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gtk/gsk/vulkan/gskvulkanrenderpass.c
Benjamin Otte 3aa3816125 gsk: Add GskStrokeNode 
Take a rendernode as source and a GskPath and GskStroke,
and fill the area that is covered when stroking the path
with the given stroke parameters, like cairo_stroke() would.
2023-08-07 13:02:57 -04:00

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#include "config.h"
#include "gskvulkanrenderpassprivate.h"
#include "gskdebugprivate.h"
#include "gskprofilerprivate.h"
#include "gskrendernodeprivate.h"
#include "gskrenderer.h"
#include "gskrendererprivate.h"
#include "gskroundedrectprivate.h"
#include "gsktransform.h"
#include "gskvulkanblendmodeopprivate.h"
#include "gskvulkanbluropprivate.h"
#include "gskvulkanborderopprivate.h"
#include "gskvulkanclearopprivate.h"
#include "gskvulkanclipprivate.h"
#include "gskvulkancolormatrixopprivate.h"
#include "gskvulkancoloropprivate.h"
#include "gskvulkanconvertopprivate.h"
#include "gskvulkancrossfadeopprivate.h"
#include "gskvulkanglyphopprivate.h"
#include "gskvulkaninsetshadowopprivate.h"
#include "gskvulkanlineargradientopprivate.h"
#include "gskvulkanmaskopprivate.h"
#include "gskvulkanopprivate.h"
#include "gskvulkanprivate.h"
#include "gskvulkanrendererprivate.h"
#include "gskvulkanimageprivate.h"
#include "gskvulkanrenderpassopprivate.h"
#include "gskvulkanoutsetshadowopprivate.h"
#include "gskvulkanpushconstantsopprivate.h"
#include "gskvulkanscissoropprivate.h"
#include "gskvulkantextureopprivate.h"
#include "gskvulkanuploadopprivate.h"
#include "gskprivate.h"
#include "gdk/gdkvulkancontextprivate.h"
#define ORTHO_NEAR_PLANE -10000
#define ORTHO_FAR_PLANE 10000
typedef struct _GskVulkanParseState GskVulkanParseState;
struct _GskVulkanRenderPass
{
int empty;
};
struct _GskVulkanParseState
{
cairo_rectangle_int_t scissor;
graphene_point_t offset;
graphene_vec2_t scale;
GskTransform *modelview;
graphene_matrix_t projection;
GskVulkanClip clip;
};
GskVulkanRenderPass *
gsk_vulkan_render_pass_new (void)
{
GskVulkanRenderPass *self;
self = g_new0 (GskVulkanRenderPass, 1);
return self;
}
void
gsk_vulkan_render_pass_free (GskVulkanRenderPass *self)
{
g_free (self);
}
static void
gsk_vulkan_render_pass_append_scissor (GskVulkanRender *render,
GskRenderNode *node,
const GskVulkanParseState *state)
{
gsk_vulkan_scissor_op (render, &state->scissor);
}
static void
gsk_vulkan_render_pass_append_push_constants (GskVulkanRender *render,
GskRenderNode *node,
const GskVulkanParseState *state)
{
graphene_matrix_t mvp;
if (state->modelview)
{
gsk_transform_to_matrix (state->modelview, &mvp);
graphene_matrix_multiply (&mvp, &state->projection, &mvp);
}
else
graphene_matrix_init_from_matrix (&mvp, &state->projection);
gsk_vulkan_push_constants_op (render, &state->scale, &mvp, &state->clip.rect);
}
#define FALLBACK(...) G_STMT_START { \
GSK_RENDERER_DEBUG (gsk_vulkan_render_get_renderer (render), FALLBACK, __VA_ARGS__); \
return FALSE; \
}G_STMT_END
static gboolean
gsk_vulkan_parse_rect_is_integer (const GskVulkanParseState *state,
const graphene_rect_t *rect,
cairo_rectangle_int_t *int_rect)
{
graphene_rect_t transformed_rect;
float scale_x = graphene_vec2_get_x (&state->scale);
float scale_y = graphene_vec2_get_y (&state->scale);
switch (gsk_transform_get_category (state->modelview))
{
case GSK_TRANSFORM_CATEGORY_UNKNOWN:
case GSK_TRANSFORM_CATEGORY_ANY:
case GSK_TRANSFORM_CATEGORY_3D:
case GSK_TRANSFORM_CATEGORY_2D:
return FALSE;
case GSK_TRANSFORM_CATEGORY_2D_AFFINE:
case GSK_TRANSFORM_CATEGORY_2D_TRANSLATE:
gsk_transform_transform_bounds (state->modelview, rect, &transformed_rect);
rect = &transformed_rect;
break;
case GSK_TRANSFORM_CATEGORY_IDENTITY:
default:
break;
}
int_rect->x = rect->origin.x * scale_x;
int_rect->y = rect->origin.y * scale_y;
int_rect->width = rect->size.width * scale_x;
int_rect->height = rect->size.height * scale_y;
return int_rect->x == rect->origin.x * scale_x
&& int_rect->y == rect->origin.y * scale_y
&& int_rect->width == rect->size.width * scale_x
&& int_rect->height == rect->size.height * scale_y;
}
static GskVulkanImage *
gsk_vulkan_render_pass_upload_texture (GskVulkanRender *render,
GdkTexture *texture)
{
GskVulkanImage *image, *better_image;
int width, height;
