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/*
* Copyright 2012-2013, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Artur Wyszynski, harakash@gmail.com
* Alexander von Gluck IV, kallisti5@unixzen.com
*/
#include "GalliumFramebuffer.h"
extern "C" {
#include "main/context.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
#include "pipe/p_format.h"
#include "state_tracker/st_manager.h"
}
#include "GalliumContext.h"
#ifdef DEBUG
# define TRACE(x...) printf("GalliumFramebuffer: " x)
# define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
#else
# define TRACE(x...)
# define CALLED()
#endif
#define ERROR(x...) printf("GalliumFramebuffer: " x)
static boolean
hgl_framebuffer_flush_front(struct st_context_iface *stctx,
struct st_framebuffer_iface* stfb, enum st_attachment_type statt)
{
CALLED();
hgl_context* context = (hgl_context*)stfb->st_manager_private;
if (!context) {
ERROR("%s: Couldn't obtain valid hgl_context!\n", __func__);
return FALSE;
}
#if 0
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
pipe_mutex_lock(stwfb->fb->mutex);
struct pipe_resource* resource = textures[statt];
if (resource)
stw_framebuffer_present_locked(...);
#endif
return TRUE;
}
static boolean
hgl_framebuffer_validate(struct st_context_iface* stctx,
struct st_framebuffer_iface* stfb,
const enum st_attachment_type* statts, unsigned count,
struct pipe_resource** out)
{
CALLED();
if (!stfb) {
ERROR("%s: Invalid st framebuffer interface!\n", __func__);
return FALSE;
}
hgl_context* context = (hgl_context*)stfb->st_manager_private;
if (!context) {
ERROR("%s: Couldn't obtain valid hgl_context!\n", __func__);
return FALSE;
}
int32 width = 0;
int32 height = 0;
get_bitmap_size(context->bitmap, &width, &height);
struct pipe_resource templat;
memset(&templat, 0, sizeof(templat));
templat.target = PIPE_TEXTURE_RECT;
templat.width0 = width;
templat.height0 = height;
templat.depth0 = 1;
templat.array_size = 1;
templat.usage = PIPE_USAGE_DEFAULT;
if (context->stVisual && context->manager && context->manager->screen) {
TRACE("%s: Updating resources\n", __func__);
int i;
for (i = 0; i < count; i++) {
enum pipe_format format = PIPE_FORMAT_NONE;
unsigned bind = 0;
switch(statts[i]) {
case ST_ATTACHMENT_FRONT_LEFT:
format = context->stVisual->color_format;
bind = PIPE_BIND_RENDER_TARGET;
break;
case ST_ATTACHMENT_DEPTH_STENCIL:
format = context->stVisual->depth_stencil_format;
bind = PIPE_BIND_DEPTH_STENCIL;
break;
case ST_ATTACHMENT_ACCUM:
format = context->stVisual->accum_format;
bind = PIPE_BIND_RENDER_TARGET;
break;
default:
ERROR("%s: Unexpected attachment type!\n", __func__);
}
templat.format = format;
templat.bind = bind;
struct pipe_screen* screen = context->manager->screen;
context->textures[i] = screen->resource_create(screen, &templat);
out[i] = context->textures[i];
}
}
return TRUE;
}
GalliumFramebuffer::GalliumFramebuffer(struct st_visual* visual,
void* privateContext)
:
fBuffer(NULL)
{
CALLED();
fBuffer = CALLOC_STRUCT(st_framebuffer_iface);
if (!fBuffer) {
ERROR("%s: Couldn't calloc framebuffer!\n", __func__);
return;
}
fBuffer->visual = visual;
fBuffer->flush_front = hgl_framebuffer_flush_front;
fBuffer->validate = hgl_framebuffer_validate;
fBuffer->st_manager_private = privateContext;
pipe_mutex_init(fMutex);
}
GalliumFramebuffer::~GalliumFramebuffer()
{
CALLED();
// We lock and unlock to try and make sure we wait for anything
// using the framebuffer to finish
Lock();
if (!fBuffer) {
ERROR("%s: Strange, no Gallium Framebuffer to free?\n", __func__);
return;
}
FREE(fBuffer);
Unlock();
pipe_mutex_destroy(fMutex);
}
status_t
GalliumFramebuffer::Lock()
{
CALLED();
pipe_mutex_lock(fMutex);
return B_OK;
}
status_t
GalliumFramebuffer::Unlock()
{
CALLED();
pipe_mutex_unlock(fMutex);
return B_OK;
}
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