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26a54ed6fddd42d8dba3d0c18d9d23ea63c62807
third_party_mesa3d/src/gallium/drivers/r300/r300_texture.c
Marek Olšák 26a54ed6fd r300g: pick up some new colorbuffer formats
2010-04-11 01:32:15 +02:00

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/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
* Copyright 2010 Marek Olšák <maraeo@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. */
#include "pipe/p_screen.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "r300_context.h"
#include "r300_texture.h"
#include "r300_transfer.h"
#include "r300_screen.h"
#include "r300_winsys.h"
/* XXX Enable float textures here. */
/*#define ENABLE_FLOAT_TEXTURES*/
#define TILE_WIDTH 0
#define TILE_HEIGHT 1
static const unsigned microblock_table[5][3][2] = {
/*linear tiled square-tiled */
{{32, 1}, {8, 4}, {0, 0}}, /* 8 bits per pixel */
{{16, 1}, {8, 2}, {4, 4}}, /* 16 bits per pixel */
{{ 8, 1}, {4, 2}, {0, 0}}, /* 32 bits per pixel */
{{ 4, 1}, {0, 0}, {2, 2}}, /* 64 bits per pixel */
{{ 2, 1}, {0, 0}, {0, 0}} /* 128 bits per pixel */
};
/* Return true for non-compressed and non-YUV formats. */
static boolean r300_format_is_plain(enum pipe_format format)
{
const struct util_format_description *desc = util_format_description(format);
if (!format) {
return FALSE;
}
return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN;
}
/* Translate a pipe_format into a useful texture format for sampling.
*
* Some special formats are translated directly using R300_EASY_TX_FORMAT,
* but the majority of them is translated in a generic way, automatically
* supporting all the formats hw can support.
*
* 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 uint32_t r300_translate_texformat(enum pipe_format format)
{
uint32_t result = 0;
const struct util_format_description *desc;
unsigned i;
boolean uniform = TRUE;
const uint32_t swizzle_shift[4] = {
R300_TX_FORMAT_R_SHIFT,
R300_TX_FORMAT_G_SHIFT,
R300_TX_FORMAT_B_SHIFT,
R300_TX_FORMAT_A_SHIFT
};
const uint32_t swizzle[4] = {
R300_TX_FORMAT_X,
R300_TX_FORMAT_Y,
R300_TX_FORMAT_Z,
R300_TX_FORMAT_W
};
const uint32_t sign_bit[4] = {
R300_TX_FORMAT_SIGNED_X,
R300_TX_FORMAT_SIGNED_Y,
R300_TX_FORMAT_SIGNED_Z,
R300_TX_FORMAT_SIGNED_W,
};
/* This is truly a special format.
* It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2). */
if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
return ~0; /* Unsupported. */
}
desc = util_format_description(format);
/* Colorspace (return non-RGB formats directly). */
switch (desc->colorspace) {
/* Depth stencil formats. */
case UTIL_FORMAT_COLORSPACE_ZS:
switch (format) {
case PIPE_FORMAT_Z16_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, X16);
case PIPE_FORMAT_X8Z24_UNORM:
case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
default:
return ~0; /* Unsupported. */
}
/* YUV formats. */
case UTIL_FORMAT_COLORSPACE_YUV:
result |= R300_TX_FORMAT_YUV_TO_RGB;
switch (format) {
case PIPE_FORMAT_UYVY:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
case PIPE_FORMAT_YUYV:
return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
default:
return ~0; /* Unsupported/unknown. */
}
/* Add gamma correction. */
case UTIL_FORMAT_COLORSPACE_SRGB:
