1 files changed, 230 insertions, 230 deletions
diff --git a/mesalib/src/mesa/swrast/s_clear.c b/mesalib/src/mesa/swrast/s_clear.c
index efe500ae2..fac092f1e 100644
--- a/mesalib/src/mesa/swrast/s_clear.c
+++ b/mesalib/src/mesa/swrast/s_clear.c
@@ -1,230 +1,230 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2008  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/colormac.h"
-#include "main/condrender.h"
-#include "main/macros.h"
-#include "main/imports.h"
-#include "main/mtypes.h"
-
-#include "s_accum.h"
-#include "s_context.h"
-#include "s_depth.h"
-#include "s_masking.h"
-#include "s_stencil.h"
-
-
-/**
- * Clear the color buffer when glColorMask is in effect.
- */
-static void
-clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb,
-                               GLuint buf)
-{
-   const GLint x = ctx->DrawBuffer->_Xmin;
-   const GLint y = ctx->DrawBuffer->_Ymin;
-   const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
-   const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
-   SWspan span;
-   GLint i;
-
-   ASSERT(rb->PutRow);
-
-   /* Initialize color span with clear color */
-   /* XXX optimize for clearcolor == black/zero (bzero) */
-   INIT_SPAN(span, GL_BITMAP);
-   span.end = width;
-   span.arrayMask = SPAN_RGBA;
-   span.array->ChanType = rb->DataType;
-   if (span.array->ChanType == GL_UNSIGNED_BYTE) {
-      GLubyte clearColor[4];
-      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[RCOMP], ctx->Color.ClearColor[0]);
-      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[GCOMP], ctx->Color.ClearColor[1]);
-      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[BCOMP], ctx->Color.ClearColor[2]);
-      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[ACOMP], ctx->Color.ClearColor[3]);
-      for (i = 0; i < width; i++) {
-         COPY_4UBV(span.array->rgba[i], clearColor);
-      }
-   }
-   else if (span.array->ChanType == GL_UNSIGNED_SHORT) {
-      GLushort clearColor[4];
-      UNCLAMPED_FLOAT_TO_USHORT(clearColor[RCOMP], ctx->Color.ClearColor[0]);
-      UNCLAMPED_FLOAT_TO_USHORT(clearColor[GCOMP], ctx->Color.ClearColor[1]);
-      UNCLAMPED_FLOAT_TO_USHORT(clearColor[BCOMP], ctx->Color.ClearColor[2]);
-      UNCLAMPED_FLOAT_TO_USHORT(clearColor[ACOMP], ctx->Color.ClearColor[3]);
-      for (i = 0; i < width; i++) {
-         COPY_4V_CAST(span.array->rgba[i], clearColor, GLchan);
-      }
-   }
-   else {
-      ASSERT(span.array->ChanType == GL_FLOAT);
-      for (i = 0; i < width; i++) {
-         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][0], ctx->Color.ClearColor[0]);
-         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][1], ctx->Color.ClearColor[1]);
-         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][2], ctx->Color.ClearColor[2]);
-         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][3], ctx->Color.ClearColor[3]);
-      }
-   }
-
-   /* Note that masking will change the color values, but only the
-    * channels for which the write mask is GL_FALSE.  The channels
-    * which which are write-enabled won't get modified.
-    */
-   for (i = 0; i < height; i++) {
-      span.x = x;
-      span.y = y + i;
-      _swrast_mask_rgba_span(ctx, rb, &span, buf);
-      /* write masked row */
-      rb->PutRow(ctx, rb, width, x, y + i, span.array->rgba, NULL);
-   }
-}
-
-
-/**
- * Clear an rgba color buffer without channel masking.
