OpenVG 1.0 State Tracker

Import of the OpenVG 1.0 state tracker for Gallium.

1 files changed, 1030 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/vega/vg_translate.c b/src/gallium/state_trackers/vega/vg_translate.c
new file mode 100644
index 00000000000..00e07647062
--- /dev/null
+++ b/src/gallium/state_trackers/vega/vg_translate.c
@@ -0,0 +1,1030 @@
+/**************************************************************************
+ *
+ * Copyright 2009 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 VMWARE 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 "vg_translate.h"
+
+#include "pipe/p_format.h"
+#include "util/u_pack_color.h"
+
+void _vega_pack_rgba_span_float(struct vg_context *ctx,
+                                VGuint n, VGfloat rgba[][4],
+                                VGImageFormat dstFormat,
+                                void *dstAddr)
+{
+   VGint i;
+
+   switch (dstFormat) {
+   case VG_sRGBX_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = 255;
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sRGBA_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sRGBA_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sRGB_565: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         r = (r / 255.0) * 32;
+         g = (g / 255.0) * 32;
+         b = (b / 255.0) * 32;
+
+         dst[i] = b | g << 5 | r << 11;
+      }
+      return;
+   }
+      break;
+   case VG_sRGBA_5551: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         r = (r / 255.0) * 32;
+         g = (g / 255.0) * 32;
+         b = (b / 255.0) * 32;
+         a = (a / 255.0);
+
+         dst[i] =  a | b << 1 | g << 6 | r << 11;
+      }
+      return;
+   }
+      break;
+   case VG_sRGBA_4444: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         r = (r / 255.0) * 16;
+         g = (g / 255.0) * 16;
+         b = (b / 255.0) * 16;
+         a = (a / 255.0) * 16;
+
+         dst[i] =  a | b << 4 | g << 8 | r << 12;
+      }
+      return;
+   }
+      break;
+   case VG_sL_8: {
+      VGubyte *dst = (VGubyte *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+
+         dst[i] =  a;
+      }
+      return;
+   }
+      break;
+   case VG_lRGBX_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = 255;
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_lRGBA_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+   case VG_lRGBA_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = r << 24 | g << 16 | b << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_lL_8: {
+      VGubyte *dst = (VGubyte *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a;
+      }
+      return;
+   }
+      break;
+   case VG_A_8: {
+      VGubyte *dst = (VGubyte *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+
+         dst[i] = a;
+      }
+      return;
+   }
+      break;
+   case VG_BW_1: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         VGubyte res;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+
+         res = (r + g + b + a)/4;
+         dst[i] =   (res & (128));
+      }
+      return;
+   }
+      break;
+#ifdef OPENVG_VERSION_1_1
+   case VG_A_1: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+
+         dst[i] =   (a & (128));
+      }
+      return;
+   }
+      break;
+   case VG_A_4: {
+      VGshort *dst = (VGshort *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b, a;
+         VGubyte res;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+
+         res = a/4;
+         dst[i] =   (res & (128));
+      }
+      return;
+   }
+      break;
+#endif
+   case VG_sXRGB_8888:
+      break;
+   case VG_sARGB_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | r << 16 | g << 8 | b;
+      }
+      return;
+   }
+      break;
+   case VG_sARGB_8888_PRE:  {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | r << 16 | g << 8 | b;
+      }
+      return;
+   }
+      break;
+   case VG_sARGB_1555:
+      break;
+   case VG_sARGB_4444:
+      break;
+   case VG_lXRGB_8888:
+      break;
+   case VG_lARGB_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | r << 16 | g << 8 | b;
+      }
+      return;
+   }
+      break;
+   case VG_lARGB_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | r << 16 | g << 8 | b;
+      }
+      return;
+   }
+      break;
+   case VG_sBGRX_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = 0xff;
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sBGRA_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sBGRA_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sBGR_565:
+      break;
+   case VG_sBGRA_5551:
+      break;
+   case VG_sBGRA_4444:
+      break;
+   case VG_lBGRX_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = 0xff;
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_lBGRA_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_lBGRA_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = b << 24 | g << 16 | r << 8 | a;
+      }
+      return;
+   }
+      break;
+   case VG_sXBGR_8888:
+      break;
+   case VG_sABGR_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | b << 16 | g << 8 | r;
+      }
+      return;
+   }
+      break;
