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android / platform / external / mesa3d / 4f8fc0f0665d66bf9320023240ff4b47300dd91d / . / src / mesa / state_tracker / st_manager.c
blob: ab2bfbc1f3959395e3b57e9a5ad52491878e0057 [file] [log] [blame]
/*
* Mesa 3-D graphics library
*
* 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 "main/mtypes.h"
#include "main/extensions.h"
#include "main/context.h"
#include "main/debug_output.h"
#include "main/glthread.h"
#include "main/texobj.h"
#include "main/teximage.h"
#include "main/texstate.h"
#include "main/errors.h"
#include "main/framebuffer.h"
#include "main/fbobject.h"
#include "main/renderbuffer.h"
#include "main/version.h"
#include "util/hash_table.h"
#include "st_texture.h"
#include "st_context.h"
#include "st_debug.h"
#include "st_extensions.h"
#include "st_format.h"
#include "st_cb_bitmap.h"
#include "st_cb_fbo.h"
#include "st_cb_flush.h"
#include "st_manager.h"
#include "st_sampler_view.h"
#include "state_tracker/st_gl_api.h"
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/format/u_format.h"
#include "util/u_helpers.h"
#include "util/u_pointer.h"
#include "util/u_inlines.h"
#include "util/u_atomic.h"
#include "util/u_surface.h"
#include "util/list.h"
#include "util/u_memory.h"
struct hash_table;
struct st_manager_private
{
struct hash_table *stfbi_ht; /* framebuffer iface objects hash table */
simple_mtx_t st_mutex;
};
/**
* Map an attachment to a buffer index.
*/
static inline gl_buffer_index
attachment_to_buffer_index(enum st_attachment_type statt)
{
gl_buffer_index index;
switch (statt) {
case ST_ATTACHMENT_FRONT_LEFT:
index = BUFFER_FRONT_LEFT;
break;
case ST_ATTACHMENT_BACK_LEFT:
index = BUFFER_BACK_LEFT;
break;
case ST_ATTACHMENT_FRONT_RIGHT:
index = BUFFER_FRONT_RIGHT;
break;
case ST_ATTACHMENT_BACK_RIGHT:
index = BUFFER_BACK_RIGHT;
break;
case ST_ATTACHMENT_DEPTH_STENCIL:
index = BUFFER_DEPTH;
break;
case ST_ATTACHMENT_ACCUM:
index = BUFFER_ACCUM;
break;
case ST_ATTACHMENT_SAMPLE:
default:
index = BUFFER_COUNT;
break;
}
return index;
}
/**
* Map a buffer index to an attachment.
*/
static inline enum st_attachment_type
buffer_index_to_attachment(gl_buffer_index index)
{
enum st_attachment_type statt;
switch (index) {
case BUFFER_FRONT_LEFT:
statt = ST_ATTACHMENT_FRONT_LEFT;
break;
case BUFFER_BACK_LEFT:
statt = ST_ATTACHMENT_BACK_LEFT;
break;
case BUFFER_FRONT_RIGHT:
statt = ST_ATTACHMENT_FRONT_RIGHT;
break;
case BUFFER_BACK_RIGHT:
statt = ST_ATTACHMENT_BACK_RIGHT;
break;
case BUFFER_DEPTH:
statt = ST_ATTACHMENT_DEPTH_STENCIL;
break;
case BUFFER_ACCUM:
statt = ST_ATTACHMENT_ACCUM;
break;
default:
statt = ST_ATTACHMENT_INVALID;
break;
}
return statt;
}
/**
* Make sure a context picks up the latest cached state of the
* drawables it binds to.
*/
static void
st_context_validate(struct st_context *st,
struct st_framebuffer *stdraw,
struct st_framebuffer *stread)
{
if (stdraw && stdraw->stamp != st->draw_stamp) {
st->dirty |= ST_NEW_FRAMEBUFFER;
_mesa_resize_framebuffer(st->ctx, &stdraw->Base,
stdraw->Base.Width,
stdraw->Base.Height);
st->draw_stamp = stdraw->stamp;
}
if (stread && stread->stamp != st->read_stamp) {
if (stread != stdraw) {
st->dirty |= ST_NEW_FRAMEBUFFER;
_mesa_resize_framebuffer(st->ctx, &stread->Base,
stread->Base.Width,
stread->Base.Height);
}
st->read_stamp = stread->stamp;
}
}
void
st_set_ws_renderbuffer_surface(struct st_renderbuffer *strb,
struct pipe_surface *surf)
{
pipe_surface_reference(&strb->surface_srgb, NULL);
pipe_surface_reference(&strb->surface_linear, NULL);
if (util_format_is_srgb(surf->format))
pipe_surface_reference(&strb->surface_srgb, surf);
else
pipe_surface_reference(&strb->surface_linear, surf);
strb->surface = surf; /* just assign, don't ref */
pipe_resource_reference(&strb->texture, surf->texture);
strb->Base.Width = surf->width;
strb->Base.Height = surf->height;
}
/**
* Validate a framebuffer to make sure up-to-date pipe_textures are used.