- */
-static void
-clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint buf)
-{
-   const GLint x = ctx->DrawBuffer->_Xmin;
-   const GLint y = ctx->DrawBuffer->_Ymin;
-   const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
-   const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
-   GLubyte clear8[4];
-   GLushort clear16[4];
-   GLvoid *clearVal;
-   GLint i;
-
-   ASSERT(ctx->Color.ColorMask[buf][0] &&
-          ctx->Color.ColorMask[buf][1] &&
-          ctx->Color.ColorMask[buf][2] &&
-          ctx->Color.ColorMask[buf][3]);             
-
-   ASSERT(rb->PutMonoRow);
-
-   switch (rb->DataType) {
-      case GL_UNSIGNED_BYTE:
-         UNCLAMPED_FLOAT_TO_UBYTE(clear8[0], ctx->Color.ClearColor[0]);
-         UNCLAMPED_FLOAT_TO_UBYTE(clear8[1], ctx->Color.ClearColor[1]);
-         UNCLAMPED_FLOAT_TO_UBYTE(clear8[2], ctx->Color.ClearColor[2]);
-         UNCLAMPED_FLOAT_TO_UBYTE(clear8[3], ctx->Color.ClearColor[3]);
-         clearVal = clear8;
-         break;
-      case GL_UNSIGNED_SHORT:
-         UNCLAMPED_FLOAT_TO_USHORT(clear16[0], ctx->Color.ClearColor[0]);
-         UNCLAMPED_FLOAT_TO_USHORT(clear16[1], ctx->Color.ClearColor[1]);
-         UNCLAMPED_FLOAT_TO_USHORT(clear16[2], ctx->Color.ClearColor[2]);
-         UNCLAMPED_FLOAT_TO_USHORT(clear16[3], ctx->Color.ClearColor[3]);
-         clearVal = clear16;
-         break;
-      case GL_FLOAT:
-         clearVal = ctx->Color.ClearColor;
-         break;
-      default:
-         _mesa_problem(ctx, "Bad rb DataType in clear_color_buffer");
-         return;
-   }
-
-   for (i = 0; i < height; i++) {
-      rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
-   }
-}
-
-
-/**
- * Clear the front/back/left/right/aux color buffers.
- * This function is usually only called if the device driver can't
- * clear its own color buffers for some reason (such as with masking).
- */
-static void
-clear_color_buffers(GLcontext *ctx)
-{
-   GLuint buf;
-
-   for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {
-      struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[buf];
-      if (ctx->Color.ColorMask[buf][0] == 0 ||
-          ctx->Color.ColorMask[buf][1] == 0 ||
-          ctx->Color.ColorMask[buf][2] == 0 ||
-          ctx->Color.ColorMask[buf][3] == 0) {
-         clear_rgba_buffer_with_masking(ctx, rb, buf);
-      }
-      else {
-         clear_rgba_buffer(ctx, rb, buf);
-      }
-   }
-}
-
-
-/**
- * Called via the device driver's ctx->Driver.Clear() function if the
- * device driver can't clear one or more of the buffers itself.
- * \param buffers  bitfield of BUFFER_BIT_* values indicating which
- *                 renderbuffers are to be cleared.
- * \param all  if GL_TRUE, clear whole buffer, else clear specified region.
- */
-void
-_swrast_Clear(GLcontext *ctx, GLbitfield buffers)
-{
-#ifdef DEBUG_FOO
-   {
-      const GLbitfield legalBits =
-         BUFFER_BIT_FRONT_LEFT |
-	 BUFFER_BIT_FRONT_RIGHT |
-	 BUFFER_BIT_BACK_LEFT |
-	 BUFFER_BIT_BACK_RIGHT |
-	 BUFFER_BIT_DEPTH |
-	 BUFFER_BIT_STENCIL |
-	 BUFFER_BIT_ACCUM |
-         BUFFER_BIT_AUX0;
-      assert((buffers & (~legalBits)) == 0);
-   }
-#endif
-
-   if (!_mesa_check_conditional_render(ctx))
-      return; /* don't clear */
-
-   swrast_render_start(ctx);
-
-   /* do software clearing here */
-   if (buffers) {
-      if ((buffers & BUFFER_BITS_COLOR)
-          && (ctx->DrawBuffer->_NumColorDrawBuffers > 0)) {
-         clear_color_buffers(ctx);
-      }
-      if (buffers & BUFFER_BIT_DEPTH) {
-         _swrast_clear_depth_buffer(ctx, ctx->DrawBuffer->_DepthBuffer);
-      }
-      if (buffers & BUFFER_BIT_ACCUM) {
-         _swrast_clear_accum_buffer(ctx,
-                       ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer);
-      }
-      if (buffers & BUFFER_BIT_STENCIL) {
-         _swrast_clear_stencil_buffer(ctx, ctx->DrawBuffer->_StencilBuffer);
-      }
-   }
-
-   swrast_render_finish(ctx);
-}
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  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/colormac.h"
+#include "main/condrender.h"
+#include "main/macros.h"
+#include "main/imports.h"
+#include "main/mtypes.h"
+
+#include "s_accum.h"
+#include "s_context.h"
+#include "s_depth.h"
+#include "s_masking.h"
+#include "s_stencil.h"
+
+
+/**
+ * Clear the color buffer when glColorMask is in effect.
