0,0 → 1,388 |
/* |
* Mesa 3-D graphics library |
* |
* Copyright 2009 VMware, Inc. All Rights Reserved. |
* Copyright (C) 2010 LunarG 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 OR COPYRIGHT HOLDERS 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. |
* |
* Authors: |
* Chia-I Wu <olv@lunarg.com> |
*/ |
|
#include "state_tracker/st_api.h" |
|
#include "pipe/p_context.h" |
#include "pipe/p_screen.h" |
#include "util/u_memory.h" |
#include "util/u_inlines.h" |
#include "util/u_box.h" |
#include "util/u_surface.h" |
|
#include "vg_api.h" |
#include "vg_manager.h" |
#include "vg_context.h" |
#include "api.h" |
#include "handle.h" |
|
static boolean |
vg_context_update_color_rb(struct vg_context *ctx, struct pipe_resource *pt) |
{ |
struct st_renderbuffer *strb = ctx->draw_buffer->strb; |
struct pipe_context *pipe = ctx->pipe; |
struct pipe_surface surf_tmpl; |
|
if (strb->texture == pt) { |
pipe_resource_reference(&pt, NULL); |
return FALSE; |
} |
|
/* unreference existing ones */ |
pipe_surface_reference(&strb->surface, NULL); |
pipe_resource_reference(&strb->texture, NULL); |
strb->width = strb->height = 0; |
|
strb->texture = pt; |
|
u_surface_default_template(&surf_tmpl, strb->texture); |
strb->surface = pipe->create_surface(pipe, strb->texture, &surf_tmpl); |
|
if (!strb->surface) { |
pipe_resource_reference(&strb->texture, NULL); |
return TRUE; |
} |
|
strb->width = pt->width0; |
strb->height = pt->height0; |
|
return TRUE; |
} |
|
/** |
* Flush the front buffer if the current context renders to the front buffer. |
*/ |
void |
vg_manager_flush_frontbuffer(struct vg_context *ctx) |
{ |
struct st_framebuffer *stfb = ctx->draw_buffer; |
|
if (!stfb) |
return; |
|
switch (stfb->strb_att) { |
case ST_ATTACHMENT_FRONT_LEFT: |
case ST_ATTACHMENT_FRONT_RIGHT: |
stfb->iface->flush_front(&ctx->iface, stfb->iface, stfb->strb_att); |
break; |
default: |
break; |
} |
} |
|
/** |
* Re-validate the framebuffer. |
*/ |
void |
vg_manager_validate_framebuffer(struct vg_context *ctx) |
{ |
struct st_framebuffer *stfb = ctx->draw_buffer; |
struct pipe_resource *pt; |
int32_t new_stamp; |
|
/* no binding surface */ |
if (!stfb) |
return; |
|
new_stamp = p_atomic_read(&stfb->iface->stamp); |
if (stfb->iface_stamp != new_stamp) { |
do { |
/* validate the fb */ |
if (!stfb->iface->validate((struct st_context_iface *)ctx, |
stfb->iface, &stfb->strb_att, |
1, &pt) || !pt) |
return; |
|
stfb->iface_stamp = new_stamp; |
new_stamp = p_atomic_read(&stfb->iface->stamp); |
|
} while (stfb->iface_stamp != new_stamp); |
|
if (vg_context_update_color_rb(ctx, pt) || |
stfb->width != pt->width0 || |
stfb->height != pt->height0) |
++stfb->stamp; |
|
stfb->width = pt->width0; |
stfb->height = pt->height0; |
} |
|
if (ctx->draw_stamp != stfb->stamp) { |
ctx->state.dirty |= FRAMEBUFFER_DIRTY; |
ctx->draw_stamp = stfb->stamp; |
} |
} |
|
static void |
vg_context_flush(struct st_context_iface *stctxi, unsigned flags, |
struct pipe_fence_handle **fence) |
{ |
struct vg_context *ctx = (struct vg_context *) stctxi; |
unsigned pipe_flags = 0; |
|
if (flags & ST_FLUSH_END_OF_FRAME) { |
pipe_flags |= PIPE_FLUSH_END_OF_FRAME; |
} |
|
ctx->pipe->flush(ctx->pipe, fence, pipe_flags); |
if (flags & ST_FLUSH_FRONT) |
vg_manager_flush_frontbuffer(ctx); |
} |
|
static void |
vg_context_destroy(struct st_context_iface *stctxi) |
{ |
struct vg_context *ctx = (struct vg_context *) stctxi; |
struct pipe_context *pipe = ctx->pipe; |
|
vg_destroy_context(ctx); |
pipe->destroy(pipe); |
} |
|
static struct st_context_iface * |
vg_api_create_context(struct st_api *stapi, struct st_manager *smapi, |
const struct st_context_attribs *attribs, |
enum st_context_error *error, |
struct st_context_iface *shared_stctxi) |
{ |
struct vg_context *shared_ctx = (struct vg_context *) shared_stctxi; |
struct vg_context *ctx; |
struct pipe_context *pipe; |
|
if (!(stapi->profile_mask & (1 << attribs->profile))) { |
*error = ST_CONTEXT_ERROR_BAD_API; |
return NULL; |
} |
|
/* only 1.0 is supported */ |
if (attribs->major > 1 || (attribs->major == 1 && attribs->minor > 0)) { |
*error = ST_CONTEXT_ERROR_BAD_VERSION; |
return NULL; |
} |
|
/* for VGHandle / pointer lookups */ |
init_handles(); |
|
