svn merge ^/branches/released . --username marha

1 files changed, 328 insertions, 0 deletions

diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h b/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h
new file mode 100644
index 000000000..e0cb24142
--- /dev/null
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast_spantemp.h
@@ -0,0 +1,328 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.1
+ *
+ * Copyright (C) 1999-2006  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.
+ */
+
+
+/*
+ * Modified version of swrast/s_spantemp.h for front-buffer rendering. The
+ * no-mask paths use a scratch row to avoid repeated calls to the loader.
+ *
+ * For the mask paths we always use an array of 4 elements of RB_TYPE. This is
+ * to satisfy the xorg loader requirement of an image pitch of 32 bits and
+ * should be ok for other loaders also.
+ */
+
+
+#ifndef _SWRAST_SPANTEMP_ONCE
+#define _SWRAST_SPANTEMP_ONCE
+
+static INLINE void
+PUT_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
+{
+    __DRIcontext *ctx = swrast_context(glCtx);
+    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer);
+
+    __DRIscreen *screen = ctx->driScreenPriv;
+
+    screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
+				    x, y, 1, 1, (char *)p,
+				    draw->loaderPrivate);
+}
+
+
+static INLINE void
+GET_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p )
+{
+    __DRIcontext *ctx = swrast_context(glCtx);
+    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer);
+
+    __DRIscreen *screen = ctx->driScreenPriv;
+
+    screen->swrast_loader->getImage(read, x, y, 1, 1, (char *)p,
+				    read->loaderPrivate);
+}
+
+static INLINE void
+PUT_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
+{
+    __DRIcontext *ctx = swrast_context(glCtx);
+    __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer);
+
+    __DRIscreen *screen = ctx->driScreenPriv;
+
+    screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW,
+				    x, y, n, 1, row,
+				    draw->loaderPrivate);
+}
+
+static INLINE void
+GET_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row )
+{
+    __DRIcontext *ctx = swrast_context(glCtx);
+    __DRIdrawable *read = swrast_drawable(glCtx->ReadBuffer);
+
+    __DRIscreen *screen = ctx->driScreenPriv;
+
+    screen->swrast_loader->getImage(read, x, y, n, 1, row,
+				    read->loaderPrivate);
+}
+
+#endif /* _SWRAST_SPANTEMP_ONCE */
+
+
+/*
+ * Templates for the span/pixel-array write/read functions called via
+ * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues
+ * and PutMonoValues functions.
+ *
+ * Define the following macros before including this file:
+ *   NAME(BASE)  to generate the function name (i.e. add prefix or suffix)
+ *   RB_TYPE  the renderbuffer DataType
+ *   CI_MODE  if set, color index mode, else RGBA
+ *   SPAN_VARS  to declare any local variables
+ *   INIT_PIXEL_PTR(P, X, Y)  to initialize a pointer to a pixel
+ *   INC_PIXEL_PTR(P)  to increment a pixel pointer by one pixel
+ *   STORE_PIXEL(DST, X, Y, VALUE)  to store pixel values in buffer
+ *   FETCH_PIXEL(DST, SRC)  to fetch pixel values from buffer
+ *
+ * Note that in the STORE_PIXEL macros, we also pass in the (X,Y) coordinates
+ * for the pixels to be stored.  This is useful when dithering and probably
+ * ignored otherwise.