result |= R300_TX_FORMAT_GAMMA;
break;
default:;
}
/* Add swizzle. */
for (i = 0; i < 4; i++) {
switch (desc->swizzle[i]) {
case UTIL_FORMAT_SWIZZLE_X:
case UTIL_FORMAT_SWIZZLE_NONE:
result |= swizzle[0] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_Y:
result |= swizzle[1] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_Z:
result |= swizzle[2] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_W:
result |= swizzle[3] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_0:
result |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_1:
result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
break;
default:
return ~0; /* Unsupported. */
}
}
/* S3TC formats. */
if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
switch (format) {
case PIPE_FORMAT_DXT1_RGB:
case PIPE_FORMAT_DXT1_RGBA:
case PIPE_FORMAT_DXT1_SRGB:
case PIPE_FORMAT_DXT1_SRGBA:
return R300_TX_FORMAT_DXT1 | result;
case PIPE_FORMAT_DXT3_RGBA:
case PIPE_FORMAT_DXT3_SRGBA:
return R300_TX_FORMAT_DXT3 | result;
case PIPE_FORMAT_DXT5_RGBA:
case PIPE_FORMAT_DXT5_SRGBA:
return R300_TX_FORMAT_DXT5 | result;
default:
return ~0; /* Unsupported/unknown. */
}
}
/* Add sign. */
for (i = 0; i < desc->nr_channels; i++) {
if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
result |= sign_bit[i];
}
}
/* RGTC formats. */
if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
switch (format) {
case PIPE_FORMAT_RGTC1_UNORM:
case PIPE_FORMAT_RGTC1_SNORM:
return R500_TX_FORMAT_ATI1N | result;
case PIPE_FORMAT_RGTC2_UNORM:
case PIPE_FORMAT_RGTC2_SNORM:
return R400_TX_FORMAT_ATI2N | result;
default:
return ~0; /* Unsupported/unknown. */
}
}
/* See whether the components are of the same size. */
for (i = 1; i < desc->nr_channels; i++) {
uniform = uniform && desc->channel[0].size == desc->channel[i].size;
}
/* Non-uniform formats. */
if (!uniform) {
switch (desc->nr_channels) {
case 3:
if (desc->channel[0].size == 5 &&
desc->channel[1].size == 6 &&
desc->channel[2].size == 5) {
return R300_TX_FORMAT_Z5Y6X5 | result;
}
if (desc->channel[0].size == 5 &&
desc->channel[1].size == 5 &&
desc->channel[2].size == 6) {
return R300_TX_FORMAT_Z6Y5X5 | result;
}
return ~0; /* Unsupported/unknown. */
case 4:
if (desc->channel[0].size == 5 &&
desc->channel[1].size == 5 &&
desc->channel[2].size == 5 &&
desc->channel[3].size == 1) {
return R300_TX_FORMAT_W1Z5Y5X5 | result;
}
if (desc->channel[0].size == 10 &&
desc->channel[1].size == 10 &&
desc->channel[2].size == 10 &&
desc->channel[3].size == 2) {
return R300_TX_FORMAT_W2Z10Y10X10 | result;
}
}
return ~0; /* Unsupported/unknown. */
}
/* And finally, uniform formats. */
switch (desc->channel[0].type) {
case UTIL_FORMAT_TYPE_UNSIGNED:
case UTIL_FORMAT_TYPE_SIGNED:
if (!desc->channel[0].normalized &&
desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
return ~0;
}
switch (desc->channel[0].size) {
case 4:
switch (desc->nr_channels) {
case 2:
return R300_TX_FORMAT_Y4X4 | result;
case 4:
return R300_TX_FORMAT_W4Z4Y4X4 | result;
}
return ~0;
case 8:
switch (desc->nr_channels) {
case 1:
return R300_TX_FORMAT_X8 | result;
case 2:
return R300_TX_FORMAT_Y8X8 | result;
case 4:
return R300_TX_FORMAT_W8Z8Y8X8 | result;
}
return ~0;
case 16:
switch (desc->nr_channels) {
case 1:
return R300_TX_FORMAT_X16 | result;
