[Mesa-dev] [PATCH mesa 03/10] egl+glx: turn LIBGL_ALWAYS_SOFTWARE into a boolean

Eric Engestrom eric.engestrom at imgtec.com
Fri Sep 8 12:40:49 UTC 2017


Instead of setting based on set/unset, allow users to use boolean values.
In the docs, use `ALWAYS=true` instead of `ALWAYS=1` as it's clearer IMO.

Signed-off-by: Eric Engestrom <eric.engestrom at imgtec.com>
---
 docs/envvars.html                       | 4 ++--
 docs/releasing.html                     | 4 ++--
 src/egl/Android.mk                      | 1 +
 src/egl/Makefile.am                     | 6 ++++--
 src/egl/SConscript                      | 2 ++
 src/egl/drivers/dri2/platform_wayland.c | 3 ++-
 src/egl/drivers/dri2/platform_x11.c     | 3 ++-
 src/glx/apple/apple_visual.c            | 2 +-
 src/glx/glxext.c                        | 2 +-
 9 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/docs/envvars.html b/docs/envvars.html
index ca553e5397..b70528fa46 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -30,7 +30,7 @@
    If set to 'verbose' additional information will be printed.
 <li>LIBGL_DRIVERS_PATH - colon-separated list of paths to search for DRI drivers
 <li>LIBGL_ALWAYS_INDIRECT - forces an indirect rendering context/connection.
-<li>LIBGL_ALWAYS_SOFTWARE - if set, always use software rendering
+<li>LIBGL_ALWAYS_SOFTWARE - if set to `true`, always use software rendering
 <li>LIBGL_NO_DRAWARRAYS - if set do not use DrawArrays GLX protocol (for debugging)
 <li>LIBGL_SHOW_FPS - print framerate to stdout based on the number of glXSwapBuffers
     calls per second.
@@ -240,7 +240,7 @@
     Use kill -10 <pid> to toggle the hud as desired.
 <li>GALLIUM_HUD_DUMP_DIR - specifies a directory for writing the displayed
     hud values into files.
-<li>GALLIUM_DRIVER - useful in combination with LIBGL_ALWAYS_SOFTWARE=1 for
+<li>GALLIUM_DRIVER - useful in combination with LIBGL_ALWAYS_SOFTWARE=true for
     choosing one of the software renderers "softpipe", "llvmpipe" or "swr".
 <li>GALLIUM_LOG_FILE - specifies a file for logging all errors, warnings, etc.
     rather than stderr.
diff --git a/docs/releasing.html b/docs/releasing.html
index 930de0edef..66742b0bcb 100644
--- a/docs/releasing.html
+++ b/docs/releasing.html
@@ -483,12 +483,12 @@ <h1 id="release">Making a new release</h1>
 	eval $__glxgears_cmd
 	eval $__es2info_cmd
 	eval $__es2gears_cmd
-	export LIBGL_ALWAYS_SOFTWARE=1
+	export LIBGL_ALWAYS_SOFTWARE=true
 	eval $__glxinfo_cmd
 	eval $__glxgears_cmd
 	eval $__es2info_cmd
 	eval $__es2gears_cmd
-	export LIBGL_ALWAYS_SOFTWARE=1
+	export LIBGL_ALWAYS_SOFTWARE=true
 	export GALLIUM_DRIVER=softpipe
 	eval $__glxinfo_cmd
 	eval $__glxgears_cmd
diff --git a/src/egl/Android.mk b/src/egl/Android.mk
index 0055322677..d7a6e88918 100644
--- a/src/egl/Android.mk
+++ b/src/egl/Android.mk
@@ -48,6 +48,7 @@ LOCAL_C_INCLUDES := \
 	$(MESA_TOP)/src/egl/drivers/dri2
 
