/**
* Reference a framebuffer.
*/
static void
st_framebuffer_reference(struct st_framebuffer **ptr,
struct st_framebuffer *stfb)
{
struct gl_framebuffer *fb = &stfb->Base;
_mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb);
}
static void
intelDestroyBuffer(__DRIdrawable * driDrawPriv)
{
struct gl_framebuffer *fb = driDrawPriv->driverPrivate;
_mesa_reference_framebuffer(&fb, NULL);
}
/**
* Remove buffer from linked list, delete if no longer referenced.
*/
static void
xmesa_free_buffer(XMesaBuffer buffer)
{
XMesaBuffer prev = NULL, b;
for (b = XMesaBufferList; b; b = b->Next) {
if (b == buffer) {
struct gl_framebuffer *fb = &buffer->mesa_buffer;
/* unlink buffer from list */
if (prev)
prev->Next = buffer->Next;
else
XMesaBufferList = buffer->Next;
/* mark as delete pending */
fb->DeletePending = GL_TRUE;
/* Since the X window for the XMesaBuffer is going away, we don't
* want to dereference this pointer in the future.
*/
b->frontxrb->drawable = 0;
/* Unreference. If count = zero we'll really delete the buffer */
_mesa_reference_framebuffer(&fb, NULL);
return;
}
/* continue search */
prev = b;
}
/* buffer not found in XMesaBufferList */
_mesa_problem(NULL,"xmesa_free_buffer() - buffer not found\n");
}
void
radeonDestroyBuffer(__DRIdrawable *driDrawPriv)
{
struct radeon_framebuffer *rfb;
if (!driDrawPriv)
return;
rfb = (void*)driDrawPriv->driverPrivate;
if (!rfb)
return;
radeon_cleanup_renderbuffers(rfb);
_mesa_reference_framebuffer((struct gl_framebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
}
void
_mesa_meta_glsl_generate_mipmap_cleanup(struct gl_context *ctx,
struct gen_mipmap_state *mipmap)
{
if (mipmap->VAO == 0)
return;
_mesa_DeleteVertexArrays(1, &mipmap->VAO);
mipmap->VAO = 0;
_mesa_reference_buffer_object(ctx, &mipmap->buf_obj, NULL);
_mesa_reference_sampler_object(ctx, &mipmap->samp_obj, NULL);
_mesa_reference_framebuffer(&mipmap->fb, NULL);
_mesa_meta_blit_shader_table_cleanup(ctx, &mipmap->shaders);
}
void
glFBDevDestroyBuffer( GLFBDevBufferPtr buffer )
{
if (buffer) {
/* check if destroying the current buffer */
GLFBDevBufferPtr curDraw = glFBDevGetCurrentDrawBuffer();
GLFBDevBufferPtr curRead = glFBDevGetCurrentReadBuffer();
if (buffer == curDraw || buffer == curRead) {
glFBDevMakeCurrent( NULL, NULL, NULL);
}
{
struct gl_framebuffer *fb = &buffer->glframebuffer;
_mesa_reference_framebuffer(&fb, NULL);
}
}
}
static void
dri_destroy_buffer(__DRIdrawable * dPriv)
{
TRACE;
if (dPriv) {
struct dri_drawable *drawable = dri_drawable(dPriv);
struct gl_framebuffer *fb;
free(drawable->row);
fb = &drawable->Base;
fb->DeletePending = GL_TRUE;
_mesa_reference_framebuffer(&fb, NULL);
}
}
/**
* Destroy an Off-Screen Mesa rendering context.
*
* \param osmesa the context to destroy
*/
GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext osmesa )
{
if (osmesa) {
if (osmesa->srb)
_mesa_reference_renderbuffer((struct gl_renderbuffer **) &osmesa->srb, NULL);
_mesa_meta_free( &osmesa->mesa );
_swsetup_DestroyContext( &osmesa->mesa );
_tnl_DestroyContext( &osmesa->mesa );
_vbo_DestroyContext( &osmesa->mesa );
_swrast_DestroyContext( &osmesa->mesa );
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_reference_framebuffer( &osmesa->gl_buffer, NULL );
_mesa_free_context_data( &osmesa->mesa );
free( osmesa );
}
}
/**
* Free the data associated with the given context.
*
* But doesn't free the GLcontext struct itself.