GskVulkanImagePostprocess postproc;
graphene_matrix_t projection;
graphene_vec2_t scale;
image = gsk_vulkan_upload_texture_op (render, texture);
postproc = gsk_vulkan_image_get_postprocess (image);
if (postproc == 0)
return image;
width = gdk_texture_get_width (texture);
height = gdk_texture_get_height (texture);
better_image = gsk_vulkan_image_new_for_offscreen (gsk_vulkan_render_get_context (render),
gdk_texture_get_format (texture),
width, height);
gsk_vulkan_render_pass_begin_op (render,
better_image,
&(cairo_rectangle_int_t) { 0, 0, width, height },
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
gsk_vulkan_scissor_op (render, &(cairo_rectangle_int_t) { 0, 0, width, height });
graphene_matrix_init_ortho (&projection,
0, width,
0, height,
2 * ORTHO_NEAR_PLANE - ORTHO_FAR_PLANE,
ORTHO_FAR_PLANE);
graphene_vec2_init (&scale, 1.0, 1.0);
gsk_vulkan_push_constants_op (render, &scale, &projection, &GSK_ROUNDED_RECT_INIT(0, 0, width, height));
gsk_vulkan_convert_op (render,
GSK_VULKAN_SHADER_CLIP_NONE,
image,
&GRAPHENE_RECT_INIT (0, 0, width, height),
&GRAPHENE_POINT_INIT (0, 0),
&GRAPHENE_RECT_INIT (0, 0, width, height));
gsk_vulkan_render_pass_end_op (render,
better_image,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
g_object_unref (better_image);
return better_image;
}
static GskVulkanImage *
gsk_vulkan_render_pass_get_node_as_image (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node,
graphene_rect_t *tex_bounds)
{
GskVulkanImage *result;
switch ((guint) gsk_render_node_get_node_type (node))
{
case GSK_TEXTURE_NODE:
{
GdkTexture *texture = gsk_texture_node_get_texture (node);
GskVulkanRenderer *renderer = GSK_VULKAN_RENDERER (gsk_vulkan_render_get_renderer (render));
result = gsk_vulkan_renderer_get_texture_image (renderer, texture);
if (result == NULL)
{
result = gsk_vulkan_render_pass_upload_texture (render, texture);
gsk_vulkan_renderer_add_texture_image (renderer, texture, result);
}
*tex_bounds = node->bounds;
return result;
}
case GSK_CAIRO_NODE:
{
graphene_rect_t clipped;
graphene_rect_offset_r (&state->clip.rect.bounds, - state->offset.x, - state->offset.y, &clipped);
graphene_rect_intersection (&clipped, &node->bounds, &clipped);
if (clipped.size.width == 0 || clipped.size.height == 0)
return NULL;
result = gsk_vulkan_upload_cairo_op (render,
node,
&state->scale,
&clipped);
*tex_bounds = clipped;
return result;
}
default:
{
graphene_rect_t clipped;
graphene_rect_offset_r (&state->clip.rect.bounds, - state->offset.x, - state->offset.y, &clipped);
graphene_rect_intersection (&clipped, &node->bounds, &clipped);
if (clipped.size.width == 0 || clipped.size.height == 0)
return NULL;
/* assuming the unclipped bounds should go to texture coordinates 0..1,
* calculate the coordinates for the clipped texture size
*/
*tex_bounds = clipped;
result = gsk_vulkan_render_pass_op_offscreen (render,
&state->scale,
&clipped,
node);
return result;
}
}
}
static void
gsk_vulkan_render_pass_add_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node);
static inline gboolean
gsk_vulkan_render_pass_add_fallback_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
graphene_rect_t clipped;
graphene_rect_offset_r (&state->clip.rect.bounds, - state->offset.x, - state->offset.y, &clipped);
graphene_rect_intersection (&clipped, &node->bounds, &clipped);
if (clipped.size.width == 0 || clipped.size.height == 0)
return TRUE;
image = gsk_vulkan_upload_cairo_op (render,
node,
&state->scale,
&clipped);
gsk_vulkan_texture_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
GSK_VULKAN_SAMPLER_DEFAULT,
&node->bounds,
&state->offset,
&clipped);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_implode (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
g_assert_not_reached ();
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_container_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
for (guint i = 0; i < gsk_container_node_get_n_children (node); i++)
gsk_vulkan_render_pass_add_node (self, render, state, gsk_container_node_get_child (node, i));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_cairo_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
/* We're using recording surfaces, so drawing them to an image
* surface and uploading them is the right thing.
