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/*
* Copyright (c) 2008-2009 Intel Corporation. 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 PRECISION INSIGHT 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.
*/
static int yuvgen_planar(int width, int height,
unsigned char *Y_start, int Y_pitch,
unsigned char *U_start, int U_pitch,
unsigned char *V_start, int V_pitch,
int UV_interleave, int box_width, int row_shift,
int field)
{
int row;
/* copy Y plane */
for (row=0;row<height;row++) {
unsigned char *Y_row = Y_start + row * Y_pitch;
int jj, xpos, ypos;
ypos = (row / box_width) & 0x1;
/* fill garbage data into the other field */
if (((field == VA_TOP_FIELD) && (row &1))
|| ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
memset(Y_row, 0xff, width);
continue;
}
for (jj=0; jj<width; jj++) {
xpos = ((row_shift + jj) / box_width) & 0x1;
if ((xpos == 0) && (ypos == 0))
Y_row[jj] = 0xeb;
if ((xpos == 1) && (ypos == 1))
Y_row[jj] = 0xeb;
if ((xpos == 1) && (ypos == 0))
Y_row[jj] = 0x10;
if ((xpos == 0) && (ypos == 1))
Y_row[jj] = 0x10;
}
}
/* copy UV data */
for( row =0; row < height/2; row++) {
unsigned short value = 0x80;
/* fill garbage data into the other field */
if (((field == VA_TOP_FIELD) && (row &1))
|| ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
value = 0xff;
}
if (UV_interleave) {
unsigned short *UV_row = (unsigned short *)(U_start + row * U_pitch);
memset(UV_row, value, width);
} else {
unsigned char *U_row = U_start + row * U_pitch;
unsigned char *V_row = V_start + row * V_pitch;
memset (U_row,value,width/2);
memset (V_row,value,width/2);
}
}
return 0;
}
static int upload_surface(VADisplay va_dpy, VASurfaceID surface_id,
int box_width, int row_shift,
int field)
{
VAImage surface_image;
void *surface_p=NULL, *U_start,*V_start;
VAStatus va_status;
va_status = vaDeriveImage(va_dpy,surface_id,&surface_image);
CHECK_VASTATUS(va_status,"vaDeriveImage");
vaMapBuffer(va_dpy,surface_image.buf,&surface_p);
assert(VA_STATUS_SUCCESS == va_status);
U_start = surface_p + surface_image.offsets[1];
V_start = surface_p + surface_image.offsets[2];
/* assume surface is planar format */
yuvgen_planar(surface_image.width, surface_image.height,
surface_p, surface_image.pitches[0],
U_start, surface_image.pitches[1],
V_start, surface_image.pitches[2],
(surface_image.format.fourcc==VA_FOURCC_NV12),
box_width, row_shift, field);
vaUnmapBuffer(va_dpy,surface_image.buf);
vaDestroyImage(va_dpy,surface_image.image_id);
return 0;
}
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