From edf4f53c15254ac53ab80ed127f3ff88f35dff8d Mon Sep 17 00:00:00 2001
From: Daniel Borca <dborca@users.sourceforge.net>
Date: Wed, 14 Apr 2004 08:00:52 +0000
Subject: documentation updates Glide3 driver: POINTCAST palette fixes

---
 src/mesa/drivers/glide/fxg.c      | 18 ++++++++++++++----
 src/mesa/drivers/glide/fxg.h      |  2 +-
 src/mesa/drivers/glide/fxglidew.c |  2 +-
 3 files changed, 16 insertions(+), 6 deletions(-)

(limited to 'src/mesa/drivers/glide')

diff --git a/src/mesa/drivers/glide/fxg.c b/src/mesa/drivers/glide/fxg.c
index b7408a70f9..c06b8dec2f 100644
--- a/src/mesa/drivers/glide/fxg.c
+++ b/src/mesa/drivers/glide/fxg.c
@@ -2240,8 +2240,12 @@ void FX_CALL fake_grTexNCCTableExt (GrChipID_t   tmu,
 /****************************************************************************\
 * interface                                                                  *
 \****************************************************************************/
-void tdfx_hook_glide (struct tdfx_glide *Glide)
+void tdfx_hook_glide (struct tdfx_glide *Glide, int pointcast)
 {
+/* GET_EXT_ADDR: get function pointer
+ * GET_EXT_FAKE: get function pointer if possible, else use a fake function
+ * GET_EXT_NULL: get function pointer if possible, else leave NULL pointer
+ */
 #if FX_TRAP_GLIDE
 #define GET_EXT_ADDR(name) *(GrProc *)&real_##name = grGetProcAddress(#name), Glide->name = trap_##name
 #define GET_EXT_FAKE(name) GET_EXT_ADDR(name); if (real_##name == NULL) real_##name = fake_##name
@@ -2263,9 +2267,15 @@ void tdfx_hook_glide (struct tdfx_glide *Glide)
  GET_EXT_ADDR(grTexChromaModeExt);
  GET_EXT_ADDR(grTexChromaRangeExt);
  /* pointcast */
- GET_EXT_FAKE(grTexDownloadTableExt);
- GET_EXT_FAKE(grTexDownloadTablePartialExt);
- GET_EXT_FAKE(grTexNCCTableExt);
+ if (pointcast) {
+    GET_EXT_FAKE(grTexDownloadTableExt);
+    GET_EXT_FAKE(grTexDownloadTablePartialExt);
+    GET_EXT_FAKE(grTexNCCTableExt);
+ } else {
+    Glide->grTexDownloadTableExt = fake_grTexDownloadTableExt;
+    Glide->grTexDownloadTablePartialExt = fake_grTexDownloadTablePartialExt;
+    Glide->grTexNCCTableExt = fake_grTexNCCTableExt;
+ }
  /* tbext */
  GET_EXT_ADDR(grTextureBufferExt);
  GET_EXT_ADDR(grTextureAuxBufferExt);
diff --git a/src/mesa/drivers/glide/fxg.h b/src/mesa/drivers/glide/fxg.h
index f282296715..e712011168 100644
--- a/src/mesa/drivers/glide/fxg.h
+++ b/src/mesa/drivers/glide/fxg.h
@@ -377,6 +377,6 @@ struct tdfx_glide {
    void (FX_CALL *txPalToNcc) (GuNccTable *ncc_table, const FxU32 *pal);
 };
 
-void tdfx_hook_glide (struct tdfx_glide *Glide);
+void tdfx_hook_glide (struct tdfx_glide *Glide, int pointcast);
 
 #endif
diff --git a/src/mesa/drivers/glide/fxglidew.c b/src/mesa/drivers/glide/fxglidew.c
index 6af9895f1b..67d816b627 100644
--- a/src/mesa/drivers/glide/fxglidew.c
+++ b/src/mesa/drivers/glide/fxglidew.c
@@ -240,7 +240,7 @@ FX_grSstQueryHardware(GrHwConfiguration * config)
 
    }
 
-   tdfx_hook_glide(&config->Glide);
+   tdfx_hook_glide(&config->Glide, getenv("MESA_FX_POINTCAST") != NULL);
 
    END_BOARD_LOCK();
    return 1;
-- 
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