From bace12e8d785f227dc13b83c5c4b3ddc5d2669f4 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Sun, 14 Mar 2010 18:31:05 +0000
Subject: [PATCH] need accum-bits config variable

---
 panda/src/display/config_display.cxx        | 7 +++++++
 panda/src/display/config_display.h          | 2 ++
 panda/src/display/frameBufferProperties.cxx | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/panda/src/display/config_display.cxx b/panda/src/display/config_display.cxx
index 3fd0967592..adeac3bb9d 100644
--- a/panda/src/display/config_display.cxx
+++ b/panda/src/display/config_display.cxx
@@ -350,6 +350,10 @@ ConfigVariableBool framebuffer_stencil
 ("framebuffer-stencil", false,
  PRC_DESC("True if FM_stencil should be added to the default framebuffer "
           "properties, which requests an stencil buffer if possible."));
+ConfigVariableBool framebuffer_accum
+("framebuffer-accum", false,
+ PRC_DESC("True if FM_accum should be added to the default framebuffer "
+          "properties, which requests an accumulator buffer if possible."));
 ConfigVariableBool framebuffer_stereo
 ("framebuffer-stereo", false,
  PRC_DESC("True if FM_stereo should be added to the default framebuffer "
@@ -368,6 +372,9 @@ ConfigVariableInt alpha_bits
 ConfigVariableInt stencil_bits
 ("stencil-bits", 0,
  PRC_DESC("The minimum number of stencil buffer bits requested."));
+ConfigVariableInt accum_bits
+("accum-bits", 0,
+ PRC_DESC("The minimum number of accumulator buffer bits requested."));
 ConfigVariableInt multisamples
 ("multisamples", 0,
  PRC_DESC("The minimum number of samples requested."));
diff --git a/panda/src/display/config_display.h b/panda/src/display/config_display.h
index e1a2fedf7c..702de29fa6 100644
--- a/panda/src/display/config_display.h
+++ b/panda/src/display/config_display.h
@@ -84,11 +84,13 @@ extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_multisample;
 extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_depth;
 extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_alpha;
 extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_stencil;
+extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_accum;
 extern EXPCL_PANDA_DISPLAY ConfigVariableBool framebuffer_stereo;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt depth_bits;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt color_bits;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt alpha_bits;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt stencil_bits;
+extern EXPCL_PANDA_DISPLAY ConfigVariableInt accum_bits;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt multisamples;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt back_buffers;
 
diff --git a/panda/src/display/frameBufferProperties.cxx b/panda/src/display/frameBufferProperties.cxx
index 0d44e682e4..5cf9fd7063 100644
--- a/panda/src/display/frameBufferProperties.cxx
+++ b/panda/src/display/frameBufferProperties.cxx
@@ -112,6 +112,9 @@ get_default() {
   if (framebuffer_stencil) {
     default_props.set_stencil_bits(1);
   }
+  if (framebuffer_accum) {
+    default_props.set_accum_bits(1);
+  }
   if (framebuffer_multisample) {
     default_props.set_multisamples(1);
   }
@@ -130,6 +133,9 @@ get_default() {
   if (stencil_bits > 0) {
     default_props.set_stencil_bits(stencil_bits);
   }
+  if (accum_bits > 0) {
+    default_props.set_accum_bits(accum_bits);
+  }
   if (multisamples > 0) {
     default_props.set_multisamples(multisamples);
   }