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#include "texobj.h"
#include "intel_context.h"
#include "state_tracker/st_mipmap_tree.h"
#include "intel_tex.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
static GLboolean
intelIsTextureResident(GLcontext * ctx, struct gl_texture_object *texObj)
{
#if 0
struct intel_context *intel = intel_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
return
stObj->mt &&
stObj->mt->region &&
intel_is_region_resident(intel, stObj->mt->region);
#endif
return 1;
}
static struct gl_texture_image *
intelNewTextureImage(GLcontext * ctx)
{
DBG("%s\n", __FUNCTION__);
(void) ctx;
return (struct gl_texture_image *) CALLOC_STRUCT(st_texture_image);
}
static struct gl_texture_object *
intelNewTextureObject(GLcontext * ctx, GLuint name, GLenum target)
{
struct st_texture_object *obj = CALLOC_STRUCT(st_texture_object);
DBG("%s\n", __FUNCTION__);
_mesa_initialize_texture_object(&obj->base, name, target);
return &obj->base;
}
static void
intelDeleteTextureObject(GLcontext *ctx,
struct gl_texture_object *texObj)
{
struct intel_context *intel = intel_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
if (stObj->mt)
st_miptree_release(intel->pipe, &stObj->mt);
_mesa_delete_texture_object(ctx, texObj);
}
static void
intelFreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage)
{
struct intel_context *intel = intel_context(ctx);
struct st_texture_image *stImage = st_texture_image(texImage);
DBG("%s\n", __FUNCTION__);
if (stImage->mt) {
st_miptree_release(intel->pipe, &stImage->mt);
}
if (texImage->Data) {
free(texImage->Data);
texImage->Data = NULL;
}
}
/* ================================================================
* From linux kernel i386 header files, copes with odd sizes better
* than COPY_DWORDS would:
* XXX Put this in src/mesa/main/imports.h ???
*/
#if defined(i386) || defined(__i386__)
static INLINE void *
__memcpy(void *to, const void *from, size_t n)
{
int d0, d1, d2;
__asm__ __volatile__("rep ; movsl\n\t"
"testb $2,%b4\n\t"
"je 1f\n\t"
"movsw\n"
"1:\ttestb $1,%b4\n\t"
"je 2f\n\t"
"movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2)
:"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from)
:"memory");
return (to);
}
#else
#define __memcpy(a,b,c) memcpy(a,b,c)
#endif
/* The system memcpy (at least on ubuntu 5.10) has problems copying
* to agp (writecombined) memory from a source which isn't 64-byte
* aligned - there is a 4x performance falloff.
*
* The x86 __memcpy is immune to this but is slightly slower
* (10%-ish) than the system memcpy.
*
* The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
* isn't much faster than x86_memcpy for agp copies.
*
* TODO: switch dynamically.
*/
static void *
do_memcpy(void *dest, const void *src, size_t n)
{
if ((((unsigned) src) & 63) || (((unsigned) dest) & 63)) {
return __memcpy(dest, src, n);
}
else
return memcpy(dest, src, n);
}
void
intelInitTextureFuncs(struct dd_function_table *functions)
{
functions->ChooseTextureFormat = intelChooseTextureFormat;
functions->TexImage1D = intelTexImage1D;
functions->TexImage2D = intelTexImage2D;
functions->TexImage3D = intelTexImage3D;
functions->TexSubImage1D = intelTexSubImage1D;
functions->TexSubImage2D = intelTexSubImage2D;
functions->TexSubImage3D = intelTexSubImage3D;
functions->CopyTexImage1D = intelCopyTexImage1D;
functions->CopyTexImage2D = intelCopyTexImage2D;
functions->CopyTexSubImage1D = intelCopyTexSubImage1D;
functions->CopyTexSubImage2D = intelCopyTexSubImage2D;
functions->GetTexImage = intelGetTexImage;
/* compressed texture functions */
functions->CompressedTexImage2D = intelCompressedTexImage2D;
functions->GetCompressedTexImage = intelGetCompressedTexImage;
functions->NewTextureObject = intelNewTextureObject;
functions->NewTextureImage = intelNewTextureImage;
functions->DeleteTexture = intelDeleteTextureObject;
functions->FreeTexImageData = intelFreeTextureImageData;
functions->UpdateTexturePalette = 0;
functions->IsTextureResident = intelIsTextureResident;
functions->TextureMemCpy = do_memcpy;
}
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