--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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/imports.h"
+#include "main/convolve.h"
+#include "main/enums.h"
+#include "main/image.h"
+#include "main/macros.h"
+#include "main/texcompress.h"
+#include "main/texformat.h"
+#include "main/teximage.h"
+#include "main/texobj.h"
+#include "main/texstore.h"
+
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_cb_texture.h"
+#include "state_tracker/st_mipmap_tree.h"
+
+#include "pipe/p_context.h"
+
+
+#define DBG if (0) printf
+
+
+struct st_texture_object
+{
+ struct gl_texture_object base; /* The "parent" object */
+
+ /* The mipmap tree must include at least these levels once
+ * validated:
+ */
+ GLuint firstLevel;
+ GLuint lastLevel;
+
+ /* Offset for firstLevel image:
+ */
+ GLuint textureOffset;
+
+ /* On validation any active images held in main memory or in other
+ * regions will be copied to this region and the old storage freed.
+ */
+ struct pipe_mipmap_tree *mt;
+
+ GLboolean imageOverride;
+ GLint depthOverride;
+ GLuint pitchOverride;
+};
+
+
+
+struct st_texture_image
+{
+ struct gl_texture_image base;
+
+ /* These aren't stored in gl_texture_image
+ */
+ GLuint level;
+ GLuint face;
+
+ /* If stImage->mt != NULL, image data is stored here.
+ * Else if stImage->base.Data != NULL, image is stored there.
+ * Else there is no image data.
+ */
+ struct pipe_mipmap_tree *mt;
+};
+
+
+
+
+static INLINE struct st_texture_object *
+st_texture_object(struct gl_texture_object *obj)
+{
+ return (struct st_texture_object *) obj;
+}
+
+static INLINE struct st_texture_image *
+st_texture_image(struct gl_texture_image *img)
+{
+ return (struct st_texture_image *) img;
+}
+
+
+static int
+intel_compressed_num_bytes(GLuint mesaFormat)
+{
+ int bytes = 0;
+ switch(mesaFormat) {
+
+ case MESA_FORMAT_RGB_FXT1:
+ case MESA_FORMAT_RGBA_FXT1:
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_RGBA_DXT1:
+ bytes = 2;
+ break;
+
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_RGBA_DXT5:
+ bytes = 4;
+ default:
+ break;
+ }
+
+ return bytes;
+}
+
+
+/* It works out that this function is fine for all the supported
+ * hardware. However, there is still a need to map the formats onto
+ * hardware descriptors.
+ */
+/* Note that the i915 can actually support many more formats than
+ * these if we take the step of simply swizzling the colors
+ * immediately after sampling...
+ */
+static const struct gl_texture_format *
+st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+#if 0
+ struct intel_context *intel = intel_context(ctx);
+ const GLboolean do32bpt = (intel->intelScreen->front.cpp == 4);
+#else
+ const GLboolean do32bpt = 1;
+#endif
+
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ case GL_COMPRESSED_RGBA:
+ if (format == GL_BGRA) {
+ if (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) {
+ return &_mesa_texformat_argb8888;
+ }
+ else if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ return &_mesa_texformat_argb4444;
+ }
+ else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ return &_mesa_texformat_argb1555;
+ }
+ }
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
+
+ case 3:
+ case GL_RGB:
+ case GL_COMPRESSED_RGB:
+ if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
+ return &_mesa_texformat_rgb565;
+ }
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565;
+
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
+
+ case GL_RGBA4:
+ case GL_RGBA2:
+ return &_mesa_texformat_argb4444;
+
+ case GL_RGB5_A1:
+ return &_mesa_texformat_argb1555;
+
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return &_mesa_texformat_argb8888;
+
+ case GL_RGB5:
+ case GL_RGB4:
+ case GL_R3_G3_B2:
+ return &_mesa_texformat_rgb565;
+
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case GL_COMPRESSED_ALPHA:
+ return &_mesa_texformat_a8;
+
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case GL_COMPRESSED_LUMINANCE:
+ return &_mesa_texformat_l8;
+
+ 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 &_mesa_texformat_al88;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_COMPRESSED_INTENSITY:
+ return &_mesa_texformat_i8;
+
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE)
+ return &_mesa_texformat_ycbcr;
+ else
+ return &_mesa_texformat_ycbcr_rev;
+
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return &_mesa_texformat_rgb_fxt1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return &_mesa_texformat_rgba_fxt1;
+
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgb_dxt1;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgba_dxt1;
+
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ return &_mesa_texformat_rgba_dxt3;
+
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_rgba_dxt5;
+
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return &_mesa_texformat_z16;
+
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return &_mesa_texformat_z24_s8;
+
+ default:
+ fprintf(stderr, "unexpected texture format %s in %s\n",
+ _mesa_lookup_enum_by_nr(internalFormat), __FUNCTION__);
+ return NULL;
+ }
+
+ return NULL; /* never get here */
+}
+
+
+static GLboolean
+st_IsTextureResident(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 *
+st_NewTextureImage(GLcontext * ctx)
+{
+ DBG("%s\n", __FUNCTION__);
+ (void) ctx;
+ return (struct gl_texture_image *) CALLOC_STRUCT(st_texture_image);
+}
+
+
+static struct gl_texture_object *
+st_NewTextureObject(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
+st_DeleteTextureObject(GLcontext *ctx,
+ struct gl_texture_object *texObj)
+{
+ struct pipe_context *pipe = ctx->st->pipe;
+ struct st_texture_object *stObj = st_texture_object(texObj);
+
+ if (stObj->mt)
+ st_miptree_release(pipe, &stObj->mt);
+
+ _mesa_delete_texture_object(ctx, texObj);
+}
+
+
+static void
+st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage)
+{
+ struct pipe_context *pipe = ctx->st->pipe;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+
+ DBG("%s\n", __FUNCTION__);
+
+ if (stImage->mt) {
+ st_miptree_release(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);
+}
+
+
+/* Functions to store texture images. Where possible, mipmap_tree's
+ * will be created or further instantiated with image data, otherwise
+ * images will be stored in malloc'd memory. A validation step is
+ * required to pull those images into a mipmap tree, or otherwise
+ * decide a fallback is required.