+   case VG_sABGR_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | b << 16 | g << 8 | r;
+      }
+      return;
+   }
+      break;
+   case VG_sABGR_1555:
+      break;
+   case VG_sABGR_4444:
+      break;
+   case VG_lXBGR_8888:
+      break;
+   case VG_lABGR_8888: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | b << 16 | g << 8 | r;
+      }
+      return;
+   }
+      break;
+   case VG_lABGR_8888_PRE: {
+      VGint *dst = (VGint *)dstAddr;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = float_to_ubyte(rgba[i][0]);
+         g = float_to_ubyte(rgba[i][1]);
+         b = float_to_ubyte(rgba[i][2]);
+         a = float_to_ubyte(rgba[i][3]);
+         dst[i] = a << 24 | b << 16 | g << 8 | r;
+      }
+      return;
+   }
+      break;
+   default:
+      assert(!"Unknown ReadPixels format");
+      break;
+   }
+   assert(!"Not implemented ReadPixels format");
+}
+
+void _vega_unpack_float_span_rgba(struct vg_context *ctx,
+                                  VGuint n,
+                                  VGuint offset,
+                                  const void * data,
+                                  VGImageFormat dataFormat,
+                                  VGfloat rgba[][4])
+{
+   VGint i;
+
+   switch (dataFormat) {
+   case VG_sRGBX_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_sRGBA_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sRGBA_8888_PRE: {
+      VGint *src = (VGint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sRGB_565: {
+      VGshort *src = (VGshort *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGfloat clr[4];
+         clr[0] = ((*src >> 10) & 31)/31.;
+         clr[1] = ((*src >>  5) & 95)/95.;
+         clr[2] = ((*src >>  0) & 31)/31.;
+         clr[3] = 1.f;
+
+         util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                         rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_sRGBA_5551: {
+      VGshort *src = (VGshort *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGfloat clr[4];
+         clr[0] = ((*src >> 10) & 31)/31.;
+         clr[1] = ((*src >>  5) & 31)/31.;
+         clr[2] = ((*src >>  1) & 31)/31.;
+         clr[3] = ((*src >>  0) & 1)/1.;
+
+         util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                         rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_sRGBA_4444: {
+      VGshort *src = (VGshort *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGfloat clr[4];
+         clr[0] = ((*src >> 12) & 15)/15.;
+         clr[1] = ((*src >>  8) & 15)/15.;
+         clr[2] = ((*src >>  4) & 15)/15.;
+         clr[3] = ((*src >>  0) & 15)/15.;
+
+         util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                         rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_sL_8: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         util_pack_color_ub(0xff, 0xff, 0xff, *src, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                         rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_lRGBX_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_lRGBA_8888: {
+      VGint *src = (VGint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_lRGBA_8888_PRE: {
+      VGint *src = (VGint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         r = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         b = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_lL_8: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         util_pack_color_ub(0xff, 0xff, 0xff, *src, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                         rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_A_8: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         util_pack_color_ub(0xff, 0xff, 0xff, *src, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+   }
+      return;
+   case VG_BW_1: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset;
+      for (i = 0; i < n; i += 8) {
+         VGfloat clr[4];
+         VGint j;
+         for (j = 0; j < 8 && j < n ; ++j) {
+            VGint shift = j;
+            clr[0] = (((*src) & (1<<shift)) >> shift);
+            clr[1] = clr[0];
+            clr[2] = clr[0];
+            clr[3] = 1.f;
+
+            util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i+j]);
+         }
+         ++src;
+      }
+   }
+      return;
+#ifdef OPENVG_VERSION_1_1
+   case VG_A_1: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset;
+      for (i = 0; i < n; i += 8) {
+         VGfloat clr[4];
+         VGint j;
+         for (j = 0; j < 8 && j < n ; ++j) {
+            VGint shift = j;
+            clr[0] = 0.f;
+            clr[1] = 0.f;
+            clr[2] = 0.f;
+            clr[3] = (((*src) & (1<<shift)) >> shift);
+
+            util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i+j]);
+         }
+         ++src;
+      }
+   }
+      return;
+   case VG_A_4: {
+      VGubyte *src = (VGubyte *)data;
+      src += offset/2;
+      for (i = 0; i < n; i += 2) {
+         VGfloat clr[4];
+         VGint j;
+         for (j = 0; j < n && j < 2; ++j) {
+            VGint bitter, shift;
+            if (j == 0) {
+               bitter = 0x0f;
+               shift = 0;
+            } else {
