diff options
Diffstat (limited to 'src/gallium/drivers/freedreno/a3xx/fd3_texture.c')
| -rw-r--r-- | src/gallium/drivers/freedreno/a3xx/fd3_texture.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_texture.c b/src/gallium/drivers/freedreno/a3xx/fd3_texture.c new file mode 100644 index 00000000000..ae08b8ac90a --- /dev/null +++ b/src/gallium/drivers/freedreno/a3xx/fd3_texture.c @@ -0,0 +1,140 @@ +/* -*- 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 "pipe/p_state.h" +#include "util/u_string.h" +#include "util/u_memory.h" +#include "util/u_inlines.h" + +#include "fd3_texture.h" +#include "fd3_util.h" + +static enum a3xx_tex_clamp +tex_clamp(unsigned wrap) +{ + /* hardware probably supports more, but we can't coax all the + * wrap/clamp modes out of the GLESv2 blob driver. + * + * TODO once we have basics working, go back and just try + * different values and see what happens + */ + switch (wrap) { + case PIPE_TEX_WRAP_REPEAT: + return A3XX_TEX_REPEAT; + case PIPE_TEX_WRAP_CLAMP: + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + return A3XX_TEX_CLAMP_TO_EDGE; + case PIPE_TEX_WRAP_MIRROR_CLAMP: + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: + case PIPE_TEX_WRAP_MIRROR_REPEAT: + return A3XX_TEX_MIRROR_REPEAT; + default: + DBG("invalid wrap: %u", wrap); + return 0; + } +} + +static enum a3xx_tex_filter +tex_filter(unsigned filter) +{ + switch (filter) { + case PIPE_TEX_FILTER_NEAREST: + return A3XX_TEX_NEAREST; + case PIPE_TEX_FILTER_LINEAR: + return A3XX_TEX_LINEAR; + default: + DBG("invalid filter: %u", filter); + return 0; + } +} + +static void * +fd3_sampler_state_create(struct pipe_context *pctx, + const struct pipe_sampler_state *cso) +{ + struct fd3_sampler_stateobj *so = CALLOC_STRUCT(fd3_sampler_stateobj); + + if (!so) + return NULL; + + so->base = *cso; + + so->texsamp0 = + A3XX_TEX_SAMP_0_XY_MAG(tex_filter(cso->mag_img_filter)) | + A3XX_TEX_SAMP_0_XY_MIN(tex_filter(cso->min_img_filter)) | + A3XX_TEX_SAMP_0_WRAP_S(tex_clamp(cso->wrap_s)) | + A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso->wrap_t)) | + A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso->wrap_r)); + so->texsamp1 = 0x00000000; /* ??? */ + + return so; +} + +static struct pipe_sampler_view * +fd3_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc, + const struct pipe_sampler_view *cso) +{ + struct fd3_pipe_sampler_view *so = CALLOC_STRUCT(fd3_pipe_sampler_view); + struct fd_resource *rsc = fd_resource(prsc); + + if (!so) + return NULL; + + so->base = *cso; + pipe_reference(NULL, &prsc->reference); + so->base.texture = prsc; + so->base.reference.count = 1; + so->base.context = pctx; + + so->tex_resource = rsc; + + so->texconst0 = + 0x40000000 | /* ??? */ + A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso->format)) | + fd3_tex_swiz(cso->format, cso->swizzle_r, cso->swizzle_g, + cso->swizzle_b, cso->swizzle_a); + so->texconst1 = + A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso->format)) | + A3XX_TEX_CONST_1_WIDTH(prsc->width0) | + A3XX_TEX_CONST_1_HEIGHT(prsc->height0); + /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */ + so->texconst2 = + A3XX_TEX_CONST_2_PITCH(rsc->pitch * rsc->cpp); + so->texconst3 = 0x00000000; /* ??? */ + + return &so->base; +} + +void +fd3_texture_init(struct pipe_context *pctx) +{ + pctx->create_sampler_state = fd3_sampler_state_create; + pctx->create_sampler_view = fd3_sampler_view_create; +} |