* The context is only used for creating pipe surfaces and for calling
* _mesa_resize_framebuffer().
* (That should probably be rethought, since those surfaces become
* drawable state, not context state, and can be freed by another pipe
* context).
*/
static void
st_framebuffer_validate(struct st_framebuffer *stfb,
struct st_context *st)
{
struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
uint width, height;
unsigned i;
bool changed = false;
int32_t new_stamp;
new_stamp = p_atomic_read(&stfb->iface->stamp);
if (stfb->iface_stamp == new_stamp)
return;
memset(textures, 0, stfb->num_statts * sizeof(textures[0]));
/* validate the fb */
do {
if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts,
stfb->num_statts, textures))
return;
stfb->iface_stamp = new_stamp;
new_stamp = p_atomic_read(&stfb->iface->stamp);
} while(stfb->iface_stamp != new_stamp);
width = stfb->Base.Width;
height = stfb->Base.Height;
for (i = 0; i < stfb->num_statts; i++) {
struct st_renderbuffer *strb;
struct pipe_surface *ps, surf_tmpl;
gl_buffer_index idx;
if (!textures[i])
continue;
idx = attachment_to_buffer_index(stfb->statts[i]);
if (idx >= BUFFER_COUNT) {
pipe_resource_reference(&textures[i], NULL);
continue;
}
strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);
assert(strb);
if (strb->texture == textures[i]) {
pipe_resource_reference(&textures[i], NULL);
continue;
}
u_surface_default_template(&surf_tmpl, textures[i]);
ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);
if (ps) {
st_set_ws_renderbuffer_surface(strb, ps);
pipe_surface_reference(&ps, NULL);
changed = true;
width = strb->Base.Width;
height = strb->Base.Height;
}
pipe_resource_reference(&textures[i], NULL);
}
if (changed) {
++stfb->stamp;
_mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height);
}
}
/**
* Update the attachments to validate by looping the existing renderbuffers.
*/
static void
st_framebuffer_update_attachments(struct st_framebuffer *stfb)
{
gl_buffer_index idx;
stfb->num_statts = 0;
for (idx = 0; idx < BUFFER_COUNT; idx++) {
struct st_renderbuffer *strb;
enum st_attachment_type statt;
strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);
if (!strb || strb->software)
continue;
statt = buffer_index_to_attachment(idx);
if (statt != ST_ATTACHMENT_INVALID &&
st_visual_have_buffers(stfb->iface->visual, 1 << statt))
stfb->statts[stfb->num_statts++] = statt;
}
stfb->stamp++;
}
/**
* Add a renderbuffer to the framebuffer. The framebuffer is one that
* corresponds to a window and is not a user-created FBO.
*/
static bool
st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,
gl_buffer_index idx, bool prefer_srgb)
{
struct gl_renderbuffer *rb;
enum pipe_format format;
bool sw;
assert(_mesa_is_winsys_fbo(&stfb->Base));
/* do not distinguish depth/stencil buffers */
if (idx == BUFFER_STENCIL)
idx = BUFFER_DEPTH;
switch (idx) {
case BUFFER_DEPTH:
format = stfb->iface->visual->depth_stencil_format;
sw = false;
break;
case BUFFER_ACCUM:
format = stfb->iface->visual->accum_format;
sw = true;
break;
default:
format = stfb->iface->visual->color_format;
if (prefer_srgb)
format = util_format_srgb(format);
sw = false;
break;
}
if (format == PIPE_FORMAT_NONE)
return false;
rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw);
if (!rb)
return false;
if (idx != BUFFER_DEPTH) {
_mesa_attach_and_own_rb(&stfb->Base, idx, rb);
return true;
}
bool rb_ownership_taken = false;
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) {
_mesa_attach_and_own_rb(&stfb->Base, BUFFER_DEPTH, rb);
rb_ownership_taken = true;
}
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) {
if (rb_ownership_taken)
_mesa_attach_and_reference_rb(&stfb->Base, BUFFER_STENCIL, rb);
else
_mesa_attach_and_own_rb(&stfb->Base, BUFFER_STENCIL, rb);
}
return true;
}
/**
* Intialize a struct gl_config from a visual.
