1 files changed, 200 insertions, 394 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index e2329f04ec..e5afff0d61 100644
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -47,7 +47,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "r300_context.h"
 #include "r300_state.h"
 #include "r300_ioctl.h"
-#include "radeon_ioctl.h"
+#include "radeon_mipmap_tree.h"
 #include "r300_tex.h"
 #include "r300_reg.h"
 
@@ -143,13 +143,12 @@ void r300SetDepthTexMode(struct gl_texture_object *tObj)
 		},
 	};
 	const GLuint *format;
-	r300TexObjPtr t;
+	radeonTexObjPtr t;
 
 	if (!tObj)
 		return;
 
-	t = (r300TexObjPtr) tObj->DriverData;
-
+	t = radeon_tex_obj(tObj);
 
 	switch (tObj->Image[0][tObj->BaseLevel]->TexFormat->MesaFormat) {
 	case MESA_FORMAT_Z16:
@@ -171,13 +170,13 @@ void r300SetDepthTexMode(struct gl_texture_object *tObj)
 
 	switch (tObj->DepthMode) {
 	case GL_LUMINANCE:
-		t->format = format[0];
+		t->pp_txformat = format[0];
 		break;
 	case GL_INTENSITY:
-		t->format = format[1];
+		t->pp_txformat = format[1];
 		break;
 	case GL_ALPHA:
-		t->format = format[2];
+		t->pp_txformat = format[2];
 		break;
 	default:
 		/* Error...which should have already been caught by higher
@@ -190,479 +189,286 @@ void r300SetDepthTexMode(struct gl_texture_object *tObj)
 
