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/*
* Copyright (c) 2011-2013 Luc Verhaegen <libv@skynet.be>
* Copyright (c) 2018-2019 Lima Project
*
* 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, sub license,
* 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 NON-INFRINGEMENT. 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.
*
*/
#include <stdint.h>
#include <stdlib.h>
#include "util/format/u_format.h"
#include <util/macros.h>
#include "lima_format.h"
#define LIMA_TEXEL_FORMAT_L8 0x09
#define LIMA_TEXEL_FORMAT_A8 0x0a
#define LIMA_TEXEL_FORMAT_I8 0x0b
#define LIMA_TEXEL_FORMAT_BGR_565 0x0e
#define LIMA_TEXEL_FORMAT_BGRA_5551 0x0f
#define LIMA_TEXEL_FORMAT_BGRA_4444 0x10
#define LIMA_TEXEL_FORMAT_L8A8 0x11
#define LIMA_TEXEL_FORMAT_L16 0x12
#define LIMA_TEXEL_FORMAT_A16 0x13
#define LIMA_TEXEL_FORMAT_I16 0x14
#define LIMA_TEXEL_FORMAT_RGB_888 0x15
#define LIMA_TEXEL_FORMAT_RGBA_8888 0x16
#define LIMA_TEXEL_FORMAT_RGBX_8888 0x17
#define LIMA_TEXEL_FORMAT_ETC1_RGB8 0x20
#define LIMA_TEXEL_FORMAT_Z24X8 0x2c
/* This format is only used for depth/stencil reload */
#define LIMA_TEXEL_FORMAT_Z24S8_RLD 0x32
#define LIMA_PIXEL_FORMAT_B5G6R5 0x00
#define LIMA_PIXEL_FORMAT_B5G5R5A1 0x01
#define LIMA_PIXEL_FORMAT_B4G4R4A4 0x02
#define LIMA_PIXEL_FORMAT_B8G8R8A8 0x03
#define LIMA_PIXEL_FORMAT_B8 0x04
#define LIMA_PIXEL_FORMAT_G8B8 0x05
#define LIMA_PIXEL_FORMAT_Z16 0x0e
#define LIMA_PIXEL_FORMAT_Z24S8 0x0f
struct lima_format {
bool present;
int format;
bool swap_r_b;
union {
uint32_t channel_layout;
uint8_t swizzle[4];
};
};
#define SWIZ(x,y,z,w) { \
PIPE_SWIZZLE_##x, \
PIPE_SWIZZLE_##y, \
PIPE_SWIZZLE_##z, \
PIPE_SWIZZLE_##w \
}
#define LIMA_TEXEL_FORMAT(pipe, tex, swap, swiz) \
[PIPE_FORMAT_##pipe] = { \
.present = true, .format = LIMA_TEXEL_FORMAT_##tex, \
.swap_r_b = swap, .swizzle = swiz \
}
#define LIMA_PIXEL_FORMAT(pipe, pix, swap, ch_layout) \
[PIPE_FORMAT_##pipe] = { \
.present = true, .format = LIMA_PIXEL_FORMAT_##pix, \
.swap_r_b = swap, .channel_layout = ch_layout \
}
static const struct lima_format lima_texel_formats[] = {
LIMA_TEXEL_FORMAT(R8G8B8A8_UNORM, RGBA_8888, true, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B8G8R8A8_UNORM, RGBA_8888, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(R8G8B8A8_SRGB, RGBA_8888, true, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B8G8R8A8_SRGB, RGBA_8888, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(R8G8B8X8_UNORM, RGBX_8888, true, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B8G8R8X8_UNORM, RGBX_8888, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B5G6R5_UNORM, BGR_565, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B5G5R5A1_UNORM, BGRA_5551, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(B4G4R4A4_UNORM, BGRA_4444, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(Z24_UNORM_S8_UINT, Z24X8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(Z24X8_UNORM, Z24X8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(L16_UNORM, L16, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