static void
leave_meta_state(struct intel_context *intel)
{
struct i830_context *i830 = i830_context(&intel->ctx);
intel_region_release(&i830->meta.draw_region);
intel_region_release(&i830->meta.depth_region);
/* intel_region_release(intel, &i830->meta.tex_region[0]); */
SET_STATE(i830, state);
}
/* called from intelDrawBuffer()
*/
static void brw_set_draw_region( struct intel_context *intel,
struct intel_region *draw_region,
struct intel_region *depth_region)
{
struct brw_context *brw = brw_context(&intel->ctx);
intel_region_release(intel, &brw->state.draw_region);
intel_region_release(intel, &brw->state.depth_region);
intel_region_reference(&brw->state.draw_region, draw_region);
intel_region_reference(&brw->state.depth_region, depth_region);
}
struct intel_region *
intel_region_alloc_for_handle(struct intel_context *intel,
GLuint cpp,
GLuint width, GLuint height, GLuint pitch,
GLuint handle, const char *name)
{
struct intel_region *region;
dri_bo *buffer;
int ret;
buffer = intel_bo_gem_create_from_name(intel->bufmgr, name, handle);
region = intel_region_alloc_internal(intel, cpp,
width, height, pitch, buffer);
if (region == NULL)
return region;
ret = dri_bo_get_tiling(region->buffer, ®ion->tiling,
®ion->bit_6_swizzle);
if (ret != 0) {
fprintf(stderr, "Couldn't get tiling of buffer %d (%s): %s\n",
handle, name, strerror(-ret));
intel_region_release(®ion);
return NULL;
}
return region;
}
static void
intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer)
{
struct intel_buffer *intelBuffer = (struct intel_buffer *) buffer;
intel_region_release(&intelBuffer->region);
free(intelBuffer);
}
/**
* \brief Assign a DRI buffer's DRM region to a renderbuffer.
*
* This is called from intel_update_renderbuffers().
*
* \par Note:
* DRI buffers whose attachment point is DRI2BufferStencil or
* DRI2BufferDepthStencil are handled as special cases.
*
* \param buffer_name is a human readable name, such as "dri2 front buffer",
* that is passed to intel_region_alloc_for_handle().
*
* \see intel_update_renderbuffers()
* \see intel_region_alloc_for_handle()
*/
static void
intel_process_dri2_buffer(struct intel_context *intel,
__DRIdrawable *drawable,
__DRIbuffer *buffer,
struct intel_renderbuffer *rb,
const char *buffer_name)
{
struct intel_region *region = NULL;
if (!rb)
return;
unsigned num_samples = rb->Base.Base.NumSamples;
/* We try to avoid closing and reopening the same BO name, because the first
* use of a mapping of the buffer involves a bunch of page faulting which is
* moderately expensive.
*/
if (num_samples == 0) {
if (rb->mt &&
rb->mt->region &&
rb->mt->region->name == buffer->name)
return;
} else {
if (rb->mt &&
rb->mt->singlesample_mt &&
rb->mt->singlesample_mt->region &&
rb->mt->singlesample_mt->region->name == buffer->name)
return;
}
if (unlikely(INTEL_DEBUG & DEBUG_DRI)) {
fprintf(stderr,
"attaching buffer %d, at %d, cpp %d, pitch %d\n",
buffer->name, buffer->attachment,
buffer->cpp, buffer->pitch);
}
intel_miptree_release(&rb->mt);
region = intel_region_alloc_for_handle(intel->intelScreen,
buffer->cpp,
drawable->w,
drawable->h,
buffer->pitch / buffer->cpp,
buffer->name,
buffer_name);
if (!region)
return;
rb->mt = intel_miptree_create_for_dri2_buffer(intel,
buffer->attachment,
intel_rb_format(rb),
num_samples,
region);
intel_region_release(®ion);
}
void
intel_renderbuffer_set_region(struct intel_renderbuffer *rb,
struct intel_region *region)
{
struct intel_region *old;
old = rb->region;
rb->region = NULL;
intel_region_reference(&rb->region, region);
intel_region_release(&old);
}
void
intel_renderbuffer_set_region(struct intel_renderbuffer *rb,
struct intel_region *region)
{
struct intel_region *old;
old = rb->region;
rb->region = NULL;
intel_region_reference(&rb->region, region);
intel_region_release(&old);
rb->pfMap = region->map;
rb->pfPitch = region->pitch;
}
void
intel_region_reference(struct intel_region **dst, struct intel_region *src)
{
_DBG("%s: %p(%d) -> %p(%d)\n", __FUNCTION__,
*dst, *dst ? (*dst)->refcount : 0, src, src ? src->refcount : 0);
if (src != *dst) {
if (*dst)
intel_region_release(dst);
if (src)
src->refcount++;
*dst = src;
}
}
/**
* Called by Mesa when rendering to a texture is done.
