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6a9364f4bc
`pvr_get_hw_clear_color()` now packs formats based on the accum format which is how the hw deals with the formats internally and might not line up exactly with the vk format representation. E.g. R5G6B5_UNORM_PACK16 uses the U8 accum format so the USC will internally use 3 bytes (1 per component) to deal with it instead of 2 bytes which the vk format specifies. On USC EMITPIX, the PBE will pack the results to 2 bytes using PACKMODE_R5G6B5 resulting in the final value being in the vk format representation. Signed-off-by: Karmjit Mahil <Karmjit.Mahil@imgtec.com> Reviewed-by: Frank Binns <frank.binns@imgtec.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19218>
71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
/*
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* Copyright © 2022 Imagination Technologies Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* 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 THE
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* 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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef PVR_FORMATS_H
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#define PVR_FORMATS_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <vulkan/vulkan.h>
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/* This is based on VkClearColorValue which is an array of RGBA, and on the
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* output register usage for the biggest 32 bit 4 component formats which use up
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* all 4 output registers.
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* So this can be used for both unpacked RGBA value and to represent values
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* packed according to the hardware (the accum format).
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*/
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#define PVR_CLEAR_COLOR_ARRAY_SIZE 4
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enum pvr_pbe_accum_format {
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PVR_PBE_ACCUM_FORMAT_INVALID = 0, /* Explicitly treat 0 as invalid. */
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PVR_PBE_ACCUM_FORMAT_U8,
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PVR_PBE_ACCUM_FORMAT_S8,
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PVR_PBE_ACCUM_FORMAT_U16,
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PVR_PBE_ACCUM_FORMAT_S16,
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PVR_PBE_ACCUM_FORMAT_F16,
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PVR_PBE_ACCUM_FORMAT_F32,
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PVR_PBE_ACCUM_FORMAT_UINT8,
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PVR_PBE_ACCUM_FORMAT_UINT16,
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PVR_PBE_ACCUM_FORMAT_UINT32,
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PVR_PBE_ACCUM_FORMAT_SINT8,
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PVR_PBE_ACCUM_FORMAT_SINT16,
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PVR_PBE_ACCUM_FORMAT_SINT32,
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/* Formats with medp shader output precision. */
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PVR_PBE_ACCUM_FORMAT_UINT32_MEDP,
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PVR_PBE_ACCUM_FORMAT_SINT32_MEDP,
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PVR_PBE_ACCUM_FORMAT_U1010102,
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PVR_PBE_ACCUM_FORMAT_U24,
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};
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const uint8_t *pvr_get_format_swizzle(VkFormat vk_format);
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uint32_t pvr_get_tex_format(VkFormat vk_format);
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uint32_t pvr_get_pbe_packmode(VkFormat vk_format);
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uint32_t pvr_get_pbe_accum_format(VkFormat vk_format);
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uint32_t pvr_get_pbe_accum_format_size_in_bytes(VkFormat vk_format);
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bool pvr_format_is_pbe_downscalable(VkFormat vk_format);
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void pvr_get_hw_clear_color(VkFormat vk_format,
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VkClearColorValue value,
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uint32_t packed_out[static const 4]);
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#endif /* PVR_FORMATS_H */
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