xserver and mesa git update 28-12-2010

1 files changed, 268 insertions, 268 deletions

diff --git a/mesalib/src/mesa/swrast/s_lines.c b/mesalib/src/mesa/swrast/s_lines.c
index 7db5af4ae..aba403308 100644
--- a/mesalib/src/mesa/swrast/s_lines.c
+++ b/mesalib/src/mesa/swrast/s_lines.c
@@ -1,268 +1,268 @@
-/*
- * 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 "main/glheader.h"
-#include "main/context.h"
-#include "main/colormac.h"
-#include "main/macros.h"
-#include "s_aaline.h"
-#include "s_context.h"
-#include "s_feedback.h"
-#include "s_lines.h"
-#include "s_span.h"
-
-
-/*
- * Init the mask[] array to implement a line stipple.
- */
-static void
-compute_stipple_mask( GLcontext *ctx, GLuint len, GLubyte mask[] )
-{
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-   GLuint i;
-
-   for (i = 0; i < len; i++) {
-      GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf;
-      if ((1 << bit) & ctx->Line.StipplePattern) {
-         mask[i] = GL_TRUE;
-      }
-      else {
-         mask[i] = GL_FALSE;
-      }
-      swrast->StippleCounter++;
-   }
-}
-
-
-/*
- * To draw a wide line we can simply redraw the span N times, side by side.
- */
-static void
-draw_wide_line( GLcontext *ctx, SWspan *span, GLboolean xMajor )
-{
-   const GLint width = (GLint) CLAMP(ctx->Line.Width,
-                                     ctx->Const.MinLineWidth,
-                                     ctx->Const.MaxLineWidth);
-   GLint start;
-
-   ASSERT(span->end < MAX_WIDTH);
-
-   if (width & 1)
-      start = width / 2;
-   else
-      start = width / 2 - 1;
-
-   if (xMajor) {
-      GLint *y = span->array->y;
-      GLuint i;
-      GLint w;
-      for (w = 0; w < width; w++) {
-         if (w == 0) {
-            for (i = 0; i < span->end; i++)
-               y[i] -= start;
-         }
-         else {
-            for (i = 0; i < span->end; i++)
-               y[i]++;
-         }
-	 _swrast_write_rgba_span(ctx, span);
-      }
-   }
-   else {
-      GLint *x = span->array->x;
-      GLuint i;
-      GLint w;
-      for (w = 0; w < width; w++) {
-         if (w == 0) {
-            for (i = 0; i < span->end; i++)
-               x[i] -= start;
-         }
-         else {
-            for (i = 0; i < span->end; i++)
-               x[i]++;
-         }
-	 _swrast_write_rgba_span(ctx, span);
-      }
-   }
-}
-
-
-
-/**********************************************************************/
-/*****                    Rasterization                           *****/
-/**********************************************************************/
-
-/* Simple RGBA index line (no stipple, width=1, no Z, no fog, no tex)*/
-#define NAME simple_no_z_rgba_line
-#define INTERP_RGBA
-#define RENDER_SPAN(span) _swrast_write_rgba_span(ctx, &span);
-#include "s_linetemp.h"
-
-
-/* Z, fog, wide, stipple RGBA line */
-#define NAME rgba_line
-#define INTERP_RGBA
-#define INTERP_Z
-#define RENDER_SPAN(span)					\
-   if (ctx->Line.StippleFlag) {					\
-      span.arrayMask |= SPAN_MASK;				\
-      compute_stipple_mask(ctx, span.end, span.array->mask);	\
-   }								\
-   if (ctx->Line.Width > 1.0) {					\
-      draw_wide_line(ctx, &span, (GLboolean)(dx > dy));		\
-   }								\
-   else {							\
-      _swrast_write_rgba_span(ctx, &span);			\
-   }
-#include "s_linetemp.h"
-
-
-/* General-purpose line (any/all features). */
-#define NAME general_line
-#define INTERP_RGBA
-#define INTERP_Z
-#define INTERP_ATTRIBS
-#define RENDER_SPAN(span)					\
-   if (ctx->Line.StippleFlag) {					\
-      span.arrayMask |= SPAN_MASK;				\
-      compute_stipple_mask(ctx, span.end, span.array->mask);	\
-   }								\
-   if (ctx->Line.Width > 1.0) {					\
-      draw_wide_line(ctx, &span, (GLboolean)(dx > dy));		\
-   }								\
-   else {							\
-      _swrast_write_rgba_span(ctx, &span);			\
-   }
