mesa: add tessellation shader enums

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/glsl/shader_enums.h

@@ -36,9 +36,11 @@
 typedef enum
 {
    MESA_SHADER_VERTEX = 0,
-   MESA_SHADER_GEOMETRY = 1,
+   MESA_SHADER_TESS_CTRL = 1,
-   MESA_SHADER_FRAGMENT = 2,
+   MESA_SHADER_TESS_EVAL = 2,
-   MESA_SHADER_COMPUTE = 3,
+   MESA_SHADER_GEOMETRY = 3,
+   MESA_SHADER_FRAGMENT = 4,
+   MESA_SHADER_COMPUTE = 5,
 } gl_shader_stage;
 
 #define MESA_SHADER_STAGES (MESA_SHADER_COMPUTE + 1)

src/mesa/drivers/common/meta.c

@@ -945,6 +945,8 @@ _mesa_meta_end(struct gl_context *ctx)
    if (state & MESA_META_SHADER) {
       static const GLenum targets[] = {
          GL_VERTEX_SHADER,
+         GL_TESS_CONTROL_SHADER,
+         GL_TESS_EVALUATION_SHADER,
          GL_GEOMETRY_SHADER,
          GL_FRAGMENT_SHADER,
       };

src/mesa/drivers/dri/i965/intel_debug.c

@@ -79,11 +79,13 @@ intel_debug_flag_for_shader_stage(gl_shader_stage stage)
 {
    uint64_t flags[] = {
       [MESA_SHADER_VERTEX] = DEBUG_VS,
+      [MESA_SHADER_TESS_CTRL] = 0,
+      [MESA_SHADER_TESS_EVAL] = 0,
       [MESA_SHADER_GEOMETRY] = DEBUG_GS,
       [MESA_SHADER_FRAGMENT] = DEBUG_WM,
       [MESA_SHADER_COMPUTE] = DEBUG_CS,
    };
-   STATIC_ASSERT(MESA_SHADER_STAGES == 4);
+   STATIC_ASSERT(MESA_SHADER_STAGES == 6);
    return flags[stage];
 }
 

src/mesa/main/context.c

@@ -478,6 +478,8 @@ init_program_limits(struct gl_constants *consts, gl_shader_stage stage,
       prog->MaxInputComponents = 16 * 4; /* old limit not to break tnl and swrast */
       prog->MaxOutputComponents = 0; /* value not used */
       break;
+   case MESA_SHADER_TESS_CTRL:
+   case MESA_SHADER_TESS_EVAL:
    case MESA_SHADER_GEOMETRY:
       prog->MaxParameters = MAX_VERTEX_PROGRAM_PARAMS;
       prog->MaxAttribs = MAX_VERTEX_GENERIC_ATTRIBS;

src/mesa/main/shaderobj.h

@@ -111,6 +111,10 @@ _mesa_shader_enum_to_shader_stage(GLenum v)
       return MESA_SHADER_FRAGMENT;
    case GL_GEOMETRY_SHADER:
       return MESA_SHADER_GEOMETRY;
+   case GL_TESS_CONTROL_SHADER:
+      return MESA_SHADER_TESS_CTRL;
+   case GL_TESS_EVALUATION_SHADER:
+      return MESA_SHADER_TESS_EVAL;
    case GL_COMPUTE_SHADER:
       return MESA_SHADER_COMPUTE;
    default:

src/mesa/program/prog_print.c

@@ -1015,6 +1015,12 @@ _mesa_write_shader_to_file(const struct gl_shader *shader)
    case MESA_SHADER_FRAGMENT:
       type = "frag";
       break;
+   case MESA_SHADER_TESS_CTRL:
+      type = "tesc";
+      break;
+   case MESA_SHADER_TESS_EVAL:
+      type = "tese";
+      break;
    case MESA_SHADER_VERTEX:
       type = "vert";
       break;

src/mesa/program/program.h

@@ -216,6 +216,10 @@ _mesa_program_enum_to_shader_stage(GLenum v)
       return MESA_SHADER_FRAGMENT;
    case GL_GEOMETRY_PROGRAM_NV:
       return MESA_SHADER_GEOMETRY;
+   case GL_TESS_CONTROL_PROGRAM_NV:
+      return MESA_SHADER_TESS_CTRL;
+   case GL_TESS_EVALUATION_PROGRAM_NV:
+      return MESA_SHADER_TESS_EVAL;
    case GL_COMPUTE_PROGRAM_NV:
       return MESA_SHADER_COMPUTE;
    default:
@@ -235,6 +239,10 @@ _mesa_shader_stage_to_program(unsigned stage)
       return GL_FRAGMENT_PROGRAM_ARB;
    case MESA_SHADER_GEOMETRY:
       return GL_GEOMETRY_PROGRAM_NV;
+   case MESA_SHADER_TESS_CTRL:
+      return GL_TESS_CONTROL_PROGRAM_NV;
+   case MESA_SHADER_TESS_EVAL:
+      return GL_TESS_EVALUATION_PROGRAM_NV;
    case MESA_SHADER_COMPUTE:
       return GL_COMPUTE_PROGRAM_NV;
    }