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
38 static void
fd2_context_destroy(struct pipe_context * pctx)39 fd2_context_destroy(struct pipe_context *pctx) in_dt
40 {
41 fd_context_destroy(pctx);
42 free(pctx);
43 }
44
45 static struct pipe_resource *
create_solid_vertexbuf(struct pipe_context * pctx)46 create_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 -1.000000f, +1.000000f, +1.000000f,
52 +1.000000f, +1.000000f, +1.000000f,
53 -1.000000f, -1.000000f, +1.000000f,
54 /* for mem2gmem: (tex coords) */
55 +0.000000f, +0.000000f,
56 +1.000000f, +0.000000f,
57 +0.000000f, +1.000000f,
58 /* SCREEN_SCISSOR_BR value (must be at 60 byte offset in page) */
59 0.0f,
60 /* zero indices dummy draw workaround (3 16-bit zeros) */
61 0.0f, 0.0f,
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
73 struct pipe_context *
fd2_context_create(struct pipe_screen * pscreen,void * priv,unsigned flags)74 fd2_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.flags = flags;
87 fd2_ctx->base.dev = fd_device_ref(screen->dev);
88 fd2_ctx->base.screen = fd_screen(pscreen);
89
90 pctx->destroy = fd2_context_destroy;
91 pctx->create_blend_state = fd2_blend_state_create;
92 pctx->create_rasterizer_state = fd2_rasterizer_state_create;
93 pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
94
95 fd2_draw_init(pctx);
96 fd2_gmem_init(pctx);
97 fd2_texture_init(pctx);
98 fd2_prog_init(pctx);
99 fd2_emit_init(pctx);
100
101 pctx = fd_context_init(&fd2_ctx->base, pscreen, priv, flags);
102 if (!pctx)
103 return NULL;
104
105 /* construct vertex state used for solid ops (clear, and gmem<->mem) */
106 fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
107
108 fd2_query_context_init(pctx);
109
110 return pctx;
111 }
112