tnl: add some comments in render_line_loop code

[mesa.git] / src / mesa / tnl / t_vb_points.c

diff --git a/src/mesa/tnl/t_vb_points.c b/src/mesa/tnl/t_vb_points.c
index ab8ea60cf241cd0a6d727fb01c5904cd4b22fa5f..0f8578daa185abcd5ee34352e4a604f1203198da 100644 (file)
--- a/src/mesa/tnl/t_vb_points.c
+++ b/src/mesa/tnl/t_vb_points.c
@@ -1,6 +1,5 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.0
  *
  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  *
@@ -17,14 +16,16 @@
  * 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 "c99_math.h"
 #include "main/glheader.h"
 #include "main/mtypes.h"
 #include "main/dd.h"
@@ -47,7 +48,7 @@ struct point_stage_data {
  * disabled.
  */
 static GLboolean
-run_point_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage)
+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);
@@ -62,9 +63,9 @@ run_point_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage)
       GLuint i;
 
       for (i = 0; i < VB->Count; i++) {
-         const GLfloat dist = FABSF(*eyeCoord);
+         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;
+         const GLfloat atten = (q != 0.0F) ? (1.0f / sqrtf(q)) : 1.0F;
          size[i][0] = pointSize * atten; /* clamping done in rasterization */
          eyeCoord += eyeCoordStride;
       }
@@ -77,11 +78,11 @@ run_point_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage)
 
 
 static GLboolean
-alloc_point_data(GLcontext *ctx, struct tnl_pipeline_stage *stage)
+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 = _mesa_malloc(sizeof(*store));
+   stage->privatePtr = malloc(sizeof(*store));
    store = POINT_STAGE_DATA(stage);
    if (!store)
       return GL_FALSE;
@@ -97,7 +98,7 @@ 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 );
+      free( store );
       stage->privatePtr = NULL;
    }
 }