[intel] Move some pixel path support from drivers to shared.

4 files changed, 3 insertions, 951 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_pixel.c b/src/mesa/drivers/dri/i915/intel_pixel.c
index 9018e3daef..d733c5e874 100644..120000
--- a/src/mesa/drivers/dri/i915/intel_pixel.c
+++ b/src/mesa/drivers/dri/i915/intel_pixel.c
@@ -1,120 +1 @@
-/**************************************************************************
- * 
- * Copyright 2006 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 portionsalloc
- * 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 "enums.h"
-#include "state.h"
-#include "swrast/swrast.h"
-
-#include "intel_context.h"
-#include "intel_pixel.h"
-#include "intel_regions.h"
-
-
-/**
- * Check if any fragment operations are in effect which might effect
- * glDraw/CopyPixels.
- */
-GLboolean
-intel_check_blit_fragment_ops(GLcontext * ctx)
-{
-   if (ctx->NewState)
-      _mesa_update_state(ctx);
-
-   /* XXX Note: Scissor could be done with the blitter:
-    */
-   return !(ctx->_ImageTransferState ||
-            ctx->Color.AlphaEnabled ||
-            ctx->Depth.Test ||
-            ctx->Fog.Enabled ||
-            ctx->Scissor.Enabled ||
-            ctx->Stencil.Enabled ||
-            !ctx->Color.ColorMask[0] ||
-            !ctx->Color.ColorMask[1] ||
-            !ctx->Color.ColorMask[2] ||
-            !ctx->Color.ColorMask[3] ||
-            ctx->Texture._EnabledUnits || 
-	    ctx->FragmentProgram._Enabled ||
-	    ctx->Color.BlendEnabled);
-}
-
-
-GLboolean
-intel_check_meta_tex_fragment_ops(GLcontext * ctx)
-{
-   if (ctx->NewState)
-      _mesa_update_state(ctx);
-
-   /* Some of _ImageTransferState (scale, bias) could be done with
-    * fragment programs on i915.
-    */
-   return !(ctx->_ImageTransferState || ctx->Fog.Enabled ||     /* not done yet */
-            ctx->Texture._EnabledUnits || ctx->FragmentProgram._Enabled);
-}
-
-/* The intel_region struct doesn't really do enough to capture the
- * format of the pixels in the region.  For now this code assumes that
- * the region is a display surface and hence is either ARGB8888 or
- * RGB565.
- * XXX FBO: If we'd pass in the intel_renderbuffer instead of region, we'd
- * know the buffer's pixel format.
- *
- * \param format  as given to glDraw/ReadPixels
- * \param type  as given to glDraw/ReadPixels
- */
-GLboolean
-intel_check_blit_format(struct intel_region * region,
-                        GLenum format, GLenum type)
-{
-   if (region->cpp == 4 &&
-       (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
-        type == GL_UNSIGNED_BYTE) && format == GL_BGRA) {
-      return GL_TRUE;
-   }
-
-   if (region->cpp == 2 &&
-       type == GL_UNSIGNED_SHORT_5_6_5_REV && format == GL_BGR) {
-      return GL_TRUE;
-   }
-
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      fprintf(stderr, "%s: bad format for blit (cpp %d, type %s format %s)\n",
-              __FUNCTION__, region->cpp,
-              _mesa_lookup_enum_by_nr(type), _mesa_lookup_enum_by_nr(format));
-
-   return GL_FALSE;
-}
-
-
-void
-intelInitPixelFuncs(struct dd_function_table *functions)
-{
-   functions->Accum = _swrast_Accum;
-   functions->Bitmap = _swrast_Bitmap;
-   functions->CopyPixels = intelCopyPixels;
-   functions->ReadPixels = intelReadPixels;
-   functions->DrawPixels = intelDrawPixels;
-}
+../intel/intel_pixel.c
\ No newline at end of file
diff --git a/src/mesa/drivers/dri/i915/intel_pixel.h b/src/mesa/drivers/dri/i915/intel_pixel.h
deleted file mode 100644
index a6fcf90ce0..0000000000
--- a/src/mesa/drivers/dri/i915/intel_pixel.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2006 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.