*
* \sa _mesa_initialize_context() and init_attrib_groups().
*/
void
_mesa_free_context_data( GLcontext *ctx )
{
GLint RefCount;
if (!_mesa_get_current_context()){
/* No current context, but we may need one in order to delete
* texture objs, etc. So temporarily bind the context now.
*/
_mesa_make_current(ctx, NULL, NULL);
}
/* unreference WinSysDraw/Read buffers */
_mesa_reference_framebuffer(&ctx->WinSysDrawBuffer, NULL);
_mesa_reference_framebuffer(&ctx->WinSysReadBuffer, NULL);
_mesa_reference_framebuffer(&ctx->DrawBuffer, NULL);
_mesa_reference_framebuffer(&ctx->ReadBuffer, NULL);
_mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL);
_mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
_mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL);
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL);
_mesa_free_attrib_data(ctx);
_mesa_free_lighting_data( ctx );
_mesa_free_eval_data( ctx );
_mesa_free_texture_data( ctx );
_mesa_free_matrix_data( ctx );
_mesa_free_viewport_data( ctx );
_mesa_free_colortables_data( ctx );
_mesa_free_program_data(ctx);
_mesa_free_shader_state(ctx);
_mesa_free_queryobj_data(ctx);
#if FEATURE_ARB_sync
_mesa_free_sync_data(ctx);
#endif
_mesa_free_varray_data(ctx);
_mesa_delete_array_object(ctx, ctx->Array.DefaultArrayObj);
#if FEATURE_ARB_pixel_buffer_object
_mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL);
#endif
#if FEATURE_ARB_vertex_buffer_object
_mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj, NULL);
_mesa_reference_buffer_object(ctx, &ctx->Array.ElementArrayBufferObj, NULL);
#endif
/* free dispatch tables */
_mesa_free(ctx->Exec);
_mesa_free(ctx->Save);
/* Shared context state (display lists, textures, etc) */
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
RefCount = --ctx->Shared->RefCount;
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
assert(RefCount >= 0);
if (RefCount == 0) {
/* free shared state */
_mesa_free_shared_state( ctx, ctx->Shared );
}
/* needs to be after freeing shared state */
_mesa_free_display_list_data(ctx);
if (ctx->Extensions.String)
_mesa_free((void *) ctx->Extensions.String);
/* unbind the context if it's currently bound */
if (ctx == _mesa_get_current_context()) {
_mesa_make_current(NULL, NULL, NULL);
}
}
/**
* Bind the given context to the given drawBuffer and readBuffer and
* make it the current context for the calling thread.
* We'll render into the drawBuffer and read pixels from the
* readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc).
*
* We check that the context's and framebuffer's visuals are compatible
* and return immediately if they're not.
*
* \param newCtx the new GL context. If NULL then there will be no current GL
* context.
* \param drawBuffer the drawing framebuffer
* \param readBuffer the reading framebuffer
*/
GLboolean
_mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
GLframebuffer *readBuffer )
{
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(newCtx, "_mesa_make_current()\n");
/* Check that the context's and framebuffer's visuals are compatible.
*/
if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) {
if (!check_compatible(newCtx, drawBuffer)) {
_mesa_warning(newCtx,
"MakeCurrent: incompatible visuals for context and drawbuffer");
return GL_FALSE;
}
}
if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) {
if (!check_compatible(newCtx, readBuffer)) {
_mesa_warning(newCtx,
"MakeCurrent: incompatible visuals for context and readbuffer");
return GL_FALSE;
}
}
/* We used to call _glapi_check_multithread() here. Now do it in drivers */
_glapi_set_context((void *) newCtx);
ASSERT(_mesa_get_current_context() == newCtx);
if (!newCtx) {
_glapi_set_dispatch(NULL); /* none current */
}
else {
_glapi_set_dispatch(newCtx->CurrentDispatch);
if (drawBuffer && readBuffer) {
/* TODO: check if newCtx and buffer's visual match??? */
ASSERT(drawBuffer->Name == 0);
ASSERT(readBuffer->Name == 0);
_mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer);
_mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer);
/*
* Only set the context's Draw/ReadBuffer fields if they're NULL
* or not bound to a user-created FBO.
*/
if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
/* KW: merge conflict here, revisit.
