1 /*
2  * Copyright (C) 2009-2010 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 "nv20_3d.xml.h"
30 #include "nv20_driver.h"
31 
32 #define NUM_VERTEX_ATTRS 16
33 
34 static void
35 nv20_emit_material(struct gl_context *ctx, struct nouveau_array *a,
36 		   const void *v);
37 
38 /* Vertex attribute format. */
39 static struct nouveau_attr_info nv20_vertex_attrs[VERT_ATTRIB_MAX] = {
40 	[VERT_ATTRIB_POS] = {
41 		.vbo_index = 0,
42 		.imm_method = NV20_3D_VERTEX_POS_4F_X,
43 		.imm_fields = 4,
44 	},
45 	[VERT_ATTRIB_NORMAL] = {
46 		.vbo_index = 2,
47 		.imm_method = NV20_3D_VERTEX_NOR_3F_X,
48 		.imm_fields = 3,
49 	},
50 	[VERT_ATTRIB_COLOR0] = {
51 		.vbo_index = 3,
52 		.imm_method = NV20_3D_VERTEX_COL_4F,
53 		.imm_fields = 4,
54 	},
55 	[VERT_ATTRIB_COLOR1] = {
56 		.vbo_index = 4,
57 		.imm_method = NV20_3D_VERTEX_COL2_3F,
58 		.imm_fields = 3,
59 	},
60 	[VERT_ATTRIB_FOG] = {
61 		.vbo_index = 5,
62 		.imm_method = NV20_3D_VERTEX_FOG_1F,
63 		.imm_fields = 1,
64 	},
65 	[VERT_ATTRIB_TEX0] = {
66 		.vbo_index = 9,
67 		.imm_method = NV20_3D_VERTEX_TX0_4F_S,
68 		.imm_fields = 4,
69 	},
70 	[VERT_ATTRIB_TEX1] = {
71 		.vbo_index = 10,
72 		.imm_method = NV20_3D_VERTEX_TX1_4F_S,
73 		.imm_fields = 4,
74 	},
75 	[VERT_ATTRIB_TEX2] = {
76 		.vbo_index = 11,
77 		.imm_method = NV20_3D_VERTEX_TX2_4F_S,
78 		.imm_fields = 4,
79 	},
80 	[VERT_ATTRIB_TEX3] = {
81 		.vbo_index = 12,
82 		.imm_method = NV20_3D_VERTEX_TX3_4F_S,
83 		.imm_fields = 4,
84 	},
85 	[VERT_ATTRIB_GENERIC0] = {
86 		.emit = nv20_emit_material,
87 	},
88 	[VERT_ATTRIB_GENERIC1] = {
89 		.emit = nv20_emit_material,
90 	},
91 	[VERT_ATTRIB_GENERIC2] = {
92 		.emit = nv20_emit_material,
93 	},
94 	[VERT_ATTRIB_GENERIC3] = {
95 		.emit = nv20_emit_material,
96 	},
97 	[VERT_ATTRIB_GENERIC4] = {
98 		.emit = nv20_emit_material,
99 	},
100 	[VERT_ATTRIB_GENERIC5] = {
101 		.emit = nv20_emit_material,
102 	},
103 	[VERT_ATTRIB_GENERIC6] = {
104 		.emit = nv20_emit_material,
105 	},
106 	[VERT_ATTRIB_GENERIC7] = {
107 		.emit = nv20_emit_material,
108 	},
109 	[VERT_ATTRIB_GENERIC8] = {
110 		.emit = nv20_emit_material,
111 	},
112 	[VERT_ATTRIB_GENERIC9] = {
113 		.emit = nv20_emit_material,
114 	},
115 };
116 
117 static int
118 get_hw_format(int type)
119 {
120 	switch (type) {
121 	case GL_FLOAT:
122 		return NV20_3D_VTXBUF_FMT_TYPE_FLOAT;
123 	case GL_UNSIGNED_SHORT:
124 		return NV20_3D_VTXBUF_FMT_TYPE_USHORT;
125 	case GL_UNSIGNED_BYTE:
126 		return NV20_3D_VTXBUF_FMT_TYPE_UBYTE;
127 	default:
128 		assert(0);
129 	}
130 }
131 
132 static void
133 nv20_render_set_format(struct gl_context *ctx)
134 {