+ */
+
+
+static int
+logbase2(int n)
+{
+ GLint i = 1;
+ GLint log2 = 0;
+
+ while (n > i) {
+ i *= 2;
+ log2++;
+ }
+
+ return log2;
+}
+
+
+/* Otherwise, store it in memory if (Border != 0) or (any dimension ==
+ * 1).
+ *
+ * Otherwise, if max_level >= level >= min_level, create tree with
+ * space for textures from min_level down to max_level.
+ *
+ * Otherwise, create tree with space for textures from (level
+ * 0)..(1x1). Consider pruning this tree at a validation if the
+ * saving is worth it.
+ */
+static void
+guess_and_alloc_mipmap_tree(struct pipe_context *pipe,
+ struct st_texture_object *intelObj,
+ struct st_texture_image *intelImage)
+{
+ GLuint firstLevel;
+ GLuint lastLevel;
+ GLuint width = intelImage->base.Width;
+ GLuint height = intelImage->base.Height;
+ GLuint depth = intelImage->base.Depth;
+ GLuint l2width, l2height, l2depth;
+ GLuint i, comp_byte = 0;
+
+ DBG("%s\n", __FUNCTION__);
+
+ if (intelImage->base.Border)
+ return;
+
+ if (intelImage->level > intelObj->base.BaseLevel &&
+ (intelImage->base.Width == 1 ||
+ (intelObj->base.Target != GL_TEXTURE_1D &&
+ intelImage->base.Height == 1) ||
+ (intelObj->base.Target == GL_TEXTURE_3D &&
+ intelImage->base.Depth == 1)))
+ return;
+
+ /* If this image disrespects BaseLevel, allocate from level zero.
+ * Usually BaseLevel == 0, so it's unlikely to happen.
+ */
+ if (intelImage->level < intelObj->base.BaseLevel)
+ firstLevel = 0;
+ else
+ firstLevel = intelObj->base.BaseLevel;
+
+
+ /* Figure out image dimensions at start level.
+ */
+ for (i = intelImage->level; i > firstLevel; i--) {
+ width <<= 1;
+ if (height != 1)
+ height <<= 1;
+ if (depth != 1)
+ depth <<= 1;
+ }
+
+ /* Guess a reasonable value for lastLevel. This is probably going
+ * to be wrong fairly often and might mean that we have to look at
+ * resizable buffers, or require that buffers implement lazy
+ * pagetable arrangements.
+ */
+ if ((intelObj->base.MinFilter == GL_NEAREST ||
+ intelObj->base.MinFilter == GL_LINEAR) &&
+ intelImage->level == firstLevel) {
+ lastLevel = firstLevel;
+ }
+ else {
+ l2width = logbase2(width);
+ l2height = logbase2(height);
+ l2depth = logbase2(depth);
+ lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
+ }
+
+ assert(!intelObj->mt);
+ if (intelImage->base.IsCompressed)
+ comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat->MesaFormat);
+ intelObj->mt = st_miptree_create(pipe,
+ intelObj->base.Target,
+ intelImage->base.InternalFormat,
+ firstLevel,
+ lastLevel,
+ width,
+ height,
+ depth,
+ intelImage->base.TexFormat->TexelBytes,
+ comp_byte);
+
+ DBG("%s - success\n", __FUNCTION__);
+}
+
+
+
+
+static GLuint
+target_to_face(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
+ default:
+ return 0;
+ }
+}
+
+
+
+/* There are actually quite a few combinations this will work for,
+ * more than what I've listed here.