(L8_UNORM, L8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(A16_UNORM, A16, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(A8_UNORM, A8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(I16_UNORM, I16, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(I8_UNORM, I8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(L8A8_UNORM, L8A8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(ETC1_RGB8, ETC1_RGB8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(R8_UNORM, L8, false, SWIZ(X, 0, 0, 1)),
LIMA_TEXEL_FORMAT(R8G8_UNORM, L8A8, false, SWIZ(X, W, 0, 1)),
};
static const struct lima_format lima_pixel_formats[] = {
LIMA_PIXEL_FORMAT(R8G8B8A8_UNORM, B8G8R8A8, true, 0x8888),
LIMA_PIXEL_FORMAT(B8G8R8A8_UNORM, B8G8R8A8, false, 0x8888),
LIMA_PIXEL_FORMAT(R8G8B8A8_SRGB, B8G8R8A8, true, 0x8888),
LIMA_PIXEL_FORMAT(B8G8R8A8_SRGB, B8G8R8A8, false, 0x8888),
LIMA_PIXEL_FORMAT(R8G8B8X8_UNORM, B8G8R8A8, true, 0x8888),
LIMA_PIXEL_FORMAT(B8G8R8X8_UNORM, B8G8R8A8, false, 0x8888),
LIMA_PIXEL_FORMAT(B5G6R5_UNORM, B5G6R5, false, 0x8565),
LIMA_PIXEL_FORMAT(B5G5R5A1_UNORM, B5G5R5A1, false, 0x8565),
LIMA_PIXEL_FORMAT(B4G4R4A4_UNORM, B4G4R4A4, false, 0x8444),
/* FIXME: reload doesn't work for these formats for some reason */
//LIMA_PIXEL_FORMAT(R8_UNORM, B8, true, 0x8888),
//LIMA_PIXEL_FORMAT(R8G8_UNORM, G8B8, true, 0x8888),
LIMA_PIXEL_FORMAT(Z24_UNORM_S8_UINT, Z24S8, false, 0x0000),
LIMA_PIXEL_FORMAT(Z24X8_UNORM, Z24S8, false, 0x0000),
};
static const struct lima_format *
get_texel_format(enum pipe_format f)
{
if (f >= ARRAY_SIZE(lima_texel_formats) ||
!lima_texel_formats[f].present)
return NULL;
return lima_texel_formats + f;
}
static const struct lima_format *
get_pixel_format(enum pipe_format f)
{
if (f >= ARRAY_SIZE(lima_pixel_formats) ||
!lima_pixel_formats[f].present)
return NULL;
return lima_pixel_formats + f;
}
bool
lima_format_texel_supported(enum pipe_format f)
{
const struct lima_format *lf = get_texel_format(f);
if (!lf)
return false;
return true;
}
bool
lima_format_pixel_supported(enum pipe_format f)
{
const struct lima_format *lf = get_pixel_format(f);
if (!lf)
return false;
return true;
}
int
lima_format_get_texel(enum pipe_format f)
{
return lima_texel_formats[f].format;
}
int
lima_format_get_texel_reload(enum pipe_format f)
{
switch (f) {
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
case PIPE_FORMAT_Z24X8_UNORM:
return LIMA_TEXEL_FORMAT_Z24S8_RLD;
default:
return lima_format_get_texel(f);
}
}
int
lima_format_get_pixel(enum pipe_format f)
{
return lima_pixel_formats[f].format;
}
bool
lima_format_get_texel_swap_rb(enum pipe_format f)
{
return lima_texel_formats[f].swap_r_b;
}
bool
lima_format_get_pixel_swap_rb(enum pipe_format f)
{
return lima_pixel_formats[f].swap_r_b;
}
const uint8_t *
lima_format_get_texel_swizzle(enum pipe_format f)
{
return lima_texel_formats[f].swizzle;
}
uint32_t
lima_format_get_channel_layout(enum pipe_format f)
{
return lima_pixel_formats[f].channel_layout;
}
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