piglit: add patches for unbuildable surfaceless Mesa test

[Backported from master.]

Some EGL implementations do not actually ship all Khronos-
extensions. As it turns out, the Mali 450 driver does not
include any of the following symbols, used by the
egl_mesa_platform_surfaceless.c spec test:
* eglGetPlatformDisplay
* eglCreatePlatformPixmapSurface
* eglCreatePlatformWindowSurface

The Right Thing To Do was to obtain the implementation of
these functions (via eglGetProcAddress), as is provided
by their EXT counterparts. These are guaranteed to exist
since they are required by EGL_EXT_platform_base.

Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/meta/recipes-graphics/piglit/piglit/0004-egl_mesa_platform_surfaceless-Use-EXT-functions-for-.patch b/meta/recipes-graphics/piglit/piglit/0004-egl_mesa_platform_surfaceless-Use-EXT-functions-for-.patch
new file mode 100644
index 0000000000..0952af5821
--- /dev/null
+++ b/meta/recipes-graphics/piglit/piglit/0004-egl_mesa_platform_surfaceless-Use-EXT-functions-for-.patch
@@ -0,0 +1,78 @@
+From 57de1ff6758ec5ea4a52637f233e3e3150086255 Mon Sep 17 00:00:00 2001
+From: Daniel Diaz <daniel.diaz@linaro.org>
+Date: Wed, 17 May 2017 18:00:17 -0500
+Subject: [PATCH 4/4] egl_mesa_platform_surfaceless: Use EXT functions for
+ surfaces
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+These EXT symbols are guaranteed to exist since they require
+EGL_EXT_platform_base.
+
+Upstream-Status: Accepted, since git 7b74602.
+
+Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
+Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
+---
+ .../egl_mesa_platform_surfaceless.c                | 23 ++++++++++++++++++++--
+ 1 file changed, 21 insertions(+), 2 deletions(-)
+
+diff --git a/tests/egl/spec/egl_mesa_platform_surfaceless/egl_mesa_platform_surfaceless.c b/tests/egl/spec/egl_mesa_platform_surfaceless/egl_mesa_platform_surfaceless.c
+index 81a3919..264ed71 100644
+--- a/tests/egl/spec/egl_mesa_platform_surfaceless/egl_mesa_platform_surfaceless.c
++++ b/tests/egl/spec/egl_mesa_platform_surfaceless/egl_mesa_platform_surfaceless.c
+@@ -24,6 +24,24 @@
+ #include "piglit-util.h"
+ #include "piglit-util-egl.h"
+ 
++/* Extension function pointers.
++ *
++ * Use prefix 'pegl' (piglit egl) instead of 'egl' to avoid collisions with
++ * prototypes in eglext.h. */
++EGLSurface (*peglCreatePlatformPixmapSurfaceEXT)(EGLDisplay display, EGLConfig config,
++	    NativePixmapType native_pixmap, const EGLint *attrib_list);
++EGLSurface (*peglCreatePlatformWindowSurfaceEXT)(EGLDisplay display, EGLConfig config,
++	    NativeWindowType native_window, const EGLint *attrib_list);
++
++static void
++init_egl_extension_funcs(void)
++{
++	peglCreatePlatformPixmapSurfaceEXT = (void*)
++		eglGetProcAddress("eglCreatePlatformPixmapSurfaceEXT");
++	peglCreatePlatformWindowSurfaceEXT = (void*)
++		eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
++}
++
+ static void
+ test_setup(EGLDisplay *dpy)
+ {
+@@ -72,7 +90,7 @@ test_create_window(void *test_data)
+ 
+ 	test_setup(&dpy);
+ 
+-	surf = eglCreatePlatformWindowSurface(dpy, EGL_NO_CONFIG_KHR,
++	surf = peglCreatePlatformWindowSurfaceEXT(dpy, EGL_NO_CONFIG_KHR,
+ 					      /*native_window*/ NULL,
+ 					      /*attrib_list*/ NULL);
+ 	if (surf) {
+@@ -103,7 +121,7 @@ test_create_pixmap(void *test_data)
+ 
+ 	test_setup(&dpy);
+ 
+-	surf = eglCreatePlatformPixmapSurface(dpy, EGL_NO_CONFIG_KHR,
++	surf = peglCreatePlatformPixmapSurfaceEXT(dpy, EGL_NO_CONFIG_KHR,
+ 					      /*native_window*/ NULL,
+ 					      /*attrib_list*/ NULL);
+ 	if (surf) {
+@@ -205,6 +223,7 @@ main(int argc, char **argv)
+ 		piglit_report_result(PIGLIT_FAIL);
+ 	}
+ 
++	init_egl_extension_funcs();
+ 	result = piglit_run_selected_subtests(subtests, selected_names,
+ 					      num_selected, result);
+ 	piglit_report_result(result);
+-- 
+1.9.1
+