+ */
+static GLboolean
+check_pbo_format(GLint internalFormat,
+ GLenum format, GLenum type,
+ const struct gl_texture_format *mesa_format)
+{
+ switch (internalFormat) {
+ case 4:
+ case GL_RGBA:
+ return (format == GL_BGRA &&
+ (type == GL_UNSIGNED_BYTE ||
+ type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
+ mesa_format == &_mesa_texformat_argb8888);
+ case 3:
+ case GL_RGB:
+ return (format == GL_RGB &&
+ type == GL_UNSIGNED_SHORT_5_6_5 &&
+ mesa_format == &_mesa_texformat_rgb565);
+ case GL_YCBCR_MESA:
+ return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/* XXX: Do this for TexSubImage also:
+ */
+static GLboolean
+try_pbo_upload(GLcontext *ctx,
+ struct st_texture_image *intelImage,
+ const struct gl_pixelstore_attrib *unpack,
+ GLint internalFormat,
+ GLint width, GLint height,
+ GLenum format, GLenum type, const void *pixels)
+{
+ return GL_FALSE; /* XXX fix flushing/locking/blitting below */
+#if 000
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
+ GLuint src_offset, src_stride;
+ GLuint dst_offset, dst_stride;
+
+ if (!pbo ||
+ ctx._ImageTransferState ||
+ unpack->SkipPixels || unpack->SkipRows) {
+ _mesa_printf("%s: failure 1\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ src_offset = (GLuint) pixels;
+
+ if (unpack->RowLength > 0)
+ src_stride = unpack->RowLength;
+ else
+ src_stride = width;
+
+ dst_offset = st_miptree_image_offset(intelImage->mt,
+ intelImage->face,
+ intelImage->level);
+
+ dst_stride = intelImage->mt->pitch;
+
+ intelFlush(&intel->ctx);
+ LOCK_HARDWARE(intel);
+ {
+ struct _DriBufferObject *src_buffer =
+ intel_bufferobj_buffer(intel, pbo, INTEL_READ);
+
+ /* Temporary hack: cast to _DriBufferObject:
+ */
+ struct _DriBufferObject *dst_buffer =
+ (struct _DriBufferObject *)intelImage->mt->region->buffer;
+
+
+ intelEmitCopyBlit(intel,
+ intelImage->mt->cpp,
+ src_stride, src_buffer, src_offset,
+ dst_stride, dst_buffer, dst_offset,
+ 0, 0, 0, 0, width, height,
+ GL_COPY);
+
+ intel_batchbuffer_flush(intel->batch);
+ }
+ UNLOCK_HARDWARE(intel);
+
+ return GL_TRUE;
+#endif
+}
+
+
+
+static GLboolean
+try_pbo_zcopy(GLcontext *ctx,
+ struct st_texture_image *intelImage,
+ const struct gl_pixelstore_attrib *unpack,
+ GLint internalFormat,
+ GLint width, GLint height,
+ GLenum format, GLenum type, const void *pixels)
+{
+ return GL_FALSE;
+}
+
+
+
+
+
+
+static void
+st_TexImage(GLcontext * ctx,
+ GLint dims,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage, GLsizei imageSize, int compressed)
+{
+ struct pipe_context *pipe = ctx->st->pipe;
+ struct st_texture_object *intelObj = st_texture_object(texObj);
+ struct st_texture_image *intelImage = st_texture_image(texImage);
+ GLint postConvWidth = width;
+ GLint postConvHeight = height;
+ GLint texelBytes, sizeInBytes;
+ GLuint dstRowStride;
+
+
+ DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
+
+#if 0
+ intelFlush(ctx);
+#endif
+
+ intelImage->face = target_to_face(target);
+ intelImage->level = level;
+
+ if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
+ _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
+ &postConvHeight);
+ }
+
+ /* choose the texture format */
+ texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat,
+ format, type);
+
+ _mesa_set_fetch_functions(texImage, dims);
+
+ if (texImage->TexFormat->TexelBytes == 0) {
+ /* must be a compressed format */
+ texelBytes = 0;
+ texImage->IsCompressed = GL_TRUE;
+ texImage->CompressedSize =
+ ctx->Driver.CompressedTextureSize(ctx, texImage->Width,
+ texImage->Height, texImage->Depth,
+ texImage->TexFormat->MesaFormat);
+ } else {
+ texelBytes = texImage->TexFormat->TexelBytes;
+
+ /* Minimum pitch of 32 bytes */
+ if (postConvWidth * texelBytes < 32) {
+ postConvWidth = 32 / texelBytes;
+ texImage->RowStride = postConvWidth;
+ }
+
+ assert(texImage->RowStride == postConvWidth);
+ }
+
+ /* Release the reference to a potentially orphaned buffer.
+ * Release any old malloced memory.
+ */
+ if (intelImage->mt) {
+ st_miptree_release(pipe, &intelImage->mt);
+ assert(!texImage->Data);
+ }
+ else if (texImage->Data) {
+ _mesa_align_free(texImage->Data);
+ }
+
+ /* If this is the only texture image in the tree, could call
+ * bmBufferData with NULL data to free the old block and avoid
+ * waiting on any outstanding fences.
