On 30 June 2012 11:50, Olivier Galibert <<a href="mailto:galibert@pobox.com" target="_blank">galibert@pobox.com</a>> wrote: <div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> At that point, all interpolation piglit tests involving fixed clipping work as long as there's no noperspective. Signed-off-by: Olivier Galibert <<a href="mailto:galibert@pobox.com">galibert@pobox.com</a>> --- src/mesa/drivers/dri/i965/brw_clip.c | 10 ++++- src/mesa/drivers/dri/i965/brw_clip.h | 6 +-- src/mesa/drivers/dri/i965/brw_clip_line.c | 6 +-- src/mesa/drivers/dri/i965/brw_clip_tri.c | 20 ++++----- src/mesa/drivers/dri/i965/brw_clip_unfilled.c | 2 +- src/mesa/drivers/dri/i965/brw_clip_util.c | 56 +++++++------------------ 6 files changed, 41 insertions(+), 59 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_clip.c b/src/mesa/drivers/dri/i965/brw_clip.c index 52e8c47..952eb4a 100644 --- a/src/mesa/drivers/dri/i965/brw_clip.c +++ b/src/mesa/drivers/dri/i965/brw_clip.c @@ -215,7 +215,7 @@ brw_upload_clip_prog(struct brw_context *brw) struct intel_context *intel = &brw->intel; struct gl_context *ctx = &intel->ctx; struct brw_clip_prog_key key; - + int i; memset(&key, 0, sizeof(key)); brw_lookup_interpolation(brw); @@ -227,7 +227,13 @@ brw_upload_clip_prog(struct brw_context *brw) /* CACHE_NEW_VS_PROG (also part of VUE map) */ key.attrs = brw->vs.prog_data->outputs_written; /* _NEW_LIGHT */ - key.do_flat_shading = (ctx->Light.ShadeModel == GL_FLAT); + key.has_flat_shading = 0; + for (i = 0; i < BRW_VERT_RESULT_MAX; i++) { + if (brw_get_interpolation_mode(brw, i) == INTERP_QUALIFIER_FLAT) { + key.has_flat_shading = 1; + break; + } + } key.pv_first = (ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION); brw_copy_interpolation_modes(brw, key.interpolation_mode); /* _NEW_TRANSFORM (also part of VUE map)*/ diff --git a/src/mesa/drivers/dri/i965/brw_clip.h b/src/mesa/drivers/dri/i965/brw_clip.h index 6f811ae..0ea0394 100644 --- a/src/mesa/drivers/dri/i965/brw_clip.h +++ b/src/mesa/drivers/dri/i965/brw_clip.h @@ -46,7 +46,7 @@ struct brw_clip_prog_key { GLbitfield64 interpolation_mode[2]; /* copy of the main context */ GLuint primitive:4; GLuint nr_userclip:4; - GLuint do_flat_shading:1; + GLuint has_flat_shading:1; GLuint pv_first:1; GLuint do_unfilled:1; GLuint fill_cw:2; /* includes cull information */ @@ -166,8 +166,8 @@ void brw_clip_kill_thread(struct brw_clip_compile *c); struct brw_reg brw_clip_plane_stride( struct brw_clip_compile *c ); struct brw_reg brw_clip_plane0_address( struct brw_clip_compile *c ); -void brw_clip_copy_colors( struct brw_clip_compile *c, - GLuint to, GLuint from ); +void brw_clip_copy_flatshaded_attributes( struct brw_clip_compile *c, + GLuint to, GLuint from ); void brw_clip_init_clipmask( struct brw_clip_compile *c ); diff --git a/src/mesa/drivers/dri/i965/brw_clip_line.c b/src/mesa/drivers/dri/i965/brw_clip_line.c index 6cf2bd2..729d8c0 100644 --- a/src/mesa/drivers/dri/i965/brw_clip_line.c +++ b/src/mesa/drivers/dri/i965/brw_clip_line.c @@ -271,11 +271,11 @@ void brw_emit_line_clip( struct brw_clip_compile *c ) brw_clip_line_alloc_regs(c); brw_clip_init_ff_sync(c); - if (c->key.do_flat_shading) { + if (c->key.has_flat_shading) { if (c->key.pv_first) - brw_clip_copy_colors(c, 1, 0); + brw_clip_copy_flatshaded_attributes(c, 1, 0); else - brw_clip_copy_colors(c, 0, 1); + brw_clip_copy_flatshaded_attributes(c, 0, 1); } clip_and_emit_line(c); diff --git a/src/mesa/drivers/dri/i965/brw_clip_tri.c b/src/mesa/drivers/dri/i965/brw_clip_tri.c index a29f8e0..71225f5 100644 --- a/src/mesa/drivers/dri/i965/brw_clip_tri.c +++ b/src/mesa/drivers/dri/i965/brw_clip_tri.c @@ -187,8 +187,8 @@ void brw_clip_tri_flat_shade( struct brw_clip_compile *c ) brw_IF(p, BRW_EXECUTE_1); { - brw_clip_copy_colors(c, 1, 0); - brw_clip_copy_colors(c, 2, 0); + brw_clip_copy_flatshaded_attributes(c, 1, 0); + brw_clip_copy_flatshaded_attributes(c, 2, 0); } brw_ELSE(p); { @@ -200,19 +200,19 @@ void brw_clip_tri_flat_shade( struct brw_clip_compile *c ) brw_imm_ud(_3DPRIM_TRIFAN)); brw_IF(p, BRW_EXECUTE_1); { - brw_clip_copy_colors(c, 0, 1); - brw_clip_copy_colors(c, 2, 1); + brw_clip_copy_flatshaded_attributes(c, 0, 