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author | Rob Clark <robclark@freedesktop.org> | 2016-06-24 14:28:51 -0400 |
---|---|---|
committer | Rob Clark <robdclark@gmail.com> | 2016-07-02 09:00:19 -0400 |
commit | f78a6b1ce398a537d77c25b1a93f156109086975 (patch) | |
tree | 0d891e0156328ae8462f1e7cad56b373e7ab8607 /src/mesa/drivers | |
parent | 202710d11057dfe4416770752cf5fd5b3f766999 (diff) | |
download | external_mesa3d-f78a6b1ce398a537d77c25b1a93f156109086975.zip external_mesa3d-f78a6b1ce398a537d77c25b1a93f156109086975.tar.gz external_mesa3d-f78a6b1ce398a537d77c25b1a93f156109086975.tar.bz2 |
glsl: add driconf to zero-init unintialized vars
Some games are sloppy.. perhaps because it is defined behavior for DX or
perhaps because nv blob driver defaults things to zero.
So add driconf param to force uninitialized variables to default to zero.
This issue was observed with rust, from steam store. But has surfaced
elsewhere in the past.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r-- | src/mesa/drivers/dri/common/drirc | 4 | ||||
-rw-r--r-- | src/mesa/drivers/dri/common/xmlpool/t_options.h | 5 | ||||
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.c | 2 | ||||
-rw-r--r-- | src/mesa/drivers/dri/i965/intel_screen.c | 4 |
4 files changed, 14 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/common/drirc b/src/mesa/drivers/dri/common/drirc index 3912d8b..af84ee8 100644 --- a/src/mesa/drivers/dri/common/drirc +++ b/src/mesa/drivers/dri/common/drirc @@ -96,5 +96,9 @@ TODO: document the other workarounds. <application name="Warsow (64-bit)" executable="warsow.x86_64"> <option name="allow_glsl_extension_directive_midshader" value="true" /> </application> + + <application name="Rust" executable="rust"> + <option name="glsl_zero_init" value="true"/> + </application> </device> </driconf> diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h index 4b298a4..341c376 100644 --- a/src/mesa/drivers/dri/common/xmlpool/t_options.h +++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h @@ -337,7 +337,10 @@ DRI_CONF_OPT_BEGIN_B(always_have_depth_buffer, def) \ DRI_CONF_DESC(en,gettext("Create all visuals with a depth buffer")) \ DRI_CONF_OPT_END - +#define DRI_CONF_GLSL_ZERO_INIT(def) \ +DRI_CONF_OPT_BEGIN_B(glsl_zero_init, def) \ + DRI_CONF_DESC(en,gettext("Force uninitialized variables to default to zero")) \ +DRI_CONF_OPT_END /** * \brief Initialization configuration options diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 5e3c9d1..3f0c2e3 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -827,6 +827,8 @@ brw_process_driconf_options(struct brw_context *brw) ctx->Const.AllowGLSLExtensionDirectiveMidShader = driQueryOptionb(options, "allow_glsl_extension_directive_midshader"); + ctx->Const.GLSLZeroInit = driQueryOptionb(options, "glsl_zero_init"); + brw->dual_color_blend_by_location = driQueryOptionb(options, "dual_color_blend_by_location"); } diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c index 1c71e09..432ab7b 100644 --- a/src/mesa/drivers/dri/i965/intel_screen.c +++ b/src/mesa/drivers/dri/i965/intel_screen.c @@ -88,6 +88,10 @@ DRI_CONF_BEGIN DRI_CONF_DESC(en, "Perform code generation at shader link time.") DRI_CONF_OPT_END DRI_CONF_SECTION_END + + DRI_CONF_SECTION_MISCELLANEOUS + DRI_CONF_GLSL_ZERO_INIT("false") + DRI_CONF_SECTION_END DRI_CONF_END }; |