i965: Use the shared intel_pixel_copy.c.

This disables the textured copy implementation on 965, which didn't appear
to work (mesa copypix demo, disable the blit path, move so that regions don't
overlap and textured is used, and you get garbage).  If we resurrect this for
i965, I'd rather it used the 915-style metaops instead.  Current metaops code
left in place so that whoever picks it up has a reference.

1 files changed, 1 insertions, 318 deletions

diff --git a/src/mesa/drivers/dri/i965/intel_pixel_copy.c b/src/mesa/drivers/dri/i965/intel_pixel_copy.c
index dba4bb1..ee43360 100644..120000
--- a/src/mesa/drivers/dri/i965/intel_pixel_copy.c
+++ b/src/mesa/drivers/dri/i965/intel_pixel_copy.c
@@ -1,318 +1 @@
-/**************************************************************************
- * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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, sub license, 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 (including the
- * next paragraph) 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 "glheader.h"
-#include "enums.h"
-#include "image.h"
-#include "mtypes.h"
-#include "macros.h"
-#include "state.h"
-#include "swrast/swrast.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_ioctl.h"
-#include "intel_batchbuffer.h"
-#include "intel_blit.h"
-#include "intel_regions.h"
-#include "intel_buffers.h"
-#include "intel_pixel.h"
-
-#define FILE_DEBUG_FLAG DEBUG_PIXEL
-
-static struct intel_region *
-copypix_src_region(struct intel_context *intel, GLenum type)
-{
-   switch (type) {
-   case GL_COLOR:
-      return intel_readbuf_region(intel);
-   case GL_DEPTH:
-      /* Don't think this is really possible execpt at 16bpp, when we have no stencil.
-       */
-      if (intel->depth_region && intel->depth_region->cpp == 2)
-         return intel->depth_region;
-   case GL_STENCIL:
-      /* Don't think this is really possible. 
-       */
-      break;
-   case GL_DEPTH_STENCIL_EXT:
-      /* Does it matter whether it is stencil/depth or depth/stencil?
-       */
-      return intel->depth_region;
-   default:
-      break;
-   }
-
-   return NULL;
-}
-
-/* Doesn't work for overlapping regions.  Could do a double copy or
- * just fallback.
- */
-static GLboolean
-do_texture_copypixels(GLcontext * ctx,
-                      GLint srcx, GLint srcy,
-                      GLsizei width, GLsizei height,
-                      GLint dstx, GLint dsty, GLenum type)
-{
-   struct intel_context *intel = intel_context(ctx);
-   struct intel_region *dst = intel_drawbuf_region(intel);
-   struct intel_region *src = copypix_src_region(intel, type);
-   GLenum src_format;
-   GLenum src_type;
-
-   DBG("%s %d,%d %dx%d --> %d,%d\n", __FUNCTION__, 
-       srcx, srcy, width, height, dstx, dsty);
-
-   if (!src || !dst || type != GL_COLOR ||
-       ctx->_ImageTransferState ||
-       ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F ||
-       ctx->RenderMode != GL_RENDER ||
-       ctx->Texture._EnabledUnits ||
-       ctx->FragmentProgram._Enabled ||
-       src != dst )
-       return GL_FALSE;
-   
-   /* Can't handle overlapping regions.  Don't have sufficient control
-    * over rasterization to pull it off in-place.  Punt on these for
-    * now.
-    * 
-    * XXX: do a copy to a temporary. 
-    */
-   if (src->buffer == dst->buffer) {
-      drm_clip_rect_t srcbox;
-      drm_clip_rect_t dstbox;
-      drm_clip_rect_t tmp;
-
-      srcbox.x1 = srcx;
-      srcbox.y1 = srcy;
-      srcbox.x2 = srcx + width - 1;
-      srcbox.y2 = srcy + height - 1;
-
-      dstbox.x1 = dstx;
-      dstbox.y1 = dsty;
-      dstbox.x2 = dstx + width - 1;
-      dstbox.y2 = dsty + height - 1;
-
-      DBG("src %d,%d %d,%d\n", srcbox.x1, srcbox.y1, srcbox.x2, srcbox.y2);
-      DBG("dst %d,%d %d,%d (%dx%d) (%f,%f)\n", dstbox.x1, dstbox.y1, dstbox.x2, dstbox.y2,
-	  width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
-
-      if (intel_intersect_cliprects(&tmp, &srcbox, &dstbox)) {
-         DBG("%s: regions overlap\n", __FUNCTION__);
-         return GL_FALSE;
-      }
-   }
-
-   intelFlush(&intel->ctx);
-
-   intel->vtbl.install_meta_state(intel);
-
-   /* Is this true?  Also will need to turn depth testing on according
-    * to state:
-    */
-   intel->vtbl.meta_no_stencil_write(intel);
-   intel->vtbl.meta_no_depth_write(intel);
-
-   /* Set the 3d engine to draw into the destination region:
-    */
-   intel->vtbl.meta_draw_region(intel, dst, intel->depth_region);
-
-   intel->vtbl.meta_import_pixel_state(intel);
-
-   if (src->cpp == 2) {
-      src_format = GL_RGB;
-      src_type = GL_UNSIGNED_SHORT_5_6_5;
-   }
-   else {
-      src_format = GL_BGRA;
-      src_type = GL_UNSIGNED_BYTE;
-   }
-
-   /* Set the frontbuffer up as a large rectangular texture.
-    */
-   intel->vtbl.meta_frame_buffer_texture( intel, srcx - dstx, srcy - dsty );