*/
/* fix up the fb fields - these will end up wrong otherwise
* if the DRIdrawable changes, and everything relies on them.
* This is a bit messy (same as needed in _mesa_BindFramebufferEXT)
*/
unsigned int i;
GLenum buffers[MAX_DRAW_BUFFERS];
_mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {
buffers[i] = newCtx->Color.DrawBuffer[i];
}
_mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, buffers, NULL);
}
if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
_mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
}
/* XXX only set this flag if we're really changing the draw/read
* framebuffer bindings.
*/
newCtx->NewState |= _NEW_BUFFERS;
#if 1
/* We want to get rid of these lines: */
#if _HAVE_FULL_GL
if (!drawBuffer->Initialized) {
initialize_framebuffer_size(newCtx, drawBuffer);
}
if (readBuffer != drawBuffer && !readBuffer->Initialized) {
initialize_framebuffer_size(newCtx, readBuffer);
}
_mesa_resizebuffers(newCtx);
#endif
#else
/* We want the drawBuffer and readBuffer to be initialized by
* the driver.
* This generally means the Width and Height match the actual
* window size and the renderbuffers (both hardware and software
* based) are allocated to match. The later can generally be
* done with a call to _mesa_resize_framebuffer().
*
* It's theoretically possible for a buffer to have zero width
* or height, but for now, assert check that the driver did what's
* expected of it.
*/
ASSERT(drawBuffer->Width > 0);
ASSERT(drawBuffer->Height > 0);
#endif
if (drawBuffer) {
_mesa_check_init_viewport(newCtx,
drawBuffer->Width, drawBuffer->Height);
}
}
if (newCtx->FirstTimeCurrent) {
check_context_limits(newCtx);
/* We can use this to help debug user's problems. Tell them to set
* the MESA_INFO env variable before running their app. Then the
* first time each context is made current we'll print some useful
* information.
*/
if (_mesa_getenv("MESA_INFO")) {
_mesa_print_info();
}
newCtx->FirstTimeCurrent = GL_FALSE;
}
}
return GL_TRUE;
}
static void
nouveau_destroy_buffer(__DRIdrawable *drawable)
{
_mesa_reference_framebuffer(
(struct gl_framebuffer **)&drawable->driverPrivate, NULL);
}
/** A partial implementation of glCopyImageSubData
*
* This is a partial implementation of glCopyImageSubData that works only
* if both textures are uncompressed and the destination texture is
* renderable. It uses a slight abuse of a texture view (see make_view) to
* turn the source texture into the destination texture type and then uses
* _mesa_meta_BlitFramebuffers to do the copy.
*/
bool
_mesa_meta_CopyImageSubData_uncompressed(struct gl_context *ctx,
struct gl_texture_image *src_tex_image,
struct gl_renderbuffer *src_renderbuffer,
int src_x, int src_y, int src_z,
struct gl_texture_image *dst_tex_image,
struct gl_renderbuffer *dst_renderbuffer,
int dst_x, int dst_y, int dst_z,
int src_width, int src_height)
{
mesa_format src_format, dst_format;
GLint src_internal_format, dst_internal_format;
GLuint src_view_texture = 0;
struct gl_texture_image *src_view_tex_image;
struct gl_framebuffer *readFb;
struct gl_framebuffer *drawFb = NULL;
bool success = false;
GLbitfield mask;
GLenum status, attachment;
if (src_renderbuffer) {
src_format = src_renderbuffer->Format;
src_internal_format = src_renderbuffer->InternalFormat;
} else {
assert(src_tex_image);
src_format = src_tex_image->TexFormat;
src_internal_format = src_tex_image->InternalFormat;
}
if (dst_renderbuffer) {
dst_format = dst_renderbuffer->Format;
dst_internal_format = dst_renderbuffer->InternalFormat;
} else {
assert(dst_tex_image);
dst_format = dst_tex_image->TexFormat;
dst_internal_format = dst_tex_image->InternalFormat;
}
if (_mesa_is_format_compressed(src_format))
return false;
if (_mesa_is_format_compressed(dst_format))
return false;
if (src_internal_format == dst_internal_format) {
src_view_tex_image = src_tex_image;
} else {
if (src_renderbuffer) {
assert(src_tex_image == NULL);
src_tex_image = wrap_renderbuffer(ctx, src_renderbuffer);
}
if (!make_view(ctx, src_tex_image, &src_view_tex_image, &src_view_texture,
dst_internal_format))
goto cleanup;
}
/* We really only need to stash the bound framebuffers and scissor. */