pipe = smapi->screen->context_create(smapi->screen, NULL); |
if (!pipe) { |
*error = ST_CONTEXT_ERROR_NO_MEMORY; |
return NULL; |
} |
ctx = vg_create_context(pipe, NULL, shared_ctx); |
if (!ctx) { |
pipe->destroy(pipe); |
*error = ST_CONTEXT_ERROR_NO_MEMORY; |
return NULL; |
} |
|
ctx->iface.destroy = vg_context_destroy; |
|
ctx->iface.flush = vg_context_flush; |
|
ctx->iface.teximage = NULL; |
ctx->iface.copy = NULL; |
|
ctx->iface.st_context_private = (void *) smapi; |
|
return &ctx->iface; |
} |
|
static struct st_renderbuffer * |
create_renderbuffer(enum pipe_format format) |
{ |
struct st_renderbuffer *strb; |
|
strb = CALLOC_STRUCT(st_renderbuffer); |
if (strb) |
strb->format = format; |
|
return strb; |
} |
|
static void |
destroy_renderbuffer(struct st_renderbuffer *strb) |
{ |
pipe_surface_reference(&strb->surface, NULL); |
pipe_resource_reference(&strb->texture, NULL); |
FREE(strb); |
} |
|
/** |
* Decide the buffer to render to. |
*/ |
static enum st_attachment_type |
choose_attachment(struct st_framebuffer_iface *stfbi) |
{ |
enum st_attachment_type statt; |
|
statt = stfbi->visual->render_buffer; |
if (statt != ST_ATTACHMENT_INVALID) { |
/* use the buffer given by the visual, unless it is unavailable */ |
if (!st_visual_have_buffers(stfbi->visual, 1 << statt)) { |
switch (statt) { |
case ST_ATTACHMENT_BACK_LEFT: |
statt = ST_ATTACHMENT_FRONT_LEFT; |
break; |
case ST_ATTACHMENT_BACK_RIGHT: |
statt = ST_ATTACHMENT_FRONT_RIGHT; |
break; |
default: |
break; |
} |
|
if (!st_visual_have_buffers(stfbi->visual, 1 << statt)) |
statt = ST_ATTACHMENT_INVALID; |
} |
} |
|
return statt; |
} |
|
/** |
* Bind the context to the given framebuffers. |
*/ |
static boolean |
vg_context_bind_framebuffers(struct st_context_iface *stctxi, |
struct st_framebuffer_iface *stdrawi, |
struct st_framebuffer_iface *streadi) |
{ |
struct vg_context *ctx = (struct vg_context *) stctxi; |
struct st_framebuffer *stfb; |
enum st_attachment_type strb_att; |
|
/* the draw and read framebuffers must be the same */ |
if (stdrawi != streadi) |
return FALSE; |
|
strb_att = (stdrawi) ? choose_attachment(stdrawi) : ST_ATTACHMENT_INVALID; |
|
if (ctx->draw_buffer) { |
stfb = ctx->draw_buffer; |
|
/* free the existing fb */ |
if (!stdrawi || |
stfb->strb_att != strb_att || |
stfb->strb->format != stdrawi->visual->color_format) { |
destroy_renderbuffer(stfb->strb); |
destroy_renderbuffer(stfb->dsrb); |
FREE(stfb); |
|
ctx->draw_buffer = NULL; |
} |
} |
|
if (!stdrawi) |
return TRUE; |
|
if (strb_att == ST_ATTACHMENT_INVALID) |
return FALSE; |
|
/* create a new fb */ |
if (!ctx->draw_buffer) { |
stfb = CALLOC_STRUCT(st_framebuffer); |
if (!stfb) |
return FALSE; |
|
stfb->strb = create_renderbuffer(stdrawi->visual->color_format); |
if (!stfb->strb) { |
FREE(stfb); |
return FALSE; |
} |
|
stfb->dsrb = create_renderbuffer(ctx->ds_format); |
if (!stfb->dsrb) { |
FREE(stfb->strb); |
FREE(stfb); |
return FALSE; |
} |
|
stfb->width = 0; |
stfb->height = 0; |
stfb->strb_att = strb_att; |
stfb->stamp = 1; |
stfb->iface_stamp = p_atomic_read(&stdrawi->stamp) - 1; |
|
ctx->draw_buffer = stfb; |
} |
|
ctx->draw_buffer->iface = stdrawi; |
ctx->draw_stamp = ctx->draw_buffer->stamp - 1; |
|
return TRUE; |
} |
|
static boolean |
vg_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, |
struct st_framebuffer_iface *stdrawi, |
struct st_framebuffer_iface *streadi) |
{ |
struct vg_context *ctx = (struct vg_context *) stctxi; |
|
if (stctxi) |
vg_context_bind_framebuffers(stctxi, stdrawi, streadi); |
vg_set_current_context(ctx); |
|
return TRUE; |
} |
|
static struct st_context_iface * |
vg_api_get_current(struct st_api *stapi) |
{ |
struct vg_context *ctx = vg_current_context(); |
|
return (ctx) ? &ctx->iface : NULL; |
} |
|
static st_proc_t |
vg_api_get_proc_address(struct st_api *stapi, const char *procname) |
{ |
return api_get_proc_address(procname); |
} |
|
static void |
vg_api_destroy(struct st_api *stapi) |
{ |
} |
|
static const struct st_api vg_api = { |
"Vega " PACKAGE_VERSION, |
ST_API_OPENVG, |
ST_PROFILE_DEFAULT_MASK, |
0, |
vg_api_destroy, |
vg_api_get_proc_address, |
vg_api_create_context, |
vg_api_make_current, |
vg_api_get_current, |
}; |
|
const struct st_api * |
vg_api_get(void) |
{ |
return &vg_api; |
} |