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
28#include "fd2_context.h"
29#include "fd2_blend.h"
30#include "fd2_draw.h"
31#include "fd2_emit.h"
32#include "fd2_gmem.h"
33#include "fd2_program.h"
34#include "fd2_query.h"
35#include "fd2_rasterizer.h"
36#include "fd2_texture.h"
37#include "fd2_zsa.h"
38
39static void
40fd2_context_destroy(struct pipe_context *pctx)
41{
42	fd_context_destroy(pctx);
43	free(pctx);
44}
45
46static struct pipe_resource *
47create_solid_vertexbuf(struct pipe_context *pctx)
48{
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	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
70static const uint8_t a22x_primtypes[PIPE_PRIM_MAX] = {
71		[PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_PSIZE,
72		[PIPE_PRIM_LINES]          = DI_PT_LINELIST,
73		[PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
74		[PIPE_PRIM_LINE_LOOP]      = DI_PT_LINELOOP,
75		[PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
76		[PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
77		[PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
78};
79
80static const uint8_t a20x_primtypes[PIPE_PRIM_MAX] = {
81		[PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_PSIZE,
82		[PIPE_PRIM_LINES]          = DI_PT_LINELIST,
83		[PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
84		[PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
85		[PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
86		[PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
87};
88
89struct pipe_context *
90fd2_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
91{
92	struct fd_screen *screen = fd_screen(pscreen);
93	struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
94	struct pipe_context *pctx;
95
96	if (!fd2_ctx)
97		return NULL;
98
99	pctx = &fd2_ctx->base.base;
100	pctx->screen = pscreen;
101
102	fd2_ctx->base.dev = fd_device_ref(screen->dev);
103	fd2_ctx->base.screen = fd_screen(pscreen);
104
105	pctx->destroy = fd2_context_destroy;
106	pctx->create_blend_state = fd2_blend_state_create;
107	pctx->create_rasterizer_state = fd2_rasterizer_state_create;
108	pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
109
110	fd2_draw_init(pctx);
111	fd2_gmem_init(pctx);
112	fd2_texture_init(pctx);
113	fd2_prog_init(pctx);
114	fd2_emit_init(pctx);
115
116	pctx = fd_context_init(&fd2_ctx->base, pscreen,
117			(screen->gpu_id >= 220) ? a22x_primtypes : a20x_primtypes,
118			priv, flags);
119	if (!pctx)
120		return NULL;
121
122	/* construct vertex state used for solid ops (clear, and gmem<->mem) */
123	fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
124
125	fd2_query_context_init(pctx);
126
127	return pctx;
128}
129