- * 
- **************************************************************************/
-
-#ifndef INTEL_PIXEL_H
-#define INTEL_PIXEL_H
-
-#include "mtypes.h"
-
-void intelInitPixelFuncs(struct dd_function_table *functions);
-
-GLboolean intel_check_blit_fragment_ops(GLcontext * ctx);
-
-GLboolean intel_check_meta_tex_fragment_ops(GLcontext * ctx);
-
-GLboolean intel_check_blit_format(struct intel_region *region,
-                                  GLenum format, GLenum type);
-
-
-void intelReadPixels(GLcontext * ctx,
-                     GLint x, GLint y,
-                     GLsizei width, GLsizei height,
-                     GLenum format, GLenum type,
-                     const struct gl_pixelstore_attrib *pack,
-                     GLvoid * pixels);
-
-void intelDrawPixels(GLcontext * ctx,
-                     GLint x, GLint y,
-                     GLsizei width, GLsizei height,
-                     GLenum format,
-                     GLenum type,
-                     const struct gl_pixelstore_attrib *unpack,
-                     const GLvoid * pixels);
-
-void intelCopyPixels(GLcontext * ctx,
-                     GLint srcx, GLint srcy,
-                     GLsizei width, GLsizei height,
-                     GLint destx, GLint desty, GLenum type);
-
-#endif
diff --git a/src/mesa/drivers/dri/i915/intel_pixel_copy.c b/src/mesa/drivers/dri/i915/intel_pixel_copy.c
index c453097e55..ee43360590 100644..120000
--- a/src/mesa/drivers/dri/i915/intel_pixel_copy.c
+++ b/src/mesa/drivers/dri/i915/intel_pixel_copy.c
@@ -1,382 +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 "state.h"
-#include "mtypes.h"
-#include "macros.h"
-#include "swrast/swrast.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_ioctl.h"
-#include "intel_batchbuffer.h"
-#include "intel_buffers.h"
-#include "intel_blit.h"
-#include "intel_regions.h"
-#include "intel_tris.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;
-}
-
-
-/**
- * Check if any fragment operations are in effect which might effect
- * glCopyPixels.  Differs from intel_check_blit_fragment_ops in that
- * we allow Scissor.
- */
-static GLboolean
-intel_check_copypixel_blit_fragment_ops(GLcontext * ctx)
-{
-   if (ctx->NewState)
-      _mesa_update_state(ctx);
-
-   /* Could do logicop with the blitter: 
-    */
-   return !(ctx->_ImageTransferState ||
-            ctx->Color.AlphaEnabled ||
-            ctx->Depth.Test ||
-            ctx->Fog.Enabled ||
-            ctx->Stencil.Enabled ||
-            !ctx->Color.ColorMask[0] ||
-            !ctx->Color.ColorMask[1] ||
-            !ctx->Color.ColorMask[2] ||
-            !ctx->Color.ColorMask[3] ||
-            ctx->Texture._EnabledUnits ||
-	    ctx->FragmentProgram._Enabled ||
-	    ctx->Color.BlendEnabled);
-}
-
-/* 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)
-      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;
-      srcbox.y2 = srcy + height;
-
-      dstbox.x1 = dstx;
-      dstbox.y1 = dsty;
-      dstbox.x2 = dstx + width * ctx->Pixel.ZoomX;
-      dstbox.y2 = dsty + height * ctx->Pixel.ZoomY;
-
-      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.
-    */
-   if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, 0,
-                                         src->pitch,
-                                         src->height, src_format, src_type)) {
-      intel->vtbl.leave_meta_state(intel);
-      return GL_FALSE;
-   }
-
-
-   intel->vtbl.meta_texture_blend_replace(intel);
-
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable->numClipRects) {
-      __DRIdrawablePrivate *dPriv = intel->driDrawable;
-
-
-      srcy = dPriv->h - srcy - height;  /* convert from gl to hardware coords */
-
-      srcx += dPriv->x;
-      srcy += dPriv->y;
-
-      /* Clip against the source region.  This is the only source
-       * clipping we do.  XXX: Just set the texcord wrap mode to clamp
-       * or similar.
