diff options
Diffstat (limited to 'gl/internal')
| -rw-r--r-- | gl/internal/dri_interface.h | 889 |
1 files changed, 889 insertions, 0 deletions
diff --git a/gl/internal/dri_interface.h b/gl/internal/dri_interface.h new file mode 100644 index 000000000..8098a2eb9 --- /dev/null +++ b/gl/internal/dri_interface.h @@ -0,0 +1,889 @@ +/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 Red Hat, Inc.
+ * (C) Copyright IBM Corporation 2004
+ * 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
+ * on 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
+ * THE COPYRIGHT HOLDERS AND/OR THEIR 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.
+ */
+
+/**
+ * \file dri_interface.h
+ *
+ * This file contains all the types and functions that define the interface
+ * between a DRI driver and driver loader. Currently, the most common driver
+ * loader is the XFree86 libGL.so. However, other loaders do exist, and in
+ * the future the server-side libglx.a will also be a loader.
+ *
+ * \author Kevin E. Martin <kevin@precisioninsight.com>
+ * \author Ian Romanick <idr@us.ibm.com>
+ * \author Kristian Høgsberg <krh@redhat.com>
+ */
+
+#ifndef DRI_INTERFACE_H
+#define DRI_INTERFACE_H
+
+/* For archs with no drm.h */
+#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__) || defined(_MSC_VER)
+#ifndef __NOT_HAVE_DRM_H
+#define __NOT_HAVE_DRM_H
+#endif
+#endif
+
+#ifndef __NOT_HAVE_DRM_H
+#include <drm.h>
+#else
+typedef unsigned int drm_context_t;
+typedef unsigned int drm_drawable_t;
+typedef struct drm_clip_rect drm_clip_rect_t;
+#endif
+
+/**
+ * \name DRI interface structures
+ *
+ * The following structures define the interface between the GLX client
+ * side library and the DRI (direct rendering infrastructure).
+ */
+/*@{*/
+typedef struct __DRIdisplayRec __DRIdisplay;
+typedef struct __DRIscreenRec __DRIscreen;
+typedef struct __DRIcontextRec __DRIcontext;
+typedef struct __DRIdrawableRec __DRIdrawable;
+typedef struct __DRIconfigRec __DRIconfig;
+typedef struct __DRIframebufferRec __DRIframebuffer;
+typedef struct __DRIversionRec __DRIversion;
+
+typedef struct __DRIcoreExtensionRec __DRIcoreExtension;
+typedef struct __DRIextensionRec __DRIextension;
+typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension;
+typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension;
+typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension;
+typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension;
+typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension;
+typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension;
+typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension;
+typedef struct __DRIswrastExtensionRec __DRIswrastExtension;
+typedef struct __DRIbufferRec __DRIbuffer;
+typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
+typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
+typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
+
+/*@}*/
+
+
+/**
+ * Extension struct. Drivers 'inherit' from this struct by embedding
+ * it as the first element in the extension struct.
+ *
+ * We never break API in for a DRI extension. If we need to change
+ * the way things work in a non-backwards compatible manner, we
+ * introduce a new extension. During a transition period, we can
+ * leave both the old and the new extension in the driver, which
+ * allows us to move to the new interface without having to update the
+ * loader(s) in lock step.
+ *
+ * However, we can add entry points to an extension over time as long
+ * as we don't break the old ones. As we add entry points to an
+ * extension, we increase the version number. The corresponding
+ * #define can be used to guard code that accesses the new entry
+ * points at compile time and the version field in the extension
+ * struct can be used at run-time to determine how to use the
+ * extension.
+ */
+struct __DRIextensionRec {
+ const char *name;
+ int version;
+};
+
+/**
+ * The first set of extension are the screen extensions, returned by
+ * __DRIcore::getExtensions(). This entry point will return a list of
+ * extensions and the loader can use the ones it knows about by
+ * casting them to more specific extensions and advertising any GLX
+ * extensions the DRI extensions enables.
+ */
+
+/**
+ * Used by drivers to indicate support for setting the read drawable.
