/*
* Copyright (C) 2009 Maciej Cencora.
* Copyright (C) 2008 Nicolai Haehnle.
* Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
*
* The Weather Channel (TM) funded Tungsten Graphics to develop the
* initial release of the Radeon 8500 driver under the XFree86 license.
* This notice must be preserved.
*
* 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, sublicense, 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 NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS 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 "main/glheader.h"
#include "main/imports.h"
#include "main/context.h"
#include "main/enums.h"
#include "main/mipmap.h"
#include "main/pbo.h"
#include "main/texcompress.h"
#include "main/texstore.h"
#include "main/teximage.h"
#include "main/texobj.h"
#include "drivers/common/meta.h"
#include "xmlpool.h" /* for symbolic values of enum-type options */
#include "radeon_common.h"
#include "radeon_mipmap_tree.h"
static void teximage_assign_miptree(radeonContextPtr rmesa,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage);
static radeon_mipmap_tree *radeon_miptree_create_for_teximage(radeonContextPtr rmesa,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage);
void copy_rows(void* dst, GLuint dststride, const void* src, GLuint srcstride,
GLuint numrows, GLuint rowsize)
{
assert(rowsize <= dststride);
assert(rowsize <= srcstride);
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s dst %p, stride %u, src %p, stride %u, "
"numrows %u, rowsize %u.\n",
__func__, dst, dststride,
src, srcstride,
numrows, rowsize);
if (rowsize == srcstride && rowsize == dststride) {
memcpy(dst, src, numrows*rowsize);
} else {
GLuint i;
for(i = 0; i < numrows; ++i) {
memcpy(dst, src, rowsize);
dst += dststride;
src += srcstride;
}
}
}
/* textures */
/**
* Allocate an empty texture image object.
*/
struct gl_texture_image *radeonNewTextureImage(struct gl_context *ctx)
{
return calloc(1, sizeof(radeon_texture_image));
}
/**
* Delete a texture image object.
*/
static void
radeonDeleteTextureImage(struct gl_context *ctx, struct gl_texture_image *img)
{
/* nothing special (yet) for radeon_texture_image */
_mesa_delete_texture_image(ctx, img);
}
static GLboolean
radeonAllocTextureImageBuffer(struct gl_context *ctx,
struct gl_texture_image *timage)
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
struct gl_texture_object *texobj = timage->TexObject;
ctx->Driver.FreeTextureImageBuffer(ctx, timage);
if (!_swrast_init_texture_image(timage))
return GL_FALSE;
teximage_assign_miptree(rmesa, texobj, timage);
return GL_TRUE;
}
/**
* Free memory associated with this texture image.
*/
void radeonFreeTextureImageBuffer(struct gl_context *ctx, struct gl_texture_image *timage)
{
radeon_texture_image* image = get_radeon_texture_image(timage);
if (image->mt) {
radeon_miptree_unreference(&image->mt);
}
if (image->bo) {
radeon_bo_unref(image->bo);
image->bo = NULL;
}
_swrast_free_texture_image_buffer(ctx, timage);
}
/**
* Map texture memory/buffer into user space.
* Note: the region of interest parameters are ignored here.
