initial stuff. comments welcomed...

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4186 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 68 insertions, 0 deletions

diff --git a/mp_image.h b/mp_image.h
new file mode 100644
index 0000000000..b876c29c72
--- /dev/null
+++ b/mp_image.h
@@ -0,0 +1,68 @@
+
+// set if it's internal buffer of the codec, and shouldn't be modified:
+#define MP_IMGFLAG_READONLY 0x01
+// set if buffer is allocated (used in destination images):
+#define MP_IMGFLAG_ALLOCATED 0x02
+// set if it's in video buffer/memory:
+#define MP_IMGFLAG_DIRECT 0x04
+
+// set if number of planes > 1
+#define MP_IMGFLAG_PLANAR 0x10
+// set if it's YUV colorspace
+#define MP_IMGFLAG_YUV 0x20
+// set if it's swapped plane/byteorder
+#define MP_IMGFLAG_SWAPPED 0x40
+
+typedef struct mp_image_s {
+    unsigned short flags;
+    unsigned short bpp;
+    unsigned int imgfmt;
+    int width,height;  // stored dimensions
+    int x,y,w,h;  // visible dimensions
+    unsigned char* planes[3];
+    unsigned int stride[3];
+    int* qscale;
+    int qstride;
+} mp_image_t;
+
+#ifdef IMGFMT_YUY2
+static inline void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){
+    mpi->flags&=~(MP_IMGFLAG_PLANAR|MP_IMGFLAG_YUV|MP_IMGFLAG_SWAPPED);
+    mpi->out_fmt=out_fmt;
+    if( (out_fmt&IMGFMT_RGB_MASK) == IMGFMT_RGB ){
+	mpi->bpp=out_fmt&255;
+	return;
+    }
+    if( (out_fmt&IMGFMT_BGR_MASK) == IMGFMT_BGR ){
+	mpi->bpp=out_fmt&255;
+	mpi->flags|=MP_IMGFLAG_SWAPPED;
+	return;
+    }
+    mpi->flags|=MP_IMGFLAG_YUV;
+    switch(out_fmt){
+    case IMGFMT_I420:
+    case IMGFMT_IYUV:
+	mpi->flags|=MP_IMGFLAG_SWAPPED;
+    case IMGFMT_YV12:
+	mpi->flags|=MP_IMGFLAG_PLANAR;
+	mpi->bpp=12;
+	return;
+    case IMGFMT_UYVY:
+	mpi->flags|=MP_IMGFLAG_SWAPPED;
+    case IMGFMT_YUY2:
+	mpi->bpp=16;
+	return;
+    }
+    printf("mp_image: Unknown out_fmt: 0x%X\n",out_fmt);
+    mpi->bpp=0;
+}
+#endif
+
+static inline mp_image_t* new_mp_image(int w,int h){
+    mp_image_t* mpi=malloc(sizeof(mp_image_t));
+    if(!mpi) return NULL; // error!
+    memset(mpi,0,sizeof(mp_image_t));
+    mpi->width=mpi->w=w;
+    mpi->height=mpi->h=h;
+    return mpi;
+}