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path: root/src/mesa/drivers/dri/i915-tex/intel_tex.c
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Diffstat (limited to 'src/mesa/drivers/dri/i915-tex/intel_tex.c')
-rw-r--r--src/mesa/drivers/dri/i915-tex/intel_tex.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915-tex/intel_tex.c b/src/mesa/drivers/dri/i915-tex/intel_tex.c
new file mode 100644
index 00000000000..8d957635763
--- /dev/null
+++ b/src/mesa/drivers/dri/i915-tex/intel_tex.c
@@ -0,0 +1,298 @@
+#include "texobj.h"
+#include "intel_context.h"
+#include "intel_mipmap_tree.h"
+#include "intel_tex.h"
+
+
+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 )
+{
+ (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);
+
+ _mesa_initialize_texture_object(&obj->base, name, target);
+
+ return &obj->base;
+}
+
+
+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);
+
+ if (intelImage->mt) {
+ intel_miptree_release(intel, &intelImage->mt);
+ }
+
+ if (texImage->Data) {
+ free(texImage->Data);
+ texImage->Data = NULL;
+ }
+}
+
+
+#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));
+}
+
+
+/* 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 )
+{
+<<<<<<< intel_tex.c
+
+ if (!image || !image->Data)
+ return;
+
+ if (image->Depth == 1 && image->IsClientData) {
+ if (INTEL_DEBUG & DEBUG_TEXTURE)
+ fprintf(stderr, "Blit uploading\n");
+
+ /* Do it with a blit.
+ */
+ intelEmitCopyBlitLocked( intel,
+ image->TexFormat->TexelBytes,
+ image->RowStride, /* ? */
+ intelGetMemoryOffsetMESA( NULL, 0, image->Data ),
+ t->Pitch / image->TexFormat->TexelBytes,
+ intelGetMemoryOffsetMESA( NULL, 0, t->BufAddr + offset ),
+ 0, 0,
+ 0, 0,
+ image->Width,
+ image->Height);
+ }
+ else if (image->IsCompressed) {
+ GLuint row_len = image->Width * 2;
+ GLubyte *dst = (GLubyte *)(t->BufAddr + offset);
+ GLubyte *src = (GLubyte *)image->Data;
+ GLuint j;
+
+ if (INTEL_DEBUG & DEBUG_TEXTURE)
+ fprintf(stderr,
+ "Upload image %dx%dx%d offset %xm row_len %x "
+ "pitch %x depth_pitch %x\n",
+ image->Width, image->Height, image->Depth, offset,
+ row_len, t->Pitch, t->depth_pitch);
+
+ switch (image->InternalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ for (j = 0 ; j < image->Height/4 ; j++, dst += (t->Pitch)) {
+ __memcpy(dst, src, row_len );
+ src += row_len;
+ }
+ break;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ for (j = 0 ; j < image->Height/4 ; j++, dst += (t->Pitch)) {
+ __memcpy(dst, src, (image->Width*4) );
+ src += image->Width*4;
+ }
+ break;
+ default:
+ fprintf(stderr,"Internal Compressed format not supported %d\n", image->InternalFormat);
+ break;
+ }
+ }
+ /* Time for another vtbl entry:
+ */
+ else if (intel->intelScreen->deviceID == PCI_CHIP_I945_G ||
+ intel->intelScreen->deviceID == PCI_CHIP_I945_GM) {
+ GLuint row_len = image->Width * image->TexFormat->TexelBytes;
+ GLubyte *dst = (GLubyte *)(t->BufAddr + offset);
+ GLubyte *src = (GLubyte *)image->Data;
+ GLuint d, j;
+
+ if (INTEL_DEBUG & DEBUG_TEXTURE)
+ fprintf(stderr,
+ "Upload image %dx%dx%d offset %xm row_len %x "
+ "pitch %x depth_pitch %x\n",
+ image->Width, image->Height, image->Depth, offset,
+ row_len, t->Pitch, t->depth_pitch);
+
+ if (row_len == t->Pitch) {
+ memcpy( dst, src, row_len * image->Height * image->Depth );
+ }
+ else {
+ GLuint x = 0, y = 0;
+
+ for (d = 0 ; d < image->Depth ; d++) {
+ GLubyte *dst0 = dst + x + y * t->Pitch;
+
+ for (j = 0 ; j < image->Height ; j++) {
+ __memcpy(dst0, src, row_len );
+ src += row_len;
+ dst0 += t->Pitch;
+ }
+
+ x += MIN2(4, row_len); /* Guess: 4 byte minimum alignment */
+ if (x > t->Pitch) {
+ x = 0;
+ y += image->Height;
+ }
+ }
+ }
+
+ }
+ else {
+ GLuint row_len = image->Width * image->TexFormat->TexelBytes;
+ GLubyte *dst = (GLubyte *)(t->BufAddr + offset);
+ GLubyte *src = (GLubyte *)image->Data;
+ GLuint d, j;
+
+ if (INTEL_DEBUG & DEBUG_TEXTURE)
+ fprintf(stderr,
+ "Upload image %dx%dx%d offset %xm row_len %x "
+ "pitch %x depth_pitch %x\n",
+ image->Width, image->Height, image->Depth, offset,
+ row_len, t->Pitch, t->depth_pitch);
+
+ if (row_len == t->Pitch) {
+ for (d = 0; d < image->Depth; d++) {
+ memcpy( dst, src, t->Pitch * image->Height );
+ dst += t->depth_pitch;
+ src += row_len * image->Height;
+ }
+ }
+ else {
+ for (d = 0 ; d < image->Depth ; d++) {
+ for (j = 0 ; j < image->Height ; j++) {
+ __memcpy(dst, src, row_len );
+ src += row_len;
+ dst += t->Pitch;
+ }
+
+ dst += t->depth_pitch - (t->Pitch * image->Height);
+ }
+ }
+ }
+=======
+ if ( (((unsigned)src) & 63) ||
+ (((unsigned)dest) & 63)) {
+ return __memcpy(dest, src, n);
+ }
+ else
+ return memcpy(dest, src, n);
+>>>>>>> 1.10.2.8
+}
+
+
+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;
+}
+
+
+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->NewTextureObject = intelNewTextureObject;
+ functions->NewTextureImage = intelNewTextureImage;
+ functions->DeleteTexture = _mesa_delete_texture_object;
+ functions->FreeTexImageData = intelFreeTextureImageData;
+ functions->UpdateTexturePalette = 0;
+ functions->IsTextureResident = intelIsTextureResident;
+
+ if (INTEL_DEBUG & DEBUG_BUFMGR)
+ functions->TextureMemCpy = timed_memcpy;
+ else
+ functions->TextureMemCpy = do_memcpy;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 23:23:32 +0000