-       *
-       */
-      if (0) {
-         GLint orig_x = srcx;
-         GLint orig_y = srcy;
-
-         if (!_mesa_clip_to_region(0, 0, src->pitch, src->height,
-                                   &srcx, &srcy, &width, &height))
-            goto out;
-
-         dstx += srcx - orig_x;
-         dsty += (srcy - orig_y) * ctx->Pixel.ZoomY;
-      }
-
-      /* Just use the regular cliprect mechanism...  Does this need to
-       * even hold the lock???
-       */
-      intel->vtbl.meta_draw_quad(intel,
-				 dstx,
-				 dstx + width * ctx->Pixel.ZoomX,
-				 dPriv->h - (dsty + height * ctx->Pixel.ZoomY),
-				 dPriv->h - (dsty), 0, /* XXX: what z value? */
-				 0x00ff00ff,
-				 srcx, srcx + width, srcy, srcy + height);
-
-    out:
-      intel->vtbl.leave_meta_state(intel);
-      intel_batchbuffer_flush(intel->batch);
-   }
-   UNLOCK_HARDWARE(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_copypixel_blit_fragment_ops(ctx) ||
-       ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F)
-      return GL_FALSE;
-
-   if (!src || !dst)
-      return GL_FALSE;
-
-
-
-   intelFlush(&intel->ctx);
-
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable->numClipRects) {
-      __DRIdrawablePrivate *dPriv = intel->driDrawable;
-      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 += dPriv->x;
-      srcy += dPriv->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;
-
-      /* 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);
-
-   DBG("%s: success\n", __FUNCTION__);
-   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;
-
-   DBG("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
diff --git a/src/mesa/drivers/dri/i915/intel_pixel_draw.c b/src/mesa/drivers/dri/i915/intel_pixel_draw.c
index 566f884be0..8431a24edf 100644..120000
--- a/src/mesa/drivers/dri/i915/intel_pixel_draw.c
+++ b/src/mesa/drivers/dri/i915/intel_pixel_draw.c
@@ -1,386 +1 @@
-/**************************************************************************
- * 
- * Copyright 2006 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 portionsalloc
- * 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 "bufferobj.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_buffers.h"
-#include "intel_regions.h"
-#include "intel_pixel.h"
-#include "intel_buffer_objects.h"
-#include "intel_tris.h"
-
-
-
-static GLboolean
-do_texture_drawpixels(GLcontext * ctx,
-                      GLint x, GLint y,
-                      GLsizei width, GLsizei height,
-                      GLenum format, GLenum type,
-                      const struct gl_pixelstore_attrib *unpack,
-                      const GLvoid * pixels)
-{
-   struct intel_context *intel = intel_context(ctx);
-   struct intel_region *dst = intel_drawbuf_region(intel);
-   struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
-   GLuint rowLength = unpack->RowLength ? unpack->RowLength : width;
-   GLuint src_offset;
-
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      fprintf(stderr, "%s\n", __FUNCTION__);
-
-   intelFlush(&intel->ctx);
-   intel->vtbl.render_start(intel);
-   intel->vtbl.emit_state(intel);
-
-   if (!dst)
-      return GL_FALSE;
-
-   if (src) {
-      if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
-                                     format, type, pixels)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
-         return GL_TRUE;
-      }
-   }
-   else {
-      /* PBO only for now:
-       */
-/*       _mesa_printf("%s - not PBO\n", __FUNCTION__); */
-      return GL_FALSE;
-   }
-
-   /* There are a couple of things we can't do yet, one of which is
-    * set the correct state for pixel operations when GL texturing is
-    * enabled.  That's a pretty rare state and probably not worth the
-    * effort.  A completely device-independent version of this may do
-    * more.
-    *
-    * Similarly, we make no attempt to merge metaops processing with
-    * an enabled fragment program, though it would certainly be
-    * possible.