+ */
+ if (intelObj->mt &&
+ intelObj->mt->first_level == level &&
+ intelObj->mt->last_level == level &&
+ intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
+ !st_miptree_match_image(intelObj->mt, &intelImage->base,
+ intelImage->face, intelImage->level)) {
+
+ DBG("release it\n");
+ st_miptree_release(pipe, &intelObj->mt);
+ assert(!intelObj->mt);
+ }
+
+ if (!intelObj->mt) {
+ guess_and_alloc_mipmap_tree(pipe, intelObj, intelImage);
+ if (!intelObj->mt) {
+ DBG("guess_and_alloc_mipmap_tree: failed\n");
+ }
+ }
+
+ assert(!intelImage->mt);
+
+ if (intelObj->mt &&
+ st_miptree_match_image(intelObj->mt, &intelImage->base,
+ intelImage->face, intelImage->level)) {
+
+ st_miptree_reference(&intelImage->mt, intelObj->mt);
+ assert(intelImage->mt);
+ }
+
+ if (!intelImage->mt)
+ DBG("XXX: Image did not fit into tree - storing in local memory!\n");
+
+#if 0 /* XXX FIX when st_buffer_objects are in place */
+ /* PBO fastpaths:
+ */
+ if (dims <= 2 &&
+ intelImage->mt &&
+ intel_buffer_object(unpack->BufferObj) &&
+ check_pbo_format(internalFormat, format,
+ type, intelImage->base.TexFormat)) {
+
+ DBG("trying pbo upload\n");
+
+ /* Attempt to texture directly from PBO data (zero copy upload).
+ *
+ * Currently disable as it can lead to worse as well as better
+ * performance (in particular when pipe_region_cow() is
+ * required).
+ */
+ if (intelObj->mt == intelImage->mt &&
+ intelObj->mt->first_level == level &&
+ intelObj->mt->last_level == level) {
+
+ if (try_pbo_zcopy(intel, intelImage, unpack,
+ internalFormat,
+ width, height, format, type, pixels)) {
+
+ DBG("pbo zcopy upload succeeded\n");
+ return;
+ }
+ }
+
+
+ /* Otherwise, attempt to use the blitter for PBO image uploads.
+ */
+ if (try_pbo_upload(intel, intelImage, unpack,
+ internalFormat,
+ width, height, format, type, pixels)) {
+ DBG("pbo upload succeeded\n");
+ return;
+ }
+
+ DBG("pbo upload failed\n");
+ }
+#else
+ (void) try_pbo_upload;
+ (void) check_pbo_format;
+ (void) try_pbo_zcopy;
+#endif
+
+
+ /* intelCopyTexImage calls this function with pixels == NULL, with
+ * the expectation that the mipmap tree will be set up but nothing
+ * more will be done. This is where those calls return:
+ */
+ if (compressed) {
+ pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
+ unpack,
+ "glCompressedTexImage");
+ } else {
+ pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
+ format, type,
+ pixels, unpack, "glTexImage");
+ }
+ if (!pixels)
+ return;
+
+
+ if (intelImage->mt)
+ pipe->region_idle(pipe, intelImage->mt->region);
+
+#if 0
+ LOCK_HARDWARE(intel);
+#endif
+
+ if (intelImage->mt) {
+ texImage->Data = st_miptree_image_map(pipe,
+ intelImage->mt,
+ intelImage->face,
+ intelImage->level,
+ &dstRowStride,
+ intelImage->base.ImageOffsets);
+ }
+ else {
+ /* Allocate regular memory and store the image there temporarily. */
+ if (texImage->IsCompressed) {
+ sizeInBytes = texImage->CompressedSize;
+ dstRowStride =
+ _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width);
+ assert(dims != 3);
+ }
+ else {
+ dstRowStride = postConvWidth * texelBytes;
+ sizeInBytes = depth * dstRowStride * postConvHeight;
+ }
+
+ texImage->Data = malloc(sizeInBytes);
+ }
+
+ DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
+ width, height, depth, width * texelBytes, dstRowStride);
+
+ /* Copy data. Would like to know when it's ok for us to eg. use
+ * the blitter to copy. Or, use the hardware to do the format
+ * conversion and copy:
+ */
+ if (compressed) {
+ memcpy(texImage->Data, pixels, imageSize);
+ }
+ else if (!texImage->TexFormat->StoreImage(ctx, dims,
+ texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride,
+ texImage->ImageOffsets,
+ width, height, depth,
+ format, type, pixels, unpack)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, unpack);
+
+ if (intelImage->mt) {
+ st_miptree_image_unmap(pipe, intelImage->mt);
+ texImage->Data = NULL;
+ }
+
+#if 0
+ UNLOCK_HARDWARE(intel);
+#endif
+
+#if 0
+ /* GL_SGIS_generate_mipmap -- this can be accelerated now.
+ */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ intel_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+#endif
+}
+
+
+static void
+st_TexImage3D(GLcontext * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 3, target, level,
+ internalFormat, width, height, depth, border,
+ format, type, pixels, unpack, texObj, texImage, 0, 0);
+}
+
+
+static void
+st_TexImage2D(GLcontext * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 2, target, level,
+ internalFormat, width, height, 1, border,
+ format, type, pixels, unpack, texObj, texImage, 0, 0);
+}
+
+
+static void
+st_TexImage1D(GLcontext * ctx,
+ GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexImage(ctx, 1, target, level,
+ internalFormat, width, 1, 1, border,
+ format, type, pixels, unpack, texObj, texImage, 0, 0);
+}
+
+
+static void
+st_CompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage )
+{
+ st_TexImage(ctx, 2, target, level,
+ internalFormat, width, height, 1, border,
+ 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1);
+}
+
+
+/**
+ * Need to map texture image into memory before copying image data,
+ * then unmap it.