* But that's exactly what the fallback code does.
*/
if (gsk_cairo_node_get_surface (node) != NULL)
return gsk_vulkan_render_pass_add_fallback_node (self, render, state, node);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_color_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
cairo_rectangle_int_t int_clipped;
graphene_rect_t rect, clipped;
const GdkRGBA *color;
color = gsk_color_node_get_color (node);
graphene_rect_offset_r (&node->bounds,
state->offset.x, state->offset.y,
&rect);
graphene_rect_intersection (&state->clip.rect.bounds, &rect, &clipped);
if (gdk_rgba_is_opaque (color) &&
node->bounds.size.width * node->bounds.size.height > 100 * 100 && /* not worth the effort for small images */
gsk_vulkan_parse_rect_is_integer (state, &clipped, &int_clipped))
{
/* now handle all the clip */
if (!gdk_rectangle_intersect (&int_clipped, &state->scissor, &int_clipped))
return TRUE;
/* we have handled the bounds, now do the corners */
if (state->clip.type == GSK_VULKAN_CLIP_ROUNDED)
{
graphene_rect_t cover;
GskVulkanShaderClip shader_clip;
float scale_x = graphene_vec2_get_x (&state->scale);
float scale_y = graphene_vec2_get_y (&state->scale);
clipped = GRAPHENE_RECT_INIT (int_clipped.x / scale_x, int_clipped.y / scale_y,
int_clipped.width / scale_x, int_clipped.height / scale_y);
shader_clip = gsk_vulkan_clip_get_shader_clip (&state->clip, graphene_point_zero(), &clipped);
if (shader_clip != GSK_VULKAN_SHADER_CLIP_NONE)
{
gsk_rounded_rect_get_largest_cover (&state->clip.rect, &clipped, &cover);
int_clipped.x = ceil (cover.origin.x * scale_x);
int_clipped.y = ceil (cover.origin.y * scale_y);
int_clipped.width = floor ((cover.origin.x + cover.size.width) * scale_x) - int_clipped.x;
int_clipped.height = floor ((cover.origin.y + cover.size.height) * scale_y) - int_clipped.y;
if (int_clipped.width == 0 || int_clipped.height == 0)
{
gsk_vulkan_color_op (render,
shader_clip,
&clipped,
graphene_point_zero (),
color);
return TRUE;
}
cover = GRAPHENE_RECT_INIT (int_clipped.x / scale_x, int_clipped.y / scale_y,
int_clipped.width / scale_x, int_clipped.height / scale_y);
if (clipped.origin.x != cover.origin.x)
gsk_vulkan_color_op (render,
shader_clip,
&GRAPHENE_RECT_INIT (clipped.origin.x, clipped.origin.y, cover.origin.x - clipped.origin.x, clipped.size.height),
graphene_point_zero (),
color);
if (clipped.origin.y != cover.origin.y)
gsk_vulkan_color_op (render,
shader_clip,
&GRAPHENE_RECT_INIT (clipped.origin.x, clipped.origin.y, clipped.size.width, cover.origin.y - clipped.origin.y),
graphene_point_zero (),
color);
if (clipped.origin.x + clipped.size.width != cover.origin.x + cover.size.width)
gsk_vulkan_color_op (render,
shader_clip,
&GRAPHENE_RECT_INIT (cover.origin.x + cover.size.width,
clipped.origin.y,
clipped.origin.x + clipped.size.width - cover.origin.x - cover.size.width,
clipped.size.height),
graphene_point_zero (),
color);
if (clipped.origin.y + clipped.size.height != cover.origin.y + cover.size.height)
gsk_vulkan_color_op (render,
shader_clip,
&GRAPHENE_RECT_INIT (clipped.origin.x,
cover.origin.y + cover.size.height,
clipped.size.width,
clipped.origin.y + clipped.size.height - cover.origin.y - cover.size.height),
graphene_point_zero (),
color);
}
}
gsk_vulkan_clear_op (render,
&int_clipped,
color);
return TRUE;
}
gsk_vulkan_color_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
&rect,
graphene_point_zero (),
color);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_linear_gradient_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
gsk_vulkan_linear_gradient_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
&node->bounds,
&state->offset,
gsk_linear_gradient_node_get_start (node),
gsk_linear_gradient_node_get_end (node),
gsk_render_node_get_node_type (node) == GSK_REPEATING_LINEAR_GRADIENT_NODE,
gsk_linear_gradient_node_get_color_stops (node, NULL),
gsk_linear_gradient_node_get_n_color_stops (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_border_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
