From 62411681da4d1b7f9417f34dbf92a3e79e24dc09 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 22 Aug 2013 01:29:11 -0700 Subject: [PATCH] meta: Set correct viewport and projection in decompress_texture_image. _mesa_meta_begin() sets up an orthographic project and initializes the viewport based on the current drawbuffer's width and height. This is likely the window size, since it occurs before the meta operation binds any temporary buffers. decompress_texture_image needs the viewport to be the size of the image it's trying to draw. Otherwise, it may only draw part of the image. v2: Actually set the projection properly too. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68250 Signed-off-by: Kenneth Graunke Cc: Mak Nazecic-Andrlon --- src/mesa/drivers/common/meta.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index 1a42b057490..798efa68073 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -4022,6 +4022,11 @@ decompress_texture_image(struct gl_context *ctx, verts[3].x = 0.0F; verts[3].y = height; + _mesa_MatrixMode(GL_PROJECTION); + _mesa_LoadIdentity(); + _mesa_Ortho(0.0, width, 0.0, height, -1.0, 1.0); + _mesa_set_viewport(ctx, 0, 0, width, height); + /* upload new vertex data */ _mesa_BufferSubData(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); -- 2.30.2