mesa: Add GL API support for ARB_copy_image

This adds the API entrypoint, error checking logic, and a driver hook for
the ARB_copy_image extension.

v2: Fix a typo in ARB_copy_image.xml and add it to the makefile
v3: Put ARB_copy_image.xml in the right place alphebetically in the
    makefile and properly prefix the commit message
v4: Fixed some line wrapping and added a check for null
v5: Check for incomplete renderbuffers

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Neil Roberts <neil@linux.intel.com>

v6: Update dispatch_sanity for the addition of CopyImageSubData

src/mapi/glapi/gen/ARB_copy_image.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<OpenGLAPI>
+
+<category name="GL_ARB_copy_image" number="123">
+
+    <function name="CopyImageSubData" offset="assign">
+        <param name="srcName" type="GLuint"/>
+        <param name="srcTarget" type="GLenum"/>
+        <param name="srcLevel" type="GLint"/>
+        <param name="srcX" type="GLint"/>
+        <param name="srcY" type="GLint"/>
+        <param name="srcZ" type="GLint"/>
+        <param name="dstName" type="GLuint"/>
+        <param name="dstTarget" type="GLenum"/>
+        <param name="dstLevel" type="GLint"/>
+        <param name="dstX" type="GLint"/>
+        <param name="dstY" type="GLint"/>
+        <param name="dstZ" type="GLint"/>
+        <param name="srcWidth" type="GLsizei"/>
+        <param name="srcHeight" type="GLsizei"/>
+        <param name="srcDepth" type="GLsizei"/>
+    </function>
+
+</category>
+
+</OpenGLAPI>

src/mapi/glapi/gen/Makefile.am

@@ -117,6 +117,7 @@ API_XML = \
 	ARB_compressed_texture_pixel_storage.xml \
 	ARB_compute_shader.xml \
 	ARB_copy_buffer.xml \
+	ARB_copy_image.xml \
 	ARB_debug_output.xml \
 	ARB_depth_buffer_float.xml \
 	ARB_depth_clamp.xml \

src/mapi/glapi/gen/gl_API.xml

@@ -8302,7 +8302,7 @@
 
 <xi:include href="ARB_compute_shader.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
-<!-- ARB extension #123 -->
+<xi:include href="ARB_copy_image.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
 <xi:include href="ARB_texture_view.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 

src/mapi/glapi/gen/gl_genexec.py

@@ -62,6 +62,7 @@ header = """/**
 #include "main/condrender.h"
 #include "main/context.h"
 #include "main/convolve.h"
+#include "main/copyimage.h"
 #include "main/depth.h"
 #include "main/dlist.h"
 #include "main/drawpix.h"