Mesa (master): nv30: hook up PMPEG support via nouveau_video, enables XvMC to work

[Maarten Lankhorst]

Module: Mesa
Branch: master
Commit: ee3ca3614ee55ed42bd8f78c62b7eaabb2a0fbe2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ee3ca3614ee55ed42bd8f78c62b7eaabb2a0fbe2

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Tue Jul  2 17:33:41 2013 -0400

nv30: hook up PMPEG support via nouveau_video, enables XvMC to work

Force the format to be the reasonable format that doesn't require an
inverse z-scan.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>

---

 src/gallium/drivers/nouveau/nouveau_video.c |   27 ++++++++++++---------------
 src/gallium/drivers/nv30/nv30_context.c     |    2 ++
 src/gallium/drivers/nv30/nv30_screen.c      |    1 +
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/gallium/drivers/nouveau/nouveau_video.c b/src/gallium/drivers/nouveau/nouveau_video.c
index 5377872..0fdc3ce 100644
--- a/src/gallium/drivers/nouveau/nouveau_video.c
+++ b/src/gallium/drivers/nouveau/nouveau_video.c
@@ -108,21 +108,10 @@ nouveau_vpe_mb_dct_blocks(struct nouveau_decoder *dec, const struct pipe_mpeg12_
    short *db = mb->blocks;
    for (cbb = 0x20; cbb > 0; cbb >>= 1) {
       if (cbb & cbp) {
-         static const int lookup[64] = {
-             0, 1, 8,16, 9, 2, 3,10,
-            17,24,32,25,18,11, 4, 5,
-            12,19,26,33,40,48,41,34,
-            27,20,13, 6, 7,14,21,28,
-            35,42,49,56,57,50,43,36,
-            29,22,15,23,30,37,44,51,
-            58,59,52,45,38,31,39,46,
-            53,60,61,54,47,55,62,63
-         };
-         int i, j = 0, found = 0;
+         int i, found = 0;
          for (i = 0; i < 64; ++i) {
-            if (!db[lookup[i]]) { j += 2; continue; }
-            dec->data[dec->data_pos++] = (db[lookup[i]] << 16) | j;
-            j = 0;
+            if (!db[i]) continue;
+            dec->data[dec->data_pos++] = (db[i] << 16) | (i * 2);
             found = 1;
          }
          if (found)
@@ -443,6 +432,11 @@ nouveau_decoder_decode_macroblock(struct pipe_video_decoder *decoder,
       dec->past = nouveau_decoder_surface_index(dec, desc->ref[0]);
 
    if (nouveau_vpe_init(dec)) return;
+
+   /* initialize scan order */
+   nouveau_vpe_write(dec, 0x720000c0);
+   nouveau_vpe_write(dec, dec->data_pos);
+
    mb = (const struct pipe_mpeg12_macroblock *)pipe_mb;
    for (i = 0; i < num_macroblocks; ++i, mb++) {
       if (mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) {
@@ -528,6 +522,8 @@ nouveau_create_decoder(struct pipe_context *context,
       goto vl;
    if (screen->device->chipset >= 0x98 && screen->device->chipset != 0xa0)
       goto vl;
+   if (screen->device->chipset < 0x31 || screen->device->chipset == 0x35)
+      goto vl;
 
    dec = CALLOC_STRUCT(nouveau_decoder);
    if (!dec)
@@ -793,7 +789,8 @@ nouveau_video_buffer_create(struct pipe_context *pipe,
     * and it only supports the NV12 format
     */
    if (templat->buffer_format != PIPE_FORMAT_NV12 || getenv("XVMC_VL") ||
-       (screen->device->chipset >= 0x98 && screen->device->chipset != 0xa0))
+       (screen->device->chipset >= 0x98 && screen->device->chipset != 0xa0) ||
+       screen->device->chipset < 0x31 || screen->device->chipset == 0x35)
       return vl_video_buffer_create(pipe, templat);
 
    assert(templat->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420);
diff --git a/src/gallium/drivers/nv30/nv30_context.c b/src/gallium/drivers/nv30/nv30_context.c
index bd05042..e872c02 100644
--- a/src/gallium/drivers/nv30/nv30_context.c
+++ b/src/gallium/drivers/nv30/nv30_context.c
@@ -257,5 +257,7 @@ nv30_context_create(struct pipe_screen *pscreen, void *priv)
       return NULL;
    }
 
+   nouveau_context_init_vdec(&nv30->base);
+
    return pipe;
 }
diff --git a/src/gallium/drivers/nv30/nv30_screen.c b/src/gallium/drivers/nv30/nv30_screen.c
index 3d55d6f..40e8b5f 100644
--- a/src/gallium/drivers/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nv30/nv30_screen.c
@@ -377,6 +377,7 @@ nv30_screen_create(struct nouveau_device *dev)
    pscreen->context_create = nv30_context_create;
    pscreen->is_format_supported = nv30_screen_is_format_supported;
    nv30_resource_screen_init(pscreen);
+   nouveau_screen_init_vdec(&screen->base);
 
    screen->base.fence.emit = nv30_screen_fence_emit;
    screen->base.fence.update = nv30_screen_fence_update;