* \param mapOut returns start of mapping of region of interest
* \param rowStrideOut returns row stride in bytes
*/
static void
radeon_map_texture_image(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLuint slice,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
GLubyte **map,
GLint *stride)
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
radeon_texture_image *image = get_radeon_texture_image(texImage);
radeon_mipmap_tree *mt = image->mt;
GLuint texel_size = _mesa_get_format_bytes(texImage->TexFormat);
GLuint width = texImage->Width;
GLuint height = texImage->Height;
struct radeon_bo *bo = !image->mt ? image->bo : image->mt->bo;
unsigned int bw, bh;
GLboolean write = (mode & GL_MAP_WRITE_BIT) != 0;
_mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
assert(y % bh == 0);
y /= bh;
texel_size /= bw;
if (bo && radeon_bo_is_referenced_by_cs(bo, rmesa->cmdbuf.cs)) {
radeon_print(RADEON_TEXTURE, RADEON_VERBOSE,
"%s for texture that is "
"queued for GPU processing.\n",
__func__);
radeon_firevertices(rmesa);
}
if (image->bo) {
/* TFP case */
radeon_bo_map(image->bo, write);
*stride = get_texture_image_row_stride(rmesa, texImage->TexFormat, width, 0, texImage->TexObject->Target);
*map = bo->ptr;
} else if (likely(mt)) {
void *base;
radeon_mipmap_level *lvl = &image->mt->levels[texImage->Level];
radeon_bo_map(mt->bo, write);
base = mt->bo->ptr + lvl->faces[image->base.Base.Face].offset;
*stride = lvl->rowstride;
*map = base + (slice * height) * *stride;
} else {
/* texture data is in malloc'd memory */
assert(map);
*stride = _mesa_format_row_stride(texImage->TexFormat, width);
*map = image->base.Buffer + (slice * height) * *stride;
}
*map += y * *stride + x * texel_size;
}
static void
radeon_unmap_texture_image(struct gl_context *ctx,
struct gl_texture_image *texImage, GLuint slice)
{
radeon_texture_image *image = get_radeon_texture_image(texImage);
if (image->bo)
radeon_bo_unmap(image->bo);
else if (image->mt)
radeon_bo_unmap(image->mt->bo);
}
/* try to find a format which will only need a memcopy */
static mesa_format radeonChoose8888TexFormat(radeonContextPtr rmesa,
GLenum srcFormat,
GLenum srcType, GLboolean fbo)
{
#if defined(RADEON_R100)
/* r100 can only do this */
return _radeon_texformat_argb8888;
#elif defined(RADEON_R200)
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *)&ui);
/* Unfortunately, regardless the fbo flag, we might still be asked to
* attach a texture to a fbo later, which then won't succeed if we chose
* one which isn't renderable. And unlike more exotic formats, apps aren't
* really prepared for the incomplete framebuffer this results in (they'd
* have to retry with same internalFormat even, just different
* srcFormat/srcType, which can't really be expected anyway).
* Ideally, we'd defer format selection until later (if the texture is
* used as a rt it's likely there's never data uploaded to it before attached
* to a fbo), but this isn't really possible, so for now just always use
* a renderable format.
*/
if (1 || fbo)
return _radeon_texformat_argb8888;
if ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
(srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian)) {
return MESA_FORMAT_A8B8G8R8_UNORM;
} else if ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
(srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian)) {
return MESA_FORMAT_R8G8B8A8_UNORM;
} else
return _radeon_texformat_argb8888;
#endif
}
mesa_format radeonChooseTextureFormat_mesa(struct gl_context * ctx,
GLenum target,
GLint internalFormat,
GLenum format,
GLenum type)
{
return radeonChooseTextureFormat(ctx, internalFormat, format,
type, 0);
}
mesa_format radeonChooseTextureFormat(struct gl_context * ctx,
GLint internalFormat,
GLenum format,
GLenum type, GLboolean fbo)
{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
const GLboolean do32bpt =
(rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_32);
const GLboolean force16bpt =
(rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FORCE_16);
(void)format;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s InternalFormat=%s(%d) type=%s format=%s\n",
__func__,
_mesa_enum_to_string(internalFormat), internalFormat,
_mesa_enum_to_string(type), _mesa_enum_to_string(format));
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s do32bpt=%d force16bpt=%d\n",
__func__, do32bpt, force16bpt);
switch (internalFormat) {
case 4:
case GL_RGBA:
case GL_COMPRESSED_RGBA:
switch (type) {
case GL_UNSIGNED_INT_10_10_10_2:
case GL_UNSIGNED_INT_2_10_10_10_REV:
return do32bpt ? _radeon_texformat_argb8888 :
_radeon_texformat_argb1555;
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
return _radeon_texformat_argb4444;
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
return _radeon_texformat_argb1555;
default:
return do32bpt ? radeonChoose8888TexFormat(rmesa, format, type, fbo) :
_radeon_texformat_argb4444;
}
case 3:
case GL_RGB:
case GL_COMPRESSED_RGB:
switch (type) {
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
return _radeon_texformat_argb4444;
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
return _radeon_texformat_argb1555;
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
return _radeon_texformat_rgb565;
default:
return do32bpt ? _radeon_texformat_argb8888 :
_radeon_texformat_rgb565;
}
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
return !force16bpt ?
