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#include "swrast/swrast.h"
#include "main/texobj.h"
#include "main/teximage.h"
#include "main/mipmap.h"
#include "intel_context.h"
#include "intel_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 intel_texture_object *intelObj = intel_texture_object(texObj);
return
intelObj->mt &&
intelObj->mt->region &&
intel_is_region_resident(intel, intelObj->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(intel_texture_image);
}
static struct gl_texture_object *
intelNewTextureObject(GLcontext * ctx, GLuint name, GLenum target)
{
struct intel_texture_object *obj = CALLOC_STRUCT(intel_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 intel_texture_object *intelObj = intel_texture_object(texObj);
if (intelObj->mt)
intel_miptree_release(intel, &intelObj->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 intel_texture_image *intelImage = intel_texture_image(texImage);
DBG("%s\n", __FUNCTION__);
if (intelImage->mt) {
intel_miptree_release(intel, &intelImage->mt);
}
if (texImage->Data) {
_mesa_free_texmemory(texImage->Data);
texImage->Data = NULL;
}
}
/* 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 long) src) & 63) || (((unsigned long) dest) & 63)) {
return __memcpy(dest, src, n);
}
else
return memcpy(dest, src, n);
}
#if DO_DEBUG && !defined(__ia64__)
#ifndef __x86_64__
static unsigned
fastrdtsc(void)
{
unsigned eax;
__asm__ volatile ("\t"
"pushl %%ebx\n\t"
"cpuid\n\t" ".byte 0x0f, 0x31\n\t"
"popl %%ebx\n":"=a" (eax)
:"0"(0)
:"ecx", "edx", "cc");
return eax;
}
#else
static unsigned
fastrdtsc(void)
{
unsigned eax;
__asm__ volatile ("\t" "cpuid\n\t" ".byte 0x0f, 0x31\n\t":"=a" (eax)
:"0"(0)
:"ecx", "edx", "ebx", "cc");
return eax;
}
#endif
static unsigned
time_diff(unsigned t, unsigned t2)
{
return ((t < t2) ? t2 - t : 0xFFFFFFFFU - (t - t2 - 1));
}
static void *
timed_memcpy(void *dest, const void *src, size_t n)
{
void *ret;
unsigned t1, t2;
double rate;
if ((((unsigned) src) & 63) || (((unsigned) dest) & 63))
_mesa_printf("Warning - non-aligned texture copy!\n");
t1 = fastrdtsc();
ret = do_memcpy(dest, src, n);
t2 = fastrdtsc();
rate = time_diff(t1, t2);
rate /= (double) n;
_mesa_printf("timed_memcpy: %u %u --> %f clocks/byte\n", t1, t2, rate);
return ret;
}
#endif /* DO_DEBUG */
/**
* Generate new mipmap data from BASE+1 to BASE+p (the minimally-sized mipmap
* level).
*
* The texture object's miptree must be mapped.
*
* It would be really nice if this was just called by Mesa whenever mipmaps
* needed to be regenerated, rather than us having to remember to do so in
* each texture image modification path.
*
* This function should also include an accelerated path.
*/
void
intel_generate_mipmap(GLcontext *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_object *intelObj = intel_texture_object(texObj);
GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
int face, i;
_mesa_generate_mipmap(ctx, target, texObj);
/* Update the level information in our private data in the new images, since
* it didn't get set as part of a normal TexImage path.
*/
for (face = 0; face < nr_faces; face++) {
for (i = texObj->BaseLevel + 1; i < texObj->MaxLevel; i++) {
struct intel_texture_image *intelImage;
intelImage = intel_texture_image(texObj->Image[face][i]);
if (intelImage == NULL)
break;
intelImage->level = i;
intelImage->face = face;
/* Unreference the miptree to signal that the new Data is a bare
* pointer from mesa.
*/
intel_miptree_release(intel, &intelImage->mt);
}
}
}
static void intelGenerateMipmap(GLcontext *ctx, GLenum target, struct gl_texture_object *texObj)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_object *intelObj = intel_texture_object(texObj);
intel_tex_map_level_images(intel, intelObj, texObj->BaseLevel);
intel_generate_mipmap(ctx, target, texObj);
intel_tex_unmap_level_images(intel, intelObj, texObj->BaseLevel);
}
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;
functions->GenerateMipmap = intelGenerateMipmap;
/* compressed texture functions */
functions->CompressedTexImage2D = intelCompressedTexImage2D;
functions->CompressedTexSubImage2D = intelCompressedTexSubImage2D;
functions->GetCompressedTexImage = intelGetCompressedTexImage;
functions->NewTextureObject = intelNewTextureObject;
functions->NewTextureImage = intelNewTextureImage;
functions->DeleteTexture = intelDeleteTextureObject;
functions->FreeTexImageData = intelFreeTextureImageData;
functions->UpdateTexturePalette = 0;
functions->IsTextureResident = intelIsTextureResident;
#if DO_DEBUG && !defined(__ia64__)
if (INTEL_DEBUG & DEBUG_BUFMGR)
functions->TextureMemCpy = timed_memcpy;
else
#endif
functions->TextureMemCpy = do_memcpy;
}
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