1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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:
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
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
26 * Rob Clark <robclark@freedesktop.org>
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 #include "util/u_format.h"
35 #include "fd3_texture.h"
36 #include "fd3_format.h"
38 static enum a3xx_tex_clamp
39 tex_clamp(unsigned wrap, bool clamp_to_edge)
41 /* Hardware does not support _CLAMP, but we emulate it: */
42 if (wrap == PIPE_TEX_WRAP_CLAMP) {
43 wrap = (clamp_to_edge) ?
44 PIPE_TEX_WRAP_CLAMP_TO_EDGE : PIPE_TEX_WRAP_CLAMP_TO_BORDER;
48 case PIPE_TEX_WRAP_REPEAT:
49 return A3XX_TEX_REPEAT;
50 case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
51 return A3XX_TEX_CLAMP_TO_EDGE;
52 case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
53 return A3XX_TEX_CLAMP_TO_BORDER;
54 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
55 /* only works for PoT.. need to emulate otherwise! */
56 return A3XX_TEX_MIRROR_CLAMP;
57 case PIPE_TEX_WRAP_MIRROR_REPEAT:
58 return A3XX_TEX_MIRROR_REPEAT;
59 case PIPE_TEX_WRAP_MIRROR_CLAMP:
60 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
61 /* these two we could perhaps emulate, but we currently
62 * just don't advertise PIPE_CAP_TEXTURE_MIRROR_CLAMP
65 DBG("invalid wrap: %u", wrap);
70 static enum a3xx_tex_filter
71 tex_filter(unsigned filter, bool aniso)
74 case PIPE_TEX_FILTER_NEAREST:
75 return A3XX_TEX_NEAREST;
76 case PIPE_TEX_FILTER_LINEAR:
77 return aniso ? A3XX_TEX_ANISO : A3XX_TEX_LINEAR;
79 DBG("invalid filter: %u", filter);
85 fd3_sampler_state_create(struct pipe_context *pctx,
86 const struct pipe_sampler_state *cso)
88 struct fd3_sampler_stateobj *so = CALLOC_STRUCT(fd3_sampler_stateobj);
89 unsigned aniso = util_last_bit(MIN2(cso->max_anisotropy >> 1, 8));
90 bool miplinear = false;
96 if (cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR)
102 * For nearest filtering, _CLAMP means _CLAMP_TO_EDGE; for linear
103 * filtering, _CLAMP means _CLAMP_TO_BORDER while additionally
104 * clamping the texture coordinates to [0.0, 1.0].
106 * The clamping will be taken care of in the shaders. There are two
107 * filters here, but let the minification one has a say.
109 clamp_to_edge = (cso->min_img_filter == PIPE_TEX_FILTER_NEAREST);
110 if (!clamp_to_edge) {
111 so->saturate_s = (cso->wrap_s == PIPE_TEX_WRAP_CLAMP);
112 so->saturate_t = (cso->wrap_t == PIPE_TEX_WRAP_CLAMP);
113 so->saturate_r = (cso->wrap_r == PIPE_TEX_WRAP_CLAMP);
117 COND(!cso->normalized_coords, A3XX_TEX_SAMP_0_UNNORM_COORDS) |
118 COND(miplinear, A3XX_TEX_SAMP_0_MIPFILTER_LINEAR) |
119 A3XX_TEX_SAMP_0_XY_MAG(tex_filter(cso->mag_img_filter, aniso)) |
120 A3XX_TEX_SAMP_0_XY_MIN(tex_filter(cso->min_img_filter, aniso)) |
121 A3XX_TEX_SAMP_0_ANISO(aniso) |
122 A3XX_TEX_SAMP_0_WRAP_S(tex_clamp(cso->wrap_s, clamp_to_edge)) |
123 A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso->wrap_t, clamp_to_edge)) |
124 A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso->wrap_r, clamp_to_edge));
126 if (cso->compare_mode)
127 so->texsamp0 |= A3XX_TEX_SAMP_0_COMPARE_FUNC(cso->compare_func); /* maps 1:1 */
129 if (cso->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
131 A3XX_TEX_SAMP_1_LOD_BIAS(cso->lod_bias) |
132 A3XX_TEX_SAMP_1_MIN_LOD(cso->min_lod) |
133 A3XX_TEX_SAMP_1_MAX_LOD(cso->max_lod);
135 so->texsamp1 = 0x00000000;
142 fd3_sampler_states_bind(struct pipe_context *pctx,
143 unsigned shader, unsigned start,
144 unsigned nr, void **hwcso)
146 struct fd_context *ctx = fd_context(pctx);
147 struct fd3_context *fd3_ctx = fd3_context(ctx);
