From 60179434d15989b81e2d4757f34033009184a678 Mon Sep 17 00:00:00 2001 From: Zou Nan hai Date: Mon, 30 Jul 2007 10:18:11 +0800 Subject: [PATCH] ARB sprite point support on i965 --- src/mesa/drivers/dri/i965/brw_sf.c | 15 ++++-- src/mesa/drivers/dri/i965/brw_sf.h | 9 +++- src/mesa/drivers/dri/i965/brw_sf_emit.c | 80 +++++++++++++++++++++++++++++++ src/mesa/drivers/dri/i965/intel_context.c | 5 ++ 4 files changed, 105 insertions(+), 4 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_sf.c b/src/mesa/drivers/dri/i965/brw_sf.c index d517539..73232b3 100644 --- a/src/mesa/drivers/dri/i965/brw_sf.c +++ b/src/mesa/drivers/dri/i965/brw_sf.c @@ -74,6 +74,11 @@ static void compile_sf_prog( struct brw_context *brw, if (c.key.attrs & (1<= VERT_RESULT_TEX0 && i <= VERT_RESULT_TEX7) { + c.point_attrs[i].CoordReplace = + brw->attribs.Point->CoordReplace[i - VERT_RESULT_TEX0]; + } else + c.point_attrs[i].CoordReplace = GL_FALSE; idx++; } @@ -90,7 +95,10 @@ static void compile_sf_prog( struct brw_context *brw, break; case SF_POINTS: c.nr_verts = 1; - brw_emit_point_setup( &c ); + if (key->do_point_sprite) + brw_emit_point_sprite_setup( &c ); + else + brw_emit_point_setup( &c ); break; case SF_UNFILLED_TRIS: c.nr_verts = 3; @@ -162,7 +170,8 @@ static void upload_sf_prog( struct brw_context *brw ) break; } - + key.do_point_sprite = brw->attribs.Point->PointSprite; + key.SpriteOrigin = brw->attribs.Point->SpriteOrigin; /* _NEW_LIGHT */ key.do_flat_shading = (brw->attribs.Light->ShadeModel == GL_FLAT); key.do_twoside_color = (brw->attribs.Light->Enabled && brw->attribs.Light->Model.TwoSide); @@ -179,7 +188,7 @@ static void upload_sf_prog( struct brw_context *brw ) const struct brw_tracked_state brw_sf_prog = { .dirty = { - .mesa = (_NEW_LIGHT|_NEW_POLYGON), + .mesa = (_NEW_LIGHT|_NEW_POLYGON|_NEW_POINT), .brw = (BRW_NEW_REDUCED_PRIMITIVE), .cache = CACHE_NEW_VS_PROG }, diff --git a/src/mesa/drivers/dri/i965/brw_sf.h b/src/mesa/drivers/dri/i965/brw_sf.h index fb72b84..e374e37 100644 --- a/src/mesa/drivers/dri/i965/brw_sf.h +++ b/src/mesa/drivers/dri/i965/brw_sf.h @@ -50,9 +50,14 @@ struct brw_sf_prog_key { GLuint do_flat_shading:1; GLuint attrs:16; GLuint frontface_ccw:1; - GLuint pad:11; + GLuint do_point_sprite:1; + GLuint pad:10; + GLenum SpriteOrigin; }; +struct brw_sf_point_tex { + GLboolean CoordReplace; +}; struct brw_sf_compile { struct brw_compile func; @@ -94,12 +99,14 @@ struct brw_sf_compile { GLubyte attr_to_idx[VERT_RESULT_MAX]; GLubyte idx_to_attr[VERT_RESULT_MAX]; + struct brw_sf_point_tex point_attrs[VERT_RESULT_MAX]; }; void brw_emit_tri_setup( struct brw_sf_compile *c ); void brw_emit_line_setup( struct brw_sf_compile *c ); void brw_emit_point_setup( struct brw_sf_compile *c ); +void brw_emit_point_sprite_setup( struct brw_sf_compile *c ); void brw_emit_anyprim_setup( struct brw_sf_compile *c ); #endif diff --git a/src/mesa/drivers/dri/i965/brw_sf_emit.c b/src/mesa/drivers/dri/i965/brw_sf_emit.c index cbaf018..7ecf9bb 100644 --- a/src/mesa/drivers/dri/i965/brw_sf_emit.c +++ b/src/mesa/drivers/dri/i965/brw_sf_emit.c @@ -497,6 +497,86 @@ void brw_emit_line_setup( struct brw_sf_compile *c ) } } +void brw_emit_point_sprite_setup( struct brw_sf_compile *c ) +{ + struct brw_compile *p = &c->func; + GLuint i; + + c->nr_verts = 1; + alloc_regs(c); + copy_z_inv_w(c); + for (i = 0; i < c->nr_setup_regs; i++) + { + struct brw_sf_point_tex *tex = &c->point_attrs[c->idx_to_attr[2*i]]; + struct brw_reg a0 = offset(c->vert[0], i); + GLushort pc, pc_persp, pc_linear; + GLboolean last = calculate_masks(c, i, &pc, &pc_persp, &pc_linear); + + if (pc_persp) + { + if (!tex->CoordReplace) { + brw_set_predicate_control_flag_value(p, pc_persp); + brw_MUL(p, a0, a0, c->inv_w[0]); + } + } + + if (tex->CoordReplace) { + /* Caculate 1.0/PointWidth */ + brw_math(&c->func, + c->tmp, + BRW_MATH_FUNCTION_INV, + BRW_MATH_SATURATE_NONE, + 0, + c->dx0, + BRW_MATH_DATA_SCALAR, + BRW_MATH_PRECISION_FULL); + + if (c->key.SpriteOrigin == GL_UPPER_LEFT) { + brw_MUL(p, c->m1Cx, c->tmp, c->inv_w[0]); + brw_MOV(p, vec1(suboffset(c->m1Cx, 1)), brw_imm_f(0.0)); + brw_MUL(p, c->m2Cy, c->tmp, negate(c->inv_w[0])); + brw_MOV(p, vec1(suboffset(c->m2Cy, 0)), brw_imm_f(0.0)); + } else { + brw_MUL(p, c->m1Cx, c->tmp, c->inv_w[0]); + brw_MOV(p, vec1(suboffset(c->m1Cx, 1)), brw_imm_f(0.0)); + brw_MUL(p, c->m2Cy, c->tmp, c->inv_w[0]); + brw_MOV(p, vec1(suboffset(c->m2Cy, 0)), brw_imm_f(0.0)); + } + } else { + brw_MOV(p, c->m1Cx, brw_imm_ud(0)); + brw_MOV(p, c->m2Cy, brw_imm_ud(0)); + } + + { + brw_set_predicate_control_flag_value(p, pc); + if (tex->CoordReplace) { + if (c->key.SpriteOrigin == GL_UPPER_LEFT) { + brw_MUL(p, c->m3C0, c->inv_w[0], brw_imm_f(1.0)); + brw_MOV(p, vec1(suboffset(c->m3C0, 0)), brw_imm_f(0.0)); + } + else + brw_MOV(p, c->m3C0, brw_imm_f(0.0)); + } else { + brw_MOV(p, c->m3C0, a0); /* constant value */ + } + + /* Copy m0..m3 to URB. + */ + brw_urb_WRITE(p, + brw_null_reg(), + 0, + brw_vec8_grf(0, 0), + 0, /* allocate */ + 1, /* used */ + 4, /* msg len */ + 0, /* response len */ + last, /* eot */ + last, /* writes complete */ + i*4, /* urb destination offset */ + BRW_URB_SWIZZLE_TRANSPOSE); + } + } +} /* Points setup - several simplifications as all attributes are * constant across the face of the point (point sprites excluded!) diff --git a/src/mesa/drivers/dri/i965/intel_context.c b/src/mesa/drivers/dri/i965/intel_context.c index 4f51fef..a8204ee 100644 --- a/src/mesa/drivers/dri/i965/intel_context.c +++ b/src/mesa/drivers/dri/i965/intel_context.c @@ -66,6 +66,7 @@ int INTEL_DEBUG = (0); #endif +#define need_GL_NV_point_sprite #define need_GL_ARB_multisample #define need_GL_ARB_point_parameters #define need_GL_ARB_texture_compression @@ -81,6 +82,7 @@ int INTEL_DEBUG = (0); #define need_GL_EXT_fog_coord #define need_GL_EXT_multi_draw_arrays #define need_GL_EXT_secondary_color +#define need_GL_EXT_point_parameters #include "extension_helper.h" #ifndef VERBOSE @@ -146,6 +148,7 @@ const struct dri_extension card_extensions[] = { "GL_ARB_multisample", GL_ARB_multisample_functions }, { "GL_ARB_multitexture", NULL }, { "GL_ARB_point_parameters", GL_ARB_point_parameters_functions }, + { "GL_NV_point_sprite", GL_NV_point_sprite_functions }, { "GL_ARB_texture_border_clamp", NULL }, { "GL_ARB_texture_compression", GL_ARB_texture_compression_functions }, { "GL_ARB_texture_cube_map", NULL }, @@ -158,6 +161,8 @@ const struct dri_extension card_extensions[] = { "GL_NV_texture_rectangle", NULL }, { "GL_EXT_texture_rectangle", NULL }, { "GL_ARB_texture_rectangle", NULL }, + { "GL_ARB_point_sprite", NULL}, + { "GL_ARB_point_parameters", NULL }, { "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions }, { "GL_ARB_vertex_program", GL_ARB_vertex_program_functions }, { "GL_ARB_window_pos", GL_ARB_window_pos_functions }, -- 2.7.4