scons: Revamp how to specify targets to build.

Use scons target and dependency system instead of ad-hoc options.

Now is simply a matter of naming what to build. For example:

  scons libgl-xlib

  scons libgl-gdi

  scons graw-progs

  scons llvmpipe

and so on. And there is also the possibility of scepcified subdirs, e.g.

  scons src/gallium/drivers

If nothing is specified then everything will be build.

There might be some rough corners over the next days. Please bare with me.

3 files changed, 61 insertions, 101 deletions

diff --git a/src/gallium/targets/graw-null/SConscript b/src/gallium/targets/graw-null/SConscript
index 3416989d8e..ebac1728f0 100644
--- a/src/gallium/targets/graw-null/SConscript
+++ b/src/gallium/targets/graw-null/SConscript
@@ -5,54 +5,28 @@ Import('*')
 
 env = env.Clone()
 
-env.Prepend(LIBS = [
-    ws_null,
-    trace,
-    rbug,
-    identity,
-#    gallium,
-])
-
-env.Append(CPPPATH = [
-    '#src/gallium/drivers',
-])
+graw_util = env.SharedObject(
+    source = ['graw_util.c'],
+)
 
-if env['platform'] == 'windows':
-    # For trace
-    env.Append(LIBS = [
-        'ws2_32',
-    ])
+env = env.Clone()
 
 sources = [
     'graw_null.c',
-    '../graw-xlib/graw_util.c',
+    graw_util,
 ]
 
-if True:
-    env.Append(CPPDEFINES = 'GALLIUM_SOFTPIPE')
-    env.Prepend(LIBS = [softpipe])
-
-if env['llvm']:
-    env.Append(CPPDEFINES = 'GALLIUM_LLVMPIPE')
-    env.Tool('udis86')
-    env.Prepend(LIBS = [llvmpipe])
-
-# Need this for trace, identity drivers referenced by
-# gallium_wrap_screen().
-#
 env.Prepend(LIBS = [gallium])
 
 # TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
 graw = env.SharedLibrary(
-    target ='graw',
+    target = 'graw',
     source = sources,
 )
 
-env.InstallSharedLibrary(graw, version=(1, 0))
-
 if env['platform'] == 'windows':
     graw = env.FindIxes(graw, 'LIBPREFIX', 'LIBSUFFIX')
 else:
     graw = env.FindIxes(graw, 'SHLIBPREFIX', 'SHLIBSUFFIX')
 
-Export('graw')
+Export('graw_util', 'graw')
diff --git a/src/gallium/targets/graw-null/graw_null.c b/src/gallium/targets/graw-null/graw_null.c
index 5939a5acd3..f1fe3872c9 100644
--- a/src/gallium/targets/graw-null/graw_null.c
+++ b/src/gallium/targets/graw-null/graw_null.c
@@ -1,31 +1,5 @@
-#include "pipe/p_compiler.h"
-#include "util/u_debug.h"
-#include "util/u_memory.h"
-#include "target-helpers/wrap_screen.h"
-#include "sw/null/null_sw_winsys.h"
-#include "os/os_time.h"
 #include "state_tracker/graw.h"
 
-#ifdef GALLIUM_SOFTPIPE
-#include "softpipe/sp_public.h"
-#endif
-
-#ifdef GALLIUM_LLVMPIPE
-#include "llvmpipe/lp_public.h"
-#endif
-
-/* Haven't figured out a decent way to build the helper code yet -
- * #include it here temporarily.
- */
-#include "sw/sw_public.h"
-#include "sw/sw.c"
-
-#include <stdio.h>
-
-
-static struct {
-   void (*draw)(void);
-} graw;
 
 
 
@@ -37,45 +11,7 @@ graw_create_window_and_screen( int x,
                                enum pipe_format format,
                                void **handle)
 {
-   const char *default_driver;
-   const char *driver;
-   struct pipe_screen *screen = NULL;
-   struct sw_winsys *winsys = NULL;
-   static int dummy;
-
-
-   /* Create the underlying winsys, which performs presents to Xlib
-    * drawables:
-    */
-   winsys = null_sw_create();
-   if (winsys == NULL)
-      return NULL;
-
-#if defined(GALLIUM_LLVMPIPE)
-   default_driver = "llvmpipe";
-#elif defined(GALLIUM_SOFTPIPE)
-   default_driver = "softpipe";
-#else
-   default_driver = "";
-#endif
-
-   driver = debug_get_option("GALLIUM_DRIVER", default_driver);
-
-#if defined(GALLIUM_LLVMPIPE)
-   if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
-      screen = llvmpipe_create_screen( winsys );
-#endif
-
-#if defined(GALLIUM_SOFTPIPE)
-   if (screen == NULL)
-      screen = softpipe_create_screen( winsys );
-#endif
-
-   *handle = &dummy;
-
-   /* Inject any wrapping layers we want to here:
-    */
-   return gallium_wrap_screen( screen );
+   return NULL;
 }
 
 
@@ -83,13 +19,10 @@ graw_create_window_and_screen( int x,
 void 
 graw_set_display_func( void (*draw)( void ) )
 {
-   graw.draw = draw;
 }
 
 
 void
 graw_main_loop( void )
 {
-   graw.draw();
-   os_time_sleep(100000);
 }
diff --git a/src/gallium/targets/graw-null/graw_util.c b/src/gallium/targets/graw-null/graw_util.c
new file mode 100644
index 0000000000..531757f145
--- /dev/null
+++ b/src/gallium/targets/graw-null/graw_util.c
@@ -0,0 +1,53 @@
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "tgsi/tgsi_text.h"
+#include "util/u_memory.h"
+#include "state_tracker/graw.h"
+
+
+/* Helper functions.  These are the same for all graw implementations.
+ */
+PUBLIC void *
+graw_parse_geometry_shader(struct pipe_context *pipe,
+                           const char *text)
+{
+   struct tgsi_token tokens[1024];
+   struct pipe_shader_state state;
+
+   if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+      return NULL;
+
+   state.tokens = tokens;
+   return pipe->create_gs_state(pipe, &state);
+}
+
+PUBLIC void *
+graw_parse_vertex_shader(struct pipe_context *pipe,
+                         const char *text)
+{
+   struct tgsi_token tokens[1024];
+   struct pipe_shader_state state;
+
+   if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+      return NULL;
+
+   state.tokens = tokens;
+   return pipe->create_vs_state(pipe, &state);
+}
+
+PUBLIC void *
+graw_parse_fragment_shader(struct pipe_context *pipe,
+                           const char *text)
+{
+   struct tgsi_token tokens[1024];
+   struct pipe_shader_state state;
+
+   if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+      return NULL;
+
+   state.tokens = tokens;
+   return pipe->create_fs_state(pipe, &state);
+}
+