diff options
Diffstat (limited to 'src/gallium/winsys/drm/intel/egl/intel_egl.c')
| -rw-r--r-- | src/gallium/winsys/drm/intel/egl/intel_egl.c | 796 |
1 files changed, 796 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/intel/egl/intel_egl.c b/src/gallium/winsys/drm/intel/egl/intel_egl.c new file mode 100644 index 0000000000..3204ed3131 --- /dev/null +++ b/src/gallium/winsys/drm/intel/egl/intel_egl.c @@ -0,0 +1,796 @@ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <stdint.h> + +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglglobals.h" +#include "eglmode.h" +#include "eglscreen.h" +#include "eglsurface.h" +#include "egllog.h" + +#include "intel_egl.h" + +#include "xf86drm.h" +#include "xf86drmMode.h" + +#include "intel_context.h" + +#include "state_tracker/st_public.h" + +#define MAX_SCREENS 16 + +static void +drm_get_device_id(struct egl_drm_device *device) +{ + char path[512]; + FILE *file; + + /* TODO get the real minor */ + int minor = 0; + + snprintf(path, sizeof(path), "/sys/class/drm/card%d/device/device", minor); + file = fopen(path, "r"); + if (!file) { + _eglLog(_EGL_WARNING, "Could not retrive device ID\n"); + return; + } + + fgets(path, sizeof( path ), file); + sscanf(path, "%x", &device->deviceID); + fclose(file); +} + +static struct egl_drm_device* +egl_drm_create_device(int drmFD) +{ + struct egl_drm_device *device = malloc(sizeof(*device)); + memset(device, 0, sizeof(*device)); + device->drmFD = drmFD; + + device->version = drmGetVersion(device->drmFD); + + drm_get_device_id(device); + + if (!intel_create_device(device)) { + free(device); + return NULL; + } + + return device; +} + +static void +_egl_context_modes_destroy(__GLcontextModes *modes) +{ + _eglLog(_EGL_DEBUG, "%s", __FUNCTION__); + + while (modes) { + __GLcontextModes * const next = modes->next; + free(modes); + modes = next; + } +} +/** + * Create a linked list of 'count' GLcontextModes. + * These are used during the client/server visual negotiation phase, + * then discarded. + */ +static __GLcontextModes * +_egl_context_modes_create(unsigned count, size_t minimum_size) +{ + /* This code copied from libGLX, and modified */ + const size_t size = (minimum_size > sizeof(__GLcontextModes)) + ? minimum_size : sizeof(__GLcontextModes); + __GLcontextModes * head = NULL; + __GLcontextModes ** next; + unsigned i; + + _eglLog(_EGL_DEBUG, "%s %d %d", __FUNCTION__, count, minimum_size); + + next = & head; + for (i = 0 ; i < count ; i++) { + *next = (__GLcontextModes *) calloc(1, size); + if (*next == NULL) { + _egl_context_modes_destroy(head); + head = NULL; + break; + } + + (*next)->doubleBufferMode = 1; + (*next)->visualID = GLX_DONT_CARE; + (*next)->visualType = GLX_DONT_CARE; + (*next)->visualRating = GLX_NONE; + (*next)->transparentPixel = GLX_NONE; + (*next)->transparentRed = GLX_DONT_CARE; + (*next)->transparentGreen = GLX_DONT_CARE; + (*next)->transparentBlue = GLX_DONT_CARE; + (*next)->transparentAlpha = GLX_DONT_CARE; + (*next)->transparentIndex = GLX_DONT_CARE; + (*next)->xRenderable = GLX_DONT_CARE; + (*next)->fbconfigID = GLX_DONT_CARE; + (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; + (*next)->bindToTextureRgb = GLX_DONT_CARE; + (*next)->bindToTextureRgba = GLX_DONT_CARE; + (*next)->bindToMipmapTexture = GLX_DONT_CARE; + (*next)->bindToTextureTargets = 0; + (*next)->yInverted = GLX_DONT_CARE; + + next = & ((*next)->next); + } + + return head; +} + +struct drm_screen; + +struct drm_driver +{ + _EGLDriver base; /* base class/object */ + + drmModeResPtr res; + + struct drm_screen *screens[MAX_SCREENS]; + size_t count_screens; + + struct egl_drm_device *device; +}; + +struct drm_surface +{ + _EGLSurface base; /* base class/object */ + + struct egl_drm_drawable *drawable; +}; + +struct drm_context +{ + _EGLContext base; /* base class/object */ + + struct egl_drm_context *context; +}; + +struct drm_screen +{ + _EGLScreen base; + + /* currently only support one connector */ + drmModeConnectorPtr connector; + + /* Has this screen been shown */ + int shown; + + /* Surface that is currently attached to this screen */ + struct drm_surface *surf; + + /* backing buffer */ + drmBO buffer; + + /* framebuffer */ + drmModeFBPtr fb; + uint32_t fbID; + + /* crtc and mode used */ + drmModeCrtcPtr crtc; + uint32_t crtcID; + + struct drm_mode_modeinfo *mode; + + /* geometry of the screen */ + struct egl_drm_frontbuffer front; +}; + +static void +drm_update_res(struct drm_driver *drm_drv) +{ + drmModeFreeResources(drm_drv->res); + drm_drv->res = drmModeGetResources(drm_drv->device->drmFD); +} + +static void +drm_add_modes_from_connector(_EGLScreen *screen, drmModeConnectorPtr connector) +{ + struct drm_mode_modeinfo *m; + int i; + + for (i = 0; i < connector->count_modes; i++) { + m = &connector->modes[i]; + _eglAddNewMode(screen, m->hdisplay, m->vdisplay, m->vrefresh, m->name); + } +} + + +static EGLBoolean +drm_initialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor) +{ + _EGLDisplay *disp = _eglLookupDisplay(dpy); + struct drm_driver *drm_drv = (struct drm_driver *)drv; + struct drm_screen *screen = NULL; + drmModeConnectorPtr connector = NULL; + drmModeResPtr res = NULL; + unsigned count_connectors = 0; + int num_screens = 0; + + EGLint i; + int fd; + + fd = drmOpen("i915", NULL); + if (fd < 0) { + return EGL_FALSE; + } + + drm_drv->device = egl_drm_create_device(fd); + if (!drm_drv->device) { + drmClose(fd); + return EGL_FALSE; + } + + drm_update_res(drm_drv); + res = drm_drv->res; + if (res) + count_connectors = res->count_connectors; + + for(i = 0; i < count_connectors && i < MAX_SCREENS; i++) { + connector = drmModeGetConnector(fd, res->connectors[i]); + + if (!connector) + continue; + + if (connector->connection != DRM_MODE_CONNECTED) { + drmModeFreeConnector(connector); + continue; + } + + screen = malloc(sizeof(struct drm_screen)); + memset(screen, 0, sizeof(*screen)); + screen->connector = connector; + _eglInitScreen(&screen->base); + _eglAddScreen(disp, &screen->base); + drm_add_modes_from_connector(&screen->base, connector); + drm_drv->screens[num_screens++] = screen; + } + drm_drv->count_screens = num_screens; + + /* for now we only have one config */ + _EGLConfig *config = calloc(1, sizeof(*config)); + memset(config, 1, sizeof(*config)); + _eglInitConfig(config, 1); + _eglSetConfigAttrib(config, EGL_RED_SIZE, 8); + _eglSetConfigAttrib(config, EGL_GREEN_SIZE, 8); + _eglSetConfigAttrib(config, EGL_BLUE_SIZE, 8); + _eglSetConfigAttrib(config, EGL_ALPHA_SIZE, 8); + _eglSetConfigAttrib(config, EGL_BUFFER_SIZE, 32); + _eglSetConfigAttrib(config, EGL_DEPTH_SIZE, 24); + _eglSetConfigAttrib(config, EGL_STENCIL_SIZE, 8); + _eglSetConfigAttrib(config, EGL_SURFACE_TYPE, EGL_PBUFFER_BIT); + _eglAddConfig(disp, config); + + drv->Initialized = EGL_TRUE; + + *major = 1; + *minor = 4; + + return EGL_TRUE; +} + +static void +drm_takedown_shown_screen(_EGLDriver *drv, struct drm_screen *screen) +{ + struct drm_driver *drm_drv = (struct drm_driver *)drv; + unsigned int i; + + intel_bind_frontbuffer(screen->surf->drawable, NULL); + screen->surf = NULL; + + for (i = 0; i < drm_drv->res->count_crtcs; i++) { + drmModeSetCrtc( + drm_drv->device->drmFD, + drm_drv->res->crtcs[i], + 0, // FD + 0, 0, + NULL, 0, // List of output ids + NULL); + } + + drmModeRmFB(drm_drv->device->drmFD, screen->fbID); + drmModeFreeFB(screen->fb); + screen->fb = NULL; + + drmBOUnreference(drm_drv->device->drmFD, &screen->buffer); + + screen->shown = 0; +} + +static EGLBoolean +drm_terminate(_EGLDriver *drv, EGLDisplay dpy) +{ + struct drm_driver *drm_drv = (struct drm_driver *)drv; + struct drm_screen *screen; + int