#include "loadsurface_yuv.h"
static int scale_2dimage(unsigned char *src_img, int src_imgw, int src_imgh,
- unsigned char *dst_img, int dst_imgw, int dst_imgh)
+ unsigned char *dst_img, int dst_imgw, int dst_imgh)
{
int row=0, col=0;
static int YUV_blend_with_pic(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,
- unsigned int fourcc, int fixed_alpha)
+ unsigned char *Y_start, int Y_pitch,
+ unsigned char *U_start, int U_pitch,
+ unsigned char *V_start, int V_pitch,
+ unsigned int fourcc, int fixed_alpha)
{
/* PIC YUV format */
unsigned char *pic_y_old = yuvga_pic;
if (width != 640 || height != 480) { /* need to scale the pic */
pic_y = (unsigned char *)malloc(width * height);
+ if(pic_y == NULL) {
+ printf("Failed to allocate memory for pic_y\n");
+ return -1;
+ }
+
pic_u = (unsigned char *)malloc(width * height/4);
- pic_v = (unsigned char *)malloc(width * height/4);
+ if(pic_u == NULL) {
+ printf("Failed to allocate memory for pic_u\n");
+ free(pic_y);
+ return -1;
+ }
+ pic_v = (unsigned char *)malloc(width * height/4);
+ if(pic_v == NULL) {
+ printf("Failed to allocate memory for pic_v\n");
+ free(pic_y);
+ free(pic_u);
+ return -1;
+ }
allocated = 1;
+
+ memset(pic_y, 0, width * height);
+ memset(pic_u, 0, width * height /4);
+ memset(pic_v, 0, width * height /4);
scale_2dimage(pic_y_old, 640, 480,
pic_y, width, height);
}
}
-
if (allocated) {
free(pic_y);
free(pic_u);
/* copy Y plane */
int y_factor = 1;
- if (fourcc == VA_FOURCC_YUY2) y_factor = 2;
+ if (fourcc == VA_FOURCC_YUY2) y_factor = 2;
for (row=0;row<height;row++) {
unsigned char *Y_row = Y_start + row * Y_pitch;
int jj, xpos, ypos;
if (fourcc == VA_FOURCC_YUY2) {
Y_row[jj*y_factor+1] = uv_value; // it is for UV
- }
+ }
}
}
switch (fourcc) {
case VA_FOURCC_NV12:
memset(U_row, uv_value, width);
- break;
+ break;
case VA_FOURCC_YV12:
memset (U_row,uv_value,width/2);
memset (V_row,uv_value,width/2);
- break;
+ break;
case VA_FOURCC_YUY2:
// see above. it is set with Y update.
break;
return 0;
}
+
+/*
+ * Upload YUV data from memory into a surface
+ * if src_fourcc == NV12, assume the buffer pointed by src_U
+ * is UV interleaved (src_V is ignored)
+ */
+static int upload_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id,
+ int src_fourcc, int src_width, int src_height,
+ unsigned char *src_Y, unsigned char *src_U, unsigned char *src_V)
+{
+ VAImage surface_image;
+ unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL;
+ int Y_pitch=0, U_pitch=0, row;
+ VAStatus va_status;
+
+ va_status = vaDeriveImage(va_dpy,surface_id, &surface_image);
+ CHECK_VASTATUS(va_status,"vaDeriveImage");
+
+ vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p);
+ assert(VA_STATUS_SUCCESS == va_status);
+
+ Y_start = surface_p;
+ Y_pitch = surface_image.pitches[0];
+ switch (surface_image.format.fourcc) {
+ case VA_FOURCC_NV12:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[1];
+ U_pitch = surface_image.pitches[1];
+ break;
+ case VA_FOURCC_IYUV:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[1];
+ U_pitch = surface_image.pitches[1];
+ break;
+ case VA_FOURCC_YV12:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[2];
+ U_pitch = surface_image.pitches[2];
+ break;
+ case VA_FOURCC_YUY2:
+ U_start = surface_p + 1;
+ U_pitch = surface_image.pitches[0];
+ break;
+ default:
+ assert(0);
+ }
+
+ /* copy Y plane */
+ for (row=0;row<src_height;row++) {
+ unsigned char *Y_row = Y_start + row * Y_pitch;
+ memcpy(Y_row, src_Y + row*src_width, src_width);
+ }
+
+ for (row =0; row < src_height/2; row++) {
+ unsigned char *U_row = U_start + row * U_pitch;
+ unsigned char *u_ptr = NULL, *v_ptr=NULL;
