From: Antia Puentes <apuen...@igalia.com>
From the ARB_internalformat_query2 spec:
"If the particular <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."
This function checks if the <target> is supported by the implementation.
---
src/mesa/main/formatquery.c | 71 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c
index a0dc350..961af6d 100644
--- a/src/mesa/main/formatquery.c
+++ b/src/mesa/main/formatquery.c
@@ -28,6 +28,7 @@
#include "enums.h"
#include "fbobject.h"
#include "formatquery.h"
+#include "teximage.h"
/* Handles the cases where either ARB_internalformat_query or
* ARB_internalformat_query2 have to return an error.
@@ -363,6 +364,76 @@ _set_default_response(GLenum pname, GLint buffer[16])
}
}
+static bool
+_is_target_supported(struct gl_context *ctx, GLenum target)
+{
+ /* The ARB_internalformat_query2 spec says:
+ *
+ * "if a particular type of <target> is not supported by the
+ * implementation the "unsupported" answer should be given.
+ * This is not an error."
+ */
+ switch(target){
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ break;
+
+ case GL_TEXTURE_1D:
+ if (!_mesa_is_desktop_gl(ctx))
+ return false;
+ break;
+
+ case GL_TEXTURE_1D_ARRAY:
+ if (!(_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array))
+ return false;
+ break;
+
+ case GL_TEXTURE_2D_ARRAY:
+ if (!((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_array)
+ || _mesa_is_gles3(ctx)))
+ return false;
+ break;
+
+ case GL_TEXTURE_CUBE_MAP:
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return false;
+ break;
+
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ if (!ctx->Extensions.ARB_texture_cube_map_array)
+ return false;
+ break;
+
+ case GL_TEXTURE_RECTANGLE:
+ if (!(_mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_texture_rectangle))
+ return false;
+ break;
+
+ case GL_TEXTURE_BUFFER:
+ if (!(ctx->API == API_OPENGL_CORE &&
+ ctx->Extensions.ARB_texture_buffer_object))
+ return false;
+ break;
+
+ case GL_RENDERBUFFER:
+ if (!ctx->Extensions.ARB_framebuffer_object)
+ return false;
+ break;
+
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ if (!(ctx->Extensions.ARB_texture_multisample &&
_mesa_is_desktop_gl(ctx))
+ && !_mesa_is_gles31(ctx))
+ return false;
+ break;
+
+ default:
+ unreachable("invalid target");
+ }
+
+ return true;
+}
+
/* default implementation of QueryInternalFormat driverfunc, for
* drivers not implementing ARB_internalformat_query2.
*/
--
2.5.3
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