*/
static void
intel_finish_render_texture(GLcontext * ctx,
struct gl_renderbuffer_attachment *att)
{
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
DBG("End render texture (tid %x) tex %u\n", _glthread_GetID(), att->Texture->Name);
if (irb) {
/* just release the region */
intel_region_release(&irb->region);
}
else if (att->Renderbuffer) {
/* software fallback */
_mesa_finish_render_texture(ctx, att);
/* XXX FBO: Need to unmap the buffer (or in intelSpanRenderStart???) */
}
}
/** Called by gl_renderbuffer::Delete() */
static void
intel_delete_renderbuffer(struct gl_renderbuffer *rb)
{
GET_CURRENT_CONTEXT(ctx);
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
ASSERT(irb);
if (irb->span_cache != NULL)
_mesa_free(irb->span_cache);
if (intel && irb->region) {
intel_region_release(&irb->region);
}
_mesa_free(irb);
}
static void
intel_delete_renderbuffer(struct gl_renderbuffer *rb)
{
GET_CURRENT_CONTEXT(ctx);
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
ASSERT(irb);
if (irb->PairedStencil || irb->PairedDepth) {
intel_unpair_depth_stencil(ctx, irb);
}
if (intel && irb->region) {
intel_region_release(&irb->region);
}
_mesa_free(irb);
}
void
intel_miptree_release(struct intel_mipmap_tree **mt)
{
if (!*mt)
return;
DBG("%s %p refcount will be %d\n", __func__, *mt, (*mt)->refcount - 1);
if (--(*mt)->refcount <= 0) {
GLuint i;
DBG("%s deleting %p\n", __func__, *mt);
intel_region_release(&((*mt)->region));
for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
free((*mt)->level[i].slice);
}
free(*mt);
}
*mt = NULL;
}
void
intel_miptree_release(struct intel_context *intel,
struct intel_mipmap_tree **mt)
{
if (!*mt)
return;
DBG("%s %p refcount will be %d\n", __FUNCTION__, *mt, (*mt)->refcount - 1);
if (--(*mt)->refcount <= 0) {
GLuint i;
DBG("%s deleting %p\n", __FUNCTION__, *mt);
intel_region_release(&((*mt)->region));
for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
if ((*mt)->level[i].image_offset)
free((*mt)->level[i].image_offset);
free(*mt);
}
*mt = NULL;
}
/**
* Called via glRenderbufferStorageEXT() to set the format and allocate
* storage for a user-created renderbuffer.
