i915g: Reduce ARB_fp max tex indirections to match i915c.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12436>

diff --git a/src/gallium/drivers/i915/ci/piglit-i915-g33-fails.txt b/src/gallium/drivers/i915/ci/piglit-i915-g33-fails.txt
index abb0931..0176e2e 100644 (file)
--- a/src/gallium/drivers/i915/ci/piglit-i915-g33-fails.txt
+++ b/src/gallium/drivers/i915/ci/piglit-i915-g33-fails.txt
@@ -209,7 +209,11 @@ spec@arb_depth_texture@texwrap formats bordercolor@GL_DEPTH_COMPONENT32- border
 spec@arb_es2_compatibility@arb_es2_compatibility-drawbuffers,Fail
 spec@arb_es2_compatibility@texwrap formats bordercolor,Fail
 spec@arb_es2_compatibility@texwrap formats bordercolor@GL_RGB565- border color only,Fail
+
+# fails at 4 samples (for our 4 supported indirections) because the 1D coordinate workaround
+# causes an extra texture indirection phase.
 spec@arb_fragment_program@fp-indirections2,Fail
+
 spec@arb_fragment_program_shadow@tex-shadow1d,Fail
 spec@arb_fragment_program_shadow@tex-shadow2d,Fail
 spec@arb_fragment_program_shadow@tex-shadow2drect,Fail

diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index dbe765d..62c9f34 100644 (file)
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -226,7 +226,7 @@ i915_get_shader_param(struct pipe_screen *screen, enum pipe_shader_type shader,
       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
          return I915_MAX_TEX_INSN;
       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
-         return 8;
+         return 4;
       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
          return 0;
       case PIPE_SHADER_CAP_MAX_INPUTS: