1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ 2 3 /* 4 * Copyright (C) 2012 Rob Clark <robclark (at) freedesktop.org> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Authors: 26 * Rob Clark <robclark (at) freedesktop.org> 27 */ 28 29 #include "pipe/p_state.h" 30 #include "util/u_string.h" 31 #include "util/u_memory.h" 32 #include "util/u_inlines.h" 33 34 #include "freedreno_texture.h" 35 #include "freedreno_context.h" 36 #include "freedreno_util.h" 37 38 static void 39 fd_sampler_state_delete(struct pipe_context *pctx, void *hwcso) 40 { 41 FREE(hwcso); 42 } 43 44 static void 45 fd_sampler_view_destroy(struct pipe_context *pctx, 46 struct pipe_sampler_view *view) 47 { 48 pipe_resource_reference(&view->texture, NULL); 49 FREE(view); 50 } 51 52 static void bind_sampler_states(struct fd_texture_stateobj *tex, 53 unsigned start, unsigned nr, void **hwcso) 54 { 55 unsigned i; 56 57 for (i = 0; i < nr; i++) { 58 unsigned p = i + start; 59 tex->samplers[p] = hwcso[i]; 60 if (tex->samplers[p]) 61 tex->valid_samplers |= (1 << p); 62 else 63 tex->valid_samplers &= ~(1 << p); 64 } 65 66 tex->num_samplers = util_last_bit(tex->valid_samplers); 67 } 68 69 static void set_sampler_views(struct fd_texture_stateobj *tex, 70 unsigned start, unsigned nr, struct pipe_sampler_view **views) 71 { 72 unsigned i; 73 74 for (i = 0; i < nr; i++) { 75 struct pipe_sampler_view *view = views ? views[i] : NULL; 76 unsigned p = i + start; 77 pipe_sampler_view_reference(&tex->textures[p], view); 78 if (tex->textures[p]) 79 tex->valid_textures |= (1 << p); 80 else 81 tex->valid_textures &= ~(1 << p); 82 } 83 84 tex->num_textures = util_last_bit(tex->valid_textures); 85 } 86 87 void 88 fd_sampler_states_bind(struct pipe_context *pctx, 89 enum pipe_shader_type shader, unsigned start, 90 unsigned nr, void **hwcso) 91 { 92 struct fd_context *ctx = fd_context(pctx); 93 94 bind_sampler_states(&ctx->tex[shader], start, nr, hwcso); 95 ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX; 96 ctx->dirty |= FD_DIRTY_TEX; 97 } 98 99 void 100 fd_set_sampler_views(struct pipe_context *pctx, enum pipe_shader_type shader, 101 unsigned start, unsigned nr, 102 struct pipe_sampler_view **views) 103 { 104 struct fd_context *ctx = fd_context(pctx); 105 106 set_sampler_views(&ctx->tex[shader], start, nr, views); 107 ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX; 108 ctx->dirty |= FD_DIRTY_TEX; 109 } 110 111 void 112 fd_texture_init(struct pipe_context *pctx) 113 { 114 pctx->delete_sampler_state = fd_sampler_state_delete; 115 116 pctx->sampler_view_destroy = fd_sampler_view_destroy; 117 } 118 119 /* helper for setting up border-color buffer for a3xx/a4xx: */ 120 void 121 fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr, 122 unsigned offset) 123 { 124 unsigned i, j; 125 126 for (i = 0; i < tex->num_samplers; i++) { 127 struct pipe_sampler_state *sampler = tex->samplers[i]; 128 uint16_t *bcolor = (uint16_t *)((uint8_t *)ptr + 129 (BORDERCOLOR_SIZE * offset) + 130 (BORDERCOLOR_SIZE * i)); 131 uint32_t *bcolor32 = (uint32_t *)&bcolor[16]; 132 133 if (!sampler) 134 continue; 135 136 /* 137 * XXX HACK ALERT XXX 138 * 139 * The border colors need to be swizzled in a particular 140 * format-dependent order. Even though samplers don't know about 141 * formats, we can assume that with a GL state tracker, there's a 142 * 1:1 correspondence between sampler and texture. Take advantage 143 * of that knowledge. 144 */ 145 if (i < tex->num_textures && tex->textures[i]) { 146 const struct util_format_description *desc = 147 util_format_description(tex->textures[i]->format); 148 for (j = 0; j < 4; j++) { 149 if (desc->swizzle[j] >= 4) 150 continue; 151 152 const struct util_format_channel_description *chan = 153 &desc->channel[desc->swizzle[j]]; 154 if (chan->pure_integer) { 155 bcolor32[desc->swizzle[j] + 4] = sampler->border_color.i[j]; 156 bcolor[desc->swizzle[j] + 8] = sampler->border_color.i[j]; 157 } else { 158 bcolor32[desc->swizzle[j]] = fui(sampler->border_color.f[j]); 159 bcolor[desc->swizzle[j]] = 160 util_float_to_half(sampler->border_color.f[j]); 161 } 162 } 163 } 164 } 165 } 166