radeonChoose8888TexFormat(rmesa, format, type, fbo) :
_radeon_texformat_argb4444;
case GL_RGBA4:
case GL_RGBA2:
return _radeon_texformat_argb4444;
case GL_RGB5_A1:
return _radeon_texformat_argb1555;
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
return !force16bpt ? _radeon_texformat_argb8888 :
_radeon_texformat_rgb565;
case GL_RGB5:
case GL_RGB4:
case GL_R3_G3_B2:
return _radeon_texformat_rgb565;
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
#if defined(RADEON_R200)
/* r200: can't use a8 format since interpreting hw I8 as a8 would result
in wrong rgb values (same as alpha value instead of 0). */
return _radeon_texformat_al88;
#else
return MESA_FORMAT_A_UNORM8;
#endif
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE4:
case GL_LUMINANCE8:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
return MESA_FORMAT_L_UNORM8;
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE4_ALPHA4:
case GL_LUMINANCE6_ALPHA2:
case GL_LUMINANCE8_ALPHA8:
case GL_LUMINANCE12_ALPHA4:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
case GL_COMPRESSED_LUMINANCE_ALPHA:
return _radeon_texformat_al88;
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY8:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
return MESA_FORMAT_I_UNORM8;
case GL_YCBCR_MESA:
if (type == GL_UNSIGNED_SHORT_8_8_APPLE ||
type == GL_UNSIGNED_BYTE)
return MESA_FORMAT_YCBCR;
else
return MESA_FORMAT_YCBCR_REV;
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
return MESA_FORMAT_RGB_DXT1;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
return MESA_FORMAT_RGBA_DXT1;
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
return MESA_FORMAT_RGBA_DXT3;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
return MESA_FORMAT_RGBA_DXT5;
case GL_ALPHA16F_ARB:
return MESA_FORMAT_A_FLOAT16;
case GL_ALPHA32F_ARB:
return MESA_FORMAT_A_FLOAT32;
case GL_LUMINANCE16F_ARB:
return MESA_FORMAT_L_FLOAT16;
case GL_LUMINANCE32F_ARB:
return MESA_FORMAT_L_FLOAT32;
case GL_LUMINANCE_ALPHA16F_ARB:
return MESA_FORMAT_LA_FLOAT16;
case GL_LUMINANCE_ALPHA32F_ARB:
return MESA_FORMAT_LA_FLOAT32;
case GL_INTENSITY16F_ARB:
return MESA_FORMAT_I_FLOAT16;
case GL_INTENSITY32F_ARB:
return MESA_FORMAT_I_FLOAT32;
case GL_RGB16F_ARB:
return MESA_FORMAT_RGBA_FLOAT16;
case GL_RGB32F_ARB:
return MESA_FORMAT_RGBA_FLOAT32;
case GL_RGBA16F_ARB:
return MESA_FORMAT_RGBA_FLOAT16;
case GL_RGBA32F_ARB:
return MESA_FORMAT_RGBA_FLOAT32;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
return MESA_FORMAT_Z24_UNORM_S8_UINT;
/* EXT_texture_sRGB */
case GL_SRGB:
case GL_SRGB8:
case GL_SRGB_ALPHA:
case GL_SRGB8_ALPHA8:
case GL_COMPRESSED_SRGB:
case GL_COMPRESSED_SRGB_ALPHA:
return MESA_FORMAT_B8G8R8A8_SRGB;
case GL_SLUMINANCE:
case GL_SLUMINANCE8:
case GL_COMPRESSED_SLUMINANCE:
return MESA_FORMAT_L_SRGB8;
case GL_SLUMINANCE_ALPHA:
case GL_SLUMINANCE8_ALPHA8:
case GL_COMPRESSED_SLUMINANCE_ALPHA:
return MESA_FORMAT_L8A8_SRGB;
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
return MESA_FORMAT_SRGB_DXT1;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
return MESA_FORMAT_SRGBA_DXT1;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
return MESA_FORMAT_SRGBA_DXT3;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
return MESA_FORMAT_SRGBA_DXT5;
default:
_mesa_problem(ctx,
"unexpected internalFormat 0x%x in %s",
(int)internalFormat, __func__);
return MESA_FORMAT_NONE;
}
return MESA_FORMAT_NONE; /* never get here */
}
/** Check if given image is valid within current texture object.
