Mesa (master): mesa: call ctx->Driver.TexParameter() in texture_buffer_range()

[Brian Paul]

Module: Mesa
Branch: master
Commit: 0f3aee888efa820cb9875cfebc83cf8cc855f599
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0f3aee888efa820cb9875cfebc83cf8cc855f599

Author: Brian Paul <brianp at vmware.com>
Date:   Mon Oct  3 09:40:56 2016 -0600

mesa: call ctx->Driver.TexParameter() in texture_buffer_range()

To inform drivers of texture buffer offset/size changes, as we do for
other texture object parameters.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/mesa/main/teximage.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index df8f0bc..411ec49 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -5046,6 +5046,8 @@ texture_buffer_range(struct gl_context *ctx,
                      GLintptr offset, GLsizeiptr size,
                      const char *caller)
 {
+   GLintptr oldOffset = texObj->BufferOffset;
+   GLsizeiptr oldSize = texObj->BufferSize;
    mesa_format format;
 
    /* NOTE: ARB_texture_buffer_object has interactions with
@@ -5078,6 +5080,17 @@ texture_buffer_range(struct gl_context *ctx,
    }
    _mesa_unlock_texture(ctx, texObj);
 
+   if (ctx->Driver.TexParameter) {
+      if (offset != oldOffset) {
+         ctx->Driver.TexParameter(ctx, texObj, GL_TEXTURE_BUFFER_OFFSET,
+                                  (const GLfloat *) &offset);
+      }
+      if (size != oldSize) {
+         ctx->Driver.TexParameter(ctx, texObj, GL_TEXTURE_BUFFER_SIZE,
+                                  (const GLfloat *) &size);
+      }
+   }
+
    ctx->NewDriverState |= ctx->DriverFlags.NewTextureBuffer;
 
    if (bufObj) {