+ */
+#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
+#define __DRI_READ_DRAWABLE_VERSION 1
+
+/**
+ * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
+ */
+#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
+#define __DRI_COPY_SUB_BUFFER_VERSION 1
+struct __DRIcopySubBufferExtensionRec {
+ __DRIextension base;
+ void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
+};
+
+/**
+ * Used by drivers that implement the GLX_SGI_swap_control or
+ * GLX_MESA_swap_control extension.
+ */
+#define __DRI_SWAP_CONTROL "DRI_SwapControl"
+#define __DRI_SWAP_CONTROL_VERSION 1
+struct __DRIswapControlExtensionRec {
+ __DRIextension base;
+ void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
+ unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
+};
+
+/**
+ * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
+ */
+#define __DRI_FRAME_TRACKING "DRI_FrameTracking"
+#define __DRI_FRAME_TRACKING_VERSION 1
+struct __DRIframeTrackingExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Enable or disable frame usage tracking.
+ *
+ * \since Internal API version 20030317.
+ */
+ int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);
+
+ /**
+ * Retrieve frame usage information.
+ *
+ * \since Internal API version 20030317.
+ */
+ int (*queryFrameTracking)(__DRIdrawable *drawable,
+ int64_t * sbc, int64_t * missedFrames,
+ float * lastMissedUsage, float * usage);
+};
+
+
+/**
+ * Used by drivers that implement the GLX_SGI_video_sync extension.
+ */
+#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
+#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
+struct __DRImediaStreamCounterExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Wait for the MSC to equal target_msc, or, if that has already passed,
+ * the next time (MSC % divisor) is equal to remainder. If divisor is
+ * zero, the function will return as soon as MSC is greater than or equal
+ * to target_msc.
+ */
+ int (*waitForMSC)(__DRIdrawable *drawable,
+ int64_t target_msc, int64_t divisor, int64_t remainder,
+ int64_t * msc, int64_t * sbc);
+
+ /**
+ * Get the number of vertical refreshes since some point in time before
+ * this function was first called (i.e., system start up).
+ */
+ int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
+ int64_t *msc);
+};
+
+
+#define __DRI_TEX_OFFSET "DRI_TexOffset"
+#define __DRI_TEX_OFFSET_VERSION 1
+struct __DRItexOffsetExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Method to override base texture image with a driver specific 'offset'.
+ * The depth passed in allows e.g. to ignore the alpha channel of texture
+ * images where the non-alpha components don't occupy a whole texel.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX.
+ */
+ void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
+ unsigned long long offset, GLint depth, GLuint pitch);
+};
+
+
+/* Valid values for format in the setTexBuffer2 function below. These
+ * values match the GLX tokens for compatibility reasons, but we
+ * define them here since the DRI interface can't depend on GLX. */
+#define __DRI_TEXTURE_FORMAT_NONE 0x20D8
+#define __DRI_TEXTURE_FORMAT_RGB 0x20D9
+#define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
+
+#define __DRI_TEX_BUFFER "DRI_TexBuffer"
+#define __DRI_TEX_BUFFER_VERSION 2
+struct __DRItexBufferExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Method to override base texture image with the contents of a
+ * __DRIdrawable.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
+ * setTexBuffer2 in version 2 of this interface
+ */
+ void (*setTexBuffer)(__DRIcontext *pDRICtx,
+ GLint target,
+ __DRIdrawable *pDraw);
+
+ /**
+ * Method to override base texture image with the contents of a
+ * __DRIdrawable, including the required texture format attribute.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX.
+ */
+ void (*setTexBuffer2)(__DRIcontext *pDRICtx,
+ GLint target,
+ GLint format,
+ __DRIdrawable *pDraw);
+ /**
+ * Method to release texture buffer in case some special platform
+ * need this.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX.
+ */
+ void (*releaseTexBuffer)(__DRIcontext *pDRICtx,
+ GLint target,
+ __DRIdrawable *pDraw);
+};
+
+/**
+ * Used by drivers that implement DRI2
+ */
+#define __DRI2_FLUSH "DRI2_Flush"
+#define __DRI2_FLUSH_VERSION 3
+struct __DRI2flushExtensionRec {
+ __DRIextension base;
+ void (*flush)(__DRIdrawable *drawable);
+
+ /**
+ * Ask the driver to call getBuffers/getBuffersWithFormat before
+ * it starts rendering again.