 
 /**
- * Compute sizes and fill in offset and blit information for the given
- * image (determined by \p face and \p level).
- *
- * \param curOffset points to the offset at which the image is to be stored
- * and is updated by this function according to the size of the image.
- */
-static void compute_tex_image_offset(
-	struct gl_texture_object *tObj,
-	GLuint face,
-	GLint level,
-	GLint* curOffset)
-{
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-	const struct gl_texture_image* texImage;
-	GLuint blitWidth = R300_BLIT_WIDTH_BYTES;
-	GLuint texelBytes;
-	GLuint size;
-
-	texImage = tObj->Image[0][level + t->base.firstLevel];
-	if (!texImage)
-		return;
-
-	texelBytes = texImage->TexFormat->TexelBytes;
-
-	/* find image size in bytes */
-	if (texImage->IsCompressed) {
-		if ((t->format & R300_TX_FORMAT_DXT1) ==
-			R300_TX_FORMAT_DXT1) {
-			// fprintf(stderr,"DXT 1 %d %08X\n", texImage->Width, t->format);
-			if ((texImage->Width + 3) < 8)	/* width one block */
-				size = texImage->CompressedSize * 4;
-			else if ((texImage->Width + 3) < 16)
-				size = texImage->CompressedSize * 2;
-			else
-				size = texImage->CompressedSize;
-		} else {
-			/* DXT3/5, 16 bytes per block */
-			WARN_ONCE
-				("DXT 3/5 suffers from multitexturing problems!\n");
-			// fprintf(stderr,"DXT 3/5 %d\n", texImage->Width);
-			if ((texImage->Width + 3) < 8)
-				size = texImage->CompressedSize * 2;
-			else
-				size = texImage->CompressedSize;
-		}
-	} else if (tObj->Target == GL_TEXTURE_RECTANGLE_NV) {
-		size =
-			((texImage->Width * texelBytes +
-			63) & ~63) * texImage->Height;
-		blitWidth = 64 / texelBytes;
-	} else if (t->tile_bits & R300_TXO_MICRO_TILE) {
-		/* tile pattern is 16 bytes x2. mipmaps stay 32 byte aligned,
-			though the actual offset may be different (if texture is less than
-			32 bytes width) to the untiled case */
-		int w = (texImage->Width * texelBytes * 2 + 31) & ~31;
-		size =
-			(w * ((texImage->Height + 1) / 2)) *
-			texImage->Depth;
-		blitWidth = MAX2(texImage->Width, 64 / texelBytes);
-	} else {
-		int w = (texImage->Width * texelBytes + 31) & ~31;
-		size = w * texImage->Height * texImage->Depth;
-		blitWidth = MAX2(texImage->Width, 64 / texelBytes);
-	}
-	assert(size > 0);
-
-	if (RADEON_DEBUG & DEBUG_TEXTURE)
-		fprintf(stderr, "w=%d h=%d d=%d tb=%d intFormat=%d\n",
-			texImage->Width, texImage->Height,
-			texImage->Depth,
-			texImage->TexFormat->TexelBytes,
-			texImage->InternalFormat);
-
-	/* All images are aligned to a 32-byte offset */
-	*curOffset = (*curOffset + 0x1f) & ~0x1f;
-
-	if (texelBytes) {
-		/* fix x and y coords up later together with offset */
-		t->image[face][level].x = *curOffset;
-		t->image[face][level].y = 0;
-		t->image[face][level].width =
-			MIN2(size / texelBytes, blitWidth);
-		t->image[face][level].height =
-			(size / texelBytes) / t->image[face][level].width;
-	} else {
-		t->image[face][level].x = *curOffset % R300_BLIT_WIDTH_BYTES;
-		t->image[face][level].y = *curOffset / R300_BLIT_WIDTH_BYTES;
-		t->image[face][level].width =
-			MIN2(size, R300_BLIT_WIDTH_BYTES);
-		t->image[face][level].height = size / t->image[face][level].width;
-	}
-
-	if (RADEON_DEBUG & DEBUG_TEXTURE)
-		fprintf(stderr,
-			"level %d, face %d: %dx%d x=%d y=%d w=%d h=%d size=%d at %d\n",
-			level, face, texImage->Width, texImage->Height,
-			t->image[face][level].x, t->image[face][level].y,
-			t->image[face][level].width, t->image[face][level].height,
-			size, *curOffset);
-
-	*curOffset += size;
-}
-
-
-
-/**
- * This function computes the number of bytes of storage needed for
- * the given texture object (all mipmap levels, all cube faces).
- * The \c image[face][level].x/y/width/height parameters for upload/blitting
- * are computed here.  \c filter, \c format, etc. will be set here
- * too.
+ * Compute the cached hardware register values for the given texture object.
  *
  * \param rmesa Context pointer
- * \param tObj GL texture object whose images are to be posted to
- *                 hardware state.
+ * \param t the r300 texture object
  */
-static void r300SetTexImages(r300ContextPtr rmesa,
-			     struct gl_texture_object *tObj)
+static void setup_hardware_state(r300ContextPtr rmesa, radeonTexObj *t)
 {
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-	const struct gl_texture_image *baseImage =
-	    tObj->Image[0][tObj->BaseLevel];
-	GLint curOffset;
-	GLint i, texelBytes;
-	GLint numLevels;
-	GLint log2Width, log2Height, log2Depth;
-
-	/* Set the hardware texture format
-	 */
+	const struct gl_texture_image *firstImage =
+	    t->base.Image[0][t->mt->firstLevel];
+
 	if (!t->image_override
-	    && VALID_FORMAT(baseImage->TexFormat->MesaFormat)) {
-		if (baseImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
-			r300SetDepthTexMode(tObj);
+	    && VALID_FORMAT(firstImage->TexFormat->MesaFormat)) {
+		if (firstImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
+			r300SetDepthTexMode(&t->base);
 		} else {
-			t->format = tx_table[baseImage->TexFormat->MesaFormat].format;
+			t->pp_txformat = tx_table[firstImage->TexFormat->MesaFormat].format;
 		}
 
-		t->filter |= tx_table[baseImage->TexFormat->MesaFormat].filter;
+		t->pp_txfilter |= tx_table[firstImage->TexFormat->MesaFormat].filter;
 	} else if (!t->image_override) {
 		_mesa_problem(NULL, "unexpected texture format in %s",
 			      __FUNCTION__);
 		return;
 	}
 