+ */
+static void
+st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid * pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage, int compressed)
+{
+ /*
+ struct intel_context *intel = intel_context(ctx);
+ */
+ struct pipe_context *pipe = ctx->st->pipe;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+
+ /* Map */
+ if (stImage->mt) {
+ /* Image is stored in hardware format in a buffer managed by the
+ * kernel. Need to explicitly map and unmap it.
+ */
+ stImage->base.Data =
+ st_miptree_image_map(pipe,
+ stImage->mt,
+ stImage->face,
+ stImage->level,
+ &stImage->base.RowStride,
+ stImage->base.ImageOffsets);
+ stImage->base.RowStride /= stImage->mt->cpp;
+ }
+ else {
+ /* Otherwise, the image should actually be stored in
+ * stImage->base.Data. This is pretty confusing for
+ * everybody, I'd much prefer to separate the two functions of
+ * texImage->Data - storage for texture images in main memory
+ * and access (ie mappings) of images. In other words, we'd
+ * create a new texImage->Map field and leave Data simply for
+ * storage.
+ */
+ assert(stImage->base.Data);
+ }
+
+
+ if (compressed) {
+ _mesa_get_compressed_teximage(ctx, target, level, pixels,
+ texObj, texImage);
+ } else {
+ _mesa_get_teximage(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+ }
+
+
+ /* Unmap */
+ if (stImage->mt) {
+ st_miptree_image_unmap(pipe, stImage->mt);
+ stImage->base.Data = NULL;
+ }
+}
+
+
+static void
+st_GetTexImage(GLcontext * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid * pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_get_tex_image(ctx, target, level, format, type, pixels,
+ texObj, texImage, 0);
+}
+
+
+static void
+st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
+ GLvoid *pixels,
+ const struct gl_texture_object *texObj,
+ const struct gl_texture_image *texImage)
+{
+ st_get_tex_image(ctx, target, level, 0, 0, pixels,
+ (struct gl_texture_object *) texObj,
+ (struct gl_texture_image *) texImage, 1);
+}
+
+
+
+static void
+st_TexSubimage(GLcontext * ctx,
+ GLint dims,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ struct pipe_context *pipe = ctx->st->pipe;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ GLuint dstRowStride;
+
+ DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target),
+ level, xoffset, yoffset, width, height);
+
+#if 0
+ intelFlush(ctx);
+#endif
+
+ pixels =
+ _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
+ type, pixels, packing, "glTexSubImage2D");
+ if (!pixels)
+ return;
+
+ if (stImage->mt)
+ pipe->region_idle(pipe, stImage->mt->region);
+
+#if 0
+ LOCK_HARDWARE(intel);
+#endif
+
+ /* Map buffer if necessary. Need to lock to prevent other contexts
+ * from uploading the buffer under us.
+ */
+ if (stImage->mt)
+ texImage->Data = st_miptree_image_map(pipe,
+ stImage->mt,
+ stImage->face,
+ stImage->level,
+ &dstRowStride,
+ texImage->ImageOffsets);
+
+ assert(dstRowStride);
+
+ if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, yoffset, zoffset,
+ dstRowStride,
+ texImage->ImageOffsets,
+ width, height, depth,
+ format, type, pixels, packing)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
+ }
+
+#if 0
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+#endif
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+
+ if (stImage->mt) {
+ st_miptree_image_unmap(pipe, stImage->mt);
+ texImage->Data = NULL;
+ }
+
+#if 0
+ UNLOCK_HARDWARE(intel);
+#endif
+}
+
+
+
+static void
+st_TexSubImage3D(GLcontext * ctx,
+ GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type,
+ const GLvoid * pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 3,
+ target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels, packing, texObj, texImage);
+}
+
+
+
+static void
+st_TexSubImage2D(GLcontext * ctx,
+ GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid * pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 2,
+ target, level,
+ xoffset, yoffset, 0,
+ width, height, 1,
+ format, type, pixels, packing, texObj, texImage);
+}
+
+
+static void
+st_TexSubImage1D(GLcontext * ctx,
+ GLenum target,
+ GLint level,
+ GLint xoffset,
+ GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid * pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ st_TexSubimage(ctx, 1,
+ target, level,
+ xoffset, 0, 0,
+ width, 1, 1,
+ format, type, pixels, packing, texObj, texImage);
+}
+
+
+
+/**
+ * Get the pipe_region which is the source for any glCopyTex[Sub]Image call.
+ *
+ * Do the best we can using the blitter. A future project is to use
+ * the texture engine and fragment programs for these copies.