-    */
-   if (!intel_check_meta_tex_fragment_ops(ctx)) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad GL fragment state for metaops texture\n",
-                      __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   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);
-
-   src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
-                                             format, type, 0, 0, 0);
-
-
-   /* Setup the pbo up as a rectangular texture, if possible.
-    *
-    * TODO: This is almost always possible if the i915 fragment
-    * program is adjusted to correctly swizzle the sampled colors.
-    * The major exception is any 24bit texture, like RGB888, for which
-    * there is no hardware support.  
-    */
-   if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, src_offset,
-                                         rowLength, height, format, type)) {
-      intel->vtbl.leave_meta_state(intel);
-      return GL_FALSE;
-   }
-
-   intel->vtbl.meta_texture_blend_replace(intel);
-
-
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable->numClipRects) {
-      __DRIdrawablePrivate *dPriv = intel->driDrawable;
-      GLint srcx, srcy;
-      GLint dstx, dsty;
-
-      dstx = x;
-      dsty = dPriv->h - (y + height);
-
-      srcx = 0;                 /* skiprows/pixels already done */
-      srcy = 0;
-
-      if (0) {
-         const GLint orig_x = dstx;
-         const GLint orig_y = dsty;
-
-         if (!_mesa_clip_to_region(0, 0, dst->pitch, dst->height,
-                                   &dstx, &dsty, &width, &height))
-            goto out;
-
-         srcx += dstx - orig_x;
-         srcy += dsty - orig_y;
-      }
-
-
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("draw %d,%d %dx%d\n", dstx, dsty, width, height);
-
-      /* Must use the regular cliprect mechanism in order to get the
-       * drawing origin set correctly.  Otherwise scissor state is in
-       * incorrect coordinate space.  Does this even need to hold the
-       * lock???
-       */
-      intel->vtbl.meta_draw_quad(intel,
-				 dstx, dstx + width * ctx->Pixel.ZoomX,
-				 dPriv->h - (y + height * ctx->Pixel.ZoomY),
-				 dPriv->h - (y),
-				 -ctx->Current.RasterPos[2] * .5,
-				 0x00ff00ff,
-				 srcx, srcx + width, srcy + height, srcy);
-    out:
-      intel->vtbl.leave_meta_state(intel);
-      intel_batchbuffer_flush(intel->batch);
-   }
-   UNLOCK_HARDWARE(intel);
-   return GL_TRUE;
-}
-
-
-
-
-
-/* Pros:  
- *   - no waiting for idle before updating framebuffer.
- *   
- * Cons:
- *   - if upload is by memcpy, this may actually be slower than fallback path.
- *   - uploads the whole image even if destination is clipped
- *   
- * Need to benchmark.
- *
- * Given the questions about performance, implement for pbo's only.
- * This path is definitely a win if the pbo is already in agp.  If it
- * turns out otherwise, we can add the code necessary to upload client
- * data to agp space before performing the blit.  (Though it may turn
- * out to be better/simpler just to use the texture engine).
- */
-static GLboolean
-do_blit_drawpixels(GLcontext * ctx,
-                   GLint x, GLint y,
-                   GLsizei width, GLsizei height,
-                   GLenum format, GLenum type,
-                   const struct gl_pixelstore_attrib *unpack,
-                   const GLvoid * pixels)
-{
-   struct intel_context *intel = intel_context(ctx);
-   struct intel_region *dest = intel_drawbuf_region(intel);
-   struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
-   GLuint src_offset;
-   GLuint rowLength;
-   dri_fence *fence = NULL;
-
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      _mesa_printf("%s\n", __FUNCTION__);
-
-
-   if (!dest) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - no dest\n", __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   if (src) {
-      /* This validation should be done by core mesa:
-       */
-      if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
-                                     format, type, pixels)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
-         return GL_TRUE;
-      }
-   }
-   else {
-      /* PBO only for now:
-       */
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - not PBO\n", __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   if (!intel_check_blit_format(dest, format, type)) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   if (!intel_check_blit_fragment_ops(ctx)) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad GL fragment state for blitter\n",
