From 4909519a66551745969a6fdcb82beefe690549d3 Mon Sep 17 00:00:00 2001 From: Grigori Goronzy Date: Thu, 29 Jun 2017 02:44:03 +0200 Subject: [PATCH] egl: Add EGL_KHR_create_context_no_error support MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This only adds the EGL side, needs to be plumbed into Mesa frontend. v2: Add check for extension availability. Reviewed-by: Marek Olšák --- src/egl/drivers/dri2/egl_dri2.c | 20 ++++++++++++++++++-- src/egl/drivers/dri2/egl_dri2.h | 1 + src/egl/main/eglapi.c | 1 + src/egl/main/eglcontext.c | 31 +++++++++++++++++++++++++++++++ src/egl/main/eglcontext.h | 1 + src/egl/main/egldisplay.h | 1 + 6 files changed, 53 insertions(+), 2 deletions(-) diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c index 5bf36bf..f632ebe 100644 --- a/src/egl/drivers/dri2/egl_dri2.c +++ b/src/egl/drivers/dri2/egl_dri2.c @@ -428,6 +428,7 @@ static const struct dri2_extension_match swrast_core_extensions[] = { static const struct dri2_extension_match optional_core_extensions[] = { { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) }, + { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) }, { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) }, { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) }, { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) }, @@ -665,6 +666,9 @@ dri2_setup_screen(_EGLDisplay *disp) disp->Extensions.EXT_create_context_robustness = EGL_TRUE; } + if (dri2_dpy->no_error) + disp->Extensions.KHR_create_context_no_error = EGL_TRUE; + if (dri2_dpy->fence) { disp->Extensions.KHR_fence_sync = EGL_TRUE; disp->Extensions.KHR_wait_sync = EGL_TRUE; @@ -1057,7 +1061,7 @@ dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx, ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION; ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion; - if (dri2_ctx->base.Flags != 0) { + if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) { /* If the implementation doesn't support the __DRI2_ROBUSTNESS * extension, don't even try to send it the robust-access flag. * It may explode. Instead, generate the required EGL error here. @@ -1069,7 +1073,8 @@ dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx, } ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS; - ctx_attribs[pos++] = dri2_ctx->base.Flags; + ctx_attribs[pos++] = dri2_ctx->base.Flags | + dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0; } if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) { @@ -1132,6 +1137,17 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, goto cleanup; } + /* The EGL_KHR_create_context_no_error spec says: + * + * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR + * used to create does not match the value of + * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created." + */ + if (share_list && share_list->NoError != dri2_ctx->base.NoError) { + _eglError(EGL_BAD_MATCH, "eglCreateContext"); + goto cleanup; + } + switch (dri2_ctx->base.ClientAPI) { case EGL_OPENGL_ES_API: switch (dri2_ctx->base.ClientMajorVersion) { diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h index 4a5cf8e..5b3e93a 100644 --- a/src/egl/drivers/dri2/egl_dri2.h +++ b/src/egl/drivers/dri2/egl_dri2.h @@ -170,6 +170,7 @@ struct dri2_egl_display const __DRItexBufferExtension *tex_buffer; const __DRIimageExtension *image; const __DRIrobustnessExtension *robustness; + const __DRInoErrorExtension *no_error; const __DRI2configQueryExtension *config; const __DRI2fenceExtension *fence; const __DRI2rendererQueryExtension *rendererQuery; diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c index 9b899d8..000368a 100644 --- a/src/egl/main/eglapi.c +++ b/src/egl/main/eglapi.c @@ -494,6 +494,7 @@ _eglCreateExtensionsString(_EGLDisplay *dpy) _EGL_CHECK_EXTENSION(KHR_cl_event2); _EGL_CHECK_EXTENSION(KHR_config_attribs); _EGL_CHECK_EXTENSION(KHR_create_context); + _EGL_CHECK_EXTENSION(KHR_create_context_no_error); _EGL_CHECK_EXTENSION(KHR_fence_sync); _EGL_CHECK_EXTENSION(KHR_get_all_proc_addresses); _EGL_CHECK_EXTENSION(KHR_gl_colorspace); diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c index df8b45c..1a8e9bd 100644 --- a/src/egl/main/eglcontext.c +++ b/src/egl/main/eglcontext.c @@ -312,6 +312,37 @@ _eglParseContextAttribList(_EGLContext *ctx, _EGLDisplay *dpy, ctx->Flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR; break; + case EGL_CONTEXT_OPENGL_NO_ERROR_KHR: + if (dpy->Version < 14 || + !dpy->Extensions.KHR_create_context_no_error) { + err = EGL_BAD_ATTRIBUTE; + break; + } + + /* The KHR_no_error spec only applies against OpenGL 2.0+ and + * OpenGL ES 2.0+ + */ + if ((api != EGL_OPENGL_API && api != EGL_OPENGL_ES_API) || + ctx->ClientMajorVersion < 2) { + err = EGL_BAD_ATTRIBUTE; + break; + } + + /* The EGL_KHR_create_context_no_error spec says: + * + * "BAD_MATCH is generated if the EGL_CONTEXT_OPENGL_NO_ERROR_KHR is TRUE at + * the same time as a debug or robustness context is specified." + */ + if (ctx->Flags & EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR || + ctx->Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) { + err = EGL_BAD_MATCH; + break; + } + + /* Canonicalize value to EGL_TRUE/EGL_FALSE definitions */ + ctx->NoError = !!val; + break; + default: err = EGL_BAD_ATTRIBUTE; break; diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h index f2fe806..0667622 100644 --- a/src/egl/main/eglcontext.h +++ b/src/egl/main/eglcontext.h @@ -62,6 +62,7 @@ struct _egl_context EGLint Flags; EGLint Profile; EGLint ResetNotificationStrategy; + EGLBoolean NoError; /* The real render buffer when a window surface is bound */ EGLint WindowRenderBuffer; diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h index a13ff5b..3d5a445 100644 --- a/src/egl/main/egldisplay.h +++ b/src/egl/main/egldisplay.h @@ -122,6 +122,7 @@ struct _egl_extensions EGLBoolean KHR_reusable_sync; EGLBoolean KHR_surfaceless_context; EGLBoolean KHR_wait_sync; + EGLBoolean KHR_create_context_no_error; EGLBoolean MESA_drm_image; EGLBoolean MESA_image_dma_buf_export; -- 2.7.4