freedreno: prepare for a3xx

[mesa.git] / src / gallium / drivers / freedreno / a2xx / fd2_context.c

diff --git a/src/gallium/drivers/freedreno/a2xx/fd2_context.c b/src/gallium/drivers/freedreno/a2xx/fd2_context.c
new file mode 100644 (file)
index 0000000..a319275
--- /dev/null
+++ b/src/gallium/drivers/freedreno/a2xx/fd2_context.c
@@ -0,0 +1,101 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Rob Clark <robclark@freedesktop.org>
+ */
+
+
+#include "fd2_context.h"
+#include "fd2_blend.h"
+#include "fd2_draw.h"
+#include "fd2_emit.h"
+#include "fd2_gmem.h"
+#include "fd2_program.h"
+#include "fd2_rasterizer.h"
+#include "fd2_texture.h"
+#include "fd2_zsa.h"
+
+static void
+fd2_context_destroy(struct pipe_context *pctx)
+{
+       fd2_prog_fini(pctx);
+       fd_context_destroy(pctx);
+}
+
+static struct pipe_resource *
+create_solid_vertexbuf(struct pipe_context *pctx)
+{
+       static const float init_shader_const[] = {
+                       /* for clear/gmem2mem: */
+                       -1.000000, +1.000000, +1.000000, +1.100000,
+                       +1.000000, +1.000000, -1.000000, -1.100000,
+                       +1.000000, +1.100000, -1.100000, +1.000000,
+                       /* for mem2gmem: (vertices) */
+                       -1.000000, +1.000000, +1.000000, +1.000000,
+                       +1.000000, +1.000000, -1.000000, -1.000000,
+                       +1.000000, +1.000000, -1.000000, +1.000000,
+                       /* for mem2gmem: (tex coords) */
+                       +0.000000, +0.000000, +1.000000, +0.000000,
+                       +0.000000, +1.000000, +1.000000, +1.000000,
+       };
+       struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
+                       PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
+       pipe_buffer_write(pctx, prsc, 0,
+                       sizeof(init_shader_const), init_shader_const);
+       return prsc;
+}
+
+struct pipe_context *
+fd2_context_create(struct pipe_screen *pscreen, void *priv)
+{
+       struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
+       struct pipe_context *pctx;
+
+       if (!fd2_ctx)
+               return NULL;
+
+       pctx = &fd2_ctx->base.base;
+
+       pctx->destroy = fd2_context_destroy;
+       pctx->create_blend_state = fd2_blend_state_create;
+       pctx->create_rasterizer_state = fd2_rasterizer_state_create;
+       pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
+
+       fd2_draw_init(pctx);
+       fd2_gmem_init(pctx);
+       fd2_texture_init(pctx);
+       fd2_prog_init(pctx);
+
+       pctx = fd_context_init(&fd2_ctx->base, pscreen, priv);
+       if (!pctx)
+               return NULL;
+
+       /* construct vertex state used for solid ops (clear, and gmem<->mem) */
+       fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
+
+       fd2_emit_setup(&fd2_ctx->base);
+
+       return pctx;
+}