src/gallium/drivers/freedreno/a4xx/fd4_context.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2014 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
  30 #include "fd4_context.h"
  31 #include "fd4_blend.h"
  32 #include "fd4_draw.h"
  33 #include "fd4_emit.h"
  34 #include "fd4_gmem.h"
  35 #include "fd4_program.h"
  36 #include "fd4_query.h"
  37 #include "fd4_rasterizer.h"
  38 #include "fd4_texture.h"
  39 #include "fd4_zsa.h"
  40
  41 static void
  42 fd4_context_destroy(struct pipe_context *pctx)
  43 {
  44         struct fd4_context *fd4_ctx = fd4_context(fd_context(pctx));
  45
  46         util_dynarray_fini(&fd4_ctx->rbrc_patches);
  47
  48         fd_bo_del(fd4_ctx->vs_pvt_mem);
  49         fd_bo_del(fd4_ctx->fs_pvt_mem);
  50         fd_bo_del(fd4_ctx->vsc_size_mem);
  51
  52         pctx->delete_vertex_elements_state(pctx, fd4_ctx->solid_vbuf_state.vtx);
  53         pctx->delete_vertex_elements_state(pctx, fd4_ctx->blit_vbuf_state.vtx);
  54
  55         pipe_resource_reference(&fd4_ctx->solid_vbuf, NULL);
  56         pipe_resource_reference(&fd4_ctx->blit_texcoord_vbuf, NULL);
  57
  58         fd_context_destroy(pctx);
  59 }
  60
  61 /* TODO we could combine a few of these small buffers (solid_vbuf,
  62  * blit_texcoord_vbuf, and vsc_size_mem, into a single buffer and
  63  * save a tiny bit of memory
  64  */
  65
  66 static struct pipe_resource *
  67 create_solid_vertexbuf(struct pipe_context *pctx)
  68 {
  69         static const float init_shader_const[] = {
  70                         -1.000000, +1.000000, +1.000000,
  71                         +1.000000, -1.000000, +1.000000,
  72         };
  73         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  74                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
  75         pipe_buffer_write(pctx, prsc, 0,
  76                         sizeof(init_shader_const), init_shader_const);
  77         return prsc;
  78 }
  79
  80 static struct pipe_resource *
  81 create_blit_texcoord_vertexbuf(struct pipe_context *pctx)
  82 {
  83         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  84                         PIPE_BIND_CUSTOM, PIPE_USAGE_DYNAMIC, 16);
  85         return prsc;
  86 }
  87
  88 static const uint8_t primtypes[PIPE_PRIM_MAX] = {
  89                 [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST,
  90                 [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
  91                 [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
  92                 [PIPE_PRIM_LINE_LOOP]      = DI_PT_LINELOOP,
  93                 [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
  94                 [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
  95                 [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
  96 };
  97
  98 struct pipe_context *
  99 fd4_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 100 {
 101         struct fd_screen *screen = fd_screen(pscreen);
 102         struct fd4_context *fd4_ctx = CALLOC_STRUCT(fd4_context);
 103         struct pipe_context *pctx;
 104
 105         if (!fd4_ctx)
 106                 return NULL;
 107
 108         pctx = &fd4_ctx->base.base;
 109
 110         fd4_ctx->base.dev = fd_device_ref(screen->dev);
 111         fd4_ctx->base.screen = fd_screen(pscreen);
 112
 113         pctx->destroy = fd4_context_destroy;
 114         pctx->create_blend_state = fd4_blend_state_create;
 115         pctx->create_rasterizer_state = fd4_rasterizer_state_create;
 116         pctx->create_depth_stencil_alpha_state = fd4_zsa_state_create;
 117
 118         fd4_draw_init(pctx);
 119         fd4_gmem_init(pctx);
 120         fd4_texture_init(pctx);
 121         fd4_prog_init(pctx);
 122         fd4_emit_init(pctx);
 123
 124         pctx = fd_context_init(&fd4_ctx->base, pscreen, primtypes, priv);
 125         if (!pctx)
 126                 return NULL;
 127
 128         util_dynarray_init(&fd4_ctx->rbrc_patches);
 129
 130         fd4_ctx->vs_pvt_mem = fd_bo_new(screen->dev, 0x2000,
 131                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 132
 133         fd4_ctx->fs_pvt_mem = fd_bo_new(screen->dev, 0x2000,
 134                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 135
 136         fd4_ctx->vsc_size_mem = fd_bo_new(screen->dev, 0x1000,
 137                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 138
 139         fd4_ctx->solid_vbuf = create_solid_vertexbuf(pctx);
 140         fd4_ctx->blit_texcoord_vbuf = create_blit_texcoord_vertexbuf(pctx);
 141
 142         /* setup solid_vbuf_state: */
 143         fd4_ctx->solid_vbuf_state.vtx = pctx->create_vertex_elements_state(
 144                         pctx, 1, (struct pipe_vertex_element[]){{
 145                                 .vertex_buffer_index = 0,
 146                                 .src_offset = 0,
 147                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 148                         }});
 149         fd4_ctx->solid_vbuf_state.vertexbuf.count = 1;
 150         fd4_ctx->solid_vbuf_state.vertexbuf.vb[0].stride = 12;
 151         fd4_ctx->solid_vbuf_state.vertexbuf.vb[0].buffer = fd4_ctx->solid_vbuf;
 152
 153         /* setup blit_vbuf_state: */
 154         fd4_ctx->blit_vbuf_state.vtx = pctx->create_vertex_elements_state(
 155                         pctx, 2, (struct pipe_vertex_element[]){{
 156                                 .vertex_buffer_index = 0,
 157                                 .src_offset = 0,
 158                                 .src_format = PIPE_FORMAT_R32G32_FLOAT,
 159                         }, {
 160                                 .vertex_buffer_index = 1,
 161                                 .src_offset = 0,
 162                                 .src_format = PIPE_FORMAT_R32G32B32_FLOAT,
 163                         }});
 164         fd4_ctx->blit_vbuf_state.vertexbuf.count = 2;
 165         fd4_ctx->blit_vbuf_state.vertexbuf.vb[0].stride = 8;
 166         fd4_ctx->blit_vbuf_state.vertexbuf.vb[0].buffer = fd4_ctx->blit_texcoord_vbuf;
 167         fd4_ctx->blit_vbuf_state.vertexbuf.vb[1].stride = 12;
 168         fd4_ctx->blit_vbuf_state.vertexbuf.vb[1].buffer = fd4_ctx->solid_vbuf;
 169
 170         fd4_query_context_init(pctx);
 171
 172         return pctx;
 173 }