gtk/gsk/gpu/gskgpuframe.c

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#include "config.h"
#include "gskgpuframeprivate.h"
#include "gskgpubufferprivate.h"
#include "gskgpudeviceprivate.h"
#include "gskgpudownloadopprivate.h"
#include "gskgpuimageprivate.h"
#include "gskgpunodeprocessorprivate.h"
#include "gskgpuopprivate.h"
#include "gskgpurendererprivate.h"
#include "gskgpurenderpassopprivate.h"
#include "gskdebugprivate.h"
#include "gskrendererprivate.h"
#define DEFAULT_VERTEX_BUFFER_SIZE 128 * 1024
/* GL_MAX_UNIFORM_BLOCK_SIZE is at 16384 */
#define DEFAULT_STORAGE_BUFFER_SIZE 16 * 1024 * 64
#define GDK_ARRAY_NAME gsk_gpu_ops
#define GDK_ARRAY_TYPE_NAME GskGpuOps
#define GDK_ARRAY_ELEMENT_TYPE guchar
#define GDK_ARRAY_BY_VALUE 1
#include "gdk/gdkarrayimpl.c"
typedef struct _GskGpuFramePrivate GskGpuFramePrivate;
struct _GskGpuFramePrivate
{
GskGpuRenderer *renderer;
GskGpuDevice *device;
GskGpuOptimizations optimizations;
gint64 timestamp;
GskGpuOps ops;
GskGpuOp *first_op;
GskGpuBuffer *vertex_buffer;
guchar *vertex_buffer_data;
gsize vertex_buffer_used;
GskGpuBuffer *storage_buffer;
guchar *storage_buffer_data;
gsize storage_buffer_used;
};
G_DEFINE_TYPE_WITH_PRIVATE (GskGpuFrame, gsk_gpu_frame, G_TYPE_OBJECT)
static void
gsk_gpu_frame_default_setup (GskGpuFrame *self)
{
}
static void
gsk_gpu_frame_default_cleanup (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
GskGpuOp *op;
gsize i;
for (i = 0; i < gsk_gpu_ops_get_size (&priv->ops); i += op->op_class->size)
{
op = (GskGpuOp *) gsk_gpu_ops_index (&priv->ops, i);
gsk_gpu_op_finish (op);
}
gsk_gpu_ops_set_size (&priv->ops, 0);
}
static void
gsk_gpu_frame_cleanup (GskGpuFrame *self)
{
GSK_GPU_FRAME_GET_CLASS (self)->cleanup (self);
}
static void
gsk_gpu_frame_dispose (GObject *object)
{
GskGpuFrame *self = GSK_GPU_FRAME (object);
gsk_gpu_frame_cleanup (self);
G_OBJECT_CLASS (gsk_gpu_frame_parent_class)->dispose (object);
}
static void
gsk_gpu_frame_finalize (GObject *object)
{
GskGpuFrame *self = GSK_GPU_FRAME (object);
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsk_gpu_ops_clear (&priv->ops);
g_clear_object (&priv->vertex_buffer);
g_clear_object (&priv->storage_buffer);
g_object_unref (priv->device);
G_OBJECT_CLASS (gsk_gpu_frame_parent_class)->finalize (object);
}
static void
gsk_gpu_frame_class_init (GskGpuFrameClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
klass->setup = gsk_gpu_frame_default_setup;
klass->cleanup = gsk_gpu_frame_default_cleanup;
object_class->dispose = gsk_gpu_frame_dispose;
object_class->finalize = gsk_gpu_frame_finalize;
}
static void
gsk_gpu_frame_init (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsk_gpu_ops_init (&priv->ops);
}
void
gsk_gpu_frame_setup (GskGpuFrame *self,
GskGpuRenderer *renderer,
GskGpuDevice *device,
GskGpuOptimizations optimizations)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
/* no reference, the renderer owns us */
priv->renderer = renderer;
priv->device = g_object_ref (device);
priv->optimizations = optimizations;
GSK_GPU_FRAME_GET_CLASS (self)->setup (self);
}
GskGpuDevice *
gsk_gpu_frame_get_device (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
return priv->device;
}
GdkDrawContext *
gsk_gpu_frame_get_context (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
return gsk_gpu_renderer_get_context (priv->renderer);
}
gint64
gsk_gpu_frame_get_timestamp (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
return priv->timestamp;
}
gboolean
gsk_gpu_frame_should_optimize (GskGpuFrame *self,
GskGpuOptimizations optimization)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
return (priv->optimizations & optimization) == optimization;
}
static void
gsk_gpu_frame_verbose_print (GskGpuFrame *self,
const char *heading)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
if (GSK_RENDERER_DEBUG_CHECK (GSK_RENDERER (priv->renderer), VERBOSE))
{
GskGpuOp *op;
guint indent = 1;
GString *string = g_string_new (heading);
g_string_append (string, ":\n");
for (op = priv->first_op; op; op = op->next)
{
if (op->op_class->stage == GSK_GPU_STAGE_END_PASS)
indent--;
gsk_gpu_op_print (op, self, string, indent);
if (op->op_class->stage == GSK_GPU_STAGE_BEGIN_PASS)
