From: Xiang, Haihao Date: Thu, 11 Dec 2008 06:03:00 +0000 (+0800) Subject: i915: fallback for cube map texture. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c8b505d8260cccf289c947c629471df8f5c81c0d;p=mesa.git i915: fallback for cube map texture. The i915 (and related graphics cores) only support TEXCOORDMODE_CLAMP and TEXCOORDMODE_CUBE when using cube map texture coordinates, so fall back to software rendering for other modes to avoid potential gpu hang issue. This fixes scorched3d issue on 945GM(see bug 14539). --- diff --git a/src/mesa/drivers/dri/i915/i915_texstate.c b/src/mesa/drivers/dri/i915/i915_texstate.c index d1b0dcdf319..d53e2cbd5aa 100644 --- a/src/mesa/drivers/dri/i915/i915_texstate.c +++ b/src/mesa/drivers/dri/i915/i915_texstate.c @@ -295,6 +295,13 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) wt == GL_CLAMP_TO_BORDER || wr == GL_CLAMP_TO_BORDER)) return GL_FALSE; + /* Only support TEXCOORDMODE_CLAMP_EDGE and TEXCOORDMODE_CUBE (not + * used) when using cube map texture coordinates + */ + if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB && + (((ws != GL_CLAMP) && (ws != GL_CLAMP_TO_EDGE)) || + ((wr != GL_CLAMP) && (wr != GL_CLAMP_TO_EDGE)))) + return GL_FALSE; state[I915_TEXREG_SS3] = ss3; /* SS3_NORMALIZED_COORDS */