case 2:
return R300_TX_FORMAT_Y16X16 | result;
case 4:
return R300_TX_FORMAT_W16Z16Y16X16 | result;
}
}
return ~0;
#if defined(ENABLE_FLOAT_TEXTURES)
case UTIL_FORMAT_TYPE_FLOAT:
switch (desc->channel[0].size) {
case 16:
switch (desc->nr_channels) {
case 1:
return R300_TX_FORMAT_16F | result;
case 2:
return R300_TX_FORMAT_16F_16F | result;
case 4:
return R300_TX_FORMAT_16F_16F_16F_16F | result;
}
return ~0;
case 32:
switch (desc->nr_channels) {
case 1:
return R300_TX_FORMAT_32F | result;
case 2:
return R300_TX_FORMAT_32F_32F | result;
case 4:
return R300_TX_FORMAT_32F_32F_32F_32F | result;
}
}
#endif
}
return ~0; /* Unsupported/unknown. */
}
static uint32_t r500_tx_format_msb_bit(enum pipe_format format)
{
switch (format) {
case PIPE_FORMAT_RGTC1_UNORM:
case PIPE_FORMAT_RGTC1_SNORM:
return R500_TXFORMAT_MSB;
default:
return 0;
}
}
/* Buffer formats. */
/* Colorbuffer formats. This is the unswizzled format of the RB3D block's
* output. For the swizzling of the targets, check the shader's format. */
static uint32_t r300_translate_colorformat(enum pipe_format format)
{
switch (format) {
/* 8-bit buffers. */
case PIPE_FORMAT_A8_UNORM:
case PIPE_FORMAT_I8_UNORM:
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_R8_UNORM:
case PIPE_FORMAT_R8_SNORM:
return R300_COLOR_FORMAT_I8;
/* 16-bit buffers. */
case PIPE_FORMAT_B5G6R5_UNORM:
return R300_COLOR_FORMAT_RGB565;
case PIPE_FORMAT_B5G5R5A1_UNORM:
case PIPE_FORMAT_B5G5R5X1_UNORM:
return R300_COLOR_FORMAT_ARGB1555;
case PIPE_FORMAT_B4G4R4A4_UNORM:
case PIPE_FORMAT_B4G4R4X4_UNORM:
return R300_COLOR_FORMAT_ARGB4444;
/* 32-bit buffers. */
case PIPE_FORMAT_B8G8R8A8_UNORM:
case PIPE_FORMAT_B8G8R8X8_UNORM:
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
case PIPE_FORMAT_A8B8G8R8_UNORM:
case PIPE_FORMAT_R8G8B8A8_SNORM:
case PIPE_FORMAT_X8B8G8R8_UNORM:
case PIPE_FORMAT_R8G8B8X8_UNORM:
case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
return R300_COLOR_FORMAT_ARGB8888;
case PIPE_FORMAT_R10G10B10A2_UNORM:
case PIPE_FORMAT_R10G10B10X2_SNORM:
case PIPE_FORMAT_B10G10R10A2_UNORM:
case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
return R500_COLOR_FORMAT_ARGB2101010; /* R5xx-only? */
/* 64-bit buffers. */
case PIPE_FORMAT_R16G16B16A16_UNORM:
case PIPE_FORMAT_R16G16B16A16_SNORM:
#if defined(ENABLE_FLOAT_TEXTURES)
case PIPE_FORMAT_R16G16B16A16_FLOAT:
#endif
return R300_COLOR_FORMAT_ARGB16161616;
/* 128-bit buffers. */
#if defined(ENABLE_FLOAT_TEXTURES)
case PIPE_FORMAT_R32G32B32A32_FLOAT:
return R300_COLOR_FORMAT_ARGB32323232;
#endif
/* YUV buffers. */
case PIPE_FORMAT_UYVY:
return R300_COLOR_FORMAT_YVYU;
case PIPE_FORMAT_YUYV:
return R300_COLOR_FORMAT_VYUY;
default:
return ~0; /* Unsupported. */
}
}
/* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
static uint32_t r300_translate_zsformat(enum pipe_format format)
{
switch (format) {
/* 16-bit depth, no stencil */
case PIPE_FORMAT_Z16_UNORM:
return R300_DEPTHFORMAT_16BIT_INT_Z;
/* 24-bit depth, ignored stencil */
case PIPE_FORMAT_X8Z24_UNORM:
/* 24-bit depth, 8-bit stencil */
case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
default:
return ~0; /* Unsupported. */
}
}
/* Shader output formats. This is essentially the swizzle from the shader
* to the RB3D block.