-#include "s_linetemp.h"
-
-
-
-void
-_swrast_add_spec_terms_line(GLcontext *ctx,
-                            const SWvertex *v0, const SWvertex *v1)
-{
-   SWvertex *ncv0 = (SWvertex *)v0;
-   SWvertex *ncv1 = (SWvertex *)v1;
-   GLfloat rSum, gSum, bSum;
-   GLchan cSave[2][4];
-
-   /* save original colors */
-   COPY_CHAN4(cSave[0], ncv0->color);
-   COPY_CHAN4(cSave[1], ncv1->color);
-   /* sum v0 */
-   rSum = CHAN_TO_FLOAT(ncv0->color[0]) + ncv0->attrib[FRAG_ATTRIB_COL1][0];
-   gSum = CHAN_TO_FLOAT(ncv0->color[1]) + ncv0->attrib[FRAG_ATTRIB_COL1][1];
-   bSum = CHAN_TO_FLOAT(ncv0->color[2]) + ncv0->attrib[FRAG_ATTRIB_COL1][2];
-   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[0], rSum);
-   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[1], gSum);
-   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[2], bSum);
-   /* sum v1 */
-   rSum = CHAN_TO_FLOAT(ncv1->color[0]) + ncv1->attrib[FRAG_ATTRIB_COL1][0];
-   gSum = CHAN_TO_FLOAT(ncv1->color[1]) + ncv1->attrib[FRAG_ATTRIB_COL1][1];
-   bSum = CHAN_TO_FLOAT(ncv1->color[2]) + ncv1->attrib[FRAG_ATTRIB_COL1][2];
-   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[0], rSum);
-   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[1], gSum);
-   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[2], bSum);
-   /* draw */
-   SWRAST_CONTEXT(ctx)->SpecLine( ctx, ncv0, ncv1 );
-   /* restore original colors */
-   COPY_CHAN4( ncv0->attrib[FRAG_ATTRIB_COL0], cSave[0] );
-   COPY_CHAN4( ncv1->attrib[FRAG_ATTRIB_COL0], cSave[1] );
-}
-
-
-
-#ifdef DEBUG
-
-/* record the current line function name */
-static const char *lineFuncName = NULL;
-
-#define USE(lineFunc)                   \
-do {                                    \
-    lineFuncName = #lineFunc;           \
-    /*printf("%s\n", lineFuncName);*/   \
-    swrast->Line = lineFunc;            \
-} while (0)
-
-#else
-
-#define USE(lineFunc)  swrast->Line = lineFunc
-
-#endif
-
-
-
-/**
- * Determine which line drawing function to use given the current
- * rendering context.
- *
- * Please update the summary flag _SWRAST_NEW_LINE if you add or remove
- * tests to this code.
- */
-void
-_swrast_choose_line( GLcontext *ctx )
-{
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-   GLboolean specular = (ctx->Fog.ColorSumEnabled ||
-                         (ctx->Light.Enabled &&
-                          ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR));
-
-   if (ctx->RenderMode == GL_RENDER) {
-      if (ctx->Line.SmoothFlag) {
-         /* antialiased lines */
-         _swrast_choose_aa_line_function(ctx);
-         ASSERT(swrast->Line);
-      }
-      else if (ctx->Texture._EnabledCoordUnits
-               || ctx->FragmentProgram._Current
-               || swrast->_FogEnabled
-               || specular) {
-         USE(general_line);
-      }
-      else if (ctx->Depth.Test
-               || ctx->Line.Width != 1.0
-               || ctx->Line.StippleFlag) {
-         /* no texture, but Z, fog, width>1, stipple, etc. */
-#if CHAN_BITS == 32
-         USE(general_line);
-#else
-         USE(rgba_line);
-#endif
-      }
-      else {
-         ASSERT(!ctx->Depth.Test);
-         ASSERT(ctx->Line.Width == 1.0);
-         /* simple lines */
-         USE(simple_no_z_rgba_line);
-      }
-   }
-   else if (ctx->RenderMode == GL_FEEDBACK) {
-      USE(_swrast_feedback_line);
-   }
-   else {
-      ASSERT(ctx->RenderMode == GL_SELECT);
-      USE(_swrast_select_line);
-   }
-}
+/*

+ * 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 "main/glheader.h"

+#include "main/context.h"

+#include "main/colormac.h"

+#include "main/macros.h"

+#include "s_aaline.h"

+#include "s_context.h"

+#include "s_feedback.h"

+#include "s_lines.h"

+#include "s_span.h"

+

+

+/*

+ * Init the mask[] array to implement a line stipple.

