1 files changed, 277 insertions, 0 deletions

diff --git a/vmwgfx/vmwgfx_xa_composite.c b/vmwgfx/vmwgfx_xa_composite.c
new file mode 100644
index 0000000..a2e3970
--- /dev/null
+++ b/vmwgfx/vmwgfx_xa_composite.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2009-2011 VMWare, Inc.
+ * 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.
+ *
+ * Author: Thomas Hellstrom <thellstrom@vmware.com>
+ * Author: Zack Ruzin <zackr@vmware.com>
+ *
+ * The code in this file translates XRender PICT composite stuff
+ * to fit the libxatracker API.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <picturestr.h>
+#include <X11/extensions/Xrender.h>
+#include "xa_composite.h"
+#include "vmwgfx_saa.h"
+#include "vmwgfx_saa_priv.h"
+
+
+struct vmwgfx_composite {
+    union xa_source_pict *src_spict;
+    union xa_source_pict *mask_spict;
+    union xa_source_pict *dst_spict;
+    struct xa_picture *src_pict;
+    struct xa_picture *mask_pict;
+    struct xa_picture *dst_pict;
+    struct xa_composite *comp;
+};
+
+static const enum xa_composite_op vmwgfx_op_map[] = {
+    [PictOpClear] = xa_op_clear,
+    [PictOpSrc] = xa_op_src,
+    [PictOpDst] = xa_op_dst,
+    [PictOpOver] = xa_op_over,
+    [PictOpOverReverse] = xa_op_over_reverse,
+    [PictOpIn] = xa_op_in,
+    [PictOpInReverse] = xa_op_in_reverse,
+    [PictOpOut] = xa_op_out,
+    [PictOpOutReverse] = xa_op_out_reverse,
+    [PictOpAtop] = xa_op_atop,
+    [PictOpAtopReverse] = xa_op_atop_reverse,
+    [PictOpXor] = xa_op_xor,
+    [PictOpAdd] = xa_op_add
+};
+
+static const unsigned int vmwgfx_op_map_size =
+    sizeof(vmwgfx_op_map) / sizeof(enum xa_composite_op);
+
+static Bool
+vmwgfx_matrix_from_pict_transform(PictTransform *trans, float *matrix)
+{
+   if (!trans)
+      return FALSE;
+
+   matrix[0] = XFixedToDouble(trans->matrix[0][0]);
+   matrix[3] = XFixedToDouble(trans->matrix[0][1]);
+   matrix[6] = XFixedToDouble(trans->matrix[0][2]);
+
+   matrix[1] = XFixedToDouble(trans->matrix[1][0]);
+   matrix[4] = XFixedToDouble(trans->matrix[1][1]);
+   matrix[7] = XFixedToDouble(trans->matrix[1][2]);
+
+   matrix[2] = XFixedToDouble(trans->matrix[2][0]);
+   matrix[5] = XFixedToDouble(trans->matrix[2][1]);
+   matrix[8] = XFixedToDouble(trans->matrix[2][2]);
+
+   return TRUE;
+}
+
+static enum xa_composite_wrap
+vmwgfx_xa_setup_wrap(Bool pict_has_repeat, int pict_repeat)
+{
+    enum xa_composite_wrap wrap = xa_wrap_clamp_to_border;
+
+    if (!pict_has_repeat)
+	return wrap;
+
+    switch(pict_repeat) {
+    case RepeatNormal:
+	wrap = xa_wrap_repeat;
+	break;
+    case RepeatReflect:
+	wrap = xa_wrap_mirror_repeat;
+	break;
+    case RepeatPad:
+	wrap = xa_wrap_clamp_to_edge;
+	break;
+    default:
+	break;
+    }
+    return wrap;
+}
+
+static Bool
+vmwgfx_render_filter_to_xa(int xrender_filter,
+			   enum xa_composite_filter *out_filter)
+{
+   switch (xrender_filter) {
+   case PictFilterConvolution:
+   case PictFilterNearest:
+   case PictFilterFast:
+       *out_filter = xa_filter_nearest;
+      break;
+   case PictFilterBest:
+   case PictFilterGood:
+   case PictFilterBilinear:
+       *out_filter = xa_filter_linear;
+      break;
+   default:
+       *out_filter = xa_filter_nearest;
+       return FALSE;
+   }
+   return TRUE;
+}
+
+static Bool
+vmwgfx_xa_setup_pict(PicturePtr pict,
+		     struct xa_picture *xa_pict,
+		     union xa_source_pict *src_pict)
+{
+    if (!pict)
+	return FALSE;
+
+    memset(xa_pict, 0, sizeof(*xa_pict));
+
+    xa_pict->pict_format = vmwgfx_xa_format(pict->format);
+    if (xa_pict->pict_format == xa_format_unknown)
+	return FALSE;
+
+    /*
+     * Saa doesn't let drivers accelerate alpha maps.
