llvmpipe: introduce compute shader context

The compute shader will need it's own context like the frag shader
has, this just introduces the framework struct and allocates/frees
for it in the right places.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>

src/gallium/drivers/llvmpipe/Makefile.sources

@@ -53,6 +53,8 @@ C_SOURCES := \
 	lp_state_blend.c \
 	lp_state_clip.c \
 	lp_state_derived.c \
+	lp_state_cs.c \
+	lp_state_cs.h \
 	lp_state_fs.c \
 	lp_state_fs.h \
 	lp_state_gs.c \

src/gallium/drivers/llvmpipe/lp_context.c

@@ -59,6 +59,9 @@ static void llvmpipe_destroy( struct pipe_context *pipe )
 
    lp_print_counters();
 
+   if (llvmpipe->csctx) {
+      lp_csctx_destroy(llvmpipe->csctx);
+   }
    if (llvmpipe->blitter) {
       util_blitter_destroy(llvmpipe->blitter);
    }
@@ -199,6 +202,9 @@ llvmpipe_create_context(struct pipe_screen *screen, void *priv,
    if (!llvmpipe->setup)
       goto fail;
 
+   llvmpipe->csctx = lp_csctx_create( &llvmpipe->pipe );
+   if (!llvmpipe->csctx)
+      goto fail;
    llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
    if (!llvmpipe->pipe.stream_uploader)
       goto fail;

src/gallium/drivers/llvmpipe/lp_context.h

@@ -40,6 +40,7 @@
 #include "lp_jit.h"
 #include "lp_setup.h"
 #include "lp_state_fs.h"
+#include "lp_state_cs.h"
 #include "lp_state_setup.h"
 
 
@@ -149,6 +150,8 @@ struct llvmpipe_context {
    struct lp_setup_variant_list_item setup_variants_list;
    unsigned nr_setup_variants;
 
+   struct lp_cs_context *csctx;
+
    /** Conditional query object and mode */
    struct pipe_query *render_cond_query;
    enum pipe_render_cond_flag render_cond_mode;

src/gallium/drivers/llvmpipe/lp_state_cs.c

@@ -0,0 +1,45 @@
+/**************************************************************************
+ *
+ * Copyright 2019 Red Hat.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **************************************************************************/
+#include "util/u_memory.h"
+
+#include "lp_state_cs.h"
+
+void
+lp_csctx_destroy(struct lp_cs_context *csctx)
+{
+   FREE(csctx);
+}
+
+struct lp_cs_context *lp_csctx_create(struct pipe_context *pipe)
+{
+   struct lp_cs_context *csctx;
+
+   csctx = CALLOC_STRUCT(lp_cs_context);
+   if (!csctx)
+      return NULL;
+
+   csctx->pipe = pipe;
+   return csctx;
+}

src/gallium/drivers/llvmpipe/lp_state_cs.h

@@ -0,0 +1,40 @@
+/**************************************************************************
+ *
+ * Copyright 2019 Red Hat.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef LP_STATE_CS_H
+#define LP_STATE_CS_H
+
+#include "os/os_thread.h"
+#include "util/u_thread.h"
+#include "pipe/p_state.h"
+
+struct lp_cs_context {
+   struct pipe_context *pipe;
+};
+
+struct lp_cs_context *lp_csctx_create(struct pipe_context *pipe);
+void lp_csctx_destroy(struct lp_cs_context *csctx);
+
+#endif

src/gallium/drivers/llvmpipe/meson.build

@@ -73,6 +73,8 @@ files_llvmpipe = files(
   'lp_state_blend.c',
   'lp_state_clip.c',
   'lp_state_derived.c',
+  'lp_state_cs.c',
+  'lp_state_cs.h',
   'lp_state_fs.c',
   'lp_state_fs.h',
   'lp_state_gs.c',