_mesa_meta_begin(ctx, MESA_META_SCISSOR);
readFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (readFb == NULL)
goto meta_end;
drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (drawFb == NULL)
goto meta_end;
_mesa_bind_framebuffers(ctx, drawFb, readFb);
switch (_mesa_get_format_base_format(src_format)) {
case GL_DEPTH_COMPONENT:
attachment = GL_DEPTH_ATTACHMENT;
mask = GL_DEPTH_BUFFER_BIT;
break;
case GL_DEPTH_STENCIL:
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
mask = GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
break;
case GL_STENCIL_INDEX:
attachment = GL_STENCIL_ATTACHMENT;
mask = GL_STENCIL_BUFFER_BIT;
break;
default:
attachment = GL_COLOR_ATTACHMENT0;
mask = GL_COLOR_BUFFER_BIT;
_mesa_DrawBuffer(GL_COLOR_ATTACHMENT0);
_mesa_ReadBuffer(GL_COLOR_ATTACHMENT0);
}
if (src_view_tex_image) {
/* Prefer the tex image because, even if we have a renderbuffer, we may
* have had to wrap it in a texture view.
*/
_mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer, attachment,
src_view_tex_image, src_z);
} else {
_mesa_framebuffer_renderbuffer(ctx, ctx->ReadBuffer, attachment,
src_renderbuffer);
}
status = _mesa_check_framebuffer_status(ctx, ctx->ReadBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto meta_end;
if (dst_renderbuffer) {
_mesa_framebuffer_renderbuffer(ctx, ctx->DrawBuffer, attachment,
dst_renderbuffer);
} else {
_mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer, attachment,
dst_tex_image, dst_z);
}
status = _mesa_check_framebuffer_status(ctx, ctx->DrawBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto meta_end;
/* Explicitly disable sRGB encoding */
ctx->DrawBuffer->Visual.sRGBCapable = false;
/* Since we've bound a new draw framebuffer, we need to update its
* derived state -- _Xmin, etc -- for BlitFramebuffer's clipping to
* be correct.
*/
_mesa_update_state(ctx);
/* We skip the core BlitFramebuffer checks for format consistency.
* We have already created views to ensure that the texture formats
* match.
*/
ctx->Driver.BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
src_x, src_y,
src_x + src_width, src_y + src_height,
dst_x, dst_y,
dst_x + src_width, dst_y + src_height,
mask, GL_NEAREST);
success = true;
meta_end:
_mesa_reference_framebuffer(&readFb, NULL);
_mesa_reference_framebuffer(&drawFb, NULL);
_mesa_meta_end(ctx);
cleanup:
_mesa_DeleteTextures(1, &src_view_texture);
/* If we got a renderbuffer source, delete the temporary texture */
if (src_renderbuffer && src_tex_image)
ctx->Driver.DeleteTexture(ctx, src_tex_image->TexObject);
return success;
}
void GLAPIENTRY
_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
{
struct gl_framebuffer *newFb, *newFbread;
GLboolean bindReadBuf, bindDrawBuf;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (!ctx->Extensions.EXT_framebuffer_object) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindFramebufferEXT(unsupported)");
return;
}
switch (target) {
#if FEATURE_EXT_framebuffer_blit
case GL_DRAW_FRAMEBUFFER_EXT:
if (!ctx->Extensions.EXT_framebuffer_blit) {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
return;
}
bindDrawBuf = GL_TRUE;
bindReadBuf = GL_FALSE;
break;
case GL_READ_FRAMEBUFFER_EXT:
if (!ctx->Extensions.EXT_framebuffer_blit) {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
return;
}
bindDrawBuf = GL_FALSE;
bindReadBuf = GL_TRUE;
break;
#endif
case GL_FRAMEBUFFER_EXT:
bindDrawBuf = GL_TRUE;
bindReadBuf = GL_TRUE;
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
return;
}
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
if (ctx->Driver.Flush) {
ctx->Driver.Flush(ctx);
}
if (framebuffer) {
/* Binding a user-created framebuffer object */
newFb = _mesa_lookup_framebuffer(ctx, framebuffer);
if (newFb == &DummyFramebuffer) {
/* ID was reserved, but no real framebuffer object made yet */
newFb = NULL;
}
if (!newFb) {
/* create new framebuffer object */
newFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
if (!newFb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
return;
}
_mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newFb);
}
newFbread = newFb;
}
else {
/* Binding the window system framebuffer (which was originally set
* with MakeCurrent).
