gtk/gsk/gskvulkanrender.c
Matthias Clasen b0e8d8483d More work on text nodes
This commit takes several steps towards rendering text
like we want to.

The creation of the cairo surface and texture is moved
to the backend (in GskVulkanRenderer). We add a mask
shader that is used in the next text pipeline to use
the texture as a mask, like cairo_mask_surface does.
There is a separate color text pipeline that uses the
already existing blend shaders to use the texture as
a source, like cairo_paint does.

The text node api is simplified to have just a single
offset, which determines the left end of the text baseline,
like all our other text drawing APIs.
2017-09-10 14:36:26 -04:00

685 lines
26 KiB
C

#include "config.h"
#include "gskprivate.h"
#include "gskvulkanrenderprivate.h"
#include "gskrendererprivate.h"
#include "gskvulkanbufferprivate.h"
#include "gskvulkancommandpoolprivate.h"
#include "gskvulkanpipelineprivate.h"
#include "gskvulkanrenderpassprivate.h"
#include "gskvulkanblendpipelineprivate.h"
#include "gskvulkanblurpipelineprivate.h"
#include "gskvulkanborderpipelineprivate.h"
#include "gskvulkanboxshadowpipelineprivate.h"
#include "gskvulkancolorpipelineprivate.h"
#include "gskvulkancolortextpipelineprivate.h"
#include "gskvulkaneffectpipelineprivate.h"
#include "gskvulkanlineargradientpipelineprivate.h"
#include "gskvulkantextpipelineprivate.h"
#define ORTHO_NEAR_PLANE -10000
#define ORTHO_FAR_PLANE 10000
#define DESCRIPTOR_POOL_MAXSETS 128
#define DESCRIPTOR_POOL_MAXSETS_INCREASE 128
struct _GskVulkanRender
{
GskRenderer *renderer;
GdkVulkanContext *vulkan;
graphene_matrix_t mvp;
int scale_factor;
VkRect2D viewport;
cairo_region_t *clip;
GHashTable *framebuffers;
GskVulkanCommandPool *command_pool;
VkFence fence;
VkRenderPass render_pass;
GskVulkanPipelineLayout *layout;
GskVulkanUploader *uploader;
GskVulkanBuffer *vertex_buffer;
GHashTable *descriptor_set_indexes;
VkDescriptorPool descriptor_pool;
uint32_t descriptor_pool_maxsets;
VkDescriptorSet *descriptor_sets;
gsize n_descriptor_sets;
GskVulkanPipeline *pipelines[GSK_VULKAN_N_PIPELINES];
GskVulkanImage *target;
GSList *render_passes;
GSList *cleanup_images;
};
static void
gsk_vulkan_render_setup (GskVulkanRender *self,
GskVulkanImage *target,
const graphene_rect_t *rect)
{
GdkWindow *window = gsk_renderer_get_window (self->renderer);
graphene_matrix_t modelview, projection;
self->target = g_object_ref (target);
if (rect)
{
self->viewport = (VkRect2D) { { rect->origin.x, rect->origin.y }, { rect->size.width, rect->size.height } };
self->scale_factor = 1;
self->clip = cairo_region_create_rectangle (&(cairo_rectangle_int_t) {
0, 0,
gsk_vulkan_image_get_width (target), gsk_vulkan_image_get_height (target)
});
}
else
{
self->scale_factor = gsk_renderer_get_scale_factor (self->renderer);
self->viewport.offset = (VkOffset2D) { 0, 0 };
self->viewport.extent.width = gdk_window_get_width (window) * self->scale_factor;
self->viewport.extent.height = gdk_window_get_height (window) * self->scale_factor;
self->clip = gdk_drawing_context_get_clip (gsk_renderer_get_drawing_context (self->renderer));
}
graphene_matrix_init_scale (&modelview, self->scale_factor, self->scale_factor, 1.0);
graphene_matrix_init_ortho (&projection,
self->viewport.offset.x, self->viewport.offset.x + self->viewport.extent.width,
self->viewport.offset.y, self->viewport.offset.y + self->viewport.extent.height,
ORTHO_NEAR_PLANE,
ORTHO_FAR_PLANE);
graphene_matrix_multiply (&modelview, &projection, &self->mvp);
}
GskVulkanRender *
gsk_vulkan_render_new (GskRenderer *renderer,
GdkVulkanContext *context)
{
GskVulkanRender *self;
VkDevice device;
self = g_slice_new0 (GskVulkanRender);
self->vulkan = context;
