#ifndef DRI_INTERFACE_H
#define DRI_INTERFACE_H
-/* For archs with no drm.h */
-#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
-#ifndef __NOT_HAVE_DRM_H
-#define __NOT_HAVE_DRM_H
-#endif
-#endif
-
-#ifndef __NOT_HAVE_DRM_H
+#ifdef HAVE_LIBDRM
#include <drm.h>
#else
typedef unsigned int drm_context_t;
typedef struct drm_clip_rect drm_clip_rect_t;
#endif
+#include <stdint.h>
+
/**
* \name DRI interface structures
*
typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
+typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension;
+typedef struct __DRI2fenceExtensionRec __DRI2fenceExtension;
+typedef struct __DRI2interopExtensionRec __DRI2interopExtension;
+
+
+typedef struct __DRIimageLoaderExtensionRec __DRIimageLoaderExtension;
+typedef struct __DRIimageDriverExtensionRec __DRIimageDriverExtension;
/*@}*/
#define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
#define __DRI_TEX_BUFFER "DRI_TexBuffer"
-#define __DRI_TEX_BUFFER_VERSION 2
+#define __DRI_TEX_BUFFER_VERSION 3
struct __DRItexBufferExtensionRec {
__DRIextension base;
* __DRIdrawable, including the required texture format attribute.
*
* For GLX_EXT_texture_from_pixmap with AIGLX.
+ *
+ * \since 2
*/
void (*setTexBuffer2)(__DRIcontext *pDRICtx,
GLint target,
* need this.
*
* For GLX_EXT_texture_from_pixmap with AIGLX.
+ *
+ * \since 3
*/
void (*releaseTexBuffer)(__DRIcontext *pDRICtx,
GLint target,
* Used by drivers that implement DRI2
*/
#define __DRI2_FLUSH "DRI2_Flush"
-#define __DRI2_FLUSH_VERSION 3
+#define __DRI2_FLUSH_VERSION 4
+
+#define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */
+#define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */
+#define __DRI2_FLUSH_INVALIDATE_ANCILLARY (1 << 2)
+
+enum __DRI2throttleReason {
+ __DRI2_THROTTLE_SWAPBUFFER,
+ __DRI2_THROTTLE_COPYSUBBUFFER,
+ __DRI2_THROTTLE_FLUSHFRONT
+};
+
struct __DRI2flushExtensionRec {
__DRIextension base;
void (*flush)(__DRIdrawable *drawable);
* \since 3
*/
void (*invalidate)(__DRIdrawable *drawable);
+
+ /**
+ * This function reduces the number of flushes in the driver by combining
+ * several operations into one call.
+ *
+ * It can:
+ * - throttle
+ * - flush a drawable
+ * - flush a context
+ *
+ * \param context the context
+ * \param drawable the drawable to flush
+ * \param flags a combination of _DRI2_FLUSH_xxx flags
+ * \param throttle_reason the reason for throttling, 0 = no throttling
+ *
+ * \since 4
+ */
+ void (*flush_with_flags)(__DRIcontext *ctx,
+ __DRIdrawable *drawable,
+ unsigned flags,
+ enum __DRI2throttleReason throttle_reason);
+};
+
+
+/**
+ * Extension that the driver uses to request
+ * throttle callbacks.
+ */
+
+#define __DRI2_THROTTLE "DRI2_Throttle"
+#define __DRI2_THROTTLE_VERSION 1
+
+struct __DRI2throttleExtensionRec {
+ __DRIextension base;
+ void (*throttle)(__DRIcontext *ctx,
+ __DRIdrawable *drawable,
+ enum __DRI2throttleReason reason);
};
/**
- * XML document describing the configuration options supported by the
- * driver.
+ * Extension for fences / synchronization objects.
*/
-extern const char __driConfigOptions[];
+
+#define __DRI2_FENCE "DRI2_Fence"
+#define __DRI2_FENCE_VERSION 2
+
+#define __DRI2_FENCE_TIMEOUT_INFINITE 0xffffffffffffffffull
+
+#define __DRI2_FENCE_FLAG_FLUSH_COMMANDS (1 << 0)
+
+/**
+ * \name Capabilities that might be returned by __DRI2fenceExtensionRec::get_capabilities
+ */
+/*@{*/
+#define __DRI_FENCE_CAP_NATIVE_FD 1
+/*@}*/
+
+struct __DRI2fenceExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Create and insert a fence into the command stream of the context.
+ */
+ void *(*create_fence)(__DRIcontext *ctx);
+
+ /**
+ * Get a fence associated with the OpenCL event object.
+ * This can be NULL, meaning that OpenCL interoperability is not supported.
+ */
+ void *(*get_fence_from_cl_event)(__DRIscreen *screen, intptr_t cl_event);
+
+ /**
+ * Destroy a fence.
+ */
+ void (*destroy_fence)(__DRIscreen *screen, void *fence);
+
+ /**
+ * This function waits and doesn't return until the fence is signalled
+ * or the timeout expires. It returns true if the fence has been signaled.
+ *
+ * \param ctx the context where commands are flushed
+ * \param fence the fence
+ * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags
+ * \param timeout the timeout in ns or __DRI2_FENCE_TIMEOUT_INFINITE
+ */
+ GLboolean (*client_wait_sync)(__DRIcontext *ctx, void *fence,
+ unsigned flags, uint64_t timeout);
+
+ /**
+ * This function enqueues a wait command into the command stream of
+ * the context and then returns. When the execution reaches the wait
+ * command, no further execution will be done in the context until
+ * the fence is signaled. This is a no-op if the device doesn't support
+ * parallel execution of contexts.
+ *
+ * \param ctx the context where the waiting is done
+ * \param fence the fence
+ * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags that make
+ * sense with this function (right now there are none)
+ */
+ void (*server_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags);
+
+ /**
+ * Query for general capabilities of the driver that concern fences.