*/
static void
st_visual_to_context_mode(const struct st_visual *visual,
struct gl_config *mode)
{
memset(mode, 0, sizeof(*mode));
if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK))
mode->doubleBufferMode = GL_TRUE;
if (st_visual_have_buffers(visual,
ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK))
mode->stereoMode = GL_TRUE;
if (visual->color_format != PIPE_FORMAT_NONE) {
mode->redBits =
util_format_get_component_bits(visual->color_format,
UTIL_FORMAT_COLORSPACE_RGB, 0);
mode->greenBits =
util_format_get_component_bits(visual->color_format,
UTIL_FORMAT_COLORSPACE_RGB, 1);
mode->blueBits =
util_format_get_component_bits(visual->color_format,
UTIL_FORMAT_COLORSPACE_RGB, 2);
mode->alphaBits =
util_format_get_component_bits(visual->color_format,
UTIL_FORMAT_COLORSPACE_RGB, 3);
mode->rgbBits = mode->redBits +
mode->greenBits + mode->blueBits + mode->alphaBits;
mode->sRGBCapable = util_format_is_srgb(visual->color_format);
}
if (visual->depth_stencil_format != PIPE_FORMAT_NONE) {
mode->depthBits =
util_format_get_component_bits(visual->depth_stencil_format,
UTIL_FORMAT_COLORSPACE_ZS, 0);
mode->stencilBits =
util_format_get_component_bits(visual->depth_stencil_format,
UTIL_FORMAT_COLORSPACE_ZS, 1);
}
if (visual->accum_format != PIPE_FORMAT_NONE) {
mode->accumRedBits =
util_format_get_component_bits(visual->accum_format,
UTIL_FORMAT_COLORSPACE_RGB, 0);
mode->accumGreenBits =
util_format_get_component_bits(visual->accum_format,
UTIL_FORMAT_COLORSPACE_RGB, 1);
mode->accumBlueBits =
util_format_get_component_bits(visual->accum_format,
UTIL_FORMAT_COLORSPACE_RGB, 2);
mode->accumAlphaBits =
util_format_get_component_bits(visual->accum_format,
UTIL_FORMAT_COLORSPACE_RGB, 3);
}
if (visual->samples > 1) {
mode->sampleBuffers = 1;
mode->samples = visual->samples;
}
}
/**
* Create a framebuffer from a manager interface.
*/
static struct st_framebuffer *
st_framebuffer_create(struct st_context *st,
struct st_framebuffer_iface *stfbi)
{
struct st_framebuffer *stfb;
struct gl_config mode;
gl_buffer_index idx;
bool prefer_srgb = false;
if (!stfbi)
return NULL;
stfb = CALLOC_STRUCT(st_framebuffer);
if (!stfb)
return NULL;
st_visual_to_context_mode(stfbi->visual, &mode);
/*
* For desktop GL, sRGB framebuffer write is controlled by both the
* capability of the framebuffer and GL_FRAMEBUFFER_SRGB. We should
* advertise the capability when the pipe driver (and core Mesa) supports
* it so that applications can enable sRGB write when they want to.
*
* This is not to be confused with GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB. When
* the attribute is GLX_TRUE, it tells the st manager to pick a color
* format such that util_format_srgb(visual->color_format) can be supported
* by the pipe driver. We still need to advertise the capability here.
*
* For GLES, however, sRGB framebuffer write is initially only controlled
* by the capability of the framebuffer, with GL_EXT_sRGB_write_control
* control is given back to the applications, but GL_FRAMEBUFFER_SRGB is
* still enabled by default since this is the behaviour when
* EXT_sRGB_write_control is not available. Since GL_EXT_sRGB_write_control
* brings GLES on par with desktop GLs EXT_framebuffer_sRGB, in mesa this
* is also expressed by using the same extension flag
*/
if (_mesa_has_EXT_framebuffer_sRGB(st->ctx)) {
struct pipe_screen *screen = st->pipe->screen;
const enum pipe_format srgb_format =
util_format_srgb(stfbi->visual->color_format);
if (srgb_format != PIPE_FORMAT_NONE &&
st_pipe_format_to_mesa_format(srgb_format) != MESA_FORMAT_NONE &&
screen->is_format_supported(screen, srgb_format,
PIPE_TEXTURE_2D, stfbi->visual->samples,
stfbi->visual->samples,
(PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_RENDER_TARGET))) {
mode.sRGBCapable = GL_TRUE;
/* Since GL_FRAMEBUFFER_SRGB is enabled by default on GLES we must not
* create renderbuffers with an sRGB format derived from the
* visual->color_format, but we still want sRGB for desktop GL.
