Mesa (master): egl: enhance KHR_gl_image extensions checks

[Emil Velikov]

Module: Mesa
Branch: master
Commit: 962110fa57a5876b523491b701ebe68aa6eb731b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=962110fa57a5876b523491b701ebe68aa6eb731b

Author: Emil Velikov <emil.velikov at collabora.com>
Date:   Thu Jun 29 00:35:56 2017 +0100

egl: enhance KHR_gl_image extensions checks

Drop the (duplicate) top-level check in dri2_create_image_khr() and add
the respective checks in dri2_create_image_khr_{texture,renderbuffer}

v2: use unreachable instead of assert in dri2_create_image_khr_texture

Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>

---

 src/egl/drivers/dri2/egl_dri2.c | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index a641d77452..f8cadfaf8c 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1682,6 +1682,11 @@ dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
       return EGL_NO_IMAGE_KHR;
    }
 
+   if (!disp->Extensions.KHR_gl_renderbuffer_image) {
+      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+      return EGL_NO_IMAGE_KHR;
+   }
+
    dri_image =
       dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
                                                    renderbuffer, NULL);
@@ -1820,30 +1825,38 @@ dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
 
    switch (target) {
    case EGL_GL_TEXTURE_2D_KHR:
+      if (!disp->Extensions.KHR_gl_texture_2D_image) {
+         _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+         return EGL_NO_IMAGE_KHR;
+      }
       depth = 0;
       gl_target = GL_TEXTURE_2D;
       break;
    case EGL_GL_TEXTURE_3D_KHR:
-      if (disp->Extensions.KHR_gl_texture_3D_image) {
-         depth = attrs.GLTextureZOffset;
-         gl_target = GL_TEXTURE_3D;
-         break;
-      }
-      else {
+      if (!disp->Extensions.KHR_gl_texture_3D_image) {
          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
          return EGL_NO_IMAGE_KHR;
       }
+
+      depth = attrs.GLTextureZOffset;
+      gl_target = GL_TEXTURE_3D;
+      break;
    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
+      if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
+         _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+         return EGL_NO_IMAGE_KHR;
+      }
+
       depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
       gl_target = GL_TEXTURE_CUBE_MAP;
       break;
    default:
-      _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
+      unreachable("Unexpected target in dri2_create_image_khr_texture()");
       return EGL_NO_IMAGE_KHR;
    }
 
@@ -2447,15 +2460,8 @@ dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
-      return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
    case EGL_GL_TEXTURE_3D_KHR:
-      if (disp->Extensions.KHR_gl_texture_3D_image) {
-         return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
-      }
-      else {
-         _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
-         return EGL_NO_IMAGE_KHR;
-      }
+      return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
    case EGL_GL_RENDERBUFFER_KHR:
       return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
 #ifdef HAVE_LIBDRM