gsk_vulkan_border_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
gsk_border_node_get_outline (node),
&state->offset,
gsk_border_node_get_widths (node),
gsk_border_node_get_colors (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_texture_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
GskVulkanRenderer *renderer;
GdkTexture *texture;
renderer = GSK_VULKAN_RENDERER (gsk_vulkan_render_get_renderer (render));
texture = gsk_texture_node_get_texture (node);
image = gsk_vulkan_renderer_get_texture_image (renderer, texture);
if (image == NULL)
{
image = gsk_vulkan_render_pass_upload_texture (render, texture);
gsk_vulkan_renderer_add_texture_image (renderer, texture, image);
}
gsk_vulkan_texture_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
GSK_VULKAN_SAMPLER_DEFAULT,
&node->bounds,
&state->offset,
&node->bounds);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_texture_scale_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
GskVulkanRenderer *renderer;
GskVulkanRenderSampler sampler;
GdkTexture *texture;
renderer = GSK_VULKAN_RENDERER (gsk_vulkan_render_get_renderer (render));
texture = gsk_texture_scale_node_get_texture (node);
switch (gsk_texture_scale_node_get_filter (node))
{
default:
g_assert_not_reached ();
case GSK_SCALING_FILTER_LINEAR:
case GSK_SCALING_FILTER_TRILINEAR:
sampler = GSK_VULKAN_SAMPLER_DEFAULT;
break;
case GSK_SCALING_FILTER_NEAREST:
sampler = GSK_VULKAN_SAMPLER_NEAREST;
break;
}
image = gsk_vulkan_renderer_get_texture_image (renderer, texture);
if (image == NULL)
{
image = gsk_vulkan_render_pass_upload_texture (render, texture);
gsk_vulkan_renderer_add_texture_image (renderer, texture, image);
}
gsk_vulkan_texture_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
sampler,
&node->bounds,
&state->offset,
&node->bounds);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_inset_shadow_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
if (gsk_inset_shadow_node_get_blur_radius (node) > 0)
FALLBACK ("Blur support not implemented for inset shadows");
gsk_vulkan_inset_shadow_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
gsk_inset_shadow_node_get_outline (node),
&state->offset,
gsk_inset_shadow_node_get_color (node),
&GRAPHENE_POINT_INIT (gsk_inset_shadow_node_get_dx (node),
gsk_inset_shadow_node_get_dy (node)),
gsk_inset_shadow_node_get_spread (node),
gsk_inset_shadow_node_get_blur_radius (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_outset_shadow_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
if (gsk_outset_shadow_node_get_blur_radius (node) > 0)
FALLBACK ("Blur support not implemented for outset shadows");
gsk_vulkan_outset_shadow_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
gsk_outset_shadow_node_get_outline (node),
&state->offset,
gsk_outset_shadow_node_get_color (node),
&GRAPHENE_POINT_INIT (gsk_outset_shadow_node_get_dx (node),
gsk_outset_shadow_node_get_dy (node)),
gsk_outset_shadow_node_get_spread (node),
gsk_outset_shadow_node_get_blur_radius (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_transform_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskRenderNode *child;
GskTransform *transform;
GskVulkanParseState new_state;
child = gsk_transform_node_get_child (node);
transform = gsk_transform_node_get_transform (node);
switch (gsk_transform_get_category (transform))
{
case GSK_TRANSFORM_CATEGORY_IDENTITY:
case GSK_TRANSFORM_CATEGORY_2D_TRANSLATE:
{
float dx, dy;
gsk_transform_to_translate (transform, &dx, &dy);
new_state = *state;
new_state.offset.x += dx;
new_state.offset.y += dy;
gsk_vulkan_render_pass_add_node (self, render, &new_state, child);
}
return TRUE;
case GSK_TRANSFORM_CATEGORY_2D_AFFINE:
{
float dx, dy, scale_x, scale_y;
gsk_transform_to_affine (transform, &scale_x, &scale_y, &dx, &dy);
gsk_vulkan_clip_scale (&new_state.clip, &state->clip, scale_x, scale_y);
new_state.offset.x = (state->offset.x + dx) / scale_x;
new_state.offset.y = (state->offset.y + dy) / scale_y;
graphene_vec2_init (&new_state.scale, fabs (scale_x), fabs (scale_y));
