On 07/19/2013 08:18 AM, Marek Olšák wrote:
See documentation in mtypes.h.
---
  src/gallium/include/state_tracker/st_api.h         |  5 ++--
  .../state_trackers/dri/common/dri_context.c        | 10 ++++---
  src/gallium/state_trackers/dri/common/dri_screen.c |  3 +-
  src/gallium/state_trackers/osmesa/osmesa.c         |  1 +
  src/glsl/glsl_parser_extras.cpp                    |  3 +-
  src/mesa/drivers/dri/common/drirc                  | 34 ++++++++++++++++++++++
  src/mesa/drivers/dri/common/xmlpool/t_options.h    |  5 ++++
  src/mesa/main/mtypes.h                             |  6 ++++
  src/mesa/state_tracker/st_extensions.c             |  5 ++++
  9 files changed, 64 insertions(+), 8 deletions(-)

diff --git a/src/gallium/include/state_tracker/st_api.h 
b/src/gallium/include/state_tracker/st_api.h
index 2c178b6..539dec0 100644
--- a/src/gallium/include/state_tracker/st_api.h
+++ b/src/gallium/include/state_tracker/st_api.h
@@ -239,9 +239,10 @@ struct st_visual
   */
  struct st_config_options
  {
-   boolean force_glsl_extensions_warn;
-   boolean disable_glsl_line_continuations;
     boolean disable_blend_func_extended;
+   boolean disable_glsl_line_continuations;
+   boolean force_glsl_extensions_warn;
+   unsigned force_glsl_version;
     boolean force_s3tc_enable;
  };

diff --git a/src/gallium/state_trackers/dri/common/dri_context.c 
b/src/gallium/state_trackers/dri/common/dri_context.c
index b5445f8..b4ee2c8 100644
--- a/src/gallium/state_trackers/dri/common/dri_context.c
+++ b/src/gallium/state_trackers/dri/common/dri_context.c
@@ -42,12 +42,14 @@
  static void dri_fill_st_options(struct st_config_options *options,
                                  const struct driOptionCache * optionCache)
  {
-   options->force_glsl_extensions_warn =
-      driQueryOptionb(optionCache, "force_glsl_extensions_warn");
-   options->disable_glsl_line_continuations =
-      driQueryOptionb(optionCache, "disable_glsl_line_continuations");
     options->disable_blend_func_extended =
        driQueryOptionb(optionCache, "disable_blend_func_extended");
+   options->disable_glsl_line_continuations =
+      driQueryOptionb(optionCache, "disable_glsl_line_continuations");
+   options->force_glsl_extensions_warn =
+      driQueryOptionb(optionCache, "force_glsl_extensions_warn");
+   options->force_glsl_version =
+      driQueryOptioni(optionCache, "force_glsl_version");
     options->force_s3tc_enable =
        driQueryOptionb(optionCache, "force_s3tc_enable");
  }
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.c 
b/src/gallium/state_trackers/dri/common/dri_screen.c
index bb4d5b6..6e999b1 100644
--- a/src/gallium/state_trackers/dri/common/dri_screen.c
+++ b/src/gallium/state_trackers/dri/common/dri_screen.c
@@ -63,6 +63,7 @@ PUBLIC const char __driConfigOptions[] =
           DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
           DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
           DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
+         DRI_CONF_FORCE_GLSL_VERSION(0)
        DRI_CONF_SECTION_END

        DRI_CONF_SECTION_MISCELLANEOUS
@@ -72,7 +73,7 @@ PUBLIC const char __driConfigOptions[] =

  #define false 0

-static const uint __driNConfigOptions = 11;
+static const uint __driNConfigOptions = 12;

  static const __DRIconfig **
  dri_fill_in_modes(struct dri_screen *screen)
diff --git a/src/gallium/state_trackers/osmesa/osmesa.c 
b/src/gallium/state_trackers/osmesa/osmesa.c
index 594372b..5b63b8b 100644
--- a/src/gallium/state_trackers/osmesa/osmesa.c
+++ b/src/gallium/state_trackers/osmesa/osmesa.c
@@ -546,6 +546,7 @@ OSMesaCreateContextExt(GLenum format, GLint depthBits, 
GLint stencilBits,
     attribs.options.disable_blend_func_extended = FALSE;
     attribs.options.disable_glsl_line_continuations = FALSE;
     attribs.options.force_s3tc_enable = FALSE;
+   attribs.options.force_glsl_version = 0;

     osmesa_init_st_visual(&attribs.visual,
                           PIPE_FORMAT_R8G8B8A8_UNORM,
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 84c4777..9f44c20 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -74,7 +74,8 @@ _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct 
gl_context *_ctx,
     this->num_builtins_to_link = 0;

