* color by simply changing the clear color without modifying either
* surface.
*
- * 2) Compressed w/ Clear: In this state, neither the auxiliary surface
+ * 2) Partial Clear: In this state, each block in the auxiliary surface
+ * contains either the magic clear or pass-through value. See Clear and
+ * Pass-through for more details.
+ *
+ * 3) Compressed w/ Clear: In this state, neither the auxiliary surface
* nor the primary surface has a complete representation of the data.
* Instead, both surfaces must be used together or else rendering
* corruption may occur. Depending on the auxiliary compression format
* values. Blocks may also be in the clear state (see Clear) and have
* their value taken from outside the surface.
*
- * 3) Compressed w/o Clear: This state is identical to the state above
+ * 4) Compressed w/o Clear: This state is identical to the state above
* except that no blocks are in the clear state. In this state, all of
* the data required to reconstruct the final sample values is contained
* in the auxiliary and primary surface and the clear value is not
* considered.
*
- * 4) Resolved: In this state, the primary surface contains 100% of the
+ * 5) Resolved: In this state, the primary surface contains 100% of the
* data. The auxiliary surface is also valid so the surface can be
* validly used with or without aux enabled. The auxiliary surface may,
* however, contain non-trivial data and any update to the primary
* surface with aux disabled will cause the two to get out of sync.
*
- * 5) Pass-through: In this state, the primary surface contains 100% of the
+ * 6) Pass-through: In this state, the primary surface contains 100% of the
* data and every block in the auxiliary surface contains a magic value
* which indicates that the auxiliary surface should be ignored and the
* only the primary surface should be considered. Updating the primary
* cause the auxiliary buffer to contain non-trivial data and no longer
* be in the pass-through state.
*
- * 5) Aux Invalid: In this state, the primary surface contains 100% of the
+ * 7) Aux Invalid: In this state, the primary surface contains 100% of the
* data and the auxiliary surface is completely bogus. Any attempt to
* use the auxiliary surface is liable to result in rendering
* corruption. The only thing that one can do to re-enable aux once
*
* Drawing with or without aux enabled may implicitly cause the surface to
* transition between these states. There are also four types of auxiliary
- * compression operations which cause an explicit transition:
- *
- * 1) Fast Clear: This operation writes the magic "clear" value to the
- * auxiliary surface. This operation will safely transition any slice
- * of a surface from any state to the clear state so long as the entire
- * slice is fast cleared at once.
- *
- * 2) Full Resolve: This operation combines the auxiliary surface data
- * with the primary surface data and writes the result to the primary.
- * For HiZ, the docs call this a depth resolve. For CCS, the hardware
- * full resolve operation does both a full resolve and an ambiguate so
- * it actually takes you all the way to the pass-through state.
- *
- * 3) Partial Resolve: This operation considers blocks which are in the
- * "clear" state and writes the clear value directly into the primary or
- * auxiliary surface. Once this operation completes, the surface is
- * still compressed but no longer references the clear color. This
- * operation is only available for CCS.
- *
- * 4) Ambiguate: This operation throws away the current auxiliary data and
- * replaces it with the magic pass-through value. If an ambiguate
- * operation is performed when the primary surface does not contain 100%
- * of the data, data will be lost. This operation is only implemented
- * in hardware for depth where it is called a HiZ resolve.
+ * compression operations which cause an explicit transition which are
+ * described by the isl_aux_op enum below.