*
* Note that formats are stored from C3 to C0. */
static uint32_t r300_translate_out_fmt(enum pipe_format format)
{
uint32_t modifier = 0;
unsigned i;
const struct util_format_description *desc;
static const uint32_t sign_bit[4] = {
R300_OUT_SIGN(0x1),
R300_OUT_SIGN(0x2),
R300_OUT_SIGN(0x4),
R300_OUT_SIGN(0x8),
};
desc = util_format_description(format);
/* Specifies how the shader output is written to the fog unit. */
if (desc->channel[0].type == UTIL_FORMAT_TYPE_FLOAT) {
if (desc->channel[0].size == 32) {
modifier |= R300_US_OUT_FMT_C4_32_FP;
} else {
modifier |= R300_US_OUT_FMT_C4_16_FP;
}
} else {
if (desc->channel[0].size == 16) {
modifier |= R300_US_OUT_FMT_C4_16;
} else {
/* C4_8 seems to be used for the formats whose pixel size
* is <= 32 bits. */
modifier |= R300_US_OUT_FMT_C4_8;
}
}
/* Add sign. */
for (i = 0; i < 4; i++)
if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
modifier |= sign_bit[i];
}
/* Add swizzles and return. */
switch (format) {
/* 8-bit outputs.
* COLORFORMAT_I8 stores the C2 component. */
case PIPE_FORMAT_A8_UNORM:
return modifier | R300_C2_SEL_A;
case PIPE_FORMAT_I8_UNORM:
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_R8_UNORM:
case PIPE_FORMAT_R8_SNORM:
return modifier | R300_C2_SEL_R;
/* BGRA outputs. */
case PIPE_FORMAT_B5G6R5_UNORM:
case PIPE_FORMAT_B5G5R5A1_UNORM:
case PIPE_FORMAT_B5G5R5X1_UNORM:
case PIPE_FORMAT_B4G4R4A4_UNORM:
case PIPE_FORMAT_B4G4R4X4_UNORM:
case PIPE_FORMAT_B8G8R8A8_UNORM:
case PIPE_FORMAT_B8G8R8X8_UNORM:
case PIPE_FORMAT_B10G10R10A2_UNORM:
return modifier |
R300_C0_SEL_B | R300_C1_SEL_G |
R300_C2_SEL_R | R300_C3_SEL_A;
/* ARGB outputs. */
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
return modifier |
R300_C0_SEL_A | R300_C1_SEL_R |
R300_C2_SEL_G | R300_C3_SEL_B;
/* ABGR outputs. */
case PIPE_FORMAT_A8B8G8R8_UNORM:
case PIPE_FORMAT_X8B8G8R8_UNORM:
return modifier |
R300_C0_SEL_A | R300_C1_SEL_B |
R300_C2_SEL_G | R300_C3_SEL_R;
/* RGBA outputs. */
case PIPE_FORMAT_R8G8B8X8_UNORM:
case PIPE_FORMAT_R8G8B8A8_SNORM:
case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
case PIPE_FORMAT_R10G10B10A2_UNORM:
case PIPE_FORMAT_R10G10B10X2_SNORM:
case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
case PIPE_FORMAT_R16G16B16A16_UNORM:
case PIPE_FORMAT_R16G16B16A16_SNORM:
//case PIPE_FORMAT_R16G16B16A16_FLOAT: /* not in pipe_format */
case PIPE_FORMAT_R32G32B32A32_FLOAT:
return modifier |
R300_C0_SEL_R | R300_C1_SEL_G |
R300_C2_SEL_B | R300_C3_SEL_A;
default:
return ~0; /* Unsupported. */
}
}
boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
{
return r300_translate_colorformat(format) != ~0 &&
r300_translate_out_fmt(format) != ~0;
}
boolean r300_is_zs_format_supported(enum pipe_format format)
{
return r300_translate_zsformat(format) != ~0;
}
boolean r300_is_sampler_format_supported(enum pipe_format format)
