From d890fc710f6d3472ea3837e074fafc100d41e01f Mon Sep 17 00:00:00 2001
From: Laura Ekstrand <laura@jlekstrand.net>
Date: Wed, 4 Feb 2015 14:21:48 -0800
Subject: [PATCH] main: Add entry points for
 InvalidateNamedFramebuffer[Sub]Data.
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Reviewed-by: Fredrik Höglund <fredrik@kde.org>
Signed-off-by: Fredrik Höglund <fredrik@kde.org>
---
 src/mapi/glapi/gen/ARB_direct_state_access.xml | 16 ++++++
 src/mesa/main/fbobject.c                       | 69 ++++++++++++++++++++++++++
 src/mesa/main/fbobject.h                       | 12 +++++
 src/mesa/main/tests/dispatch_sanity.cpp        |  2 +
 4 files changed, 99 insertions(+)

diff --git a/src/mapi/glapi/gen/ARB_direct_state_access.xml b/src/mapi/glapi/gen/ARB_direct_state_access.xml
index 7ee2000..de77420 100644
--- a/src/mapi/glapi/gen/ARB_direct_state_access.xml
+++ b/src/mapi/glapi/gen/ARB_direct_state_access.xml
@@ -181,6 +181,22 @@
       <param name="layer" type="GLint" />
    </function>
 
+   <function name="InvalidateNamedFramebufferData" offset="assign">
+      <param name="framebuffer" type="GLuint" />
+      <param name="numAttachments" type="GLsizei" />
+      <param name="attachments" type="const GLenum *" />
+   </function>
+
+   <function name="InvalidateNamedFramebufferSubData" offset="assign">
+      <param name="framebuffer" type="GLuint" />
+      <param name="numAttachments" type="GLsizei" />
+      <param name="attachments" type="const GLenum *" />
+      <param name="x" type="GLint" />
+      <param name="y" type="GLint" />
+      <param name="width" type="GLsizei" />
+      <param name="height" type="GLsizei" />
+   </function>
+
    <function name="BlitNamedFramebuffer" offset="assign">
       <param name="readFramebuffer" type="GLuint" />
       <param name="drawFramebuffer" type="GLuint" />
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 4a32f1f..dc1e1a6 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -3788,6 +3788,35 @@ _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
 
 
 void GLAPIENTRY
+_mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer,
+                                        GLsizei numAttachments,
+                                        const GLenum *attachments,
+                                        GLint x, GLint y,
+                                        GLsizei width, GLsizei height)
+{
+   struct gl_framebuffer *fb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
+    * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
+    * default draw framebuffer is affected."
+    */
+   if (framebuffer) {
+      fb = _mesa_lookup_framebuffer_err(ctx, framebuffer,
+                                        "glInvalidateNamedFramebufferSubData");
+      if (!fb)
+         return;
+   }
+   else
+      fb = ctx->WinSysDrawBuffer;
+
+   invalidate_framebuffer_storage(ctx, fb, numAttachments, attachments,
+                                  x, y, width, height,
+                                  "glInvalidateNamedFramebufferSubData");
+}
+
+
+void GLAPIENTRY
 _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
                             const GLenum *attachments)
 {
@@ -3822,6 +3851,46 @@ _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
 
 
 void GLAPIENTRY
+_mesa_InvalidateNamedFramebufferData(GLuint framebuffer,
+                                     GLsizei numAttachments,
+                                     const GLenum *attachments)
+{
+   struct gl_framebuffer *fb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
+    * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
+    * default draw framebuffer is affected."
+    */
+   if (framebuffer) {
+      fb = _mesa_lookup_framebuffer_err(ctx, framebuffer,
+                                        "glInvalidateNamedFramebufferData");
+      if (!fb)
+         return;
+   }
+   else
+      fb = ctx->WinSysDrawBuffer;
+
+   /* The GL_ARB_invalidate_subdata spec says:
+    *
+    *     "The command
+    *
+    *        void InvalidateFramebuffer(enum target,
+    *                                   sizei numAttachments,
+    *                                   const enum *attachments);
+    *
+    *     is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
+    *     <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
+    *     <MAX_VIEWPORT_DIMS[1]> respectively."
+    */
+   invalidate_framebuffer_storage(ctx, fb, numAttachments, attachments,
+                                  0, 0,
+                                  MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
+                                  "glInvalidateNamedFramebufferData");
+}
+
+
+void GLAPIENTRY
 _mesa_DiscardFramebufferEXT(GLenum target, GLsizei numAttachments,
                             const GLenum *attachments)
 {
diff --git a/src/mesa/main/fbobject.h b/src/mesa/main/fbobject.h
index 7139203..22cb139 100644
--- a/src/mesa/main/fbobject.h
+++ b/src/mesa/main/fbobject.h
@@ -261,10 +261,22 @@ _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
                                GLsizei width, GLsizei height);
 
 extern void GLAPIENTRY
+_mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer,
+                                        GLsizei numAttachments,
+                                        const GLenum *attachments,
+                                        GLint x, GLint y,
+                                        GLsizei width, GLsizei height);
+
+extern void GLAPIENTRY
 _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
                             const GLenum *attachments);
 
 extern void GLAPIENTRY
+_mesa_InvalidateNamedFramebufferData(GLuint framebuffer,
+                                     GLsizei numAttachments,
+                                     const GLenum *attachments);
+
+extern void GLAPIENTRY
 _mesa_DiscardFramebufferEXT(GLenum target, GLsizei numAttachments,
                             const GLenum *attachments);
 
diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
index ec3c992..e375260 100644
--- a/src/mesa/main/tests/dispatch_sanity.cpp
+++ b/src/mesa/main/tests/dispatch_sanity.cpp
@@ -984,6 +984,8 @@ const struct function gl_core_functions_possible[] = {
    { "glNamedFramebufferRenderbuffer", 45, -1 },
    { "glNamedFramebufferTexture", 45, -1 },
    { "glNamedFramebufferTextureLayer", 45, -1 },
+   { "glInvalidateNamedFramebufferSubData", 45, -1 },
+   { "glInvalidateNamedFramebufferData", 45, -1 },
    { "glBlitNamedFramebuffer", 45, -1 },
    { "glCheckNamedFramebufferStatus", 45, -1 },
    { "glGetNamedFramebufferAttachmentParameteriv", 45, -1 },
-- 
2.7.4