From 1850d0a1cbf044dc4d29b7a9ede2c634f667d853 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 19 Jun 2014 08:19:38 +0100 Subject: vc4: Initial skeleton driver import. This mostly just takes every draw call and turns it into a sequence of commands that clear the FBO and draw a single shaded triangle to it, regardless of the actual input vertices or shaders. I copied the initial driver skeleton mostly from freedreno, and I've preserved Rob Clark's copyright for those. I also based my initial hardcoded shaders and command lists on Scott Mansell (phire)'s "hackdriver" project, though the bit patterns of the shaders emitted end up being different. v2: Rebase on gallium megadrivers changes. v3: Rebase on PIPE_SHADER_CAP_MAX_CONSTS change. v4: Rely on simpenrose actually being installed when building for simulation. v5: Add more header duplicate-include guards. v6: Apply Emil's review (protection against vc4 sim and ilo at the same time, and dropping the dricommon drm bits) and fix a copyright header (thanks, Roland) --- src/gallium/drivers/vc4/vc4_emit.c | 59 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/gallium/drivers/vc4/vc4_emit.c (limited to 'src/gallium/drivers/vc4/vc4_emit.c') diff --git a/src/gallium/drivers/vc4/vc4_emit.c b/src/gallium/drivers/vc4/vc4_emit.c new file mode 100644 index 00000000000..9c41505288c --- /dev/null +++ b/src/gallium/drivers/vc4/vc4_emit.c @@ -0,0 +1,59 @@ +/* + * Copyright © 2014 Broadcom + * + * 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. + */ + +#include "vc4_context.h" + +void +vc4_emit_state(struct pipe_context *pctx) +{ + struct vc4_context *vc4 = vc4_context(pctx); + + if (vc4->dirty & VC4_DIRTY_SCISSOR) { + cl_u8(&vc4->bcl, VC4_PACKET_CLIP_WINDOW); + cl_u16(&vc4->bcl, vc4->scissor.minx); + cl_u16(&vc4->bcl, vc4->scissor.miny); + cl_u16(&vc4->bcl, vc4->scissor.maxx - vc4->scissor.minx); + cl_u16(&vc4->bcl, vc4->scissor.maxy - vc4->scissor.miny); + } + + if (vc4->dirty & VC4_DIRTY_RASTERIZER) { + cl_u8(&vc4->bcl, VC4_PACKET_CONFIGURATION_BITS); + cl_u8(&vc4->bcl, vc4->rasterizer->config_bits[0]); + cl_u8(&vc4->bcl, vc4->rasterizer->config_bits[1]); + cl_u8(&vc4->bcl, vc4->rasterizer->config_bits[2]); + } + + if (vc4->dirty & VC4_DIRTY_VIEWPORT) { + cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_XY_SCALING); + cl_f(&vc4->bcl, vc4->viewport.scale[0] * 16.0f); + cl_f(&vc4->bcl, vc4->viewport.scale[1] * 16.0f); + + cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_Z_SCALING); + cl_f(&vc4->bcl, vc4->viewport.translate[2]); + cl_f(&vc4->bcl, vc4->viewport.scale[2]); + + cl_u8(&vc4->bcl, VC4_PACKET_VIEWPORT_OFFSET); + cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[0]); + cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[1]); + } +} -- cgit v1.2.3