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-rw-r--r--ui/egl-helpers.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c
index e7ee337d7e..5fa60ef4e8 100644
--- a/ui/egl-helpers.c
+++ b/ui/egl-helpers.c
@@ -111,6 +111,33 @@ void egl_fb_read(void *dst, egl_fb *src)
GL_BGRA, GL_UNSIGNED_BYTE, dst);
}
+void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip)
+{
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
+ glViewport(0, 0, dst->width, dst->height);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, src->texture);
+ qemu_gl_run_texture_blit(gls, flip);
+}
+
+void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
+ int x, int y)
+{
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
+ if (flip) {
+ glViewport(x, y, src->width, src->height);
+ } else {
+ glViewport(x, dst->height - src->height - y,
+ src->width, src->height);
+ }
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, src->texture);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ qemu_gl_run_texture_blit(gls, flip);
+ glDisable(GL_BLEND);
+}
+
/* ---------------------------------------------------------------------- */
#ifdef CONFIG_OPENGL_DMABUF