-
-   intel->vtbl.meta_texture_blend_replace(intel);
-   
-   if (intel->driDrawable->numClipRects)
-      intel->vtbl.meta_draw_quad( intel,
-				  dstx, dstx + width,
-				  dsty, dsty + height,
-				  ctx->Current.RasterPos[ 2 ],
-				  0, 0.0, 0.0, 0.0, 0.0 );
-   
-   intel->vtbl.leave_meta_state( intel );
-   
-   DBG("%s: success\n", __FUNCTION__);
-   return GL_TRUE;
-}
-
-/**
- * CopyPixels with the blitter.  Don't support zooming, pixel transfer, etc.
- */
-static GLboolean
-do_blit_copypixels(GLcontext * ctx,
-                   GLint srcx, GLint srcy,
-                   GLsizei width, GLsizei height,
-                   GLint dstx, GLint dsty, GLenum type)
-{
-   struct intel_context *intel = intel_context(ctx);
-   struct intel_region *dst = intel_drawbuf_region(intel);
-   struct intel_region *src = copypix_src_region(intel, type);
-
-   /* Copypixels can be more than a straight copy.  Ensure all the
-    * extra operations are disabled:
-    */
-   if (!intel_check_blit_fragment_ops(ctx, GL_FALSE) ||
-       ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F)
-      return GL_FALSE;
-
-   if (!src || !dst)
-      return GL_FALSE;
-
-
-
-   intelFlush(&intel->ctx);
-
-/*    intel->vtbl.render_start(intel); */
-/*    intel->vtbl.emit_state(intel); */
-
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable->numClipRects) {
-      __DRIdrawablePrivate *dPriv = intel->driDrawable;
-      __DRIdrawablePrivate *dReadPriv = intel->driReadDrawable;
-      drm_clip_rect_t *box = dPriv->pClipRects;
-      drm_clip_rect_t dest_rect;
-      GLint nbox = dPriv->numClipRects;
-      GLint delta_x = 0;
-      GLint delta_y = 0;
-      GLuint i;
-
-      /* Do scissoring in GL coordinates:
-       */
-      if (ctx->Scissor.Enabled)
-      {
-	 GLint x = ctx->Scissor.X;
-	 GLint y = ctx->Scissor.Y;
-	 GLuint w = ctx->Scissor.Width;
-	 GLuint h = ctx->Scissor.Height;
-	 GLint dx = dstx - srcx;
-         GLint dy = dsty - srcy;
-
-         if (!_mesa_clip_to_region(x, y, x+w-1, y+h-1, &dstx, &dsty, &width, &height))
-            goto out;
-	 
-         srcx = dstx - dx;
-         srcy = dsty - dy;
-      }
-
-      /* Convert from GL to hardware coordinates:
-       */
-      dsty = dPriv->h - dsty - height;  
-      srcy = dPriv->h - srcy - height;  
-      dstx += dPriv->x;
-      dsty += dPriv->y;
-      srcx += dReadPriv->x;
-      srcy += dReadPriv->y;
-
-      /* Clip against the source region.  This is the only source
-       * clipping we do.  Dst is clipped with cliprects below.
-       */
-      {
-         delta_x = srcx - dstx;
-         delta_y = srcy - dsty;
-
-         if (!_mesa_clip_to_region(0, 0, src->pitch, src->height,
-                                   &srcx, &srcy, &width, &height))
-            goto out;
-
-         dstx = srcx - delta_x;
-         dsty = srcy - delta_y;
-      }
-
-      dest_rect.x1 = dstx;
-      dest_rect.y1 = dsty;
-      dest_rect.x2 = dstx + width;
-      dest_rect.y2 = dsty + height;
-
-/*       intel->vtbl.emit_flush(intel, 0); */
-
-      /* Could do slightly more clipping: Eg, take the intersection of
-       * the existing set of cliprects and those cliprects translated
-       * by delta_x, delta_y:
-       * 
-       * This code will not overwrite other windows, but will
-       * introduce garbage when copying from obscured window regions.
-       */
-      for (i = 0; i < nbox; i++) {
-         drm_clip_rect_t rect;
-
-         if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i]))
-            continue;
-
-
-         intelEmitCopyBlit(intel, 
-			   dst->cpp, 
-			   src->pitch, src->buffer, 0, src->tiled,
-			   dst->pitch, dst->buffer, 0, dst->tiled,
-			   rect.x1 + delta_x, 
-			   rect.y1 + delta_y,       /* srcx, srcy */
-                           rect.x1, rect.y1,    /* dstx, dsty */
-                           rect.x2 - rect.x1, rect.y2 - rect.y1,
-			   ctx->Color.ColorLogicOpEnabled ?
-			   ctx->Color.LogicOp : GL_COPY);
-      }
-
-   out:
-      intel_batchbuffer_flush(intel->batch);
-   }
-   UNLOCK_HARDWARE(intel);
-   return GL_TRUE;
-}
-
-void
-intelCopyPixels(GLcontext * ctx,
-                GLint srcx, GLint srcy,
-                GLsizei width, GLsizei height,
-                GLint destx, GLint desty, GLenum type)
-{
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      fprintf(stderr, "%s\n", __FUNCTION__);
-
-   if (do_blit_copypixels(ctx, srcx, srcy, width, height, destx, desty, type))
-      return;
-
-   if (do_texture_copypixels(ctx, srcx, srcy, width, height, destx, desty, type))
-      return;
-   
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      _mesa_printf("fallback to _swrast_CopyPixels\n");
-
-   _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type);
-}
+../intel/intel_pixel_copy.c
\ No newline at end of file