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/*
* 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.
*
*/
#ifndef H_LIMA_TEXTURE
#define H_LIMA_TEXTURE
#define lima_min_tex_desc_size 64
#define LIMA_TEXTURE_TYPE_2D 2
#define LIMA_TEXTURE_TYPE_CUBE 5
typedef struct __attribute__((__packed__)) {
/* Word 0 */
uint32_t format : 6;
uint32_t flag1: 1;
uint32_t swap_r_b: 1;
uint32_t unknown_0_1: 8;
uint32_t stride: 15;
uint32_t unknown_0_2: 1;
/* Word 1-3 */
uint32_t unknown_1_1: 7;
uint32_t unnorm_coords: 1;
uint32_t unknown_1_2: 1;
uint32_t texture_type: 3;
uint32_t min_lod: 8; /* Fixed point, 4.4, unsigned */
uint32_t max_lod: 8; /* Fixed point, 4.4, unsigned */
uint32_t lod_bias: 9; /* Fixed point, signed, 1.4.4 */
uint32_t unknown_2_1: 3;
uint32_t has_stride: 1;
uint32_t min_mipfilter_2: 2; /* 0x3 for linear, 0x0 for nearest */
uint32_t min_img_filter_nearest: 1;
uint32_t mag_img_filter_nearest: 1;
uint32_t wrap_s_clamp_to_edge: 1;
uint32_t wrap_s_clamp: 1;
uint32_t wrap_s_mirror_repeat: 1;
uint32_t wrap_t_clamp_to_edge: 1;
uint32_t wrap_t_clamp: 1;
uint32_t wrap_t_mirror_repeat: 1;
uint32_t unknown_2_2: 3;
uint32_t width: 13;
uint32_t height: 13;
uint32_t unknown_3_1: 1;
uint32_t unknown_3_2: 15;
/* Word 4 */
uint32_t unknown_4;
/* Word 5 */
uint32_t unknown_5;
/* Word 6-15 */
/* layout is in va[0] bit 13-14 */
/* VAs start in va[0] at bit 30, each VA is 26 bits (only MSBs are stored), stored
* linearly in memory */
union {
uint32_t va[0];
struct __attribute__((__packed__)) {
uint32_t unknown_6_1: 13;
uint32_t layout: 2;
uint32_t unknown_6_2: 9;
uint32_t unknown_6_3: 6;
#define VA_BIT_OFFSET 30
#define VA_BIT_SIZE 26
uint32_t va_0: VA_BIT_SIZE;
uint32_t va_0_1: 8;
uint32_t va_1_x[0];
} va_s;
};
} lima_tex_desc;
void lima_texture_desc_set_res(struct lima_context *ctx, lima_tex_desc *desc,
struct pipe_resource *prsc,
unsigned first_level, unsigned last_level);
void lima_update_textures(struct lima_context *ctx);
static inline int16_t lima_float_to_fixed8(float f)
{
return (int)(f * 16.0);
}
static inline float lima_fixed8_to_float(int16_t i)
{
float sign = 1.0;
if (i > 0xff) {
i = 0x200 - i;
sign = -1;
}
return sign * (float)(i / 16.0);
}
#endif
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