+ * Returns a bitmask of __DRI_FENCE_CAP_x
+ *
+ * \since 2
+ */
+ unsigned (*get_capabilities)(__DRIscreen *screen);
+
+ /**
+ * Create an fd (file descriptor) associated fence. If the fence fd
+ * is -1, this behaves similarly to create_fence() except that when
+ * rendering is flushed the driver creates a fence fd. Otherwise,
+ * the driver wraps an existing fence fd.
+ *
+ * This is used to implement the EGL_ANDROID_native_fence_sync extension.
+ *
+ * \since 2
+ *
+ * \param ctx the context associated with the fence
+ * \param fd the fence fd or -1
+ */
+ void *(*create_fence_fd)(__DRIcontext *ctx, int fd);
+
+ /**
+ * For fences created with create_fence_fd(), after rendering is flushed,
+ * this retrieves the native fence fd. Caller takes ownership of the
+ * fd and will close() it when it is no longer needed.
+ *
+ * \since 2
+ *
+ * \param screen the screen associated with the fence
+ * \param fence the fence
+ */
+ int (*get_fence_fd)(__DRIscreen *screen, void *fence);
+};
+
+
+/**
+ * Extension for API interop.
+ * See GL/mesa_glinterop.h.
+ */
+
+#define __DRI2_INTEROP "DRI2_Interop"
+#define __DRI2_INTEROP_VERSION 1
+
+struct mesa_glinterop_device_info;
+struct mesa_glinterop_export_in;
+struct mesa_glinterop_export_out;
+
+struct __DRI2interopExtensionRec {
+ __DRIextension base;
+
+ /** Same as MesaGLInterop*QueryDeviceInfo. */
+ int (*query_device_info)(__DRIcontext *ctx,
+ struct mesa_glinterop_device_info *out);
+
+ /** Same as MesaGLInterop*ExportObject. */
+ int (*export_object)(__DRIcontext *ctx,
+ struct mesa_glinterop_export_in *in,
+ struct mesa_glinterop_export_out *out);
+};
/*@}*/
* SWRast Loader extension.
*/
#define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
-#define __DRI_SWRAST_LOADER_VERSION 1
+#define __DRI_SWRAST_LOADER_VERSION 3
struct __DRIswrastLoaderExtensionRec {
__DRIextension base;
void (*getImage)(__DRIdrawable *readable,
int x, int y, int width, int height,
char *data, void *loaderPrivate);
+
+ /**
+ * Put image to drawable
+ *
+ * \since 2
+ */
+ void (*putImage2)(__DRIdrawable *drawable, int op,
+ int x, int y, int width, int height, int stride,
+ char *data, void *loaderPrivate);
+
+ /**
+ * Put image to drawable
+ *
+ * \since 3
+ */
+ void (*getImage2)(__DRIdrawable *readable,
+ int x, int y, int width, int height, int stride,
+ char *data, void *loaderPrivate);
};
/**
*/
#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
+/**
+ * This symbol replaces the __DRI_DRIVER_EXTENSIONS symbol, and will be
+ * suffixed by "_drivername", allowing multiple drivers to be built into one
+ * library, and also giving the driver the chance to return a variable driver
+ * extensions struct depending on the driver name being loaded or any other
+ * system state.
+ *
+ * The function prototype is:
+ *
+ * const __DRIextension **__driDriverGetExtensions_drivername(void);
+ */
+#define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions"
+
/**
* Tokens for __DRIconfig attribs. A number of attributes defined by
* GLX or EGL standards are not in the table, as they must be provided
#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
#define __DRI_ATTRIB_YINVERTED 47
#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
+#define __DRI_ATTRIB_MAX (__DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE + 1)
/* __DRI_ATTRIB_RENDER_TYPE */
#define __DRI_ATTRIB_RGBA_BIT 0x01
#define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
#define __DRI_ATTRIB_LUMINANCE_BIT 0x04
+#define __DRI_ATTRIB_FLOAT_BIT 0x08
+#define __DRI_ATTRIB_UNSIGNED_FLOAT_BIT 0x10
/* __DRI_ATTRIB_CONFIG_CAVEAT */
#define __DRI_ATTRIB_SLOW_BIT 0x01
#define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
+/* __DRI_ATTRIB_SWAP_METHOD */
+/* Note that with the exception of __DRI_ATTRIB_SWAP_NONE, we need to define
+ * the same tokens as GLX. This is because old and current X servers will
+ * transmit the driconf value grabbed from the AIGLX driver untranslated as
+ * the GLX fbconfig value. __DRI_ATTRIB_SWAP_NONE is only used by dri drivers
+ * to signal to the dri core that the driconfig is single-buffer.
+ */
+#define __DRI_ATTRIB_SWAP_NONE 0x0000
+#define __DRI_ATTRIB_SWAP_EXCHANGE 0x8061
+#define __DRI_ATTRIB_SWAP_COPY 0x8062
+#define __DRI_ATTRIB_SWAP_UNDEFINED 0x8063
+
/**
* This extension defines the core DRI functionality.
+ *
+ * Version >= 2 indicates that getConfigAttrib with __DRI_ATTRIB_SWAP_METHOD
+ * returns a reliable value.
*/
#define __DRI_CORE "DRI_Core"
-#define __DRI_CORE_VERSION 1
+#define __DRI_CORE_VERSION 2
struct __DRIcoreExtensionRec {
__DRIextension base;
* conjunction with the core extension.
