void intel_tex_map_level_images(struct intel_context *intel, struct intel_texture_object *intelObj, int level) { GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; GLuint face; for (face = 0; face < nr_faces; face++) { struct intel_texture_image *intelImage = intel_texture_image(intelObj->base.Image[face][level]); if (intelImage->mt) { intelImage->base.Data = intel_miptree_image_map(intel, intelImage->mt, intelImage->face, intelImage->level, &intelImage->base.RowStride, intelImage->base.ImageOffsets); /* convert stride to texels, not bytes */ intelImage->base.RowStride /= intelImage->mt->cpp; /* intelImage->base.ImageStride /= intelImage->mt->cpp; */ } } }
/** * Need to map texture image into memory before copying image data, * then unmap it. */ static void intel_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 intel_texture_image *intelImage = intel_texture_image(texImage); /* Map */ if (intelImage->mt) { /* Image is stored in hardware format in a buffer managed by the * kernel. Need to explicitly map and unmap it. */ intelImage->base.Data = intel_miptree_image_map(intel, intelImage->mt, intelImage->face, intelImage->level, &intelImage->base.RowStride, intelImage->base.ImageOffsets); intelImage->base.RowStride /= intelImage->mt->cpp; } else { /* Otherwise, the image should actually be stored in * intelImage->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(intelImage->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 (intelImage->mt) { intel_miptree_image_unmap(intel, intelImage->mt); intelImage->base.Data = NULL; } }
static void intelTexImage(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 intel_context *intel = intel_context(ctx); struct intel_texture_object *intelObj = intel_texture_object(texObj); struct intel_texture_image *intelImage = intel_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); intelFlush(ctx); 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 = intelChooseTextureFormat(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) { intel_miptree_release(intel, &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 && !intel_miptree_match_image(intelObj->mt, &intelImage->base, intelImage->face, intelImage->level)) { DBG("release it\n"); intel_miptree_release(intel, &intelObj->mt); assert(!intelObj->mt); } if (!intelObj->mt) { guess_and_alloc_mipmap_tree(intel, intelObj, intelImage); if (!intelObj->mt) { DBG("guess_and_alloc_mipmap_tree: failed\n"); } } assert(!intelImage->mt); if (intelObj->mt && intel_miptree_match_image(intelObj->mt, &intelImage->base, intelImage->face, intelImage->level)) { intel_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"); /* 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 intel_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"); } /* 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) intel_region_idle(intel->intelScreen, intelImage->mt->region); LOCK_HARDWARE(intel); if (intelImage->mt) { texImage->Data = intel_miptree_image_map(intel, 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) { intel_miptree_image_unmap(intel, intelImage->mt); texImage->Data = NULL; } UNLOCK_HARDWARE(intel); #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 }