*/
newFb = ctx->WinSysDrawBuffer;
newFbread = ctx->WinSysReadBuffer;
}
ASSERT(newFb);
ASSERT(newFb != &DummyFramebuffer);
/*
* XXX check if re-binding same buffer and skip some of this code.
*/
if (bindReadBuf) {
_mesa_reference_framebuffer(&ctx->ReadBuffer, newFbread);
}
if (bindDrawBuf) {
/* check if old FB had any texture attachments */
check_end_texture_render(ctx, ctx->DrawBuffer);
/* check if time to delete this framebuffer */
_mesa_reference_framebuffer(&ctx->DrawBuffer, newFb);
if (newFb->Name != 0) {
/* check if newly bound framebuffer has any texture attachments */
check_begin_texture_render(ctx, newFb);
}
}
if (ctx->Driver.BindFramebuffer) {
ctx->Driver.BindFramebuffer(ctx, target, newFb, newFbread);
}
}
bool
_mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *tex_image,
int xoffset, int yoffset, int zoffset,
int width, int height, int depth,
GLenum format, GLenum type, const void *pixels,
const struct gl_pixelstore_attrib *packing)
{
struct gl_buffer_object *pbo = NULL;
GLuint pbo_tex = 0;
struct gl_framebuffer *readFb;
struct gl_framebuffer *drawFb;
int image_height;
struct gl_texture_image *pbo_tex_image;
struct gl_renderbuffer *rb = NULL;
GLenum dstBaseFormat = _mesa_unpack_format_to_base_format(format);
GLenum status, src_base_format;
bool success = false, clear_channels_to_zero = false;
float save_clear_color[4];
int z;
if (!_mesa_is_bufferobj(packing->BufferObj))
return false;
if (format == GL_DEPTH_COMPONENT ||
format == GL_DEPTH_STENCIL ||
format == GL_STENCIL_INDEX ||
format == GL_COLOR_INDEX)
return false;
/* Don't use meta path for readpixels in below conditions. */
if (!tex_image) {
rb = ctx->ReadBuffer->_ColorReadBuffer;
/* _mesa_get_readpixels_transfer_ops() includes the cases of read
* color clamping along with the ctx->_ImageTransferState.
*/
if (_mesa_get_readpixels_transfer_ops(ctx, rb->Format, format,
type, GL_FALSE))
return false;
if (_mesa_need_rgb_to_luminance_conversion(rb->_BaseFormat,
dstBaseFormat))
return false;
/* This function rely on BlitFramebuffer to fill in the pixel data for
* ReadPixels. But, BlitFrameBuffer doesn't support signed to unsigned
* or unsigned to signed integer conversions. OpenGL spec expects an
* invalid operation in that case.
*/
if (need_signed_unsigned_int_conversion(rb->Format, format, type))
return false;
} else {
if (need_signed_unsigned_int_conversion(tex_image->TexFormat, format, type))
return false;
}
/* For arrays, use a tall (height * depth) 2D texture but taking into
* account the inter-image padding specified with the image height packing
* property.
*/
image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
_mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
MESA_META_PIXEL_STORE));
pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
dims, width, height, depth,
format, type, pixels, packing,
&pbo, &pbo_tex);
if (!pbo_tex_image) {
_mesa_meta_end(ctx);
return false;
}
/* GL_CLAMP_FRAGMENT_COLOR doesn't affect ReadPixels and GettexImage */
if (ctx->Extensions.ARB_color_buffer_float)
_mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
readFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (readFb == NULL)
goto fail;
drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (drawFb == NULL)
goto fail;
if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
assert(depth == 1);
assert(zoffset == 0);
depth = height;
height = 1;
image_height = 1;
zoffset = yoffset;
yoffset = 0;
}
/* If we were given a texture, bind it to the read framebuffer. If not,
* we're doing a ReadPixels and we should just use whatever framebuffer
* the client has bound.
