mapi: add ARB_tessellation_shader

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/mapi/glapi/gen/ARB_tessellation_shader.xml

+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<!-- Note: no GLX protocol info yet. -->
+
+<OpenGLAPI>
+
+
+<category name="GL_ARB_tessellation_shader" number="91">
+
+    <!--<enum value="0" name="FALSE"/>
+    <enum value="1" name="TRUE"/>
+    <enum value="0x0004" name="TRIANGLES"/>
+    <enum value="0x0007" name="QUADS"/>
+    <enum value="0x0202" name="EQUAL"/>
+    <enum value="0x0900" name="CW"/>
+    <enum value="0x0901" name="CCW"/>-->
+
+    <enum value="0x000E" name="PATCHES"/>
+    <enum value="0x84F0" name="UNIFORM_BLOCK_REFERENCED_BY_TESS_CONTROL_SHADER"/>
+    <enum value="0x84F1" name="UNIFORM_BLOCK_REFERENCED_BY_TESS_EVALUATION_SHADER"/>
+    <enum value="0x886C" name="MAX_TESS_CONTROL_INPUT_COMPONENTS"/>
+    <enum value="0x886D" name="MAX_TESS_EVALUATION_INPUT_COMPONENTS"/>
+    <enum value="0x8E1E" name="MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS"/>
+    <enum value="0x8E1F" name="MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS"/>
+    <enum value="0x8E72" name="PATCH_VERTICES"/>
+    <enum value="0x8E73" name="PATCH_DEFAULT_INNER_LEVEL"/>
+    <enum value="0x8E74" name="PATCH_DEFAULT_OUTER_LEVEL"/>
+    <enum value="0x8E75" name="TESS_CONTROL_OUTPUT_VERTICES"/>
+    <enum value="0x8E76" name="TESS_GEN_MODE"/>
+    <enum value="0x8E77" name="TESS_GEN_SPACING"/>
+    <enum value="0x8E78" name="TESS_GEN_VERTEX_ORDER"/>
+    <enum value="0x8E79" name="TESS_GEN_POINT_MODE"/>
+    <enum value="0x8E7A" name="ISOLINES"/>
+    <enum value="0x8E7B" name="FRACTIONAL_ODD"/>
+    <enum value="0x8E7C" name="FRACTIONAL_EVEN"/>
+    <enum value="0x8E7D" name="MAX_PATCH_VERTICES"/>
+    <enum value="0x8E7E" name="MAX_TESS_GEN_LEVEL"/>
+    <enum value="0x8E7F" name="MAX_TESS_CONTROL_UNIFORM_COMPONENTS"/>
+    <enum value="0x8E80" name="MAX_TESS_EVALUATION_UNIFORM_COMPONENTS"/>
+    <enum value="0x8E81" name="MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS"/>
+    <enum value="0x8E82" name="MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS"/>
+    <enum value="0x8E83" name="MAX_TESS_CONTROL_OUTPUT_COMPONENTS"/>
+    <enum value="0x8E84" name="MAX_TESS_PATCH_COMPONENTS"/>
+    <enum value="0x8E85" name="MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS"/>
+    <enum value="0x8E86" name="MAX_TESS_EVALUATION_OUTPUT_COMPONENTS"/>
+    <enum value="0x8E87" name="TESS_EVALUATION_SHADER"/>
+    <enum value="0x8E88" name="TESS_CONTROL_SHADER"/>
+    <enum value="0x8E89" name="MAX_TESS_CONTROL_UNIFORM_BLOCKS"/>
+    <enum value="0x8E8A" name="MAX_TESS_EVALUATION_UNIFORM_BLOCKS"/>
+
+    <function name="PatchParameteri" offset="assign">
+        <param name="pname" type="GLenum"/>
+        <param name="value" type="GLint"/>
+    </function>
+    <function name="PatchParameterfv" offset="assign">
+        <param name="pname" type="GLenum"/>
+        <param name="values" type="const GLfloat *"/>
+    </function>
+</category>
+
+</OpenGLAPI>

src/mapi/glapi/gen/gl_API.xml

@@ -8072,7 +8072,11 @@
 
 <xi:include href="ARB_vertex_type_2_10_10_10_rev.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
-<!-- ARB extensions #86...#93 -->
+<!-- ARB extensions #86...#90 -->
+
+<xi:include href="ARB_tessellation_shader.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+
+<!-- ARB extensions #92...#93 -->
 
 <xi:include href="ARB_draw_indirect.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 

src/mapi/glapi/gen/gl_enums.py

@@ -118,6 +118,7 @@ static const char *prim_names[PRIM_MAX+3] = {
    "GL_LINE_STRIP_ADJACENCY",
    "GL_TRIANGLES_ADJACENCY",
    "GL_TRIANGLE_STRIP_ADJACENCY",
+   "GL_PATCHES",
    "outside begin/end",
    "unknown state"
 };

src/mesa/main/mtypes.h

@@ -90,7 +90,7 @@ struct vbo_context;
 
 
 /** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
-#define PRIM_MAX                 GL_TRIANGLE_STRIP_ADJACENCY
+#define PRIM_MAX                 GL_PATCHES
 #define PRIM_OUTSIDE_BEGIN_END   (PRIM_MAX + 1)
 #define PRIM_UNKNOWN             (PRIM_MAX + 2)
 

src/mesa/main/shaderapi.c

@@ -1984,3 +1984,21 @@ _mesa_CreateShaderProgramv(GLenum type, GLsizei count,
 
    return _mesa_create_shader_program(ctx, GL_TRUE, type, count, strings);
 }
+
+
+/**
+ * For GL_ARB_tessellation_shader
+ */
+extern void GLAPIENTRY
+_mesa_PatchParameteri(GLenum pname, GLint value)
+{
+   /* STUB */
+}
+
+
+extern void GLAPIENTRY
+_mesa_PatchParameterfv(GLenum pname, const GLfloat *values)
+{
+   /* STUB */
+}
+

src/mesa/main/shaderapi.h

@@ -264,6 +264,14 @@ _mesa_get_program_resourceiv(struct gl_shader_program *shProg,
                              GLsizei bufSize, GLsizei *length,
                              GLint *params);
 
+/* GL_ARB_tessellation_shader */
+extern void GLAPIENTRY
+_mesa_PatchParameteri(GLenum pname, GLint value);
+
+extern void GLAPIENTRY
+_mesa_PatchParameterfv(GLenum pname, const GLfloat *values);
+
+
 #ifdef __cplusplus
 }
 #endif

src/mesa/main/tests/dispatch_sanity.cpp

@@ -563,6 +563,8 @@ const struct function common_desktop_functions_possible[] = {
 
    /* GL 4.0 */
    { "glMinSampleShading", 40, -1 },
+   { "glPatchParameteri", 40, -1 },
+   { "glPatchParameterfv", 40, -1 },
    { "glBlendEquationi", 40, -1 },
    { "glBlendEquationSeparatei", 40, -1 },
    { "glBlendFunci", 40, -1 },