135 	struct nouveau_render_state *render = to_render_state(ctx);
136 	struct nouveau_pushbuf *push = context_push(ctx);
137 	int i, attr, hw_format;
138 
139 	FOR_EACH_ATTR(render, i, attr) {
140 		if (attr >= 0) {
141 			struct nouveau_array *a = &render->attrs[attr];
142 
143 			hw_format = a->stride << 8 |
144 				a->fields << 4 |
145 				get_hw_format(a->type);
146 
147 		} else {
148 			/* Unused attribute. */
149 			hw_format = NV20_3D_VTXBUF_FMT_TYPE_FLOAT;
150 		}
151 
152 		BEGIN_NV04(push, NV20_3D(VTXBUF_FMT(i)), 1);
153 		PUSH_DATA (push, hw_format);
154 	}
155 }
156 
157 static void
158 nv20_render_bind_vertices(struct gl_context *ctx)
159 {
160 	struct nouveau_render_state *render = to_render_state(ctx);
161 	struct nouveau_pushbuf *push = context_push(ctx);
162 	int i, attr;
163 
164 	FOR_EACH_BOUND_ATTR(render, i, attr) {
165 		struct nouveau_array *a = &render->attrs[attr];
166 
167 		BEGIN_NV04(push, NV20_3D(VTXBUF_OFFSET(i)), 1);
168 		PUSH_MTHD (push, NV20_3D(VTXBUF_OFFSET(i)), BUFCTX_VTX,
169 				 a->bo, a->offset, NOUVEAU_BO_LOW |
170 				 NOUVEAU_BO_OR | NOUVEAU_BO_GART |
171 				 NOUVEAU_BO_RD, 0,
172 				 NV20_3D_VTXBUF_OFFSET_DMA1);
173 	}
174 }
175 
176 static void
177 nv20_render_release_vertices(struct gl_context *ctx)
178 {
179 	PUSH_RESET(context_push(ctx), BUFCTX_VTX);
180 }
181 
182 /* Vertex array rendering defs. */
183 #define RENDER_LOCALS(ctx)
184 
185 #define BATCH_VALIDATE()						\
186 	BEGIN_NV04(push, NV20_3D(VTXBUF_VALIDATE), 1);	\
187 	PUSH_DATA (push, 0)
188 
189 #define BATCH_BEGIN(prim)					\
190 	BEGIN_NV04(push, NV20_3D(VERTEX_BEGIN_END), 1);	\
191 	PUSH_DATA (push, prim)
192 #define BATCH_END()						\
193 	BEGIN_NV04(push, NV20_3D(VERTEX_BEGIN_END), 1);	\
194 	PUSH_DATA (push, 0)
195 
196 #define MAX_PACKET 0x400
197 
198 #define MAX_OUT_L 0x100
199 #define BATCH_PACKET_L(n)						\
200 	BEGIN_NI04(push, NV20_3D(VTXBUF_BATCH), n)
201 #define BATCH_OUT_L(i, n)			\
202 	PUSH_DATA (push, ((n) - 1) << 24 | (i))
203 
204 #define MAX_OUT_I16 0x2
205 #define BATCH_PACKET_I16(n)					\
206 	BEGIN_NI04(push, NV20_3D(VTXBUF_ELEMENT_U16), n)
207 #define BATCH_OUT_I16(i0, i1)			\
208 	PUSH_DATA (push, (i1) << 16 | (i0))
209 
210 #define MAX_OUT_I32 0x1
211 #define BATCH_PACKET_I32(n)					\
212 	BEGIN_NI04(push, NV20_3D(VTXBUF_ELEMENT_U32), n)
213 #define BATCH_OUT_I32(i)			\
214 	PUSH_DATA (push, i)
215 
216 #define IMM_PACKET(m, n)			\
217 	BEGIN_NV04(push, SUBC_3D(m), n)
218 #define IMM_OUT(x)				\
219 	PUSH_DATAf(push, x)
220 
221 #define TAG(x) nv20_##x
222 #include "nouveau_render_t.c"
223 #include "nouveau_vbo_t.c"
224 #include "nouveau_swtnl_t.c"
225