*/
_mesa_bind_framebuffers(ctx, drawFb, tex_image ? readFb : ctx->ReadBuffer);
if (tex_image) {
_mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
GL_COLOR_ATTACHMENT0,
tex_image, zoffset);
/* If this passes on the first layer it should pass on the others */
status = _mesa_check_framebuffer_status(ctx, ctx->ReadBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto fail;
} else {
assert(depth == 1);
}
_mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
GL_COLOR_ATTACHMENT0,
pbo_tex_image, 0);
/* If this passes on the first layer it should pass on the others */
status = _mesa_check_framebuffer_status(ctx, ctx->DrawBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto fail;
/* Explicitly disable sRGB encoding */
ctx->DrawBuffer->Visual.sRGBCapable = false;
_mesa_update_state(ctx);
if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
xoffset, yoffset,
xoffset + width, yoffset + height,
0, 0, width, height,
GL_COLOR_BUFFER_BIT, GL_NEAREST))
goto fail;
src_base_format = tex_image ?
tex_image->_BaseFormat :
ctx->ReadBuffer->_ColorReadBuffer->_BaseFormat;
/* Depending on the base formats involved we might need to rebase some
* values. For example if we download from a Luminance format to RGBA
* format, we want G=0 and B=0.
*/
clear_channels_to_zero =
_mesa_need_luminance_to_rgb_conversion(src_base_format,
pbo_tex_image->_BaseFormat);
if (clear_channels_to_zero) {
memcpy(save_clear_color, ctx->Color.ClearColor.f, 4 * sizeof(float));
/* Clear the Green, Blue channels. */
_mesa_ColorMask(GL_FALSE, GL_TRUE, GL_TRUE,
src_base_format != GL_LUMINANCE_ALPHA);
_mesa_ClearColor(0.0, 0.0, 0.0, 1.0);
_mesa_Clear(GL_COLOR_BUFFER_BIT);
}
for (z = 1; z < depth; z++) {
_mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
GL_COLOR_ATTACHMENT0,
tex_image, zoffset + z);
_mesa_update_state(ctx);
_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
xoffset, yoffset,
xoffset + width, yoffset + height,
0, z * image_height,
width, z * image_height + height,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
if (clear_channels_to_zero)
_mesa_Clear(GL_COLOR_BUFFER_BIT);
}
/* Unmask the color channels and restore the saved clear color values. */
if (clear_channels_to_zero) {
_mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
_mesa_ClearColor(save_clear_color[0], save_clear_color[1],
save_clear_color[2], save_clear_color[3]);
}
success = true;
fail:
_mesa_reference_framebuffer(&drawFb, NULL);
_mesa_reference_framebuffer(&readFb, NULL);
_mesa_DeleteTextures(1, &pbo_tex);
_mesa_reference_buffer_object(ctx, &pbo, NULL);
_mesa_meta_end(ctx);
return success;
}
bool
_mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *tex_image,
int xoffset, int yoffset, int zoffset,
int width, int height, int depth,
GLenum format, GLenum type, const void *pixels,
bool create_pbo,
const struct gl_pixelstore_attrib *packing)
{
struct gl_buffer_object *pbo = NULL;
GLuint pbo_tex = 0;
struct gl_framebuffer *readFb = NULL;
struct gl_framebuffer *drawFb = NULL;
int image_height;
struct gl_texture_image *pbo_tex_image;
GLenum status;
bool success = false;
int z;
if (!_mesa_is_bufferobj(packing->BufferObj) &&
(!create_pbo || pixels == NULL))
return false;
if (format == GL_DEPTH_COMPONENT ||
format == GL_DEPTH_STENCIL ||
format == GL_STENCIL_INDEX ||
format == GL_COLOR_INDEX)
return false;
if (ctx->_ImageTransferState)
return false;
/* This function rely on BlitFramebuffer to fill in the pixel data for
* glTex[Sub]Image*D. But, BlitFrameBuffer doesn't support signed to
* unsigned or unsigned to signed integer conversions.
*/
if (need_signed_unsigned_int_conversion(tex_image->TexFormat, format, type))
return false;
/* For arrays, use a tall (height * depth) 2D texture but taking into
* account the inter-image padding specified with the image height packing
* property.
