a/mesalib/src/mesa/tnl/t_vb_points.c b/mesalib/src/mesa/tnl/t_vb_points.c
index 20634c80d..1bf961a6d 100644
--- a/mesalib/src/mesa/tnl/t_vb_points.c
+++ b/mesalib/src/mesa/tnl/t_vb_points.c
@@ -1,114 +1,114 @@
-/*
- * Mesa 3-D graphics library
- * Version: 7.0
- *
- * 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.
- *
- * Authors:
- * Brian Paul
- */
-
-#include "main/glheader.h"
-#include "main/mtypes.h"
-#include "main/dd.h"
-#include "main/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._Current) {
- struct point_stage_data *store = POINT_STAGE_DATA(stage);
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- const GLfloat *eyeCoord = (GLfloat *) VB->EyePtr->data + 2;
- const GLint eyeCoordStride = VB->EyePtr->stride / sizeof(GLfloat);
- 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(*eyeCoord);
- const GLfloat q = p0 + dist * (p1 + dist * p2);
- const GLfloat atten = (q != 0.0F) ? SQRTF(1.0F / q) : 1.0F;
- size[i][0] = pointSize * atten; /* clamping done in rasterization */
- eyeCoord += eyeCoordStride;
- }
-
- 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 = 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 );
- 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 */
-};
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.0
+ *
+ * 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.
+ *
+ * Authors:
+ * Brian Paul
+ */
+
+#include "main/glheader.h"
+#include "main/mtypes.h"
+#include "main/dd.h"
+#include "main/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(struct gl_context *ctx, struct tnl_pipeline_stage *stage)
+{
+ if (ctx->Point._Attenuated && !ctx->VertexProgram._Current) {
+ struct point_stage_data *store = POINT_STAGE_DATA(stage);
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ const GLfloat *eyeCoord = (GLfloat *) VB->EyePtr->data + 2;
+ const GLint eyeCoordStride = VB->EyePtr->stride / sizeof(GLfloat);
+ 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(*eyeCoord);
+ const GLfloat q = p0 + dist * (p1 + dist * p2);
+ const GLfloat atten = (q != 0.0F) ? SQRTF(1.0F / q) : 1.0F;
+ size[i][0] = pointSize * atten; /* clamping done in rasterization */
+ eyeCoord += eyeCoordStride;
+ }
+
+ VB->AttribPtr[_TNL_ATTRIB_POINTSIZE] = &store->PointSize;
+ }
+
+ return GL_TRUE;
+}
+
+
+static GLboolean
+alloc_point_data(struct gl_context *ctx, struct tnl_pipeline_stage *stage)
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ struct point_stage_data *store;
+ stage->privatePtr = 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 );
+ 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 */
+};