0,0 → 1,544 |
/************************************************************************** |
* |
* Copyright 2009, VMware, Inc. |
* All Rights Reserved. |
* |
* 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, sub license, 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 (including the |
* next paragraph) 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 NON-INFRINGEMENT. |
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. |
* |
**************************************************************************/ |
/* |
* Author: Keith Whitwell <keithw@vmware.com> |
* Author: Jakob Bornecrantz <wallbraker@gmail.com> |
*/ |
|
#include "dri_screen.h" |
#include "dri_context.h" |
#include "dri_drawable.h" |
|
#include "pipe/p_screen.h" |
#include "util/u_format.h" |
#include "util/u_memory.h" |
#include "util/u_inlines.h" |
|
static void |
swap_fences_unref(struct dri_drawable *draw); |
|
static boolean |
dri_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) |
{ |
struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private; |
struct dri_drawable *drawable = |
(struct dri_drawable *) stfbi->st_manager_private; |
struct dri_screen *screen = dri_screen(drawable->sPriv); |
unsigned statt_mask, new_mask; |
boolean new_stamp; |
int i; |
unsigned int lastStamp; |
struct pipe_resource **textures = |
drawable->stvis.samples > 1 ? drawable->msaa_textures |
: drawable->textures; |
|
statt_mask = 0x0; |
for (i = 0; i < count; i++) |
statt_mask |= (1 << statts[i]); |
|
/* record newly allocated textures */ |
new_mask = (statt_mask & ~drawable->texture_mask); |
|
/* |
* dPriv->dri2.stamp is the server stamp. dPriv->lastStamp is the |
* client stamp. It has the value of the server stamp when last |
* checked. |
*/ |
do { |
lastStamp = drawable->dPriv->lastStamp; |
new_stamp = (drawable->texture_stamp != lastStamp); |
|
if (new_stamp || new_mask || screen->broken_invalidate) { |
if (new_stamp && drawable->update_drawable_info) |
drawable->update_drawable_info(drawable); |
|
drawable->allocate_textures(ctx, drawable, statts, count); |
|
/* add existing textures */ |
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) { |
if (textures[i]) |
statt_mask |= (1 << i); |
} |
|
drawable->texture_stamp = lastStamp; |
drawable->texture_mask = statt_mask; |
} |
} while (lastStamp != drawable->dPriv->lastStamp); |
|
if (!out) |
return TRUE; |
|
/* Set the window-system buffers for the state tracker. */ |
for (i = 0; i < count; i++) { |
out[i] = NULL; |
pipe_resource_reference(&out[i], textures[statts[i]]); |
} |
|
return TRUE; |
} |
|
static boolean |
dri_st_framebuffer_flush_front(struct st_context_iface *stctx, |
struct st_framebuffer_iface *stfbi, |
enum st_attachment_type statt) |
{ |
struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private; |
struct dri_drawable *drawable = |
(struct dri_drawable *) stfbi->st_manager_private; |
|
/* XXX remove this and just set the correct one on the framebuffer */ |
drawable->flush_frontbuffer(ctx, drawable, statt); |
|
return TRUE; |
} |
|
/** |
* This is called when we need to set up GL rendering to a new X window. |
*/ |
boolean |
dri_create_buffer(__DRIscreen * sPriv, |
__DRIdrawable * dPriv, |
const struct gl_config * visual, boolean isPixmap) |
{ |
struct dri_screen *screen = sPriv->driverPrivate; |
struct dri_drawable *drawable = NULL; |
|
if (isPixmap) |
goto fail; /* not implemented */ |
|
drawable = CALLOC_STRUCT(dri_drawable); |
if (drawable == NULL) |
goto fail; |
|
dri_fill_st_visual(&drawable->stvis, screen, visual); |
|
/* setup the st_framebuffer_iface */ |
drawable->base.visual = &drawable->stvis; |