-	texelBytes = baseImage->TexFormat->TexelBytes;
-
-	/* Compute which mipmap levels we really want to send to the hardware.
-	 */
-	driCalculateTextureFirstLastLevel((driTextureObject *) t);
-	log2Width = tObj->Image[0][t->base.firstLevel]->WidthLog2;
-	log2Height = tObj->Image[0][t->base.firstLevel]->HeightLog2;
-	log2Depth = tObj->Image[0][t->base.firstLevel]->DepthLog2;
-
-	numLevels = t->base.lastLevel - t->base.firstLevel + 1;
-
-	assert(numLevels <= RADEON_MAX_TEXTURE_LEVELS);
-
-	/* Calculate mipmap offsets and dimensions for blitting (uploading)
-	 * The idea is that we lay out the mipmap levels within a block of
-	 * memory organized as a rectangle of width BLIT_WIDTH_BYTES.
-	 */
 	t->tile_bits = 0;
 
-	/* figure out if this texture is suitable for tiling. */
-#if 0				/* Disabled for now */
-	if (texelBytes) {
-		if ((tObj->Target != GL_TEXTURE_RECTANGLE_NV) &&
-		    /* texrect might be able to use micro tiling too in theory? */
-		    (baseImage->Height > 1)) {
-
-			/* allow 32 (bytes) x 1 mip (which will use two times the space
-			   the non-tiled version would use) max if base texture is large enough */
-			if ((numLevels == 1) ||
-			    (((baseImage->Width * texelBytes /
-			       baseImage->Height) <= 32)
-			     && (baseImage->Width * texelBytes > 64))
-			    ||
-			    ((baseImage->Width * texelBytes /
-			      baseImage->Height) <= 16)) {
-				t->tile_bits |= R300_TXO_MICRO_TILE;
-			}
-		}
-
-		if (tObj->Target != GL_TEXTURE_RECTANGLE_NV) {
-			/* we can set macro tiling even for small textures, they will be untiled anyway */
-			t->tile_bits |= R300_TXO_MACRO_TILE;
-		}
-	}
-#endif
-
-	curOffset = 0;
-
-	if (tObj->Target == GL_TEXTURE_CUBE_MAP) {
-		ASSERT(log2Width == log2Height);
-		t->format |= R300_TX_FORMAT_CUBIC_MAP;
+	if (t->base.Target == GL_TEXTURE_CUBE_MAP)
+		t->pp_txformat |= R300_TX_FORMAT_CUBIC_MAP;
+	if (t->base.Target == GL_TEXTURE_3D)
+		t->pp_txformat |= R300_TX_FORMAT_3D;
 
-		for(i = 0; i < numLevels; i++) {
-			GLuint face;
-			for(face = 0; face < 6; face++)
-				compute_tex_image_offset(tObj, face, i, &curOffset);
-		}
-	} else {
-		if (tObj->Target == GL_TEXTURE_3D)
-                	t->format |= R300_TX_FORMAT_3D;
+	t->pp_txsize = (((firstImage->Width - 1) << R300_TX_WIDTHMASK_SHIFT)
+			| ((firstImage->Height - 1) << R300_TX_HEIGHTMASK_SHIFT)
+			| ((firstImage->DepthLog2) << R300_TX_DEPTHMASK_SHIFT)
+			| ((t->mt->lastLevel - t->mt->firstLevel) << R300_TX_MAX_MIP_LEVEL_SHIFT));
 