*
* Not all operations are valid or useful in all states. The diagram below
* contains a complete description of the states and all valid and useful
* Draw w/ Aux
* +----------+
* | |
- * | +-------------+ Draw w/ Aux +-------------+
- * +------>| Compressed |<---------------------| Clear |
- * | w/ Clear | | |
- * +-------------+ +-------------+
- * | | |
- * Partial | | |
- * Resolve | | Full Resolve |
- * | +----------------------------+ | Full
- * | | | Resolve
- * Draw w/ aux | | |
- * +----------+ | | |
- * | | \|/ \|/ \|/
- * | +-------------+ Full Resolve +-------------+
- * +------>| Compressed |--------------------->| Resolved |
- * | w/o Clear |<---------------------| |
- * +-------------+ Draw w/ Aux +-------------+
- * /|\ | |
- * | Draw | | Draw
- * | w/ Aux | | w/o Aux
- * | Ambiguate | |
- * | +----------------------------+ |
- * Draw w/o Aux | | | Draw w/o Aux
- * +----------+ | | | +----------+
- * | | | \|/ \|/ | |
- * | +-------------+ Ambiguate +-------------+ |
- * +------>| Pass- |<---------------------| Aux |<------+
- * | through | | Invalid |
- * +-------------+ +-------------+
+ * | +-------------+ Draw w/ Aux +-------------+
+ * +------>| Compressed |<-------------------| Clear |
+ * | w/ Clear |----->----+ | |
+ * +-------------+ | +-------------+
+ * | /|\ | | |
+ * | | | | |
+ * | | +------<-----+ | Draw w/
+ * | | | | Clear Only
+ * | | Full | | +----------+
+ * Partial | | Resolve | \|/ | |
+ * Resolve | | | +-------------+ |
+ * | | | | Partial |<------+
+ * | | | | Clear |<----------+
+ * | | | +-------------+ |
+ * | | | | |
+ * | | +------>---------+ Full |
+ * | | | Resolve |
+ * Draw w/ aux | | Partial Fast Clear | |
+ * +----------+ | +--------------------------+ | |
+ * | | \|/ | \|/ |
+ * | +-------------+ Full Resolve +-------------+ |
+ * +------>| Compressed |------------------->| Resolved | |
+ * | w/o Clear |<-------------------| | |
+ * +-------------+ Draw w/ Aux +-------------+ |
+ * /|\ | | |
+ * | Draw | | Draw |
+ * | w/ Aux | | w/o Aux |
+ * | Ambiguate | | |
+ * | +--------------------------+ | |
+ * Draw w/o Aux | | | Draw w/o Aux |
+ * +----------+ | | | +----------+ |
+ * | | | \|/ \|/ | | |
+ * | +-------------+ Ambiguate +-------------+ | |
+ * +------>| Pass- |<-------------------| Aux |<------+ |
+ * +------>| through | | Invalid | |
+ * | +-------------+ +-------------+ |
+ * | | | |
+ * +----------+ +-----------------------------------------------------+
+ * Draw w/ Partial Fast Clear
+ * Clear Only
*
*
* While the above general theory applies to all forms of auxiliary
* CCS_D: Single-sample fast-clears (also called CCS_D in ISL) are one of
* the simplest forms of compression since they don't do anything
* beyond clear color tracking. They really only support three of
- * the six states: Clear, Compressed w/ Clear, and Pass-through. The
+ * the six states: Clear, Partial Clear, and Pass-through. The
* only CCS_D operation is "Resolve" which maps to a full resolve
* followed by an ambiguate.
*
*/
enum isl_aux_state {
ISL_AUX_STATE_CLEAR = 0,
+ ISL_AUX_STATE_PARTIAL_CLEAR,
ISL_AUX_STATE_COMPRESSED_CLEAR,
ISL_AUX_STATE_COMPRESSED_NO_CLEAR,
ISL_AUX_STATE_RESOLVED,
ISL_AUX_STATE_AUX_INVALID,
};
+/**
+ * Enum which describes explicit aux transition operations.
+ */
+enum isl_aux_op {
+ ISL_AUX_OP_NONE,
+
+ /** Fast Clear
+ *
+ * This operation writes the magic "clear" value to the auxiliary surface.
+ * This operation will safely transition any slice of a surface from any
+ * state to the clear state so long as the entire slice is fast cleared at
+ * once. A fast clear that only covers part of a slice of a surface is
+ * called a partial fast clear.
+ */
+ ISL_AUX_OP_FAST_CLEAR,
+
+ /** Full Resolve
+ *
+ * This operation combines the auxiliary surface data with the primary
+ * surface data and writes the result to the primary. For HiZ, the docs
+ * call this a depth resolve. For CCS, the hardware full resolve operation
+ * does both a full resolve and an ambiguate so it actually takes you all
+ * the way to the pass-through state.
+ */
+ ISL_AUX_OP_FULL_RESOLVE,
+
+ /** Partial Resolve
+ *
+ * This operation considers blocks which are in the "clear" state and
+ * writes the clear value directly into the primary or auxiliary surface.
+ * Once this operation completes, the surface is still compressed but no
+ * longer references the clear color. This operation is only available
+ * for CCS_E.
