diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_fp.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_fp.c | 139 |
1 files changed, 63 insertions, 76 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c index d3e926c328..ea3f3fc678 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_fp.c +++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c @@ -111,6 +111,12 @@ static struct prog_src_register src_swizzle1( struct prog_src_register reg, int return src_swizzle(reg, x, x, x, x); } +static struct prog_src_register src_swizzle4( struct prog_src_register reg, uint swizzle ) +{ + reg.Swizzle = swizzle; + return reg; +} + /*********************************************************************** * Dest regs @@ -122,10 +128,11 @@ static struct prog_dst_register dst_reg(GLuint file, GLuint idx) reg.File = file; reg.Index = idx; reg.WriteMask = WRITEMASK_XYZW; + reg.RelAddr = 0; reg.CondMask = 0; reg.CondSwizzle = 0; - reg.pad = 0; reg.CondSrc = 0; + reg.pad = 0; return reg; } @@ -426,10 +433,6 @@ static struct prog_src_register search_or_add_param5(struct brw_wm_compile *c, idx = _mesa_add_state_reference( paramList, tokens ); - /* Recalculate state dependency: - */ - c->fp->param_state = paramList->StateFlags; - return src_reg(PROGRAM_STATE_VAR, idx); } @@ -557,12 +560,19 @@ static void precalc_lit( struct brw_wm_compile *c, } } + +/** + * Some TEX instructions require extra code, cube map coordinate + * normalization, or coordinate scaling for RECT textures, etc. + * This function emits those extra instructions and the TEX + * instruction itself. + */ static void precalc_tex( struct brw_wm_compile *c, const struct prog_instruction *inst ) { struct prog_src_register coord; struct prog_dst_register tmpcoord; - GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit]; + const GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit]; if (inst->TexSrcTarget == TEXTURE_CUBE_INDEX) { struct prog_instruction *out; @@ -572,9 +582,11 @@ static void precalc_tex( struct brw_wm_compile *c, struct prog_src_register tmp1src = src_reg_from_dst(tmp1); struct prog_src_register src0 = inst->SrcReg[0]; + /* find longest component of coord vector and normalize it */ tmpcoord = get_temp(c); coord = src_reg_from_dst(tmpcoord); + /* tmpcoord = src0 (i.e.: coord = src0) */ out = emit_op(c, OPCODE_MOV, tmpcoord, 0, 0, 0, @@ -584,6 +596,7 @@ static void precalc_tex( struct brw_wm_compile *c, out->SrcReg[0].NegateBase = 0; out->SrcReg[0].Abs = 1; + /* tmp0 = MAX(coord.X, coord.Y) */ emit_op(c, OPCODE_MAX, tmp0, 0, 0, 0, @@ -591,6 +604,7 @@ static void precalc_tex( struct brw_wm_compile *c, src_swizzle1(coord, Y), src_undef()); + /* tmp1 = MAX(tmp0, coord.Z) */ emit_op(c, OPCODE_MAX, tmp1, 0, 0, 0, @@ -598,6 +612,7 @@ static void precalc_tex( struct brw_wm_compile *c, src_swizzle1(coord, Z), src_undef()); + /* tmp0 = 1 / tmp1 */ emit_op(c, OPCODE_RCP, tmp0, 0, 0, 0, @@ -605,6 +620,7 @@ static void precalc_tex( struct brw_wm_compile *c, src_undef(), src_undef()); + /* tmpCoord = src0 * tmp0 */ emit_op(c, OPCODE_MUL, tmpcoord, 0, 0, 0, @@ -614,7 +630,8 @@ static void precalc_tex( struct brw_wm_compile *c, release_temp(c, tmp0); release_temp(c, tmp1); - } else if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) { + } + else if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) { struct prog_src_register scale = search_or_add_param5( c, STATE_INTERNAL, @@ -645,19 +662,9 @@ static void precalc_tex( struct brw_wm_compile *c, * conversion requires allocating a temporary variable which we * don't have the facility to do that late in the compilation. */ - if (!