-		for (i = 0; i < numLevels; i++)
-			compute_tex_image_offset(tObj, 0, i, &curOffset);
-	}
-
-	/* Align the total size of texture memory block.
-	 */
-	t->base.totalSize =
-	    (curOffset + RADEON_OFFSET_MASK) & ~RADEON_OFFSET_MASK;
-
-	t->size =
-	    (((tObj->Image[0][t->base.firstLevel]->Width -
-	       1) << R300_TX_WIDTHMASK_SHIFT)
-	     | ((tObj->Image[0][t->base.firstLevel]->Height - 1) <<
-		R300_TX_HEIGHTMASK_SHIFT)
-	     | ((tObj->Image[0][t->base.firstLevel]->DepthLog2) <<
-		R300_TX_DEPTHMASK_SHIFT))
-	    | ((numLevels - 1) << R300_TX_MAX_MIP_LEVEL_SHIFT);
-
-	t->pitch = 0;
-
-	/* Only need to round to nearest 32 for textures, but the blitter
-	 * requires 64-byte aligned pitches, and we may/may not need the
-	 * blitter.   NPOT only!
-	 */
-	if (baseImage->IsCompressed) {
-		t->pitch |=
-		    (tObj->Image[0][t->base.firstLevel]->Width + 63) & ~(63);
-	} else if (tObj->Target == GL_TEXTURE_RECTANGLE_NV) {
-		unsigned int align = (64 / texelBytes) - 1;
-		t->pitch |= ((tObj->Image[0][t->base.firstLevel]->Width *
-			     texelBytes) + 63) & ~(63);
-		t->size |= R300_TX_SIZE_TXPITCH_EN;
+	if (t->base.Target == GL_TEXTURE_RECTANGLE_NV) {
+		unsigned int align = (64 / t->mt->bpp) - 1;
+		t->pp_txsize |= R300_TX_SIZE_TXPITCH_EN;
 		if (!t->image_override)
-			t->pitch_reg =
-			    (((tObj->Image[0][t->base.firstLevel]->Width) +
-			      align) & ~align) - 1;
-	} else {
-		t->pitch |=
-		    ((tObj->Image[0][t->base.firstLevel]->Width *
-		      texelBytes) + 63) & ~(63);
+			t->pp_txpitch = ((firstImage->Width + align) & ~align) - 1;
 	}
 
 	if (rmesa->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515) {
-	    if (tObj->Image[0][t->base.firstLevel]->Width > 2048)
-		t->pitch_reg |= R500_TXWIDTH_BIT11;
-	    if (tObj->Image[0][t->base.firstLevel]->Height > 2048)
-		t->pitch_reg |= R500_TXHEIGHT_BIT11;
+	    if (firstImage->Width > 2048)
+		t->pp_txpitch |= R500_TXWIDTH_BIT11;
+	    if (firstImage->Height > 2048)
+		t->pp_txpitch |= R500_TXHEIGHT_BIT11;
 	}
 }
 
-/* ================================================================
- * Texture unit state management
+/**
+ * Ensure the given texture is ready for rendering.
+ *
+ * Mostly this means populating the texture object's mipmap tree.
  */
-
-static GLboolean r300EnableTexture2D(GLcontext * ctx, int unit)
+static GLboolean r300_validate_texture(GLcontext * ctx, struct gl_texture_object *texObj)
 {
 	r300ContextPtr rmesa = R300_CONTEXT(ctx);
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-	struct gl_texture_object *tObj = texUnit->_Current;
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
+	radeonTexObj *t = radeon_tex_obj(texObj);
 
-	ASSERT(tObj->Target == GL_TEXTURE_2D || tObj->Target == GL_TEXTURE_1D);
+	if (!radeon_validate_texture_miptree(ctx, texObj))
+		return GL_FALSE;
 
-	if (t->base.dirty_images[0]) {
-		R300_FIREVERTICES(rmesa);
-
-		r300SetTexImages(rmesa, tObj);
-		r300UploadTexImages(rmesa, (r300TexObjPtr) tObj->DriverData, 0);
-		if (!t->base.memBlock && !t->image_override)
-			return GL_FALSE;
-	}
+	/* Configure the hardware registers (more precisely, the cached version
+	 * of the hardware registers). */
+	setup_hardware_state(rmesa, t);
 
+	t->validated = GL_TRUE;
 	return GL_TRUE;
 }
 
-static GLboolean r300EnableTexture3D(GLcontext * ctx, int unit)
+
+/**
+ * Ensure all enabled and complete textures are uploaded along with any buffers being used.
+ */
+GLboolean r300ValidateBuffers(GLcontext * ctx)
 {
 	r300ContextPtr rmesa = R300_CONTEXT(ctx);
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-	struct gl_texture_object *tObj = texUnit->_Current;
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-
-	ASSERT(tObj->Target == GL_TEXTURE_3D);
-
-	/* r300 does not support mipmaps for 3D textures. */
-	if ((tObj->MinFilter != GL_NEAREST) && (tObj->MinFilter != GL_LINEAR)) {
-		return GL_FALSE;
+	struct radeon_cs_space_check bos[16];
+	struct radeon_renderbuffer *rrb;
+	int num_bo = 0;
+	int i;
+	int flushed = 0, ret;
+again:
+	num_bo = 0;
+
+	rrb = radeon_get_colorbuffer(&rmesa->radeon);
+	/* color buffer */
+	if (rrb && rrb->bo) {
+		bos[num_bo].bo = rrb->bo;
+		bos[num_bo].read_domains = 0;
+		bos[num_bo].write_domain = RADEON_GEM_DOMAIN_VRAM;
+		bos[num_bo].new_accounted = 0;
+		num_bo++;
 	}
 