 LOCAL_STATIC_LIBRARIES := \
+	libmesa_util \
 	libmesa_loader
 
 LOCAL_SHARED_LIBRARIES := \
diff --git a/src/egl/Makefile.am b/src/egl/Makefile.am
index bb8ec9745d..c00e929fb4 100644
--- a/src/egl/Makefile.am
+++ b/src/egl/Makefile.am
@@ -161,7 +161,8 @@ libEGL_mesa_la_SOURCES = \
 	main/egldispatchstubs.c \
 	g_egldispatchstubs.c \
 	g_egldispatchstubs.h
-libEGL_mesa_la_LIBADD = libEGL_common.la
+libEGL_mesa_la_LIBADD = libEGL_common.la \
+	$(top_builddir)/src/util/libmesautil.la
 libEGL_mesa_la_LDFLAGS = \
 	-no-undefined \
 	-version-number 0 \
@@ -173,7 +174,8 @@ else # USE_LIBGLVND
 
 lib_LTLIBRARIES = libEGL.la
 libEGL_la_SOURCES =
-libEGL_la_LIBADD = libEGL_common.la
+libEGL_la_LIBADD = libEGL_common.la \
+	$(top_builddir)/src/util/libmesautil.la
 libEGL_la_LDFLAGS = \
 	-no-undefined \
 	-version-number 1:0 \
diff --git a/src/egl/SConscript b/src/egl/SConscript
index 8f8b11a61c..927092d228 100644
--- a/src/egl/SConscript
+++ b/src/egl/SConscript
@@ -24,6 +24,8 @@ env.Append(CPPDEFINES = [
 ])
 egl_sources.append('drivers/haiku/egl_haiku.cpp')
 
+env.Prepend(LIBS = [mesautil])
+
 egl = env.SharedLibrary(
     target = 'EGL',
     source = egl_sources,
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index bf2adbf63b..eb10a7dd13 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -42,6 +42,7 @@
 #include "egl_dri2.h"
 #include "egl_dri2_fallbacks.h"
 #include "loader.h"
+#include "util/debug.h"
 #include "util/u_vector.h"
 #include "eglglobals.h"
 
@@ -1940,7 +1941,7 @@ dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
 {
    EGLBoolean initialized = EGL_TRUE;
 
-   int hw_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
+   bool hw_accel = !env_var_as_boolean("LIBGL_ALWAYS_SOFTWARE", false);
 
    if (hw_accel) {
       if (!dri2_initialize_wayland_drm(drv, disp)) {
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 5ca5b912da..5d5eea3773 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -40,6 +40,7 @@
 #endif
 #include <sys/types.h>
 #include <sys/stat.h>
+#include "util/debug.h"
 #include "util/macros.h"
 
 #include "egl_dri2.h"
@@ -1458,7 +1459,7 @@ dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp)
 {
    EGLBoolean initialized = EGL_FALSE;
 
-   if (!getenv("LIBGL_ALWAYS_SOFTWARE")) {
+   if (!env_var_as_boolean("LIBGL_ALWAYS_SOFTWARE", false)) {
 #ifdef HAVE_DRI3
       if (!getenv("LIBGL_DRI3_DISABLE"))
          initialized = dri2_initialize_x11_dri3(drv, disp);
diff --git a/src/glx/apple/apple_visual.c b/src/glx/apple/apple_visual.c
index d665cd7e01..a491823917 100644
--- a/src/glx/apple/apple_visual.c
+++ b/src/glx/apple/apple_visual.c
@@ -90,7 +90,7 @@ apple_visual_create_pfobj(CGLPixelFormatObj * pfobj, const struct glx_config * m
 
       attr[numattr++] = kCGLPFAOffScreen;
    }
-   else if (getenv("LIBGL_ALWAYS_SOFTWARE") != NULL) {
+   else if (env_var_as_boolean("LIBGL_ALWAYS_SOFTWARE", false)) {
       apple_glx_diagnostic
          ("Software rendering requested.  Using kCGLRendererGenericFloatID.\n");
       attr[numattr++] = kCGLPFARendererID;
diff --git a/src/glx/glxext.c b/src/glx/glxext.c
index 3431f3e5ca..3415277bbe 100644
--- a/src/glx/glxext.c
+++ b/src/glx/glxext.c
@@ -908,7 +908,7 @@ __glXInitialize(Display * dpy)
 
 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
    glx_direct = (getenv("LIBGL_ALWAYS_INDIRECT") == NULL);
-   glx_accel = (getenv("LIBGL_ALWAYS_SOFTWARE") == NULL);
+   glx_accel = env_var_as_boolean("LIBGL_ALWAYS_SOFTWARE", false);
 
    dpyPriv->drawHash = __glxHashCreate();
 
-- 
Cheers,
  Eric



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