*/
prefer_srgb = _mesa_is_desktop_gl(st->ctx);
}
}
_mesa_initialize_window_framebuffer(&stfb->Base, &mode);
stfb->iface = stfbi;
stfb->iface_ID = stfbi->ID;
stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1;
/* add the color buffer */
idx = stfb->Base._ColorDrawBufferIndexes[0];
if (!st_framebuffer_add_renderbuffer(stfb, idx, prefer_srgb)) {
free(stfb);
return NULL;
}
st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH, false);
st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM, false);
stfb->stamp = 0;
st_framebuffer_update_attachments(stfb);
return stfb;
}
/**
* Reference a framebuffer.
*/
void
st_framebuffer_reference(struct st_framebuffer **ptr,
struct st_framebuffer *stfb)
{
struct gl_framebuffer *fb = stfb ? &stfb->Base : NULL;
_mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb);
}
static uint32_t
st_framebuffer_iface_hash(const void *key)
{
return (uintptr_t)key;
}
static bool
st_framebuffer_iface_equal(const void *a, const void *b)
{
return (struct st_framebuffer_iface *)a == (struct st_framebuffer_iface *)b;
}
static bool
st_framebuffer_iface_lookup(struct st_manager *smapi,
const struct st_framebuffer_iface *stfbi)
{
struct st_manager_private *smPriv =
(struct st_manager_private *)smapi->st_manager_private;
struct hash_entry *entry;
assert(smPriv);
assert(smPriv->stfbi_ht);
simple_mtx_lock(&smPriv->st_mutex);
entry = _mesa_hash_table_search(smPriv->stfbi_ht, stfbi);
simple_mtx_unlock(&smPriv->st_mutex);
return entry != NULL;
}
static bool
st_framebuffer_iface_insert(struct st_manager *smapi,
struct st_framebuffer_iface *stfbi)
{
struct st_manager_private *smPriv =
(struct st_manager_private *)smapi->st_manager_private;
struct hash_entry *entry;
assert(smPriv);
assert(smPriv->stfbi_ht);
simple_mtx_lock(&smPriv->st_mutex);
entry = _mesa_hash_table_insert(smPriv->stfbi_ht, stfbi, stfbi);
simple_mtx_unlock(&smPriv->st_mutex);
return entry != NULL;
}
static void
st_framebuffer_iface_remove(struct st_manager *smapi,
struct st_framebuffer_iface *stfbi)
{
struct st_manager_private *smPriv =
(struct st_manager_private *)smapi->st_manager_private;
struct hash_entry *entry;
if (!smPriv || !smPriv->stfbi_ht)
return;
simple_mtx_lock(&smPriv->st_mutex);
entry = _mesa_hash_table_search(smPriv->stfbi_ht, stfbi);
if (!entry)
goto unlock;
_mesa_hash_table_remove(smPriv->stfbi_ht, entry);
unlock:
simple_mtx_unlock(&smPriv->st_mutex);
}
/**
* The framebuffer interface object is no longer valid.
* Remove the object from the framebuffer interface hash table.
*/
static void
st_api_destroy_drawable(struct st_api *stapi,
struct st_framebuffer_iface *stfbi)
{
if (!stfbi)
return;
st_framebuffer_iface_remove(stfbi->state_manager, stfbi);
}
/**
* Purge the winsys buffers list to remove any references to
* non-existing framebuffer interface objects.
*/
static void
st_framebuffers_purge(struct st_context *st)
{
struct st_context_iface *st_iface = &st->iface;
struct st_manager *smapi = st_iface->state_manager;
struct st_framebuffer *stfb, *next;
assert(smapi);
LIST_FOR_EACH_ENTRY_SAFE_REV(stfb, next, &st->winsys_buffers, head) {
struct st_framebuffer_iface *stfbi = stfb->iface;
assert(stfbi);
/**
* If the corresponding framebuffer interface object no longer exists,
* remove the framebuffer object from the context's winsys buffers list,
* and unreference the framebuffer object, so its resources can be
* deleted.
*/
if (!st_framebuffer_iface_lookup(smapi, stfbi)) {
list_del(&stfb->head);
st_framebuffer_reference(&stfb, NULL);
}
}
}
static void
st_context_flush(struct st_context_iface *stctxi, unsigned flags,
struct pipe_fence_handle **fence,
void (*before_flush_cb) (void*),
void* args)
{
struct st_context *st = (struct st_context *) stctxi;
unsigned pipe_flags = 0;
if (flags & ST_FLUSH_END_OF_FRAME)
pipe_flags |= PIPE_FLUSH_END_OF_FRAME;
if (flags & ST_FLUSH_FENCE_FD)
pipe_flags |= PIPE_FLUSH_FENCE_FD;
/* If both the bitmap cache is dirty and there are unflushed vertices,
* it means that glBitmap was called first and then glBegin.
