1 /*
2 * Copyright © 2013 Rob Clark <[email protected]>
3 * SPDX-License-Identifier: MIT
4 *
5 * Authors:
6 * Rob Clark <[email protected]>
7 */
8
9 #include "fd2_context.h"
10 #include "fd2_blend.h"
11 #include "fd2_draw.h"
12 #include "fd2_emit.h"
13 #include "fd2_gmem.h"
14 #include "fd2_program.h"
15 #include "fd2_query.h"
16 #include "fd2_rasterizer.h"
17 #include "fd2_texture.h"
18 #include "fd2_zsa.h"
19
20 static void
fd2_context_destroy(struct pipe_context * pctx)21 fd2_context_destroy(struct pipe_context *pctx) in_dt
22 {
23 fd_context_destroy(pctx);
24 free(pctx);
25 }
26
27 static struct pipe_resource *
create_solid_vertexbuf(struct pipe_context * pctx)28 create_solid_vertexbuf(struct pipe_context *pctx)
29 {
30 /* clang-format off */
31 static const float init_shader_const[] = {
32 /* for clear/gmem2mem/mem2gmem (vertices): */
33 -1.000000f, +1.000000f, +1.000000f,
34 +1.000000f, +1.000000f, +1.000000f,
35 -1.000000f, -1.000000f, +1.000000f,
36 /* for mem2gmem: (tex coords) */
37 +0.000000f, +0.000000f,
38 +1.000000f, +0.000000f,
39 +0.000000f, +1.000000f,
40 /* SCREEN_SCISSOR_BR value (must be at 60 byte offset in page) */
41 0.0f,
42 /* zero indices dummy draw workaround (3 16-bit zeros) */
43 0.0f, 0.0f,
44 };
45 /* clang-format on */
46
47 struct pipe_resource *prsc =
48 pipe_buffer_create(pctx->screen, PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE,
49 sizeof(init_shader_const));
50 pipe_buffer_write(pctx, prsc, 0, sizeof(init_shader_const),
51 init_shader_const);
52 return prsc;
53 }
54
55 struct pipe_context *
fd2_context_create(struct pipe_screen * pscreen,void * priv,unsigned flags)56 fd2_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
57 {
58 struct fd_screen *screen = fd_screen(pscreen);
59 struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
60 struct pipe_context *pctx;
61
62 if (!fd2_ctx)
63 return NULL;
64
65 pctx = &fd2_ctx->base.base;
66 pctx->screen = pscreen;
67
68 fd2_ctx->base.flags = flags;
69 fd2_ctx->base.dev = fd_device_ref(screen->dev);
70 fd2_ctx->base.screen = fd_screen(pscreen);
71
72 pctx->destroy = fd2_context_destroy;
73 pctx->create_blend_state = fd2_blend_state_create;
74 pctx->create_rasterizer_state = fd2_rasterizer_state_create;
75 pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
76
77 fd2_draw_init(pctx);
78 fd2_gmem_init(pctx);
79 fd2_texture_init(pctx);
80 fd2_prog_init(pctx);
81 fd2_emit_init(pctx);
82
83 pctx = fd_context_init(&fd2_ctx->base, pscreen, priv, flags);
84 if (!pctx)
85 return NULL;
86
87 /* construct vertex state used for solid ops (clear, and gmem<->mem) */
88 fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
89
90 fd2_query_context_init(pctx);
91
92 return pctx;
93 }
94