mapi: Rewrite mapi_abi.py to get rid of preprocessor magic.

The preprocessor magic in mapi was nothing but obfuscation.  Rewrite
mapi_abi.py to generate real C code.

This commit removes the hack added in
43121f20866bb89e8dac92bd92ec85a943704b7e.

5 files changed, 20 insertions, 21 deletions

diff --git a/src/gallium/state_trackers/vega/.gitignore b/src/gallium/state_trackers/vega/.gitignore
new file mode 100644
index 00000000000..c452229f7f4
--- /dev/null
+++ b/src/gallium/state_trackers/vega/.gitignore
@@ -0,0 +1 @@
+api_tmp.h
diff --git a/src/gallium/state_trackers/vega/Makefile b/src/gallium/state_trackers/vega/Makefile
index deafa39aa62..7342c124c28 100644
--- a/src/gallium/state_trackers/vega/Makefile
+++ b/src/gallium/state_trackers/vega/Makefile
@@ -42,4 +42,10 @@ C_SOURCES = \
            shader.c \
            shaders_cache.c
 
+GENERATED_SOURCES := api_tmp.h
+
 include ../../Makefile.template
+
+MAPI := $(TOP)/src/mapi
+api_tmp.h: $(MAPI)/mapi/mapi_abi.py $(MAPI)/vgapi/vgapi.csv
+	$(PYTHON2) $< --printer vgapi --mode app $(MAPI)/vgapi/vgapi.csv > $@
diff --git a/src/gallium/state_trackers/vega/SConscript b/src/gallium/state_trackers/vega/SConscript
index a62783ab18e..4900135a1c5 100644
--- a/src/gallium/state_trackers/vega/SConscript
+++ b/src/gallium/state_trackers/vega/SConscript
@@ -3,6 +3,8 @@
 
 Import('*')
 
+from sys import executable as python_cmd
+
 env = env.Clone()
 
 env.Append(CPPPATH = [
@@ -40,10 +42,16 @@ vega_sources = [
     'mask.c',
     'shader.c',
     'shaders_cache.c',
+    'text.c',
 ]
 
-# vgapi_header must be generated first
-env.Depends(vega_sources, vgapi_header)
+api_tmp = env.CodeGenerate(
+        target = '#/src/gallium/state_trackers/vega/api_tmp.h',
+        script = '#src/mapi/mapi/mapi_abi.py',
+        source = '#src/mapi/vgapi/vgapi.csv',
+        command = python_cmd + ' $SCRIPT --printer vgapi --mode app $SOURCE > $TARGET'
+)
+env.Depends(vega_sources, api_tmp)
 
 st_vega = env.ConvenienceLibrary(
     target = 'st_vega',
diff --git a/src/gallium/state_trackers/vega/api.c b/src/gallium/state_trackers/vega/api.c
index bf1d37493af..4bf7c71d453 100644
--- a/src/gallium/state_trackers/vega/api.c
+++ b/src/gallium/state_trackers/vega/api.c
@@ -28,23 +28,10 @@
 
 #include "mapi/mapi.h"
 
+/* define vega_spec and vega_procs for use with mapi */
+#define API_TMP_DEFINE_SPEC
 #include "api.h"
 
-static const char vega_spec[] =
-   "1"
-#define MAPI_ABI_ENTRY(ret, name, params) \
-   "\0" #name "\0"
-#define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
-   #name "\0"
-#include "vgapi/vgapi_tmp.h"
-   "\0";
-
-static const mapi_proc vega_procs[] = {
-#define MAPI_ABI_ENTRY(ret, name, params) \
-   (mapi_proc) vega ## name,
-#include "vgapi/vgapi_tmp.h"
-};
-
 static void api_init(void)
 {
    static boolean initialized = FALSE;
diff --git a/src/gallium/state_trackers/vega/api.h b/src/gallium/state_trackers/vega/api.h
index 955508dae9a..459dafb4bb0 100644
--- a/src/gallium/state_trackers/vega/api.h
+++ b/src/gallium/state_trackers/vega/api.h
@@ -33,10 +33,7 @@
 #include "VG/vgext.h"
 #include "vg_manager.h"
 
-/* declare the prototypes */
-#define MAPI_ABI_ENTRY(ret, name, params) \
-   ret VG_API_ENTRY vega ## name params;
-#include "vgapi/vgapi_tmp.h"
+#include "api_tmp.h"
 
 struct mapi_table;