*/
#define __DRI_SWRAST "DRI_SWRast"
-#define __DRI_SWRAST_VERSION 2
+#define __DRI_SWRAST_VERSION 4
struct __DRIswrastExtensionRec {
__DRIextension base;
const __DRIconfig *config,
__DRIcontext *shared,
void *data);
+
+ /**
+ * Create a context for a particular API with a set of attributes
+ *
+ * \since version 3
+ *
+ * \sa __DRIdri2ExtensionRec::createContextAttribs
+ */
+ __DRIcontext *(*createContextAttribs)(__DRIscreen *screen,
+ int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ unsigned num_attribs,
+ const uint32_t *attribs,
+ unsigned *error,
+ void *loaderPrivate);
+
+ /**
+ * createNewScreen() with the driver extensions passed in.
+ *
+ * \since version 4
+ */
+ __DRIscreen *(*createNewScreen2)(int screen,
+ const __DRIextension **loader_extensions,
+ const __DRIextension **driver_extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
};
+/** Common DRI function definitions, shared among DRI2 and Image extensions
+ */
+
+typedef __DRIscreen *
+(*__DRIcreateNewScreen2Func)(int screen, int fd,
+ const __DRIextension **extensions,
+ const __DRIextension **driver_extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
+typedef __DRIdrawable *
+(*__DRIcreateNewDrawableFunc)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ void *loaderPrivate);
+
+typedef __DRIcontext *
+(*__DRIcreateContextAttribsFunc)(__DRIscreen *screen,
+ int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ unsigned num_attribs,
+ const uint32_t *attribs,
+ unsigned *error,
+ void *loaderPrivate);
+
+typedef unsigned int
+(*__DRIgetAPIMaskFunc)(__DRIscreen *screen);
+
/**
* DRI2 Loader extension.
*/
#define __DRI_BUFFER_FAKE_FRONT_LEFT 7
#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
#define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
+#define __DRI_BUFFER_HIZ 10
+
+/* Inofficial and for internal use. Increase when adding a new buffer token. */
+#define __DRI_BUFFER_COUNT 11
struct __DRIbufferRec {
unsigned int attachment;
};
#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
-#define __DRI_DRI2_LOADER_VERSION 3
+#define __DRI_DRI2_LOADER_VERSION 4
+
+enum dri_loader_cap {
+ /* Whether the loader handles RGBA channel ordering correctly. If not,
+ * only BGRA ordering can be exposed.
+ */
+ DRI_LOADER_CAP_RGBA_ORDERING,
+};
+
struct __DRIdri2LoaderExtensionRec {
__DRIextension base;
* \param driDrawable Drawable whose front-buffer is to be flushed
* \param loaderPrivate Loader's private data that was previously passed
* into __DRIdri2ExtensionRec::createNewDrawable
+ *
+ * \since 2
*/
void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
* \c attachments.
* \param loaderPrivate Loader's private data that was previously passed
* into __DRIdri2ExtensionRec::createNewDrawable.
+ *
+ * \since 3
*/
__DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
int *width, int *height,
unsigned int *attachments, int count,
int *out_count, void *loaderPrivate);
+
+ /**
+ * Return a loader capability value. If the loader doesn't know the enum,
+ * it will return 0.
+ *
+ * \param loaderPrivate The last parameter of createNewScreen or
+ * createNewScreen2.
+ * \param cap See the enum.
+ *
+ * \since 4
+ */
+ unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap);
};
/**
* constructors for DRI2.
*/
#define __DRI_DRI2 "DRI_DRI2"
-#define __DRI_DRI2_VERSION 2
+#define __DRI_DRI2_VERSION 4
+
+#define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */
+#define __DRI_API_GLES 1 /**< OpenGL ES 1.x */
+#define __DRI_API_GLES2 2 /**< OpenGL ES 2.x */
+#define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */
+#define __DRI_API_GLES3 4 /**< OpenGL ES 3.x */
+
+#define __DRI_CTX_ATTRIB_MAJOR_VERSION 0
+#define __DRI_CTX_ATTRIB_MINOR_VERSION 1
+#define __DRI_CTX_ATTRIB_FLAGS 2
+
+/**
+ * \requires __DRI2_ROBUSTNESS.
+ */
+#define __DRI_CTX_ATTRIB_RESET_STRATEGY 3
+
+#define __DRI_CTX_FLAG_DEBUG 0x00000001
+#define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002
+
+/**
+ * \requires __DRI2_ROBUSTNESS.
+ */
+#define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004
-#define __DRI_API_OPENGL 0
-#define __DRI_API_GLES 1
-#define __DRI_API_GLES2 2
+/**
+ * \requires __DRI2_NO_ERROR.
+ *
+ */
+#define __DRI_CTX_FLAG_NO_ERROR 0x00000008
+
+/**
+ * \name Context reset strategies.
+ */
+/*@{*/
+#define __DRI_CTX_RESET_NO_NOTIFICATION 0
+#define __DRI_CTX_RESET_LOSE_CONTEXT 1
+/*@}*/
+
+/**
+ * \name Reasons that __DRIdri2Extension::createContextAttribs might fail
+ */
+/*@{*/
+/** Success! */
+#define __DRI_CTX_ERROR_SUCCESS 0
+
+/** Memory allocation failure */
+#define __DRI_CTX_ERROR_NO_MEMORY 1
+
+/** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */
+#define __DRI_CTX_ERROR_BAD_API 2
+
+/** Client requested an API version that the driver can't do. */
+#define __DRI_CTX_ERROR_BAD_VERSION 3
+
+/** Client requested a flag or combination of flags the driver can't do. */
+#define __DRI_CTX_ERROR_BAD_FLAG 4
+
+/** Client requested an attribute the driver doesn't understand. */
+#define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5
+
+/** Client requested a flag the driver doesn't understand. */
+#define __DRI_CTX_ERROR_UNKNOWN_FLAG 6
+/*@}*/
struct __DRIdri2ExtensionRec {
__DRIextension base;
const __DRIconfig ***driver_configs,
void *loaderPrivate);
- __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
- const __DRIconfig *config,
- void *loaderPrivate);
-
- __DRIcontext *(*createNewContext)(__DRIscreen *screen,
- const __DRIconfig *config,
- __DRIcontext *shared,
- void *loaderPrivate);
+ __DRIcreateNewDrawableFunc createNewDrawable;
+ __DRIcontext *(*createNewContext)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ void *loaderPrivate);
/* Since version 2 */
- unsigned int (*getAPIMask)(__DRIscreen *screen);
+ __DRIgetAPIMaskFunc getAPIMask;
__DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
int api,
const __DRIconfig *config,
__DRIcontext *shared,
void *data);
+
+ __DRIbuffer *(*allocateBuffer)(__DRIscreen *screen,
+ unsigned int attachment,
+ unsigned int format,
+ int width,
+ int height);
+ void (*releaseBuffer)(__DRIscreen *screen,
+ __DRIbuffer *buffer);
+
+ /**
+ * Create a context for a particular API with a set of attributes
+ *
+ * \since version 3
+ *
+ * \sa __DRIswrastExtensionRec::createContextAttribs
+ */
+ __DRIcreateContextAttribsFunc createContextAttribs;
+
+ /**
+ * createNewScreen with the driver's extension list passed in.
