radeonsi/video: Remove mpeg12 shader decoder support

This would only be used for IDCT and MC entrypoints, but va/vdpau
frontends doesn't use those.

Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33893>

src/gallium/drivers/radeonsi/radeon_uvd.c

@@ -13,8 +13,8 @@
 #include "radeonsi/si_pipe.h"
 #include "util/u_memory.h"
 #include "util/u_video.h"
+#include "util/vl_zscan_data.h"
 #include "vl/vl_defines.h"
-#include "vl/vl_mpeg12_decoder.h"
 #include <sys/types.h>
 
 #include <assert.h>
@@ -1220,10 +1220,6 @@ struct pipe_video_codec *si_common_uvd_create_decoder(struct pipe_context *conte
 
    switch (u_reduce_video_profile(templ->profile)) {
    case PIPE_VIDEO_FORMAT_MPEG12:
-      if (templ->entrypoint > PIPE_VIDEO_ENTRYPOINT_BITSTREAM)
-         return vl_create_mpeg12_decoder(context, templ);
-
-      FALLTHROUGH;
    case PIPE_VIDEO_FORMAT_MPEG4:
       width = align(width, VL_MACROBLOCK_WIDTH);
       height = align(height, VL_MACROBLOCK_HEIGHT);

src/gallium/drivers/radeonsi/radeon_vcn_dec.c

@@ -12,7 +12,7 @@
 #include "radeonsi/si_pipe.h"
 #include "util/u_memory.h"
 #include "util/u_video.h"
-#include "vl/vl_mpeg12_decoder.h"
+#include "util/vl_zscan_data.h"
 #include "vl/vl_probs_table.h"
 #include "pspdecryptionparam.h"
 
@@ -2737,8 +2737,6 @@ struct pipe_video_codec *radeon_create_decoder(struct pipe_context *context,
 
    switch (u_reduce_video_profile(templ->profile)) {
    case PIPE_VIDEO_FORMAT_MPEG12:
-      if (templ->entrypoint > PIPE_VIDEO_ENTRYPOINT_BITSTREAM)
-         return vl_create_mpeg12_decoder(context, templ);
       stream_type = RDECODE_CODEC_MPEG2_VLD;
       break;
    case PIPE_VIDEO_FORMAT_MPEG4:

src/gallium/drivers/radeonsi/si_get.c

@@ -14,7 +14,6 @@
 #include "util/u_cpu_detect.h"
 #include "util/u_screen.h"
 #include "util/u_video.h"
-#include "vl/vl_decoder.h"
 #include "vl/vl_video_buffer.h"
 #include <sys/utsname.h>
 
@@ -84,33 +83,6 @@ static const char *si_get_name(struct pipe_screen *pscreen)
    return sscreen->renderer_string;
 }
 
-static int si_get_video_param_no_video_hw(struct pipe_screen *screen, enum pipe_video_profile profile,
-                                          enum pipe_video_entrypoint entrypoint,
-                                          enum pipe_video_cap param)
-{
-   switch (param) {
-   case PIPE_VIDEO_CAP_SUPPORTED:
-      return vl_profile_supported(screen, profile, entrypoint);
-   case PIPE_VIDEO_CAP_NPOT_TEXTURES:
-      return 1;
-   case PIPE_VIDEO_CAP_MAX_WIDTH:
-   case PIPE_VIDEO_CAP_MAX_HEIGHT:
-      return vl_video_buffer_max_size(screen);
-   case PIPE_VIDEO_CAP_PREFERRED_FORMAT:
-      return PIPE_FORMAT_NV12;
-   case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
-      return false;
-   case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
-      return false;
-   case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
-      return true;
-   case PIPE_VIDEO_CAP_MAX_LEVEL:
-      return vl_level_supported(screen, profile);
-   default:
-      return 0;
-   }
-}
-
 static int si_get_video_param(struct pipe_screen *screen, enum pipe_video_profile profile,
                               enum pipe_video_entrypoint entrypoint, enum pipe_video_cap param)
 {
@@ -876,9 +848,6 @@ void si_init_screen_get_functions(struct si_screen *sscreen)
       sscreen->b.get_video_param = si_get_video_param;
       sscreen->b.is_video_format_supported = si_vid_is_format_supported;
       sscreen->b.is_video_target_buffer_supported = si_vid_is_target_buffer_supported;
-   } else {
-      sscreen->b.get_video_param = si_get_video_param_no_video_hw;
-      sscreen->b.is_video_format_supported = vl_video_buffer_is_format_supported;
    }
 
    si_init_renderer_string(sscreen);

src/gallium/drivers/radeonsi/si_pipe.c

@@ -22,7 +22,6 @@
 #include "util/u_tests.h"
 #include "util/u_upload_mgr.h"
 #include "util/xmlconfig.h"
-#include "vl/vl_decoder.h"
 #include "si_utrace.h"
 
 #include "aco_interface.h"
@@ -744,9 +743,6 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen, unsign
       sctx->b.create_video_buffer = si_video_buffer_create;
       if (screen->resource_create_with_modifiers)
          sctx->b.create_video_buffer_with_modifiers = si_video_buffer_create_with_modifiers;
-   } else {
-      sctx->b.create_video_codec = vl_create_decoder;
-      sctx->b.create_video_buffer = vl_video_buffer_create;
    }
 
    /* GFX7 cannot unbind a constant buffer (S_BUFFER_LOAD doesn't skip loads