+ */
+static const struct pipe_region *
+get_teximage_source(GLcontext *ctx, GLenum internalFormat)
+{
+#if 00
+ struct intel_renderbuffer *irb;
+
+ DBG("%s %s\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(internalFormat));
+
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16_ARB:
+ irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
+ if (irb && irb->region && irb->region->cpp == 2)
+ return irb->region;
+ return NULL;
+ case GL_DEPTH24_STENCIL8_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
+ if (irb && irb->region && irb->region->cpp == 4)
+ return irb->region;
+ return NULL;
+ case GL_RGBA:
+ case GL_RGBA8:
+ return intel_readbuf_region(intel);
+ case GL_RGB:
+ if (intel->intelScreen->front.cpp == 2)
+ return intel_readbuf_region(intel);
+ return NULL;
+ default:
+ return NULL;
+ }
+#else
+ return NULL;
+#endif
+}
+
+
+static GLboolean
+do_copy_texsubimage(GLcontext *ctx,
+ struct st_texture_image *stImage,
+ GLenum internalFormat,
+ GLint dstx, GLint dsty,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ const struct pipe_region *src =
+ get_teximage_source(ctx, internalFormat);
+
+ if (!stImage->mt || !src) {
+ DBG("%s fail %p %p\n", __FUNCTION__, stImage->mt, src);
+ return GL_FALSE;
+ }
+
+#if 00 /* XXX FIX flush/locking */
+ intelFlush(ctx);
+ /* XXX still need the lock ? */
+ LOCK_HARDWARE(intel);
+#endif
+
+ {
+ GLuint image_offset = st_miptree_image_offset(stImage->mt,
+ stImage->face,
+ stImage->level);
+ const GLint orig_x = x;
+ const GLint orig_y = y;
+ const struct gl_framebuffer *fb = ctx->DrawBuffer;
+
+ if (_mesa_clip_to_region(fb->_Xmin, fb->_Ymin, fb->_Xmax, fb->_Ymax,
+ &x, &y, &width, &height)) {
+ /* Update dst for clipped src. Need to also clip the source rect.
+ */
+ dstx += x - orig_x;
+ dsty += y - orig_y;
+
+ if (!(ctx->ReadBuffer->Name == 0)) {
+ /* XXX this looks bogus ? */
+ /* FBO: invert Y */
+ y = ctx->ReadBuffer->Height - y - 1;
+ }
+
+ /* A bit of fiddling to get the blitter to work with -ve
+ * pitches. But we get a nice inverted blit this way, so it's
+ * worth it:
+ */
+#if 0
+ intelEmitCopyBlit(intel,
+ stImage->mt->cpp,
+ -src->pitch,
+ src->buffer,
+ src->height * src->pitch * src->cpp,
+ stImage->mt->pitch,
+ stImage->mt->region->buffer,
+ image_offset,
+ x, y + height, dstx, dsty, width, height,
+ GL_COPY); /* ? */
+ intel_batchbuffer_flush(intel->batch);
+#else
+ /* XXX use pipe->region_copy() ??? */
+ (void) image_offset;
+#endif
+ }
+ }
+
+#if 0
+ UNLOCK_HARDWARE(intel);
+#endif
+
+#if 0
+ /* GL_SGIS_generate_mipmap -- this can be accelerated now.
+ * XXX Add a ctx->Driver.GenerateMipmaps() function?
+ */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ intel_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+#endif
+
+ return GL_TRUE;
+}
+
+
+static void
+st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLint border)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (border)
+ goto fail;
+
+ /* Setup or redefine the texture object, mipmap tree and texture
+ * image. Don't populate yet.
+ */
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border,
+ GL_RGBA, CHAN_TYPE, NULL,
+ &ctx->DefaultPacking, texObj, texImage);
+
+ if (!do_copy_texsubimage(ctx,
+ st_texture_image(texImage),
+ internalFormat, 0, 0, x, y, width, 1))
+ goto fail;
+
+ return;
+
+ fail:
+#if 0
+ _swrast_copy_teximage1d(ctx, target, level, internalFormat, x, y,
+ width, border);
+#endif
+ ;
+}
+
+
+static void
+st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (border)
+ goto fail;
+
+ /* Setup or redefine the texture object, mipmap tree and texture
+ * image. Don't populate yet.
+ */
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border,
+ GL_RGBA, CHAN_TYPE, NULL,
+ &ctx->DefaultPacking, texObj, texImage);
+
+
+ if (!do_copy_texsubimage(ctx,
+ st_texture_image(texImage),
+ internalFormat, 0, 0, x, y, width, height))
+ goto fail;
+
+ return;
+
+ fail:
+#if 0
+ _swrast_copy_teximage2d(ctx, target, level, internalFormat, x, y,
+ width, height, border);
+#endif
+ assert(0);
+}
+
+
+static void
+st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+ GLenum internalFormat = texImage->InternalFormat;
+
+ /* XXX need to check <border> as in above function? */
+
+ /* Need to check texture is compatible with source format.
+ */
+
+ if (!do_copy_texsubimage(ctx,
+ st_texture_image(texImage),
+ internalFormat, xoffset, 0, x, y, width, 1)) {
+#if 0
+ _swrast_copy_texsubimage1d(ctx, target, level, xoffset, x, y, width);
+#endif
+ assert(0);
+ }
+}
+
+
+static void
+st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+ GLenum internalFormat = texImage->InternalFormat;
+
+
+ /* Need to check texture is compatible with source format.