*/
st_flush_bitmap_cache(st);
FLUSH_VERTICES(st->ctx, 0);
/* Notify the caller that we're ready to flush */
if (before_flush_cb)
before_flush_cb(args);
st_flush(st, fence, pipe_flags);
if ((flags & ST_FLUSH_WAIT) && fence && *fence) {
st->pipe->screen->fence_finish(st->pipe->screen, NULL, *fence,
PIPE_TIMEOUT_INFINITE);
st->pipe->screen->fence_reference(st->pipe->screen, fence, NULL);
}
if (flags & ST_FLUSH_FRONT)
st_manager_flush_frontbuffer(st);
/* DRI3 changes the framebuffer after SwapBuffers, but we need to invoke
* st_manager_validate_framebuffers to notice that.
*
* Set gfx_shaders_may_be_dirty to invoke st_validate_state in the next
* draw call, which will invoke st_manager_validate_framebuffers, but it
* won't dirty states if there is no change.
*/
if (flags & ST_FLUSH_END_OF_FRAME)
st->gfx_shaders_may_be_dirty = true;
}
static bool
st_context_teximage(struct st_context_iface *stctxi,
enum st_texture_type tex_type,
int level, enum pipe_format pipe_format,
struct pipe_resource *tex, bool mipmap)
{
struct st_context *st = (struct st_context *) stctxi;
struct gl_context *ctx = st->ctx;
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
struct st_texture_object *stObj;
struct st_texture_image *stImage;
GLenum internalFormat;
GLuint width, height, depth;
GLenum target;
switch (tex_type) {
case ST_TEXTURE_1D:
target = GL_TEXTURE_1D;
break;
case ST_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
case ST_TEXTURE_3D:
target = GL_TEXTURE_3D;
break;
case ST_TEXTURE_RECT:
target = GL_TEXTURE_RECTANGLE_ARB;
break;
default:
return FALSE;
}
texObj = _mesa_get_current_tex_object(ctx, target);
_mesa_lock_texture(ctx, texObj);
stObj = st_texture_object(texObj);
/* switch to surface based */
if (!stObj->surface_based) {
_mesa_clear_texture_object(ctx, texObj, NULL);
stObj->surface_based = GL_TRUE;
}
texImage = _mesa_get_tex_image(ctx, texObj, target, level);
stImage = st_texture_image(texImage);
if (tex) {
mesa_format texFormat = st_pipe_format_to_mesa_format(pipe_format);
if (util_format_has_alpha(tex->format))
internalFormat = GL_RGBA;
else
internalFormat = GL_RGB;
_mesa_init_teximage_fields(ctx, texImage,
tex->width0, tex->height0, 1, 0,
internalFormat, texFormat);
width = tex->width0;
height = tex->height0;
depth = tex->depth0;
/* grow the image size until we hit level = 0 */
while (level > 0) {
if (width != 1)
width <<= 1;
if (height != 1)
height <<= 1;
if (depth != 1)
depth <<= 1;
level--;
}
}
else {
_mesa_clear_texture_image(ctx, texImage);
width = height = depth = 0;
}
pipe_resource_reference(&stObj->pt, tex);
st_texture_release_all_sampler_views(st, stObj);
pipe_resource_reference(&stImage->pt, tex);
stObj->surface_format = pipe_format;
stObj->needs_validation = true;
_mesa_dirty_texobj(ctx, texObj);
_mesa_unlock_texture(ctx, texObj);
return true;
}
static void
st_context_copy(struct st_context_iface *stctxi,
struct st_context_iface *stsrci, unsigned mask)
{
struct st_context *st = (struct st_context *) stctxi;
struct st_context *src = (struct st_context *) stsrci;
_mesa_copy_context(src->ctx, st->ctx, mask);
}
static bool
st_context_share(struct st_context_iface *stctxi,
struct st_context_iface *stsrci)
{
struct st_context *st = (struct st_context *) stctxi;
struct st_context *src = (struct st_context *) stsrci;
return _mesa_share_state(st->ctx, src->ctx);
}
static void
st_context_destroy(struct st_context_iface *stctxi)
{
struct st_context *st = (struct st_context *) stctxi;
st_destroy_context(st);
}
static void
st_start_thread(struct st_context_iface *stctxi)
{
struct st_context *st = (struct st_context *) stctxi;
_mesa_glthread_init(st->ctx);
/* Pin all driver threads to one L3 cache for optimal performance
* on AMD Zen. This is only done if glthread is enabled.
*
* If glthread is disabled, st_draw.c re-pins driver threads regularly
* based on the location of the app thread.
