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mesa: Implement _mesa_BindBufferRange for target GL_SHADER_STORAGE_BUFFER

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Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Iago Toral Quiroga
2015-03-19 11:42:33 +01:00
committed by Samuel Iglesias Gonsalvez
parent 8a1d58bd61
commit 173ed05a6d
1 changed files with 37 additions and 0 deletions
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src/mesa/main/bufferobj.c
+37
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@@ -3157,6 +3157,40 @@ bind_buffer_range_uniform_buffer(struct gl_context *ctx,
bind_uniform_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
}
/**
* Bind a region of a buffer object to a shader storage block binding point.
* \param index the shader storage buffer binding point index
* \param bufObj the buffer object
* \param offset offset to the start of buffer object region
* \param size size of the buffer object region
*/
static void
bind_buffer_range_shader_storage_buffer(struct gl_context *ctx,
GLuint index,
struct gl_buffer_object *bufObj,
GLintptr offset,
GLsizeiptr size)
{
if (index >= ctx->Const.MaxShaderStorageBufferBindings) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d)", index);
return;
}
if (offset & (ctx->Const.ShaderStorageBufferOffsetAlignment - 1)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glBindBufferRange(offset misaligned %d/%d)", (int) offset,
ctx->Const.ShaderStorageBufferOffsetAlignment);
return;
}
if (bufObj == ctx->Shared->NullBufferObj) {
offset = -1;
size = -1;
}
_mesa_reference_buffer_object(ctx, &ctx->ShaderStorageBuffer, bufObj);
bind_shader_storage_buffer(ctx, index, bufObj, offset, size, GL_FALSE);
}
/**
* Bind a buffer object to a uniform block binding point.
@@ -4227,6 +4261,9 @@ _mesa_BindBufferRange(GLenum target, GLuint index,
case GL_UNIFORM_BUFFER:
bind_buffer_range_uniform_buffer(ctx, index, bufObj, offset, size);
return;
case GL_SHADER_STORAGE_BUFFER:
bind_buffer_range_shader_storage_buffer(ctx, index, bufObj, offset, size);
return;
case GL_ATOMIC_COUNTER_BUFFER:
bind_atomic_buffer(ctx, index, bufObj, offset, size,
"glBindBufferRange");