From 99070c6daad72c96d517ffb18185c8b21b9d67f2 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 1 Aug 2014 16:02:37 -0700 Subject: [PATCH] vc4: Add proper translation from Zc to Zs for vertex output. This fixes the remaining failure in depthfunc. --- src/gallium/drivers/vc4/vc4_program.c | 16 +++++++++++++++- src/gallium/drivers/vc4/vc4_qir.h | 3 +++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c index 963e6eb3b44..82526300879 100644 --- a/src/gallium/drivers/vc4/vc4_program.c +++ b/src/gallium/drivers/vc4/vc4_program.c @@ -778,7 +778,14 @@ emit_zs_write(struct tgsi_to_qir *trans, struct qreg rcp_w) { struct qcompile *c = trans->c; - qir_VPM_WRITE(c, qir_FMUL(c, trans->outputs[2], rcp_w)); + struct qreg zscale = add_uniform(trans, QUNIFORM_VIEWPORT_Z_SCALE, 0); + struct qreg zoffset = add_uniform(trans, QUNIFORM_VIEWPORT_Z_OFFSET, 0); + + qir_VPM_WRITE(c, qir_FMUL(c, qir_FADD(c, qir_FMUL(c, + trans->outputs[2], + zscale), + zoffset), + rcp_w)); } static void @@ -1241,6 +1248,13 @@ vc4_write_uniforms(struct vc4_context *vc4, struct vc4_compiled_shader *shader, -16.0f / 2.0f)); break; + case QUNIFORM_VIEWPORT_Z_OFFSET: + cl_u32(&vc4->uniforms, fui(vc4->viewport.translate[2])); + break; + case QUNIFORM_VIEWPORT_Z_SCALE: + cl_u32(&vc4->uniforms, fui(vc4->viewport.scale[2])); + break; + case QUNIFORM_TEXTURE_CONFIG_P0: write_texture_p0(vc4, texstate, uinfo->data[i]); break; diff --git a/src/gallium/drivers/vc4/vc4_qir.h b/src/gallium/drivers/vc4/vc4_qir.h index b578e7e0b9e..5d1f088ee37 100644 --- a/src/gallium/drivers/vc4/vc4_qir.h +++ b/src/gallium/drivers/vc4/vc4_qir.h @@ -140,6 +140,9 @@ enum quniform_contents { QUNIFORM_VIEWPORT_Y_SCALE, /** @} */ + QUNIFORM_VIEWPORT_Z_OFFSET, + QUNIFORM_VIEWPORT_Z_SCALE, + /** * A reference to a texture config parameter 0 uniform. * -- 2.30.2