From patchwork Tue Jun 27 13:02:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1800604 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=iqB0phsc; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Qr4kq14Wmz242G for ; Tue, 27 Jun 2023 23:07:47 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qE8M4-00008R-Cm; Tue, 27 Jun 2023 09:03:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qE8M2-00007v-DU for qemu-devel@nongnu.org; Tue, 27 Jun 2023 09:03:34 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qE8M0-0007Dw-Ok for qemu-devel@nongnu.org; Tue, 27 Jun 2023 09:03:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1687871012; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IHt38YQZYxt68XciFouTVG5rSKUg7b7WexB2CSISB/s=; b=iqB0phscdB/pJV2nolflF9prJ0f/nSVUiU3sLbmKLMDx0PdKhly889Ubk/wW+xGzzQNxgT XaiMRLwe7BfUwMOdBdOwHrc6q7klIBAaSpaiuwsQxV8Q9y1N9bDhj689sIgmLTQvnHU8Uu aLSFEK/9DHT+lQemMAcgzvNCUIBMYhw= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-646-JCM6aeE5Oru_ADeoS6KO5w-1; Tue, 27 Jun 2023 09:03:30 -0400 X-MC-Unique: JCM6aeE5Oru_ADeoS6KO5w-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 20EBC18F0253; Tue, 27 Jun 2023 13:03:26 +0000 (UTC) Received: from localhost (unknown [10.39.208.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id BFA2C14682FA; Tue, 27 Jun 2023 13:03:25 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Gerd Hoffmann Subject: [PULL 26/33] ui: add egl_fb_read_rect() Date: Tue, 27 Jun 2023 15:02:23 +0200 Message-ID: <20230627130231.1614896-27-marcandre.lureau@redhat.com> In-Reply-To: <20230627130231.1614896-1-marcandre.lureau@redhat.com> References: <20230627130231.1614896-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.133.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau Similar to egl_fb_read(), same limitations, but with extra arguments to read a subset of the framebuffer. Used in following commits. Signed-off-by: Marc-André Lureau Message-Id: <20230606115658.677673-15-marcandre.lureau@redhat.com> --- include/ui/egl-helpers.h | 1 + ui/egl-helpers.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+) diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h index 6c4eb5dd70..6e2f0c49a6 100644 --- a/include/ui/egl-helpers.h +++ b/include/ui/egl-helpers.h @@ -31,6 +31,7 @@ void egl_fb_setup_for_tex(egl_fb *fb, int width, int height, void egl_fb_setup_new_tex(egl_fb *fb, int width, int height); void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip); void egl_fb_read(DisplaySurface *dst, egl_fb *src); +void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int w, int h); void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip); void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip, diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c index c2a3ace743..f38800e920 100644 --- a/ui/egl-helpers.c +++ b/ui/egl-helpers.c @@ -169,6 +169,20 @@ void egl_fb_read(DisplaySurface *dst, egl_fb *src) GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst)); } +void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int w, int h) +{ + assert(surface_width(dst) == src->width); + assert(surface_height(dst) == src->height); + assert(surface_format(dst) == PIXMAN_x8r8g8b8); + + glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer); + glReadBuffer(GL_COLOR_ATTACHMENT0_EXT); + glPixelStorei(GL_PACK_ROW_LENGTH, surface_stride(dst) / 4); + glReadPixels(x, y, w, h, + GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst) + x * 4); + glPixelStorei(GL_PACK_ROW_LENGTH, 0); +} + void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip) { glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);