indent++;
}
gdk_debug_message ("%s", string->str);
g_string_free (string, TRUE);
}
}
static void
gsk_gpu_frame_seal_ops (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
GskGpuOp *last, *op;
guint i;
priv->first_op = (GskGpuOp *) gsk_gpu_ops_index (&priv->ops, 0);
last = priv->first_op;
for (i = last->op_class->size; i < gsk_gpu_ops_get_size (&priv->ops); i += op->op_class->size)
{
op = (GskGpuOp *) gsk_gpu_ops_index (&priv->ops, i);
last->next = op;
last = op;
}
}
typedef struct
{
struct {
GskGpuOp *first;
GskGpuOp *last;
} upload, command;
} SortData;
static GskGpuOp *
gsk_gpu_frame_sort_render_pass (GskGpuFrame *self,
GskGpuOp *op,
SortData *sort_data)
{
SortData subpasses = { { NULL, NULL }, { NULL, NULL } };
while (op)
{
switch (op->op_class->stage)
{
case GSK_GPU_STAGE_UPLOAD:
if (sort_data->upload.first == NULL)
sort_data->upload.first = op;
else
sort_data->upload.last->next = op;
sort_data->upload.last = op;
op = op->next;
break;
case GSK_GPU_STAGE_COMMAND:
case GSK_GPU_STAGE_SHADER:
if (sort_data->command.first == NULL)
sort_data->command.first = op;
else
sort_data->command.last->next = op;
sort_data->command.last = op;
op = op->next;
break;
case GSK_GPU_STAGE_PASS:
if (subpasses.command.first == NULL)
subpasses.command.first = op;
else
subpasses.command.last->next = op;
subpasses.command.last = op;
op = op->next;
break;
case GSK_GPU_STAGE_BEGIN_PASS:
if (subpasses.command.first == NULL)
subpasses.command.first = op;
else
subpasses.command.last->next = op;
subpasses.command.last = op;
/* append subpass to existing subpasses */
op = gsk_gpu_frame_sort_render_pass (self, op->next, &subpasses);
break;
case GSK_GPU_STAGE_END_PASS:
sort_data->command.last->next = op;
sort_data->command.last = op;
op = op->next;
goto out;
default:
g_assert_not_reached ();
break;
}
}
out:
/* prepend subpasses to the current pass */
if (subpasses.upload.first)
{
if (sort_data->upload.first != NULL)
subpasses.upload.last->next = sort_data->upload.first;
else
sort_data->upload.last = subpasses.upload.last;
sort_data->upload.first = subpasses.upload.first;
}
if (subpasses.command.first)
{
if (sort_data->command.first != NULL)
subpasses.command.last->next = sort_data->command.first;
else
sort_data->command.last = subpasses.command.last;
sort_data->command.first = subpasses.command.first;
}
return op;
}
static void
gsk_gpu_frame_sort_ops (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
SortData sort_data = { { NULL, }, };
gsk_gpu_frame_sort_render_pass (self, priv->first_op, &sort_data);
if (sort_data.upload.first)
{
sort_data.upload.last->next = sort_data.command.first;
priv->first_op = sort_data.upload.first;
}
else
priv->first_op = sort_data.command.first;
if (sort_data.command.last)
sort_data.command.last->next = NULL;
}
gpointer
gsk_gpu_frame_alloc_op (GskGpuFrame *self,
gsize size)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsize pos;
pos = gsk_gpu_ops_get_size (&priv->ops);
gsk_gpu_ops_splice (&priv->ops,
pos,
0, FALSE,
NULL,
size);
return gsk_gpu_ops_index (&priv->ops, pos);
}
static GskGpuBuffer *
gsk_gpu_frame_create_vertex_buffer (GskGpuFrame *self,
gsize size)
{
return GSK_GPU_FRAME_GET_CLASS (self)->create_vertex_buffer (self, size);
}
static GskGpuBuffer *
gsk_gpu_frame_create_storage_buffer (GskGpuFrame *self,
gsize size)
{
return GSK_GPU_FRAME_GET_CLASS (self)->create_storage_buffer (self, size);
}
static inline gsize
round_up (gsize number, gsize divisor)
{
return (number + divisor - 1) / divisor * divisor;
}
gsize
gsk_gpu_frame_reserve_vertex_data (GskGpuFrame *self,
gsize size)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsize size_needed;
if (priv->vertex_buffer == NULL)
priv->vertex_buffer = gsk_gpu_frame_create_vertex_buffer (self, DEFAULT_VERTEX_BUFFER_SIZE);
size_needed = round_up (priv->vertex_buffer_used, size) + size;
if (gsk_gpu_buffer_get_size (priv->vertex_buffer) < size_needed)
{
gsize old_size = gsk_gpu_buffer_get_size (priv->vertex_buffer);
GskGpuBuffer *new_buffer = gsk_gpu_frame_create_vertex_buffer (self, old_size * 2);
guchar *new_data = gsk_gpu_buffer_map (new_buffer);
if (priv->vertex_buffer_data)
{