+ *
+ * \since version 4
+ */
+ __DRIcreateNewScreen2Func createNewScreen2;
};
* extensions.
*/
#define __DRI_IMAGE "DRI_IMAGE"
-#define __DRI_IMAGE_VERSION 1
+#define __DRI_IMAGE_VERSION 17
/**
* These formats correspond to the similarly named MESA_FORMAT_*
* tokens, except in the native endian of the CPU. For example, on
* little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
* MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
+ *
+ * __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable
+ * by the driver (YUV planar formats) but serve as a base image for
+ * creating sub-images for the different planes within the image.
+ *
+ * R8, GR88 and NONE should not be used with createImageFromName or
+ * createImage, and are returned by query from sub images created with
+ * createImageFromNames (NONE, see above) and fromPlane (R8 & GR88).
*/
#define __DRI_IMAGE_FORMAT_RGB565 0x1001
#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
+#define __DRI_IMAGE_FORMAT_ABGR8888 0x1004
+#define __DRI_IMAGE_FORMAT_XBGR8888 0x1005
+#define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */
+#define __DRI_IMAGE_FORMAT_GR88 0x1007
+#define __DRI_IMAGE_FORMAT_NONE 0x1008
+#define __DRI_IMAGE_FORMAT_XRGB2101010 0x1009
+#define __DRI_IMAGE_FORMAT_ARGB2101010 0x100a
+#define __DRI_IMAGE_FORMAT_SARGB8 0x100b
+#define __DRI_IMAGE_FORMAT_ARGB1555 0x100c
+#define __DRI_IMAGE_FORMAT_R16 0x100d
+#define __DRI_IMAGE_FORMAT_GR1616 0x100e
#define __DRI_IMAGE_USE_SHARE 0x0001
#define __DRI_IMAGE_USE_SCANOUT 0x0002
+#define __DRI_IMAGE_USE_CURSOR 0x0004 /* Deprecated */
+#define __DRI_IMAGE_USE_LINEAR 0x0008
+/* The buffer will only be read by an external process after SwapBuffers,
+ * in contrary to gbm buffers, front buffers and fake front buffers, which
+ * could be read after a flush."
+ */
+#define __DRI_IMAGE_USE_BACKBUFFER 0x0010
+
+
+#define __DRI_IMAGE_TRANSFER_READ 0x1
+#define __DRI_IMAGE_TRANSFER_WRITE 0x2
+#define __DRI_IMAGE_TRANSFER_READ_WRITE \
+ (__DRI_IMAGE_TRANSFER_READ | __DRI_IMAGE_TRANSFER_WRITE)
+
+/**
+ * Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h,
+ * GBM_FORMAT_* from gbm.h, and DRM_FORMAT_* from drm_fourcc.h. Used with
+ * createImageFromNames.
+ *
+ * \since 5
+ */
+
+#define __DRI_IMAGE_FOURCC_R8 0x20203852
+#define __DRI_IMAGE_FOURCC_GR88 0x38385247
+#define __DRI_IMAGE_FOURCC_ARGB1555 0x35315241
+#define __DRI_IMAGE_FOURCC_R16 0x20363152
+#define __DRI_IMAGE_FOURCC_GR1616 0x32335247
+#define __DRI_IMAGE_FOURCC_RGB565 0x36314752
+#define __DRI_IMAGE_FOURCC_ARGB8888 0x34325241
+#define __DRI_IMAGE_FOURCC_XRGB8888 0x34325258
+#define __DRI_IMAGE_FOURCC_ABGR8888 0x34324241
+#define __DRI_IMAGE_FOURCC_XBGR8888 0x34324258
+#define __DRI_IMAGE_FOURCC_SARGB8888 0x83324258
+#define __DRI_IMAGE_FOURCC_YUV410 0x39565559
+#define __DRI_IMAGE_FOURCC_YUV411 0x31315559
+#define __DRI_IMAGE_FOURCC_YUV420 0x32315559
+#define __DRI_IMAGE_FOURCC_YUV422 0x36315559
+#define __DRI_IMAGE_FOURCC_YUV444 0x34325559
+#define __DRI_IMAGE_FOURCC_NV12 0x3231564e
+#define __DRI_IMAGE_FOURCC_NV16 0x3631564e
+#define __DRI_IMAGE_FOURCC_YUYV 0x56595559
+#define __DRI_IMAGE_FOURCC_UYVY 0x59565955
+
+#define __DRI_IMAGE_FOURCC_YVU410 0x39555659
+#define __DRI_IMAGE_FOURCC_YVU411 0x31315659
+#define __DRI_IMAGE_FOURCC_YVU420 0x32315659
+#define __DRI_IMAGE_FOURCC_YVU422 0x36315659
+#define __DRI_IMAGE_FOURCC_YVU444 0x34325659
+
+/**
+ * Queryable on images created by createImageFromNames.
