* MESA_FORMAT_Z_FLOAT32, otherwise for MESA_FORMAT_Z24_UNORM_S8_UINT objects it will be
* MESA_FORMAT_Z24_UNORM_X8_UINT.
*
- * For ETC1/ETC2 textures, this is one of the uncompressed mesa texture
- * formats if the hardware lacks support for ETC1/ETC2. See @ref etc_format.
- *
* @see RENDER_SURFACE_STATE.SurfaceFormat
* @see 3DSTATE_DEPTH_BUFFER.SurfaceFormat
*/
mesa_format format;
- /**
- * This variable stores the value of ETC compressed texture format
- *
- * @see RENDER_SURFACE_STATE.SurfaceFormat
- */
- mesa_format etc_format;
-
GLuint first_level;
GLuint last_level;
struct intel_mipmap_tree *stencil_mt;
/**
- * \brief Stencil texturing miptree for sampling from a stencil texture
+ * \brief Shadow miptree for sampling when the main isn't supported by HW.
*
- * Some hardware doesn't support sampling from the stencil texture as
- * required by the GL_ARB_stencil_texturing extenion. To workaround this we
- * blit the texture into a new texture that can be sampled.
+ * To workaround various sampler bugs and limitations, we blit the main
+ * texture into a new texture that can be sampled.
*
- * \see intel_update_r8stencil()
+ * This miptree may be used for:
+ * - Stencil texturing (pre-BDW) as required by GL_ARB_stencil_texturing.
+ * - To store the decompressed ETC/EAC data in case we emulate the ETC
+ * compression on Gen 7 or earlier GPUs.
*/
- struct intel_mipmap_tree *r8stencil_mt;
- bool r8stencil_needs_update;
+ struct intel_mipmap_tree *shadow_mt;
+ bool shadow_needs_update;
/**
* \brief CCS, MCS, or HiZ auxiliary buffer.
uint32_t level, uint32_t layer,
bool write)
{
- intel_miptree_prepare_access(brw, mt, level, 1, layer, 1, false, false);
+ intel_miptree_prepare_access(brw, mt, level, 1, layer, 1,
+ ISL_AUX_USAGE_NONE, false);
if (write)
- intel_miptree_finish_write(brw, mt, level, layer, 1, false);
+ intel_miptree_finish_write(brw, mt, level, layer, 1, ISL_AUX_USAGE_NONE);
}
enum isl_aux_usage
const struct intel_mipmap_tree *mt,
enum isl_format view_format, bool sampling,
struct brw_bo **clear_color_bo,
- uint32_t *clear_color_offset);
+ uint64_t *clear_color_offset);
static inline int
intel_miptree_blt_pitch(struct intel_mipmap_tree *mt)
{
- int pitch = mt->surf.row_pitch;
+ int pitch = mt->surf.row_pitch_B;
if (mt->surf.tiling != ISL_TILING_LINEAR)
pitch /= 4;
return pitch;
}
+isl_memcpy_type
+intel_miptree_get_memcpy_type(mesa_format tiledFormat, GLenum format, GLenum type,
+ uint32_t *cpp);
+
+static inline bool
+intel_miptree_needs_fake_etc(struct brw_context *brw,
+ struct intel_mipmap_tree *mt)
+{
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
+ bool is_etc = _mesa_is_format_etc2(mt->format) ||
+ (mt->format == MESA_FORMAT_ETC1_RGB8);
+
+ return devinfo->gen < 8 && !devinfo->is_baytrail && is_etc;
+}
+
+static inline bool
+intel_miptree_has_etc_shadow(struct brw_context *brw,
+ struct intel_mipmap_tree *mt)
+{
+ return intel_miptree_needs_fake_etc(brw, mt) && mt->shadow_mt;
+}
+
+void
+intel_miptree_update_etc_shadow_levels(struct brw_context *brw,
+ struct intel_mipmap_tree *mt);
+
#ifdef __cplusplus
}
#endif