src/gallium/drivers/freedreno/freedreno_state.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@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@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_helpers.h"
  33
  34 #include "freedreno_state.h"
  35 #include "freedreno_context.h"
  36 #include "freedreno_resource.h"
  37 #include "freedreno_texture.h"
  38 #include "freedreno_gmem.h"
  39 #include "freedreno_util.h"
  40
  41 /* All the generic state handling.. In case of CSO's that are specific
  42  * to the GPU version, when the bind and the delete are common they can
  43  * go in here.
  44  */
  45
  46 static void
  47 fd_set_blend_color(struct pipe_context *pctx,
  48                 const struct pipe_blend_color *blend_color)
  49 {
  50         struct fd_context *ctx = fd_context(pctx);
  51         ctx->blend_color = *blend_color;
  52         ctx->dirty |= FD_DIRTY_BLEND_COLOR;
  53 }
  54
  55 static void
  56 fd_set_stencil_ref(struct pipe_context *pctx,
  57                 const struct pipe_stencil_ref *stencil_ref)
  58 {
  59         struct fd_context *ctx = fd_context(pctx);
  60         ctx->stencil_ref =* stencil_ref;
  61         ctx->dirty |= FD_DIRTY_STENCIL_REF;
  62 }
  63
  64 static void
  65 fd_set_clip_state(struct pipe_context *pctx,
  66                 const struct pipe_clip_state *clip)
  67 {
  68         DBG("TODO: ");
  69 }
  70
  71 static void
  72 fd_set_sample_mask(struct pipe_context *pctx, unsigned sample_mask)
  73 {
  74         struct fd_context *ctx = fd_context(pctx);
  75         ctx->sample_mask = (uint16_t)sample_mask;
  76         ctx->dirty |= FD_DIRTY_SAMPLE_MASK;
  77 }
  78
  79 /* notes from calim on #dri-devel:
  80  * index==0 will be non-UBO (ie. glUniformXYZ()) all packed together padded
  81  * out to vec4's
  82  * I should be able to consider that I own the user_ptr until the next
  83  * set_constant_buffer() call, at which point I don't really care about the
  84  * previous values.
  85  * index>0 will be UBO's.. well, I'll worry about that later
  86  */
  87 static void
  88 fd_set_constant_buffer(struct pipe_context *pctx, uint shader, uint index,
  89                 struct pipe_constant_buffer *cb)
  90 {
  91         struct fd_context *ctx = fd_context(pctx);
  92         struct fd_constbuf_stateobj *so = &ctx->constbuf[shader];
  93
  94         /* Note that the state tracker can unbind constant buffers by
  95          * passing NULL here.
  96          */
  97         if (unlikely(!cb)) {
  98                 so->enabled_mask &= ~(1 << index);
  99                 so->dirty_mask &= ~(1 << index);
 100                 pipe_resource_reference(&so->cb[index].buffer, NULL);
 101                 return;
 102         }
 103
 104         pipe_resource_reference(&so->cb[index].buffer, cb->buffer);
 105         so->cb[index].buffer_offset = cb->buffer_offset;
 106         so->cb[index].buffer_size   = cb->buffer_size;
 107         so->cb[index].user_buffer   = cb->user_buffer;
 108
 109         so->enabled_mask |= 1 << index;
 110         so->dirty_mask |= 1 << index;
 111         ctx->dirty |= FD_DIRTY_CONSTBUF;
 112 }
 113
 114 static void
 115 fd_set_framebuffer_state(struct pipe_context *pctx,
 116                 const struct pipe_framebuffer_state *framebuffer)
 117 {
 118         struct fd_context *ctx = fd_context(pctx);
 119         struct pipe_framebuffer_state *cso = &ctx->framebuffer;
 120         unsigned i;
 121
 122         DBG("%d: cbufs[0]=%p, zsbuf=%p", ctx->needs_flush,
 123                         framebuffer->cbufs[0], framebuffer->zsbuf);
 124