-	if (t->base.dirty_images[0]) {
-		R300_FIREVERTICES(rmesa);
-		r300SetTexImages(rmesa, tObj);
-		r300UploadTexImages(rmesa, (r300TexObjPtr) tObj->DriverData, 0);
-		if (!t->base.memBlock)
-			return GL_FALSE;
+	/* depth buffer */
+	rrb = radeon_get_depthbuffer(&rmesa->radeon);
+	/* color buffer */
+	if (rrb && rrb->bo) {
+		bos[num_bo].bo = rrb->bo;
+		bos[num_bo].read_domains = 0;
+		bos[num_bo].write_domain = RADEON_GEM_DOMAIN_VRAM;
+		bos[num_bo].new_accounted = 0;
+		num_bo++;
 	}
+	
+	for (i = 0; i < ctx->Const.MaxTextureImageUnits; ++i) {
+		radeonTexObj *t;
 
-	return GL_TRUE;
-}
-
-static GLboolean r300EnableTextureCube(GLcontext * ctx, int unit)
-{
-	r300ContextPtr rmesa = R300_CONTEXT(ctx);
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-	struct gl_texture_object *tObj = texUnit->_Current;
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-	GLuint face;
-
-	ASSERT(tObj->Target == GL_TEXTURE_CUBE_MAP);
-
-	if (t->base.dirty_images[0] || t->base.dirty_images[1] ||
-	    t->base.dirty_images[2] || t->base.dirty_images[3] ||
-	    t->base.dirty_images[4] || t->base.dirty_images[5]) {
-		/* flush */
-		R300_FIREVERTICES(rmesa);
-		/* layout memory space, once for all faces */
-		r300SetTexImages(rmesa, tObj);
-	}
+		if (!ctx->Texture.Unit[i]._ReallyEnabled)
+			continue;
 
-	/* upload (per face) */
-	for (face = 0; face < 6; face++) {
-		if (t->base.dirty_images[face]) {
-			r300UploadTexImages(rmesa,
-					    (r300TexObjPtr) tObj->DriverData,
-					    face);
+		if (!r300_validate_texture(ctx, ctx->Texture.Unit[i]._Current)) {
+			_mesa_warning(ctx,
+				      "failed to validate texture for unit %d.\n",
+				      i);
 		}
+		t = radeon_tex_obj(ctx->Texture.Unit[i]._Current);
+		bos[num_bo].bo = t->mt->bo;
+		bos[num_bo].read_domains = RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM;
+		bos[num_bo].write_domain = 0;
+		bos[num_bo].new_accounted = 0;
+		num_bo++;
 	}
 
-	if (!t->base.memBlock) {
-		/* texmem alloc failed, use s/w fallback */
+	ret = radeon_cs_space_check(rmesa->radeon.cmdbuf.cs, bos, num_bo);
+	if (ret == RADEON_CS_SPACE_OP_TO_BIG)
 		return GL_FALSE;
-	}
-
-	return GL_TRUE;
-}
-
-static GLboolean r300EnableTextureRect(GLcontext * ctx, int unit)
-{
-	r300ContextPtr rmesa = R300_CONTEXT(ctx);
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-	struct gl_texture_object *tObj = texUnit->_Current;
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-
-	ASSERT(tObj->Target == GL_TEXTURE_RECTANGLE_NV);
-
-	if (t->base.dirty_images[0]) {
-		R300_FIREVERTICES(rmesa);
-
-		r300SetTexImages(rmesa, tObj);
-		r300UploadTexImages(rmesa, (r300TexObjPtr) tObj->DriverData, 0);
-		if (!t->base.memBlock && !t->image_override &&
-		    !rmesa->prefer_gart_client_texturing)
+	if (ret == RADEON_CS_SPACE_FLUSH) {
+		r300Flush(ctx);
+		if (flushed)
 			return GL_FALSE;
+		flushed = 1;
+		goto again;
 	}
-
 	return GL_TRUE;
 }
 
