1/*
2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Rob Clark <robclark@freedesktop.org>
25 */
26
27#include "fd2_context.h"
28#include "fd2_blend.h"
29#include "fd2_draw.h"
30#include "fd2_emit.h"
31#include "fd2_gmem.h"
32#include "fd2_program.h"
33#include "fd2_query.h"
34#include "fd2_rasterizer.h"
35#include "fd2_texture.h"
36#include "fd2_zsa.h"
37
38static void
39fd2_context_destroy(struct pipe_context *pctx) in_dt
40{
41   fd_context_destroy(pctx);
42   free(pctx);
43}
44
45static struct pipe_resource *
46create_solid_vertexbuf(struct pipe_context *pctx)
47{
48   /* clang-format off */
49   static const float init_shader_const[] = {
50      /* for clear/gmem2mem/mem2gmem (vertices): */
51      -1.000000, +1.000000, +1.000000,
52      +1.000000, +1.000000, +1.000000,
53      -1.000000, -1.000000, +1.000000,
54      /* for mem2gmem: (tex coords) */
55      +0.000000, +0.000000,
56      +1.000000, +0.000000,
57      +0.000000, +1.000000,
58      /* SCREEN_SCISSOR_BR value (must be at 60 byte offset in page) */
59      0.0,
60      /* zero indices dummy draw workaround (3 16-bit zeros) */
61      0.0, 0.0,
62   };
63   /* clang-format on */
64
65   struct pipe_resource *prsc =
66      pipe_buffer_create(pctx->screen, PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE,
67                         sizeof(init_shader_const));
68   pipe_buffer_write(pctx, prsc, 0, sizeof(init_shader_const),
69                     init_shader_const);
70   return prsc;
71}
72
73struct pipe_context *
74fd2_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
75{
76   struct fd_screen *screen = fd_screen(pscreen);
77   struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
78   struct pipe_context *pctx;
79
80   if (!fd2_ctx)
81      return NULL;
82
83   pctx = &fd2_ctx->base.base;
84   pctx->screen = pscreen;
85
86   fd2_ctx->base.dev = fd_device_ref(screen->dev);
87   fd2_ctx->base.screen = fd_screen(pscreen);
88
89   pctx->destroy = fd2_context_destroy;
90   pctx->create_blend_state = fd2_blend_state_create;
91   pctx->create_rasterizer_state = fd2_rasterizer_state_create;
92   pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
93
94   fd2_draw_init(pctx);
95   fd2_gmem_init(pctx);
96   fd2_texture_init(pctx);
97   fd2_prog_init(pctx);
98   fd2_emit_init(pctx);
99
100   pctx = fd_context_init(&fd2_ctx->base, pscreen, priv, flags);
101   if (!pctx)
102      return NULL;
103
104   /* construct vertex state used for solid ops (clear, and gmem<->mem) */
105   fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
106
107   fd2_query_context_init(pctx);
108
109   return pctx;
110}
111