 125         fd_context_render(pctx);
 126
 127         for (i = 0; i < framebuffer->nr_cbufs; i++)
 128                 pipe_surface_reference(&cso->cbufs[i], framebuffer->cbufs[i]);
 129         for (; i < ctx->framebuffer.nr_cbufs; i++)
 130                 pipe_surface_reference(&cso->cbufs[i], NULL);
 131
 132         cso->nr_cbufs = framebuffer->nr_cbufs;
 133         cso->width = framebuffer->width;
 134         cso->height = framebuffer->height;
 135
 136         pipe_surface_reference(&cso->zsbuf, framebuffer->zsbuf);
 137
 138         ctx->dirty |= FD_DIRTY_FRAMEBUFFER;
 139
 140         ctx->disabled_scissor.minx = 0;
 141         ctx->disabled_scissor.miny = 0;
 142         ctx->disabled_scissor.maxx = cso->width;
 143         ctx->disabled_scissor.maxy = cso->height;
 144
 145         ctx->dirty |= FD_DIRTY_SCISSOR;
 146 }
 147
 148 static void
 149 fd_set_polygon_stipple(struct pipe_context *pctx,
 150                 const struct pipe_poly_stipple *stipple)
 151 {
 152         struct fd_context *ctx = fd_context(pctx);
 153         ctx->stipple = *stipple;
 154         ctx->dirty |= FD_DIRTY_STIPPLE;
 155 }
 156
 157 static void
 158 fd_set_scissor_states(struct pipe_context *pctx,
 159                 unsigned start_slot,
 160                 unsigned num_scissors,
 161                 const struct pipe_scissor_state *scissor)
 162 {
 163         struct fd_context *ctx = fd_context(pctx);
 164
 165         ctx->scissor = *scissor;
 166         ctx->dirty |= FD_DIRTY_SCISSOR;
 167 }
 168
 169 static void
 170 fd_set_viewport_states(struct pipe_context *pctx,
 171                 unsigned start_slot,
 172                 unsigned num_viewports,
 173                 const struct pipe_viewport_state *viewport)
 174 {
 175         struct fd_context *ctx = fd_context(pctx);
 176         ctx->viewport = *viewport;
 177         ctx->dirty |= FD_DIRTY_VIEWPORT;
 178 }
 179
 180 static void
 181 fd_set_vertex_buffers(struct pipe_context *pctx,
 182                 unsigned start_slot, unsigned count,
 183                 const struct pipe_vertex_buffer *vb)
 184 {
 185         struct fd_context *ctx = fd_context(pctx);
 186         struct fd_vertexbuf_stateobj *so = &ctx->vertexbuf;
 187         int i;
 188
 189         /* on a2xx, pitch is encoded in the vtx fetch instruction, so
 190          * we need to mark VTXSTATE as dirty as well to trigger patching
 191          * and re-emitting the vtx shader:
 192          */
 193         for (i = 0; i < count; i++) {
 194                 bool new_enabled = vb && (vb[i].buffer || vb[i].user_buffer);
 195                 bool old_enabled = so->vb[i].buffer || so->vb[i].user_buffer;
 196                 uint32_t new_stride = vb ? vb[i].stride : 0;
 197                 uint32_t old_stride = so->vb[i].stride;
 198                 if ((new_enabled != old_enabled) || (new_stride != old_stride)) {
 199                         ctx->dirty |= FD_DIRTY_VTXSTATE;
 200                         break;
 201                 }
 202         }
 203
 204         util_set_vertex_buffers_mask(so->vb, &so->enabled_mask, vb, start_slot, count);
 205         so->count = util_last_bit(so->enabled_mask);
 206
 207         ctx->dirty |= FD_DIRTY_VTXBUF;
 208 }
 209
 210 static void
 211 fd_set_index_buffer(struct pipe_context *pctx,
 212                 const struct pipe_index_buffer *ib)
 213 {
 214         struct fd_context *ctx = fd_context(pctx);
 215
 216         if (ib) {
 217                 pipe_resource_reference(&ctx->indexbuf.buffer, ib->buffer);
 218                 ctx->indexbuf.index_size = ib->index_size;