+ *
+ * RGB and RGBA are may be usable directly as images but its still
+ * recommended to call fromPlanar with plane == 0.
+ *
+ * Y_U_V, Y_UV,Y_XUXV and Y_UXVX all requires call to fromPlanar to create
+ * usable sub-images, sampling from images return raw YUV data and
+ * color conversion needs to be done in the shader.
+ *
+ * \since 5
+ */
+
+#define __DRI_IMAGE_COMPONENTS_RGB 0x3001
+#define __DRI_IMAGE_COMPONENTS_RGBA 0x3002
+#define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003
+#define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004
+#define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005
+#define __DRI_IMAGE_COMPONENTS_Y_UXVX 0x3008
+#define __DRI_IMAGE_COMPONENTS_R 0x3006
+#define __DRI_IMAGE_COMPONENTS_RG 0x3007
+
/**
* queryImage attributes
#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
#define __DRI_IMAGE_ATTRIB_NAME 0x2002
+#define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */
+#define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */
+#define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005
+#define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */
+#define __DRI_IMAGE_ATTRIB_FD 0x2007 /* available in versions
+ * 7+. Each query will return a
+ * new fd. */
+#define __DRI_IMAGE_ATTRIB_FOURCC 0x2008 /* available in versions 11 */
+#define __DRI_IMAGE_ATTRIB_NUM_PLANES 0x2009 /* available in versions 11 */
+
+#define __DRI_IMAGE_ATTRIB_OFFSET 0x200A /* available in versions 13 */
+#define __DRI_IMAGE_ATTRIB_MODIFIER_LOWER 0x200B /* available in versions 14 */
+#define __DRI_IMAGE_ATTRIB_MODIFIER_UPPER 0x200C /* available in versions 14 */
+
+enum __DRIYUVColorSpace {
+ __DRI_YUV_COLOR_SPACE_UNDEFINED = 0,
+ __DRI_YUV_COLOR_SPACE_ITU_REC601 = 0x327F,
+ __DRI_YUV_COLOR_SPACE_ITU_REC709 = 0x3280,
+ __DRI_YUV_COLOR_SPACE_ITU_REC2020 = 0x3281
+};
+
+enum __DRISampleRange {
+ __DRI_YUV_RANGE_UNDEFINED = 0,
+ __DRI_YUV_FULL_RANGE = 0x3282,
+ __DRI_YUV_NARROW_RANGE = 0x3283
+};
+
+enum __DRIChromaSiting {
+ __DRI_YUV_CHROMA_SITING_UNDEFINED = 0,
+ __DRI_YUV_CHROMA_SITING_0 = 0x3284,
+ __DRI_YUV_CHROMA_SITING_0_5 = 0x3285
+};
+
+/**
+ * \name Reasons that __DRIimageExtensionRec::createImageFromTexture or
+ * __DRIimageExtensionRec::createImageFromDmaBufs might fail
+ */
+/*@{*/
+/** Success! */
+#define __DRI_IMAGE_ERROR_SUCCESS 0
+
+/** Memory allocation failure */
+#define __DRI_IMAGE_ERROR_BAD_ALLOC 1
+
+/** Client requested an invalid attribute */
+#define __DRI_IMAGE_ERROR_BAD_MATCH 2
+
+/** Client requested an invalid texture object */
+#define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
+
+/** Client requested an invalid pitch and/or offset */
+#define __DRI_IMAGE_ERROR_BAD_ACCESS 4
+/*@}*/
+
+/**
+ * \name Capabilities that might be returned by __DRIimageExtensionRec::getCapabilities
+ */
+/*@{*/
+#define __DRI_IMAGE_CAP_GLOBAL_NAMES 1
+/*@}*/
+
+/**
+ * blitImage flags
+ */
+
+#define __BLIT_FLAG_FLUSH 0x0001
+#define __BLIT_FLAG_FINISH 0x0002
+
+/**
+ * queryDmaBufFormatModifierAttribs attributes
+ */
+
+/* Available in version 16 */
+#define __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT 0x0001
typedef struct __DRIimageRec __DRIimage;
typedef struct __DRIimageExtensionRec __DRIimageExtension;
int name, int pitch,
void *loaderPrivate);
+ /* Deprecated since version 17; see createImageFromRenderbuffer2 */
__DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
int renderbuffer,
void *loaderPrivate);
void *loaderPrivate);
GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
+
+ /**
+ * The new __DRIimage will share the content with the old one, see dup(2).
+ */
+ __DRIimage *(*dupImage)(__DRIimage *image, void *loaderPrivate);
+
+ /**
+ * Validate that a __DRIimage can be used a certain way.
+ *
+ * \since 2
+ */
+ GLboolean (*validateUsage)(__DRIimage *image, unsigned int use);
+
+ /**
+ * Unlike createImageFromName __DRI_IMAGE_FORMAT is not but instead
+ * __DRI_IMAGE_FOURCC and strides are in bytes not pixels. Stride is
+ * also per block and not per pixel (for non-RGB, see gallium blocks).
+ *
+ * \since 5
+ */
+ __DRIimage *(*createImageFromNames)(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ int *names, int num_names,
+ int *strides, int *offsets,
+ void *loaderPrivate);
+
+ /**
+ * Create an image out of a sub-region of a parent image. This
+ * entry point lets us create individual __DRIimages for different
+ * planes in a planar buffer (typically yuv), for example. While a
+ * sub-image shares the underlying buffer object with the parent
+ * image and other sibling sub-images, the life times of parent and
+ * sub-images are not dependent. Destroying the parent or a
+ * sub-image doesn't affect other images. The underlying buffer
+ * object is free when no __DRIimage remains that references it.