drawable->base.flush_front = dri_st_framebuffer_flush_front; |
drawable->base.validate = dri_st_framebuffer_validate; |
drawable->base.st_manager_private = (void *) drawable; |
|
drawable->screen = screen; |
drawable->sPriv = sPriv; |
drawable->dPriv = dPriv; |
drawable->desired_fences = screen->default_throttle_frames; |
if (drawable->desired_fences > DRI_SWAP_FENCES_MAX) |
drawable->desired_fences = DRI_SWAP_FENCES_MAX; |
|
dPriv->driverPrivate = (void *)drawable; |
p_atomic_set(&drawable->base.stamp, 1); |
|
return GL_TRUE; |
fail: |
FREE(drawable); |
return GL_FALSE; |
} |
|
void |
dri_destroy_buffer(__DRIdrawable * dPriv) |
{ |
struct dri_drawable *drawable = dri_drawable(dPriv); |
int i; |
|
pipe_surface_reference(&drawable->drisw_surface, NULL); |
|
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) |
pipe_resource_reference(&drawable->textures[i], NULL); |
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) |
pipe_resource_reference(&drawable->msaa_textures[i], NULL); |
|
swap_fences_unref(drawable); |
|
FREE(drawable); |
} |
|
/** |
* Validate the texture at an attachment. Allocate the texture if it does not |
* exist. Used by the TFP extension. |
*/ |
static void |
dri_drawable_validate_att(struct dri_context *ctx, |
struct dri_drawable *drawable, |
enum st_attachment_type statt) |
{ |
enum st_attachment_type statts[ST_ATTACHMENT_COUNT]; |
unsigned i, count = 0; |
|
/* check if buffer already exists */ |
if (drawable->texture_mask & (1 << statt)) |
return; |
|
/* make sure DRI2 does not destroy existing buffers */ |
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) { |
if (drawable->texture_mask & (1 << i)) { |
statts[count++] = i; |
} |
} |
statts[count++] = statt; |
|
drawable->texture_stamp = drawable->dPriv->lastStamp - 1; |
|
drawable->base.validate(ctx->st, &drawable->base, statts, count, NULL); |
} |
|
/** |
* These are used for GLX_EXT_texture_from_pixmap |
*/ |
static void |
dri_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target, |
GLint format, __DRIdrawable *dPriv) |
{ |
struct dri_context *ctx = dri_context(pDRICtx); |
struct dri_drawable *drawable = dri_drawable(dPriv); |
struct pipe_resource *pt; |
|
dri_drawable_validate_att(ctx, drawable, ST_ATTACHMENT_FRONT_LEFT); |
|
/* Use the pipe resource associated with the X drawable */ |
pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT]; |
|
if (pt) { |
enum pipe_format internal_format = pt->format; |
|
if (format == __DRI_TEXTURE_FORMAT_RGB) { |
/* only need to cover the formats recognized by dri_fill_st_visual */ |
switch (internal_format) { |
case PIPE_FORMAT_B8G8R8A8_UNORM: |
internal_format = PIPE_FORMAT_B8G8R8X8_UNORM; |
break; |
case PIPE_FORMAT_A8R8G8B8_UNORM: |
internal_format = PIPE_FORMAT_X8R8G8B8_UNORM; |
break; |
default: |
break; |
} |
} |
|
drawable->update_tex_buffer(drawable, ctx, pt); |
|
ctx->st->teximage(ctx->st, |
(target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT, |
0, internal_format, pt, FALSE); |
} |
} |
|
static void |
dri_set_tex_buffer(__DRIcontext *pDRICtx, GLint target, |
__DRIdrawable *dPriv) |
{ |
dri_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv); |
} |
|
const __DRItexBufferExtension driTexBufferExtension = { |
{ __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, |
dri_set_tex_buffer, |
dri_set_tex_buffer2, |
NULL, |
}; |
|
/** |
* Get the format and binding of an attachment. |
*/ |
void |
dri_drawable_get_format(struct dri_drawable *drawable, |
enum st_attachment_type statt, |
enum pipe_format *format, |
unsigned *bind) |
{ |
switch (statt) { |
case ST_ATTACHMENT_FRONT_LEFT: |
case ST_ATTACHMENT_BACK_LEFT: |
case ST_ATTACHMENT_FRONT_RIGHT: |