+ *
+ * \param drawable the drawable to invalidate
+ *
+ * \since 3
+ */
+ void (*invalidate)(__DRIdrawable *drawable);
+};
+
+
+/**
+ * XML document describing the configuration options supported by the
+ * driver.
+ */
+extern const char __driConfigOptions[];
+
+/*@}*/
+
+/**
+ * The following extensions describe loader features that the DRI
+ * driver can make use of. Some of these are mandatory, such as the
+ * getDrawableInfo extension for DRI and the DRI Loader extensions for
+ * DRI2, while others are optional, and if present allow the driver to
+ * expose certain features. The loader pass in a NULL terminated
+ * array of these extensions to the driver in the createNewScreen
+ * constructor.
+ */
+
+typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
+typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
+typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
+typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
+typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
+
+
+/**
+ * Callback to getDrawableInfo protocol
+ */
+#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
+#define __DRI_GET_DRAWABLE_INFO_VERSION 1
+struct __DRIgetDrawableInfoExtensionRec {
+ __DRIextension base;
+
+ /**
+ * This function is used to get information about the position, size, and
+ * clip rects of a drawable.
+ */
+ GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
+ unsigned int * index, unsigned int * stamp,
+ int * x, int * y, int * width, int * height,
+ int * numClipRects, drm_clip_rect_t ** pClipRects,
+ int * backX, int * backY,
+ int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
+ void *loaderPrivate);
+};
+
+typedef int int32_t;
+
+/**
+ * Callback to get system time for media stream counter extensions.
+ */
+#define __DRI_SYSTEM_TIME "DRI_SystemTime"
+#define __DRI_SYSTEM_TIME_VERSION 1
+struct __DRIsystemTimeExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Get the 64-bit unadjusted system time (UST).
+ */
+ int (*getUST)(int64_t * ust);
+
+ /**
+ * Get the media stream counter (MSC) rate.
+ *
+ * Matching the definition in GLX_OML_sync_control, this function returns
+ * the rate of the "media stream counter". In practical terms, this is
+ * the frame refresh rate of the display.
+ */
+ GLboolean (*getMSCRate)(__DRIdrawable *draw,
+ int32_t * numerator, int32_t * denominator,
+ void *loaderPrivate);
+};
+
+/**
+ * Damage reporting
+ */
+#define __DRI_DAMAGE "DRI_Damage"
+#define __DRI_DAMAGE_VERSION 1
+struct __DRIdamageExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Reports areas of the given drawable which have been modified by the
+ * driver.
+ *
+ * \param drawable which the drawing was done to.
+ * \param rects rectangles affected, with the drawable origin as the
+ * origin.
+ * \param x X offset of the drawable within the screen (used in the
+ * front_buffer case)
+ * \param y Y offset of the drawable within the screen.
+ * \param front_buffer boolean flag for whether the drawing to the
+ * drawable was actually done directly to the front buffer (instead
+ * of backing storage, for example)
+ * \param loaderPrivate the data passed in at createNewDrawable time
+ */
+ void (*reportDamage)(__DRIdrawable *draw,
+ int x, int y,
+ drm_clip_rect_t *rects, int num_rects,
+ GLboolean front_buffer,
+ void *loaderPrivate);
+};
+
+#define __DRI_SWRAST_IMAGE_OP_DRAW 1
+#define __DRI_SWRAST_IMAGE_OP_CLEAR 2
+#define __DRI_SWRAST_IMAGE_OP_SWAP 3
+
+/**
+ * SWRast Loader extension.
+ */
+#define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
+#define __DRI_SWRAST_LOADER_VERSION 1
+struct __DRIswrastLoaderExtensionRec {
+ __DRIextension base;
+
+ /*
+ * Drawable position and size
+ */
+ void (*getDrawableInfo)(__DRIdrawable *drawable,
+ int *x, int *y, int *width, int *height,
+ void *loaderPrivate);
+
+ /**
+ * Put image to drawable
+ */
+ void (*putImage)(__DRIdrawable *drawable, int op,
+ int x, int y, int width, int height,
+ char *data, void *loaderPrivate);
+
+ /**
+ * Get image from readable
+ */
+ void (*getImage)(__DRIdrawable *readable,
+ int x, int y, int width, int height,
+ char *data, void *loaderPrivate);
+};
+
+/**
+ * Invalidate loader extension. The presence of this extension
+ * indicates to the DRI driver that the loader will call invalidate in
+ * the __DRI2_FLUSH extension, whenever the needs to query for new
+ * buffers. This means that the DRI driver can drop the polling in
+ * glViewport().
