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* Copyright (c) 2008-2009 Intel Corporation. All Rights Reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "loadsurface_yuv.h"
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static int scale_2dimage(unsigned char *src_img, int src_imgw, int src_imgh,
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unsigned char *dst_img, int dst_imgw, int dst_imgh)
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for (row=0; row<dst_imgh; row++) {
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for (col=0; col<dst_imgw; col++) {
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*(dst_img + row * dst_imgw + col) = *(src_img + (row * src_imgh/dst_imgh) * src_imgw + col * src_imgw/dst_imgw);
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static int YUV_blend_with_pic(int width, int height,
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unsigned char *Y_start, int Y_pitch,
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unsigned char *U_start, int U_pitch,
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unsigned char *V_start, int V_pitch,
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unsigned int fourcc, int fixed_alpha)
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unsigned char *pic_y_old = yuvga_pic;
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unsigned char *pic_u_old = pic_y_old + 640*480;
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unsigned char *pic_v_old = pic_u_old + 640*480/4;
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unsigned char *pic_y, *pic_u, *pic_v;
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int alpha_values[] = {100,90,80,70,60,50,40,30,20,30,40,50,60,70,80,90};
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static int alpha_idx = 0;
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if (fixed_alpha == 0) {
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alpha = alpha_values[alpha_idx % 16 ];
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if (width != 640 || height != 480) { /* need to scale the pic */
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pic_y = (unsigned char *)malloc(width * height);
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printf("Failed to allocate memory for pic_y\n");
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pic_u = (unsigned char *)malloc(width * height/4);
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printf("Failed to allocate memory for pic_u\n");
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pic_v = (unsigned char *)malloc(width * height/4);
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printf("Failed to allocate memory for pic_v\n");
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memset(pic_y, 0, width * height);
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memset(pic_u, 0, width * height /4);
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memset(pic_v, 0, width * height /4);
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scale_2dimage(pic_y_old, 640, 480,
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pic_y, width, height);
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scale_2dimage(pic_u_old, 320, 240,
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pic_u, width/2, height/2);
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scale_2dimage(pic_v_old, 320, 240,
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pic_v, width/2, height/2);
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int Y_pixel_stride = 1;
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if (fourcc == VA_FOURCC_YUY2)
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for (row=0; row<height; row++) {
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unsigned char *p = Y_start + row * Y_pitch;
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unsigned char *q = pic_y + row * width;
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for (col=0; col<width; col++, q++) {
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*p = *p * (100 - alpha) / 100 + *q * alpha/100;
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int U_pixel_stride = 0, V_pixel_stride = 0;
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int v_factor_to_nv12 = 1;
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U_pixel_stride = V_pixel_stride = 1;
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U_pixel_stride = V_pixel_stride = 2;
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U_pixel_stride = V_pixel_stride = 4;
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v_factor_to_nv12 = 2;
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for (row=0; row<height/2*v_factor_to_nv12; row++) {
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unsigned char *pU = U_start + row * U_pitch;
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unsigned char *pV = V_start + row * V_pitch;
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unsigned char *qU = pic_u + row/v_factor_to_nv12 * width/2;
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unsigned char *qV = pic_v + row/v_factor_to_nv12 * width/2;
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for (col=0; col<width/2; col++, qU++, qV++) {
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*pU = *pU * (100 - alpha) / 100 + *qU * alpha/100;
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*pV = *pV * (100 - alpha) / 100 + *qV * alpha/100;
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pU += U_pixel_stride;
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pV += V_pixel_stride;
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static int yuvgen_planar(int width, int height,
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unsigned char *Y_start, int Y_pitch,
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unsigned char *U_start, int U_pitch,
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unsigned char *V_start, int V_pitch,
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unsigned int fourcc, int box_width, int row_shift,
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unsigned char uv_value = 0x80;
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if (fourcc == VA_FOURCC_YUY2) y_factor = 2;
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for (row=0;row<height;row++) {
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unsigned char *Y_row = Y_start + row * Y_pitch;
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ypos = (row / box_width) & 0x1;
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/* fill garbage data into the other field */
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if (((field == VA_TOP_FIELD) && (row &1))
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|| ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
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memset(Y_row, 0xff, width);
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for (jj=0; jj<width; jj++) {
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xpos = ((row_shift + jj) / box_width) & 0x1;
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Y_row[jj*y_factor] = 0xeb;
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Y_row[jj*y_factor] = 0x10;
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if (fourcc == VA_FOURCC_YUY2) {
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Y_row[jj*y_factor+1] = uv_value; // it is for UV
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for( row =0; row < height/2; row++) {
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/* fill garbage data into the other field */
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if (((field == VA_TOP_FIELD) && (row &1))
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|| ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) {
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unsigned char *U_row = U_start + row * U_pitch;
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unsigned char *V_row = V_start + row * V_pitch;
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memset(U_row, uv_value, width);
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memset (U_row,uv_value,width/2);
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memset (V_row,uv_value,width/2);
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// see above. it is set with Y update.