*/
static GLboolean
intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height)
{
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
int cpp;
GLuint pitch;
ASSERT(rb->Name != 0);
switch (internalFormat) {
case GL_R3_G3_B2:
case GL_RGB4:
case GL_RGB5:
rb->Format = MESA_FORMAT_RGB565;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_RGB:
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
rb->Format = MESA_FORMAT_XRGB8888;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_RGBA:
case GL_RGBA2:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
rb->Format = MESA_FORMAT_ARGB8888;
rb->DataType = GL_UNSIGNED_BYTE;
break;
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
/* alloc a depth+stencil buffer */
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
case GL_DEPTH_COMPONENT16:
rb->Format = MESA_FORMAT_Z16;
rb->DataType = GL_UNSIGNED_SHORT;
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
rb->Format = MESA_FORMAT_S8_Z24;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
break;
default:
_mesa_problem(ctx,
"Unexpected format in intel_alloc_renderbuffer_storage");
return GL_FALSE;
}
rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
cpp = _mesa_get_format_bytes(rb->Format);
intelFlush(ctx);
/* free old region */
if (irb->region) {
intel_region_release(&irb->region);
}
/* allocate new memory region/renderbuffer */
/* Choose a pitch to match hardware requirements:
*/
pitch = ((cpp * width + 63) & ~63) / cpp;
/* alloc hardware renderbuffer */
DBG("Allocating %d x %d Intel RBO (pitch %d)\n", width, height, pitch);
irb->region = intel_region_alloc(intel, I915_TILING_NONE, cpp,
width, height, pitch, GL_TRUE);
if (!irb->region)
return GL_FALSE; /* out of memory? */
ASSERT(irb->region->buffer);
rb->Width = width;
rb->Height = height;
return GL_TRUE;
}
struct intel_mipmap_tree *
intel_miptree_create(struct intel_context *intel,
GLenum target,
mesa_format format,
GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
bool expect_accelerated_upload,
enum intel_miptree_tiling_mode requested_tiling)
{
struct intel_mipmap_tree *mt;
GLuint total_width, total_height;
mt = intel_miptree_create_layout(intel, target, format,
first_level, last_level, width0,
height0, depth0,
false);
/*
* pitch == 0 || height == 0 indicates the null texture
*/
if (!mt || !mt->total_width || !mt->total_height) {
intel_miptree_release(&mt);
return NULL;
}
total_width = mt->total_width;
total_height = mt->total_height;
uint32_t tiling = intel_miptree_choose_tiling(intel, format, width0,
requested_tiling,
mt);
bool y_or_x = tiling == (I915_TILING_Y | I915_TILING_X);
mt->region = intel_region_alloc(intel->intelScreen,
y_or_x ? I915_TILING_Y : tiling,
mt->cpp,
total_width,
total_height,
expect_accelerated_upload);
/* If the region is too large to fit in the aperture, we need to use the
* BLT engine to support it. The BLT paths can't currently handle Y-tiling,
* so we need to fall back to X.
*/
if (y_or_x && mt->region->bo->size >= intel->max_gtt_map_object_size) {
perf_debug("%dx%d miptree larger than aperture; falling back to X-tiled\n",
mt->total_width, mt->total_height);
intel_region_release(&mt->region);
mt->region = intel_region_alloc(intel->intelScreen,
I915_TILING_X,
mt->cpp,
total_width,
total_height,
expect_accelerated_upload);
}
mt->offset = 0;
if (!mt->region) {
intel_miptree_release(&mt);
return NULL;
}
return mt;
}
/**
* Called via glRenderbufferStorageEXT() to set the format and allocate
* storage for a user-created renderbuffer.