self->renderer = renderer;
self->framebuffers = g_hash_table_new (g_direct_hash, g_direct_equal);
self->descriptor_set_indexes = g_hash_table_new (g_direct_hash, g_direct_equal);
device = gdk_vulkan_context_get_device (self->vulkan);
self->command_pool = gsk_vulkan_command_pool_new (self->vulkan);
GSK_VK_CHECK (vkCreateFence, device,
&(VkFenceCreateInfo) {
.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
.flags = VK_FENCE_CREATE_SIGNALED_BIT
},
NULL,
&self->fence);
self->descriptor_pool_maxsets = DESCRIPTOR_POOL_MAXSETS;
GSK_VK_CHECK (vkCreateDescriptorPool, device,
&(VkDescriptorPoolCreateInfo) {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
.maxSets = self->descriptor_pool_maxsets,
.poolSizeCount = 1,
.pPoolSizes = (VkDescriptorPoolSize[1]) {
{
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.descriptorCount = self->descriptor_pool_maxsets
}
}
},
NULL,
&self->descriptor_pool);
GSK_VK_CHECK (vkCreateRenderPass, gdk_vulkan_context_get_device (self->vulkan),
&(VkRenderPassCreateInfo) {
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
.attachmentCount = 1,
.pAttachments = (VkAttachmentDescription[]) {
{
.format = gdk_vulkan_context_get_image_format (self->vulkan),
.samples = VK_SAMPLE_COUNT_1_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
}
},
.subpassCount = 1,
.pSubpasses = (VkSubpassDescription []) {
{
.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
.inputAttachmentCount = 0,
.colorAttachmentCount = 1,
.pColorAttachments = (VkAttachmentReference []) {
{
.attachment = 0,
.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
}
},
.pResolveAttachments = (VkAttachmentReference []) {
{
.attachment = VK_ATTACHMENT_UNUSED,
.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
}
},
.pDepthStencilAttachment = NULL,
.preserveAttachmentCount = 1,
.pPreserveAttachments = (uint32_t []) { 0 },
}
},
.dependencyCount = 0
},
NULL,
&self->render_pass);
self->layout = gsk_vulkan_pipeline_layout_new (self->vulkan);
self->uploader = gsk_vulkan_uploader_new (self->vulkan, self->command_pool);
return self;
}
typedef struct {
VkFramebuffer framebuffer;
} HashFramebufferEntry;
static void
gsk_vulkan_render_remove_framebuffer_from_image (gpointer data,
GObject *image)
{
GskVulkanRender *self = data;
HashFramebufferEntry *fb;
fb = g_hash_table_lookup (self->framebuffers, image);
g_hash_table_remove (self->framebuffers, image);
vkDestroyFramebuffer (gdk_vulkan_context_get_device (self->vulkan),
fb->framebuffer,
NULL);
g_slice_free (HashFramebufferEntry, fb);
}
static VkFramebuffer
gsk_vulkan_render_get_framebuffer (GskVulkanRender *self,
GskVulkanImage *image)
{
HashFramebufferEntry *fb;
fb = g_hash_table_lookup (self->framebuffers, image);
if (fb)
return fb->framebuffer;
fb = g_slice_new0 (HashFramebufferEntry);
GSK_VK_CHECK (vkCreateFramebuffer, gdk_vulkan_context_get_device (self->vulkan),
&(VkFramebufferCreateInfo) {
.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
.renderPass = self->render_pass,
.attachmentCount = 1,
.pAttachments = (VkImageView[1]) {
gsk_vulkan_image_get_image_view (image)
},
.width = gsk_vulkan_image_get_width (image),
.height = gsk_vulkan_image_get_height (image),
.layers = 1
},
NULL,
&fb->framebuffer);
g_hash_table_insert (self->framebuffers, image, fb);
g_object_weak_ref (G_OBJECT (image), gsk_vulkan_render_remove_framebuffer_from_image, self);
return fb->framebuffer;
}
void
gsk_vulkan_render_add_cleanup_image (GskVulkanRender *self,
GskVulkanImage *image)
{
self->cleanup_images = g_slist_prepend (self->cleanup_images, image);
}
void
gsk_vulkan_render_add_node (GskVulkanRender *self,
GskRenderNode *node)
{
GskVulkanRenderPass *pass = gsk_vulkan_render_pass_new (self->vulkan);
