188 lines
5.6 KiB
C
188 lines
5.6 KiB
C
/*
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* Copyright © 2014-2017 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/**
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* @file v3d_formats.c
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*
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* Contains the table and accessors for V3D texture and render target format
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* support.
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*
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* The hardware has limited support for texture formats, and extremely limited
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* support for render target formats. As a result, we emulate other formats
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* in our shader code, and this stores the table for doing so.
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*/
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#include "util/macros.h"
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#include "v3d_context.h"
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#include "v3d_format_table.h"
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/* The format internal types are the same across V3D versions */
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#define V3D_VERSION 33
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#include "broadcom/cle/v3dx_pack.h"
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static const struct v3d_format *
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get_format(const struct v3d_device_info *devinfo, enum pipe_format f)
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{
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if (devinfo->ver >= 41)
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return v3d41_get_format_desc(f);
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else
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return v3d33_get_format_desc(f);
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}
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bool
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v3d_rt_format_supported(const struct v3d_device_info *devinfo,
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enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return false;
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return vf->rt_type != V3D_OUTPUT_IMAGE_FORMAT_NO;
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}
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uint8_t
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v3d_get_rt_format(const struct v3d_device_info *devinfo, enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return 0;
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return vf->rt_type;
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}
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bool
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v3d_tex_format_supported(const struct v3d_device_info *devinfo,
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enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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return vf != NULL;
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}
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uint8_t
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v3d_get_tex_format(const struct v3d_device_info *devinfo, enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return 0;
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return vf->tex_type;
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}
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uint8_t
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v3d_get_tex_return_size(const struct v3d_device_info *devinfo,
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enum pipe_format f, enum pipe_tex_compare compare)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return 0;
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if (unlikely(V3D_DEBUG & V3D_DEBUG_TMU_16BIT))
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return 16;
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if (unlikely(V3D_DEBUG & V3D_DEBUG_TMU_32BIT))
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return 32;
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if (compare == PIPE_TEX_COMPARE_R_TO_TEXTURE)
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return 16;
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return vf->return_size;
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}
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uint8_t
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v3d_get_tex_return_channels(const struct v3d_device_info *devinfo,
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enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return 0;
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return vf->return_channels;
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}
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const uint8_t *
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v3d_get_format_swizzle(const struct v3d_device_info *devinfo, enum pipe_format f)
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{
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const struct v3d_format *vf = get_format(devinfo, f);
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static const uint8_t fallback[] = {0, 1, 2, 3};
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if (!vf)
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return fallback;
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return vf->swizzle;
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}
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void
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v3d_get_internal_type_bpp_for_output_format(const struct v3d_device_info *devinfo,
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uint32_t format,
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uint32_t *type,
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uint32_t *bpp)
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{
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if (devinfo->ver >= 41) {
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return v3d41_get_internal_type_bpp_for_output_format(format,
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type, bpp);
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} else {
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return v3d33_get_internal_type_bpp_for_output_format(format,
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type, bpp);
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}
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}
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bool
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v3d_tfu_supports_tex_format(const struct v3d_device_info *devinfo,
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uint32_t tex_format,
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bool for_mipmap)
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{
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if (devinfo->ver >= 41) {
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return v3d41_tfu_supports_tex_format(tex_format, for_mipmap);
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} else {
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return v3d33_tfu_supports_tex_format(tex_format, for_mipmap);
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}
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}
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bool
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v3d_format_supports_tlb_msaa_resolve(const struct v3d_device_info *devinfo,
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enum pipe_format f)
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{
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uint32_t internal_type;
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uint32_t internal_bpp;
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const struct v3d_format *vf = get_format(devinfo, f);
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if (!vf)
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return false;
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v3d_get_internal_type_bpp_for_output_format(devinfo,
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vf->rt_type,
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&internal_type,
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&internal_bpp);
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return internal_type == V3D_INTERNAL_TYPE_8 ||
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internal_type == V3D_INTERNAL_TYPE_16F;
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}
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