src/gallium/drivers/freedreno/a2xx/fd2_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 "fd2_context.h"
  31 #include "fd2_blend.h"
  32 #include "fd2_draw.h"
  33 #include "fd2_emit.h"
  34 #include "fd2_gmem.h"
  35 #include "fd2_program.h"
  36 #include "fd2_rasterizer.h"
  37 #include "fd2_texture.h"
  38 #include "fd2_zsa.h"
  39
  40 static void
  41 fd2_context_destroy(struct pipe_context *pctx)
  42 {
  43         fd2_prog_fini(pctx);
  44         fd_context_destroy(pctx);
  45 }
  46
  47 static struct pipe_resource *
  48 create_solid_vertexbuf(struct pipe_context *pctx)
  49 {
  50         static const float init_shader_const[] = {
  51                         /* for clear/gmem2mem: */
  52                         -1.000000, +1.000000, +1.000000, +1.100000,
  53                         +1.000000, +1.000000, -1.000000, -1.100000,
  54                         +1.000000, +1.100000, -1.100000, +1.000000,
  55                         /* for mem2gmem: (vertices) */
  56                         -1.000000, +1.000000, +1.000000, +1.000000,
  57                         +1.000000, +1.000000, -1.000000, -1.000000,
  58                         +1.000000, +1.000000, -1.000000, +1.000000,
  59                         /* for mem2gmem: (tex coords) */
  60                         +0.000000, +0.000000, +1.000000, +0.000000,
  61                         +0.000000, +1.000000, +1.000000, +1.000000,
  62         };
  63         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  64                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
  65         pipe_buffer_write(pctx, prsc, 0,
  66                         sizeof(init_shader_const), init_shader_const);
  67         return prsc;
  68 }
  69
  70 struct pipe_context *
  71 fd2_context_create(struct pipe_screen *pscreen, void *priv)
  72 {
  73         struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
  74         struct pipe_context *pctx;
  75
  76         if (!fd2_ctx)
  77                 return NULL;
  78
  79         pctx = &fd2_ctx->base.base;
  80
  81         pctx->destroy = fd2_context_destroy;
  82         pctx->create_blend_state = fd2_blend_state_create;
  83         pctx->create_rasterizer_state = fd2_rasterizer_state_create;
  84         pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
  85
  86         fd2_draw_init(pctx);
  87         fd2_gmem_init(pctx);
  88         fd2_texture_init(pctx);
  89         fd2_prog_init(pctx);
  90
  91         pctx = fd_context_init(&fd2_ctx->base, pscreen, priv);
  92         if (!pctx)
  93                 return NULL;
  94
  95         /* construct vertex state used for solid ops (clear, and gmem<->mem) */
  96         fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
  97
  98         fd2_emit_setup(&fd2_ctx->base);
  99
 100         return pctx;
 101 }