*/
struct glthread_state *glthread = &st->ctx->GLThread;
if (glthread->enabled && st->pipe->set_context_param) {
util_pin_driver_threads_to_random_L3(st->pipe, &glthread->queue.threads[0]);
}
}
static void
st_thread_finish(struct st_context_iface *stctxi)
{
struct st_context *st = (struct st_context *) stctxi;
_mesa_glthread_finish(st->ctx);
}
static void
st_manager_destroy(struct st_manager *smapi)
{
struct st_manager_private *smPriv = smapi->st_manager_private;
if (smPriv && smPriv->stfbi_ht) {
_mesa_hash_table_destroy(smPriv->stfbi_ht, NULL);
simple_mtx_destroy(&smPriv->st_mutex);
free(smPriv);
smapi->st_manager_private = NULL;
}
}
static struct st_context_iface *
st_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 st_context *shared_ctx = (struct st_context *) shared_stctxi;
struct st_context *st;
struct pipe_context *pipe;
struct gl_config* mode_ptr;
struct gl_config mode;
gl_api api;
bool no_error = false;
unsigned ctx_flags = PIPE_CONTEXT_PREFER_THREADED;
if (!(stapi->profile_mask & (1 << attribs->profile)))
return NULL;
switch (attribs->profile) {
case ST_PROFILE_DEFAULT:
api = API_OPENGL_COMPAT;
break;
case ST_PROFILE_OPENGL_ES1:
api = API_OPENGLES;
break;
case ST_PROFILE_OPENGL_ES2:
api = API_OPENGLES2;
break;
case ST_PROFILE_OPENGL_CORE:
api = API_OPENGL_CORE;
break;
default:
*error = ST_CONTEXT_ERROR_BAD_API;
return NULL;
}
_mesa_initialize();
/* Create a hash table for the framebuffer interface objects
* if it has not been created for this st manager.
*/
if (smapi->st_manager_private == NULL) {
struct st_manager_private *smPriv;
smPriv = CALLOC_STRUCT(st_manager_private);
simple_mtx_init(&smPriv->st_mutex, mtx_plain);
smPriv->stfbi_ht = _mesa_hash_table_create(NULL,
st_framebuffer_iface_hash,
st_framebuffer_iface_equal);
smapi->st_manager_private = smPriv;
smapi->destroy = st_manager_destroy;
}
if (attribs->flags & ST_CONTEXT_FLAG_ROBUST_ACCESS)
ctx_flags |= PIPE_CONTEXT_ROBUST_BUFFER_ACCESS;
if (attribs->flags & ST_CONTEXT_FLAG_NO_ERROR)
no_error = true;
if (attribs->flags & ST_CONTEXT_FLAG_LOW_PRIORITY)
ctx_flags |= PIPE_CONTEXT_LOW_PRIORITY;
else if (attribs->flags & ST_CONTEXT_FLAG_HIGH_PRIORITY)
ctx_flags |= PIPE_CONTEXT_HIGH_PRIORITY;
if (attribs->flags & ST_CONTEXT_FLAG_RESET_NOTIFICATION_ENABLED)
ctx_flags |= PIPE_CONTEXT_LOSE_CONTEXT_ON_RESET;
pipe = smapi->screen->context_create(smapi->screen, NULL, ctx_flags);
if (!pipe) {
*error = ST_CONTEXT_ERROR_NO_MEMORY;
return NULL;
}
st_visual_to_context_mode(&attribs->visual, &mode);
if (attribs->visual.no_config)
mode_ptr = NULL;
else
mode_ptr = &mode;
st = st_create_context(api, pipe, mode_ptr, shared_ctx,
&attribs->options, no_error);
if (!st) {
*error = ST_CONTEXT_ERROR_NO_MEMORY;
pipe->destroy(pipe);
return NULL;
}
if (attribs->flags & ST_CONTEXT_FLAG_DEBUG) {
if (!_mesa_set_debug_state_int(st->ctx, GL_DEBUG_OUTPUT, GL_TRUE)) {
*error = ST_CONTEXT_ERROR_NO_MEMORY;
return NULL;
}
st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT;
}
if (st->ctx->Const.ContextFlags & GL_CONTEXT_FLAG_DEBUG_BIT) {
st_update_debug_callback(st);
}
if (attribs->flags & ST_CONTEXT_FLAG_FORWARD_COMPATIBLE)
st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
if (attribs->flags & ST_CONTEXT_FLAG_ROBUST_ACCESS) {
st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB;
st->ctx->Const.RobustAccess = GL_TRUE;
}
if (attribs->flags & ST_CONTEXT_FLAG_RESET_NOTIFICATION_ENABLED) {
st->ctx->Const.ResetStrategy = GL_LOSE_CONTEXT_ON_RESET_ARB;
st_install_device_reset_callback(st);
}
if (attribs->flags & ST_CONTEXT_FLAG_RELEASE_NONE)
st->ctx->Const.ContextReleaseBehavior = GL_NONE;
/* need to perform version check */
if (attribs->major > 1 || attribs->minor > 0) {
/* Is the actual version less than the requested version?
