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      1 /*
      2  * Copyright (C) 2009 Francisco Jerez.
      3  * All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the
     14  * next paragraph) shall be included in all copies or substantial
     15  * portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24  *
     25  */
     26 
     27 #include "nouveau_driver.h"
     28 #include "nouveau_context.h"
     29 #include "nouveau_gldefs.h"
     30 #include "nouveau_util.h"
     31 #include "nv_object.xml.h"
     32 #include "nv10_3d.xml.h"
     33 #include "nv10_driver.h"
     34 
     35 #include "main/stencil.h"
     36 
     37 void
     38 nv10_emit_alpha_func(struct gl_context *ctx, int emit)
     39 {
     40 	struct nouveau_pushbuf *push = context_push(ctx);
     41 
     42 	BEGIN_NV04(push, NV10_3D(ALPHA_FUNC_ENABLE), 1);
     43 	PUSH_DATAb(push, ctx->Color.AlphaEnabled);
     44 
     45 	BEGIN_NV04(push, NV10_3D(ALPHA_FUNC_FUNC), 2);
     46 	PUSH_DATA (push, nvgl_comparison_op(ctx->Color.AlphaFunc));
     47 	PUSH_DATA (push, FLOAT_TO_UBYTE(ctx->Color.AlphaRef));
     48 }
     49 
     50 void
     51 nv10_emit_blend_color(struct gl_context *ctx, int emit)
     52 {
     53 	struct nouveau_pushbuf *push = context_push(ctx);
     54 
     55 	BEGIN_NV04(push, NV10_3D(BLEND_COLOR), 1);
     56 	PUSH_DATA (push, FLOAT_TO_UBYTE(ctx->Color.BlendColor[3]) << 24 |
     57 		 FLOAT_TO_UBYTE(ctx->Color.BlendColor[0]) << 16 |
     58 		 FLOAT_TO_UBYTE(ctx->Color.BlendColor[1]) << 8 |
     59 		 FLOAT_TO_UBYTE(ctx->Color.BlendColor[2]) << 0);
     60 }
     61 
     62 void
     63 nv10_emit_blend_equation(struct gl_context *ctx, int emit)
     64 {
     65 	struct nouveau_pushbuf *push = context_push(ctx);
     66 
     67 	BEGIN_NV04(push, NV10_3D(BLEND_FUNC_ENABLE), 1);
     68 	PUSH_DATAb(push, ctx->Color.BlendEnabled);
     69 
     70 	BEGIN_NV04(push, NV10_3D(BLEND_EQUATION), 1);
     71 	PUSH_DATA (push, nvgl_blend_eqn(ctx->Color.Blend[0].EquationRGB));
     72 }
     73 
     74 void
     75 nv10_emit_blend_func(struct gl_context *ctx, int emit)
     76 {
     77 	struct nouveau_pushbuf *push = context_push(ctx);
     78 
     79 	BEGIN_NV04(push, NV10_3D(BLEND_FUNC_SRC), 2);
     80 	PUSH_DATA (push, nvgl_blend_func(ctx->Color.Blend[0].SrcRGB));
     81 	PUSH_DATA (push, nvgl_blend_func(ctx->Color.Blend[0].DstRGB));
     82 }
     83 
     84 void
     85 nv10_emit_color_mask(struct gl_context *ctx, int emit)
     86 {
     87 	struct nouveau_pushbuf *push = context_push(ctx);
     88 
     89 	BEGIN_NV04(push, NV10_3D(COLOR_MASK), 1);
     90 	PUSH_DATA (push, ((ctx->Color.ColorMask[0][3] ? 1 << 24 : 0) |
     91 			(ctx->Color.ColorMask[0][0] ? 1 << 16 : 0) |
     92 			(ctx->Color.ColorMask[0][1] ? 1 << 8 : 0) |
     93 			(ctx->Color.ColorMask[0][2] ? 1 << 0 : 0)));
     94 }
     95 
     96 void
     97 nv10_emit_depth(struct gl_context *ctx, int emit)