(c->key.yuvtex_mask & (1<<unit))) { - emit_op(c, - OPCODE_TEX, - inst->DstReg, - inst->SaturateMode, - unit, - inst->TexSrcTarget, - coord, - src_undef(), - src_undef()); - } - else { - GLboolean swap_uv = c->key.yuvtex_swap_mask & (1<<unit); + if (c->key.yuvtex_mask & (1 << unit)) { + /* convert ycbcr to RGBA */ + GLboolean swap_uv = c->key.yuvtex_swap_mask & (1<<unit); /* CONST C0 = { -.5, -.0625, -.5, 1.164 } @@ -737,6 +744,31 @@ static void precalc_tex( struct brw_wm_compile *c, release_temp(c, tmp); } + else { + /* ordinary RGBA tex instruction */ + emit_op(c, + OPCODE_TEX, + inst->DstReg, + inst->SaturateMode, + unit, + inst->TexSrcTarget, + coord, + src_undef(), + src_undef()); + } + + /* For GL_EXT_texture_swizzle: */ + if (c->key.tex_swizzles[unit] != SWIZZLE_NOOP) { + /* swizzle the result of the TEX instruction */ + struct prog_src_register tmpsrc = src_reg_from_dst(inst->DstReg); + emit_op(c, OPCODE_SWZ, + inst->DstReg, + SATURATE_OFF, /* saturate already done above */ + 0, 0, /* tex unit, target N/A */ + src_swizzle4(tmpsrc, c->key.tex_swizzles[unit]), + src_undef(), + src_undef()); + } if ((inst->TexSrcTarget == TEXTURE_RECT_INDEX) || (inst->TexSrcTarget == TEXTURE_CUBE_INDEX)) @@ -814,62 +846,11 @@ static void precalc_txp( struct brw_wm_compile *c, - - -/*********************************************************************** - * Add instructions to perform fog blending - */ - -static void fog_blend( struct brw_wm_compile *c, - struct prog_src_register fog_factor ) -{ - struct prog_dst_register outcolor = dst_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR); - struct prog_src_register fogcolor = search_or_add_param5( c, STATE_FOG_COLOR, 0,0,0,0 ); - - /* color.xyz = LRP fog_factor.xxxx, output_color, fog_color */ - - emit_op(c, - OPCODE_LRP, - dst_mask(outcolor, WRITEMASK_XYZ), - 0, 0, 0, - fog_factor, - src_reg_from_dst(outcolor), - fogcolor); -} - - - -/* This one is simple - just take the interpolated fog coordinate and - * use it as the fog blend factor. - */ -static void fog_interpolated( struct brw_wm_compile *c ) -{ - struct prog_src_register fogc = src_reg(PROGRAM_INPUT, FRAG_ATTRIB_FOGC); - - if (!(c->fp_interp_emitted & (1<<FRAG_ATTRIB_FOGC))) - emit_interp(c, FRAG_ATTRIB_FOGC); - - fog_blend( c, src_swizzle1(fogc, GET_SWZ(fogc.Swizzle,X))); -} - -static void emit_fog( struct brw_wm_compile *c ) -{ - if (!c->fp->program.FogOption) - return; - - if (1) - fog_interpolated( c ); - else { - /* TODO: per-pixel fog */ - assert(0); - } -} - static void emit_fb_write( struct brw_wm_compile *c ) { - struct prog_src_register outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR); struct prog_src_register payload_r0_depth = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH); struct prog_src_register outdepth = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DEPR); + struct prog_src_register outcolor; GLuint i; struct prog_instruction *inst, *last_inst; @@ -893,7 +874,14 @@ static void emit_fb_write( struct brw_wm_compile *c ) } } last_inst->Sampler |= 1; //eot - }else { + } + else { + /* if gl_FragData[0] is written, use it, else use gl_FragColor */ + if (c->fp->program.Base.OutputsWritten & (1 << FRAG_RESULT_DATA0)) + outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_DATA0); + else + outcolor = src_reg(PROGRAM_OUTPUT, FRAG_RESULT_COLR); + inst = emit_op(c, WM_FB_WRITE, dst_mask(dst_undef(),0), 0, 0, 0, outcolor, payload_r0_depth, outdepth); inst->Sampler = 1|(0<<1); @@ -960,7 +948,7 @@ void brw_wm_pass_fp( struct brw_wm_compile *c ) GLuint insn; if (INTEL_DEBUG & DEBUG_WM) { - _mesa_printf("\n\n\npre-fp:\n"); + _mesa_printf("pre-fp:\n"); _mesa_print_program(&fp->program.Base); _mesa_printf("\n"); } @@ -1055,7 +1043,6 @@ void brw_wm_pass_fp( struct brw_wm_compile *c ) emit_ddy(c, inst); break; case OPCODE_END: - emit_fog(c); emit_fb_write(c); break; case OPCODE_PRINT: @@ -1068,7 +1055,7 @@ void brw_wm_pass_fp( struct brw_wm_compile *c ) } if (INTEL_DEBUG & DEBUG_WM) { - _mesa_printf("\n\n\npass_fp:\n"); + _mesa_printf("pass_fp:\n"); print_insns( c->prog_instructions, c->nr_fp_insns ); _mesa_printf("\n"); } |