diff options
Diffstat (limited to 'src/gallium/drivers/freedreno/freedreno_rasterizer.c')
| -rw-r--r-- | src/gallium/drivers/freedreno/freedreno_rasterizer.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/freedreno_rasterizer.c b/src/gallium/drivers/freedreno/freedreno_rasterizer.c new file mode 100644 index 00000000000..2d69133830a --- /dev/null +++ b/src/gallium/drivers/freedreno/freedreno_rasterizer.c @@ -0,0 +1,151 @@ +/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ + +/* + * Copyright (C) 2012 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 "pipe/p_state.h" +#include "util/u_string.h" +#include "util/u_memory.h" + +#include "freedreno_rasterizer.h" +#include "freedreno_context.h" +#include "freedreno_util.h" + + +static enum pa_su_sc_draw +polygon_mode(unsigned mode) +{ + switch (mode) { + case PIPE_POLYGON_MODE_POINT: + return DRAW_POINTS; + case PIPE_POLYGON_MODE_LINE: + return DRAW_LINES; + case PIPE_POLYGON_MODE_FILL: + return DRAW_TRIANGLES; + default: + DBG("invalid polygon mode: %u", mode); + return 0; + } +} + +static void * +fd_rasterizer_state_create(struct pipe_context *pctx, + const struct pipe_rasterizer_state *cso) +{ + struct fd_rasterizer_stateobj *so; + float psize_min, psize_max; + + so = CALLOC_STRUCT(fd_rasterizer_stateobj); + if (!so) + return NULL; + + if (cso->point_size_per_vertex) { + psize_min = util_get_min_point_size(cso); + psize_max = 8192; + } else { + /* Force the point size to be as if the vertex output was disabled. */ + psize_min = cso->point_size; + psize_max = cso->point_size; + } + + so->base = *cso; + + so->pa_sc_line_stipple = cso->line_stipple_enable ? + PA_SC_LINE_STIPPLE_LINE_PATTERN(cso->line_stipple_pattern) | + PA_SC_LINE_STIPPLE_REPEAT_COUNT(cso->line_stipple_factor) : 0; + + so->pa_cl_clip_cntl = 0; // TODO + + so->pa_su_vtx_cntl = + PA_SU_VTX_CNTL_PIX_CENTER(cso->gl_rasterization_rules ? PIXCENTER_OGL : PIXCENTER_D3D) | + PA_SU_VTX_CNTL_QUANT_MODE(ONE_SIXTEENTH); + + so->pa_su_point_size = + PA_SU_POINT_SIZE_HEIGHT(cso->point_size/2) | + PA_SU_POINT_SIZE_WIDTH(cso->point_size/2); + + so->pa_su_point_minmax = + PA_SU_POINT_MINMAX_MIN_SIZE(psize_min/2) | + PA_SU_POINT_MINMAX_MAX_SIZE(psize_max/2); + + so->pa_su_line_cntl = + PA_SU_LINE_CNTL_WIDTH(cso->line_width/2); + + so->pa_su_sc_mode_cntl = + PA_SU_SC_MODE_CNTL_VTX_WINDOW_OFFSET_ENABLE | + PA_SU_SC_MODE_CNTL_POLYMODE_FRONT_PTYPE(polygon_mode(cso->fill_front)) | + PA_SU_SC_MODE_CNTL_POLYMODE_BACK_PTYPE(polygon_mode(cso->fill_back)); + + if (cso->cull_face & PIPE_FACE_FRONT) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_CULL_FRONT; + if (cso->cull_face & PIPE_FACE_BACK) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_CULL_BACK; + if (!cso->flatshade_first) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_PROVOKING_VTX_LAST; + if (!cso->front_ccw) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_FACE; + if (cso->line_stipple_enable) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_LINE_STIPPLE_ENABLE; + if (cso->multisample) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_MSAA_ENABLE; + + if (cso->fill_front != PIPE_POLYGON_MODE_FILL || + cso->fill_back != PIPE_POLYGON_MODE_FILL) + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DUALMODE); + else + so->pa_su_sc_mode_cntl |= PA_SU_SC_MODE_CNTL_POLYMODE(POLY_DISABLED); + + if (cso->offset_tri) + so->pa_su_sc_mode_cntl |= + PA_SU_SC_MODE_CNTL_POLY_OFFSET_FRONT_ENABLE | + PA_SU_SC_MODE_CNTL_POLY_OFFSET_BACK_ENABLE | + PA_SU_SC_MODE_CNTL_POLY_OFFSET_PARA_ENABLE; + + return so; +} + +static void +fd_rasterizer_state_bind(struct pipe_context *pctx, void *hwcso) +{ + struct fd_context *ctx = fd_context(pctx); + ctx->rasterizer = hwcso; + ctx->dirty |= FD_DIRTY_RASTERIZER; +} + +static void +fd_rasterizer_state_delete(struct pipe_context *pctx, void *hwcso) +{ + FREE(hwcso); +} + +void +fd_rasterizer_init(struct pipe_context *pctx) +{ + pctx->create_rasterizer_state = fd_rasterizer_state_create; + pctx->bind_rasterizer_state = fd_rasterizer_state_bind; + pctx->delete_rasterizer_state = fd_rasterizer_state_delete; +} |