+     */
+    xa_pict->alpha_map = NULL;
+    xa_pict->component_alpha = pict->componentAlpha;
+
+    xa_pict->has_transform =
+	vmwgfx_matrix_from_pict_transform(pict->transform,
+					  xa_pict->transform);
+
+    xa_pict->wrap = vmwgfx_xa_setup_wrap(pict->repeat,
+					 pict->repeatType);
+
+    (void) vmwgfx_render_filter_to_xa(pict->filter, &xa_pict->filter);
+
+    if (pict->pSourcePict) {
+	if (pict->pSourcePict->type != SourcePictTypeSolidFill)
+	    return FALSE;
+
+	src_pict->type = xa_src_pict_solid_fill;
+	src_pict->solid_fill.color = pict->pSourcePict->solidFill.color;
+	xa_pict->src_pict = src_pict;
+    }
+
+    return TRUE;
+}
+
+struct xa_composite *
+vmwgfx_xa_setup_comp(struct vmwgfx_composite *vcomp,
+		     int op,
+		     PicturePtr src_pict,
+		     PicturePtr mask_pict,
+		     PicturePtr dst_pict)
+{
+    struct xa_composite *comp = vcomp->comp;
+
+    if (op >= vmwgfx_op_map_size)
+	return NULL;
+
+    comp->op = vmwgfx_op_map[op];
+    if (comp->op == xa_op_clear && op != PictOpClear)
+	return NULL;
+
+    if (!vmwgfx_xa_setup_pict(dst_pict, vcomp->dst_pict,
+			      vcomp->dst_spict))
+	return NULL;
+    if (!vmwgfx_xa_setup_pict(src_pict, vcomp->src_pict,
+			      vcomp->src_spict))
+	return NULL;
+    if (mask_pict && !vmwgfx_xa_setup_pict(mask_pict,
+					   vcomp->mask_pict,
+					   vcomp->mask_spict))
+	return NULL;
+
+    comp->dst = vcomp->dst_pict;
+    comp->src = vcomp->src_pict;
+    comp->mask = (mask_pict) ? vcomp->mask_pict : NULL;
+
+    return comp;
+}
+
+Bool
+vmwgfx_xa_update_comp(struct xa_composite *comp,
+		      PixmapPtr src_pix,
+		      PixmapPtr mask_pix,
+		      PixmapPtr dst_pix)
+{
+    comp->dst->srf = vmwgfx_saa_pixmap(dst_pix)->hw;
+    if (src_pix)
+	comp->src->srf = vmwgfx_saa_pixmap(src_pix)->hw;
+    if (mask_pix && comp->mask)
+	comp->mask->srf = vmwgfx_saa_pixmap(mask_pix)->hw;
+    return TRUE;
+}
+
+
+void
+vmwgfx_free_composite(struct vmwgfx_composite *vcomp)
+{
+    if (!vcomp)
+	return;
+
+    if (vcomp->src_spict)
+	free(vcomp->src_spict);
+    if (vcomp->mask_spict)
+	free(vcomp->mask_spict);
+    if (vcomp->dst_spict)
+	free(vcomp->dst_spict);
+    if (vcomp->src_pict)
+	free(vcomp->src_pict);
+    if (vcomp->mask_pict)
+	free(vcomp->mask_pict);
+    if (vcomp->dst_pict)
+	free(vcomp->dst_pict);
+    if (vcomp->comp)
+	free(vcomp->comp);
+    free(vcomp);
+}
+
+struct vmwgfx_composite *
+vmwgfx_alloc_composite(void)
+{
+    const struct xa_composite_allocation *a = xa_composite_allocation();
+    struct vmwgfx_composite *vcomp = calloc(1, sizeof(*vcomp));
+
+    if (!vcomp)
+	return NULL;
+
+    vcomp->src_spict = calloc(1, a->xa_source_pict_size);
+    vcomp->mask_spict = calloc(1, a->xa_source_pict_size);
+    vcomp->dst_spict = calloc(1, a->xa_source_pict_size);
+    vcomp->src_pict = calloc(1, a->xa_picture_size);
+    vcomp->mask_pict = calloc(1, a->xa_picture_size);
+    vcomp->dst_pict = calloc(1, a->xa_picture_size);
+    vcomp->comp = calloc(1, a->xa_composite_size);
+
+    if (!vcomp->src_spict || !vcomp->mask_spict || !vcomp->dst_spict ||
+	!vcomp->src_pict || !vcomp->mask_pict || !vcomp->dst_pict ||
+	!vcomp->comp) {
+	vmwgfx_free_composite(vcomp);
+	return NULL;
+    }
+
+    return vcomp;
+}