+ */
+ ISL_AUX_OP_PARTIAL_RESOLVE,
+
+ /** Ambiguate
+ *
+ * This operation throws away the current auxiliary data and replaces it
+ * with the magic pass-through value. If an ambiguate operation is
+ * performed when the primary surface does not contain 100% of the data,
+ * data will be lost. This operation is only implemented in hardware for
+ * depth where it is called a HiZ resolve.
+ */
+ ISL_AUX_OP_AMBIGUATE,
+};
+
/* TODO(chadv): Explain */
enum isl_array_pitch_span {
ISL_ARRAY_PITCH_SPAN_FULL,
uint8_t align;
uint8_t addr_offset;
uint8_t aux_addr_offset;
+
+ /* Rounded up to the nearest dword to simplify GPU memcpy operations. */
+
+ /* size of the state buffer used to store the clear color + extra
+ * additional space used by the hardware */
+ uint8_t clear_color_state_size;
+ uint8_t clear_color_state_offset;
+ /* size of the clear color itself - used to copy it to/from a BO */
+ uint8_t clear_value_size;
+ uint8_t clear_value_offset;
} ss;
/**
uint8_t bh; /**< Block height, in pixels */
uint8_t bd; /**< Block depth, in pixels */
- struct {
- struct isl_channel_layout r; /**< Red channel */
- struct isl_channel_layout g; /**< Green channel */
- struct isl_channel_layout b; /**< Blue channel */
- struct isl_channel_layout a; /**< Alpha channel */
- struct isl_channel_layout l; /**< Luminance channel */
- struct isl_channel_layout i; /**< Intensity channel */
- struct isl_channel_layout p; /**< Palette channel */
- } channels;
+ union {
+ struct {
+ struct isl_channel_layout r; /**< Red channel */
+ struct isl_channel_layout g; /**< Green channel */
+ struct isl_channel_layout b; /**< Blue channel */
+ struct isl_channel_layout a; /**< Alpha channel */
+ struct isl_channel_layout l; /**< Luminance channel */
+ struct isl_channel_layout i; /**< Intensity channel */
+ struct isl_channel_layout p; /**< Palette channel */
+ } channels;
+ struct isl_channel_layout channels_array[7];
+ };
enum isl_colorspace colorspace;
enum isl_txc txc;
*/
union isl_color_value clear_color;
+ /**
+ * Send only the clear value address
+ *
+ * If set, we only pass the clear address to the GPU and it will fetch it
+ * from wherever it is.
+ */
+ bool use_clear_address;
+ uint64_t clear_address;
+
/**
* Surface write disables for gen4-5
*/
return &isl_format_layouts[fmt];
}
+bool isl_format_is_valid(enum isl_format);
+
static inline const char * ATTRIBUTE_CONST
isl_format_get_name(enum isl_format fmt)
{
return fmtl->bw == 1 && fmtl->bh == 1 && fmtl->bd == 1;
}
+static inline bool
+isl_format_is_srgb(enum isl_format fmt)
+{
+ return isl_format_layouts[fmt].colorspace == ISL_COLORSPACE_SRGB;
+}
+
+enum isl_format isl_format_srgb_to_linear(enum isl_format fmt);
+
static inline bool
isl_format_is_rgb(enum isl_format fmt)
{
+ if (isl_format_is_yuv(fmt))
+ return false;
return isl_format_layouts[fmt].channels.r.bits > 0 &&
isl_format_layouts[fmt].channels.g.bits > 0 &&
isl_format_layouts[fmt].channels.b.bits > 0 &&
uint32_t
isl_tiling_to_i915_tiling(enum isl_tiling tiling);
+enum isl_tiling
+isl_tiling_from_i915_tiling(uint32_t tiling);
+
const struct isl_drm_modifier_info * ATTRIBUTE_CONST
isl_drm_modifier_get_info(uint64_t modifier);
+static inline bool
+isl_drm_modifier_has_aux(uint64_t modifier)
+{
+ return isl_drm_modifier_get_info(modifier)->aux_usage != ISL_AUX_USAGE_NONE;
+}
+
+/** Returns the default isl_aux_state for the given modifier.