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printf("unsupported fourcc in loadsurface.h\n");
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if (getenv("AUTO_NOUV"))
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if (getenv("AUTO_ALPHA"))
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YUV_blend_with_pic(width,height,
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static int upload_surface(VADisplay va_dpy, VASurfaceID surface_id,
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int box_width, int row_shift,
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VAImage surface_image;
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void *surface_p=NULL, *U_start = NULL,*V_start = NULL;
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unsigned int pitches[3]={0,0,0};
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va_status = vaDeriveImage(va_dpy,surface_id,&surface_image);
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CHECK_VASTATUS(va_status,"vaDeriveImage");
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vaMapBuffer(va_dpy,surface_image.buf,&surface_p);
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assert(VA_STATUS_SUCCESS == va_status);
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pitches[0] = surface_image.pitches[0];
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switch (surface_image.format.fourcc) {
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U_start = (char *)surface_p + surface_image.offsets[1];
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V_start = (char *)U_start + 1;
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pitches[1] = surface_image.pitches[1];
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pitches[2] = surface_image.pitches[1];
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U_start = (char *)surface_p + surface_image.offsets[1];
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V_start = (char *)surface_p + surface_image.offsets[2];
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pitches[1] = surface_image.pitches[1];
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pitches[2] = surface_image.pitches[2];
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U_start = (char *)surface_p + surface_image.offsets[2];
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V_start = (char *)surface_p + surface_image.offsets[1];
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pitches[1] = surface_image.pitches[2];
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pitches[2] = surface_image.pitches[1];
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U_start = (char *)surface_p + 1;
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V_start = (char *)surface_p + 3;
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pitches[1] = surface_image.pitches[0];
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pitches[2] = surface_image.pitches[0];
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/* assume surface is planar format */
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yuvgen_planar(surface_image.width, surface_image.height,
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(unsigned char *)surface_p, pitches[0],
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(unsigned char *)U_start, pitches[1],
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(unsigned char *)V_start, pitches[2],
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surface_image.format.fourcc,
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box_width, row_shift, field);
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vaUnmapBuffer(va_dpy,surface_image.buf);
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vaDestroyImage(va_dpy,surface_image.image_id);
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* Upload YUV data from memory into a surface
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* if src_fourcc == NV12, assume the buffer pointed by src_U
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* is UV interleaved (src_V is ignored)
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static int upload_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id,
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int src_fourcc, int src_width, int src_height,
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unsigned char *src_Y, unsigned char *src_U, unsigned char *src_V)
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VAImage surface_image;
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unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL;
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int Y_pitch=0, U_pitch=0, row;
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va_status = vaDeriveImage(va_dpy,surface_id, &surface_image);
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CHECK_VASTATUS(va_status,"vaDeriveImage");
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vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p);
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assert(VA_STATUS_SUCCESS == va_status);
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Y_pitch = surface_image.pitches[0];
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switch (surface_image.format.fourcc) {
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U_start = (unsigned char *)surface_p + surface_image.offsets[1];
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U_pitch = surface_image.pitches[1];
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U_start = (unsigned char *)surface_p + surface_image.offsets[1];
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U_pitch = surface_image.pitches[1];
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U_start = (unsigned char *)surface_p + surface_image.offsets[2];
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U_pitch = surface_image.pitches[2];
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U_start = surface_p + 1;
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U_pitch = surface_image.pitches[0];
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for (row=0;row<src_height;row++) {
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unsigned char *Y_row = Y_start + row * Y_pitch;
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memcpy(Y_row, src_Y + row*src_width, src_width);
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for (row =0; row < src_height/2; row++) {