{
return r300_translate_texformat(format) != ~0;
}
static void r300_setup_texture_state(struct r300_screen* screen, struct r300_texture* tex)
{
struct r300_texture_format_state* state = &tex->state;
struct pipe_resource *pt = &tex->b.b;
unsigned i;
boolean is_r500 = screen->caps.is_r500;
/* Set sampler state. */
state->format0 = R300_TX_WIDTH((pt->width0 - 1) & 0x7ff) |
R300_TX_HEIGHT((pt->height0 - 1) & 0x7ff);
if (tex->uses_pitch) {
/* rectangles love this */
state->format0 |= R300_TX_PITCH_EN;
state->format2 = (tex->pitch[0] - 1) & 0x1fff;
} else {
/* power of two textures (3D, mipmaps, and no pitch) */
state->format0 |= R300_TX_DEPTH(util_logbase2(pt->depth0) & 0xf);
}
state->format1 = r300_translate_texformat(pt->format);
if (pt->target == PIPE_TEXTURE_CUBE) {
state->format1 |= R300_TX_FORMAT_CUBIC_MAP;
}
if (pt->target == PIPE_TEXTURE_3D) {
state->format1 |= R300_TX_FORMAT_3D;
}
/* large textures on r500 */
if (is_r500)
{
if (pt->width0 > 2048) {
state->format2 |= R500_TXWIDTH_BIT11;
}
if (pt->height0 > 2048) {
state->format2 |= R500_TXHEIGHT_BIT11;
}
state->format2 |= r500_tx_format_msb_bit(pt->format);
}
SCREEN_DBG(screen, DBG_TEX, "r300: Set texture state (%dx%d, %d levels)\n",
pt->width0, pt->height0, pt->last_level);
/* Set framebuffer state. */
if (util_format_is_depth_or_stencil(tex->b.b.format)) {
for (i = 0; i <= tex->b.b.last_level; i++) {
tex->fb_state.depthpitch[i] =
tex->pitch[i] |
R300_DEPTHMACROTILE(tex->mip_macrotile[i]) |
R300_DEPTHMICROTILE(tex->microtile);
}
tex->fb_state.zb_format = r300_translate_zsformat(tex->b.b.format);
} else {
for (i = 0; i <= tex->b.b.last_level; i++) {
tex->fb_state.colorpitch[i] =
tex->pitch[i] |
r300_translate_colorformat(tex->b.b.format) |
R300_COLOR_TILE(tex->mip_macrotile[i]) |
R300_COLOR_MICROTILE(tex->microtile);
}
tex->fb_state.us_out_fmt = r300_translate_out_fmt(tex->b.b.format);
}
}
void r300_texture_reinterpret_format(struct pipe_screen *screen,
struct pipe_resource *tex,
enum pipe_format new_format)
{
struct r300_screen *r300screen = r300_screen(screen);
SCREEN_DBG(r300screen, DBG_TEX, "r300: Reinterpreting format: %s -> %s\n",
util_format_name(tex->format), util_format_name(new_format));
tex->format = new_format;
r300_setup_texture_state(r300_screen(screen), r300_texture(tex));
}
unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level,
unsigned zslice, unsigned face)
{
unsigned offset = tex->offset[level];
switch (tex->b.b.target) {
case PIPE_TEXTURE_3D:
assert(face == 0);
return offset + zslice * tex->layer_size[level];
case PIPE_TEXTURE_CUBE:
assert(zslice == 0);
return offset + face * tex->layer_size[level];
default:
assert(zslice == 0 && face == 0);
return offset;
}
}
/**
* Return the width (dim==TILE_WIDTH) or height (dim==TILE_HEIGHT) of one tile
* of the given texture.
