renderer: use debug name in some more debug statements

src/vrend_renderer.c

@@ -2112,7 +2112,7 @@ void vrend_draw_vbo(struct vrend_context *ctx,
      boolean fs_dirty, vs_dirty, gs_dirty;
      boolean dual_src = util_blend_state_is_dual(&ctx->sub->blend_state, 0);
      if (!ctx->sub->vs || !ctx->sub->fs) {
-        fprintf(stderr,"dropping rendering due to missing shaders\n");
+        fprintf(stderr,"dropping rendering due to missing shaders: %s\n", ctx->debug_name);
         return;
      }
 
@@ -2122,7 +2122,7 @@ void vrend_draw_vbo(struct vrend_context *ctx,
         vrend_shader_select(ctx, ctx->sub->gs, &gs_dirty);
 
      if (!ctx->sub->vs->current || !ctx->sub->fs->current || (ctx->sub->gs && !ctx->sub->gs->current)) {
-        fprintf(stderr, "failure to compile shader variants\n");
+        fprintf(stderr, "failure to compile shader variants: %s\n", ctx->debug_name);
         return;
      }
      prog = lookup_shader_program(ctx, ctx->sub->vs->current->id, ctx->sub->fs->current->id, ctx->sub->gs ? ctx->sub->gs->current->id : 0, dual_src);
@@ -2285,10 +2285,10 @@ void vrend_draw_vbo(struct vrend_context *ctx,
 	} else loc = -1;
 
 	if (loc == -1) {
-           fprintf(stderr,"cannot find loc %d %d %d\n", i, ctx->sub->ve->count, ctx->sub->prog->ss[PIPE_SHADER_VERTEX]->sel->sinfo.num_inputs);
+           fprintf(stderr,"%s: cannot find loc %d %d %d\n", ctx->debug_name, i, ctx->sub->ve->count, ctx->sub->prog->ss[PIPE_SHADER_VERTEX]->sel->sinfo.num_inputs);
           num_enable--;
           if (i == 0) {
-             fprintf(stderr,"shader probably didn't compile - skipping rendering\n");
+             fprintf(stderr,"%s: shader probably didn't compile - skipping rendering\n", ctx->debug_name);
              return;
           }
           continue;

vtest/vtest_renderer.c

@@ -81,9 +81,6 @@ int vtest_create_renderer(int fd, uint32_t length)
     ret = vtest_block_read(renderer.remote_fd, vtestname, length);
     if (ret != length)
 	return -1;
-
-    fprintf(stderr, "string len is %d: %s\n", length, vtestname);
-
     ret = virgl_renderer_context_create(ctx_id, strlen(vtestname), vtestname);
     return ret;
 }