+ *
+ * Sub-images may overlap, but rendering to overlapping sub-images
+ * is undefined.
+ *
+ * \since 5
+ */
+ __DRIimage *(*fromPlanar)(__DRIimage *image, int plane,
+ void *loaderPrivate);
+
+ /**
+ * Create image from texture.
+ *
+ * \since 6
+ */
+ __DRIimage *(*createImageFromTexture)(__DRIcontext *context,
+ int target,
+ unsigned texture,
+ int depth,
+ int level,
+ unsigned *error,
+ void *loaderPrivate);
+ /**
+ * Like createImageFromNames, but takes a prime fd instead.
+ *
+ * \since 7
+ */
+ __DRIimage *(*createImageFromFds)(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ int *fds, int num_fds,
+ int *strides, int *offsets,
+ void *loaderPrivate);
+
+ /**
+ * Like createImageFromFds, but takes additional attributes.
+ *
+ * For EGL_EXT_image_dma_buf_import.
+ *
+ * \since 8
+ */
+ __DRIimage *(*createImageFromDmaBufs)(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ int *fds, int num_fds,
+ int *strides, int *offsets,
+ enum __DRIYUVColorSpace color_space,
+ enum __DRISampleRange sample_range,
+ enum __DRIChromaSiting horiz_siting,
+ enum __DRIChromaSiting vert_siting,
+ unsigned *error,
+ void *loaderPrivate);
+
+ /**
+ * Blit a part of a __DRIimage to another and flushes
+ *
+ * flush_flag:
+ * 0: no flush
+ * __BLIT_FLAG_FLUSH: flush after the blit operation
+ * __BLIT_FLAG_FINISH: flush and wait the blit finished
+ *
+ * \since 9
+ */
+ void (*blitImage)(__DRIcontext *context, __DRIimage *dst, __DRIimage *src,
+ int dstx0, int dsty0, int dstwidth, int dstheight,
+ int srcx0, int srcy0, int srcwidth, int srcheight,
+ int flush_flag);
+
+ /**
+ * Query for general capabilities of the driver that concern
+ * buffer sharing and image importing.
+ *
+ * \since 10
+ */
+ int (*getCapabilities)(__DRIscreen *screen);
+
+ /**
+ * Returns a map of the specified region of a __DRIimage for the specified usage.
+ *
+ * flags may include __DRI_IMAGE_TRANSFER_READ, which will populate the
+ * mapping with the current buffer content. If __DRI_IMAGE_TRANSFER_READ
+ * is not included in the flags, the buffer content at map time is
+ * undefined. Users wanting to modify the mapping must include
+ * __DRI_IMAGE_TRANSFER_WRITE; if __DRI_IMAGE_TRANSFER_WRITE is not
+ * included, behaviour when writing the mapping is undefined.
+ *
+ * Returns the byte stride in *stride, and an opaque pointer to data
+ * tracking the mapping in **data, which must be passed to unmapImage().
+ *
+ * \since 12
+ */
+ void *(*mapImage)(__DRIcontext *context, __DRIimage *image,
+ int x0, int y0, int width, int height,
+ unsigned int flags, int *stride, void **data);
+
+ /**
+ * Unmap a previously mapped __DRIimage
+ *
+ * \since 12
+ */
+ void (*unmapImage)(__DRIcontext *context, __DRIimage *image, void *data);
+
+
+ /**
+ * Creates an image with implementation's favorite modifiers.
+ *
+ * This acts like createImage except there is a list of modifiers passed in
+ * which the implementation may selectively use to create the DRIimage. The
+ * result should be the implementation selects one modifier (perhaps it would
+ * hold on to a few and later pick).
+ *
+ * The created image should be destroyed with destroyImage().
+ *
+ * Returns the new DRIimage. The chosen modifier can be obtained later on
+ * and passed back to things like the kernel's AddFB2 interface.
+ *
+ * \sa __DRIimageRec::createImage
+ *
+ * \since 14
+ */
+ __DRIimage *(*createImageWithModifiers)(__DRIscreen *screen,
+ int width, int height, int format,
+ const uint64_t *modifiers,
+ const unsigned int modifier_count,
+ void *loaderPrivate);
+
+ /*
+ * Like createImageFromDmaBufs, but takes also format modifiers.
+ *
+ * For EGL_EXT_image_dma_buf_import_modifiers.
+ *
+ * \since 15
+ */
+ __DRIimage *(*createImageFromDmaBufs2)(__DRIscreen *screen,
+ int width, int height, int fourcc,
+ uint64_t modifier,
+ int *fds, int num_fds,
+ int *strides, int *offsets,
+ enum __DRIYUVColorSpace color_space,
+ enum __DRISampleRange sample_range,
+ enum __DRIChromaSiting horiz_siting,
+ enum __DRIChromaSiting vert_siting,
+ unsigned *error,
+ void *loaderPrivate);
+
+ /*
+ * dmabuf format query to support EGL_EXT_image_dma_buf_import_modifiers.
+ *
+ * \param max Maximum number of formats that can be accomodated into
+ * \param formats. If zero, no formats are returned -
+ * instead, the driver returns the total number of
+ * supported dmabuf formats in \param count.
+ * \param formats Buffer to fill formats into.
+ * \param count Count of formats returned, or, total number of
+ * supported formats in case \param max is zero.
+ *
+ * Returns true on success.
+ *
+ * \since 15
+ */
+ GLboolean (*queryDmaBufFormats)(__DRIscreen *screen, int max,
+ int *formats, int *count);
+
+ /*
+ * dmabuf format modifier query for a given format to support
+ * EGL_EXT_image_dma_buf_import_modifiers.
+ *
+ * \param fourcc The format to query modifiers for. If this format
+ * is not supported by the driver, return false.