     /* Set default language version and extensions */
-   this->language_version = 110;
+   this->language_version = ctx->Const.ForceGLSLVersion ?
+                            ctx->Const.ForceGLSLVersion : 110;
     this->es_shader = false;
     this->ARB_texture_rectangle_enable = true;

diff --git a/src/mesa/drivers/dri/common/drirc 
b/src/mesa/drivers/dri/common/drirc
index 7c2d3ba..b5430ed 100644
--- a/src/mesa/drivers/dri/common/drirc
+++ b/src/mesa/drivers/dri/common/drirc
@@ -1,3 +1,27 @@
+<!--
+
+============================================
+Application bugs worked around in this file:
+============================================
+
+* Various Unigine products don't use the #version and #extension GLSL
+  directives, meaning they only get GLSL 1.10 and no extensions for their
+  shaders.
+  Enabling all extensions for Unigine fixes most issues, but the GLSL version
+  is still 1.10.
+
+* Unigine Heaven 3.0 with ARB_texture_multisample uses a "ivec4 * vec4"
+  expression, which fails to compile with GLSL 1.10.
+  Adding "#version 130" fixes this.
+
+* Unigine Heaven 3.0 with ARB_shader_bit_encoding uses the uint keyword, which
+  fails to compile with GLSL 1.10.
+  Adding "#version 130" fixes this.
+
+TODO: document the other workarounds.
+
+-->
+
  <driconf>
      <!-- Please always enable app-specific workarounds for all drivers and
           screens. -->
@@ -6,30 +30,40 @@
              <option name="force_glsl_extensions_warn" value="true" />
              <option name="disable_blend_func_extended" value="true" />
        </application>
+
          <application name="Unigine Tropics" executable="Tropics">
              <option name="force_glsl_extensions_warn" value="true" />
              <option name="disable_blend_func_extended" value="true" />
        </application>
+
          <application name="Unigine Heaven (32-bit)" executable="heaven_x86">
              <option name="force_glsl_extensions_warn" value="true" />
              <option name="disable_blend_func_extended" value="true" />
+            <option name="force_glsl_version" value="130" />
        </application>
+
          <application name="Unigine Heaven (64-bit)" executable="heaven_x64">
              <option name="force_glsl_extensions_warn" value="true" />
              <option name="disable_blend_func_extended" value="true" />
+            <option name="force_glsl_version" value="130" />
        </application>
+
          <application name="Unigine OilRush (32-bit)" executable="OilRush_x86">
              <option name="disable_blend_func_extended" value="true" />
        </application>
+
          <application name="Unigine OilRush (64-bit)" executable="OilRush_x64">
              <option name="disable_blend_func_extended" value="true" />
        </application>
+
          <application name="Savage 2" executable="savage2.bin">
              <option name="disable_glsl_line_continuations" value="true" />
          </application>
+
          <application name="Topogun (32-bit)" executable="topogun32">
              <option name="always_have_depth_buffer" value="true" />
          </application>
+
          <application name="Topogun (64-bit)" executable="topogun64">
              <option name="always_have_depth_buffer" value="true" />
          </application>
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h 
b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index 5b0f961..a332c24 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -95,6 +95,11 @@ DRI_CONF_OPT_BEGIN_B(disable_glsl_line_continuations, def) \
          DRI_CONF_DESC(en,gettext("Disable backslash-based line continuations in 
GLSL source")) \
  DRI_CONF_OPT_END

+#define DRI_CONF_FORCE_GLSL_VERSION(def) \
+DRI_CONF_OPT_BEGIN_V(force_glsl_version, int, def, "0:999") \
+        DRI_CONF_DESC(en,gettext("Force a default GLSL version before shader 
compilation")) \

I would change this to "Force a default GLSL version for shaders that lack an explicit #version line."

+DRI_CONF_OPT_END
+


  /**
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 4042e9a..5bb6807 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2874,6 +2874,12 @@ struct gl_constants
     GLboolean ForceGLSLExtensionsWarn;

     /**
+    * If non-zero, forces GLSL shaders without the #version directive to behave
+    * as if they began with "#version ForceGLSLVersion".
+    */
+   GLuint ForceGLSLVersion;
+
+   /**
      * Does the driver support real 32-bit integers?  (Otherwise, integers are
      * simulated via floats.)
      */
diff --git a/src/mesa/state_tracker/st_extensions.c 
b/src/mesa/state_tracker/st_extensions.c
index 6bc1284..a145776 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -598,6 +598,11 @@ void st_init_extensions(struct st_context *st)

     _mesa_override_glsl_version(st->ctx);

+   if (st->options.force_glsl_version > 0 &&
+       st->options.force_glsl_version <= ctx->Const.GLSLVersion) {
+      ctx->Const.ForceGLSLVersion = st->options.force_glsl_version;
+   }
+
     if (ctx->Const.GLSLVersion >= 130) {
        ctx->Const.NativeIntegers = GL_TRUE;
        ctx->Const.MaxClipPlanes = 8;


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