memcpy (new_data, priv->vertex_buffer_data, old_size);
gsk_gpu_buffer_unmap (priv->vertex_buffer);
}
g_object_unref (priv->vertex_buffer);
priv->vertex_buffer = new_buffer;
priv->vertex_buffer_data = new_data;
}
priv->vertex_buffer_used = size_needed;
return size_needed - size;
}
guchar *
gsk_gpu_frame_get_vertex_data (GskGpuFrame *self,
gsize offset)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
if (priv->vertex_buffer_data == NULL)
priv->vertex_buffer_data = gsk_gpu_buffer_map (priv->vertex_buffer);
return priv->vertex_buffer_data + offset;
}
static void
gsk_gpu_frame_ensure_storage_buffer (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
if (priv->storage_buffer_data != NULL)
return;
if (priv->storage_buffer == NULL)
priv->storage_buffer = gsk_gpu_frame_create_storage_buffer (self, DEFAULT_STORAGE_BUFFER_SIZE);
priv->storage_buffer_data = gsk_gpu_buffer_map (priv->storage_buffer);
}
guint32
gsk_gpu_frame_get_image_descriptor (GskGpuFrame *self,
GskGpuImage *image,
GskGpuSampler sampler)
{
return GSK_GPU_FRAME_GET_CLASS (self)->get_image_descriptor (self, image, sampler);
}
static void
gsk_gpu_frame_buffer_memory_ensure_size (GskGpuBufferWriter *writer,
gsize size)
{
/* FIXME: implement */
g_assert_not_reached ();
}
static gsize
gsk_gpu_frame_buffer_memory_finish (GskGpuBufferWriter *writer,
gboolean commit)
{
GskGpuFrame *self = GSK_GPU_FRAME (writer->user_data);
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsize offset;
if (!commit)
return 0;
offset = priv->storage_buffer_used;
priv->storage_buffer_used = writer->size;
return offset;
}
void
gsk_gpu_frame_write_buffer_memory (GskGpuFrame *self,
GskGpuBufferWriter *writer)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsk_gpu_frame_ensure_storage_buffer (self);
writer->user_data = self;
writer->ensure_size = gsk_gpu_frame_buffer_memory_ensure_size;
writer->finish = gsk_gpu_frame_buffer_memory_finish;
writer->data = priv->storage_buffer_data;
writer->initial_size = priv->storage_buffer_used;
writer->size = priv->storage_buffer_used;
writer->allocated = gsk_gpu_buffer_get_size (priv->storage_buffer);
}
gboolean
gsk_gpu_frame_is_busy (GskGpuFrame *self)
{
return GSK_GPU_FRAME_GET_CLASS (self)->is_busy (self);
}
static void
copy_texture (gpointer user_data,
GdkTexture *texture)
{
GdkTexture **target = (GdkTexture **) user_data;
*target = g_object_ref (texture);
}
static void
gsk_gpu_frame_record (GskGpuFrame *self,
gint64 timestamp,
GskGpuImage *target,
const cairo_region_t *clip,
GskRenderNode *node,
const graphene_rect_t *viewport,
GdkTexture **texture)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
cairo_rectangle_int_t extents;
priv->timestamp = timestamp;
if (clip)
{
cairo_region_get_extents (clip, &extents);
}
else
{
extents = (cairo_rectangle_int_t) {
0, 0,
gsk_gpu_image_get_width (target),
gsk_gpu_image_get_height (target)
};
}
gsk_gpu_render_pass_begin_op (self,
target,
&extents,
GSK_RENDER_PASS_PRESENT);
gsk_gpu_node_processor_process (self,
target,
&extents,
node,
viewport);
gsk_gpu_render_pass_end_op (self,
target,
GSK_RENDER_PASS_PRESENT);
if (texture)
gsk_gpu_download_op (self, target, copy_texture, texture);
}
static void
gsk_gpu_frame_submit (GskGpuFrame *self)
{
GskGpuFramePrivate *priv = gsk_gpu_frame_get_instance_private (self);
gsk_gpu_frame_seal_ops (self);
gsk_gpu_frame_verbose_print (self, "start of frame");
gsk_gpu_frame_sort_ops (self);
gsk_gpu_frame_verbose_print (self, "after sort");
if (priv->vertex_buffer)
{
gsk_gpu_buffer_unmap (priv->vertex_buffer);
priv->vertex_buffer_data = NULL;
priv->vertex_buffer_used = 0;
}
if (priv->storage_buffer_data)
{
gsk_gpu_buffer_unmap (priv->storage_buffer);
priv->storage_buffer_data = NULL;
priv->storage_buffer_used = 0;
}
GSK_GPU_FRAME_GET_CLASS (self)->submit (self,
priv->vertex_buffer,
priv->storage_buffer,
priv->first_op);
}
void
gsk_gpu_frame_render (GskGpuFrame *self,
gint64 timestamp,
GskGpuImage *target,
const cairo_region_t *region,
GskRenderNode *node,
const graphene_rect_t *viewport,
GdkTexture **texture)
{
gsk_gpu_frame_cleanup (self);
gsk_gpu_frame_record (self, timestamp, target, region, node, viewport, texture);
gsk_gpu_frame_submit (self);
}