+ *
+ * The extension doesn't provide any functionality, it's only use to
+ * indicate to the driver that it can use the new semantics. A DRI
+ * driver can use this to switch between the different semantics or
+ * just refuse to initialize if this extension isn't present.
+ */
+#define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
+#define __DRI_USE_INVALIDATE_VERSION 1
+
+typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension;
+struct __DRIuseInvalidateExtensionRec {
+ __DRIextension base;
+};
+
+/**
+ * The remaining extensions describe driver extensions, immediately
+ * available interfaces provided by the driver. To start using the
+ * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
+ * the extension you need in the array.
+ */
+#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
+
+/**
+ * Tokens for __DRIconfig attribs. A number of attributes defined by
+ * GLX or EGL standards are not in the table, as they must be provided
+ * by the loader. For example, FBConfig ID or visual ID, drawable type.
+ */
+
+#define __DRI_ATTRIB_BUFFER_SIZE 1
+#define __DRI_ATTRIB_LEVEL 2
+#define __DRI_ATTRIB_RED_SIZE 3
+#define __DRI_ATTRIB_GREEN_SIZE 4
+#define __DRI_ATTRIB_BLUE_SIZE 5
+#define __DRI_ATTRIB_LUMINANCE_SIZE 6
+#define __DRI_ATTRIB_ALPHA_SIZE 7
+#define __DRI_ATTRIB_ALPHA_MASK_SIZE 8
+#define __DRI_ATTRIB_DEPTH_SIZE 9
+#define __DRI_ATTRIB_STENCIL_SIZE 10
+#define __DRI_ATTRIB_ACCUM_RED_SIZE 11
+#define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12
+#define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13
+#define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14
+#define __DRI_ATTRIB_SAMPLE_BUFFERS 15
+#define __DRI_ATTRIB_SAMPLES 16
+#define __DRI_ATTRIB_RENDER_TYPE 17
+#define __DRI_ATTRIB_CONFIG_CAVEAT 18
+#define __DRI_ATTRIB_CONFORMANT 19
+#define __DRI_ATTRIB_DOUBLE_BUFFER 20
+#define __DRI_ATTRIB_STEREO 21
+#define __DRI_ATTRIB_AUX_BUFFERS 22
+#define __DRI_ATTRIB_TRANSPARENT_TYPE 23
+#define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24
+#define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25
+#define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26
+#define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27
+#define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28
+#define __DRI_ATTRIB_FLOAT_MODE 29
+#define __DRI_ATTRIB_RED_MASK 30
+#define __DRI_ATTRIB_GREEN_MASK 31
+#define __DRI_ATTRIB_BLUE_MASK 32
+#define __DRI_ATTRIB_ALPHA_MASK 33
+#define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34
+#define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35
+#define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36
+#define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37
+#define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38
+#define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39
+#define __DRI_ATTRIB_SWAP_METHOD 40
+#define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41
+#define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42
+#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43
+#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44
+#define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45
+#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
+#define __DRI_ATTRIB_YINVERTED 47
+#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
+
+/* __DRI_ATTRIB_RENDER_TYPE */
+#define __DRI_ATTRIB_RGBA_BIT 0x01
+#define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
+#define __DRI_ATTRIB_LUMINANCE_BIT 0x04
+
+/* __DRI_ATTRIB_CONFIG_CAVEAT */
+#define __DRI_ATTRIB_SLOW_BIT 0x01
+#define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02
+
+/* __DRI_ATTRIB_TRANSPARENT_TYPE */
+#define __DRI_ATTRIB_TRANSPARENT_RGB 0x00
+#define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01
+
+/* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
+#define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01
+#define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
+#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
+
+/**
+ * This extension defines the core DRI functionality.
