From 63c5d5c6c46c8472ee7a8241a0f80f13d79cb8cd Mon Sep 17 00:00:00 2001 From: Gurchetan Singh Date: Mon, 16 May 2016 16:34:07 -0700 Subject: Added pbuffer hooks for surfaceless platform This change enables the creation of pbuffer surfaces on the surfaceless platform. v3: Going back to single-buffered pbuffer plus additional code review changes Reviewed-by: Chad Versace --- src/egl/drivers/dri2/platform_surfaceless.c | 213 +++++++++++++++++++++++++++- 1 file changed, 209 insertions(+), 4 deletions(-) (limited to 'src/egl/drivers/dri2/platform_surfaceless.c') diff --git a/src/egl/drivers/dri2/platform_surfaceless.c b/src/egl/drivers/dri2/platform_surfaceless.c index e0ddc12..8ce6162 100644 --- a/src/egl/drivers/dri2/platform_surfaceless.c +++ b/src/egl/drivers/dri2/platform_surfaceless.c @@ -37,8 +37,203 @@ #include "egl_dri2_fallbacks.h" #include "loader.h" +static __DRIimage* +surfaceless_alloc_image(struct dri2_egl_display *dri2_dpy, + struct dri2_egl_surface *dri2_surf) +{ + return dri2_dpy->image->createImage( + dri2_dpy->dri_screen, + dri2_surf->base.Width, + dri2_surf->base.Height, + dri2_surf->visual, + 0, + NULL); +} + +static void +surfaceless_free_images(struct dri2_egl_surface *dri2_surf) +{ + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + + if (dri2_surf->front) { + dri2_dpy->image->destroyImage(dri2_surf->front); + dri2_surf->front = NULL; + } +} + +static int +surfaceless_image_get_buffers(__DRIdrawable *driDrawable, + unsigned int format, + uint32_t *stamp, + void *loaderPrivate, + uint32_t buffer_mask, + struct __DRIimageList *buffers) +{ + struct dri2_egl_surface *dri2_surf = loaderPrivate; + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + + buffers->image_mask = 0; + buffers->front = NULL; + buffers->back = NULL; + + /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically, + * the spec states that they have a back buffer but no front buffer, in + * contrast to pixmaps, which have a front buffer but no back buffer. + * + * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate + * from the spec, following the precedent of Mesa's EGL X11 platform. The + * X11 platform correctly assigns pbuffers to single-buffered configs, but + * assigns the pbuffer a front buffer instead of a back buffer. + * + * Pbuffers in the X11 platform mostly work today, so let's just copy its + * behavior instead of trying to fix (and hence potentially breaking) the + * world. + */ + + if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) { + + if (!dri2_surf->front) + dri2_surf->front = + surfaceless_alloc_image(dri2_dpy, dri2_surf); + + buffers->image_mask |= __DRI_IMAGE_BUFFER_FRONT; + buffers->front = dri2_surf->front; + } + + return 1; +} + +static _EGLSurface * +dri2_surfaceless_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type, + _EGLConfig *conf, const EGLint *attrib_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_config *dri2_conf = dri2_egl_config(conf); + struct dri2_egl_surface *dri2_surf; + const __DRIconfig *config; + + /* Make sure to calloc so all pointers + * are originally NULL. + */ + dri2_surf = calloc(1, sizeof *dri2_surf); + + if (!dri2_surf) { + _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface"); + return NULL; + } + + if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list)) + goto cleanup_surface; + + config = dri2_get_dri_config(dri2_conf, type, + dri2_surf->base.GLColorspace); + + if (!config) + goto cleanup_surface; + + dri2_surf->dri_drawable = + (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config, + dri2_surf); + if (dri2_surf->dri_drawable == NULL) { + _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable"); + goto cleanup_surface; + } + + if (conf->RedSize == 5) + dri2_surf->visual = __DRI_IMAGE_FORMAT_RGB565; + else if (conf->AlphaSize == 0) + dri2_surf->visual = __DRI_IMAGE_FORMAT_XRGB8888; + else + dri2_surf->visual = __DRI_IMAGE_FORMAT_ARGB8888; + + return &dri2_surf->base; + + cleanup_surface: + free(dri2_surf); + return NULL; +} + +static EGLBoolean +surfaceless_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + + if (!