+ */
+static void
+clear_rgba_buffer_with_masking(struct gl_context *ctx, struct gl_renderbuffer *rb,
+                               GLuint buf)
+{
+   const GLint x = ctx->DrawBuffer->_Xmin;
+   const GLint y = ctx->DrawBuffer->_Ymin;
+   const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
+   const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+   SWspan span;
+   GLint i;
+
+   ASSERT(rb->PutRow);
+
+   /* Initialize color span with clear color */
+   /* XXX optimize for clearcolor == black/zero (bzero) */
+   INIT_SPAN(span, GL_BITMAP);
+   span.end = width;
+   span.arrayMask = SPAN_RGBA;
+   span.array->ChanType = rb->DataType;
+   if (span.array->ChanType == GL_UNSIGNED_BYTE) {
+      GLubyte clearColor[4];
+      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[RCOMP], ctx->Color.ClearColor[0]);
+      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[GCOMP], ctx->Color.ClearColor[1]);
+      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[BCOMP], ctx->Color.ClearColor[2]);
+      UNCLAMPED_FLOAT_TO_UBYTE(clearColor[ACOMP], ctx->Color.ClearColor[3]);
+      for (i = 0; i < width; i++) {
+         COPY_4UBV(span.array->rgba[i], clearColor);
+      }
+   }
+   else if (span.array->ChanType == GL_UNSIGNED_SHORT) {
+      GLushort clearColor[4];
+      UNCLAMPED_FLOAT_TO_USHORT(clearColor[RCOMP], ctx->Color.ClearColor[0]);
+      UNCLAMPED_FLOAT_TO_USHORT(clearColor[GCOMP], ctx->Color.ClearColor[1]);
+      UNCLAMPED_FLOAT_TO_USHORT(clearColor[BCOMP], ctx->Color.ClearColor[2]);
+      UNCLAMPED_FLOAT_TO_USHORT(clearColor[ACOMP], ctx->Color.ClearColor[3]);
+      for (i = 0; i < width; i++) {
+         COPY_4V_CAST(span.array->rgba[i], clearColor, GLchan);
+      }
+   }
+   else {
+      ASSERT(span.array->ChanType == GL_FLOAT);
+      for (i = 0; i < width; i++) {
+         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][0], ctx->Color.ClearColor[0]);
+         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][1], ctx->Color.ClearColor[1]);
+         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][2], ctx->Color.ClearColor[2]);
+         CLAMPED_FLOAT_TO_CHAN(span.array->rgba[i][3], ctx->Color.ClearColor[3]);
+      }
+   }
+
+   /* Note that masking will change the color values, but only the
+    * channels for which the write mask is GL_FALSE.  The channels
+    * which which are write-enabled won't get modified.
+    */
+   for (i = 0; i < height; i++) {
+      span.x = x;
+      span.y = y + i;
+      _swrast_mask_rgba_span(ctx, rb, &span, buf);
+      /* write masked row */
+      rb->PutRow(ctx, rb, width, x, y + i, span.array->rgba, NULL);
+   }
+}
+
+
+/**
+ * Clear an rgba color buffer without channel masking.
