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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 "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