*/
static GLboolean
intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
GLenum internalFormat,
GLuint width, GLuint height)
{
struct intel_context *intel = intel_context(ctx);
struct intel_renderbuffer *irb = intel_renderbuffer(rb);
GLboolean softwareBuffer = GL_FALSE;
int cpp;
ASSERT(rb->Name != 0);
switch (internalFormat) {
case GL_R3_G3_B2:
case GL_RGB4:
case GL_RGB5:
rb->_ActualFormat = GL_RGB5;
rb->DataType = GL_UNSIGNED_BYTE;
rb->RedBits = 5;
rb->GreenBits = 6;
rb->BlueBits = 5;
cpp = 2;
break;
case GL_RGB:
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
case GL_RGBA:
case GL_RGBA2:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
rb->_ActualFormat = GL_RGBA8;
rb->DataType = GL_UNSIGNED_BYTE;
rb->RedBits = 8;
rb->GreenBits = 8;
rb->BlueBits = 8;
rb->AlphaBits = 8;
cpp = 4;
break;
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
/* alloc a depth+stencil buffer */
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->StencilBits = 8;
cpp = 4;
break;
case GL_DEPTH_COMPONENT16:
rb->_ActualFormat = GL_DEPTH_COMPONENT16;
rb->DataType = GL_UNSIGNED_SHORT;
rb->DepthBits = 16;
cpp = 2;
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->DepthBits = 24;
cpp = 4;
break;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
rb->_ActualFormat = GL_DEPTH24_STENCIL8_EXT;
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->DepthBits = 24;
rb->StencilBits = 8;
cpp = 4;
break;
default:
_mesa_problem(ctx,
"Unexpected format in intel_alloc_renderbuffer_storage");
return GL_FALSE;
}
intelFlush(ctx);
/* free old region */
if (irb->region) {
intel_region_release(&irb->region);
}
/* allocate new memory region/renderbuffer */
if (softwareBuffer) {
return _mesa_soft_renderbuffer_storage(ctx, rb, internalFormat,
width, height);
}
else {
/* Choose a pitch to match hardware requirements:
*/
GLuint pitch = ((cpp * width + 63) & ~63) / cpp;
/* alloc hardware renderbuffer */
DBG("Allocating %d x %d Intel RBO (pitch %d)\n", width,
height, pitch);
irb->region = intel_region_alloc(intel, cpp, pitch, height);
if (!irb->region)
return GL_FALSE; /* out of memory? */
ASSERT(irb->region->buffer);
rb->Width = width;
rb->Height = height;
/* This sets the Get/PutRow/Value functions */
intel_set_span_functions(&irb->Base);
return GL_TRUE;
}
}
/**
* Called by glFramebufferTexture[123]DEXT() (and other places) to
* prepare for rendering into texture memory. This might be called
* many times to choose different texture levels, cube faces, etc
* before intel_finish_render_texture() is ever called.
*/
static void
intel_render_texture(GLcontext * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
struct intel_texture_image *intel_image;
GLuint dst_x, dst_y;
(void) fb;
ASSERT(newImage);
intel_image = intel_texture_image(newImage);
if (!intel_image->mt) {
/* Fallback on drawing to a texture that doesn't have a miptree
* (has a border, width/height 0, etc.)
*/
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
else if (!irb) {
irb = intel_wrap_texture(ctx, newImage);
if (irb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
}
if (!intel_update_wrapper(ctx, irb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
irb->Base.RefCount);
/* point the renderbufer's region to the texture image region */
if (irb->region != intel_image->mt->region) {
if (irb->region)
intel_region_release(&irb->region);
intel_region_reference(&irb->region, intel_image->mt->region);
}
/* compute offset of the particular 2D image within the texture region */
intel_miptree_get_image_offset(intel_image->mt,
att->TextureLevel,
att->CubeMapFace,
att->Zoffset,
&dst_x, &dst_y);
intel_image->mt->region->draw_offset = (dst_y * intel_image->mt->pitch +
dst_x) * intel_image->mt->cpp;
intel_image->mt->region->draw_x = dst_x;
intel_image->mt->region->draw_y = dst_y;
intel_image->used_as_render_target = GL_TRUE;
/* update drawing region, etc */
intel_draw_buffer(ctx, fb);
}
/**
* Called by glFramebufferTexture[123]DEXT() (and other places) to
* prepare for rendering into texture memory. This might be called
* many times to choose different texture levels, cube faces, etc
* before intel_finish_render_texture() is ever called.
