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| 4358 | Serge | 1 | /* |
| 2 | * Copyright (C) 2009-2010 Francisco Jerez. |
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| 3 | * All Rights Reserved. |
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| 4 | * |
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| 5 | * Permission is hereby granted, free of charge, to any person obtaining |
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| 6 | * a copy of this software and associated documentation files (the |
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| 7 | * "Software"), to deal in the Software without restriction, including |
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| 8 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 9 | * distribute, sublicense, and/or sell copies of the Software, and to |
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| 10 | * permit persons to whom the Software is furnished to do so, subject to |
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| 11 | * the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice (including the |
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| 14 | * next paragraph) shall be included in all copies or substantial |
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| 15 | * portions of the Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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| 20 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
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| 21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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| 22 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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| 23 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 24 | * |
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| 25 | */ |
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| 26 | |||
| 27 | /* |
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| 28 | * Vertex submission helper definitions shared among the software and |
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| 29 | * hardware TnL paths. |
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| 30 | */ |
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| 31 | |||
| 32 | #include "nouveau_gldefs.h" |
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| 33 | |||
| 34 | #include "main/light.h" |
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| 35 | #include "vbo/vbo.h" |
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| 36 | #include "tnl/tnl.h" |
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| 37 | |||
| 38 | #define OUT_INDICES_L(r, i, d, n) \ |
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| 39 | BATCH_OUT_L(i + d, n); \ |
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| 40 | (void)r |
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| 41 | #define OUT_INDICES_I16(r, i, d, n) \ |
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| 42 | BATCH_OUT_I16(r->ib.extract_u(&r->ib, 0, i) + d, \ |
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| 43 | r->ib.extract_u(&r->ib, 0, i + 1) + d) |
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| 44 | #define OUT_INDICES_I32(r, i, d, n) \ |
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| 45 | BATCH_OUT_I32(r->ib.extract_u(&r->ib, 0, i) + d) |
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| 46 | |||
| 47 | /* |
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| 48 | * Emit |
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| 49 | * grouping them in packets of length MAX_PACKET. |
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| 50 | * |
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| 51 | * out: hardware index data type. |
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| 52 | * ctx: GL context. |
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| 53 | * start: element within the index buffer to begin with. |
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| 54 | * delta: integer correction that will be added to each index found in |
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| 55 | * the index buffer. |
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| 56 | */ |
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| 57 | #define EMIT_VBO(out, ctx, start, delta, n) do { \ |
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| 58 | struct nouveau_render_state *render = to_render_state(ctx); \ |
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| 59 | int npush = n; \ |
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| 60 | \ |
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| 61 | while (npush) { \ |
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| 62 | int npack = MIN2(npush, MAX_PACKET * MAX_OUT_##out); \ |
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| 63 | npush -= npack; \ |
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| 64 | \ |
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| 65 | BATCH_PACKET_##out((npack + MAX_OUT_##out - 1) \ |
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| 66 | / MAX_OUT_##out); \ |
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| 67 | while (npack) { \ |
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| 68 | int nout = MIN2(npack, MAX_OUT_##out); \ |
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| 69 | npack -= nout; \ |
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| 70 | \ |
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| 71 | OUT_INDICES_##out(render, start, delta, \ |
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| 72 | nout); \ |
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| 73 | start += nout; \ |
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| 74 | } \ |
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| 75 | } \ |
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| 76 | } while (0) |
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| 77 | |||
| 78 | /* |
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| 79 | * Emit the |
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| 80 | */ |
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| 81 | #define EMIT_IMM(ctx, a, n) do { \ |
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| 82 | struct nouveau_attr_info *info = \ |
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| 83 | &TAG(vertex_attrs)[(a)->attr]; \ |
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| 84 | int m; \ |
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| 85 | \ |
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| 86 | if (!info->emit) { \ |
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| 87 | IMM_PACKET(info->imm_method, info->imm_fields); \ |
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| 88 | \ |
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| 89 | for (m = 0; m < (a)->fields; m++) \ |
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| 90 | IMM_OUT((a)->extract_f(a, n, m)); \ |
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| 91 | \ |
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| 92 | for (m = (a)->fields; m < info->imm_fields; m++) \ |
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| 93 | IMM_OUT(((float []){0, 0, 0, 1})[m]); \ |
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| 94 | \ |
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| 95 | } else { \ |
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| 96 | info->emit(ctx, a, (a)->buf + n * (a)->stride); \ |
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| 97 | } \ |
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| 98 | } while (0) |
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| 99 | |||
| 100 | static void |
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| 101 | dispatch_l(struct gl_context *ctx, unsigned int start, int delta, |
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| 102 | unsigned int n) |
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| 103 | { |