graphene_vec2_multiply (&new_state.scale, &state->scale, &new_state.scale);
new_state.modelview = gsk_transform_scale (gsk_transform_ref (state->modelview),
scale_x / fabs (scale_x),
scale_y / fabs (scale_y));
}
break;
case GSK_TRANSFORM_CATEGORY_2D:
{
float skew_x, skew_y, scale_x, scale_y, angle, dx, dy;
GskTransform *clip_transform;
clip_transform = gsk_transform_transform (gsk_transform_translate (NULL, &state->offset), transform);
if (gsk_vulkan_clip_contains_rect (&state->clip, &state->offset, &node->bounds))
{
gsk_vulkan_clip_init_empty (&new_state.clip, &child->bounds);
}
else if (!gsk_vulkan_clip_transform (&new_state.clip, &state->clip, clip_transform, &child->bounds))
{
gsk_transform_unref (clip_transform);
FALLBACK ("Transform nodes can't deal with clip type %u", state->clip.type);
}
new_state.modelview = gsk_transform_ref (state->modelview);
new_state.modelview = gsk_transform_scale (state->modelview,
graphene_vec2_get_x (&state->scale),
graphene_vec2_get_y (&state->scale));
new_state.modelview = gsk_transform_transform (new_state.modelview, clip_transform);
gsk_transform_unref (clip_transform);
gsk_transform_to_2d_components (new_state.modelview,
&skew_x, &skew_y,
&scale_x, &scale_y,
&angle,
&dx, &dy);
scale_x = fabs (scale_x);
scale_y = fabs (scale_y);
new_state.modelview = gsk_transform_scale (new_state.modelview, 1 / scale_x, 1 / scale_y);
graphene_vec2_init (&new_state.scale, scale_x, scale_y);
new_state.offset = *graphene_point_zero ();
}
break;
case GSK_TRANSFORM_CATEGORY_UNKNOWN:
case GSK_TRANSFORM_CATEGORY_ANY:
case GSK_TRANSFORM_CATEGORY_3D:
{
graphene_quaternion_t rotation;
graphene_matrix_t matrix;
graphene_vec4_t perspective;
graphene_vec3_t translation;
graphene_vec3_t matrix_scale;
graphene_vec3_t shear;
GskTransform *clip_transform;
float scale_x, scale_y, old_pixels, new_pixels;
clip_transform = gsk_transform_transform (gsk_transform_translate (NULL, &state->offset), transform);
if (gsk_vulkan_clip_contains_rect (&state->clip, &state->offset, &node->bounds))
{
gsk_vulkan_clip_init_empty (&new_state.clip, &child->bounds);
}
else if (!gsk_vulkan_clip_transform (&new_state.clip, &state->clip, clip_transform, &child->bounds))
{
gsk_transform_unref (clip_transform);
FALLBACK ("Transform nodes can't deal with clip type %u", state->clip.type);
}
new_state.modelview = gsk_transform_ref (state->modelview);
new_state.modelview = gsk_transform_scale (state->modelview,
graphene_vec2_get_x (&state->scale),
graphene_vec2_get_y (&state->scale));
new_state.modelview = gsk_transform_transform (new_state.modelview, clip_transform);
gsk_transform_unref (clip_transform);
gsk_transform_to_matrix (new_state.modelview, &matrix);
graphene_matrix_decompose (&matrix,
&translation,
&matrix_scale,
&rotation,
&shear,
&perspective);
scale_x = fabs (graphene_vec3_get_x (&matrix_scale));
scale_y = fabs (graphene_vec3_get_y (&matrix_scale));
old_pixels = graphene_vec2_get_x (&state->scale) * graphene_vec2_get_y (&state->scale) *
state->clip.rect.bounds.size.width * state->clip.rect.bounds.size.height;
new_pixels = scale_x * scale_y * new_state.clip.rect.bounds.size.width * new_state.clip.rect.bounds.size.height;
if (new_pixels > 2 * old_pixels)
{
float forced_downscale = 2 * old_pixels / new_pixels;
scale_x *= forced_downscale;
scale_y *= forced_downscale;
}
new_state.modelview = gsk_transform_scale (new_state.modelview, 1 / scale_x, 1 / scale_y);
graphene_vec2_init (&new_state.scale, scale_x, scale_y);
new_state.offset = *graphene_point_zero ();
}
break;
default:
break;
}
new_state.scissor = state->scissor;
graphene_matrix_init_from_matrix (&new_state.projection, &state->projection);
gsk_vulkan_render_pass_append_push_constants (render, node, &new_state);
gsk_vulkan_render_pass_add_node (self, render, &new_state, child);
gsk_vulkan_render_pass_append_push_constants (render, node, state);
gsk_transform_unref (new_state.modelview);
return TRUE;
}
static gboolean
gsk_vulkan_render_pass_add_opacity_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