*/
static void teximage_assign_miptree(radeonContextPtr rmesa,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
radeonTexObj *t = radeon_tex_obj(texObj);
radeon_texture_image* image = get_radeon_texture_image(texImage);
/* Try using current miptree, or create new if there isn't any */
if (!t->mt || !radeon_miptree_matches_image(t->mt, texImage)) {
radeon_miptree_unreference(&t->mt);
t->mt = radeon_miptree_create_for_teximage(rmesa,
texObj,
texImage);
radeon_print(RADEON_TEXTURE, RADEON_NORMAL,
"%s: texObj %p, texImage %p, "
"texObj miptree doesn't match, allocated new miptree %p\n",
__func__, texObj, texImage, t->mt);
}
/* Miptree alocation may have failed,
* when there was no image for baselevel specified */
if (t->mt) {
radeon_miptree_reference(t->mt, &image->mt);
} else
radeon_print(RADEON_TEXTURE, RADEON_VERBOSE,
"%s Failed to allocate miptree.\n", __func__);
}
unsigned radeonIsFormatRenderable(mesa_format mesa_format)
{
if (mesa_format == _radeon_texformat_argb8888 || mesa_format == _radeon_texformat_rgb565 ||
mesa_format == _radeon_texformat_argb1555 || mesa_format == _radeon_texformat_argb4444)
return 1;
switch (mesa_format)
{
case MESA_FORMAT_Z_UNORM16:
case MESA_FORMAT_Z24_UNORM_S8_UINT:
return 1;
default:
return 0;
}
}
void radeon_image_target_texture_2d(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
GLeglImageOES image_handle)
{
radeonContextPtr radeon = RADEON_CONTEXT(ctx);
radeonTexObj *t = radeon_tex_obj(texObj);
radeon_texture_image *radeonImage = get_radeon_texture_image(texImage);
__DRIscreen *screen;
__DRIimage *image;
screen = radeon->radeonScreen->driScreen;
image = screen->dri2.image->lookupEGLImage(screen, image_handle,
screen->loaderPrivate);
if (image == NULL)
return;
radeonFreeTextureImageBuffer(ctx, texImage);
texImage->Width = image->width;
texImage->Height = image->height;
texImage->Depth = 1;
texImage->_BaseFormat = GL_RGBA;
texImage->TexFormat = image->format;
radeonImage->base.RowStride = image->pitch;
texImage->InternalFormat = image->internal_format;
if(t->mt)
{
radeon_miptree_unreference(&t->mt);
t->mt = NULL;
}
/* NOTE: The following is *very* ugly and will probably break. But
I don't know how to deal with it, without creating a whole new
function like radeon_miptree_from_bo() so I'm going with the
easy but error-prone way. */
radeon_try_alloc_miptree(radeon, t);
radeon_miptree_reference(t->mt, &radeonImage->mt);
if (t->mt == NULL)
{
radeon_print(RADEON_TEXTURE, RADEON_VERBOSE,
"%s Failed to allocate miptree.\n", __func__);
return;
}
/* Particularly ugly: this is guaranteed to break, if image->bo is
not of the required size for a miptree. */
radeon_bo_unref(t->mt->bo);
radeon_bo_ref(image->bo);
t->mt->bo = image->bo;
if (!radeon_miptree_matches_image(t->mt, &radeonImage->base.Base))
fprintf(stderr, "miptree doesn't match image\n");
}
mesa_format _radeon_texformat_rgba8888 = MESA_FORMAT_NONE;
mesa_format _radeon_texformat_argb8888 = MESA_FORMAT_NONE;
mesa_format _radeon_texformat_rgb565 = MESA_FORMAT_NONE;
