From 447bf1fb524f1f451baa67ea172caa2ed51369c7 Mon Sep 17 00:00:00 2001 From: Chris Forbes Date: Wed, 24 Apr 2013 06:44:02 +1200 Subject: [PATCH] i965: report correct sample positions From low to high bits, the sample positions are packed y0,x0,y1,x1... Fixes arb_texture_multisample-sample-position piglit. Signed-off-by: Chris Forbes Reviewed-by: Paul Berry --- src/mesa/drivers/dri/i965/gen6_multisample_state.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/mesa/drivers/dri/i965/gen6_multisample_state.c b/src/mesa/drivers/dri/i965/gen6_multisample_state.c index 35071e8..534abc2 100644 --- a/src/mesa/drivers/dri/i965/gen6_multisample_state.c +++ b/src/mesa/drivers/dri/i965/gen6_multisample_state.c @@ -83,14 +83,14 @@ gen6_get_sample_position(struct gl_context *ctx, break; case 4: { uint8_t val = (uint8_t)(sample_positions_4x[0] >> (8*index)); - result[0] = (val & 0xf) / 16.0f; - result[1] = ((val >> 4) & 0xf) / 16.0f; + result[0] = ((val >> 4) & 0xf) / 16.0f; + result[1] = (val & 0xf) / 16.0f; break; } case 8: { uint8_t val = (uint8_t)(sample_positions_8x[index>>2] >> (8*(index & 3))); - result[0] = (val & 0xf) / 16.0f; - result[1] = ((val >> 4) & 0xf) / 16.0f; + result[0] = ((val >> 4) & 0xf) / 16.0f; + result[1] = (val & 0xf) / 16.0f; break; } default: -- 2.7.4