graphene_rect_t tex_rect;
image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
gsk_opacity_node_get_child (node),
&tex_rect);
if (image == NULL)
return TRUE;
gsk_vulkan_color_matrix_op_opacity (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
&node->bounds,
&state->offset,
&tex_rect,
gsk_opacity_node_get_opacity (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_color_matrix_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
graphene_rect_t tex_rect;
image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
gsk_color_matrix_node_get_child (node),
&tex_rect);
if (image == NULL)
return TRUE;
gsk_vulkan_color_matrix_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
&node->bounds,
&state->offset,
&tex_rect,
gsk_color_matrix_node_get_color_matrix (node),
gsk_color_matrix_node_get_color_offset (node));
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_clip_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanParseState new_state;
graphene_rect_t clip;
gboolean do_push_constants, do_scissor;
graphene_rect_offset_r (gsk_clip_node_get_clip (node),
state->offset.x, state->offset.y,
&clip);
/* Check if we can use scissoring for the clip */
if (gsk_vulkan_parse_rect_is_integer (state, &clip, &new_state.scissor))
{
if (!gdk_rectangle_intersect (&new_state.scissor, &state->scissor, &new_state.scissor))
return TRUE;
if (gsk_vulkan_clip_intersect_rect (&new_state.clip, &state->clip, &clip))
{
if (new_state.clip.type == GSK_VULKAN_CLIP_RECT)
new_state.clip.type = GSK_VULKAN_CLIP_NONE;
do_push_constants = TRUE;
}
else
{
gsk_vulkan_clip_init_copy (&new_state.clip, &state->clip);
do_push_constants = FALSE;
}
do_scissor = TRUE;
}
else
{
if (!gsk_vulkan_clip_intersect_rect (&new_state.clip, &state->clip, &clip))
FALLBACK ("Failed to find intersection between clip of type %u and rectangle", state->clip.type);
new_state.scissor = state->scissor;
do_push_constants = TRUE;
do_scissor = FALSE;
}
if (new_state.clip.type == GSK_VULKAN_CLIP_ALL_CLIPPED)
return TRUE;
new_state.offset = state->offset;
graphene_vec2_init_from_vec2 (&new_state.scale, &state->scale);
new_state.modelview = state->modelview;
graphene_matrix_init_from_matrix (&new_state.projection, &state->projection);
if (do_scissor)
gsk_vulkan_render_pass_append_scissor (render, node, &new_state);
if (do_push_constants)
gsk_vulkan_render_pass_append_push_constants (render, node, &new_state);
gsk_vulkan_render_pass_add_node (self, render, &new_state, gsk_clip_node_get_child (node));
if (do_push_constants)
gsk_vulkan_render_pass_append_push_constants (render, node, state);
if (do_scissor)
gsk_vulkan_render_pass_append_scissor (render, node, state);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_rounded_clip_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanParseState new_state;
GskRoundedRect clip;
clip = *gsk_rounded_clip_node_get_clip (node);
gsk_rounded_rect_offset (&clip, state->offset.x, state->offset.y);
if (!gsk_vulkan_clip_intersect_rounded_rect (&new_state.clip, &state->clip, &clip))
FALLBACK ("Failed to find intersection between clip of type %u and rounded rectangle", state->clip.type);
if (new_state.clip.type == GSK_VULKAN_CLIP_ALL_CLIPPED)
return TRUE;
new_state.scissor = state->scissor;
new_state.offset = state->offset;
graphene_vec2_init_from_vec2 (&new_state.scale, &state->scale);
new_state.modelview = state->modelview;
graphene_matrix_init_from_matrix (&new_state.projection, &state->projection);
gsk_vulkan_render_pass_append_push_constants (render, node, &new_state);
gsk_vulkan_render_pass_add_node (self, render, &new_state, gsk_rounded_clip_node_get_child (node));
gsk_vulkan_render_pass_append_push_constants (render, node, state);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_repeat_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
const graphene_rect_t *child_bounds;
GskVulkanImage *image;
child_bounds = gsk_repeat_node_get_child_bounds (node);
if (graphene_rect_get_area (child_bounds) == 0)
return TRUE;
image = gsk_vulkan_render_pass_op_offscreen (render,
