Rename drivers/dri/i915pipe --> drivers/dri/intel_winsys.

This is appropriate as this is not a "pipe driver for the i915" as the
old name would suggest, but rather a dri driver that can provide "winsys"
backends to softpipe/i915/i965/etc pipe drivers, running under the
intel DDX, drm, etc.

It also frees up the i915pipe name for something more appropriate, ie
mesa/pipe/i915pipe.

1 files changed, 394 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/intel_winsys/intel_blit.c b/src/mesa/drivers/dri/intel_winsys/intel_blit.c
new file mode 100644
index 0000000000..8e878f0088
--- /dev/null
+++ b/src/mesa/drivers/dri/intel_winsys/intel_blit.c
@@ -0,0 +1,394 @@
+/**************************************************************************
+ * 
+ * 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 "mtypes.h"
+#include "context.h"
+#include "enums.h"
+
+#include "intel_batchbuffer.h"
+#include "intel_blit.h"
+#include "intel_buffers.h"
+#include "intel_context.h"
+#include "intel_fbo.h"
+#include "intel_reg.h"
+#include "vblank.h"
+
+#include "pipe/p_context.h"
+
+
+#define FILE_DEBUG_FLAG DEBUG_BLIT
+
+/**
+ * Copy the back color buffer to the front color buffer. 
+ * Used for SwapBuffers().
+ */
+void
+intelCopyBuffer(__DRIdrawablePrivate * dPriv,
+                const drm_clip_rect_t * rect)
+{
+
+   struct intel_context *intel;
+   const intelScreenPrivate *intelScreen;
+
+   DBG("%s\n", __FUNCTION__);
+
+   assert(dPriv);
+
+   intel = intelScreenContext(dPriv->driScreenPriv->private);
+   if (!intel)
+      return;
+
+   intelScreen = intel->intelScreen;
+
+   if (intel->last_swap_fence) {
+      driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, GL_TRUE);
+      driFenceUnReference(intel->last_swap_fence);
+      intel->last_swap_fence = NULL;
+   }
+   intel->last_swap_fence = intel->first_swap_fence;
+   intel->first_swap_fence = NULL;
+
+   /* The LOCK_HARDWARE is required for the cliprects.  Buffer offsets
+    * should work regardless.
+    */
+   LOCK_HARDWARE(intel);
+   /* if this drawable isn't currently bound the LOCK_HARDWARE done on the
+      current context (which is what intelScreenContext should return) might
+      not get a contended lock and thus cliprects not updated (tests/manywin) */
+      if ((struct intel_context *)dPriv->driContextPriv->driverPrivate != intel)
+         DRI_VALIDATE_DRAWABLE_INFO(intel->driScreen, dPriv);
+
+
+   if (dPriv && dPriv->numClipRects) {
+      struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
+      const struct pipe_region *backRegion
+	 = intel_fb->Base._ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT ?
+	   intel_get_rb_region(&intel_fb->Base, BUFFER_FRONT_LEFT) :
+	   intel_get_rb_region(&intel_fb->Base, BUFFER_BACK_LEFT);
+      const int backWidth = intel_fb->Base.Width;
+      const int backHeight = intel_fb->Base.Height;
+      const int nbox = dPriv->numClipRects;
+      const drm_clip_rect_t *pbox = dPriv->pClipRects;
+      const int pitch = intelScreen->front.pitch / intelScreen->front.cpp;
+      const int srcpitch = backRegion->pitch;
+      const int cpp = intelScreen->front.cpp;
+      int BR13, CMD;
+      int i;
+
+      ASSERT(intel_fb);
+      ASSERT(intel_fb->Base.Name == 0);    /* Not a user-created FBO */
+      ASSERT(backRegion);
+      ASSERT(backRegion->cpp == cpp);
+
+      DBG("front pitch %d back pitch %d\n",
+	 pitch, backRegion->pitch);
+
+      if (cpp == 2) {
+	 BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24);
+	 CMD = XY_SRC_COPY_BLT_CMD;
+      }
+      else {
+	 BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24) | (1 << 25);
+	 CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
+		XY_SRC_COPY_BLT_WRITE_RGB);
+      }
+
+      for (i = 0; i < nbox; i++, pbox++) {
+	 drm_clip_rect_t box;
+	 drm_clip_rect_t sbox;
+
+	 if (pbox->x1 > pbox->x2 ||
+	     pbox->y1 > pbox->y2 ||
+	     pbox->x2 > intelScreen->front.width || 
+	     pbox->y2 > intelScreen->front.height)
+	    continue;
+
+	 box = *pbox;
+
+	 if (rect) {
+	    drm_clip_rect_t rrect;
+
+	    rrect.x1 = dPriv->x + rect->x1;
+	    rrect.y1 = (dPriv->h - rect->y1 - rect->y2) + dPriv->y;
+	    rrect.x2 = rect->x2 + rrect.x1;
+	    rrect.y2 = rect->y2 + rrect.y1;
+	    if (rrect.x1 > box.x1)
+	       box.x1 = rrect.x1;
+	    if (rrect.y1 > box.y1)
+	       box.y1 = rrect.y1;
+	    if (rrect.x2 < box.x2)
+	       box.x2 = rrect.x2;
+	    if (rrect.y2 < box.y2)
+	       box.y2 = rrect.y2;
+
+	    if (box.x1 > box.x2 || box.y1 > box.y2)
+	       continue;
+	 }
+
+	 /* restrict blit to size of actually rendered area */
+	 if (box.x2 - box.x1 > backWidth)
+	    box.x2 = backWidth + box.x1;
+	 if (box.y2 - box.y1 > backHeight)
+	    box.y2 = backHeight + box.y1;
+
+	 DBG("box x1 x2 y1 y2 %d %d %d %d\n",
+	      box.x1, box.x2, box.y1, box.y2);
+
+	 sbox.x1 = box.x1 - dPriv->x;
+	 sbox.y1 = box.y1 - dPriv->y;
+
+	 BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+	 OUT_BATCH(CMD);
+	 OUT_BATCH(BR13);
+	 OUT_BATCH((box.y1 << 16) | box.x1);
+	 OUT_BATCH((box.y2 << 16) | box.x2);
+
+	 OUT_RELOC(intelScreen->front.buffer, 
+		   DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+		   DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
+	 OUT_BATCH((sbox.y1 << 16) | sbox.x1);
+	 OUT_BATCH((srcpitch * cpp) & 0xffff);
+	 OUT_RELOC(backRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+		   DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
+
+	 ADVANCE_BATCH();
+      }
+
+      if (intel->first_swap_fence)
+	 driFenceUnReference(intel->first_swap_fence);
+      intel->first_swap_fence = intel_batchbuffer_flush(intel->batch);
+      driFenceReference(intel->first_swap_fence);
+   }
+
+   UNLOCK_HARDWARE(intel);
+
+   /* XXX this is bogus. The context here may not even be bound to this drawable! */
+   if (intel->lastStamp != dPriv->lastStamp) {
+      GET_CURRENT_CONTEXT(currctx);
+      struct intel_context *intelcurrent = intel_context(currctx);
+      if (intelcurrent == intel && intelcurrent->driDrawable == dPriv) {
+         intelWindowMoved(intel);
+         intel->lastStamp = dPriv->lastStamp;
+      }
+   }
+
+}
+
+
+
+
+void
+intelEmitFillBlit(struct intel_context *intel,
+                  GLuint cpp,
+                  GLshort dst_pitch,
+                  struct _DriBufferObject *dst_buffer,
+                  GLuint dst_offset,
+                  GLshort x, GLshort y, GLshort w, GLshort h,
+                  GLuint value, GLuint mask)
+{
+   GLuint BR13, CMD;
+   GLboolean badMask = GL_FALSE;
+   BATCH_LOCALS;
+
+   /*
+   printf("Emit fill blit value=0x%x  mask=0x%x\n", value, mask);
+   */
+
+   dst_pitch *= cpp;
+
+   switch (cpp) {
+   case 1:
+   case 2:
+   case 3:
+      BR13 = dst_pitch | (0xF0 << 16) | (1 << 24);
+      CMD = XY_COLOR_BLT_CMD;
+      if ((mask & 0xffff) != 0xffff)
+         badMask = GL_TRUE;
+      break;
+   case 4:
+      BR13 = dst_pitch | (0xF0 << 16) | (1 << 24) | (1 << 25);
+#if 0
+      CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
+             XY_COLOR_BLT_WRITE_RGB);
+#else
+      CMD = XY_COLOR_BLT_CMD;
+      if ((mask & 0xff000000) == 0xff000000)
+         CMD |= XY_COLOR_BLT_WRITE_ALPHA;
+      else if (mask & 0xff000000)
+         badMask = GL_TRUE;
+      if ((mask & 0x00ffffff) == 0x00ffffff)
+         CMD |= XY_COLOR_BLT_WRITE_RGB;
+      else if (mask & 0x00ffffff)
+         badMask = GL_TRUE;
+#endif
+      break;
+   default:
+      return;
+   }
+
+   assert(!badMask);
+
+   DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
+       __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);
+
+
+   BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
+   OUT_BATCH(CMD);
+   OUT_BATCH(BR13);
+   OUT_BATCH((y << 16) | x);
+   OUT_BATCH(((y + h) << 16) | (x + w));
+   OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+             DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, dst_offset);