-static GLboolean r300UpdateTexture(GLcontext * ctx, int unit)
-{
-	r300ContextPtr rmesa = R300_CONTEXT(ctx);
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-	struct gl_texture_object *tObj = texUnit->_Current;
-	r300TexObjPtr t = (r300TexObjPtr) tObj->DriverData;
-
-	/* Fallback if there's a texture border */
-	if (tObj->Image[0][tObj->BaseLevel]->Border > 0)
-		return GL_FALSE;
-
-	/* Update state if this is a different texture object to last
-	 * time.
-	 */
-	if (rmesa->state.texture.unit[unit].texobj != t) {
-		if (rmesa->state.texture.unit[unit].texobj != NULL) {
-			/* The old texture is no longer bound to this texture unit.
-			 * Mark it as such.
-			 */
-
-			rmesa->state.texture.unit[unit].texobj->base.bound &=
-			    ~(1 << unit);
-		}
-
-		rmesa->state.texture.unit[unit].texobj = t;
-		t->base.bound |= (1 << unit);
-		driUpdateTextureLRU((driTextureObject *) t);	/* XXX: should be locked! */
-	}
-
-	return !t->border_fallback;
-}
-
 void r300SetTexOffset(__DRIcontext * pDRICtx, GLint texname,
 		      unsigned long long offset, GLint depth, GLuint pitch)
 {
 	r300ContextPtr rmesa = pDRICtx->driverPrivate;
 	struct gl_texture_object *tObj =
 	    _mesa_lookup_texture(rmesa->radeon.glCtx, texname);
-	r300TexObjPtr t;
+	radeonTexObjPtr t = radeon_tex_obj(tObj);
 	uint32_t pitch_val;
 
 	if (!tObj)
 		return;
 
-	t = (r300TexObjPtr) tObj->DriverData;
-
 	t->image_override = GL_TRUE;
 
 	if (!offset)
 		return;
 
-	t->offset = offset;
-	t->pitch_reg &= (1 << 13) -1;
+	t->bo = NULL;
+	t->override_offset = offset;
+	t->pp_txpitch &= (1 << 13) -1;
 	pitch_val = pitch;
 
 	switch (depth) {
 	case 32:
-		t->format = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
-		t->filter |= tx_table[2].filter;
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
+		t->pp_txfilter |= tx_table[2].filter;
 		pitch_val /= 4;
 		break;
 	case 24:
 	default:
-		t->format = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
-		t->filter |= tx_table[4].filter;
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
+		t->pp_txfilter |= tx_table[4].filter;
 		pitch_val /= 4;
 		break;
 	case 16:
-		t->format = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
-		t->filter |= tx_table[5].filter;
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
+		t->pp_txfilter |= tx_table[5].filter;
 		pitch_val /= 2;
 		break;
 	}
 	pitch_val--;
 
-	t->pitch_reg |= pitch_val;
+	t->pp_txpitch |= pitch_val;
 }
 
-static GLboolean r300UpdateTextureUnit(GLcontext * ctx, int unit)
+void r300SetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 {
-	struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-
-	if (texUnit->_ReallyEnabled & (TEXTURE_RECT_BIT)) {
-		return (r300EnableTextureRect(ctx, unit) &&
-			r300UpdateTexture(ctx, unit));
-	} else if (texUnit->_ReallyEnabled & (TEXTURE_1D_BIT | TEXTURE_2D_BIT)) {
-		return (r300EnableTexture2D(ctx, unit) &&
-			r300UpdateTexture(ctx, unit));
-	} else if (texUnit->_ReallyEnabled & (TEXTURE_3D_BIT)) {
-		return (r300EnableTexture3D(ctx, unit) &&
-			r300UpdateTexture(ctx, unit));
-	} else if (texUnit->_ReallyEnabled & (TEXTURE_CUBE_BIT)) {
-		return (r300EnableTextureCube(ctx, unit) &&
-			r300UpdateTexture(ctx, unit));
-	} else if (texUnit->_ReallyEnabled) {
-		return GL_FALSE;
-	} else {
-		return GL_TRUE;
-	}
-}
+	struct gl_texture_unit *texUnit;
+	struct gl_texture_object *texObj;
+	struct gl_texture_image *texImage;
+	struct radeon_renderbuffer *rb;
+	radeon_texture_image *rImage;
+	radeonContextPtr radeon;
+	r300ContextPtr rmesa;
+	GLframebuffer *fb;
+	radeonTexObjPtr t;
+	uint32_t pitch_val;
 