+ */

+static void

+compute_stipple_mask( struct gl_context *ctx, GLuint len, GLubyte mask[] )

+{

+   SWcontext *swrast = SWRAST_CONTEXT(ctx);

+   GLuint i;

+

+   for (i = 0; i < len; i++) {

+      GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf;

+      if ((1 << bit) & ctx->Line.StipplePattern) {

+         mask[i] = GL_TRUE;

+      }

+      else {

+         mask[i] = GL_FALSE;

+      }

+      swrast->StippleCounter++;

+   }

+}

+

+

+/*

+ * To draw a wide line we can simply redraw the span N times, side by side.

+ */

+static void

+draw_wide_line( struct gl_context *ctx, SWspan *span, GLboolean xMajor )

+{

+   const GLint width = (GLint) CLAMP(ctx->Line.Width,

+                                     ctx->Const.MinLineWidth,

+                                     ctx->Const.MaxLineWidth);

+   GLint start;

+

+   ASSERT(span->end < MAX_WIDTH);

+

+   if (width & 1)

+      start = width / 2;

+   else

+      start = width / 2 - 1;

+

+   if (xMajor) {

+      GLint *y = span->array->y;

+      GLuint i;

+      GLint w;

+      for (w = 0; w < width; w++) {

+         if (w == 0) {

+            for (i = 0; i < span->end; i++)

+               y[i] -= start;

+         }

+         else {

+            for (i = 0; i < span->end; i++)

+               y[i]++;

+         }

+	 _swrast_write_rgba_span(ctx, span);

+      }

+   }

+   else {

+      GLint *x = span->array->x;

+      GLuint i;

+      GLint w;

+      for (w = 0; w < width; w++) {

+         if (w == 0) {

+            for (i = 0; i < span->end; i++)

+               x[i] -= start;

+         }

+         else {

+            for (i = 0; i < span->end; i++)

+               x[i]++;

+         }

+	 _swrast_write_rgba_span(ctx, span);

+      }

+   }

+}

+

+

+

+/**********************************************************************/

+/*****                    Rasterization                           *****/

+/**********************************************************************/

+

+/* Simple RGBA index line (no stipple, width=1, no Z, no fog, no tex)*/

+#define NAME simple_no_z_rgba_line

+#define INTERP_RGBA

+#define RENDER_SPAN(span) _swrast_write_rgba_span(ctx, &span);

+#include "s_linetemp.h"

+

+

+/* Z, fog, wide, stipple RGBA line */

+#define NAME rgba_line

+#define INTERP_RGBA

+#define INTERP_Z

+#define RENDER_SPAN(span)					\

+   if (ctx->Line.StippleFlag) {					\

+      span.arrayMask |= SPAN_MASK;				\

+      compute_stipple_mask(ctx, span.end, span.array->mask);	\

+   }								\

+   if (ctx->Line.Width > 1.0) {					\

+      draw_wide_line(ctx, &span, (GLboolean)(dx > dy));		\

+   }								\

+   else {							\

+      _swrast_write_rgba_span(ctx, &span);			\

+   }

+#include "s_linetemp.h"

+

+

+/* General-purpose line (any/all features). */

+#define NAME general_line

+#define INTERP_RGBA

+#define INTERP_Z

+#define INTERP_ATTRIBS

+#define RENDER_SPAN(span)					\

+   if (ctx->Line.StippleFlag) {					\

+      span.arrayMask |= SPAN_MASK;				\

+      compute_stipple_mask(ctx, span.end, span.array->mask);	\

+   }								\

+   if (ctx->Line.Width > 1.0) {					\

+      draw_wide_line(ctx, &span, (GLboolean)(dx > dy));		\

+   }								\

+   else {							\

+      _swrast_write_rgba_span(ctx, &span);			\

+   }

+#include "s_linetemp.h"

+

+

+

+void

+_swrast_add_spec_terms_line(struct gl_context *ctx,

+                            const SWvertex *v0, const SWvertex *v1)

