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/*
* Direct Rendering Support for SMedia Glamo 336x/337x
*
* (c) 2009 Thomas White <taw@bitwiz.org.uk>
* Roughly based on radeon_fbo.c (c) 2008 Red Hat Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "main/imports.h"
#include "main/macros.h"
#include "main/mtypes.h"
#include "main/fbobject.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
#include "main/context.h"
#include "dri_util.h"
/* This comes from libdrm_glamo */
#include <glamo_bo.h>
#include "glamo_fbo.h"
static void glamo_delete_renderbuffer(struct gl_renderbuffer *rb)
{
struct glamo_renderbuffer *grb = glamo_renderbuffer(rb);
ASSERT(grb);
if ( grb && grb->bo ) {
glamo_bo_unref(grb->bo);
}
_mesa_free(grb);
}
static void *glamo_get_pointer(GLcontext *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
return NULL; /* Can't be directly addressed */
}
/* Called for each hardware renderbuffer when a _window_ is resized.
* Just update fields.
* Not used for user-created renderbuffers!
*/
static GLboolean glamo_alloc_window_storage(GLcontext *ctx,
struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height)
{
ASSERT(rb->Name == 0);
rb->Width = width;
rb->Height = height;
rb->_ActualFormat = internalFormat;
return GL_TRUE;
}
/* Create a buffer, such as a colour or depth buffer */
struct glamo_renderbuffer *glamo_create_renderbuffer(GLenum format,
__DRIdrawable *driDrawPriv)
{
struct glamo_renderbuffer *grb;
grb = CALLOC_STRUCT(glamo_renderbuffer);
if ( !grb ) return NULL;
_mesa_init_renderbuffer(&grb->base, 0);
grb->base.ClassID = GLAMO_RB_CLASS;
switch (format) {
case GL_RGB5:
grb->base._ActualFormat = GL_RGB5;
grb->base._BaseFormat = GL_RGBA;
grb->base.RedBits = 5;
grb->base.GreenBits = 6;
grb->base.BlueBits = 5;
grb->base.DataType = GL_UNSIGNED_BYTE;
break;
case GL_DEPTH_COMPONENT16:
grb->base._ActualFormat = GL_DEPTH_COMPONENT16;
grb->base._BaseFormat = GL_DEPTH_COMPONENT;
grb->base.DepthBits = 16;
grb->base.DataType = GL_UNSIGNED_SHORT;
break;
default:
fprintf(stderr, "%s: Unknown format 0x%04x\n", __FUNCTION__, format);
_mesa_delete_renderbuffer(&grb->base);
return NULL;
}
grb->dPriv = driDrawPriv;
grb->base.InternalFormat = format;
grb->base.Delete = glamo_delete_renderbuffer;
grb->base.AllocStorage = glamo_alloc_window_storage;
grb->base.GetPointer = glamo_get_pointer;
return grb;
}
void glamo_renderbuffer_set_bo(struct glamo_renderbuffer *grb,
struct glamo_bo *bo)
{
struct glamo_bo *old;
old = grb->bo;
grb->bo = bo;
glamo_bo_ref(bo);
if ( old ) glamo_bo_unref(old);
}
/* kate: space-indent on; indent-width 3; mixedindent off; indent-mode cstyle; */
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