*/
if (st->ctx->Version < attribs->major * 10U + attribs->minor) {
*error = ST_CONTEXT_ERROR_BAD_VERSION;
st_destroy_context(st);
return NULL;
}
}
st->can_scissor_clear = !!st->pipe->screen->get_param(st->pipe->screen, PIPE_CAP_CLEAR_SCISSORED);
st->invalidate_on_gl_viewport =
smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE);
st->iface.destroy = st_context_destroy;
st->iface.flush = st_context_flush;
st->iface.teximage = st_context_teximage;
st->iface.copy = st_context_copy;
st->iface.share = st_context_share;
st->iface.start_thread = st_start_thread;
st->iface.thread_finish = st_thread_finish;
st->iface.st_context_private = (void *) smapi;
st->iface.cso_context = st->cso_context;
st->iface.pipe = st->pipe;
st->iface.state_manager = smapi;
*error = ST_CONTEXT_SUCCESS;
return &st->iface;
}
static struct st_context_iface *
st_api_get_current(struct st_api *stapi)
{
GET_CURRENT_CONTEXT(ctx);
struct st_context *st = ctx ? ctx->st : NULL;
return st ? &st->iface : NULL;
}
static struct st_framebuffer *
st_framebuffer_reuse_or_create(struct st_context *st,
struct gl_framebuffer *fb,
struct st_framebuffer_iface *stfbi)
{
struct st_framebuffer *cur = NULL, *stfb = NULL;
if (!stfbi)
return NULL;
/* Check if there is already a framebuffer object for the specified
* framebuffer interface in this context. If there is one, use it.
*/
LIST_FOR_EACH_ENTRY(cur, &st->winsys_buffers, head) {
if (cur->iface_ID == stfbi->ID) {
st_framebuffer_reference(&stfb, cur);
break;
}
}
/* If there is not already a framebuffer object, create one */
if (stfb == NULL) {
cur = st_framebuffer_create(st, stfbi);
if (cur) {
/* add the referenced framebuffer interface object to
* the framebuffer interface object hash table.
*/
if (!st_framebuffer_iface_insert(stfbi->state_manager, stfbi)) {
st_framebuffer_reference(&cur, NULL);
return NULL;
}
/* add to the context's winsys buffers list */
list_add(&cur->head, &st->winsys_buffers);
st_framebuffer_reference(&stfb, cur);
}
}
return stfb;
}
static bool
st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi,
struct st_framebuffer_iface *stdrawi,
struct st_framebuffer_iface *streadi)
{
struct st_context *st = (struct st_context *) stctxi;
struct st_framebuffer *stdraw, *stread;
bool ret;
if (st) {
/* reuse or create the draw fb */
stdraw = st_framebuffer_reuse_or_create(st,
st->ctx->WinSysDrawBuffer, stdrawi);
if (streadi != stdrawi) {
/* do the same for the read fb */
stread = st_framebuffer_reuse_or_create(st,
st->ctx->WinSysReadBuffer, streadi);
}
else {
stread = NULL;
/* reuse the draw fb for the read fb */
if (stdraw)
st_framebuffer_reference(&stread, stdraw);
}
if (stdraw && stread) {
st_framebuffer_validate(stdraw, st);
if (stread != stdraw)
st_framebuffer_validate(stread, st);
ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base);
st->draw_stamp = stdraw->stamp - 1;
st->read_stamp = stread->stamp - 1;
st_context_validate(st, stdraw, stread);
}
else {
struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer();
ret = _mesa_make_current(st->ctx, incomplete, incomplete);
}
st_framebuffer_reference(&stdraw, NULL);
st_framebuffer_reference(&stread, NULL);
/* Purge the context's winsys_buffers list in case any
* of the referenced drawables no longer exist.
*/
st_framebuffers_purge(st);
}
else {
GET_CURRENT_CONTEXT(ctx);
if (ctx) {
/* Before releasing the context, release its associated
* winsys buffers first. Then purge the context's winsys buffers list
* to free the resources of any winsys buffers that no longer have
* an existing drawable.
*/
ret = _mesa_make_current(ctx, NULL, NULL);
st_framebuffers_purge(ctx->st);
}
ret = _mesa_make_current(NULL, NULL, NULL);
}
return ret;
}
static void
st_api_destroy(struct st_api *stapi)
{
}
/**
* Flush the front buffer if the current context renders to the front buffer.
*/
void
st_manager_flush_frontbuffer(struct st_context *st)
{
struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer);
struct st_renderbuffer *strb = NULL;
if (!stfb)
return;
/* If the context uses a doublebuffered visual, but the buffer is
* single-buffered, guess that it's a pbuffer, which doesn't need
* flushing.