self->render_passes = g_slist_prepend (self->render_passes, pass);
gsk_vulkan_render_pass_add (pass,
self,
&self->mvp,
&GRAPHENE_RECT_INIT (
self->viewport.offset.x, self->viewport.offset.y,
self->viewport.extent.width, self->viewport.extent.height
),
node);
}
void
gsk_vulkan_render_upload (GskVulkanRender *self)
{
GSList *l;
for (l = self->render_passes; l; l = l->next)
{
gsk_vulkan_render_pass_upload (l->data, self, self->uploader);
}
gsk_vulkan_uploader_upload (self->uploader);
}
static gsize
gsk_vulkan_renderer_count_vertex_data (GskVulkanRender *self)
{
gsize n_bytes;
GSList *l;
n_bytes = 0;
for (l = self->render_passes; l; l = l->next)
{
n_bytes += gsk_vulkan_render_pass_count_vertex_data (l->data);
}
return n_bytes;
}
static GskVulkanBuffer *
gsk_vulkan_render_collect_vertex_data (GskVulkanRender *self)
{
GskVulkanBuffer *buffer;
guchar *data;
GSList *l;
gsize offset, n_bytes;
offset = 0;
n_bytes = gsk_vulkan_renderer_count_vertex_data (self);
buffer = gsk_vulkan_buffer_new (self->vulkan, n_bytes);
data = gsk_vulkan_buffer_map (buffer);
for (l = self->render_passes; l; l = l->next)
{
offset += gsk_vulkan_render_pass_collect_vertex_data (l->data, self, data, offset, n_bytes - offset);
g_assert (offset <= n_bytes);
}
gsk_vulkan_buffer_unmap (buffer);
return buffer;
}
GskVulkanPipeline *
gsk_vulkan_render_get_pipeline (GskVulkanRender *self,
GskVulkanPipelineType type)
{
static const struct {
const char *name;
GskVulkanPipeline * (* create_func) (GskVulkanPipelineLayout *layout, const char *name, VkRenderPass render_pass);
} pipeline_info[GSK_VULKAN_N_PIPELINES] = {
{ "blend", gsk_vulkan_blend_pipeline_new },
{ "blend-clip", gsk_vulkan_blend_pipeline_new },
{ "blend-clip-rounded", gsk_vulkan_blend_pipeline_new },
{ "color", gsk_vulkan_color_pipeline_new },
{ "color-clip", gsk_vulkan_color_pipeline_new },
{ "color-clip-rounded", gsk_vulkan_color_pipeline_new },
{ "linear", gsk_vulkan_linear_gradient_pipeline_new },
{ "linear-clip", gsk_vulkan_linear_gradient_pipeline_new },
{ "linear-clip-rounded", gsk_vulkan_linear_gradient_pipeline_new },
{ "color-matrix", gsk_vulkan_effect_pipeline_new },
{ "color-matrix-clip", gsk_vulkan_effect_pipeline_new },
{ "color-matrix-clip-rounded", gsk_vulkan_effect_pipeline_new },
{ "border", gsk_vulkan_border_pipeline_new },
{ "border-clip", gsk_vulkan_border_pipeline_new },
{ "border-clip-rounded", gsk_vulkan_border_pipeline_new },
{ "inset-shadow", gsk_vulkan_box_shadow_pipeline_new },
{ "inset-shadow-clip", gsk_vulkan_box_shadow_pipeline_new },
{ "inset-shadow-clip-rounded", gsk_vulkan_box_shadow_pipeline_new },
{ "outset-shadow", gsk_vulkan_box_shadow_pipeline_new },
{ "outset-shadow-clip", gsk_vulkan_box_shadow_pipeline_new },
{ "outset-shadow-clip-rounded", gsk_vulkan_box_shadow_pipeline_new },
{ "blur", gsk_vulkan_blur_pipeline_new },
{ "blur-clip", gsk_vulkan_blur_pipeline_new },
{ "blur-clip-rounded", gsk_vulkan_blur_pipeline_new },
{ "mask", gsk_vulkan_text_pipeline_new },
{ "mask-clip", gsk_vulkan_text_pipeline_new },
{ "mask-clip-rounded", gsk_vulkan_text_pipeline_new },
{ "blend", gsk_vulkan_color_text_pipeline_new },
{ "blend-clip", gsk_vulkan_color_text_pipeline_new },
{ "blend-clip-rounded", gsk_vulkan_color_text_pipeline_new },
};
g_return_val_if_fail (type < GSK_VULKAN_N_PIPELINES, NULL);
if (self->pipelines[type] == NULL)
{
self->pipelines[type] = pipeline_info[type].create_func (self->layout,
pipeline_info[type].name,
self->render_pass);
}
return self->pipelines[type];
}
VkDescriptorSet
gsk_vulkan_render_get_descriptor_set (GskVulkanRender *self,
gsize id)
{
g_assert (id < self->n_descriptor_sets);
return self->descriptor_sets[id];
}
gsize
gsk_vulkan_render_reserve_descriptor_set (GskVulkanRender *self,
