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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
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/*
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 * Copyright (C) 2013 Rob Clark
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * SOFTWARE.
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 *
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 * Authors:
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 *    Rob Clark
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 */
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#include "fd2_context.h"
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#include "fd2_blend.h"
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#include "fd2_draw.h"
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#include "fd2_emit.h"
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#include "fd2_gmem.h"
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#include "fd2_program.h"
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#include "fd2_rasterizer.h"
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#include "fd2_texture.h"
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#include "fd2_zsa.h"
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static void
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fd2_context_destroy(struct pipe_context *pctx)
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{
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	fd2_prog_fini(pctx);
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	fd_context_destroy(pctx);
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}
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static struct pipe_resource *
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create_solid_vertexbuf(struct pipe_context *pctx)
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{
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	static const float init_shader_const[] = {
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			/* for clear/gmem2mem: */
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			-1.000000, +1.000000, +1.000000, +1.100000,
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			+1.000000, +1.000000, -1.000000, -1.100000,
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			+1.000000, +1.100000, -1.100000, +1.000000,
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			/* for mem2gmem: (vertices) */
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			-1.000000, +1.000000, +1.000000, +1.000000,
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			+1.000000, +1.000000, -1.000000, -1.000000,
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			+1.000000, +1.000000, -1.000000, +1.000000,
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			/* for mem2gmem: (tex coords) */
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			+0.000000, +0.000000, +1.000000, +0.000000,
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			+0.000000, +1.000000, +1.000000, +1.000000,
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	};
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	struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
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			PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
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	pipe_buffer_write(pctx, prsc, 0,
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			sizeof(init_shader_const), init_shader_const);
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	return prsc;
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}
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struct pipe_context *
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fd2_context_create(struct pipe_screen *pscreen, void *priv)
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{
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	struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
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	struct pipe_context *pctx;
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	if (!fd2_ctx)
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		return NULL;
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	pctx = &fd2_ctx->base.base;
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	pctx->destroy = fd2_context_destroy;
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	pctx->create_blend_state = fd2_blend_state_create;
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	pctx->create_rasterizer_state = fd2_rasterizer_state_create;
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	pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
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	fd2_draw_init(pctx);
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	fd2_gmem_init(pctx);
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	fd2_texture_init(pctx);
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	fd2_prog_init(pctx);
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	pctx = fd_context_init(&fd2_ctx->base, pscreen, priv);
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	if (!pctx)
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		return NULL;
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	/* construct vertex state used for solid ops (clear, and gmem<->mem) */
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	fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
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	fd2_emit_setup(&fd2_ctx->base);
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	return pctx;
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}