_eglPutSurface(surf)) + return EGL_TRUE; + + surfaceless_free_images(dri2_surf); + + (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable); + + free(dri2_surf); + return EGL_TRUE; +} + +static _EGLSurface * +dri2_surfaceless_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, const EGLint *attrib_list) +{ + return dri2_surfaceless_create_surface(drv, disp, EGL_PBUFFER_BIT, conf, + attrib_list); +} + +static EGLBoolean +surfaceless_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy) +{ + + struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy); + + unsigned int visuals[3][4] = { + { 0xff0000, 0xff00, 0xff, 0xff000000 }, // ARGB8888 + { 0xff0000, 0xff00, 0xff, 0x0 }, // RGB888 + { 0xf800, 0x7e0, 0x1f, 0x0 }, // RGB565 + }; + + int count, i, j; + unsigned int r, b, g, a; + + count = 0; + for (i = 0; i < ARRAY_SIZE(visuals); i++) { + for (j = 0; dri2_dpy->driver_configs[j]; j++) { + const EGLint surface_type = EGL_PBUFFER_BIT; + struct dri2_egl_config *dri2_conf; + + /* Determine driver supported masks */ + dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j], + __DRI_ATTRIB_RED_MASK, &r); + dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j], + __DRI_ATTRIB_BLUE_MASK, &b); + dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j], + __DRI_ATTRIB_GREEN_MASK, &g); + dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[j], + __DRI_ATTRIB_ALPHA_MASK, &a); + + /* Compare with advertised visuals */ + if (r ^ visuals[i][0] || g ^ visuals[i][1] + || b ^ visuals[i][2] || a ^ visuals[i][3]) + continue; + + dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[j], + count + 1, surface_type, NULL, visuals[i]); + + if (dri2_conf) + count++; + } + } + + if (!count) + _eglLog(_EGL_DEBUG, "Can't create surfaceless visuals"); + + return (count != 0); +} + static struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = { .create_pixmap_surface = dri2_fallback_create_pixmap_surface, + .create_pbuffer_surface = dri2_surfaceless_create_pbuffer_surface, + .destroy_surface = surfaceless_destroy_surface, .create_image = dri2_create_image_khr, .swap_interval = dri2_fallback_swap_interval, .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage, @@ -48,6 +243,7 @@ static struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = { .query_buffer_age = dri2_fallback_query_buffer_age, .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image, .get_sync_values = dri2_fallback_get_sync_values, + .get_dri_drawable = dri2_surface_get_dri_drawable, }; static void @@ -72,6 +268,12 @@ surfaceless_get_buffers_with_format(__DRIdrawable * driDrawable, return dri2_surf->buffers; } +static const __DRIimageLoaderExtension image_loader_extension = { + .base = { __DRI_IMAGE_LOADER, 1 }, + .getBuffers = surfaceless_image_get_buffers, + .flushFrontBuffer = surfaceless_flush_front_buffer, +}; + #define DRM_RENDER_DEV_NAME "%s/renderD%d" EGLBoolean @@ -127,7 +329,7 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp) dri2_dpy->dri2_loader_extension.getBuffersWithFormat = surfaceless_get_buffers_with_format; - dri2_dpy->extensions[0] = &dri2_dpy->dri2_loader_extension.base; + dri2_dpy->extensions[0] = &image_loader_extension.base; dri2_dpy->extensions[1] = &image_lookup_extension.base; dri2_dpy->extensions[2] = &use_invalidate.base; dri2_dpy->extensions[3] = NULL; @@ -137,9 +339,9 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp) goto cleanup_driver; } - for (i = 0; dri2_dpy->driver_configs[i]; i++) { - dri2_add_config(disp, dri2_dpy->driver_configs[i], - i + 1, EGL_WINDOW_BIT, NULL, NULL); + if (!surfaceless_add_configs_for_visuals(drv, disp)) { + err = "DRI2: failed to add configs"; + goto cleanup_screen; } disp->Extensions.KHR_image_base = EGL_TRUE; @@ -151,6 +353,9 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp) return EGL_TRUE; +cleanup_screen: + dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); + cleanup_driver: dlclose(dri2_dpy->driver); free(dri2_dpy->driver_name); -- cgit v1.1