+ */
+static void
+clear_rgba_buffer(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint buf)
+{
+   const GLint x = ctx->DrawBuffer->_Xmin;
+   const GLint y = ctx->DrawBuffer->_Ymin;
+   const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
+   const GLint width  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+   GLubyte clear8[4];
+   GLushort clear16[4];
+   GLvoid *clearVal;
+   GLint i;
+
+   ASSERT(ctx->Color.ColorMask[buf][0] &&
+          ctx->Color.ColorMask[buf][1] &&
+          ctx->Color.ColorMask[buf][2] &&
+          ctx->Color.ColorMask[buf][3]);             
+
+   ASSERT(rb->PutMonoRow);
+
+   switch (rb->DataType) {
+      case GL_UNSIGNED_BYTE:
+         UNCLAMPED_FLOAT_TO_UBYTE(clear8[0], ctx->Color.ClearColor[0]);
+         UNCLAMPED_FLOAT_TO_UBYTE(clear8[1], ctx->Color.ClearColor[1]);
+         UNCLAMPED_FLOAT_TO_UBYTE(clear8[2], ctx->Color.ClearColor[2]);
+         UNCLAMPED_FLOAT_TO_UBYTE(clear8[3], ctx->Color.ClearColor[3]);
+         clearVal = clear8;
+         break;
+      case GL_UNSIGNED_SHORT:
+         UNCLAMPED_FLOAT_TO_USHORT(clear16[0], ctx->Color.ClearColor[0]);
+         UNCLAMPED_FLOAT_TO_USHORT(clear16[1], ctx->Color.ClearColor[1]);
+         UNCLAMPED_FLOAT_TO_USHORT(clear16[2], ctx->Color.ClearColor[2]);
+         UNCLAMPED_FLOAT_TO_USHORT(clear16[3], ctx->Color.ClearColor[3]);
+         clearVal = clear16;
+         break;
+      case GL_FLOAT:
+         clearVal = ctx->Color.ClearColor;
+         break;
+      default:
+         _mesa_problem(ctx, "Bad rb DataType in clear_color_buffer");
+         return;
+   }
+
+   for (i = 0; i < height; i++) {
+      rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
+   }
+}
+
+
+/**
+ * Clear the front/back/left/right/aux color buffers.
+ * This function is usually only called if the device driver can't
+ * clear its own color buffers for some reason (such as with masking).
+ */
+static void
+clear_color_buffers(struct gl_context *ctx)
+{
+   GLuint buf;
+
+   for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {
+      struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[buf];
+      if (ctx->Color.ColorMask[buf][0] == 0 ||
+          ctx->Color.ColorMask[buf][1] == 0 ||
+          ctx->Color.ColorMask[buf][2] == 0 ||
+          ctx->Color.ColorMask[buf][3] == 0) {
+         clear_rgba_buffer_with_masking(ctx, rb, buf);
+      }
+      else {
+         clear_rgba_buffer(ctx, rb, buf);
+      }
+   }
+}
+
+
+/**
+ * Called via the device driver's ctx->Driver.Clear() function if the
+ * device driver can't clear one or more of the buffers itself.
+ * \param buffers  bitfield of BUFFER_BIT_* values indicating which
+ *                 renderbuffers are to be cleared.
+ * \param all  if GL_TRUE, clear whole buffer, else clear specified region.
+ */
+void
+_swrast_Clear(struct gl_context *ctx, GLbitfield buffers)
+{
+#ifdef DEBUG_FOO
+   {
+      const GLbitfield legalBits =
+         BUFFER_BIT_FRONT_LEFT |
+	 BUFFER_BIT_FRONT_RIGHT |
+	 BUFFER_BIT_BACK_LEFT |
+	 BUFFER_BIT_BACK_RIGHT |
+	 BUFFER_BIT_DEPTH |
+	 BUFFER_BIT_STENCIL |
+	 BUFFER_BIT_ACCUM |
+         BUFFER_BIT_AUX0;
+      assert((buffers & (~legalBits)) == 0);
+   }
+#endif
+
+   if (!_mesa_check_conditional_render(ctx))
+      return; /* don't clear */
+
+   swrast_render_start(ctx);
+
+   /* do software clearing here */
+   if (buffers) {
+      if ((buffers & BUFFER_BITS_COLOR)
+          && (ctx->DrawBuffer->_NumColorDrawBuffers > 0)) {
+         clear_color_buffers(ctx);
+      }
+      if (buffers & BUFFER_BIT_DEPTH) {
+         _swrast_clear_depth_buffer(ctx, ctx->DrawBuffer->_DepthBuffer);
+      }
+      if (buffers & BUFFER_BIT_ACCUM) {
+         _swrast_clear_accum_buffer(ctx,
+                       ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer);
+      }
+      if (buffers & BUFFER_BIT_STENCIL) {
+         _swrast_clear_stencil_buffer(ctx, ctx->DrawBuffer->_StencilBuffer);
+      }
+   }
+
+   swrast_render_finish(ctx);
+}