gallium: add a new PIPE_SHADER_MESH_TYPES

This adds a new limit, changing PIPE_SHADER_TYPES seems frought
with danger and very tricky. Currently only lava/llvmpipe plan to
offer task/mesh in GL land, so let's limit the fallout for now.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23291>

src/compiler/shader_enums.h

@@ -63,7 +63,11 @@ typedef enum pipe_shader_type
    PIPE_SHADER_TYPES = (PIPE_SHADER_COMPUTE + 1),
    /* Vulkan-only stages. */
    MESA_SHADER_TASK         = 6,
+   PIPE_SHADER_TASK = MESA_SHADER_TASK,
    MESA_SHADER_MESH         = 7,
+   PIPE_SHADER_MESH = MESA_SHADER_MESH,
+   PIPE_SHADER_MESH_TYPES = (PIPE_SHADER_MESH + 1),
+
    MESA_SHADER_RAYGEN       = 8,
    MESA_SHADER_ANY_HIT      = 9,
    MESA_SHADER_CLOSEST_HIT  = 10,

src/gallium/auxiliary/tgsi/tgsi_strings.c

@@ -32,14 +32,16 @@
 #include "tgsi_strings.h"
 
 
-const char *tgsi_processor_type_names[6] =
+const char *tgsi_processor_type_names[8] =
 {
    "VERT",
    "TESS_CTRL",
    "TESS_EVAL",
    "GEOM",
    "FRAG",
-   "COMP"
+   "COMP",
+   "TASK",
+   "MESH"
 };
 
 static const char *tgsi_file_names[] =

src/gallium/auxiliary/tgsi/tgsi_strings.h

@@ -38,7 +38,7 @@ extern "C" {
 #endif
 
 
-extern const char *tgsi_processor_type_names[PIPE_SHADER_TYPES];
+extern const char *tgsi_processor_type_names[PIPE_SHADER_MESH_TYPES];
 
 extern const char *tgsi_semantic_names[TGSI_SEMANTIC_COUNT];