mesa: core support for GL_ARB_texture_buffer_object

No GLSL or driver support yet.

1 files changed, 36 insertions, 0 deletions

diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 9090ca661e3..6ef8c8792e6 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -323,6 +323,7 @@ EXTRA_EXT(ARB_vertex_buffer_object);
 EXTRA_EXT(ARB_geometry_shader4);
 EXTRA_EXT(ARB_copy_buffer);
 EXTRA_EXT(EXT_framebuffer_sRGB);
+EXTRA_EXT(ARB_texture_buffer_object);
 
 static const int
 extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
@@ -1236,6 +1237,18 @@ static const struct value_desc values[] = {
      CONTEXT_INT(Const.MaxProgramTexelOffset),
      extra_EXT_gpu_shader4 },
 
+   /* GL_ARB_texture_buffer_object */
+   { GL_MAX_TEXTURE_BUFFER_SIZE_ARB, CONTEXT_INT(Const.MaxTextureBufferSize),
+     extra_ARB_texture_buffer_object },
+   { GL_TEXTURE_BINDING_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
+     extra_ARB_texture_buffer_object },
+   { GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+     TEXTURE_BUFFER_INDEX, extra_ARB_texture_buffer_object },
+   { GL_TEXTURE_BUFFER_FORMAT_ARB, LOC_CUSTOM, TYPE_INT, 0,
+     extra_ARB_texture_buffer_object },
+   { GL_TEXTURE_BUFFER_ARB, LOC_CUSTOM, TYPE_INT, 0,
+     extra_ARB_texture_buffer_object },
+
    /* GL 3.0 */
    { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
    { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 },
@@ -1673,6 +1686,29 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
    case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
       v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
       break;
+
+   /* GL_ARB_texture_buffer_object */
+   case GL_TEXTURE_BUFFER_ARB:
+      v->value_int = ctx->Texture.BufferObject->Name;
+      break;
+   case GL_TEXTURE_BINDING_BUFFER_ARB:
+      unit = ctx->Texture.CurrentUnit;
+      v->value_int =
+         ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
+      break;
+   case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
+      {
+         struct gl_buffer_object *buf =
+            ctx->Texture.Unit[ctx->Texture.CurrentUnit]
+            .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
+         v->value_int = buf ? buf->Name : 0;
+      }
+      break;
+   case GL_TEXTURE_BUFFER_FORMAT_ARB:
+      v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
+         .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
+      break;
+
    }   
 }