case ST_ATTACHMENT_BACK_RIGHT: |
*format = drawable->stvis.color_format; |
*bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; |
break; |
case ST_ATTACHMENT_DEPTH_STENCIL: |
*format = drawable->stvis.depth_stencil_format; |
*bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */ |
break; |
default: |
*format = PIPE_FORMAT_NONE; |
*bind = 0; |
break; |
} |
} |
|
|
/** |
* swap_fences_pop_front - pull a fence from the throttle queue |
* |
* If the throttle queue is filled to the desired number of fences, |
* pull fences off the queue until the number is less than the desired |
* number of fences, and return the last fence pulled. |
*/ |
static struct pipe_fence_handle * |
swap_fences_pop_front(struct dri_drawable *draw) |
{ |
struct pipe_screen *screen = draw->screen->base.screen; |
struct pipe_fence_handle *fence = NULL; |
|
if (draw->desired_fences == 0) |
return NULL; |
|
if (draw->cur_fences >= draw->desired_fences) { |
screen->fence_reference(screen, &fence, draw->swap_fences[draw->tail]); |
screen->fence_reference(screen, &draw->swap_fences[draw->tail++], NULL); |
draw->tail &= DRI_SWAP_FENCES_MASK; |
--draw->cur_fences; |
} |
return fence; |
} |
|
|
/** |
* swap_fences_push_back - push a fence onto the throttle queue |
* |
* push a fence onto the throttle queue and pull fences of the queue |
* so that the desired number of fences are on the queue. |
*/ |
static void |
swap_fences_push_back(struct dri_drawable *draw, |
struct pipe_fence_handle *fence) |
{ |
struct pipe_screen *screen = draw->screen->base.screen; |
|
if (!fence || draw->desired_fences == 0) |
return; |
|
while(draw->cur_fences == draw->desired_fences) |
swap_fences_pop_front(draw); |
|
draw->cur_fences++; |
screen->fence_reference(screen, &draw->swap_fences[draw->head++], |
fence); |
draw->head &= DRI_SWAP_FENCES_MASK; |
} |
|
|
/** |
* swap_fences_unref - empty the throttle queue |
* |
* pulls fences of the throttle queue until it is empty. |
*/ |
static void |
swap_fences_unref(struct dri_drawable *draw) |
{ |
struct pipe_screen *screen = draw->screen->base.screen; |
|
while(draw->cur_fences) { |
screen->fence_reference(screen, &draw->swap_fences[draw->tail++], NULL); |
draw->tail &= DRI_SWAP_FENCES_MASK; |
--draw->cur_fences; |
} |
} |
|
void |
dri_pipe_blit(struct pipe_context *pipe, |
struct pipe_resource *dst, |
struct pipe_resource *src) |
{ |
struct pipe_blit_info blit; |
|
if (!dst || !src) |
return; |
|
memset(&blit, 0, sizeof(blit)); |
blit.dst.resource = dst; |
blit.dst.box.width = dst->width0; |
blit.dst.box.height = dst->height0; |
blit.dst.box.depth = 1; |
blit.dst.format = util_format_linear(dst->format); |
blit.src.resource = src; |
blit.src.box.width = src->width0; |
blit.src.box.height = src->height0; |
blit.src.box.depth = 1; |
blit.src.format = util_format_linear(src->format); |
blit.mask = PIPE_MASK_RGBA; |
blit.filter = PIPE_TEX_FILTER_NEAREST; |
|
pipe->blit(pipe, &blit); |
} |
|
static void |
dri_postprocessing(struct dri_context *ctx, |
struct dri_drawable *drawable, |
enum st_attachment_type att) |
{ |
struct pipe_resource *src = drawable->textures[att]; |
struct pipe_resource *zsbuf = drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]; |
|
if (ctx->pp && src && zsbuf) |
pp_run(ctx->pp, src, src, zsbuf); |
} |
|
/** |
* DRI2 flush extension, the flush_with_flags function. |
* |
* \param context the context |
* \param drawable the drawable to flush |
* \param flags a combination of _DRI2_FLUSH_xxx flags |
* \param throttle_reason the reason for throttling, 0 = no throttling |
*/ |
void |
dri_flush(__DRIcontext *cPriv, |
__DRIdrawable *dPriv, |
unsigned flags, |