 219                 ctx->indexbuf.offset = ib->offset;
 220                 ctx->indexbuf.user_buffer = ib->user_buffer;
 221         } else {
 222                 pipe_resource_reference(&ctx->indexbuf.buffer, NULL);
 223         }
 224
 225         ctx->dirty |= FD_DIRTY_INDEXBUF;
 226 }
 227
 228 static void
 229 fd_blend_state_bind(struct pipe_context *pctx, void *hwcso)
 230 {
 231         struct fd_context *ctx = fd_context(pctx);
 232         ctx->blend = hwcso;
 233         ctx->dirty |= FD_DIRTY_BLEND;
 234 }
 235
 236 static void
 237 fd_blend_state_delete(struct pipe_context *pctx, void *hwcso)
 238 {
 239         FREE(hwcso);
 240 }
 241
 242 static void
 243 fd_rasterizer_state_bind(struct pipe_context *pctx, void *hwcso)
 244 {
 245         struct fd_context *ctx = fd_context(pctx);
 246         ctx->rasterizer = hwcso;
 247         ctx->dirty |= FD_DIRTY_RASTERIZER;
 248 }
 249
 250 static void
 251 fd_rasterizer_state_delete(struct pipe_context *pctx, void *hwcso)
 252 {
 253         FREE(hwcso);
 254 }
 255
 256 static void
 257 fd_zsa_state_bind(struct pipe_context *pctx, void *hwcso)
 258 {
 259         struct fd_context *ctx = fd_context(pctx);
 260         ctx->zsa = hwcso;
 261         ctx->dirty |= FD_DIRTY_ZSA;
 262 }
 263
 264 static void
 265 fd_zsa_state_delete(struct pipe_context *pctx, void *hwcso)
 266 {
 267         FREE(hwcso);
 268 }
 269
 270 static void *
 271 fd_vertex_state_create(struct pipe_context *pctx, unsigned num_elements,
 272                 const struct pipe_vertex_element *elements)
 273 {
 274         struct fd_vertex_stateobj *so = CALLOC_STRUCT(fd_vertex_stateobj);
 275
 276         if (!so)
 277                 return NULL;
 278
 279         memcpy(so->pipe, elements, sizeof(*elements) * num_elements);
 280         so->num_elements = num_elements;
 281
 282         return so;
 283 }
 284
 285 static void
 286 fd_vertex_state_delete(struct pipe_context *pctx, void *hwcso)
 287 {
 288         FREE(hwcso);
 289 }
 290
 291 static void
 292 fd_vertex_state_bind(struct pipe_context *pctx, void *hwcso)
 293 {
 294         struct fd_context *ctx = fd_context(pctx);
 295         ctx->vtx = hwcso;
 296         ctx->dirty |= FD_DIRTY_VTXSTATE;
 297 }
 298
 299 void
 300 fd_state_init(struct pipe_context *pctx)
 301 {
 302         pctx->set_blend_color = fd_set_blend_color;
 303         pctx->set_stencil_ref = fd_set_stencil_ref;
 304         pctx->set_clip_state = fd_set_clip_state;
 305         pctx->set_sample_mask = fd_set_sample_mask;
 306         pctx->set_constant_buffer = fd_set_constant_buffer;
 307         pctx->set_framebuffer_state = fd_set_framebuffer_state;
 308         pctx->set_polygon_stipple = fd_set_polygon_stipple;
 309         pctx->set_scissor_states = fd_set_scissor_states;
 310         pctx->set_viewport_states = fd_set_viewport_states;
 311
 312         pctx->set_vertex_buffers = fd_set_vertex_buffers;
 313         pctx->set_index_buffer = fd_set_index_buffer;
 314
 315         pctx->bind_blend_state = fd_blend_state_bind;
 316         pctx->delete_blend_state = fd_blend_state_delete;
 317
 318         pctx->bind_rasterizer_state = fd_rasterizer_state_bind;
 319         pctx->delete_rasterizer_state = fd_rasterizer_state_delete;
 320
 321         pctx->bind_depth_stencil_alpha_state = fd_zsa_state_bind;
 322         pctx->delete_depth_stencil_alpha_state = fd_zsa_state_delete;
 323
 324         pctx->create_vertex_elements_state = fd_vertex_state_create;
 325         pctx->delete_vertex_elements_state = fd_vertex_state_delete;
 326         pctx->bind_vertex_elements_state = fd_vertex_state_bind;
 327 }