1); + brw_clip_copy_flatshaded_attributes(c, 2, 1); } brw_ELSE(p); { - brw_clip_copy_colors(c, 1, 0); - brw_clip_copy_colors(c, 2, 0); + brw_clip_copy_flatshaded_attributes(c, 1, 0); + brw_clip_copy_flatshaded_attributes(c, 2, 0); } brw_ENDIF(p); } else { - brw_clip_copy_colors(c, 0, 2); - brw_clip_copy_colors(c, 1, 2); + brw_clip_copy_flatshaded_attributes(c, 0, 2); + brw_clip_copy_flatshaded_attributes(c, 1, 2); } } brw_ENDIF(p); @@ -606,8 +606,8 @@ void brw_emit_tri_clip( struct brw_clip_compile *c ) * flatshading, need to apply the flatshade here because we don't * respect the PV when converting to trifan for emit: */ - if (c->key.do_flat_shading) - brw_clip_tri_flat_shade(c); + if (c->key.has_flat_shading) + brw_clip_tri_flat_shade(c); if ((c->key.clip_mode == BRW_CLIPMODE_NORMAL) || (c->key.clip_mode == BRW_CLIPMODE_KERNEL_CLIP)) diff --git a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c index 03c7d42..96f9a84 100644 --- a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c +++ b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c @@ -502,7 +502,7 @@ void brw_emit_unfilled_clip( struct brw_clip_compile *c ) /* Need to do this whether we clip or not: */ - if (c->key.do_flat_shading) + if (c->key.has_flat_shading) brw_clip_tri_flat_shade(c); brw_clip_init_clipmask(c); diff --git a/src/mesa/drivers/dri/i965/brw_clip_util.c b/src/mesa/drivers/dri/i965/brw_clip_util.c index bf8cc3a..7b0205a 100644 --- a/src/mesa/drivers/dri/i965/brw_clip_util.c +++ b/src/mesa/drivers/dri/i965/brw_clip_util.c @@ -165,7 +165,7 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c, vert_result == VERT_RESULT_CLIP_DIST1) { /* PSIZ doesn't need interpolation because it isn't used by the * fragment shader. CLIP_DIST0 and CLIP_DIST1 don't need - * intepolation because on pre-GEN6, these are just placeholder VUE + * interpolation because on pre-GEN6, these are just placeholder VUE </blockquote><div> Heh. Thanks for fixing my typo :) </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> * slots that don't perform any action. */ } else if (vert_result < VERT_RESULT_MAX) { @@ -291,49 +291,25 @@ struct brw_reg brw_clip_plane_stride( struct brw_clip_compile *c ) } -/* If flatshading, distribute color from provoking vertex prior to +/* Distribute flatshaded attributes from provoking vertex prior to * clipping. */ -void brw_clip_copy_colors( struct brw_clip_compile *c, - GLuint to, GLuint from ) +void brw_clip_copy_flatshaded_attributes( struct brw_clip_compile *c, + GLuint to, GLuint from ) { struct brw_compile *p = &c->func; - - if (brw_clip_have_vert_result(c, VERT_RESULT_COL0)) - brw_MOV(p, - byte_offset(c->reg.vertex[to], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_COL0)), - byte_offset(c->reg.vertex[from], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_COL0))); - - if (brw_clip_have_vert_result(c, VERT_RESULT_COL1)) - brw_MOV(p, - byte_offset(c->reg.vertex[to], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_COL1)), - byte_offset(c->reg.vertex[from], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_COL1))); - - if (brw_clip_have_vert_result(c, VERT_RESULT_BFC0)) - brw_MOV(p, - byte_offset(c->reg.vertex[to], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_BFC0)), - byte_offset(c->reg.vertex[from], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_BFC0))); - - if (brw_clip_have_vert_result(c, VERT_RESULT_BFC1)) - brw_MOV(p, - byte_offset(c->reg.vertex[to], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_BFC1)), - byte_offset(c->reg.vertex[from], - brw_vert_result_to_offset(&c->vue_map, - VERT_RESULT_BFC1))); + struct brw_context *brw = p->brw; + GLuint i; + + for (i = 0; i < BRW_VERT_RESULT_MAX; i++) { + if (brw_get_interpolation_mode(brw, i) == INTERP_QUALIFIER_FLAT) { + brw_MOV(p, + byte_offset(c->reg.vertex[to], + brw_vue_slot_to_offset(i)), + byte_offset(c->reg.vertex[from], + brw_vue_slot_to_offset(i))); + } + } } </blockquote><div> Ah, a loop! This is so much better. Thanks. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> -- 1.7.10.rc3.1.gb306 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> This patch is: Reviewed-by: Paul Berry <<a href="mailto:stereotype441@gmail.com">stereotype441@gmail.com</a>>