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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 "main/context.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
#include "pipe/p_format.h"
#include "util/u_atomic.h"
#include "util/u_memory.h"
#include "hgl_context.h"
#ifdef DEBUG
# define TRACE(x...) printf("hgl:state_tracker: " x)
# define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
#else
# define TRACE(x...)
# define CALLED()
#endif
#define ERROR(x...) printf("hgl:state_tracker: " x)
static boolean
hgl_st_framebuffer_flush_front(struct st_context_iface *stctx,
struct st_framebuffer_iface* stfb, enum st_attachment_type statt)
{
CALLED();
struct hgl_context* context = (struct 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;
}
/**
* Called by the st manager to validate the framebuffer (allocate
* its resources).
*/
static boolean
hgl_st_framebuffer_validate(struct st_context_iface *stctx,
struct st_framebuffer_iface *stfbi, const enum st_attachment_type *statts,
unsigned count, struct pipe_resource **out)
{
CALLED();
if (!stfbi) {
ERROR("%s: Invalid st framebuffer interface!\n", __func__);
return FALSE;
}
struct hgl_context* context = (struct hgl_context*)stfbi->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__);
for (unsigned i = 0; i < count; i++) {
enum pipe_format format = PIPE_FORMAT_NONE;
unsigned bind = 0;
switch(statts[i]) {
case ST_ATTACHMENT_FRONT_LEFT:
case ST_ATTACHMENT_BACK_LEFT:
format = context->stVisual->color_format;
bind = PIPE_BIND_DISPLAY_TARGET
| 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:
format = PIPE_FORMAT_NONE;
break;
}
if (format != PIPE_FORMAT_NONE) {
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;
}
/**
* Create new framebuffer
*/
struct hgl_buffer *
hgl_create_st_framebuffer(struct hgl_context* context)
{
CALLED();
struct hgl_buffer *buffer = CALLOC_STRUCT(hgl_buffer);
assert(context);
assert(context->stVisual);
if (buffer) {
// Copy context visual into framebuffer
memcpy(&buffer->visual, context->stVisual, sizeof(struct st_visual));
// calloc our st_framebuffer interface
buffer->stfbi = CALLOC_STRUCT(st_framebuffer_iface);
if (!buffer->stfbi) {
ERROR("%s: Couldn't calloc framebuffer!\n", __func__);
return NULL;
}
struct st_framebuffer_iface* stfbi = buffer->stfbi;
p_atomic_set(&stfbi->stamp, 1);
stfbi->flush_front = hgl_st_framebuffer_flush_front;
stfbi->validate = hgl_st_framebuffer_validate;
stfbi->st_manager_private = (void*)context;
stfbi->visual = &buffer->visual;
// TODO: Do we need linked list?
}
return buffer;
}
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