i = 0; + + intel_destroy_device(drm_drv->device); + drmFreeVersion(drm_drv->device->version); + + for (i = 0; i < drm_drv->count_screens; i++) { + screen = drm_drv->screens[i]; + + if (screen->shown) + drm_takedown_shown_screen(drv, screen); + + drmModeFreeConnector(screen->connector); + _eglDestroyScreen(&screen->base); + drm_drv->screens[i] = NULL; + } + + drmClose(drm_drv->device->drmFD); + + free(drm_drv->device); + + _eglCleanupDisplay(_eglLookupDisplay(dpy)); + free(drm_drv); + + return EGL_TRUE; +} + + +static struct drm_context * +lookup_drm_context(EGLContext context) +{ + _EGLContext *c = _eglLookupContext(context); + return (struct drm_context *) c; +} + + +static struct drm_surface * +lookup_drm_surface(EGLSurface surface) +{ + _EGLSurface *s = _eglLookupSurface(surface); + return (struct drm_surface *) s; +} + +static struct drm_screen * +lookup_drm_screen(EGLDisplay dpy, EGLScreenMESA screen) +{ + _EGLScreen *s = _eglLookupScreen(dpy, screen); + return (struct drm_screen *) s; +} + +static __GLcontextModes* +visual_from_config(_EGLConfig *conf) +{ + __GLcontextModes *visual; + (void)conf; + + visual = _egl_context_modes_create(1, sizeof(*visual)); + visual->redBits = 8; + visual->greenBits = 8; + visual->blueBits = 8; + visual->alphaBits = 8; + + visual->rgbBits = 32; + visual->doubleBufferMode = 1; + + visual->depthBits = 24; + visual->haveDepthBuffer = visual->depthBits > 0; + visual->stencilBits = 8; + visual->haveStencilBuffer = visual->stencilBits > 0; + + return visual; +} + + + +static EGLContext +drm_create_context(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list) +{ + struct drm_driver *drm_drv = (struct drm_driver *)drv; + struct drm_context *c; + struct drm_egl_context *share = NULL; + _EGLConfig *conf; + int i; + int ret; + __GLcontextModes *visual; + struct egl_drm_context *context; + + conf = _eglLookupConfig(drv, dpy, config); + if (!conf) { + _eglError(EGL_BAD_CONFIG, "eglCreateContext"); + return EGL_NO_CONTEXT; + } + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + /* no attribs defined for now */ + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreateContext"); + return EGL_NO_CONTEXT; + } + } + + c = (struct drm_context *) calloc(1, sizeof(struct drm_context)); + if (!c) + return EGL_NO_CONTEXT; + + _eglInitContext(drv, dpy, &c->base, config, attrib_list); + + context = malloc(sizeof(*context)); + memset(context, 0, sizeof(*context)); + + if (!context) + goto err_c; + + context->device = drm_drv->device; + visual = visual_from_config(conf); + + ret = intel_create_context(context, visual, share); + free(visual); + + if (!ret) + goto err_gl; + + c->context = context; + + /* generate handle and insert into hash table */ + _eglSaveContext(&c->base); + assert(_eglGetContextHandle(&c->base)); + + return _eglGetContextHandle(&c->base); +err_gl: + free(context); +err_c: + free(c); + return EGL_NO_CONTEXT; +} + +static EGLBoolean +drm_destroy_context(_EGLDriver *drv, EGLDisplay dpy, EGLContext context) +{ + struct drm_context *fc = lookup_drm_context(context); + _eglRemoveContext(&fc->base); + if (fc->base.IsBound) { + fc->base.DeletePending = EGL_TRUE; + } else { + intel_destroy_context(fc->context); + free(fc->context); + free(fc); + } + return EGL_TRUE; +} + + +static EGLSurface +drm_create_window_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list) +{ + return EGL_NO_SURFACE; +} + + +static EGLSurface +drm_create_pixmap_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list) +{ + return EGL_NO_SURFACE; +} + + +static EGLSurface +drm_create_pbuffer_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) +{ + struct drm_driver *drm_drv = (struct drm_driver *)drv; + int i; + int ret; + int width = -1; + int height = -1; + struct drm_surface *surf = NULL; + struct egl_drm_drawable *drawable = NULL; + __GLcontextModes *visual; + _EGLConfig *conf; + + conf = _eglLookupConfig(drv, dpy, config); + if (!conf) { + _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface"); + return EGL_NO_CONTEXT; + } + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + case EGL_WIDTH: + width = attrib_list[++i]; + break; + case EGL_HEIGHT: + height = attrib_list[++i]; + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface"); + return EGL_NO_SURFACE; + } + } + + if (width < 1 || height < 1) { + _eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface"); + return EGL_NO_SURFACE; + } + + surf = (struct drm_surface *) calloc(1, sizeof(struct drm_surface)); + if (!surf) + goto err; + + if (!_eglInitSurface(drv, dpy, &surf->base, EGL_PBUFFER_BIT, config, attrib_list)) + goto err_surf; + + drawable = malloc(sizeof(*drawable)); + memset(drawable, 0, sizeof(*drawable)); + + drawable->w = width; + drawable->h = height; + + visual = visual_from_config(conf); + + drawable->device = drm_drv->device; + ret = intel_create_drawable(drawable, visual); + free(visual); + + if (!ret) + goto err_draw; + + surf->drawable = drawable; + + _eglSaveSurface(&surf->base); + return surf->base.Handle; + +err_draw: + free(drawable); +err_surf: + free(surf); +err: + return EGL_NO_SURFACE; +} + +static EGLSurface +drm_create_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg, + const EGLint *attrib_list) +{ + EGLSurface surf = drm_create_pbuffer_surface(drv, dpy, cfg, attrib_list); + + return surf; +} + +static struct drm_mode_modeinfo * +drm_find_mode(drmModeConnectorPtr connector, _EGLMode *mode) +{ + int i; + struct drm_mode_modeinfo *m; + + for (i = 0; i < connector->count_modes; i++) { + m = &connector->modes[i]; + if (m->hdisplay == mode->Width && m->vdisplay == mode->Height && m->vrefresh == mode->RefreshRate) + break; + m = &connector->modes[0]; /* if we can't find one, return first */ + } + + return m; +} +static void +draw(size_t x, size_t y, size_t w, size_t h, size_t pitch, size_t v, unsigned int *ptr) +{ + int i, j; + + for (i = x; i < x + w; i++) + for(j = y; j < y + h; j++) + ptr[(i * pitch / 4) + j] = v; + +} + +static void +prettyColors(int fd, unsigned int handle, size_t pitch) +{ + drmBO bo; + unsigned int *ptr; + void *p; + int i; + + drmBOReference(fd, handle, &bo); + drmBOMap(fd, &bo, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, &p); + ptr = (unsigned int*)p; + + for (i = 0; i < (bo.size / 4); i++) + ptr[i] = 0xFFFFFFFF; + + for (i = 0; i < 4; i++) + draw(i * 40, i * 40, 40, 40, pitch, 0, ptr); + + + draw(200, 100, 40, 40, pitch, 0xff00ff, ptr); + draw(100, 200, 40, 40, pitch, 0xff00ff, ptr); + + drmBOUnmap(fd, &bo); +} + +static EGLBoolean +drm_show_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy, + EGLScreenMESA screen, + EGLSurface surface, EGLModeMESA m) +{ + struct drm_driver *drm_drv = (struct drm_driver *)drv; + struct drm_surface *surf = lookup_drm_surface(surface); + struct drm_screen *scrn = lookup_drm_screen(dpy, screen); + _EGLMode *mode = _eglLookupMode(dpy, m); + size_t pitch = mode->Width * 4; + size_t size = mode->Height * pitch; + int ret; + unsigned int i,j,k; + + if (scrn->shown) + drm_takedown_shown_screen(drv, scrn); + + ret = drmBOCreate(drm_drv->device->drmFD, size, 0, 0, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_TT | + DRM_BO_FLAG_MEM_VRAM | + DRM_BO_FLAG_NO_EVICT, + DRM_BO_HINT_DONT_FENCE, &scrn->buffer); + + if (ret) + return EGL_FALSE; + + prettyColors(drm_drv->device->drmFD, scrn->buffer.handle, pitch); + + ret = drmModeAddFB(drm_drv->device->drmFD, mode->Width, mode->Height, + 32, 32, pitch, + scrn->buffer.handle, + &scrn->fbID); + + if (ret) + goto err_bo; + + scrn->fb = drmModeGetFB(drm_drv->device->drmFD, scrn->fbID); + if (!scrn->fb) + goto err_bo; + + for (j = 0; j < drm_drv->res->count_connectors; j++) { + drmModeConnector *con = drmModeGetConnector(drm_drv->device->drmFD, drm_drv->res->connectors[j]); + scrn->mode = drm_find_mode(con, mode); + if (!scrn->mode) + goto err_fb; + + for (k = 0; k < con->count_encoders; k++) { + drmModeEncoder *enc = drmModeGetEncoder(drm_drv->device->drmFD, con->encoders[k]); + for (i = 0; i < drm_drv->res->count_crtcs; i++) { + if (enc->possible_crtcs & (1<<i)) { + ret = drmModeSetCrtc( + drm_drv->device->drmFD, + drm_drv->res->crtcs[i], + scrn->fbID, + 0, 0, + &drm_drv->res->connectors[j], 1, + scrn->mode); + /* skip the other crtcs now */ + i = drm_drv->res->count_crtcs; + } + } + } + } + + scrn->front.handle = scrn->buffer.handle; + scrn->front.pitch = pitch; + scrn->front.width = mode->Width; + scrn->front.height = mode->Height; + + scrn->surf = surf; + intel_bind_frontbuffer(surf->drawable, &scrn->front); + + scrn->shown = 1; + + return EGL_TRUE; + +err_fb: + /* TODO remove fb */ + +err_bo: + drmBOUnreference(drm_drv->device->drmFD, &scrn->buffer); + return EGL_FALSE; +} + +static EGLBoolean +drm_destroy_surface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface) +{ + struct drm_surface *fs = lookup_drm_surface(surface); + _eglRemoveSurface(&fs->base); + if (fs->base.IsBound) { + fs->base.DeletePending = EGL_TRUE; + } else { + intel_bind_frontbuffer(fs->drawable, NULL); + intel_destroy_drawable(fs->drawable); + free(fs->drawable); + free(fs); + } + return EGL_TRUE; +} + + +static EGLBoolean +drm_make_current(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext context) +{ + struct drm_surface *readSurf = lookup_drm_surface(read); + struct drm_surface *drawSurf = lookup_drm_surface(draw); + struct drm_context *ctx = lookup_drm_context(context); + EGLBoolean b; + + b = _eglMakeCurrent(drv, dpy, draw, read, context); + if (!b) + return EGL_FALSE; + + if (ctx) { + if (!drawSurf || !readSurf) + return EGL_FALSE; + + intel_make_current(ctx->context, drawSurf->drawable, readSurf->drawable); + } else { + intel_make_current(NULL, NULL, NULL); + } + + return EGL_TRUE; +} + +static EGLBoolean +drm_swap_buffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) +{ + struct drm_surface *surf = lookup_drm_surface(draw); + if (!surf) + return EGL_FALSE; + + /* error checking */ + if (!_eglSwapBuffers(drv, dpy, draw)) + return EGL_FALSE; + + intel_swap_buffers(surf->drawable); + return EGL_TRUE; +} + + +/** + * The bootstrap function. Return a new drm_driver object and + * plug in API functions. + */ +_EGLDriver * +_eglMain(_EGLDisplay *dpy, const char *args) +{ + struct drm_driver *drm; + + drm = (struct drm_driver *) calloc(1, sizeof(struct drm_driver)); + if (!drm) { + return NULL; + } + + /* First fill in the dispatch table with defaults */ + _eglInitDriverFallbacks(&drm->base); + /* then plug in our Drm-specific functions */ + drm->base.API.Initialize = drm_initialize; + drm->base.API.Terminate = drm_terminate; + drm->base.API.CreateContext = drm_create_context; + drm->base.API.MakeCurrent = drm_make_current; + drm->base.API.CreateWindowSurface = drm_create_window_surface; + drm->base.API.CreatePixmapSurface = drm_create_pixmap_surface; + drm->base.API.CreatePbufferSurface = drm_create_pbuffer_surface; + drm->base.API.DestroySurface = drm_destroy_surface; + drm->base.API.DestroyContext = drm_destroy_context; + drm->base.API.CreateScreenSurfaceMESA = drm_create_screen_surface_mesa; + drm->base.API.ShowScreenSurfaceMESA = drm_show_screen_surface_mesa; + drm->base.API.SwapBuffers = drm_swap_buffers; + + drm->base.ClientAPIsMask = EGL_OPENGL_BIT /*| EGL_OPENGL_ES_BIT*/; + drm->base.Name = "DRM/Gallium"; + + /* enable supported extensions */ + drm->base.Extensions.MESA_screen_surface = EGL_TRUE; + drm->base.Extensions.MESA_copy_context = EGL_TRUE; + + return &drm->base; +} |