*/
image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
_mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
MESA_META_PIXEL_STORE));
pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
GL_PIXEL_UNPACK_BUFFER,
dims, width, height, depth,
format, type, pixels, packing,
&pbo, &pbo_tex);
if (!pbo_tex_image) {
_mesa_meta_end(ctx);
return false;
}
readFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (readFb == NULL)
goto fail;
drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (drawFb == NULL)
goto fail;
_mesa_bind_framebuffers(ctx, drawFb, tex_image ? readFb : ctx->ReadBuffer);
if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
assert(depth == 1);
assert(zoffset == 0);
depth = height;
height = 1;
image_height = 1;
zoffset = yoffset;
yoffset = 0;
}
_mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
GL_COLOR_ATTACHMENT0,
pbo_tex_image, 0);
/* If this passes on the first layer it should pass on the others */
status = _mesa_check_framebuffer_status(ctx, ctx->ReadBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto fail;
_mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
GL_COLOR_ATTACHMENT0,
tex_image, zoffset);
/* If this passes on the first layer it should pass on the others */
status = _mesa_check_framebuffer_status(ctx, ctx->DrawBuffer);
if (status != GL_FRAMEBUFFER_COMPLETE)
goto fail;
/* Explicitly disable sRGB encoding */
ctx->DrawBuffer->Visual.sRGBCapable = false;
_mesa_update_state(ctx);
if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
0, 0, width, height,
xoffset, yoffset,
xoffset + width, yoffset + height,
GL_COLOR_BUFFER_BIT, GL_NEAREST))
goto fail;
for (z = 1; z < depth; z++) {
_mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
GL_COLOR_ATTACHMENT0,
tex_image, zoffset + z);
_mesa_update_state(ctx);
_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
0, z * image_height,
width, z * image_height + height,
xoffset, yoffset,
xoffset + width, yoffset + height,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
}
success = true;
fail:
_mesa_reference_framebuffer(&readFb, NULL);
_mesa_reference_framebuffer(&drawFb, NULL);
_mesa_DeleteTextures(1, &pbo_tex);
_mesa_reference_buffer_object(ctx, &pbo, NULL);
_mesa_meta_end(ctx);
return success;
}
void
brw_meta_resolve_color(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
struct gl_context *ctx = &brw->ctx;
struct gl_framebuffer *drawFb;
struct gl_renderbuffer *rb;
struct rect rect;
brw_emit_mi_flush(brw);
drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
if (drawFb == NULL) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "in %s", __func__);
return;
}
_mesa_meta_begin(ctx, MESA_META_ALL);
rb = brw_get_rb_for_slice(brw, mt, 0, 0, false);
_mesa_bind_framebuffers(ctx, drawFb, ctx->ReadBuffer);
_mesa_framebuffer_renderbuffer(ctx, ctx->DrawBuffer, GL_COLOR_ATTACHMENT0,
rb);
_mesa_DrawBuffer(GL_COLOR_ATTACHMENT0);
brw_fast_clear_init(brw);
use_rectlist(brw, true);
brw_bind_rep_write_shader(brw, (float *) fast_clear_color);
/* SKL+ also has a resolve mode for compressed render targets and thus more
* bits to let us select the type of resolve. For fast clear resolves, it
* turns out we can use the same value as pre-SKL though.
*/
if (intel_miptree_is_lossless_compressed(brw, mt))
set_fast_clear_op(brw, GEN9_PS_RENDER_TARGET_RESOLVE_FULL);
else
set_fast_clear_op(brw, GEN7_PS_RENDER_TARGET_RESOLVE_ENABLE);
mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_RESOLVED;
get_resolve_rect(brw, mt, &rect);
brw_draw_rectlist(brw, &rect, 1);
set_fast_clear_op(brw, 0);
use_rectlist(brw, false);
_mesa_reference_renderbuffer(&rb, NULL);
_mesa_reference_framebuffer(&drawFb, NULL);
_mesa_meta_end(ctx);
/* We're typically called from intel_update_state() and we're supposed to
* return with the state all updated to what it was before
* brw_meta_resolve_color() was called. The meta rendering will have
* messed up the state and we need to call _mesa_update_state() again to
* get back to where we were supposed to be when resolve was called.
*/
if (ctx->NewState)
_mesa_update_state(ctx);
}