+{

+   SWvertex *ncv0 = (SWvertex *)v0;

+   SWvertex *ncv1 = (SWvertex *)v1;

+   GLfloat rSum, gSum, bSum;

+   GLchan cSave[2][4];

+

+   /* save original colors */

+   COPY_CHAN4(cSave[0], ncv0->color);

+   COPY_CHAN4(cSave[1], ncv1->color);

+   /* sum v0 */

+   rSum = CHAN_TO_FLOAT(ncv0->color[0]) + ncv0->attrib[FRAG_ATTRIB_COL1][0];

+   gSum = CHAN_TO_FLOAT(ncv0->color[1]) + ncv0->attrib[FRAG_ATTRIB_COL1][1];

+   bSum = CHAN_TO_FLOAT(ncv0->color[2]) + ncv0->attrib[FRAG_ATTRIB_COL1][2];

+   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[0], rSum);

+   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[1], gSum);

+   UNCLAMPED_FLOAT_TO_CHAN(ncv0->color[2], bSum);

+   /* sum v1 */

+   rSum = CHAN_TO_FLOAT(ncv1->color[0]) + ncv1->attrib[FRAG_ATTRIB_COL1][0];

+   gSum = CHAN_TO_FLOAT(ncv1->color[1]) + ncv1->attrib[FRAG_ATTRIB_COL1][1];

+   bSum = CHAN_TO_FLOAT(ncv1->color[2]) + ncv1->attrib[FRAG_ATTRIB_COL1][2];

+   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[0], rSum);

+   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[1], gSum);

+   UNCLAMPED_FLOAT_TO_CHAN(ncv1->color[2], bSum);

+   /* draw */

+   SWRAST_CONTEXT(ctx)->SpecLine( ctx, ncv0, ncv1 );

+   /* restore original colors */

+   COPY_CHAN4( ncv0->attrib[FRAG_ATTRIB_COL0], cSave[0] );

+   COPY_CHAN4( ncv1->attrib[FRAG_ATTRIB_COL0], cSave[1] );

+}

+

+

+

+#ifdef DEBUG

+

+/* record the current line function name */

+static const char *lineFuncName = NULL;

+

+#define USE(lineFunc)                   \

+do {                                    \

+    lineFuncName = #lineFunc;           \

+    /*printf("%s\n", lineFuncName);*/   \

+    swrast->Line = lineFunc;            \

+} while (0)

+

+#else

+

+#define USE(lineFunc)  swrast->Line = lineFunc

+

+#endif

+

+

+

+/**

+ * Determine which line drawing function to use given the current

+ * rendering context.

+ *

+ * Please update the summary flag _SWRAST_NEW_LINE if you add or remove

+ * tests to this code.

+ */

+void

+_swrast_choose_line( struct gl_context *ctx )

+{

+   SWcontext *swrast = SWRAST_CONTEXT(ctx);

+   GLboolean specular = (ctx->Fog.ColorSumEnabled ||

+                         (ctx->Light.Enabled &&

+                          ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR));

+

+   if (ctx->RenderMode == GL_RENDER) {

+      if (ctx->Line.SmoothFlag) {

+         /* antialiased lines */

+         _swrast_choose_aa_line_function(ctx);

+         ASSERT(swrast->Line);

+      }

+      else if (ctx->Texture._EnabledCoordUnits

+               || ctx->FragmentProgram._Current

+               || swrast->_FogEnabled

+               || specular) {

+         USE(general_line);

+      }

+      else if (ctx->Depth.Test

+               || ctx->Line.Width != 1.0

+               || ctx->Line.StippleFlag) {

+         /* no texture, but Z, fog, width>1, stipple, etc. */

+#if CHAN_BITS == 32

+         USE(general_line);

+#else

+         USE(rgba_line);

+#endif

+      }

+      else {

+         ASSERT(!ctx->Depth.Test);

+         ASSERT(ctx->Line.Width == 1.0);

+         /* simple lines */

+         USE(simple_no_z_rgba_line);

+      }

+   }

+   else if (ctx->RenderMode == GL_FEEDBACK) {

+      USE(_swrast_feedback_line);

+   }

+   else {

+      ASSERT(ctx->RenderMode == GL_SELECT);

+      USE(_swrast_select_line);

+   }

+}