-                      __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   if (ctx->Pixel.ZoomX != 1.0F) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad PixelZoomX for blit\n", __FUNCTION__);
-      return GL_FALSE;
-   }
-
-
-   if (unpack->RowLength > 0)
-      rowLength = unpack->RowLength;
-   else
-      rowLength = width;
-
-   if (ctx->Pixel.ZoomY == -1.0F) {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
-      return GL_FALSE;          /* later */
-      y -= height;
-   }
-   else if (ctx->Pixel.ZoomY == 1.0F) {
-      rowLength = -rowLength;
-   }
-   else {
-      if (INTEL_DEBUG & DEBUG_PIXEL)
-         _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
-      return GL_FALSE;
-   }
-
-   src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
-                                             format, type, 0, 0, 0);
-
-   intelFlush(&intel->ctx);
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable->numClipRects) {
-      __DRIdrawablePrivate *dPriv = intel->driDrawable;
-      int nbox = dPriv->numClipRects;
-      drm_clip_rect_t *box = dPriv->pClipRects;
-      drm_clip_rect_t rect;
-      drm_clip_rect_t dest_rect;
-      dri_bo *src_buffer = intel_bufferobj_buffer(intel, src, INTEL_READ);
-      int i;
-
-      dest_rect.x1 = dPriv->x + x;
-      dest_rect.y1 = dPriv->y + dPriv->h - (y + height);
-      dest_rect.x2 = dest_rect.x1 + width;
-      dest_rect.y2 = dest_rect.y1 + height;
-
-      for (i = 0; i < nbox; i++) {
-         if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i]))
-            continue;
-
-         intelEmitCopyBlit(intel,
-                           dest->cpp,
-                           rowLength, src_buffer, src_offset, GL_FALSE,
-                           dest->pitch, dest->buffer, 0, dest->tiled,
-                           rect.x1 - dest_rect.x1,
-                           rect.y2 - dest_rect.y2,
-                           rect.x1,
-                           rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1,
-			   ctx->Color.ColorLogicOpEnabled ?
-			   ctx->Color.LogicOp : GL_COPY);
-      }
-      intel_batchbuffer_flush(intel->batch);
-      fence = intel->batch->last_fence;
-      dri_fence_reference(fence);
-   }
-   UNLOCK_HARDWARE(intel);
-
-   if (fence) {
-      dri_fence_wait(fence);
-      dri_fence_unreference(fence);
-   }
-
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      _mesa_printf("%s - DONE\n", __FUNCTION__);
-
-   return GL_TRUE;
-}
-
-
-
-void
-intelDrawPixels(GLcontext * ctx,
-                GLint x, GLint y,
-                GLsizei width, GLsizei height,
-                GLenum format,
-                GLenum type,
-                const struct gl_pixelstore_attrib *unpack,
-                const GLvoid * pixels)
-{
-   if (do_blit_drawpixels(ctx, x, y, width, height, format, type,
-                          unpack, pixels))
-      return;
-
-   if (do_texture_drawpixels(ctx, x, y, width, height, format, type,
-                             unpack, pixels))
-      return;
-
-
-   if (INTEL_DEBUG & DEBUG_PIXEL)
-      _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
-
-   if (ctx->FragmentProgram._Current == ctx->FragmentProgram._TexEnvProgram) {
-      /*
-       * We don't want the i915 texenv program to be applied to DrawPixels.
-       * This is really just a performance optimization (mesa will other-
-       * wise happily run the fragment program on each pixel in the image).
-       */
-      struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
-   /* can't just set current frag prog to 0 here as on buffer resize
-      we'll get new state checks which will segfault. Remains a hack. */
-      ctx->FragmentProgram._Current = NULL;
-      ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE;
-      ctx->FragmentProgram._Active = GL_FALSE;
-      _swrast_DrawPixels( ctx, x, y, width, height, format, type,
-                          unpack, pixels );
-      ctx->FragmentProgram._Current = fpSave;
-      ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
-      ctx->FragmentProgram._Active = GL_TRUE;
-   }
-   else {
-      _swrast_DrawPixels( ctx, x, y, width, height, format, type,
-                          unpack, pixels );
-   }
-}
+../intel/intel_pixel_draw.c
\ No newline at end of file