From e279d182323f27aea2c5bf6074c5f2724f7cd812 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= <maraeo@gmail.com>
Date: Fri, 8 Jan 2010 14:08:02 +0100
Subject: [PATCH] r300g: add is_r400 flag

r4xx has some additional fragment shader registers compared to r3xx.
---
 src/gallium/drivers/r300/r300_chipset.c | 14 ++++++++++++++
 src/gallium/drivers/r300/r300_chipset.h |  9 ++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/r300/r300_chipset.c b/src/gallium/drivers/r300/r300_chipset.c
index 51fdb82ff34..2ad968427db 100644
--- a/src/gallium/drivers/r300/r300_chipset.c
+++ b/src/gallium/drivers/r300/r300_chipset.c
@@ -33,6 +33,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
     /* Reasonable defaults */
     caps->num_vert_fpus = 4;
     caps->has_tcl = debug_get_bool_option("RADEON_NO_TCL", FALSE) ? FALSE : TRUE;
+    caps->is_r400 = FALSE;
     caps->is_r500 = FALSE;
     caps->high_second_pipe = FALSE;
 
@@ -123,6 +124,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x4A54:
             caps->family = CHIP_FAMILY_R420;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5548:
@@ -136,6 +138,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x5D57:
             caps->family = CHIP_FAMILY_R423;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x554C:
@@ -147,6 +150,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x5D4A:
             caps->family = CHIP_FAMILY_R430;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5D4C:
@@ -157,6 +161,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x5D52:
             caps->family = CHIP_FAMILY_R480;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x4B48:
@@ -166,6 +171,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x4B4C:
             caps->family = CHIP_FAMILY_R481;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5E4C:
@@ -182,36 +188,42 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x5E4D:
             caps->family = CHIP_FAMILY_RV410;
             caps->num_vert_fpus = 6;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5954:
         case 0x5955:
             caps->family = CHIP_FAMILY_RS480;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5974:
         case 0x5975:
             caps->family = CHIP_FAMILY_RS482;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5A41:
         case 0x5A42:
             caps->family = CHIP_FAMILY_RS400;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x5A61:
         case 0x5A62:
             caps->family = CHIP_FAMILY_RC410;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x791E:
         case 0x791F:
             caps->family = CHIP_FAMILY_RS690;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x793F:
@@ -219,6 +231,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x7942:
             caps->family = CHIP_FAMILY_RS600;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x796C:
@@ -227,6 +240,7 @@ void r300_parse_chipset(struct r300_capabilities* caps)
         case 0x796F:
             caps->family = CHIP_FAMILY_RS740;
             caps->has_tcl = FALSE;
+            caps->is_r400 = TRUE;
             break;
 
         case 0x7100:
diff --git a/src/gallium/drivers/r300/r300_chipset.h b/src/gallium/drivers/r300/r300_chipset.h
index 0633a8b8a72..28084864929 100644
--- a/src/gallium/drivers/r300/r300_chipset.h
+++ b/src/gallium/drivers/r300/r300_chipset.h
@@ -40,11 +40,18 @@ struct r300_capabilities {
     unsigned num_z_pipes;
     /* Whether or not TCL is physically present */
     boolean has_tcl;
+    /* Whether or not this is R400. The differences compared to their R3xx
+     * cousins are:
+     * - Extended fragment shader registers
+     * - Blend LTE/GTE thresholds */
+    boolean is_r400;
     /* Whether or not this is an RV515 or newer; R500s have many differences
      * that require extra consideration, compared to their R3xx cousins:
      * - Extra bit of width and height on texture sizes
      * - Blend color is split across two registers
-     * - Universal Shader (US) block used for fragment shaders */
+     * - Blend LTE/GTE thresholds
+     * - Universal Shader (US) block used for fragment shaders
+     * - FP16 blending and multisampling */
     boolean is_r500;
     /* Whether or not the second pixel pipe is accessed with the high bit */
     boolean high_second_pipe;
-- 
2.30.2