Commit e7a09193 authored by Marek Olšák's avatar Marek Olšák

mesa: replace ctx->Polygon._FrontBit with a helper function

Reviewed-by: default avatarNicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul's avatarBrian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri's avatarTimothy Arceri <tarceri@itsqueeze.com>
parent c19b08b0
......@@ -39,6 +39,7 @@
#include "main/state.h"
#include "main/dd.h"
#include "main/fbobject.h"
#include "main/state.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
......
......@@ -181,7 +181,7 @@ brw_upload_clip_prog(struct brw_context *brw)
key.offset_clamp = ctx->Polygon.OffsetClamp * ctx->DrawBuffer->_MRD;
}
if (!ctx->Polygon._FrontBit) {
if (!brw->polygon_front_bit) {
key.fill_ccw = fill_front;
key.fill_cw = fill_back;
key.offset_ccw = offset_front;
......
......@@ -44,6 +44,7 @@
#include "main/texobj.h"
#include "main/framebuffer.h"
#include "main/stencil.h"
#include "main/state.h"
#include "vbo/vbo_context.h"
......@@ -209,6 +210,9 @@ intel_update_state(struct gl_context * ctx)
_mesa_stencil_is_write_enabled(ctx, brw->stencil_two_sided);
}
if (new_state & _NEW_POLYGON)
brw->polygon_front_bit = _mesa_polygon_get_front_bit(ctx);
intel_prepare_render(brw);
/* Resolve the depth buffer's HiZ buffer. */
......
......@@ -778,6 +778,8 @@ struct brw_context
bool stencil_enabled;
bool stencil_two_sided;
bool stencil_write_enabled;
/** Derived polygon state. */
bool polygon_front_bit; /**< 0=GL_CCW, 1=GL_CW */
struct isl_device isl_dev;
......
......@@ -161,7 +161,7 @@ brw_upload_sf_prog(struct brw_context *brw)
* face orientation, just as we invert the viewport in
* sf_unit_create_from_key().
*/
key.frontface_ccw = ctx->Polygon._FrontBit == render_to_fbo;
key.frontface_ccw = brw->polygon_front_bit == render_to_fbo;
}
if (!brw_search_cache(&brw->cache, BRW_CACHE_SF_PROG,
......
/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
Intel funded Tungsten Graphics to
develop this 3D driver.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial
portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**********************************************************************/
/*
* Authors:
* Keith Whitwell <keithw@vmware.com>
*/
#include "main/mtypes.h"
#include "main/macros.h"
#include "main/fbobject.h"
#include "main/viewport.h"
#include "intel_batchbuffer.h"
#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
#include "brw_util.h"
static void upload_sf_unit( struct brw_context *brw )
{
struct gl_context *ctx = &brw->ctx;
struct brw_sf_unit_state *sf;
int chipset_max_threads;
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
sf = brw_state_batch(brw, sizeof(*sf), 64, &brw->sf.state_offset);
memset(sf, 0, sizeof(*sf));
/* BRW_NEW_PROGRAM_CACHE | BRW_NEW_SF_PROG_DATA */
sf->thread0.grf_reg_count = ALIGN(brw->sf.prog_data->total_grf, 16) / 16 - 1;
sf->thread0.kernel_start_pointer =
brw_program_reloc(brw,
brw->sf.state_offset +
offsetof(struct brw_sf_unit_state, thread0),
brw->sf.prog_offset +
(sf->thread0.grf_reg_count << 1)) >> 6;
sf->thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
sf->thread3.dispatch_grf_start_reg = 3;
sf->thread3.urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET;
/* BRW_NEW_SF_PROG_DATA */
sf->thread3.urb_entry_read_length = brw->sf.prog_data->urb_read_length;
/* BRW_NEW_URB_FENCE */
sf->thread4.nr_urb_entries = brw->urb.nr_sf_entries;
sf->thread4.urb_entry_allocation_size = brw->urb.sfsize - 1;
/* Each SF thread produces 1 PUE, and there can be up to 24 (Pre-Ironlake) or
* 48 (Ironlake) threads.
*/
if (brw->gen == 5)
chipset_max_threads = 48;
else
chipset_max_threads = 24;
/* BRW_NEW_URB_FENCE */
sf->thread4.max_threads = MIN2(chipset_max_threads,
brw->urb.nr_sf_entries) - 1;
/* BRW_NEW_SF_VP */
sf->sf5.sf_viewport_state_offset = (brw->batch.bo->offset64 +
brw->sf.vp_offset) >> 5; /* reloc */
sf->sf5.viewport_transform = 1;
sf->sf6.scissor = 1;
/* _NEW_POLYGON */
if (brw->polygon_front_bit)
sf->sf5.front_winding = BRW_FRONTWINDING_CW;
else
sf->sf5.front_winding = BRW_FRONTWINDING_CCW;
/* _NEW_BUFFERS
* The viewport is inverted for rendering to a FBO, and that inverts
* polygon front/back orientation.