+   OUT_BATCH(value);
+   ADVANCE_BATCH();
+
+   intel_batchbuffer_flush(intel->batch);
+}
+
+
+static GLuint translate_raster_op(GLenum logicop)
+{
+   switch(logicop) {
+   case GL_CLEAR: return 0x00;
+   case GL_AND: return 0x88;
+   case GL_AND_REVERSE: return 0x44;
+   case GL_COPY: return 0xCC;
+   case GL_AND_INVERTED: return 0x22;
+   case GL_NOOP: return 0xAA;
+   case GL_XOR: return 0x66;
+   case GL_OR: return 0xEE;
+   case GL_NOR: return 0x11;
+   case GL_EQUIV: return 0x99;
+   case GL_INVERT: return 0x55;
+   case GL_OR_REVERSE: return 0xDD;
+   case GL_COPY_INVERTED: return 0x33;
+   case GL_OR_INVERTED: return 0xBB;
+   case GL_NAND: return 0x77;
+   case GL_SET: return 0xFF;
+   default: return 0;
+   }
+}
+
+
+/* Copy BitBlt
+ */
+void
+intelEmitCopyBlit(struct intel_context *intel,
+                  GLuint cpp,
+                  GLshort src_pitch,
+                  struct _DriBufferObject *src_buffer,
+                  GLuint src_offset,
+                  GLshort dst_pitch,
+                  struct _DriBufferObject *dst_buffer,
+                  GLuint dst_offset,
+                  GLshort src_x, GLshort src_y,
+                  GLshort dst_x, GLshort dst_y, 
+		  GLshort w, GLshort h,
+		  GLenum logic_op)
+{
+   GLuint CMD, BR13;
+   int dst_y2 = dst_y + h;
+   int dst_x2 = dst_x + w;
+   BATCH_LOCALS;
+
+
+   DBG("%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
+       __FUNCTION__,
+       src_buffer, src_pitch, src_offset, src_x, src_y,
+       dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
+
+   src_pitch *= cpp;
+   dst_pitch *= cpp;
+
+   switch (cpp) {
+   case 1:
+   case 2:
+   case 3:
+      BR13 = (((GLint) dst_pitch) & 0xffff) | 
+	 (translate_raster_op(logic_op) << 16) | (1 << 24);
+      CMD = XY_SRC_COPY_BLT_CMD;
+      break;
+   case 4:
+      BR13 =
+         (((GLint) dst_pitch) & 0xffff) | 
+	 (translate_raster_op(logic_op) << 16) | (1 << 24) | (1 << 25);
+      CMD =
+         (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
+          XY_SRC_COPY_BLT_WRITE_RGB);
+      break;
+   default:
+      return;
+   }
+
+   if (dst_y2 < dst_y || dst_x2 < dst_x) {
+      return;
+   }
+
+   /* Initial y values don't seem to work with negative pitches.  If
+    * we adjust the offsets manually (below), it seems to work fine.
+    *
+    * On the other hand, if we always adjust, the hardware doesn't
+    * know which blit directions to use, so overlapping copypixels get
+    * the wrong result.
+    */
+   if (dst_pitch > 0 && src_pitch > 0) {
+      BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+      OUT_BATCH(CMD);
+      OUT_BATCH(BR13);
+      OUT_BATCH((dst_y << 16) | dst_x);
+      OUT_BATCH((dst_y2 << 16) | dst_x2);
+      OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+                DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, dst_offset);
+      OUT_BATCH((src_y << 16) | src_x);
+      OUT_BATCH(((GLint) src_pitch & 0xffff));
+      OUT_RELOC(src_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+                DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, src_offset);
+      ADVANCE_BATCH();
+   }
+   else {
+      BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+      OUT_BATCH(CMD);
+      OUT_BATCH(BR13);
+      OUT_BATCH((0 << 16) | dst_x);
+      OUT_BATCH((h << 16) | dst_x2);
+      OUT_RELOC(dst_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+                DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE,
+                dst_offset + dst_y * dst_pitch);
+      OUT_BATCH((0 << 16) | src_x);
+      OUT_BATCH(((GLint) src_pitch & 0xffff));
+      OUT_RELOC(src_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+                DRM_BO_MASK_MEM | DRM_BO_FLAG_READ,
+                src_offset + src_y * src_pitch);
+      ADVANCE_BATCH();
+   }
+
+   intel_batchbuffer_flush( intel->batch );
+}
+
+
+