*/
static unsigned r300_texture_get_tile_size(struct r300_texture* tex,
int dim, boolean macrotile)
{
unsigned pixsize, tile_size;
pixsize = util_format_get_blocksize(tex->b.b.format);
tile_size = microblock_table[util_logbase2(pixsize)][tex->microtile][dim];
if (macrotile) {
tile_size *= 8;
}
assert(tile_size);
return tile_size;
}
/* Return true if macrotiling should be enabled on the miplevel. */
static boolean r300_texture_macro_switch(struct r300_texture *tex,
unsigned level,
boolean rv350_mode,
int dim)
{
unsigned tile, texdim;
tile = r300_texture_get_tile_size(tex, dim, TRUE);
if (dim == TILE_WIDTH) {
texdim = u_minify(tex->b.b.width0, level);
} else {
texdim = u_minify(tex->b.b.height0, level);
}
/* See TX_FILTER1_n.MACRO_SWITCH. */
if (rv350_mode) {
return texdim >= tile;
} else {
return texdim > tile;
}
}
/**
* Return the stride, in bytes, of the texture images of the given texture
* at the given level.
*/
unsigned r300_texture_get_stride(struct r300_screen* screen,
struct r300_texture* tex, unsigned level)
{
unsigned tile_width, width;
if (tex->stride_override)
return tex->stride_override;
/* Check the level. */
if (level > tex->b.b.last_level) {
SCREEN_DBG(screen, DBG_TEX, "%s: level (%u) > last_level (%u)\n",
__FUNCTION__, level, tex->b.b.last_level);
return 0;
}
width = u_minify(tex->b.b.width0, level);
if (r300_format_is_plain(tex->b.b.format)) {
tile_width = r300_texture_get_tile_size(tex, TILE_WIDTH,
tex->mip_macrotile[level]);
width = align(width, tile_width);
return util_format_get_stride(tex->b.b.format, width);
} else {
return align(util_format_get_stride(tex->b.b.format, width), 32);
}
}
static unsigned r300_texture_get_nblocksy(struct r300_texture* tex,
unsigned level)
{
unsigned height, tile_height;
height = u_minify(tex->b.b.height0, level);
if (r300_format_is_plain(tex->b.b.format)) {
tile_height = r300_texture_get_tile_size(tex, TILE_HEIGHT,
tex->mip_macrotile[level]);
height = align(height, tile_height);
/* This is needed for the kernel checker, unfortunately. */
height = util_next_power_of_two(height);
}
return util_format_get_nblocksy(tex->b.b.format, height);
}
static void r300_setup_miptree(struct r300_screen* screen,
struct r300_texture* tex)
{
struct pipe_resource* base = &tex->b.b;
unsigned stride, size, layer_size, nblocksy, i;
boolean rv350_mode = screen->caps.family >= CHIP_FAMILY_RV350;
SCREEN_DBG(screen, DBG_TEX, "r300: Making miptree for texture, format %s\n",
util_format_name(base->format));
for (i = 0; i <= base->last_level; i++) {
/* Let's see if this miplevel can be macrotiled. */
tex->mip_macrotile[i] =
(tex->macrotile == R300_BUFFER_TILED &&
r300_texture_macro_switch(tex, i, rv350_mode, TILE_WIDTH) &&
r300_texture_macro_switch(tex, i, rv350_mode, TILE_HEIGHT)) ?