*/
sf->sf5.front_winding ^= render_to_fbo;
/* _NEW_POLYGON */
switch (ctx->Polygon.CullFlag ? ctx->Polygon.CullFaceMode : GL_NONE) {
case GL_FRONT:
sf->sf6.cull_mode = BRW_CULLMODE_FRONT;
break;
case GL_BACK:
sf->sf6.cull_mode = BRW_CULLMODE_BACK;
break;
case GL_FRONT_AND_BACK:
sf->sf6.cull_mode = BRW_CULLMODE_BOTH;
break;
case GL_NONE:
sf->sf6.cull_mode = BRW_CULLMODE_NONE;
break;
default:
unreachable("not reached");
}
/* _NEW_LINE */
sf->sf6.line_width = U_FIXED(brw_get_line_width(brw), 1);
if (ctx->Line.SmoothFlag) {
sf->sf6.aa_enable = 1;
sf->sf6.line_endcap_aa_region_width = 1;
}
sf->sf6.point_rast_rule = BRW_RASTRULE_UPPER_RIGHT;
/* _NEW_POINT */
sf->sf7.sprite_point = ctx->Point.PointSprite;
float point_sz;
point_sz = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize);
point_sz = CLAMP(point_sz, 0.125f, 255.875f);
sf->sf7.point_size = U_FIXED(point_sz, 3);
/* _NEW_PROGRAM | _NEW_POINT, BRW_NEW_VUE_MAP_GEOM_OUT */
sf->sf7.use_point_size_state = use_state_point_size(brw);
sf->sf7.aa_line_distance_mode = brw->is_g4x || brw->gen == 5;
/* might be BRW_NEW_PRIMITIVE if we have to adjust pv for polygons:
* _NEW_LIGHT
*/
if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION) {
sf->sf7.trifan_pv = 2;
sf->sf7.linestrip_pv = 1;
sf->sf7.tristrip_pv = 2;
} else {
sf->sf7.trifan_pv = 1;
sf->sf7.linestrip_pv = 0;
sf->sf7.tristrip_pv = 0;
}
sf->sf7.line_last_pixel_enable = 0;
/* Set bias for OpenGL rasterization rules:
*/
sf->sf6.dest_org_vbias = 0x8;
sf->sf6.dest_org_hbias = 0x8;
/* STATE_PREFETCH command description describes this state as being
* something loaded through the GPE (L2 ISC), so it's INSTRUCTION domain.
*/
/* Emit SF viewport relocation */
brw_emit_reloc(&brw->batch,
brw->sf.state_offset +
offsetof(struct brw_sf_unit_state, sf5),
brw->batch.bo,
brw->sf.vp_offset | sf->sf5.front_winding |
(sf->sf5.viewport_transform << 1),
I915_GEM_DOMAIN_INSTRUCTION, 0);
brw->ctx.NewDriverState |= BRW_NEW_GEN4_UNIT_STATE;
}
const struct brw_tracked_state brw_sf_unit = {
.dirty = {
.mesa = _NEW_BUFFERS |
_NEW_LIGHT |
_NEW_LINE |
_NEW_POINT |
_NEW_POLYGON |
_NEW_PROGRAM,
.brw = BRW_NEW_BATCH |
BRW_NEW_BLORP |
BRW_NEW_PROGRAM_CACHE |
BRW_NEW_SF_PROG_DATA |
BRW_NEW_SF_VP |
BRW_NEW_VUE_MAP_GEOM_OUT |
BRW_NEW_URB_FENCE,
},
.emit = upload_sf_unit,
};
......@@ -1274,7 +1274,7 @@ genX(upload_clip_state)(struct brw_context *brw)
#endif
#if GEN_GEN == 7
clip.FrontWinding = ctx->Polygon._FrontBit == _mesa_is_user_fbo(fb);
clip.FrontWinding = brw->polygon_front_bit == _mesa_is_user_fbo(fb);
if (ctx->Polygon.CullFlag) {
switch (ctx->Polygon.CullFaceMode) {
......@@ -1441,7 +1441,7 @@ genX(upload_sf)(struct brw_context *brw)
#if GEN_GEN <= 7
/* _NEW_POLYGON */
sf.FrontWinding = ctx->Polygon._FrontBit == render_to_fbo;
sf.FrontWinding = brw->polygon_front_bit == render_to_fbo;
#if GEN_GEN >= 6
sf.GlobalDepthOffsetEnableSolid = ctx->Polygon.OffsetFill;
sf.GlobalDepthOffsetEnableWireframe = ctx->Polygon.OffsetLine;
......@@ -3879,7 +3879,7 @@ genX(upload_raster)(struct brw_context *brw)
struct gl_point_attrib *point = &ctx->Point;
brw_batch_emit(brw, GENX(3DSTATE_RASTER), raster) {
if (polygon->_FrontBit == render_to_fbo)
if (brw->polygon_front_bit == render_to_fbo)
raster.FrontWinding = CounterClockwise;
if (polygon->CullFlag) {
......