*/
static void
intel_render_texture(GLcontext * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
struct intel_texture_image *intel_image;
GLuint imageOffset;
(void) fb;
ASSERT(newImage);
if (!irb) {
irb = intel_wrap_texture(ctx, newImage);
if (irb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
} if (!intel_update_wrapper(ctx, irb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
irb->Base.RefCount);
/* point the renderbufer's region to the texture image region */
intel_image = intel_texture_image(newImage);
if (irb->region != intel_image->mt->region) {
if (irb->region)
intel_region_release(&irb->region);
intel_region_reference(&irb->region, intel_image->mt->region);
}
/* compute offset of the particular 2D image within the texture region */
imageOffset = intel_miptree_image_offset(intel_image->mt,
att->CubeMapFace,
att->TextureLevel);
if (att->Texture->Target == GL_TEXTURE_3D) {
const GLuint *offsets = intel_miptree_depth_offsets(intel_image->mt,
att->TextureLevel);
imageOffset += offsets[att->Zoffset];
}
/* store that offset in the region */
intel_image->mt->region->draw_offset = imageOffset;
/* update drawing region, etc */
intel_draw_buffer(ctx, fb);
}
static void
intel_destroy_image(__DRIimage *image)
{
intel_region_release(&image->region);
free(image);
}
static struct intel_region *
intel_recreate_static(struct intel_context *intel,
const char *name,
struct intel_region *region,
intelRegion *region_desc)
{
intelScreenPrivate *intelScreen = intel->intelScreen;
int ret;
if (region == NULL) {
region = calloc(sizeof(*region), 1);
region->refcount = 1;
}
if (intel->ctx.Visual.rgbBits == 24)
region->cpp = 4;
else
region->cpp = intel->ctx.Visual.rgbBits / 8;
region->pitch = intelScreen->pitch;
region->width = intelScreen->width;
region->height = intelScreen->height;
if (region->buffer != NULL) {
dri_bo_unreference(region->buffer);
region->buffer = NULL;
}
if (intel->ttm) {
assert(region_desc->bo_handle != -1);
region->buffer = intel_bo_gem_create_from_name(intel->bufmgr,
name,
region_desc->bo_handle);
ret = dri_bo_get_tiling(region->buffer, ®ion->tiling,
®ion->bit_6_swizzle);
if (ret != 0) {
fprintf(stderr, "Couldn't get tiling of buffer %d (%s): %s\n",
region_desc->bo_handle, name, strerror(-ret));
intel_region_release(®ion);
return NULL;
}
} else {
if (region->classic_map != NULL) {
drmUnmap(region->classic_map,
region->pitch * region->cpp * region->height);
region->classic_map = NULL;
}
ret = drmMap(intel->driFd, region_desc->handle,
region->pitch * region->cpp * region->height,
®ion->classic_map);
if (ret != 0) {
fprintf(stderr, "Failed to drmMap %s buffer\n", name);
free(region);
return NULL;
}
region->buffer = intel_bo_fake_alloc_static(intel->bufmgr,
name,
region_desc->offset,
region->pitch * region->cpp *
region->height,
region->classic_map);
/* The sarea just gives us a boolean for whether it's tiled or not,
* instead of which tiling mode it is. Guess.
*/
if (region_desc->tiled) {
if (IS_965(intel->intelScreen->deviceID) &&
region_desc == &intelScreen->depth)
region->tiling = I915_TILING_Y;
else
region->tiling = I915_TILING_X;
} else {
region->tiling = I915_TILING_NONE;
}
region->bit_6_swizzle = I915_BIT_6_SWIZZLE_NONE;
}
assert(region->buffer != NULL);
return region;
}
void
intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
{
struct gl_framebuffer *fb = drawable->driverPrivate;
struct intel_renderbuffer *rb;
struct intel_region *region, *depth_region;
struct intel_context *intel = context->driverPrivate;
struct intel_renderbuffer *front_rb, *back_rb, *depth_rb, *stencil_rb;
__DRIbuffer *buffers = NULL;
__DRIscreen *screen;
int i, count;
unsigned int attachments[10];
const char *region_name;
/* If we're rendering to the fake front buffer, make sure all the
* pending drawing has landed on the real front buffer. Otherwise
* when we eventually get to DRI2GetBuffersWithFormat the stale
* real front buffer contents will get copied to the new fake front
* buffer.
