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bh=q/sY44RWB9rTaWjpKipGVlF7w0jh7ExDt4ITjGoq9Cc=; b=PQ62kUzcQ6FX9+/hzyK31FO7TkBE1UYWXy34fMVx6FFdcWsmiiVp/M8NcWtVQq6pKyMtRe bUGZbgBGTlfZ+ZrUhFXFnVEkafspNy55x0jFXvYK0eOshqXgMah5C33iCru1JquaqR351B gRctYdtjaPivomcJyzpQtctc26TLyFA= X-MC-Unique: Xm8nlF5uP-KnhdCVtKRoig-1 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Gerd Hoffmann , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 14/21] ui: add egl_fb_read_rect() Date: Tue, 6 Jun 2023 15:56:51 +0400 Message-Id: <20230606115658.677673-15-marcandre.lureau@redhat.com> In-Reply-To: <20230606115658.677673-1-marcandre.lureau@redhat.com> References: <20230606115658.677673-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1686052866970100001 From: Marc-Andr=C3=A9 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-Andr=C3=A9 Lureau --- 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 heig= ht, 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); =20 void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool fl= ip); void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool f= lip, diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c index 1c718b0b98..1169e19adb 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)); } =20 +void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int = w, int h) +{ + assert(surface_width(dst) =3D=3D src->width); + assert(surface_height(dst) =3D=3D src->height); + assert(surface_format(dst) =3D=3D 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 fl= ip) { glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer); --=20 2.40.1