src/gallium/drivers/freedreno/a3xx/fd3_context.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2013 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 "fd3_context.h"
  31 #include "fd3_blend.h"
  32 #include "fd3_draw.h"
  33 #include "fd3_emit.h"
  34 #include "fd3_gmem.h"
  35 #include "fd3_program.h"
  36 #include "fd3_rasterizer.h"
  37 #include "fd3_texture.h"
  38 #include "fd3_zsa.h"
  39
  40 static void
  41 fd3_context_destroy(struct pipe_context *pctx)
  42 {
  43         struct fd3_context *fd3_ctx = fd3_context(fd_context(pctx));
  44
  45         fd3_prog_fini(pctx);
  46
  47         fd_bo_del(fd3_ctx->vs_pvt_mem);
  48         fd_bo_del(fd3_ctx->fs_pvt_mem);
  49         fd_bo_del(fd3_ctx->vsc_size_mem);
  50
  51         pipe_resource_reference(&fd3_ctx->solid_vbuf, NULL);
  52         pipe_resource_reference(&fd3_ctx->blit_texcoord_vbuf, NULL);
  53
  54         fd_context_destroy(pctx);
  55 }
  56
  57 /* TODO we could combine a few of these small buffers (solid_vbuf,
  58  * blit_texcoord_vbuf, and vsc_size_mem, into a single buffer and
  59  * save a tiny bit of memory
  60  */
  61
  62 static struct pipe_resource *
  63 create_solid_vertexbuf(struct pipe_context *pctx)
  64 {
  65         static const float init_shader_const[] = {
  66                         -1.000000, +1.000000, +1.000000,
  67                         +1.000000, -1.000000, +1.000000,
  68         };
  69         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  70                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
  71         pipe_buffer_write(pctx, prsc, 0,
  72                         sizeof(init_shader_const), init_shader_const);
  73         return prsc;
  74 }
  75
  76 static struct pipe_resource *
  77 create_blit_texcoord_vertexbuf(struct pipe_context *pctx)
  78 {
  79         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  80                         PIPE_BIND_CUSTOM, PIPE_USAGE_DYNAMIC, 16);
  81         return prsc;
  82 }
  83
  84 static const uint8_t primtypes[PIPE_PRIM_MAX] = {
  85                 [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_A3XX,
  86                 [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
  87                 [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
  88                 [PIPE_PRIM_LINE_LOOP]      = DI_PT_LINELOOP,
  89                 [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
  90                 [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
  91                 [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
  92 };
  93
  94 struct pipe_context *
  95 fd3_context_create(struct pipe_screen *pscreen, void *priv)
  96 {
  97         struct fd_screen *screen = fd_screen(pscreen);
  98         struct fd3_context *fd3_ctx = CALLOC_STRUCT(fd3_context);
  99         struct pipe_context *pctx;
 100
 101         if (!fd3_ctx)
 102                 return NULL;
 103
 104         pctx = &fd3_ctx->base.base;
 105
 106         fd3_ctx->base.screen = fd_screen(pscreen);
 107
 108         pctx->destroy = fd3_context_destroy;
 109         pctx->create_blend_state = fd3_blend_state_create;
 110         pctx->create_rasterizer_state = fd3_rasterizer_state_create;
 111         pctx->create_depth_stencil_alpha_state = fd3_zsa_state_create;
 112
 113         fd3_draw_init(pctx);
 114         fd3_gmem_init(pctx);
 115         fd3_texture_init(pctx);
 116         fd3_prog_init(pctx);
 117
 118         pctx = fd_context_init(&fd3_ctx->base, pscreen, primtypes, priv);
 119         if (!pctx)
 120                 return NULL;
 121
 122         fd3_ctx->vs_pvt_mem = fd_bo_new(screen->dev, 0x2000,
 123                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 124
 125         fd3_ctx->fs_pvt_mem = fd_bo_new(screen->dev, 0x2000,
 126                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 127
 128         fd3_ctx->vsc_size_mem = fd_bo_new(screen->dev, 0x1000,
 129                         DRM_FREEDRENO_GEM_TYPE_KMEM);
 130
 131         fd3_ctx->solid_vbuf = create_solid_vertexbuf(pctx);
 132         fd3_ctx->blit_texcoord_vbuf = create_blit_texcoord_vertexbuf(pctx);
 133
 134         return pctx;
 135 }