+ * \param max Maximum number of modifiers that can be accomodated in
+ * \param modifiers. If zero, no modifiers are returned -
+ * instead, the driver returns the total number of
+ * modifiers for \param format in \param count.
+ * \param modifiers Buffer to fill modifiers into.
+ * \param count Count of the modifiers returned, or, total number of
+ * supported modifiers for \param fourcc in case
+ * \param max is zero.
+ *
+ * Returns true upon success.
+ *
+ * \since 15
+ */
+ GLboolean (*queryDmaBufModifiers)(__DRIscreen *screen, int fourcc,
+ int max, uint64_t *modifiers,
+ unsigned int *external_only,
+ int *count);
+
+ /**
+ * dmabuf format modifier attribute query for a given format and modifier.
+ *
+ * \param fourcc The format to query. If this format is not supported by
+ * the driver, return false.
+ * \param modifier The modifier to query. If this format+modifier is not
+ * supported by the driver, return false.
+ * \param attrib The __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB to query.
+ * \param value A pointer to where to store the result of the query.
+ *
+ * Returns true upon success.
+ *
+ * \since 16
+ */
+ GLboolean (*queryDmaBufFormatModifierAttribs)(__DRIscreen *screen,
+ uint32_t fourcc, uint64_t modifier,
+ int attrib, uint64_t *value);
+
+ /**
+ * Create a DRI image from the given renderbuffer.
+ *
+ * \param context the current DRI context
+ * \param renderbuffer the GL name of the renderbuffer
+ * \param loaderPrivate for callbacks into the loader related to the image
+ * \param error will be set to one of __DRI_IMAGE_ERROR_xxx
+ * \return the newly created image on success, or NULL otherwise
+ *
+ * \since 17
+ */
+ __DRIimage *(*createImageFromRenderbuffer2)(__DRIcontext *context,
+ int renderbuffer,
+ void *loaderPrivate,
+ unsigned *error);
};
struct __DRI2configQueryExtensionRec {
__DRIextension base;
- int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);
- int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);
- int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);
+ int (*configQueryb)(__DRIscreen *screen, const char *var, unsigned char *val);
+ int (*configQueryi)(__DRIscreen *screen, const char *var, int *val);
+ int (*configQueryf)(__DRIscreen *screen, const char *var, float *val);
+};
+
+/**
+ * Robust context driver extension.
+ *
+ * Existence of this extension means the driver can accept the
+ * \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
+ * \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in
+ * \c __DRIdri2ExtensionRec::createContextAttribs.
+ */
+#define __DRI2_ROBUSTNESS "DRI_Robustness"
+#define __DRI2_ROBUSTNESS_VERSION 1
+
+typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension;
+struct __DRIrobustnessExtensionRec {
+ __DRIextension base;
+};
+
+/**
+ * No-error context driver extension.
+ *
+ * Existence of this extension means the driver can accept the
+ * __DRI_CTX_FLAG_NO_ERROR flag.
+ */
+#define __DRI2_NO_ERROR "DRI_NoError"
+#define __DRI2_NO_ERROR_VERSION 1
+
+typedef struct __DRInoErrorExtensionRec {
+ __DRIextension base;
+} __DRInoErrorExtension;
+
+/**
+ * DRI config options extension.
+ *
+ * This extension provides the XML string containing driver options for use by
+ * the loader in supporting the driconf application.
+ *
+ * v2:
+ * - Add the getXml getter function which allows the driver more flexibility in
+ * how the XML is provided.
+ * - Deprecate the direct xml pointer. It is only provided as a fallback for
+ * older versions of libGL and must not be used by clients that are aware of
+ * the newer version. Future driver versions may set it to NULL.
+ */
+#define __DRI_CONFIG_OPTIONS "DRI_ConfigOptions"
+#define __DRI_CONFIG_OPTIONS_VERSION 2
+
+typedef struct __DRIconfigOptionsExtensionRec {
+ __DRIextension base;
+ const char *xml; /**< deprecated since v2, use getXml instead */
+
+ /**
+ * Get an XML string that describes available driver options for use by a
+ * config application.
+ *
+ * The returned string must be heap-allocated. The caller is responsible for
+ * freeing it.
+ */
+ char *(*getXml)(const char *driver_name);
+} __DRIconfigOptionsExtension;
+
+/**
+ * This extension provides a driver vtable to a set of common driver helper
+ * functions (driCoreExtension, driDRI2Extension) within the driver
+ * implementation, as opposed to having to pass them through a global
+ * variable.
+ *
+ * It is not intended to be public API to the actual loader, and the vtable
+ * layout may change at any time.
+ */
+#define __DRI_DRIVER_VTABLE "DRI_DriverVtable"
+#define __DRI_DRIVER_VTABLE_VERSION 1
+
+typedef struct __DRIDriverVtableExtensionRec {
+ __DRIextension base;
+ const struct __DriverAPIRec *vtable;
+} __DRIDriverVtableExtension;
+
+/**
+ * Query renderer driver extension
+ *
+ * This allows the window system layer (either EGL or GLX) to query aspects of
+ * hardware and driver support without creating a context.
+ */
+#define __DRI2_RENDERER_QUERY "DRI_RENDERER_QUERY"
+#define __DRI2_RENDERER_QUERY_VERSION 1
+
+#define __DRI2_RENDERER_VENDOR_ID 0x0000
+#define __DRI2_RENDERER_DEVICE_ID 0x0001
+#define __DRI2_RENDERER_VERSION 0x0002
+#define __DRI2_RENDERER_ACCELERATED 0x0003
+#define __DRI2_RENDERER_VIDEO_MEMORY 0x0004
+#define __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE 0x0005
+#define __DRI2_RENDERER_PREFERRED_PROFILE 0x0006
+#define __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION 0x0007
+#define __DRI2_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION 0x0008
+#define __DRI2_RENDERER_OPENGL_ES_PROFILE_VERSION 0x0009
+#define __DRI2_RENDERER_OPENGL_ES2_PROFILE_VERSION 0x000a
+#define __DRI2_RENDERER_HAS_TEXTURE_3D 0x000b
+/* Whether there is an sRGB format support for every supported 32-bit UNORM
+ * color format.