R300_BUFFER_TILED : R300_BUFFER_LINEAR;
stride = r300_texture_get_stride(screen, tex, i);
nblocksy = r300_texture_get_nblocksy(tex, i);
layer_size = stride * nblocksy;
if (base->target == PIPE_TEXTURE_CUBE)
size = layer_size * 6;
else
size = layer_size * u_minify(base->depth0, i);
tex->offset[i] = tex->size;
tex->size = tex->offset[i] + size;
tex->layer_size[i] = layer_size;
tex->pitch[i] = stride / util_format_get_blocksize(base->format);
SCREEN_DBG(screen, DBG_TEX, "r300: Texture miptree: Level %d "
"(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n",
i, u_minify(base->width0, i), u_minify(base->height0, i),
u_minify(base->depth0, i), stride, tex->size,
tex->mip_macrotile[i] ? "TRUE" : "FALSE");
}
}
static void r300_setup_flags(struct r300_texture* tex)
{
tex->uses_pitch = !util_is_power_of_two(tex->b.b.width0) ||
!util_is_power_of_two(tex->b.b.height0) ||
tex->stride_override;
}
static void r300_setup_tiling(struct pipe_screen *screen,
struct r300_texture *tex)
{
struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
enum pipe_format format = tex->b.b.format;
boolean rv350_mode = r300_screen(screen)->caps.family >= CHIP_FAMILY_RV350;
if (!r300_format_is_plain(format)) {
return;
}
if (tex->b.b.width0 == 1 ||
tex->b.b.height0 == 1) {
return;
}
/* Set microtiling. */
switch (util_format_get_blocksize(format)) {
case 1:
case 4:
tex->microtile = R300_BUFFER_TILED;
break;
case 2:
case 8:
if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) {
tex->microtile = R300_BUFFER_SQUARETILED;
}
break;
}
/* Set macrotiling. */
if (r300_texture_macro_switch(tex, 0, rv350_mode, TILE_WIDTH) &&
r300_texture_macro_switch(tex, 0, rv350_mode, TILE_HEIGHT)) {
tex->macrotile = R300_BUFFER_TILED;
}
}
static unsigned r300_texture_is_referenced(struct pipe_context *context,
struct pipe_resource *texture,
unsigned face, unsigned level)
{
struct r300_context *r300 = r300_context(context);
struct r300_texture *rtex = (struct r300_texture *)texture;
if (r300->rws->is_buffer_referenced(r300->rws, rtex->buffer))
return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
return PIPE_UNREFERENCED;
}
static void r300_texture_destroy(struct pipe_screen *screen,
struct pipe_resource* texture)
{
struct r300_texture* tex = (struct r300_texture*)texture;
struct r300_winsys_screen *rws = (struct r300_winsys_screen *)texture->screen->winsys;
rws->buffer_reference(rws, &tex->buffer, NULL);
FREE(tex);
}
static boolean
r300_texture_get_handle(struct pipe_screen* screen,
struct pipe_resource *texture,
struct winsys_handle *whandle)
{
struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
struct r300_texture* tex = (struct r300_texture*)texture;
unsigned stride;
if (!tex) {
return FALSE;
}
stride = r300_texture_get_stride(r300_screen(screen), tex, 0);
rws->buffer_get_handle(rws, tex->buffer, stride, whandle);
return TRUE;
}
struct u_resource_vtbl r300_texture_vtbl =
{
r300_texture_get_handle, /* get_handle */
r300_texture_destroy, /* resource_destroy */
r300_texture_is_referenced, /* is_resource_referenced */
r300_texture_get_transfer, /* get_transfer */
r300_texture_transfer_destroy, /* transfer_destroy */
r300_texture_transfer_map, /* transfer_map */
u_default_transfer_flush_region, /* transfer_flush_region */
r300_texture_transfer_unmap, /* transfer_unmap */
u_default_transfer_inline_write /* transfer_inline_write */
};
/* Create a new texture. */
struct pipe_resource* r300_texture_create(struct pipe_screen* screen,
const struct pipe_resource* base)
{