*/
if (intel->is_front_buffer_rendering)
intel_flush(&intel->ctx, GL_FALSE);
/* Set this up front, so that in case our buffers get invalidated
* while we're getting new buffers, we don't clobber the stamp and
* thus ignore the invalidate. */
drawable->lastStamp = drawable->dri2.stamp;
if (INTEL_DEBUG & DEBUG_DRI)
fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
screen = intel->intelScreen->driScrnPriv;
if (screen->dri2.loader
&& (screen->dri2.loader->base.version > 2)
&& (screen->dri2.loader->getBuffersWithFormat != NULL)) {
front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
depth_rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
stencil_rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
i = 0;
if ((intel->is_front_buffer_rendering ||
intel->is_front_buffer_reading ||
!back_rb) && front_rb) {
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
attachments[i++] = intel_bits_per_pixel(front_rb);
}
if (back_rb) {
attachments[i++] = __DRI_BUFFER_BACK_LEFT;
attachments[i++] = intel_bits_per_pixel(back_rb);
}
if ((depth_rb != NULL) && (stencil_rb != NULL)) {
attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL;
attachments[i++] = intel_bits_per_pixel(depth_rb);
} else if (depth_rb != NULL) {
attachments[i++] = __DRI_BUFFER_DEPTH;
attachments[i++] = intel_bits_per_pixel(depth_rb);
} else if (stencil_rb != NULL) {
attachments[i++] = __DRI_BUFFER_STENCIL;
attachments[i++] = intel_bits_per_pixel(stencil_rb);
}
buffers =
(*screen->dri2.loader->getBuffersWithFormat)(drawable,
&drawable->w,
&drawable->h,
attachments, i / 2,
&count,
drawable->loaderPrivate);
} else if (screen->dri2.loader) {
i = 0;
if (intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT))
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
if (intel_get_renderbuffer(fb, BUFFER_BACK_LEFT))
attachments[i++] = __DRI_BUFFER_BACK_LEFT;
if (intel_get_renderbuffer(fb, BUFFER_DEPTH))
attachments[i++] = __DRI_BUFFER_DEPTH;
if (intel_get_renderbuffer(fb, BUFFER_STENCIL))
attachments[i++] = __DRI_BUFFER_STENCIL;
buffers = (*screen->dri2.loader->getBuffers)(drawable,
&drawable->w,
&drawable->h,
attachments, i,
&count,
drawable->loaderPrivate);
}
if (buffers == NULL)
return;
drawable->x = 0;
drawable->y = 0;
drawable->backX = 0;
drawable->backY = 0;
drawable->numClipRects = 1;
drawable->pClipRects[0].x1 = 0;
drawable->pClipRects[0].y1 = 0;
drawable->pClipRects[0].x2 = drawable->w;
drawable->pClipRects[0].y2 = drawable->h;
drawable->numBackClipRects = 1;
drawable->pBackClipRects[0].x1 = 0;
drawable->pBackClipRects[0].y1 = 0;
drawable->pBackClipRects[0].x2 = drawable->w;
drawable->pBackClipRects[0].y2 = drawable->h;
depth_region = NULL;
for (i = 0; i < count; i++) {
switch (buffers[i].attachment) {
case __DRI_BUFFER_FRONT_LEFT:
rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
region_name = "dri2 front buffer";
break;
case __DRI_BUFFER_FAKE_FRONT_LEFT:
rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
region_name = "dri2 fake front buffer";
break;
case __DRI_BUFFER_BACK_LEFT:
rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
region_name = "dri2 back buffer";
break;
case __DRI_BUFFER_DEPTH:
rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
region_name = "dri2 depth buffer";
break;
case __DRI_BUFFER_DEPTH_STENCIL:
rb = intel_get_renderbuffer(fb, BUFFER_DEPTH);
region_name = "dri2 depth / stencil buffer";
break;
case __DRI_BUFFER_STENCIL:
rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
region_name = "dri2 stencil buffer";