+ */
+#define __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB 0x000c
+
+typedef struct __DRI2rendererQueryExtensionRec __DRI2rendererQueryExtension;
+struct __DRI2rendererQueryExtensionRec {
+ __DRIextension base;
+
+ int (*queryInteger)(__DRIscreen *screen, int attribute, unsigned int *val);
+ int (*queryString)(__DRIscreen *screen, int attribute, const char **val);
};
+
+/**
+ * Image Loader extension. Drivers use this to allocate color buffers
+ */
+
+enum __DRIimageBufferMask {
+ __DRI_IMAGE_BUFFER_BACK = (1 << 0),
+ __DRI_IMAGE_BUFFER_FRONT = (1 << 1)
+};
+
+struct __DRIimageList {
+ uint32_t image_mask;
+ __DRIimage *back;
+ __DRIimage *front;
+};
+
+#define __DRI_IMAGE_LOADER "DRI_IMAGE_LOADER"
+#define __DRI_IMAGE_LOADER_VERSION 3
+
+struct __DRIimageLoaderExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Allocate color buffers.
+ *
+ * \param driDrawable
+ * \param width Width of allocated buffers
+ * \param height Height of allocated buffers
+ * \param format one of __DRI_IMAGE_FORMAT_*
+ * \param stamp Address of variable to be updated when
+ * getBuffers must be called again
+ * \param loaderPrivate The loaderPrivate for driDrawable
+ * \param buffer_mask Set of buffers to allocate
+ * \param buffers Returned buffers
+ */
+ int (*getBuffers)(__DRIdrawable *driDrawable,
+ unsigned int format,
+ uint32_t *stamp,
+ void *loaderPrivate,
+ uint32_t buffer_mask,
+ struct __DRIimageList *buffers);
+
+ /**
+ * Flush pending front-buffer rendering
+ *
+ * Any rendering that has been performed to the
+ * fake front will be flushed to the front
+ *
+ * \param driDrawable Drawable whose front-buffer is to be flushed
+ * \param loaderPrivate Loader's private data that was previously passed
+ * into __DRIdri2ExtensionRec::createNewDrawable
+ */
+ void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
+
+ /**
+ * Return a loader capability value. If the loader doesn't know the enum,
+ * it will return 0.
+ *
+ * \since 2
+ */
+ unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap);
+
+ /**
+ * Flush swap buffers
+ *
+ * Make sure any outstanding swap buffers have been submitted to the
+ * device.
+ *
+ * \param driDrawable Drawable whose swaps need to be flushed
+ * \param loaderPrivate Loader's private data that was previously passed
+ * into __DRIdri2ExtensionRec::createNewDrawable
+ *
+ * \since 3
+ */
+ void (*flushSwapBuffers)(__DRIdrawable *driDrawable, void *loaderPrivate);
+};
+
+/**
+ * DRI extension.
+ */
+
+#define __DRI_IMAGE_DRIVER "DRI_IMAGE_DRIVER"
+#define __DRI_IMAGE_DRIVER_VERSION 1
+
+struct __DRIimageDriverExtensionRec {
+ __DRIextension base;
+
+ /* Common DRI functions, shared with DRI2 */
+ __DRIcreateNewScreen2Func createNewScreen2;
+ __DRIcreateNewDrawableFunc createNewDrawable;
+ __DRIcreateContextAttribsFunc createContextAttribs;
+ __DRIgetAPIMaskFunc getAPIMask;
+};
+
+/**
+ * Background callable loader extension.
+ *
+ * Loaders expose this extension to indicate to drivers that they are capable
+ * of handling callbacks from the driver's background drawing threads.
+ */
+#define __DRI_BACKGROUND_CALLABLE "DRI_BackgroundCallable"
+#define __DRI_BACKGROUND_CALLABLE_VERSION 1
+
+typedef struct __DRIbackgroundCallableExtensionRec __DRIbackgroundCallableExtension;
+struct __DRIbackgroundCallableExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Indicate that this thread is being used by the driver as a background
+ * drawing thread which may make callbacks to the loader.
+ *
+ * \param loaderPrivate is the value that was passed to to the driver when
+ * the context was created. This can be used by the loader to identify
+ * which context any callbacks are associated with.
+ *
+ * If this function is called more than once from any given thread, each
+ * subsequent call overrides the loaderPrivate data that was passed in the
+ * previous call. The driver can take advantage of this to re-use a
+ * background thread to perform drawing on behalf of multiple contexts.
+ *
+ * It is permissible for the driver to call this function from a
+ * non-background thread (i.e. a thread that has already been bound to a
+ * context using __DRIcoreExtensionRec::bindContext()); when this happens,
+ * the \c loaderPrivate pointer must be equal to the pointer that was
+ * passed to the driver when the currently bound context was created.
+ *
+ * This call should execute quickly enough that the driver can call it with
+ * impunity whenever a background thread starts performing drawing
+ * operations (e.g. it should just set a thread-local variable).
+ */
+ void (*setBackgroundContext)(void *loaderPrivate);
+
+ /**
+ * Indicate that it is multithread safe to use glthread. For GLX/EGL
+ * platforms using Xlib, that involves calling XInitThreads, before
+ * opening an X display.
+ *
+ * Note: only supported if extension version is at least 2.
+ *
+ * \param loaderPrivate is the value that was passed to to the driver when
+ * the context was created. This can be used by the loader to identify
+ * which context any callbacks are associated with.
+ */
+ GLboolean (*isThreadSafe)(void *loaderPrivate);
+};
+
#endif
projects / mesa.git / blobdiff