vrend: properly constify the shader api

This fixes warnings from commit 4691a160 (vrend: const correct
vrend_shader.h API).

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: John Bates <jbates@chromium.org>

src/vrend_debug.c

@@ -157,7 +157,7 @@ void vrend_init_debug_flags()
    }
 }
 
-unsigned vrend_debug(struct vrend_context *ctx, enum virgl_debug_flags flag)
+unsigned vrend_debug(const struct vrend_context *ctx, enum virgl_debug_flags flag)
 {
    return (vrend_debug_flags & flag) || vrend_context_has_debug_flag(ctx, flag);
 }

src/vrend_debug.h

@@ -29,7 +29,7 @@
 #include <stdarg.h>
 
 struct vrend_context;
-void vrend_print_context_name(struct vrend_context *ctx);
+void vrend_print_context_name(const struct vrend_context *ctx);
 
 enum virgl_debug_flags {
    dbg_shader_tgsi = 1 << 0,
@@ -65,7 +65,7 @@ int vrend_get_debug_flags(const char *flagstring);
 
 void vrend_context_set_debug_flags(struct vrend_context *ctx, const char *flags);
 
-unsigned vrend_debug(struct vrend_context *ctx, enum virgl_debug_flags flag);
+unsigned vrend_debug(const struct vrend_context *ctx, enum virgl_debug_flags flag);
 
 void vrend_debug_add_flag(enum virgl_debug_flags flag);
 

src/vrend_renderer.c

@@ -10141,12 +10141,12 @@ void vrend_renderer_create_sub_ctx(struct vrend_context *ctx, int sub_ctx_id)
    vrend_set_tweak_from_env(&ctx->sub->tweaks);
 }
 
-unsigned vrend_context_has_debug_flag(struct vrend_context *ctx, enum virgl_debug_flags flag)
+unsigned vrend_context_has_debug_flag(const struct vrend_context *ctx, enum virgl_debug_flags flag)
 {
    return ctx && (ctx->debug_flags & flag);
 }
 
-void vrend_print_context_name(struct vrend_context *ctx)
+void vrend_print_context_name(const struct vrend_context *ctx)
 {
    if (ctx)
       vrend_printf("%s: ", ctx->debug_name);

src/vrend_renderer.h

@@ -462,7 +462,7 @@ void vrend_renderer_reset(void);
 int vrend_renderer_get_poll_fd(void);
 void vrend_decode_reset(void);
 
-unsigned vrend_context_has_debug_flag(struct vrend_context *ctx,
+unsigned vrend_context_has_debug_flag(const struct vrend_context *ctx,
                                       enum virgl_debug_flags flag);
 
 unsigned vrend_renderer_query_multisample_caps(unsigned max_samples,

src/vrend_shader.c

@@ -143,7 +143,7 @@ struct vrend_io_range {
 
 struct dump_ctx {
    struct tgsi_iterate_context iter;
-   struct vrend_shader_cfg *cfg;
+   const struct vrend_shader_cfg *cfg;
    struct tgsi_shader_info info;
    int prog_type;
    int size;
@@ -4453,7 +4453,7 @@ static bool apply_prev_layout(struct dump_ctx *ctx)
 
       if (io->name == TGSI_SEMANTIC_GENERIC || io->name == TGSI_SEMANTIC_PATCH) {
 
-         struct vrend_layout_info *layout = ctx->key->prev_stage_generic_and_patch_outputs_layout;
+         const struct vrend_layout_info *layout = ctx->key->prev_stage_generic_and_patch_outputs_layout;
          for (unsigned generic_index = 0; generic_index  < ctx->key->num_prev_generic_and_patch_outputs; ++generic_index, ++layout) {
 
             bool already_found_one = false;
@@ -6641,7 +6641,7 @@ static bool allocate_strbuffers(struct dump_ctx* ctx)
    return true;
 }
 
-static void set_strbuffers(MAYBE_UNUSED struct vrend_context *rctx, struct dump_ctx* ctx,
+static void set_strbuffers(MAYBE_UNUSED const struct vrend_context *rctx, struct dump_ctx* ctx,
                            struct vrend_strarray *shader)
 {
    strarray_addstrbuf(shader, &ctx->glsl_ver_ext);
@@ -6657,7 +6657,7 @@ bool vrend_convert_shader(const struct vrend_context *rctx,
                           const struct tgsi_token *tokens,
                           uint32_t req_local_mem,
                           const struct vrend_shader_key *key,
-                          const struct vrend_shader_info *sinfo,
+                          struct vrend_shader_info *sinfo,
                           struct vrend_strarray *shader)
 {
    struct dump_ctx ctx;
@@ -6985,7 +6985,7 @@ bool vrend_shader_create_passthrough_tcs(const struct vrend_context *rctx,
                                          const struct tgsi_token *vs_tokens,
                                          const struct vrend_shader_key *key,
                                          const float tess_factors[6],
-                                         const struct vrend_shader_info *sinfo,
+                                         struct vrend_shader_info *sinfo,
                                          struct vrend_strarray *shader,
                                          int vertices_per_patch)
 {

src/vrend_shader.h

@@ -158,7 +158,7 @@ bool vrend_convert_shader(const struct vrend_context *rctx,
                           const struct tgsi_token *tokens,
                           uint32_t req_local_mem,
                           const struct vrend_shader_key *key,
-                          const struct vrend_shader_info *sinfo,
+                          struct vrend_shader_info *sinfo,
                           struct vrend_strarray *shader);
 
 const char *vrend_shader_samplertypeconv(bool use_gles, int sampler_type);
@@ -172,7 +172,7 @@ bool vrend_shader_create_passthrough_tcs(const struct vrend_context *ctx,
                                          const struct tgsi_token *vs_info,
                                          const struct vrend_shader_key *key,
                                          const float tess_factors[6],
-                                         const struct vrend_shader_info *sinfo,
+                                         struct vrend_shader_info *sinfo,
                                          struct vrend_strarray *shader,
                                          int vertices_per_patch);