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Diffstat (limited to 'src/mesa/drivers/dri/i915-tex/intel_mipmap_tree.c')
-rw-r--r--src/mesa/drivers/dri/i915-tex/intel_mipmap_tree.c300
1 files changed, 300 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915-tex/intel_mipmap_tree.c b/src/mesa/drivers/dri/i915-tex/intel_mipmap_tree.c
new file mode 100644
index 00000000000..7f4f00cf8e3
--- /dev/null
+++ b/src/mesa/drivers/dri/i915-tex/intel_mipmap_tree.c
@@ -0,0 +1,300 @@
+/**************************************************************************
+ *
+ * Copyright 2006 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 "intel_context.h"
+#include "intel_mipmap_tree.h"
+#include "intel_regions.h"
+#include "intel_bufmgr.h"
+#include "enums.h"
+
+static GLenum target_to_target( 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 GL_TEXTURE_CUBE_MAP_ARB;
+ default:
+ return target;
+ }
+}
+
+struct intel_mipmap_tree *intel_miptree_create( struct intel_context *intel,
+ GLenum target,
+ GLenum internal_format,
+ GLuint first_level,
+ GLuint last_level,
+ GLuint width0,
+ GLuint height0,
+ GLuint depth0,
+ GLuint cpp,
+ GLboolean compressed)
+{
+ GLboolean ok;
+ struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
+
+ DBG("%s target %s format %s level %d..%d\n", __FUNCTION__,
+ _mesa_lookup_enum_by_nr(target),
+ _mesa_lookup_enum_by_nr(internal_format),
+ first_level,
+ last_level);
+
+ mt->target = target_to_target(target);
+ mt->internal_format = internal_format;
+ mt->first_level = first_level;
+ mt->last_level = last_level;
+ mt->width0 = width0;
+ mt->height0 = height0;
+ mt->depth0 = depth0;
+ mt->cpp = cpp;
+ mt->compressed = compressed;
+ mt->refcount = 1;
+
+ switch (intel->intelScreen->deviceID) {
+ case PCI_CHIP_I945_G:
+/* case PCI_CHIP_I945_GM: */
+ ok = i945_miptree_layout( mt );
+ break;
+ default:
+ /* All the i830 chips and the i915 use this layout:
+ */
+ ok = i915_miptree_layout( mt );
+ break;
+ }
+
+ if (ok)
+ mt->region = intel_region_alloc( intel,
+ mt->cpp,
+ mt->pitch,
+ mt->total_height );
+
+ if (!mt->region) {
+ free(mt);
+ return NULL;
+ }
+
+ return mt;
+}
+
+
+void intel_miptree_reference( struct intel_mipmap_tree **dst,
+ struct intel_mipmap_tree *src )
+{
+ src->refcount++;
+ *dst = src;
+}
+
+void intel_miptree_release( struct intel_context *intel,
+ struct intel_mipmap_tree **mt )
+{
+ if (!*mt)
+ return;
+
+ DBG("%s %d\n", __FUNCTION__, (*mt)->refcount-1);
+ if (--(*mt)->refcount == 0) {
+ intel_region_release(intel, &((*mt)->region));
+ free(*mt);
+ }
+ *mt = NULL;
+}
+
+
+
+
+/* Can the image be pulled into a unified mipmap tree. This mirrors
+ * the completeness test in a lot of ways.
+ *
+ * Not sure whether I want to pass gl_texture_image here.
+ */
+GLboolean intel_miptree_match_image( struct intel_mipmap_tree *mt,
+ struct gl_texture_image *image,
+ GLuint face,
+ GLuint level )
+{
+ DBG("%s %d %d/%d %d/%d\n", __FUNCTION__,
+ image->Border,
+ image->InternalFormat, mt->internal_format,
+ image->IsCompressed, mt->compressed);
+
+ /* Images with borders are never pulled into mipmap trees.
+ */
+ if (image->Border)
+ return GL_FALSE;
+
+ if (image->InternalFormat != mt->internal_format ||
+ image->IsCompressed != mt->compressed)
+ return GL_FALSE;
+
+ DBG("%s: %d/%d %d/%d %d/%d\n", __FUNCTION__,
+ image->Width, mt->offset[face][level].width,
+ image->Height, mt->offset[face][level].height,
+ image->Depth, mt->offset[face][level].depth);
+
+ /* Test image dimensions against the base level image adjusted for
+ * minification. This will also catch images not present in the
+ * tree, changed targets, etc.