+ *
+ * If we have a modifier which supports compression, then the auxiliary data
+ * could be in state other than ISL_AUX_STATE_AUX_INVALID. In particular, it
+ * can be in any of the following:
+ *
+ * - ISL_AUX_STATE_CLEAR
+ * - ISL_AUX_STATE_PARTIAL_CLEAR
+ * - ISL_AUX_STATE_COMPRESSED_CLEAR
+ * - ISL_AUX_STATE_COMPRESSED_NO_CLEAR
+ * - ISL_AUX_STATE_RESOLVED
+ * - ISL_AUX_STATE_PASS_THROUGH
+ *
+ * If the modifier does not support fast-clears, then we are guaranteed
+ * that the surface is at least partially resolved and the first three not
+ * possible. We return ISL_AUX_STATE_COMPRESSED_CLEAR if the modifier
+ * supports fast clears and ISL_AUX_STATE_COMPRESSED_NO_CLEAR if it does not
+ * because they are the least common denominator of the set of possible aux
+ * states and will yield a valid interpretation of the aux data.
+ *
+ * For modifiers with no aux support, ISL_AUX_STATE_AUX_INVALID is returned.
+ */
+static inline enum isl_aux_state
+isl_drm_modifier_get_default_aux_state(uint64_t modifier)
+{
+ const struct isl_drm_modifier_info *mod_info =
+ isl_drm_modifier_get_info(modifier);
+
+ if (!mod_info || mod_info->aux_usage == ISL_AUX_USAGE_NONE)
+ return ISL_AUX_STATE_AUX_INVALID;
+
+ assert(mod_info->aux_usage == ISL_AUX_USAGE_CCS_E);
+ return mod_info->supports_clear_color ? ISL_AUX_STATE_COMPRESSED_CLEAR :
+ ISL_AUX_STATE_COMPRESSED_NO_CLEAR;
+}
+
struct isl_extent2d ATTRIBUTE_CONST
isl_get_interleaved_msaa_px_size_sa(uint32_t samples);
return e;
}
+bool isl_color_value_is_zero(union isl_color_value value,
+ enum isl_format format);
+
+bool isl_color_value_is_zero_one(union isl_color_value value,
+ enum isl_format format);
+
+static inline bool
+isl_swizzle_is_identity(struct isl_swizzle swizzle)
+{
+ return swizzle.r == ISL_CHANNEL_SELECT_RED &&
+ swizzle.g == ISL_CHANNEL_SELECT_GREEN &&
+ swizzle.b == ISL_CHANNEL_SELECT_BLUE &&
+ swizzle.a == ISL_CHANNEL_SELECT_ALPHA;
+}
+
+bool
+isl_swizzle_supports_rendering(const struct gen_device_info *devinfo,
+ struct isl_swizzle swizzle);
+
+struct isl_swizzle
+isl_swizzle_compose(struct isl_swizzle first, struct isl_swizzle second);
+struct isl_swizzle
+isl_swizzle_invert(struct isl_swizzle swizzle);
+
#define isl_surf_init(dev, surf, ...) \
isl_surf_init_s((dev), (surf), \
&(struct isl_surf_init_info) { __VA_ARGS__ });
isl_buffer_fill_state_s(const struct isl_device *dev, void *state,
const struct isl_buffer_fill_state_info *restrict info);
+void
+isl_null_fill_state(const struct isl_device *dev, void *state,
+ struct isl_extent3d size);
+
#define isl_emit_depth_stencil_hiz(dev, batch, ...) \
isl_emit_depth_stencil_hiz_s((dev), (batch), \
&(struct isl_depth_stencil_hiz_emit_info) { __VA_ARGS__ })
uint32_t *x_offset_sa,
uint32_t *y_offset_sa);
+/**
+ * Create an isl_surf that represents a particular subimage in the surface.
+ *
+ * The newly created surface will have a single miplevel and array slice. The
+ * surface lives at the returned byte and intratile offsets, in samples.
+ *
+ * It is safe to call this function with surf == image_surf.
+ *
+ * @invariant level < surface levels
+ * @invariant logical_array_layer < logical array length of surface
+ * @invariant logical_z_offset_px < logical depth of surface at level
+ */
+void
+isl_surf_get_image_surf(const struct isl_device *dev,
+ const struct isl_surf *surf,
+ uint32_t level,
+ uint32_t logical_array_layer,
+ uint32_t logical_z_offset_px,
+ struct isl_surf *image_surf,
+ uint32_t *offset_B,
+ uint32_t *x_offset_sa,
+ uint32_t *y_offset_sa);
+
/**
* @brief Calculate the intratile offsets to a surface.
*
projects / mesa.git / blobdiff