GskVulkanImage *source)
{
gpointer id_plus_one;
id_plus_one = g_hash_table_lookup (self->descriptor_set_indexes, source);
if (id_plus_one)
return GPOINTER_TO_SIZE (id_plus_one) - 1;
id_plus_one = GSIZE_TO_POINTER (g_hash_table_size (self->descriptor_set_indexes) + 1);
g_hash_table_insert (self->descriptor_set_indexes, source, id_plus_one);
return GPOINTER_TO_SIZE (id_plus_one) - 1;
}
static void
gsk_vulkan_render_prepare_descriptor_sets (GskVulkanRender *self,
VkSampler sampler)
{
GHashTableIter iter;
gpointer key, value;
VkDevice device;
GSList *l;
guint i, needed_sets;
device = gdk_vulkan_context_get_device (self->vulkan);
for (l = self->render_passes; l; l = l->next)
{
gsk_vulkan_render_pass_reserve_descriptor_sets (l->data, self);
}
needed_sets = g_hash_table_size (self->descriptor_set_indexes);
if (needed_sets > self->n_descriptor_sets)
{
if (needed_sets > self->descriptor_pool_maxsets)
{
guint added_sets = needed_sets - self->descriptor_pool_maxsets;
added_sets = added_sets + DESCRIPTOR_POOL_MAXSETS_INCREASE - 1;
added_sets -= added_sets % DESCRIPTOR_POOL_MAXSETS_INCREASE;
vkDestroyDescriptorPool (device,
self->descriptor_pool,
NULL);
self->descriptor_pool_maxsets += added_sets;
GSK_VK_CHECK (vkCreateDescriptorPool, device,
&(VkDescriptorPoolCreateInfo) {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
.maxSets = self->descriptor_pool_maxsets,
.poolSizeCount = 1,
.pPoolSizes = (VkDescriptorPoolSize[1]) {
{
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.descriptorCount = self->descriptor_pool_maxsets
}
}
},
NULL,
&self->descriptor_pool);
}
else
{
GSK_VK_CHECK (vkResetDescriptorPool, device,
self->descriptor_pool,
0);
}
self->n_descriptor_sets = needed_sets;
self->descriptor_sets = g_renew (VkDescriptorSet, self->descriptor_sets, needed_sets);
}
VkDescriptorSetLayout *layouts = g_newa (VkDescriptorSetLayout, needed_sets);
for (i = 0; i < needed_sets; i++)
{
layouts[i] = gsk_vulkan_pipeline_layout_get_descriptor_set_layout (self->layout);
}
GSK_VK_CHECK (vkAllocateDescriptorSets, device,
&(VkDescriptorSetAllocateInfo) {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
.descriptorPool = self->descriptor_pool,
.descriptorSetCount = needed_sets,
.pSetLayouts = layouts
},
self->descriptor_sets);
g_hash_table_iter_init (&iter, self->descriptor_set_indexes);
while (g_hash_table_iter_next (&iter, &key, &value))
{
GskVulkanImage *image = key;
gsize id = GPOINTER_TO_SIZE (value) - 1;
vkUpdateDescriptorSets (device,
1,
(VkWriteDescriptorSet[1]) {
{
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstSet = self->descriptor_sets[id],
.dstBinding = 0,
.dstArrayElement = 0,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.pImageInfo = &(VkDescriptorImageInfo) {
.sampler = sampler,
.imageView = gsk_vulkan_image_get_image_view (image),
.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL
}
}
},
0, NULL);
}
}
void
gsk_vulkan_render_draw (GskVulkanRender *self,
VkSampler sampler)
{
VkCommandBuffer command_buffer;
GSList *l;
guint i;
gsk_vulkan_render_prepare_descriptor_sets (self, sampler);
command_buffer = gsk_vulkan_command_pool_get_buffer (self->command_pool);
self->vertex_buffer = gsk_vulkan_render_collect_vertex_data (self);
vkCmdSetViewport (command_buffer,
0,
1,
&(VkViewport) {
.x = 0,
.y = 0,
.width = self->viewport.extent.width,
.height = self->viewport.extent.height,
.minDepth = 0,
.maxDepth = 1
});
for (i = 0; i < cairo_region_num_rectangles (self->clip); i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (self->clip, i, &rect);
vkCmdSetScissor (command_buffer,
0,
1,
&(VkRect2D) {
{ rect.x * self->scale_factor, rect.y * self->scale_factor },
{ rect.width * self->scale_factor, rect.height * self->scale_factor }