+               bitter = 0xf0;
+               shift = 4;
+            }
+            clr[0] = 0.f;
+            clr[1] = 0.f;
+            clr[2] = 0.f;
+            clr[3] = ((*src) & (bitter)) >> shift;
+
+            util_pack_color(clr, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i +j]);
+         }
+         ++src;
+      }
+   }
+      return;
+#endif
+   case VG_sXRGB_8888:
+      break;
+   case VG_sARGB_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         r = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         b = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sARGB_8888_PRE: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         r = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         b = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sARGB_1555:
+      break;
+   case VG_sARGB_4444:
+      break;
+   case VG_lXRGB_8888:
+      break;
+   case VG_lARGB_8888: {
+      VGint *src = (VGint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         r = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         b = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_lARGB_8888_PRE: {
+      VGint *src = (VGint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         r = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         b = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sBGRX_8888:
+      break;
+   case VG_sBGRA_8888:  {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         b = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         r = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sBGRA_8888_PRE:  {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         b = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         r = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sBGR_565:
+      break;
+   case VG_sBGRA_5551:
+      break;
+   case VG_sBGRA_4444:
+      break;
+   case VG_lBGRX_8888:
+      break;
+   case VG_lBGRA_8888:  {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         b = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         r = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_lBGRA_8888_PRE:  {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         b = (*src >> 24) & 0xff;
+         g = (*src >> 16) & 0xff;
+         r = (*src >>  8) & 0xff;
+         a = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sXBGR_8888:
+      break;
+   case VG_sABGR_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         b = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         r = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sABGR_8888_PRE: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         b = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         r = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_sABGR_1555:
+      break;
+   case VG_sABGR_4444:
+      break;
+   case VG_lXBGR_8888:
+      break;
+   case VG_lABGR_8888: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         b = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         r = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   case VG_lABGR_8888_PRE: {
+      VGuint *src = (VGuint *)data;
+      src += offset;
+      for (i = 0; i < n; ++i) {
+         VGubyte r, g, b ,a;
+         a = (*src >> 24) & 0xff;
+         b = (*src >> 16) & 0xff;
+         g = (*src >>  8) & 0xff;
+         r = (*src >>  0) & 0xff;
+
+         util_pack_color_ub(r, g, b, a, PIPE_FORMAT_R32G32B32A32_FLOAT,
+                            rgba[i]);
+         ++src;
+      }
+      return;
+   }
+      break;
+   default:
+      assert(!"Unknown ReadPixels format");
+      break;
+   }
+   assert(!"Not implemented ReadPixels format");
+}
+
+VGint _vega_size_for_format(VGImageFormat dataFormat)
+{
+   switch (dataFormat) {
+   case VG_sRGBX_8888:
+   case VG_sRGBA_8888:
+   case VG_sRGBA_8888_PRE:
+      return 4;
+   case VG_sRGB_565:
+   case VG_sRGBA_5551:
+   case VG_sRGBA_4444:
+      return 2;
+   case VG_sL_8:
+      return 1;
+   case VG_lRGBX_8888:
+   case VG_lRGBA_8888:
+   case VG_lRGBA_8888_PRE:
+      return 4;
+   case VG_lL_8:
+      return 1;
+   case VG_A_8:
+      return 1;
+   case VG_BW_1:
+      return 1;
+#ifdef OPENVG_VERSION_1_1
+   case VG_A_1:
+      break;
+   case VG_A_4:
+      break;
+#endif
+   case VG_sXRGB_8888:
+   case VG_sARGB_8888:
+   case VG_sARGB_8888_PRE:
+      return 4;
+   case VG_sARGB_1555:
+   case VG_sARGB_4444:
+      return 2;
+   case VG_lXRGB_8888:
+   case VG_lARGB_8888:
+   case VG_lARGB_8888_PRE:
+   case VG_sBGRX_8888:
+   case VG_sBGRA_8888:
+   case VG_sBGRA_8888_PRE:
+      return 4;
+   case VG_sBGR_565:
+   case VG_sBGRA_5551:
+   case VG_sBGRA_4444:
+      return 2;
+   case VG_lBGRX_8888:
+   case VG_lBGRA_8888:
+   case VG_lBGRA_8888_PRE:
+   case VG_sXBGR_8888:
+   case VG_sABGR_8888:
+   case VG_sABGR_8888_PRE:
+      return 4;
+   case VG_sABGR_1555:
+   case VG_sABGR_4444:
+      return 2;
+   case VG_lXBGR_8888:
+   case VG_lABGR_8888:
+   case VG_lABGR_8888_PRE:
+      return 4;
+   default:
+      assert(!"Unknown ReadPixels format");
+      break;
+   }
+   assert(!"Not implemented ReadPixels format");
+   return 0;
+}