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Diffstat (limited to 'gl/internal/dri_interface.h')
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1 files changed, 1147 insertions, 0 deletions
diff --git a/gl/internal/dri_interface.h b/gl/internal/dri_interface.h new file mode 100644 index 000000000..e4ead73dd --- /dev/null +++ b/gl/internal/dri_interface.h @@ -0,0 +1,1147 @@ +/* + * 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 + +#include <stdint.h> + +/** + * \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; +typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension; + +/*@}*/ + + +/** + * 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 4 + +#define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */ +#define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */ + +enum __DRI2throttleReason { + __DRI2_THROTTLE_SWAPBUFFER, + __DRI2_THROTTLE_COPYSUBBUFFER, + __DRI2_THROTTLE_FLUSHFRONT +}; + +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); + + /** + * 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. + */ +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 3 + +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); + + /** + * 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); +}; + +/** + * 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 */ +#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; + 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 3 + +#define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */ +#define __DRI_API_GLES 1 /**< OpenGL ES 1.x */ +#define __DRI_API_GLES2 2 /**< OpenGL ES 2.0 or 3.0 */ +#define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */ + +#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 + +/** + * \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; + + __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); + + /** + * Create a context for a particular API with a set of attributes + * + * \since version 3 + * + * \sa __DRIswrastExtensionRec::createContextAttribs + */ + __DRIcontext *(*createContextAttribs)(__DRIscreen *screen, + int api, + const __DRIconfig *config, + __DRIcontext *shared, + unsigned num_attribs, + const uint32_t *attribs, + unsigned *error, + void *loaderPrivate); +}; + + +/** + * This extension provides functionality to enable various EGLImage + * extensions. + */ +#define __DRI_IMAGE "DRI_IMAGE" +#define __DRI_IMAGE_VERSION 5 + +/** + * 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 createImageFormName 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_USE_SHARE 0x0001 +#define __DRI_IMAGE_USE_SCANOUT 0x0002 +#define __DRI_IMAGE_USE_CURSOR 0x0004 /* Depricated */ + + +/** + * Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h + * and GBM_FORMAT_* from gbm.h, used with createImageFromNames. + * + * \since 5 + */ + +#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_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 + + +/** + * 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 and Y_XUXV 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 + + +/** + * 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+ */ + +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); + + /** + * 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); +}; + + +/** + * 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); +}; + +/** + * 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; +}; + +#endif |