+ int j;
+ switch (surface_image.format.fourcc) {
+ case VA_FOURCC_NV12:
+ if (src_fourcc == VA_FOURCC_NV12) {
+ memcpy(U_row, src_U + row * src_width, src_width);
+ break;
+ } else if (src_fourcc == VA_FOURCC_IYUV) {
+ u_ptr = src_U + row * (src_width/2);
+ v_ptr = src_V + row * (src_width/2);
+ } else if (src_fourcc == VA_FOURCC_YV12) {
+ v_ptr = src_U + row * (src_width/2);
+ u_ptr = src_V + row * (src_width/2);
+ }
+ if ((src_fourcc == VA_FOURCC_IYUV) ||
+ (src_fourcc == VA_FOURCC_YV12)) {
+ for(j = 0; j < src_width/2; j++) {
+ U_row[2*j] = u_ptr[j];
+ U_row[2*j+1] = v_ptr[j];
+ }
+ }
+ break;
+ case VA_FOURCC_IYUV:
+ case VA_FOURCC_YV12:
+ case VA_FOURCC_YUY2:
+ default:
+ printf("unsupported fourcc in load_surface_yuv\n");
+ assert(0);
+ }
+ }
+
+ vaUnmapBuffer(va_dpy,surface_image.buf);
+
+ vaDestroyImage(va_dpy,surface_image.image_id);
+
+ return 0;
+}
+
+/*
+ * Download YUV data from a surface into memory
+ * Some hardward doesn't have a aperture for linear access of
+ * tiled surface, thus use vaGetImage to expect the implemnetion
+ * to do tile to linear convert
+ *
+ * if dst_fourcc == NV12, assume the buffer pointed by dst_U
+ * is UV interleaved (src_V is ignored)
+ */
+static int download_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id,
+ int dst_fourcc, int dst_width, int dst_height,
+ unsigned char *dst_Y, unsigned char *dst_U, unsigned char *dst_V)
+{
+ VAImage surface_image;
+ unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL;
+ int Y_pitch=0, U_pitch=0, row;
+ VAStatus va_status;
+
+ va_status = vaDeriveImage(va_dpy,surface_id, &surface_image);
+ CHECK_VASTATUS(va_status,"vaDeriveImage");
+
+ vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p);
+ assert(VA_STATUS_SUCCESS == va_status);
+
+ Y_start = surface_p;
+ Y_pitch = surface_image.pitches[0];
+ switch (surface_image.format.fourcc) {
+ case VA_FOURCC_NV12:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[1];
+ U_pitch = surface_image.pitches[1];
+ break;
+ case VA_FOURCC_IYUV:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[1];
+ U_pitch = surface_image.pitches[1];
+ break;
+ case VA_FOURCC_YV12:
+ U_start = (unsigned char *)surface_p + surface_image.offsets[2];
+ U_pitch = surface_image.pitches[2];
+ break;
+ case VA_FOURCC_YUY2:
+ U_start = surface_p + 1;
+ U_pitch = surface_image.pitches[0];
+ break;
+ default:
+ assert(0);
+ }
+
+ /* copy Y plane */
+ for (row=0;row<dst_height;row++) {
+ unsigned char *Y_row = Y_start + row * Y_pitch;
+ memcpy(dst_Y + row*dst_width, Y_row, dst_width);
+ }
+
+ for (row =0; row < dst_height/2; row++) {
+ unsigned char *U_row = U_start + row * U_pitch;
+ unsigned char *u_ptr = NULL, *v_ptr = NULL;
+ int j;
+ switch (surface_image.format.fourcc) {
+ case VA_FOURCC_NV12:
+ if (dst_fourcc == VA_FOURCC_NV12) {
+ memcpy(dst_U + row * dst_width, U_row, dst_width);
+ break;
+ } else if (dst_fourcc == VA_FOURCC_IYUV) {
+ u_ptr = dst_U + row * (dst_width/2);
+ v_ptr = dst_V + row * (dst_width/2);
+ } else if (dst_fourcc == VA_FOURCC_YV12) {
+ v_ptr = dst_U + row * (dst_width/2);
+ u_ptr = dst_V + row * (dst_width/2);
+ }
+ if ((dst_fourcc == VA_FOURCC_IYUV) ||
+ (dst_fourcc == VA_FOURCC_YV12)) {
+ for(j = 0; j < dst_width/2; j++) {
+ u_ptr[j] = U_row[2*j];
+ v_ptr[j] = U_row[2*j+1];
+ }
+ }
+ break;
+ case VA_FOURCC_IYUV:
+ case VA_FOURCC_YV12:
+ case VA_FOURCC_YUY2:
+ default:
+ printf("unsupported fourcc in load_surface_yuv\n");
+ assert(0);
+ }
+ }
+
+ vaUnmapBuffer(va_dpy,surface_image.buf);
+
+ vaDestroyImage(va_dpy,surface_image.image_id);
+
+ return 0;
+}
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