});
vkCmdBeginRenderPass (command_buffer,
&(VkRenderPassBeginInfo) {
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
.renderPass = self->render_pass,
.framebuffer = gsk_vulkan_render_get_framebuffer (self, self->target),
.renderArea = {
{ rect.x * self->scale_factor, rect.y * self->scale_factor },
{ rect.width * self->scale_factor, rect.height * self->scale_factor }
},
.clearValueCount = 1,
.pClearValues = (VkClearValue [1]) {
{ .color = { .float32 = { 0.f, 0.f, 0.f, 0.f } } }
}
},
VK_SUBPASS_CONTENTS_INLINE);
for (l = self->render_passes; l; l = l->next)
{
gsk_vulkan_render_pass_draw (l->data, self, self->vertex_buffer, self->layout, command_buffer);
}
vkCmdEndRenderPass (command_buffer);
}
gsk_vulkan_command_pool_submit_buffer (self->command_pool, command_buffer, self->fence);
if (GSK_RENDER_MODE_CHECK (SYNC))
{
GSK_VK_CHECK (vkWaitForFences, gdk_vulkan_context_get_device (self->vulkan),
1,
&self->fence,
VK_TRUE,
INT64_MAX);
}
}
GskTexture *
gsk_vulkan_render_download_target (GskVulkanRender *self)
{
gsk_vulkan_uploader_reset (self->uploader);
return gsk_vulkan_image_download (self->target, self->uploader);
}
static void
gsk_vulkan_render_cleanup (GskVulkanRender *self)
{
VkDevice device = gdk_vulkan_context_get_device (self->vulkan);
/* XXX: Wait for fence here or just in reset()? */
GSK_VK_CHECK (vkWaitForFences, device,
1,
&self->fence,
VK_TRUE,
INT64_MAX);
GSK_VK_CHECK (vkResetFences, device,
1,
&self->fence);
gsk_vulkan_uploader_reset (self->uploader);
gsk_vulkan_command_pool_reset (self->command_pool);
g_clear_pointer (&self->vertex_buffer, gsk_vulkan_buffer_free);
g_hash_table_remove_all (self->descriptor_set_indexes);
GSK_VK_CHECK (vkResetDescriptorPool, device,
self->descriptor_pool,
0);
g_slist_free_full (self->render_passes, (GDestroyNotify) gsk_vulkan_render_pass_free);
self->render_passes = NULL;
g_slist_free_full (self->cleanup_images, g_object_unref);
self->cleanup_images = NULL;
g_clear_pointer (&self->clip, cairo_region_destroy);
g_clear_object (&self->target);
}
void
gsk_vulkan_render_free (GskVulkanRender *self)
{
GHashTableIter iter;
gpointer key, value;
VkDevice device;
guint i;
gsk_vulkan_render_cleanup (self);
device = gdk_vulkan_context_get_device (self->vulkan);
g_hash_table_iter_init (&iter, self->framebuffers);
while (g_hash_table_iter_next (&iter, &key, &value))
{
HashFramebufferEntry *fb = value;
vkDestroyFramebuffer (gdk_vulkan_context_get_device (self->vulkan),
fb->framebuffer,
NULL);
g_slice_free (HashFramebufferEntry, fb);
g_object_weak_unref (G_OBJECT (key), gsk_vulkan_render_remove_framebuffer_from_image, self);
g_hash_table_iter_remove (&iter);
}
g_hash_table_unref (self->framebuffers);
for (i = 0; i < GSK_VULKAN_N_PIPELINES; i++)
g_clear_object (&self->pipelines[i]);
g_clear_pointer (&self->uploader, gsk_vulkan_uploader_free);
g_clear_pointer (&self->layout, gsk_vulkan_pipeline_layout_unref);
vkDestroyRenderPass (device,
self->render_pass,
NULL);
vkDestroyDescriptorPool (device,
self->descriptor_pool,
NULL);
g_free (self->descriptor_sets);
g_hash_table_unref (self->descriptor_set_indexes);
vkDestroyFence (device,
self->fence,
NULL);
gsk_vulkan_command_pool_free (self->command_pool);
g_slice_free (GskVulkanRender, self);
}
gboolean
gsk_vulkan_render_is_busy (GskVulkanRender *self)
{
return vkGetFenceStatus (gdk_vulkan_context_get_device (self->vulkan), self->fence) != VK_SUCCESS;
}
void
gsk_vulkan_render_reset (GskVulkanRender *self,
GskVulkanImage *target,
const graphene_rect_t *rect)
{
gsk_vulkan_render_cleanup (self);
gsk_vulkan_render_setup (self, target, rect);
}
GskRenderer *
gsk_vulkan_render_get_renderer (GskVulkanRender *self)
{
return self->renderer;
}