/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ /* * Copyright (C) 2012-2013 Rob Clark * * 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 */ #include "pipe/p_state.h" #include "util/u_blend.h" #include "util/u_string.h" #include "util/u_memory.h" #include "fd2_blend.h" #include "fd2_context.h" #include "fd2_util.h" static enum a2xx_rb_blend_opcode blend_func(unsigned func) { switch (func) { case PIPE_BLEND_ADD: return BLEND2_DST_PLUS_SRC; case PIPE_BLEND_MIN: return BLEND2_MIN_DST_SRC; case PIPE_BLEND_MAX: return BLEND2_MAX_DST_SRC; case PIPE_BLEND_SUBTRACT: return BLEND2_SRC_MINUS_DST; case PIPE_BLEND_REVERSE_SUBTRACT: return BLEND2_DST_MINUS_SRC; default: DBG("invalid blend func: %x", func); return 0; } } void * fd2_blend_state_create(struct pipe_context *pctx, const struct pipe_blend_state *cso) { const struct pipe_rt_blend_state *rt = &cso->rt[0]; struct fd2_blend_stateobj *so; unsigned rop = PIPE_LOGICOP_COPY; if (cso->logicop_enable) rop = cso->logicop_func; /* 1:1 mapping with hw */ if (cso->independent_blend_enable) { DBG("Unsupported! independent blend state"); return NULL; } so = CALLOC_STRUCT(fd2_blend_stateobj); if (!so) return NULL; so->base = *cso; so->rb_colorcontrol = A2XX_RB_COLORCONTROL_ROP_CODE(rop); so->rb_blendcontrol_rgb = A2XX_RB_BLEND_CONTROL_COLOR_SRCBLEND(fd_blend_factor(rt->rgb_src_factor)) | A2XX_RB_BLEND_CONTROL_COLOR_COMB_FCN(blend_func(rt->rgb_func)) | A2XX_RB_BLEND_CONTROL_COLOR_DESTBLEND(fd_blend_factor(rt->rgb_dst_factor)); so->rb_blendcontrol_alpha = A2XX_RB_BLEND_CONTROL_ALPHA_SRCBLEND(fd_blend_factor(rt->alpha_src_factor)) | A2XX_RB_BLEND_CONTROL_ALPHA_COMB_FCN(blend_func(rt->alpha_func)) | A2XX_RB_BLEND_CONTROL_ALPHA_DESTBLEND(fd_blend_factor(rt->alpha_dst_factor)); so->rb_blendcontrol_no_alpha_rgb = A2XX_RB_BLEND_CONTROL_COLOR_SRCBLEND(fd_blend_factor(util_blend_dst_alpha_to_one(rt->rgb_src_factor))) | A2XX_RB_BLEND_CONTROL_COLOR_COMB_FCN(blend_func(rt->rgb_func)) | A2XX_RB_BLEND_CONTROL_COLOR_DESTBLEND(fd_blend_factor(util_blend_dst_alpha_to_one(rt->rgb_dst_factor))); if (rt->colormask & PIPE_MASK_R) so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_RED; if (rt->colormask & PIPE_MASK_G) so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_GREEN; if (rt->colormask & PIPE_MASK_B) so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_BLUE; if (rt->colormask & PIPE_MASK_A) so->rb_colormask |= A2XX_RB_COLOR_MASK_WRITE_ALPHA; if (!rt->blend_enable) so->rb_colorcontrol |= A2XX_RB_COLORCONTROL_BLEND_DISABLE; if (cso->dither) so->rb_colorcontrol |= A2XX_RB_COLORCONTROL_DITHER_MODE(DITHER_ALWAYS); return so; }