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| 104 | struct nouveau_pushbuf *push = context_push(ctx); |
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| 105 | RENDER_LOCALS(ctx); |
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| 106 | |||
| 107 | EMIT_VBO(L, ctx, start, delta, n); |
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| 108 | } |
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| 109 | |||
| 110 | static void |
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| 111 | dispatch_i32(struct gl_context *ctx, unsigned int start, int delta, |
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| 112 | unsigned int n) |
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| 113 | { |
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| 114 | struct nouveau_pushbuf *push = context_push(ctx); |
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| 115 | RENDER_LOCALS(ctx); |
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| 116 | |||
| 117 | EMIT_VBO(I32, ctx, start, delta, n); |
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| 118 | } |
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| 119 | |||
| 120 | static void |
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| 121 | dispatch_i16(struct gl_context *ctx, unsigned int start, int delta, |
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| 122 | unsigned int n) |
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| 123 | { |
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| 124 | struct nouveau_pushbuf *push = context_push(ctx); |
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| 125 | RENDER_LOCALS(ctx); |
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| 126 | |||
| 127 | EMIT_VBO(I32, ctx, start, delta, n & 1); |
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| 128 | EMIT_VBO(I16, ctx, start, delta, n & ~1); |
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| 129 | } |
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| 130 | |||
| 131 | /* |
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| 132 | * Select an appropriate dispatch function for the given index buffer. |
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| 133 | */ |
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| 134 | static dispatch_t |
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| 135 | get_array_dispatch(struct nouveau_array *a) |
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| 136 | { |
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| 137 | if (!a->fields) |
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| 138 | return dispatch_l; |
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| 139 | else if (a->type == GL_UNSIGNED_INT) |
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| 140 | return dispatch_i32; |
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| 141 | else |
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| 142 | return dispatch_i16; |
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| 143 | } |
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| 144 | |||
| 145 | /* |
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| 146 | * Returns how many vertices you can draw using |
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| 147 | */ |
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| 148 | static inline unsigned |
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| 149 | get_max_vertices(struct gl_context *ctx, const struct _mesa_index_buffer *ib, |
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| 150 | int n) |
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| 151 | { |
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| 152 | struct nouveau_render_state *render = to_render_state(ctx); |
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| 153 | |||
| 154 | if (render->mode == IMM) { |
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| 155 | return MAX2(0, n - 4) / (render->vertex_size / 4 + |
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| 156 | render->attr_count); |
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| 157 | } else { |
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| 158 | unsigned max_out; |
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| 159 | |||
| 160 | if (ib) { |
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| 161 | switch (ib->type) { |
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| 162 | case GL_UNSIGNED_INT: |
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| 163 | max_out = MAX_OUT_I32; |
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| 164 | break; |
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| 165 | |||
| 166 | case GL_UNSIGNED_SHORT: |
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| 167 | max_out = MAX_OUT_I16; |
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| 168 | break; |
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| 169 | |||
| 170 | case GL_UNSIGNED_BYTE: |
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| 171 | max_out = MAX_OUT_I16; |
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| 172 | break; |
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| 173 | |||
| 174 | default: |
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| 175 | assert(0); |
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| 176 | max_out = 0; |
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| 177 | break; |
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| 178 | } |
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| 179 | } else { |
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| 180 | max_out = MAX_OUT_L; |
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| 181 | } |
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| 182 | |||
| 183 | return MAX2(0, n - 7) * max_out * MAX_PACKET / (1 + MAX_PACKET); |
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| 184 | } |
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| 185 | } |
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| 186 | |||
| 187 | static void |
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| 188 | TAG(emit_material)(struct gl_context *ctx, struct nouveau_array *a, |
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| 189 | const void *v) |
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| 190 | { |
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| 191 | int attr = a->attr - VERT_ATTRIB_GENERIC0; |
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| 192 | int state = ((int []) { |
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| 193 | NOUVEAU_STATE_MATERIAL_FRONT_AMBIENT, |
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| 194 | NOUVEAU_STATE_MATERIAL_BACK_AMBIENT, |
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| 195 | NOUVEAU_STATE_MATERIAL_FRONT_DIFFUSE, |
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| 196 | NOUVEAU_STATE_MATERIAL_BACK_DIFFUSE, |
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| 197 | NOUVEAU_STATE_MATERIAL_FRONT_SPECULAR, |
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| 198 | NOUVEAU_STATE_MATERIAL_BACK_SPECULAR, |
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| 199 | NOUVEAU_STATE_MATERIAL_FRONT_AMBIENT, |
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| 200 | NOUVEAU_STATE_MATERIAL_BACK_AMBIENT, |
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| 201 | NOUVEAU_STATE_MATERIAL_FRONT_SHININESS, |
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| 202 | NOUVEAU_STATE_MATERIAL_BACK_SHININESS |
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| 203 | }) [attr]; |
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| 204 | |||
| 205 | COPY_4V(ctx->Light.Material.Attrib[attr], (float *)v); |
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| 206 | _mesa_update_material(ctx, 1 << attr); |
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| 207 | |||
| 208 | context_drv(ctx)->emit[state](ctx, state); |
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| 209 | } |