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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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
* on 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 AUTHOR(S) AND/OR THEIR SUPPLIERS 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 R300_TEXTURE_H
#define R300_TEXTURE_H
#include "pipe/p_video_state.h"
#include "util/u_format.h"
#include "r300_reg.h"
struct r300_texture;
void r300_init_screen_texture_functions(struct pipe_screen* screen);
unsigned r300_texture_get_stride(struct r300_screen* screen,
struct r300_texture* tex, unsigned level);
unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level,
unsigned zslice, unsigned face);
void r300_texture_reinterpret_format(struct pipe_screen *screen,
struct pipe_texture *tex,
enum pipe_format new_format);
/* Translate a pipe_format into a useful texture format for sampling.
*
* R300_EASY_TX_FORMAT swizzles the texture.
* Note the signature of R300_EASY_TX_FORMAT:
* R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
*
* The FORMAT specifies how the texture sampler will treat the texture, and
* makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
{
switch (format) {
/* X8 */
case PIPE_FORMAT_A8_UNORM:
return R300_EASY_TX_FORMAT(ZERO, ZERO, ZERO, X, X8);
case PIPE_FORMAT_I8_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, X8);
case PIPE_FORMAT_L8_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, ONE, X8);
case PIPE_FORMAT_L8_SRGB:
return R300_EASY_TX_FORMAT(X, X, X, ONE, X8) |
R300_TX_FORMAT_GAMMA;
/* X16 */
case PIPE_FORMAT_A4R4G4B4_UNORM:
return R300_EASY_TX_FORMAT(X, Y, Z, W, W4Z4Y4X4);
case PIPE_FORMAT_R16_UNORM:
case PIPE_FORMAT_Z16_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, X16);
case PIPE_FORMAT_R16_SNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, X16) |
R300_TX_FORMAT_SIGNED;
/* Z5Y6X5 */
case PIPE_FORMAT_R5G6B5_UNORM:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
/* W1Z5Y5X5*/
case PIPE_FORMAT_A1R5G5B5_UNORM:
return R300_EASY_TX_FORMAT(X, Y, Z, W, W1Z5Y5X5);
/* Y8X8 */
case PIPE_FORMAT_A8L8_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, Y, Y8X8);
case PIPE_FORMAT_A8L8_SRGB:
return R300_EASY_TX_FORMAT(X, X, X, Y, Y8X8) |
R300_TX_FORMAT_GAMMA;
/* W8Z8Y8X8 */
case PIPE_FORMAT_A8R8G8B8_UNORM:
return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
case PIPE_FORMAT_R8G8B8A8_UNORM:
return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
case PIPE_FORMAT_X8R8G8B8_UNORM:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
case PIPE_FORMAT_R8G8B8X8_UNORM:
return R300_EASY_TX_FORMAT(Y, Z, ONE, X, W8Z8Y8X8);
case PIPE_FORMAT_A8R8G8B8_SRGB:
return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8) |
R300_TX_FORMAT_GAMMA;
case PIPE_FORMAT_R8G8B8A8_SRGB:
return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8) |
R300_TX_FORMAT_GAMMA;
/* DXT1 */
case PIPE_FORMAT_DXT1_RGB:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, DXT1);
case PIPE_FORMAT_DXT1_RGBA:
return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT1);
/* DXT3 */
case PIPE_FORMAT_DXT3_RGBA:
return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT3);
/* DXT5 */
case PIPE_FORMAT_DXT5_RGBA:
return R300_EASY_TX_FORMAT(Y, Z, W, X, DXT5);
/* YVYU422 */
case PIPE_FORMAT_YCBCR:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) |
R300_TX_FORMAT_YUV_TO_RGB;
/* W24_FP */
case PIPE_FORMAT_Z24S8_UNORM:
case PIPE_FORMAT_Z24X8_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
default:
debug_printf("r300: Implementation error: "
"Got unsupported texture format %s in %s\n",
util_format_name(format), __FUNCTION__);
assert(0);
break;
}
return 0;
}
struct r300_video_surface
{
struct pipe_video_surface base;
struct pipe_texture *tex;
};
static INLINE struct r300_video_surface *
r300_video_surface(struct pipe_video_surface *pvs)
{
return (struct r300_video_surface *)pvs;
}
#ifndef R300_WINSYS_H
boolean r300_get_texture_buffer(struct pipe_screen* screen,
struct pipe_texture* texture,
struct pipe_buffer** buffer,
unsigned* stride);
#endif /* R300_WINSYS_H */
#endif /* R300_TEXTURE_H */
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