&state->scale,
child_bounds,
gsk_repeat_node_get_child (node));
gsk_vulkan_texture_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
GSK_VULKAN_SAMPLER_REPEAT,
&node->bounds,
&state->offset,
child_bounds);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_blend_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskRenderNode *top_child, *bottom_child;
GskVulkanImage *top_image, *bottom_image;
graphene_rect_t top_tex_rect, bottom_tex_rect;
top_child = gsk_blend_node_get_top_child (node);
top_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
top_child,
&top_tex_rect);
bottom_child = gsk_blend_node_get_bottom_child (node);
bottom_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
bottom_child,
&bottom_tex_rect);
if (top_image == NULL)
{
if (bottom_image == NULL)
return TRUE;
top_image = bottom_image;
top_tex_rect = *graphene_rect_zero ();
}
else if (bottom_image == NULL)
{
bottom_image = top_image;
bottom_tex_rect = *graphene_rect_zero ();
}
gsk_vulkan_blend_mode_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
&node->bounds,
&state->offset,
gsk_blend_node_get_blend_mode (node),
top_image,
&top_child->bounds,
&top_tex_rect,
bottom_image,
&bottom_child->bounds,
&bottom_tex_rect);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_cross_fade_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskRenderNode *start_child, *end_child;
GskVulkanImage *start_image, *end_image;
graphene_rect_t start_tex_rect, end_tex_rect;
float progress;
progress = gsk_cross_fade_node_get_progress (node);
start_child = gsk_cross_fade_node_get_start_child (node);
start_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
start_child,
&start_tex_rect);
end_child = gsk_cross_fade_node_get_end_child (node);
end_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
end_child,
&end_tex_rect);
if (start_image == NULL)
{
if (end_image == NULL)
return TRUE;
gsk_vulkan_color_matrix_op_opacity (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &end_child->bounds),
end_image,
&node->bounds,
&state->offset,
&end_tex_rect,
progress);
return TRUE;
}
else if (end_image == NULL)
{
gsk_vulkan_color_matrix_op_opacity (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &start_child->bounds),
start_image,
&node->bounds,
&state->offset,
&start_tex_rect,
1.0f - progress);
return TRUE;
}
gsk_vulkan_cross_fade_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
&node->bounds,
&state->offset,
progress,
start_image,
&start_child->bounds,
&start_tex_rect,
end_image,
&end_child->bounds,
&end_tex_rect);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_text_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
const PangoGlyphInfo *glyphs;
GskVulkanGlyphCache *cache;
const graphene_point_t *node_offset;
const PangoFont *font;
guint num_glyphs;
int x_position;
int i;
float scale;
cache = gsk_vulkan_renderer_get_glyph_cache (GSK_VULKAN_RENDERER (gsk_vulkan_render_get_renderer (render)));
num_glyphs = gsk_text_node_get_num_glyphs (node);
glyphs = gsk_text_node_get_glyphs (node, NULL);
font = gsk_text_node_get_font (node);
scale = MAX (graphene_vec2_get_x (&state->scale), graphene_vec2_get_y (&state->scale));
node_offset = gsk_text_node_get_offset (node);
x_position = 0;
for (i = 0; i < num_glyphs; i++)
{
GskVulkanCachedGlyph *glyph;
const PangoGlyphInfo *gi = &glyphs[i];
graphene_rect_t glyph_bounds, glyph_tex_rect;
glyph = gsk_vulkan_glyph_cache_lookup (cache,
render,
(PangoFont *)font,
gi->glyph,
x_position + gi->geometry.x_offset,
gi->geometry.y_offset,
scale);
glyph_bounds = GRAPHENE_RECT_INIT (glyph->draw_x + node_offset->x + (float) (x_position + gi->geometry.x_offset) / PANGO_SCALE,
glyph->draw_y + node_offset->y + (float) (gi->geometry.y_offset) / PANGO_SCALE,
glyph->draw_width,
glyph->draw_height);
graphene_rect_init (&glyph_tex_rect,
glyph_bounds.origin.x - glyph->draw_width * glyph->tx / glyph->tw,
glyph_bounds.origin.y - glyph->draw_height * glyph->ty / glyph->th,
glyph->draw_width / glyph->tw,
glyph->draw_height / glyph->th);
if (gsk_text_node_has_color_glyphs (node))