+ */
+#define __DRI_CORE "DRI_Core"
+#define __DRI_CORE_VERSION 1
+
+struct __DRIcoreExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen, int fd,
+ unsigned int sarea_handle,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driverConfigs,
+ void *loaderPrivate);
+
+ void (*destroyScreen)(__DRIscreen *screen);
+
+ const __DRIextension **(*getExtensions)(__DRIscreen *screen);
+
+ int (*getConfigAttrib)(const __DRIconfig *config,
+ unsigned int attrib,
+ unsigned int *value);
+
+ int (*indexConfigAttrib)(const __DRIconfig *config, int index,
+ unsigned int *attrib, unsigned int *value);
+
+ __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ unsigned int drawable_id,
+ unsigned int head,
+ void *loaderPrivate);
+
+ void (*destroyDrawable)(__DRIdrawable *drawable);
+
+ void (*swapBuffers)(__DRIdrawable *drawable);
+
+ __DRIcontext *(*createNewContext)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ void *loaderPrivate);
+
+ int (*copyContext)(__DRIcontext *dest,
+ __DRIcontext *src,
+ unsigned long mask);
+
+ void (*destroyContext)(__DRIcontext *context);
+
+ int (*bindContext)(__DRIcontext *ctx,
+ __DRIdrawable *pdraw,
+ __DRIdrawable *pread);
+
+ int (*unbindContext)(__DRIcontext *ctx);
+};
+
+/**
+ * Stored version of some component (i.e., server-side DRI module, kernel-side
+ * DRM, etc.).
+ *
+ * \todo
+ * There are several data structures that explicitly store a major version,
+ * minor version, and patch level. These structures should be modified to
+ * have a \c __DRIversionRec instead.
+ */
+struct __DRIversionRec {
+ int major; /**< Major version number. */
+ int minor; /**< Minor version number. */
+ int patch; /**< Patch-level. */
+};
+
+/**
+ * Framebuffer information record. Used by libGL to communicate information
+ * about the framebuffer to the driver's \c __driCreateNewScreen function.
+ *
+ * In XFree86, most of this information is derrived from data returned by
+ * calling \c XF86DRIGetDeviceInfo.
+ *
+ * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
+ * __driUtilCreateNewScreen CallCreateNewScreen
+ *
+ * \bug This structure could be better named.
+ */
+struct __DRIframebufferRec {
+ unsigned char *base; /**< Framebuffer base address in the CPU's
+ * address space. This value is calculated by
+ * calling \c drmMap on the framebuffer handle
+ * returned by \c XF86DRIGetDeviceInfo (or a
+ * similar function).
+ */
+ int size; /**< Framebuffer size, in bytes. */
+ int stride; /**< Number of bytes from one line to the next. */
+ int width; /**< Pixel width of the framebuffer. */
+ int height; /**< Pixel height of the framebuffer. */
+ int dev_priv_size; /**< Size of the driver's dev-priv structure. */
+ void *dev_priv; /**< Pointer to the driver's dev-priv structure. */
+};
+
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for legacy DRI functionality. This is used in
+ * conjunction with the core extension.
+ */
+#define __DRI_LEGACY "DRI_Legacy"
+#define __DRI_LEGACY_VERSION 1
+
+struct __DRIlegacyExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen,
+ const __DRIversion *ddx_version,
+ const __DRIversion *dri_version,
+ const __DRIversion *drm_version,
+ const __DRIframebuffer *frame_buffer,
+ void *pSAREA, int fd,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
+ __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ drm_drawable_t hwDrawable,
+ int renderType, const int *attrs,
+ void *loaderPrivate);
+
+ __DRIcontext *(*createNewContext)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ int render_type,
+ __DRIcontext *shared,
+ drm_context_t hwContext,
+ void *loaderPrivate);
+};
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for swrast DRI functionality. This is used in
+ * conjunction with the core extension.
+ */
+#define __DRI_SWRAST "DRI_SWRast"
+#define __DRI_SWRAST_VERSION 2
+
+struct __DRIswrastExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
+ __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ void *loaderPrivate);
+
+ /* Since version 2 */
+ __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
+ int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ void *data);
+};
+
+/**
+ * DRI2 Loader extension.