+ */
+
+ if (!do_copy_texsubimage(ctx,
+ st_texture_image(texImage),
+ internalFormat,
+ xoffset, yoffset, x, y, width, height)) {
+#if 0
+ _swrast_copy_texsubimage2d(ctx, target, level,
+ xoffset, yoffset, x, y, width, height);
+#endif
+ assert(0);
+ }
+}
+
+
+
+
+/**
+ * Compute which mipmap levels that really need to be sent to the hardware.
+ * This depends on the base image size, GL_TEXTURE_MIN_LOD,
+ * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
+ */
+static void
+intel_calculate_first_last_level(struct st_texture_object *intelObj)
+{
+ struct gl_texture_object *tObj = &intelObj->base;
+ const struct gl_texture_image *const baseImage =
+ tObj->Image[0][tObj->BaseLevel];
+
+ /* These must be signed values. MinLod and MaxLod can be negative numbers,
+ * and having firstLevel and lastLevel as signed prevents the need for
+ * extra sign checks.
+ */
+ int firstLevel;
+ int lastLevel;
+
+ /* Yes, this looks overly complicated, but it's all needed.
+ */
+ switch (tObj->Target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_CUBE_MAP:
+ if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) {
+ /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
+ */
+ firstLevel = lastLevel = tObj->BaseLevel;
+ }
+ else {
+ firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5);
+ firstLevel = MAX2(firstLevel, tObj->BaseLevel);
+ lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5);
+ lastLevel = MAX2(lastLevel, tObj->BaseLevel);
+ lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2);
+ lastLevel = MIN2(lastLevel, tObj->MaxLevel);
+ lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */
+ }
+ break;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_TEXTURE_4D_SGIS:
+ firstLevel = lastLevel = 0;
+ break;
+ default:
+ return;
+ }
+
+ /* save these values */
+ intelObj->firstLevel = firstLevel;
+ intelObj->lastLevel = lastLevel;
+}
+
+
+static void
+copy_image_data_to_tree(struct pipe_context *pipe,
+ struct st_texture_object *intelObj,
+ struct st_texture_image *stImage)
+{
+ if (stImage->mt) {
+ /* Copy potentially with the blitter:
+ */
+ st_miptree_image_copy(pipe,
+ intelObj->mt,
+ stImage->face,
+ stImage->level, stImage->mt);
+
+ st_miptree_release(pipe, &stImage->mt);
+ }
+ else {
+ assert(stImage->base.Data != NULL);
+
+ /* More straightforward upload.
+ */
+ st_miptree_image_data(pipe,
+ intelObj->mt,
+ stImage->face,
+ stImage->level,
+ stImage->base.Data,
+ stImage->base.RowStride,
+ stImage->base.RowStride *
+ stImage->base.Height);
+ _mesa_align_free(stImage->base.Data);
+ stImage->base.Data = NULL;
+ }
+
+ st_miptree_reference(&stImage->mt, intelObj->mt);
+}
+
+
+/*
+ */
+GLuint
+st_finalize_mipmap_tree(GLcontext *ctx,
+ struct pipe_context *pipe, GLuint unit,
+ GLboolean *needFlush)
+{
+ struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
+ struct st_texture_object *intelObj = st_texture_object(tObj);
+ int comp_byte = 0;
+ int cpp;
+
+ GLuint face, i;
+ GLuint nr_faces = 0;
+ struct st_texture_image *firstImage;
+
+ *needFlush = GL_FALSE;
+
+ /* We know/require this is true by now:
+ */
+ assert(intelObj->base._Complete);
+
+ /* What levels must the tree include at a minimum?
+ */
+ intel_calculate_first_last_level(intelObj);
+ firstImage =
+ st_texture_image(intelObj->base.Image[0][intelObj->firstLevel]);
+
+ /* Fallback case:
+ */
+ if (firstImage->base.Border) {
+ if (intelObj->mt) {
+ st_miptree_release(pipe, &intelObj->mt);
+ }
+ return GL_FALSE;
+ }
+
+
+ /* If both firstImage and intelObj have a tree which can contain
+ * all active images, favour firstImage. Note that because of the
+ * completeness requirement, we know that the image dimensions
+ * will match.
+ */
+ if (firstImage->mt &&
+ firstImage->mt != intelObj->mt &&
+ firstImage->mt->first_level <= intelObj->firstLevel &&
+ firstImage->mt->last_level >= intelObj->lastLevel) {
+
+ if (intelObj->mt)
+ st_miptree_release(pipe, &intelObj->mt);
+
+ st_miptree_reference(&intelObj->mt, firstImage->mt);
+ }
+
+ if (firstImage->base.IsCompressed) {
+ comp_byte = intel_compressed_num_bytes(firstImage->base.TexFormat->MesaFormat);
+ cpp = comp_byte;
+ }
+ else cpp = firstImage->base.TexFormat->TexelBytes;
+
+ /* Check tree can hold all active levels. Check tree matches
+ * target, imageFormat, etc.
+ *
+ * XXX: For some layouts (eg i945?), the test might have to be
+ * first_level == firstLevel, as the tree isn't valid except at the
+ * original start level. Hope to get around this by
+ * programming minLod, maxLod, baseLevel into the hardware and
+ * leaving the tree alone.