+ */
+ if (image->Width != mt->offset[face][level].width ||
+ image->Height != mt->offset[face][level].height ||
+ image->Depth != mt->offset[face][level].depth)
+ return GL_FALSE;
+
+
+ DBG("%s: success\n", __FUNCTION__);
+ return GL_TRUE;
+}
+
+
+GLuint intel_miptree_image_offset(struct intel_mipmap_tree *mt,
+ GLuint face,
+ GLuint level)
+{
+ return mt->offset[face][level].offset;
+}
+
+GLuint intel_miptree_depth_image_stride(struct intel_mipmap_tree *mt,
+ GLuint face,
+ GLuint level)
+{
+ return mt->offset[face][level].depth_image_stride;
+}
+
+
+void intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
+ GLuint face,
+ GLuint level,
+ GLuint x, GLuint y,
+ GLuint w, GLuint h, GLuint d)
+{
+ mt->offset[face][level].offset = (x + y * mt->pitch) * mt->cpp;
+ mt->offset[face][level].width = w;
+ mt->offset[face][level].height = h;
+ mt->offset[face][level].depth = d;
+}
+
+
+
+/**
+ * Map a teximage in a mipmap tree.
+ * \param row_stride returns row stride in bytes
+ * \param image_stride returns image stride in bytes (for 3D textures).
+ * \return address of mapping
+ */
+GLubyte *intel_miptree_image_map(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ GLuint face,
+ GLuint level,
+ GLuint *row_stride,
+ GLuint *image_stride)
+{
+ DBG("%s \n", __FUNCTION__);
+
+ if (row_stride)
+ *row_stride = mt->pitch * mt->cpp;
+
+ if (image_stride)
+ *image_stride = mt->offset[face][level].depth_image_stride;
+
+ return (intel_region_map(intel, mt->region) +
+ intel_miptree_image_offset(mt, face, level));
+}
+
+void intel_miptree_image_unmap(struct intel_context *intel,
+ struct intel_mipmap_tree *mt)
+{
+ DBG("%s\n", __FUNCTION__);
+ intel_region_unmap(intel, mt->region);
+}
+
+
+
+/* Upload data for a particular image.
+ */
+void intel_miptree_image_data(struct intel_context *intel,
+ struct intel_mipmap_tree *dst,
+ GLuint face,
+ GLuint level,
+ void *src,
+ GLuint src_row_pitch,
+ GLuint src_image_pitch)
+{
+ GLuint depth = dst->offset[face][level].depth;
+ GLuint dst_offset = intel_miptree_image_offset(dst, face, level);
+ GLuint dst_image_stride = intel_miptree_depth_image_stride(dst, face, level);
+ GLuint i;
+
+ DBG("%s\n", __FUNCTION__);
+ for (i = 0; i < depth; i++) {
+ intel_region_data(intel,
+ dst->region, dst_offset,
+ 0,
+ 0,
+ src,
+ src_row_pitch,
+ 0, 0, /* source x,y */
+ dst->offset[face][level].width,
+ dst->offset[face][level].height);
+ dst_offset += dst_image_stride;
+ src += src_image_pitch;
+ }
+}
+
+/* Copy mipmap image between trees
+ */
+void intel_miptree_image_copy( struct intel_context *intel,
+ struct intel_mipmap_tree *dst,
+ GLuint face, GLuint level,
+ struct intel_mipmap_tree *src )
+{
+ GLuint width = src->offset[face][level].width;
+ GLuint height = src->offset[face][level].height;
+ GLuint depth = src->offset[face][level].depth;
+ GLuint dst_offset = intel_miptree_image_offset(dst, face, level);
+ GLuint src_offset = intel_miptree_image_offset(src, face, level);
+ GLuint dst_image_stride = intel_miptree_depth_image_stride(dst, face, level);
+ GLuint src_image_stride = intel_miptree_depth_image_stride(src, face, level);
+ GLuint i;
+
+ for (i = 0; i < depth; i++) {
+ intel_region_copy(intel,
+ dst->region, dst_offset,
+ 0,
+ 0,
+ src->region, src_offset,
+ 0,
+ 0,
+ width,
+ height);
+
+ dst_offset += dst_image_stride;
+ src_offset += src_image_stride;
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 11:16:18 +0000