148 uint16_t saturate_s = 0, saturate_t = 0, saturate_r = 0;
151 for (i = 0; i < nr; i++) {
153 struct fd3_sampler_stateobj *sampler =
154 fd3_sampler_stateobj(hwcso[i]);
155 if (sampler->saturate_s)
156 saturate_s |= (1 << i);
157 if (sampler->saturate_t)
158 saturate_t |= (1 << i);
159 if (sampler->saturate_r)
160 saturate_r |= (1 << i);
164 fd_sampler_states_bind(pctx, shader, start, nr, hwcso);
166 if (shader == PIPE_SHADER_FRAGMENT) {
171 fd3_ctx->fsaturate_s = saturate_s;
172 fd3_ctx->fsaturate_t = saturate_t;
173 fd3_ctx->fsaturate_r = saturate_r;
174 } else if (shader == PIPE_SHADER_VERTEX) {
179 fd3_ctx->vsaturate_s = saturate_s;
180 fd3_ctx->vsaturate_t = saturate_t;
181 fd3_ctx->vsaturate_r = saturate_r;
185 static enum a3xx_tex_type
186 tex_type(unsigned target)
192 case PIPE_TEXTURE_1D:
193 case PIPE_TEXTURE_1D_ARRAY:
195 case PIPE_TEXTURE_RECT:
196 case PIPE_TEXTURE_2D:
197 case PIPE_TEXTURE_2D_ARRAY:
199 case PIPE_TEXTURE_3D:
201 case PIPE_TEXTURE_CUBE:
202 case PIPE_TEXTURE_CUBE_ARRAY:
203 return A3XX_TEX_CUBE;
207 static struct pipe_sampler_view *
208 fd3_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc,
209 const struct pipe_sampler_view *cso)
211 struct fd3_pipe_sampler_view *so = CALLOC_STRUCT(fd3_pipe_sampler_view);
212 struct fd_resource *rsc = fd_resource(prsc);
213 unsigned lvl = cso->u.tex.first_level;
214 unsigned miplevels = cso->u.tex.last_level - lvl;
221 pipe_reference(NULL, &prsc->reference);
222 so->base.texture = prsc;
223 so->base.reference.count = 1;
224 so->base.context = pctx;
226 so->tex_resource = rsc;
229 A3XX_TEX_CONST_0_TYPE(tex_type(prsc->target)) |
230 A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso->format)) |
231 A3XX_TEX_CONST_0_MIPLVLS(miplevels) |
232 fd3_tex_swiz(cso->format, cso->swizzle_r, cso->swizzle_g,
233 cso->swizzle_b, cso->swizzle_a);
235 if (util_format_is_srgb(cso->format))
236 so->texconst0 |= A3XX_TEX_CONST_0_SRGB;
239 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso->format)) |
240 A3XX_TEX_CONST_1_WIDTH(u_minify(prsc->width0, lvl)) |
241 A3XX_TEX_CONST_1_HEIGHT(u_minify(prsc->height0, lvl));
242 /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */
244 A3XX_TEX_CONST_2_PITCH(rsc->slices[lvl].pitch * rsc->cpp);
245 switch (prsc->target) {
246 case PIPE_TEXTURE_1D_ARRAY:
247 case PIPE_TEXTURE_2D_ARRAY:
249 A3XX_TEX_CONST_3_DEPTH(prsc->array_size - 1) |
250 A3XX_TEX_CONST_3_LAYERSZ1(rsc->slices[0].size0);
252 case PIPE_TEXTURE_3D:
254 A3XX_TEX_CONST_3_DEPTH(u_minify(prsc->depth0, lvl)) |
255 A3XX_TEX_CONST_3_LAYERSZ1(rsc->slices[lvl].size0);
256 while (lvl < cso->u.tex.last_level && sz2 != rsc->slices[lvl+1].size0)
257 sz2 = rsc->slices[++lvl].size0;
258 so->texconst3 |= A3XX_TEX_CONST_3_LAYERSZ2(sz2);
261 so->texconst3 = 0x00000000;
269 fd3_set_sampler_views(struct pipe_context *pctx, unsigned shader,
270 unsigned start, unsigned nr,
271 struct pipe_sampler_view **views)
273 struct fd_context *ctx = fd_context(pctx);
274 struct fd3_context *fd3_ctx = fd3_context(ctx);
275 struct fd_texture_stateobj *tex;
276 uint16_t integer_s = 0, *ptr;
279 fd_set_sampler_views(pctx, shader, start, nr, views);
282 case PIPE_SHADER_FRAGMENT:
284 ptr = &fd3_ctx->finteger_s;
286 case PIPE_SHADER_VERTEX:
288 ptr = &fd3_ctx->vinteger_s;
294 for (i = 0; i < tex->num_textures; i++)
295 if (util_format_is_pure_integer(tex->textures[i]->format))
302 fd3_texture_init(struct pipe_context *pctx)
304 pctx->create_sampler_state = fd3_sampler_state_create;
305 pctx->bind_sampler_states = fd3_sampler_states_bind;
306 pctx->create_sampler_view = fd3_sampler_view_create;
307 pctx->set_sampler_views = fd3_set_sampler_views;