+ */
+ if (intelObj->mt &&
+ (intelObj->mt->target != intelObj->base.Target ||
+ intelObj->mt->internal_format != firstImage->base.InternalFormat ||
+ intelObj->mt->first_level != intelObj->firstLevel ||
+ intelObj->mt->last_level != intelObj->lastLevel ||
+ intelObj->mt->width0 != firstImage->base.Width ||
+ intelObj->mt->height0 != firstImage->base.Height ||
+ intelObj->mt->depth0 != firstImage->base.Depth ||
+ intelObj->mt->cpp != cpp ||
+ intelObj->mt->compressed != firstImage->base.IsCompressed)) {
+ st_miptree_release(pipe, &intelObj->mt);
+ }
+
+
+ /* May need to create a new tree:
+ */
+ if (!intelObj->mt) {
+ intelObj->mt = st_miptree_create(pipe,
+ intelObj->base.Target,
+ firstImage->base.InternalFormat,
+ intelObj->firstLevel,
+ intelObj->lastLevel,
+ firstImage->base.Width,
+ firstImage->base.Height,
+ firstImage->base.Depth,
+ cpp,
+ comp_byte);
+ }
+
+ /* Pull in any images not in the object's tree:
+ */
+ nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
+ for (face = 0; face < nr_faces; face++) {
+ for (i = intelObj->firstLevel; i <= intelObj->lastLevel; i++) {
+ struct st_texture_image *stImage =
+ st_texture_image(intelObj->base.Image[face][i]);
+
+ /* Need to import images in main memory or held in other trees.
+ */
+ if (intelObj->mt != stImage->mt) {
+ copy_image_data_to_tree(pipe, intelObj, stImage);
+ *needFlush = GL_TRUE;
+ }
+ }
+ }
+
+ /**
+ if (need_flush)
+ intel_batchbuffer_flush(intel->batch);
+ **/
+
+ return GL_TRUE;
+}
+
+
+#if 0 /* unused? */
+void
+st_tex_map_images(struct pipe_context *pipe,
+ struct st_texture_object *intelObj)
+{
+ GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
+ GLuint face, i;
+
+ DBG("%s\n", __FUNCTION__);
+
+ for (face = 0; face < nr_faces; face++) {
+ for (i = intelObj->firstLevel; i <= intelObj->lastLevel; i++) {
+ struct st_texture_image *stImage =
+ st_texture_image(intelObj->base.Image[face][i]);
+
+ if (stImage->mt) {
+ stImage->base.Data =
+ st_miptree_image_map(pipe,
+ stImage->mt,
+ stImage->face,
+ stImage->level,
+ &stImage->base.RowStride,
+ stImage->base.ImageOffsets);
+ /* convert stride to texels, not bytes */
+ stImage->base.RowStride /= stImage->mt->cpp;
+/* stImage->base.ImageStride /= stImage->mt->cpp; */
+ }
+ }
+ }
+}
+
+
+
+void
+st_tex_unmap_images(struct pipe_context *pipe,
+ struct st_texture_object *intelObj)
+{
+ GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
+ GLuint face, i;
+
+ for (face = 0; face < nr_faces; face++) {
+ for (i = intelObj->firstLevel; i <= intelObj->lastLevel; i++) {
+ struct st_texture_image *stImage =
+ st_texture_image(intelObj->base.Image[face][i]);
+
+ if (stImage->mt) {
+ st_miptree_image_unmap(pipe, stImage->mt);
+ stImage->base.Data = NULL;
+ }
+ }
+ }
+}
+#endif
+
+
+
+
+void st_init_cb_texture( struct st_context *st )
+{
+ struct dd_function_table *functions = &st->ctx->Driver;
+
+ functions->ChooseTextureFormat = st_ChooseTextureFormat;
+ functions->TexImage1D = st_TexImage1D;
+ functions->TexImage2D = st_TexImage2D;
+ functions->TexImage3D = st_TexImage3D;
+ functions->TexSubImage1D = st_TexSubImage1D;
+ functions->TexSubImage2D = st_TexSubImage2D;
+ functions->TexSubImage3D = st_TexSubImage3D;
+ functions->CopyTexImage1D = st_CopyTexImage1D;
+ functions->CopyTexImage2D = st_CopyTexImage2D;
+ functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
+ functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
+ functions->GetTexImage = st_GetTexImage;
+
+ /* compressed texture functions */
+ functions->CompressedTexImage2D = st_CompressedTexImage2D;
+ functions->GetCompressedTexImage = st_GetCompressedTexImage;
+
+ functions->NewTextureObject = st_NewTextureObject;
+ functions->NewTextureImage = st_NewTextureImage;
+ functions->DeleteTexture = st_DeleteTextureObject;
+ functions->FreeTexImageData = st_FreeTextureImageData;
+ functions->UpdateTexturePalette = 0;
+ functions->IsTextureResident = st_IsTextureResident;
+
+ functions->TextureMemCpy = do_memcpy;
+}
+
+
+void st_destroy_cb_texture( struct st_context *st )
+{
+}
projects / mesa.git / commitdiff