struct r300_texture* tex = CALLOC_STRUCT(r300_texture);
struct r300_screen* rscreen = r300_screen(screen);
struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
if (!tex) {
return NULL;
}
tex->b.b = *base;
tex->b.vtbl = &r300_texture_vtbl;
pipe_reference_init(&tex->b.b.reference, 1);
tex->b.b.screen = screen;
r300_setup_flags(tex);
if (!(base->flags & R300_RESOURCE_FLAG_TRANSFER) &&
!(base->bind & PIPE_BIND_SCANOUT)) {
r300_setup_tiling(screen, tex);
}
r300_setup_miptree(rscreen, tex);
r300_setup_texture_state(rscreen, tex);
tex->buffer = rws->buffer_create(rws, 2048,
PIPE_BIND_SAMPLER_VIEW, /* XXX */
tex->size);
rws->buffer_set_tiling(rws, tex->buffer,
tex->pitch[0],
tex->microtile,
tex->macrotile);
if (!tex->buffer) {
FREE(tex);
return NULL;
}
return (struct pipe_resource*)tex;
}
/* Not required to implement u_resource_vtbl, consider moving to another file:
*/
struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen,
struct pipe_resource* texture,
unsigned face,
unsigned level,
unsigned zslice,
unsigned flags)
{
struct r300_texture* tex = r300_texture(texture);
struct pipe_surface* surface = CALLOC_STRUCT(pipe_surface);
unsigned offset;
offset = r300_texture_get_offset(tex, level, zslice, face);
if (surface) {
pipe_reference_init(&surface->reference, 1);
pipe_resource_reference(&surface->texture, texture);
surface->format = texture->format;
surface->width = u_minify(texture->width0, level);
surface->height = u_minify(texture->height0, level);
surface->offset = offset;
surface->usage = flags;
surface->zslice = zslice;
surface->texture = texture;
surface->face = face;
surface->level = level;
}
return surface;
}
/* Not required to implement u_resource_vtbl, consider moving to another file:
*/
void r300_tex_surface_destroy(struct pipe_surface* s)
{
pipe_resource_reference(&s->texture, NULL);
FREE(s);
}
struct pipe_resource*
r300_texture_from_handle(struct pipe_screen* screen,
const struct pipe_resource* base,
struct winsys_handle *whandle)
{
struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys;
struct r300_screen* rscreen = r300_screen(screen);
struct r300_winsys_buffer *buffer;
struct r300_texture* tex;
unsigned stride;
boolean override_zb_flags;
/* Support only 2D textures without mipmaps */
if (base->target != PIPE_TEXTURE_2D ||
base->depth0 != 1 ||
base->last_level != 0) {
return NULL;
}
buffer = rws->buffer_from_handle(rws, screen, whandle, &stride);
if (!buffer) {
return NULL;
}
tex = CALLOC_STRUCT(r300_texture);
if (!tex) {
return NULL;
}
tex->b.b = *base;
tex->b.vtbl = &r300_texture_vtbl;
pipe_reference_init(&tex->b.b.reference, 1);
tex->b.b.screen = screen;
tex->stride_override = stride;
/* one ref already taken */
tex->buffer = buffer;
rws->buffer_get_tiling(rws, buffer, &tex->microtile, &tex->macrotile);
r300_setup_flags(tex);
/* Enforce microtiled zbuffer. */
override_zb_flags = util_format_is_depth_or_stencil(base->format) &&
tex->microtile == R300_BUFFER_LINEAR;
if (override_zb_flags) {
switch (util_format_get_blocksize(base->format)) {
case 4:
tex->microtile = R300_BUFFER_TILED;
break;
case 2:
if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) {
tex->microtile = R300_BUFFER_SQUARETILED;
break;
}
/* Pass through. */
default:
override_zb_flags = FALSE;
}
}
r300_setup_miptree(rscreen, tex);
r300_setup_texture_state(rscreen, tex);
if (override_zb_flags) {
rws->buffer_set_tiling(rws, tex->buffer,
tex->pitch[0],
tex->microtile,
tex->macrotile);
}
return (struct pipe_resource*)tex;
}
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