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authormarha <marha@users.sourceforge.net>2012-08-31 15:18:29 +0200
committermarha <marha@users.sourceforge.net>2012-09-04 14:23:28 +0200
commitd7fc06ac528d54e0e1416cb8aa89b6fd072400a5 (patch)
tree74cccede044412bba5723a132f1385aa9259f04b /mesalib/src/mesa/main/varray.c
parent9dec848b23cf905ded387820f2893425cc00d545 (diff)
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randrproto xwininfo fontconfig libxcb mesa xkeyboard-config pixman xserver
git update 31 Aug 2012
Diffstat (limited to 'mesalib/src/mesa/main/varray.c')
-rw-r--r--mesalib/src/mesa/main/varray.c49
1 files changed, 42 insertions, 7 deletions
diff --git a/mesalib/src/mesa/main/varray.c b/mesalib/src/mesa/main/varray.c
index 8c3ddc524..91452b75f 100644
--- a/mesalib/src/mesa/main/varray.c
+++ b/mesalib/src/mesa/main/varray.c
@@ -133,6 +133,23 @@ update_array(struct gl_context *ctx,
GLsizei elementSize;
GLenum format = GL_RGBA;
+ /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says:
+ *
+ * "Client vertex arrays - all vertex array attribute pointers must
+ * refer to buffer objects (section 2.9.2). The default vertex array
+ * object (the name zero) is also deprecated. Calling
+ * VertexAttribPointer when no buffer object or no vertex array object
+ * is bound will generate an INVALID_OPERATION error..."
+ *
+ * The check for VBOs is handled below.
+ */
+ if (ctx->API == API_OPENGL_CORE
+ && (ctx->Array.ArrayObj == ctx->Array.DefaultArrayObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(no array object bound)",
+ func);
+ return;
+ }
+
if (_mesa_is_gles(ctx)) {
/* Once Mesa gets support for GL_OES_vertex_half_float this mask will
* change. Adding support for this extension isn't quite as trivial as
@@ -216,11 +233,20 @@ update_array(struct gl_context *ctx,
return;
}
- if (ctx->Array.ArrayObj->ARBsemantics &&
+ /* Page 29 (page 44 of the PDF) of the OpenGL 3.3 spec says:
+ *
+ * "An INVALID_OPERATION error is generated under any of the following
+ * conditions:
+ *
+ * ...
+ *
+ * * any of the *Pointer commands specifying the location and
+ * organization of vertex array data are called while zero is bound
+ * to the ARRAY_BUFFER buffer object binding point (see section
+ * 2.9.6), and the pointer argument is not NULL."
+ */
+ if (ptr != NULL && ctx->Array.ArrayObj->ARBsemantics &&
!_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
- /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
- * Generate GL_INVALID_OPERATION if that's not true.
- */
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
return;
}
@@ -590,12 +616,15 @@ get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname,
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
return array->BufferObj->Name;
case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
- if (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4) {
+ if ((_mesa_is_desktop_gl(ctx)
+ && (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))
+ || _mesa_is_gles3(ctx)) {
return array->Integer;
}
goto error;
case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB:
- if (ctx->Extensions.ARB_instanced_arrays) {
+ if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_instanced_arrays)
+ || _mesa_is_gles3(ctx)) {
return array->InstanceDivisor;
}
goto error;
@@ -613,7 +642,13 @@ static const GLfloat *
get_current_attrib(struct gl_context *ctx, GLuint index, const char *function)
{
if (index == 0) {
- if (ctx->API != API_OPENGLES2) {
+ /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
+ * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
+ * that will erroneously allow this usage in a 3.0 forward-compatible
+ * context too.
+ */
+ if ((ctx->API != API_OPENGL_CORE || ctx->Version < 31)
+ && ctx->API != API_OPENGLES2) {
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function);
return NULL;
}