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 "nv10_3d.xml.h"
30 #include "nv10_driver.h"
31 
32 #define NUM_VERTEX_ATTRS 8
33 
34 static void
35 nv10_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 nv10_vertex_attrs[VERT_ATTRIB_MAX] = {
40 	[VERT_ATTRIB_POS] = {
41 		.vbo_index = 0,
42 		.imm_method = NV10_3D_VERTEX_POS_4F_X,
43 		.imm_fields = 4,
44 	},
45 	[VERT_ATTRIB_COLOR0] = {
46 		.vbo_index = 1,
47 		.imm_method = NV10_3D_VERTEX_COL_4F_R,
48 		.imm_fields = 4,
49 	},
50 	[VERT_ATTRIB_COLOR1] = {
51 		.vbo_index = 2,
52 		.imm_method = NV10_3D_VERTEX_COL2_3F_R,
53 		.imm_fields = 3,
54 	},
55 	[VERT_ATTRIB_TEX0] = {
56 		.vbo_index = 3,
57 		.imm_method = NV10_3D_VERTEX_TX0_4F_S,
58 		.imm_fields = 4,
59 	},
60 	[VERT_ATTRIB_TEX1] = {
61 		.vbo_index = 4,
62 		.imm_method = NV10_3D_VERTEX_TX1_4F_S,
63 		.imm_fields = 4,
64 	},
65 	[VERT_ATTRIB_NORMAL] = {
66 		.vbo_index = 5,
67 		.imm_method = NV10_3D_VERTEX_NOR_3F_X,
68 		.imm_fields = 3,
69 	},
70 	[VERT_ATTRIB_FOG] = {
71 		.vbo_index = 7,
72 		.imm_method = NV10_3D_VERTEX_FOG_1F,
73 		.imm_fields = 1,
74 	},
75 	[VERT_ATTRIB_GENERIC0] = {
76 		.emit = nv10_emit_material,
77 	},
78 	[VERT_ATTRIB_GENERIC2] = {
79 		.emit = nv10_emit_material,
80 	},
81 	[VERT_ATTRIB_GENERIC4] = {
82 		.emit = nv10_emit_material,
83 	},
84 	[VERT_ATTRIB_GENERIC6] = {
85 		.emit = nv10_emit_material,
86 	},
87 	[VERT_ATTRIB_GENERIC8] = {
88 		.emit = nv10_emit_material,
89 	},
90 };
91 
92 static int
93 get_hw_format(int type)
94 {
95 	switch (type) {
96 	case GL_FLOAT:
97 		return NV10_3D_VTXBUF_FMT_TYPE_V32_FLOAT;
98 	case GL_SHORT:
99 	case GL_UNSIGNED_SHORT:
100 		return NV10_3D_VTXBUF_FMT_TYPE_V16_SNORM;
101 	case GL_UNSIGNED_BYTE:
102 		return NV10_3D_VTXBUF_FMT_TYPE_U8_UNORM;
103 	default:
104 		assert(0);
105 	}
106 }
107 
108 static void
109 nv10_render_set_format(struct gl_context *ctx)
110 {
111 	struct nouveau_render_state *render = to_render_state(ctx);
112 	struct nouveau_pushbuf *push = context_push(ctx);
113 	int i, attr, hw_format;
114 
115 	FOR_EACH_ATTR(render, i, attr) {
116 		if (attr >= 0) {
117 			struct nouveau_array *a = &render->attrs[attr];
118 
119 			hw_format = a->stride << 8 |
120 				a->fields << 4 |
121 				get_hw_format(a->type);
122 
123 			if (attr == VERT_ATTRIB_POS && a->fields == 4)
124 				hw_format |= NV10_3D_VTXBUF_FMT_HOMOGENEOUS;
125 		} else {
126 			/* Unused attribute. */
127 			hw_format = NV10_3D_VTXBUF_FMT_TYPE_V32_FLOAT;
128 		}
129 
130 		BEGIN_NV04(push, NV10_3D(VTXBUF_FMT(i)), 1);
131 		PUSH_DATA (push, hw_format);
132 	}
133 }
134 
135 static void
136 nv10_render_bind_vertices(struct gl_context *ctx)
137 {
138 	struct nouveau_render_state *render = to_render_state(ctx);
139 	struct nouveau_pushbuf *push = context_push(ctx);
140 	int i, attr;
141 
142 	FOR_EACH_BOUND_ATTR(render, i, attr) {
143 		struct nouveau_array *a = &render->attrs[attr];
144 
145 		BEGIN_NV04(push, NV10_3D(VTXBUF_OFFSET(i)), 1);
146 		PUSH_MTHDl(push, NV10_3D(VTXBUF_OFFSET(i)), BUFCTX_VTX,
147 				 a->bo, a->offset, NOUVEAU_BO_GART |
148 				 NOUVEAU_BO_RD);
149 	}
150 }
151 
152 static void
153 nv10_render_release_vertices(struct gl_context *ctx)
154 {
155 	PUSH_RESET(context_push(ctx), BUFCTX_VTX);
156 }
157 
158 /* Vertex array rendering defs. */
159 #define RENDER_LOCALS(ctx)
160 
161 #define BATCH_VALIDATE()						\
162 	BEGIN_NV04(push, NV10_3D(VTXBUF_VALIDATE), 1);	\
163 	PUSH_DATA (push, 0)
164 
165 #define BATCH_BEGIN(prim)						\
166 	BEGIN_NV04(push, NV10_3D(VTXBUF_BEGIN_END), 1);	\
167 	PUSH_DATA (push, prim)
168 #define BATCH_END()							\
169 	BEGIN_NV04(push, NV10_3D(VTXBUF_BEGIN_END), 1);	\
170 	PUSH_DATA (push, 0)
171 
172 #define MAX_PACKET 0x400
173 
174 #define MAX_OUT_L 0x100
175 #define BATCH_PACKET_L(n)						\
176 	BEGIN_NI04(push, NV10_3D(VTXBUF_BATCH), n)
177 #define BATCH_OUT_L(i, n)			\
178 	PUSH_DATA (push, ((n) - 1) << 24 | (i))
179 
180 #define MAX_OUT_I16 0x2
181 #define BATCH_PACKET_I16(n)						\
182 	BEGIN_NI04(push, NV10_3D(VTXBUF_ELEMENT_U16), n)
183 #define BATCH_OUT_I16(i0, i1)			\
184 	PUSH_DATA (push, (i1) << 16 | (i0))
185 
186 #define MAX_OUT_I32 0x1
187 #define BATCH_PACKET_I32(n)						\
188 	BEGIN_NI04(push, NV10_3D(VTXBUF_ELEMENT_U32), n)
189 #define BATCH_OUT_I32(i)			\
190 	PUSH_DATA (push, i)
191 
192 #define IMM_PACKET(m, n)			\
193 	BEGIN_NV04(push, SUBC_3D(m), n)
194 #define IMM_OUT(x)				\
195 	PUSH_DATAf(push, x)
196 
197 #define TAG(x) nv10_##x
198 #include "nouveau_render_t.c"
199 #include "nouveau_vbo_t.c"
200 #include "nouveau_swtnl_t.c"
201