......@@ -38,6 +38,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/image.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/state.h"
#include "swrast/s_context.h"
#include "swrast/s_fog.h"
......
......@@ -37,6 +37,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/enums.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/state.h"
#include "math/m_xform.h"
......
......@@ -803,7 +803,6 @@ struct gl_polygon_attrib
GLenum FrontFace; /**< Either GL_CW or GL_CCW */
GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */
GLboolean CullFlag; /**< Culling on/off flag */
GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */
GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */
......
......@@ -318,7 +318,6 @@ void _mesa_init_polygon( struct gl_context * ctx )
ctx->Polygon.CullFlag = GL_FALSE;
ctx->Polygon.CullFaceMode = GL_BACK;
ctx->Polygon.FrontFace = GL_CCW;
ctx->Polygon._FrontBit = 0;
ctx->Polygon.FrontMode = GL_FILL;
ctx->Polygon.BackMode = GL_FILL;
ctx->Polygon.SmoothFlag = GL_FALSE;
......
......@@ -274,21 +274,6 @@ update_program_constants(struct gl_context *ctx)
}
/**
* Update the ctx->Polygon._FrontBit flag.
*/
static void
update_frontbit(struct gl_context *ctx)
{
if (ctx->Transform.ClipOrigin == GL_LOWER_LEFT)
ctx->Polygon._FrontBit = (ctx->Polygon.FrontFace == GL_CW);
else
ctx->Polygon._FrontBit = (ctx->Polygon.FrontFace == GL_CCW);
}
/**
* Compute derived GL state.
* If __struct gl_contextRec::NewState is non-zero then this function \b must
......@@ -348,9 +333,6 @@ _mesa_update_state_locked( struct gl_context *ctx )
if (new_state & (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE | _NEW_PROGRAM))
_mesa_update_texture_state(ctx);
if (new_state & _NEW_POLYGON)
update_frontbit( ctx );
if (new_state & _NEW_BUFFERS)
_mesa_update_framebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer);
......
......@@ -83,4 +83,14 @@ _mesa_vertex_program_two_side_enabled(const struct gl_context *ctx)
return ctx->Light.Enabled && ctx->Light.Model.TwoSide;
}
/** Return 0=GL_CCW or 1=GL_CW */
static inline bool
_mesa_polygon_get_front_bit(const struct gl_context *ctx)
{
if (ctx->Transform.ClipOrigin == GL_LOWER_LEFT)
return ctx->Polygon.FrontFace == GL_CW;
return ctx->Polygon.FrontFace == GL_CCW;
}
#endif
......@@ -30,6 +30,7 @@
#include "main/macros.h"
#include "main/mtypes.h"
#include "main/stencil.h"
#include "main/state.h"
#include "tnl/t_context.h"
......
......@@ -58,7 +58,7 @@ static void TAG(triangle)(struct gl_context *ctx, GLuint e0, GLuint e1, GLuint e
if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT))
{
facing = (cc < 0.0F) ^ ctx->Polygon._FrontBit;
facing = (cc < 0.0F) ^ _mesa_polygon_get_front_bit(ctx);
if (IND & SS_UNFILLED_BIT)
mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode;
......
......@@ -137,7 +137,7 @@ static void TAG(triangle)( struct gl_context *ctx, GLuint e0, GLuint e1, GLuint
if (DO_TWOSIDE || DO_UNFILLED || DO_TWOSTENCIL)
{
facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
facing = AREA_IS_CCW( cc ) ^ _mesa_polygon_get_front_bit(ctx);
if (DO_UNFILLED) {
if (facing) {
......@@ -362,7 +362,7 @@ static void TAG(quadr)( struct gl_context *ctx,
if (DO_TWOSIDE || DO_UNFILLED || DO_TWOSTENCIL)
{
facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
facing = AREA_IS_CCW( cc ) ^ _mesa_polygon_get_front_bit(ctx);
if (DO_UNFILLED) {
if (facing) {
......
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