+ */
+
+#include "main/macros.h"
+
+
+#ifdef CI_MODE
+#define RB_COMPONENTS 1
+#elif !defined(RB_COMPONENTS)
+#define RB_COMPONENTS 4
+#endif
+
+
+static void
+NAME(get_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
+               GLuint count, GLint x, GLint y, void *values )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+#ifdef CI_MODE
+   RB_TYPE *dest = (RB_TYPE *) values;
+#else
+   RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
+#endif
+   GLuint i;
+   char *row = swrast_drawable(ctx->ReadBuffer)->row;
+   INIT_PIXEL_PTR(pixel, x, y);
+   GET_ROW( ctx, x, YFLIP(xrb, y), count, row );
+   for (i = 0; i < count; i++) {
+      FETCH_PIXEL(dest[i], pixel);
+      INC_PIXEL_PTR(pixel);
+   }
+   (void) rb;
+}
+
+
+static void
+NAME(get_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
+                  GLuint count, const GLint x[], const GLint y[], void *values )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+#ifdef CI_MODE
+   RB_TYPE *dest = (RB_TYPE *) values;
+#else
+   RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values;
+#endif
+   GLuint i;
+   for (i = 0; i < count; i++) {
+      RB_TYPE pixel[4];
+      GET_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+      FETCH_PIXEL(dest[i], pixel);
+   }
+   (void) rb;
+}
+
+
+static void
+NAME(put_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
+               GLuint count, GLint x, GLint y,
+               const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+   const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
+   GLuint i;
+   if (mask) {
+      for (i = 0; i < count; i++) {
+         if (mask[i]) {
+            RB_TYPE pixel[4];
+            STORE_PIXEL(pixel, x + i, y, src[i]);
+            PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+         }
+      }
+   }
+   else {
+      char *row = swrast_drawable(ctx->DrawBuffer)->row;
+      INIT_PIXEL_PTR(pixel, x, y);
+      for (i = 0; i < count; i++) {
+         STORE_PIXEL(pixel, x + i, y, src[i]);
+         INC_PIXEL_PTR(pixel);
+      }
+      PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+   }
+   (void) rb;
+}
+
+
+#if !defined(CI_MODE)
+static void
+NAME(put_row_rgb)( GLcontext *ctx, struct gl_renderbuffer *rb,
+                   GLuint count, GLint x, GLint y,
+                   const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+   const RB_TYPE (*src)[3] = (const RB_TYPE (*)[3]) values;
+   GLuint i;
+   if (mask) {
+      for (i = 0; i < count; i++) {
+         if (mask[i]) {
+            RB_TYPE pixel[4];
+#ifdef STORE_PIXEL_RGB
+            STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
+#else
+            STORE_PIXEL(pixel, x + i, y, src[i]);
+#endif
+            PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+         }
+      }
+   }
+   else {
+      char *row = swrast_drawable(ctx->DrawBuffer)->row;
+      INIT_PIXEL_PTR(pixel, x, y);
+      for (i = 0; i < count; i++) {
+#ifdef STORE_PIXEL_RGB
+         STORE_PIXEL_RGB(pixel, x + i, y, src[i]);
+#else
+         STORE_PIXEL(pixel, x + i, y, src[i]);
+#endif
+         INC_PIXEL_PTR(pixel);
+      }
+      PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+   }
+   (void) rb;
+}
+#endif
+
+
+static void
+NAME(put_mono_row)( GLcontext *ctx, struct gl_renderbuffer *rb,
+                    GLuint count, GLint x, GLint y,
+                    const void *value, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+   const RB_TYPE *src = (const RB_TYPE *) value;
+   GLuint i;
+   if (mask) {
+      for (i = 0; i < count; i++) {
+         if (mask[i]) {
+            RB_TYPE pixel[4];
+            STORE_PIXEL(pixel, x + i, y, src);
+            PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel);
+         }
+      }
+   }
+   else {
+      char *row = swrast_drawable(ctx->DrawBuffer)->row;
+      INIT_PIXEL_PTR(pixel, x, y);
+      for (i = 0; i < count; i++) {
+         STORE_PIXEL(pixel, x + i, y, src);
+         INC_PIXEL_PTR(pixel);
+      }
+      PUT_ROW( ctx, x, YFLIP(xrb, y), count, row );
+   }
+   (void) rb;
+}
+
+
+static void
+NAME(put_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
+                  GLuint count, const GLint x[], const GLint y[],
+                  const void *values, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+   const RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values;
+   GLuint i;
+   ASSERT(mask);
+   for (i = 0; i < count; i++) {
+      if (mask[i]) {
+         RB_TYPE pixel[4];
+         STORE_PIXEL(pixel, x[i], y[i], src[i]);
+         PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+      }
+   }
+   (void) rb;
+}
+
+
+static void
+NAME(put_mono_values)( GLcontext *ctx, struct gl_renderbuffer *rb,
+                       GLuint count, const GLint x[], const GLint y[],
+                       const void *value, const GLubyte mask[] )
+{
+#ifdef SPAN_VARS
+   SPAN_VARS
+#endif
+   const RB_TYPE *src = (const RB_TYPE *) value;
+   GLuint i;
+   ASSERT(mask);
+   for (i = 0; i < count; i++) {
+      if (mask[i]) {
+         RB_TYPE pixel[4];
+         STORE_PIXEL(pixel, x[i], y[i], src);
+         PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel);
+      }
+   }
+   (void) rb;
+}
+
+
+#undef NAME
+#undef RB_TYPE
+#undef RB_COMPONENTS
+#undef CI_MODE
+#undef SPAN_VARS
+#undef INIT_PIXEL_PTR
+#undef INC_PIXEL_PTR
+#undef STORE_PIXEL
+#undef STORE_PIXEL_RGB
+#undef FETCH_PIXEL