break;
case __DRI_BUFFER_ACCUM:
default:
fprintf(stderr,
"unhandled buffer attach event, attacment type %d\n",
buffers[i].attachment);
return;
}
if (rb == NULL)
continue;
if (rb->region && rb->region->name == buffers[i].name)
continue;
if (INTEL_DEBUG & DEBUG_DRI)
fprintf(stderr,
"attaching buffer %d, at %d, cpp %d, pitch %d\n",
buffers[i].name, buffers[i].attachment,
buffers[i].cpp, buffers[i].pitch);
if (buffers[i].attachment == __DRI_BUFFER_STENCIL && depth_region) {
if (INTEL_DEBUG & DEBUG_DRI)
fprintf(stderr, "(reusing depth buffer as stencil)\n");
intel_region_reference(®ion, depth_region);
}
else
region = intel_region_alloc_for_handle(intel, buffers[i].cpp,
drawable->w,
drawable->h,
buffers[i].pitch / buffers[i].cpp,
buffers[i].name,
region_name);
if (buffers[i].attachment == __DRI_BUFFER_DEPTH)
depth_region = region;
intel_renderbuffer_set_region(intel, rb, region);
intel_region_release(®ion);
if (buffers[i].attachment == __DRI_BUFFER_DEPTH_STENCIL) {
rb = intel_get_renderbuffer(fb, BUFFER_STENCIL);
if (rb != NULL) {
struct intel_region *stencil_region = NULL;
if (rb->region && rb->region->name == buffers[i].name)
continue;
intel_region_reference(&stencil_region, region);
intel_renderbuffer_set_region(intel, rb, stencil_region);
intel_region_release(&stencil_region);
}
}
}
driUpdateFramebufferSize(&intel->ctx, drawable);
}
/**
* \brief Assign a DRI buffer's DRM region to a renderbuffer.
*
* This is called from intel_update_renderbuffers().
*
* \par Note:
* DRI buffers whose attachment point is DRI2BufferStencil or
* DRI2BufferDepthStencil are handled as special cases.
*
* \param buffer_name is a human readable name, such as "dri2 front buffer",
* that is passed to intel_region_alloc_for_handle().
*
* \see intel_update_renderbuffers()
* \see intel_region_alloc_for_handle()
*/
static void
intel_process_dri2_buffer(struct brw_context *brw,
__DRIdrawable *drawable,
__DRIbuffer *buffer,
struct intel_renderbuffer *rb,
const char *buffer_name)
{
struct intel_region *region = NULL;
struct gl_framebuffer *fb = drawable->driverPrivate;
if (!rb)
return;
unsigned num_samples = rb->Base.Base.NumSamples;
/* We try to avoid closing and reopening the same BO name, because the first
* use of a mapping of the buffer involves a bunch of page faulting which is
* moderately expensive.
*/
if (num_samples == 0) {
if (rb->mt &&
rb->mt->region &&
rb->mt->region->name == buffer->name)
return;
} else {
if (rb->singlesample_mt &&
rb->singlesample_mt->region &&
rb->singlesample_mt->region->name == buffer->name)
return;
}
if (unlikely(INTEL_DEBUG & DEBUG_DRI)) {
fprintf(stderr,
"attaching buffer %d, at %d, cpp %d, pitch %d\n",
buffer->name, buffer->attachment,
buffer->cpp, buffer->pitch);
}
intel_miptree_release(&rb->mt);
region = intel_region_alloc_for_handle(brw->intelScreen,
buffer->cpp,
drawable->w,
drawable->h,
buffer->pitch,
buffer->name,
buffer_name);
if (!region) {
fprintf(stderr,
"Failed to make region for returned DRI2 buffer "
"(%dx%d, named %d).\n"
"This is likely a bug in the X Server that will lead to a "
"crash soon.\n",
drawable->w, drawable->h, buffer->name);
return;
}
intel_update_winsys_renderbuffer_miptree(brw, rb, region);
if (brw_is_front_buffer_drawing(fb) &&
(buffer->attachment == __DRI_BUFFER_FRONT_LEFT ||
buffer->attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) &&
rb->Base.Base.NumSamples > 1) {
intel_renderbuffer_upsample(brw, rb);
}
assert(rb->mt);
intel_region_release(®ion);
}