#include "pipe/p_context.h"
#include "util/u_sampler.h"
+#include "util/simple_mtx.h"
#include "main/mtypes.h"
};
+/**
+ * Container for one context's validated sampler view.
+ */
+struct st_sampler_view {
+ struct pipe_sampler_view *view;
+
+ /** The glsl version of the shader seen during validation */
+ bool glsl130_or_later;
+ /** Derived from the sampler's sRGBDecode state during validation */
+ bool srgb_skip_decode;
+};
+
+
+/**
+ * Container for per-context sampler views of a texture.
+ */
+struct st_sampler_views {
+ struct st_sampler_views *next;
+ uint32_t max;
+ uint32_t count;
+ struct st_sampler_view views[0];
+};
+
/**
* Subclass of gl_texure_image.
*/
* mapping/unmapping, as well as image copies.
*/
GLubyte *etc_data;
- };
+};
/**
*/
struct pipe_resource *pt;
- /* Number of views in sampler_views array */
- GLuint num_sampler_views;
+ /* Protect modifications of the sampler_views array */
+ simple_mtx_t validate_mutex;
- /* Array of sampler views (one per context) attached to this texture
+ /* Container of sampler views (one per context) attached to this texture
* object. Created lazily on first binding in context.
+ *
+ * Purely read-only accesses to the current context's own sampler view
+ * require no locking. Another thread may simultaneously replace the
+ * container object in order to grow the array, but the old container will
+ * be kept alive.
+ *
+ * Writing to the container (even for modifying the current context's own
+ * sampler view) always requires taking the validate_mutex to protect against
+ * concurrent container switches.
+ *
+ * NULL'ing another context's sampler view is allowed only while
+ * implementing an API call that modifies the texture: an application which
+ * calls those while simultaneously reading the texture in another context
+ * invokes undefined behavior. (TODO: a dubious violation of this rule is
+ * st_finalize_texture, which is a lazy operation that corresponds to a
+ * texture modification.)
+ */
+ struct st_sampler_views *sampler_views;
+
+ /* Old sampler views container objects that have not been freed yet because
+ * other threads/contexts may still be reading from them.
*/
- struct pipe_sampler_view **sampler_views;
+ struct st_sampler_views *sampler_views_old;
/* True if this texture comes from the window system. Such a texture
* cannot be reallocated and the format can only be changed with a sampler
*/
enum pipe_format surface_format;
+ /* When non-zero, samplers should use this level instead of the level
+ * range specified by the GL state.
+ *
+ * This is used for EGL images, which may correspond to a single level out
+ * of an imported pipe_resources with multiple mip levels.
+ */
+ uint level_override;
+
/* When non-zero, samplers should use this layer instead of the one
* specified by the GL state.
*
- * This is used for VDPAU interop, where imported pipe_resources may be
- * array textures (containing layers with different fields) even though the
- * GL state describes one non-array texture per field.
+ * This is used for EGL images and VDPAU interop, where imported
+ * pipe_resources may be cube, 3D, or array textures (containing layers
+ * with different fields in the case of VDPAU) even though the GL state
+ * describes one non-array texture per field.
*/
uint layer_override;
- /** The glsl version of the shader seen during the previous validation */
- unsigned prev_glsl_version;
- /** The value of the sampler's sRGBDecode state at the previous validation */
- GLenum prev_sRGBDecode;
-
/**
* Set when the texture images of this texture object might not all be in
* the pipe_resource *pt above.
extern struct pipe_resource *
st_create_color_map_texture(struct gl_context *ctx);
+void
+st_destroy_bound_texture_handles(struct st_context *st);
+
+void
+st_destroy_bound_image_handles(struct st_context *st);
bool
st_etc_fallback(struct st_context *st, struct gl_texture_image *texImage);
st_convert_image(const struct st_context *st, const struct gl_image_unit *u,
struct pipe_image_view *img);
+void
+st_convert_image_from_unit(const struct st_context *st,
+ struct pipe_image_view *img,
+ GLuint imgUnit);
+
void
st_convert_sampler(const struct st_context *st,
const struct gl_texture_object *texobj,
const struct gl_sampler_object *msamp,
+ float tex_unit_lod_bias,
struct pipe_sampler_state *sampler);
-GLboolean
+void
+st_convert_sampler_from_unit(const struct st_context *st,
+ struct pipe_sampler_state *sampler,
+ GLuint texUnit);
+
+void
st_update_single_texture(struct st_context *st,
struct pipe_sampler_view **sampler_view,
- GLuint texUnit, unsigned glsl_version);
+ GLuint texUnit, bool glsl130_or_later,
+ bool ignore_srgb_decode);
+
+void
+st_make_bound_samplers_resident(struct st_context *st,
+ struct gl_program *prog);
+
+void
+st_make_bound_images_resident(struct st_context *st,
+ struct gl_program *prog);
#endif
projects / mesa.git / blobdiff