     98 {
     99 	struct nouveau_pushbuf *push = context_push(ctx);
    100 	struct gl_framebuffer *fb = ctx->DrawBuffer;
    101 
    102 	BEGIN_NV04(push, NV10_3D(DEPTH_TEST_ENABLE), 1);
    103 	PUSH_DATAb(push, ctx->Depth.Test && fb->Visual.depthBits > 0);
    104 	BEGIN_NV04(push, NV10_3D(DEPTH_WRITE_ENABLE), 1);
    105 	PUSH_DATAb(push, ctx->Depth.Mask && fb->Visual.depthBits > 0);
    106 	BEGIN_NV04(push, NV10_3D(DEPTH_FUNC), 1);
    107 	PUSH_DATA (push, nvgl_comparison_op(ctx->Depth.Func));
    108 }
    109 
    110 void
    111 nv10_emit_dither(struct gl_context *ctx, int emit)
    112 {
    113 	struct nouveau_pushbuf *push = context_push(ctx);
    114 
    115 	BEGIN_NV04(push, NV10_3D(DITHER_ENABLE), 1);
    116 	PUSH_DATAb(push, ctx->Color.DitherFlag);
    117 }
    118 
    119 void
    120 nv10_emit_logic_opcode(struct gl_context *ctx, int emit)
    121 {
    122 	struct nouveau_pushbuf *push = context_push(ctx);
    123 
    124 	assert(!ctx->Color.ColorLogicOpEnabled
    125 	       || context_eng3d(ctx)->oclass >= NV15_3D_CLASS);
    126 
    127 	BEGIN_NV04(push, NV11_3D(COLOR_LOGIC_OP_ENABLE), 2);
    128 	PUSH_DATAb(push, ctx->Color.ColorLogicOpEnabled);
    129 	PUSH_DATA (push, nvgl_logicop_func(ctx->Color.LogicOp));
    130 }
    131 
    132 void
    133 nv10_emit_shade_model(struct gl_context *ctx, int emit)
    134 {
    135 	struct nouveau_pushbuf *push = context_push(ctx);
    136 
    137 	BEGIN_NV04(push, NV10_3D(SHADE_MODEL), 1);
    138 	PUSH_DATA (push, ctx->Light.ShadeModel == GL_SMOOTH ?
    139 		 NV10_3D_SHADE_MODEL_SMOOTH : NV10_3D_SHADE_MODEL_FLAT);
    140 }
    141 
    142 void
    143 nv10_emit_stencil_func(struct gl_context *ctx, int emit)
    144 {
    145 	struct nouveau_pushbuf *push = context_push(ctx);
    146 
    147 	BEGIN_NV04(push, NV10_3D(STENCIL_ENABLE), 1);
    148 	PUSH_DATAb(push, ctx->Stencil._Enabled);
    149 
    150 	BEGIN_NV04(push, NV10_3D(STENCIL_FUNC_FUNC), 3);
    151 	PUSH_DATA (push, nvgl_comparison_op(ctx->Stencil.Function[0]));
    152 	PUSH_DATA (push, _mesa_get_stencil_ref(ctx, 0));
    153 	PUSH_DATA (push, ctx->Stencil.ValueMask[0]);
    154 }
    155 
    156 void
    157 nv10_emit_stencil_mask(struct gl_context *ctx, int emit)
    158 {
    159 	struct nouveau_pushbuf *push = context_push(ctx);
    160 
    161 	BEGIN_NV04(push, NV10_3D(STENCIL_MASK), 1);
    162 	PUSH_DATA (push, ctx->Stencil.WriteMask[0]);
    163 }
    164 
    165 void
    166 nv10_emit_stencil_op(struct gl_context *ctx, int emit)
    167 {
    168 	struct nouveau_pushbuf *push = context_push(ctx);
    169 
    170 	BEGIN_NV04(push, NV10_3D(STENCIL_OP_FAIL), 3);
    171 	PUSH_DATA (push, nvgl_stencil_op(ctx->Stencil.FailFunc[0]));
    172 	PUSH_DATA (push, nvgl_stencil_op(ctx->Stencil.ZFailFunc[0]));
    173 	PUSH_DATA (push, nvgl_stencil_op(ctx->Stencil.ZPassFunc[0]));
    174 }
    175