-void r300UpdateTextureState(GLcontext * ctx)
-{
-	int i;
+	target = GL_TEXTURE_RECTANGLE_ARB;
 
-	for (i = 0; i < 8; i++) {
-		if (!r300UpdateTextureUnit(ctx, i)) {
-			_mesa_warning(ctx,
-				      "failed to update texture state for unit %d.\n",
-				      i);
-		}
+	radeon = pDRICtx->driverPrivate;
+	rmesa = pDRICtx->driverPrivate;
+
+	fb = dPriv->driverPrivate;
+        texUnit = &radeon->glCtx->Texture.Unit[radeon->glCtx->Texture.CurrentUnit];
+	texObj = _mesa_select_tex_object(radeon->glCtx, texUnit, target);
+        texImage = _mesa_get_tex_image(radeon->glCtx, texObj, target, 0);
+
+	rImage = get_radeon_texture_image(texImage);
+	t = radeon_tex_obj(texObj);
+        if (t == NULL) {
+    	    return;
+    	}
+
+	radeon_update_renderbuffers(pDRICtx, dPriv);
+	/* back & depth buffer are useless free them right away */
+	rb = (void*)fb->Attachment[BUFFER_DEPTH].Renderbuffer;
+	if (rb && rb->bo) {
+		radeon_bo_unref(rb->bo);
+        rb->bo = NULL;
+	}
+	rb = (void*)fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
+	if (rb && rb->bo) {
+		radeon_bo_unref(rb->bo);
+		rb->bo = NULL;
+	}
+	rb = (void*)fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
+	if (rb->bo == NULL) {
+		/* Failed to BO for the buffer */
+		return;
+	}
+	
+	_mesa_lock_texture(radeon->glCtx, texObj);
+	if (t->bo) {
+		t->bo = NULL;
 	}
+	if (t->mt) {
+		t->mt = NULL;
+	}
+	if (rImage->mt) {
+		radeon_miptree_unreference(rImage->mt);
+		rImage->mt = NULL;
+	}
+	fprintf(stderr,"settexbuf %dx%d@%d\n", rb->width, rb->height, rb->cpp);
+	_mesa_init_teximage_fields(radeon->glCtx, target, texImage,
+				   rb->width, rb->height, 1, 0, rb->cpp);
+	texImage->TexFormat = &_mesa_texformat_rgba8888_rev;
+	rImage->bo = rb->bo;
+	
+	t->bo = rb->bo;
+	t->tile_bits = 0;
+	t->image_override = GL_TRUE;
+	t->override_offset = 0;
+	t->pp_txpitch &= (1 << 13) -1;
+	pitch_val = rb->pitch;
+	switch (rb->cpp) {
+	case 4:
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
+		t->pp_txfilter |= tx_table[2].filter;
+		pitch_val /= 4;
+		break;
+	case 3:
+	default:
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
+		t->pp_txfilter |= tx_table[4].filter;
+		pitch_val /= 4;
+		break;
+	case 2:
+		t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
+		t->pp_txfilter |= tx_table[5].filter;
+		pitch_val /= 2;
+		break;
+	}
+	pitch_val--;
+	t->pp_txsize = ((rb->width - 1) << R300_TX_WIDTHMASK_SHIFT) |
+              ((rb->height - 1) << R300_TX_HEIGHTMASK_SHIFT);
+	t->pp_txsize |= R300_TX_SIZE_TXPITCH_EN;
+	t->pp_txpitch |= pitch_val;
+	t->validated = GL_TRUE;
+	_mesa_unlock_texture(radeon->glCtx, texObj);
+	return;
 }