mesa_format _radeon_texformat_argb4444 = MESA_FORMAT_NONE;
mesa_format _radeon_texformat_argb1555 = MESA_FORMAT_NONE;
mesa_format _radeon_texformat_al88 = MESA_FORMAT_NONE;
/*@}*/
static void
radeonInitTextureFormats(void)
{
if (_mesa_little_endian()) {
_radeon_texformat_rgba8888 = MESA_FORMAT_A8B8G8R8_UNORM;
_radeon_texformat_argb8888 = MESA_FORMAT_B8G8R8A8_UNORM;
_radeon_texformat_rgb565 = MESA_FORMAT_B5G6R5_UNORM;
_radeon_texformat_argb4444 = MESA_FORMAT_B4G4R4A4_UNORM;
_radeon_texformat_argb1555 = MESA_FORMAT_B5G5R5A1_UNORM;
_radeon_texformat_al88 = MESA_FORMAT_L8A8_UNORM;
}
else {
_radeon_texformat_rgba8888 = MESA_FORMAT_R8G8B8A8_UNORM;
_radeon_texformat_argb8888 = MESA_FORMAT_A8R8G8B8_UNORM;
_radeon_texformat_rgb565 = MESA_FORMAT_R5G6B5_UNORM;
_radeon_texformat_argb4444 = MESA_FORMAT_A4R4G4B4_UNORM;
_radeon_texformat_argb1555 = MESA_FORMAT_A1R5G5B5_UNORM;
_radeon_texformat_al88 = MESA_FORMAT_A8L8_UNORM;
}
}
void
radeon_init_common_texture_funcs(radeonContextPtr radeon,
struct dd_function_table *functions)
{
functions->NewTextureImage = radeonNewTextureImage;
functions->DeleteTextureImage = radeonDeleteTextureImage;
functions->AllocTextureImageBuffer = radeonAllocTextureImageBuffer;
functions->FreeTextureImageBuffer = radeonFreeTextureImageBuffer;
functions->MapTextureImage = radeon_map_texture_image;
functions->UnmapTextureImage = radeon_unmap_texture_image;
functions->ChooseTextureFormat = radeonChooseTextureFormat_mesa;
functions->CopyTexSubImage = radeonCopyTexSubImage;
functions->Bitmap = _mesa_meta_Bitmap;
functions->EGLImageTargetTexture2D = radeon_image_target_texture_2d;
radeonInitTextureFormats();
}
static radeon_mipmap_tree *radeon_miptree_create_for_teximage(radeonContextPtr rmesa,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
radeonTexObj *t = radeon_tex_obj(texObj);
GLuint firstLevel;
GLuint lastLevel;
int width, height, depth;
int i;
width = texImage->Width;
height = texImage->Height;
depth = texImage->Depth;
if (texImage->Level > texObj->BaseLevel &&
(width == 1 ||
(texObj->Target != GL_TEXTURE_1D && height == 1) ||
(texObj->Target == GL_TEXTURE_3D && depth == 1))) {
/* For this combination, we're at some lower mipmap level and
* some important dimension is 1. We can't extrapolate up to a
* likely base level width/height/depth for a full mipmap stack
* from this info, so just allocate this one level.
*/
firstLevel = texImage->Level;
lastLevel = texImage->Level;
} else {
if (texImage->Level < texObj->BaseLevel)
firstLevel = 0;
else
firstLevel = texObj->BaseLevel;
for (i = texImage->Level; i > firstLevel; i--) {
width <<= 1;
if (height != 1)
height <<= 1;
if (depth != 1)
depth <<= 1;
}
if ((texObj->Sampler.MinFilter == GL_NEAREST ||
texObj->Sampler.MinFilter == GL_LINEAR) &&
texImage->Level == firstLevel) {
lastLevel = firstLevel;
} else {
lastLevel = firstLevel + _mesa_logbase2(MAX2(MAX2(width, height), depth));
}
}
return radeon_miptree_create(rmesa, texObj->Target,
texImage->TexFormat, firstLevel, lastLevel - firstLevel + 1,
width, height, depth,
t->tile_bits);
}