glsl: add a mechanism to allow layout qualifiers on function params

[mesa.git] / src / mesa / main / formatquery.c

diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c
index 61f798c88fbb976bd8a3107d4dcdc154f42a1679..84b5f512ba524cb28f28867aad09498548e3ccea 100644 (file)
--- a/src/mesa/main/formatquery.c
+++ b/src/mesa/main/formatquery.c
@@ -392,14 +392,12 @@ _is_target_supported(struct gl_context *ctx, GLenum target)
     *     implementation the "unsupported" answer should be given.
     *     This is not an error."
     *
-    * For OpenGL ES, queries can only be used with GL_RENDERBUFFER or MS.
+    * Note that legality of targets has already been verified.
     */
    switch(target){
    case GL_TEXTURE_1D:
    case GL_TEXTURE_2D:
    case GL_TEXTURE_3D:
-      if (!_mesa_is_desktop_gl(ctx))
-         return false;
       break;
 
    case GL_TEXTURE_1D_ARRAY:
@@ -503,8 +501,7 @@ _is_resource_supported(struct gl_context *ctx, GLenum target,
 
       /* additional checks for compressed textures */
       if (_mesa_is_compressed_format(ctx, internalformat) &&
-          (!_mesa_target_can_be_compressed(ctx, target, internalformat, NULL) ||
-           _mesa_format_no_online_compression(ctx, internalformat)))
+          !_mesa_target_can_be_compressed(ctx, target, internalformat, NULL))
          return false;
 
       break;
@@ -560,15 +557,29 @@ _is_internalformat_supported(struct gl_context *ctx, GLenum target,
     *         implementation accepts it for any texture specification commands, and
     *         - unsized or base internal format, if the implementation accepts
     *         it for texture or image specification.
+    *
+    * But also:
+    * "If the particualar <target> and <internalformat> combination do not make
+    * sense, or if a particular type of <target> is not supported by the
+    * implementation the "unsupported" answer should be given. This is not an
+    * error.
     */
    GLint buffer[1];
 
-   /* At this point an internalformat is valid if it is valid as a texture or
-    * as a renderbuffer format. The checks are different because those methods
-    * return different values when passing non supported internalformats */
-   if (_mesa_base_tex_format(ctx, internalformat) < 0 &&
-       _mesa_base_fbo_format(ctx, internalformat) == 0)
-      return false;
+   if (target == GL_RENDERBUFFER) {
+      if (_mesa_base_fbo_format(ctx, internalformat) == 0) {
+         return false;
+      }
+   } else if (target == GL_TEXTURE_BUFFER) {
+      if (_mesa_validate_texbuffer_format(ctx, internalformat) ==
+          MESA_FORMAT_NONE) {
+         return false;
+      }
+   } else {
+      if (_mesa_base_tex_format(ctx, internalformat) < 0) {
+         return false;
+      }
+   }
 
    /* Let the driver have the final word */
    ctx->Driver.QueryInternalFormat(ctx, target, internalformat,
@@ -702,6 +713,12 @@ _mesa_query_internal_format_default(struct gl_context *ctx, GLenum target,
    case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
    case GL_FRAMEBUFFER_BLEND:
    case GL_FILTER:
+      /*
+       * TODO seems a tad optimistic just saying yes to everything here.
+       * Even for combinations which make no sense...
+       * And things like TESS_CONTROL_TEXTURE should definitely default to
+       * NONE if the driver doesn't even support tessellation...
+       */
       params[0] = GL_FULL_SUPPORT;
       break;
    case GL_NUM_TILING_TYPES_EXT:
@@ -942,9 +959,6 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
       mesa_format texformat;
 
       if (target != GL_RENDERBUFFER) {
-         if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, true))
-            goto end;
-
          baseformat = _mesa_base_tex_format(ctx, internalformat);
       } else {
          baseformat = _mesa_base_fbo_format(ctx, internalformat);
@@ -965,10 +979,7 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
        * and glGetRenderbufferParameteriv functions.
        */
       if (pname == GL_INTERNALFORMAT_SHARED_SIZE) {
-         if (_mesa_has_EXT_texture_shared_exponent(ctx) &&
-             target != GL_TEXTURE_BUFFER &&
-             target != GL_RENDERBUFFER &&
-             texformat == MESA_FORMAT_R9G9B9E5_FLOAT) {
+         if (texformat == MESA_FORMAT_R9G9B9E5_FLOAT) {
             buffer[0] = 5;
          }
          goto end;