enum __DRI2throttleReason reason) |
{ |
struct dri_context *ctx = dri_context(cPriv); |
struct dri_drawable *drawable = dri_drawable(dPriv); |
unsigned flush_flags; |
boolean swap_msaa_buffers = FALSE; |
|
if (!ctx) { |
assert(0); |
return; |
} |
|
if (drawable) { |
/* prevent recursion */ |
if (drawable->flushing) |
return; |
|
drawable->flushing = TRUE; |
} |
else { |
flags &= ~__DRI2_FLUSH_DRAWABLE; |
} |
|
/* Flush the drawable. */ |
if ((flags & __DRI2_FLUSH_DRAWABLE) && |
drawable->textures[ST_ATTACHMENT_BACK_LEFT]) { |
if (drawable->stvis.samples > 1 && |
reason == __DRI2_THROTTLE_SWAPBUFFER) { |
/* Resolve the MSAA back buffer. */ |
dri_pipe_blit(ctx->st->pipe, |
drawable->textures[ST_ATTACHMENT_BACK_LEFT], |
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]); |
|
if (drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] && |
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]) { |
swap_msaa_buffers = TRUE; |
} |
|
/* FRONT_LEFT is resolved in drawable->flush_frontbuffer. */ |
} |
|
dri_postprocessing(ctx, drawable, ST_ATTACHMENT_BACK_LEFT); |
|
if (ctx->hud) { |
hud_draw(ctx->hud, drawable->textures[ST_ATTACHMENT_BACK_LEFT]); |
} |
} |
|
flush_flags = 0; |
if (flags & __DRI2_FLUSH_CONTEXT) |
flush_flags |= ST_FLUSH_FRONT; |
if (reason == __DRI2_THROTTLE_SWAPBUFFER) |
flush_flags |= ST_FLUSH_END_OF_FRAME; |
|
/* Flush the context and throttle if needed. */ |
if (dri_screen(ctx->sPriv)->throttling_enabled && |
drawable && |
(reason == __DRI2_THROTTLE_SWAPBUFFER || |
reason == __DRI2_THROTTLE_FLUSHFRONT)) { |
/* Throttle. |
* |
* This pulls a fence off the throttling queue and waits for it if the |
* number of fences on the throttling queue has reached the desired |
* number. |
* |
* Then flushes to insert a fence at the current rendering position, and |
* pushes that fence on the queue. This requires that the st_context_iface |
* flush method returns a fence even if there are no commands to flush. |
*/ |
struct pipe_screen *screen = drawable->screen->base.screen; |
struct pipe_fence_handle *fence; |
|
fence = swap_fences_pop_front(drawable); |
if (fence) { |
(void) screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE); |
screen->fence_reference(screen, &fence, NULL); |
} |
|
ctx->st->flush(ctx->st, flush_flags, &fence); |
|
if (fence) { |
swap_fences_push_back(drawable, fence); |
screen->fence_reference(screen, &fence, NULL); |
} |
} |
else if (flags & (__DRI2_FLUSH_DRAWABLE | __DRI2_FLUSH_CONTEXT)) { |
ctx->st->flush(ctx->st, flush_flags, NULL); |
} |
|
if (drawable) { |
drawable->flushing = FALSE; |
} |
|
/* Swap the MSAA front and back buffers, so that reading |
* from the front buffer after SwapBuffers returns what was |
* in the back buffer. |
*/ |
if (swap_msaa_buffers) { |
struct pipe_resource *tmp = |
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT]; |
|
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] = |
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]; |
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT] = tmp; |
|
/* Now that we have swapped the buffers, this tells the state |
* tracker to revalidate the framebuffer. |
*/ |
p_atomic_inc(&drawable->base.stamp); |
} |
} |
|
/** |
* dri_throttle - A DRI2ThrottleExtension throttling function. |
*/ |
static void |
dri_throttle(__DRIcontext *cPriv, __DRIdrawable *dPriv, |
enum __DRI2throttleReason reason) |
{ |
dri_flush(cPriv, dPriv, 0, reason); |
} |
|
|
const __DRI2throttleExtension dri2ThrottleExtension = { |
.base = { __DRI2_THROTTLE, __DRI2_THROTTLE_VERSION }, |
.throttle = dri_throttle, |
}; |
|
|
/* vim: set sw=3 ts=8 sts=3 expandtab: */ |