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      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