+ */
+#define __DRI_BUFFER_FRONT_LEFT 0
+#define __DRI_BUFFER_BACK_LEFT 1
+#define __DRI_BUFFER_FRONT_RIGHT 2
+#define __DRI_BUFFER_BACK_RIGHT 3
+#define __DRI_BUFFER_DEPTH 4
+#define __DRI_BUFFER_STENCIL 5
+#define __DRI_BUFFER_ACCUM 6
+#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 */
+
+struct __DRIbufferRec {
+ unsigned int attachment;
+ unsigned int name;
+ unsigned int pitch;
+ unsigned int cpp;
+ unsigned int flags;
+};
+
+#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
+#define __DRI_DRI2_LOADER_VERSION 3
+struct __DRIdri2LoaderExtensionRec {
+ __DRIextension base;
+
+ __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate);
+
+ /**
+ * Flush pending front-buffer rendering
+ *
+ * Any rendering that has been performed to the
+ * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
+ * \c __DRI_BUFFER_FRONT_LEFT.
+ *
+ * \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);
+
+
+ /**
+ * Get list of buffers from the server
+ *
+ * Gets a list of buffer for the specified set of attachments. Unlike
+ * \c ::getBuffers, this function takes a list of attachments paired with
+ * opaque \c unsigned \c int value describing the format of the buffer.
+ * It is the responsibility of the caller to know what the service that
+ * allocates the buffers will expect to receive for the format.
+ *
+ * \param driDrawable Drawable whose buffers are being queried.
+ * \param width Output where the width of the buffers is stored.
+ * \param height Output where the height of the buffers is stored.
+ * \param attachments List of pairs of attachment ID and opaque format
+ * requested for the drawable.
+ * \param count Number of attachment / format pairs stored in
+ * \c attachments.
+ * \param loaderPrivate Loader's private data that was previously passed
+ * into __DRIdri2ExtensionRec::createNewDrawable.
+ */
+ __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate);
+};
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for DRI2.
+ */
+#define __DRI_DRI2 "DRI_DRI2"
+#define __DRI_DRI2_VERSION 2
+
+#define __DRI_API_OPENGL 0
+#define __DRI_API_GLES 1
+#define __DRI_API_GLES2 2
+
+struct __DRIdri2ExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen, int fd,
+ const __DRIextension **extensions,
+ 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);
+
+ /* Since version 2 */
+ unsigned int (*getAPIMask)(__DRIscreen *screen);
+
+ __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);
+};
+
+
+/**
+ * This extension provides functionality to enable various EGLImage
+ * extensions.
+ */
+#define __DRI_IMAGE "DRI_IMAGE"
+#define __DRI_IMAGE_VERSION 1
+
+/**
+ * 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.
+ */
+#define __DRI_IMAGE_FORMAT_RGB565 0x1001
+#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
+#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
+
+#define __DRI_IMAGE_USE_SHARE 0x0001
+#define __DRI_IMAGE_USE_SCANOUT 0x0002
+
+/**
+ * queryImage attributes
+ */
+
+#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
+#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
+#define __DRI_IMAGE_ATTRIB_NAME 0x2002
+
+typedef struct __DRIimageRec __DRIimage;
+typedef struct __DRIimageExtensionRec __DRIimageExtension;
+struct __DRIimageExtensionRec {
+ __DRIextension base;
+
+ __DRIimage *(*createImageFromName)(__DRIscreen *screen,
+ int width, int height, int format,
+ int name, int pitch,
+ void *loaderPrivate);
+
+ __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
+ int renderbuffer,
+ void *loaderPrivate);
+
+ void (*destroyImage)(__DRIimage *image);
+
+ __DRIimage *(*createImage)(__DRIscreen *screen,
+ int width, int height, int format,
+ unsigned int use,
+ void *loaderPrivate);
+
+ GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
+};
+
+
+/**
+ * This extension must be implemented by the loader and passed to the
+ * driver at screen creation time. The EGLImage entry points in the
+ * various client APIs take opaque EGLImage handles and use this
+ * extension to map them to a __DRIimage. At version 1, this
+ * extensions allows mapping EGLImage pointers to __DRIimage pointers,
+ * but future versions could support other EGLImage-like, opaque types
+ * with new lookup functions.
+ */
+#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
+#define __DRI_IMAGE_LOOKUP_VERSION 1
+
+typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;
+struct __DRIimageLookupExtensionRec {
+ __DRIextension base;
+
+ __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,
+ void *loaderPrivate);
+};
+
+/**
+ * This extension allows for common DRI2 options
+ */
+#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
+#define __DRI2_CONFIG_QUERY_VERSION 1
+
+typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;
+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);
+};
+#endif
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