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unsigned char *U_row = U_start + row * U_pitch;
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unsigned char *u_ptr = NULL, *v_ptr=NULL;
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switch (surface_image.format.fourcc) {
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if (src_fourcc == VA_FOURCC_NV12) {
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memcpy(U_row, src_U + row * src_width, src_width);
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} else if (src_fourcc == VA_FOURCC_IYUV) {
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u_ptr = src_U + row * (src_width/2);
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v_ptr = src_V + row * (src_width/2);
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} else if (src_fourcc == VA_FOURCC_YV12) {
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v_ptr = src_U + row * (src_width/2);
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u_ptr = src_V + row * (src_width/2);
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if ((src_fourcc == VA_FOURCC_IYUV) ||
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(src_fourcc == VA_FOURCC_YV12)) {
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for(j = 0; j < src_width/2; j++) {
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U_row[2*j] = u_ptr[j];
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U_row[2*j+1] = v_ptr[j];
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printf("unsupported fourcc in load_surface_yuv\n");
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vaUnmapBuffer(va_dpy,surface_image.buf);
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vaDestroyImage(va_dpy,surface_image.image_id);
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* Download YUV data from a surface into memory
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* Some hardward doesn't have a aperture for linear access of
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* tiled surface, thus use vaGetImage to expect the implemnetion
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* to do tile to linear convert
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* if dst_fourcc == NV12, assume the buffer pointed by dst_U
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* is UV interleaved (src_V is ignored)
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static int download_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id,
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int dst_fourcc, int dst_width, int dst_height,
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unsigned char *dst_Y, unsigned char *dst_U, unsigned char *dst_V)
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VAImage surface_image;
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unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL;
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int Y_pitch=0, U_pitch=0, row;
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va_status = vaDeriveImage(va_dpy,surface_id, &surface_image);
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CHECK_VASTATUS(va_status,"vaDeriveImage");
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vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p);
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assert(VA_STATUS_SUCCESS == va_status);
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Y_pitch = surface_image.pitches[0];
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switch (surface_image.format.fourcc) {
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U_start = (unsigned char *)surface_p + surface_image.offsets[1];
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U_pitch = surface_image.pitches[1];
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U_start = (unsigned char *)surface_p + surface_image.offsets[1];
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U_pitch = surface_image.pitches[1];
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U_start = (unsigned char *)surface_p + surface_image.offsets[2];
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U_pitch = surface_image.pitches[2];
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U_start = surface_p + 1;
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U_pitch = surface_image.pitches[0];
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for (row=0;row<dst_height;row++) {
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unsigned char *Y_row = Y_start + row * Y_pitch;
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memcpy(dst_Y + row*dst_width, Y_row, dst_width);
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for (row =0; row < dst_height/2; row++) {
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unsigned char *U_row = U_start + row * U_pitch;
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unsigned char *u_ptr = NULL, *v_ptr = NULL;
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switch (surface_image.format.fourcc) {
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if (dst_fourcc == VA_FOURCC_NV12) {
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memcpy(dst_U + row * dst_width, U_row, dst_width);
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} else if (dst_fourcc == VA_FOURCC_IYUV) {
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u_ptr = dst_U + row * (dst_width/2);
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v_ptr = dst_V + row * (dst_width/2);
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} else if (dst_fourcc == VA_FOURCC_YV12) {
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v_ptr = dst_U + row * (dst_width/2);
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u_ptr = dst_V + row * (dst_width/2);
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if ((dst_fourcc == VA_FOURCC_IYUV) ||
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(dst_fourcc == VA_FOURCC_YV12)) {
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for(j = 0; j < dst_width/2; j++) {
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u_ptr[j] = U_row[2*j];
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v_ptr[j] = U_row[2*j+1];
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printf("unsupported fourcc in load_surface_yuv\n");
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vaUnmapBuffer(va_dpy,surface_image.buf);
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vaDestroyImage(va_dpy,surface_image.image_id);
added
removed
test/loadsurface.h