*/
if (st->ctx->Visual.doubleBufferMode &&
!stfb->Base.Visual.doubleBufferMode)
return;
strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].
Renderbuffer);
/* Do we have a front color buffer and has it been drawn to since last
* frontbuffer flush?
*/
if (strb && strb->defined) {
stfb->iface->flush_front(&st->iface, stfb->iface,
ST_ATTACHMENT_FRONT_LEFT);
strb->defined = GL_FALSE;
/* Trigger an update of strb->defined on next draw */
st->dirty |= ST_NEW_FB_STATE;
}
}
/**
* Re-validate the framebuffers.
*/
void
st_manager_validate_framebuffers(struct st_context *st)
{
struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer);
struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer);
if (stdraw)
st_framebuffer_validate(stdraw, st);
if (stread && stread != stdraw)
st_framebuffer_validate(stread, st);
st_context_validate(st, stdraw, stread);
}
/**
* Flush any outstanding swapbuffers on the current draw framebuffer.
*/
void
st_manager_flush_swapbuffers(void)
{
GET_CURRENT_CONTEXT(ctx);
struct st_context *st = (ctx) ? ctx->st : NULL;
struct st_framebuffer *stfb;
if (!st)
return;
stfb = st_ws_framebuffer(ctx->DrawBuffer);
if (!stfb || !stfb->iface->flush_swapbuffers)
return;
stfb->iface->flush_swapbuffers(&st->iface, stfb->iface);
}
/**
* Add a color renderbuffer on demand. The FBO must correspond to a window,
* not a user-created FBO.
*/
bool
st_manager_add_color_renderbuffer(struct st_context *st,
struct gl_framebuffer *fb,
gl_buffer_index idx)
{
struct st_framebuffer *stfb = st_ws_framebuffer(fb);
/* FBO */
if (!stfb)
return false;
assert(_mesa_is_winsys_fbo(fb));
if (stfb->Base.Attachment[idx].Renderbuffer)
return true;
switch (idx) {
case BUFFER_FRONT_LEFT:
case BUFFER_BACK_LEFT:
case BUFFER_FRONT_RIGHT:
case BUFFER_BACK_RIGHT:
break;
default:
return false;
}
if (!st_framebuffer_add_renderbuffer(stfb, idx,
stfb->Base.Visual.sRGBCapable))
return false;
st_framebuffer_update_attachments(stfb);
/*
* Force a call to the frontend manager to validate the
* new renderbuffer. It might be that there is a window system
* renderbuffer available.
*/
if (stfb->iface)
stfb->iface_stamp = p_atomic_read(&stfb->iface->stamp) - 1;
st_invalidate_buffers(st);
return true;
}
static unsigned
get_version(struct pipe_screen *screen,
struct st_config_options *options, gl_api api)
{
struct gl_constants consts = {0};
struct gl_extensions extensions = {0};
GLuint version;
if (_mesa_override_gl_version_contextless(&consts, &api, &version)) {
return version;
}
_mesa_init_constants(&consts, api);
_mesa_init_extensions(&extensions);
st_init_limits(screen, &consts, &extensions);
st_init_extensions(screen, &consts, &extensions, options, api);
version = _mesa_get_version(&extensions, &consts, api);
free(consts.SpirVExtensions);
return version;
}
static void
st_api_query_versions(struct st_api *stapi, struct st_manager *sm,
struct st_config_options *options,
int *gl_core_version,
int *gl_compat_version,
int *gl_es1_version,
int *gl_es2_version)
{
*gl_core_version = get_version(sm->screen, options, API_OPENGL_CORE);
*gl_compat_version = get_version(sm->screen, options, API_OPENGL_COMPAT);
*gl_es1_version = get_version(sm->screen, options, API_OPENGLES);
*gl_es2_version = get_version(sm->screen, options, API_OPENGLES2);
}
static const struct st_api st_gl_api = {
.name = "Mesa " PACKAGE_VERSION,
.api = ST_API_OPENGL,
.profile_mask = ST_PROFILE_DEFAULT_MASK |
ST_PROFILE_OPENGL_CORE_MASK |
ST_PROFILE_OPENGL_ES1_MASK |
ST_PROFILE_OPENGL_ES2_MASK |
0,
.feature_mask = ST_API_FEATURE_MS_VISUALS_MASK,
.destroy = st_api_destroy,
.query_versions = st_api_query_versions,
.create_context = st_api_create_context,
.make_current = st_api_make_current,
.get_current = st_api_get_current,
.destroy_drawable = st_api_destroy_drawable,
};
struct st_api *
st_gl_api_create(void)
{
return (struct st_api *) &st_gl_api;
}