gsk_vulkan_texture_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &glyph_bounds),
glyph->atlas_image,
GSK_VULKAN_SAMPLER_DEFAULT,
&glyph_bounds,
&state->offset,
&glyph_tex_rect);
else
gsk_vulkan_glyph_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &glyph_bounds),
glyph->atlas_image,
&glyph_bounds,
&state->offset,
&glyph_tex_rect,
gsk_text_node_get_color (node));
x_position += gi->geometry.width;
}
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_blur_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *image;
graphene_rect_t tex_rect;
float radius;
radius = gsk_blur_node_get_radius (node);
if (radius == 0)
{
gsk_vulkan_render_pass_add_node (self, render, state, gsk_blur_node_get_child (node));
return TRUE;
}
image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
gsk_blur_node_get_child (node),
&tex_rect);
if (image == NULL)
return TRUE;
gsk_vulkan_blur_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
image,
&node->bounds,
&state->offset,
&tex_rect,
radius);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_mask_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanImage *source_image, *mask_image;
graphene_rect_t source_tex_rect, mask_tex_rect;
GskRenderNode *source, *mask;
GskMaskMode mode;
mode = gsk_mask_node_get_mask_mode (node);
source = gsk_mask_node_get_source (node);
mask = gsk_mask_node_get_mask (node);
mask_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
mask,
&mask_tex_rect);
if (mask_image == NULL)
{
if (mode == GSK_MASK_MODE_INVERTED_ALPHA)
gsk_vulkan_render_pass_add_node (self, render, state, source);
return TRUE;
}
/* Use the glyph shader as an optimization */
if (mode == GSK_MASK_MODE_ALPHA &&
gsk_render_node_get_node_type (source) == GSK_COLOR_NODE)
{
graphene_rect_t bounds;
if (graphene_rect_intersection (&source->bounds, &mask->bounds, &bounds))
gsk_vulkan_glyph_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &bounds),
mask_image,
&bounds,
&state->offset,
&mask_tex_rect,
gsk_color_node_get_color (source));
return TRUE;
}
source_image = gsk_vulkan_render_pass_get_node_as_image (self,
render,
state,
source,
&source_tex_rect);
if (source_image == NULL)
return TRUE;
gsk_vulkan_mask_op (render,
gsk_vulkan_clip_get_shader_clip (&state->clip, &state->offset, &node->bounds),
&state->offset,
source_image,
&source->bounds,
&source_tex_rect,
mask_image,
&mask->bounds,
&mask_tex_rect,
mode);
return TRUE;
}
static inline gboolean
gsk_vulkan_render_pass_add_debug_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
gsk_vulkan_render_pass_add_node (self, render, state, gsk_debug_node_get_child (node));
return TRUE;
}
#undef FALLBACK
typedef gboolean (*GskVulkanRenderPassNodeFunc) (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node);
/* TODO: implement remaining nodes */
static const GskVulkanRenderPassNodeFunc nodes_vtable[] = {
[GSK_NOT_A_RENDER_NODE] = gsk_vulkan_render_pass_implode,
[GSK_CONTAINER_NODE] = gsk_vulkan_render_pass_add_container_node,
[GSK_CAIRO_NODE] = gsk_vulkan_render_pass_add_cairo_node,
[GSK_COLOR_NODE] = gsk_vulkan_render_pass_add_color_node,
[GSK_LINEAR_GRADIENT_NODE] = gsk_vulkan_render_pass_add_linear_gradient_node,
[GSK_REPEATING_LINEAR_GRADIENT_NODE] = gsk_vulkan_render_pass_add_linear_gradient_node,
[GSK_RADIAL_GRADIENT_NODE] = NULL,
[GSK_REPEATING_RADIAL_GRADIENT_NODE] = NULL,
[GSK_CONIC_GRADIENT_NODE] = NULL,
[GSK_BORDER_NODE] = gsk_vulkan_render_pass_add_border_node,
[GSK_TEXTURE_NODE] = gsk_vulkan_render_pass_add_texture_node,
[GSK_INSET_SHADOW_NODE] = gsk_vulkan_render_pass_add_inset_shadow_node,
[GSK_OUTSET_SHADOW_NODE] = gsk_vulkan_render_pass_add_outset_shadow_node,
[GSK_TRANSFORM_NODE] = gsk_vulkan_render_pass_add_transform_node,
[GSK_OPACITY_NODE] = gsk_vulkan_render_pass_add_opacity_node,
[GSK_COLOR_MATRIX_NODE] = gsk_vulkan_render_pass_add_color_matrix_node,
[GSK_REPEAT_NODE] = gsk_vulkan_render_pass_add_repeat_node,
[GSK_CLIP_NODE] = gsk_vulkan_render_pass_add_clip_node,
[GSK_ROUNDED_CLIP_NODE] = gsk_vulkan_render_pass_add_rounded_clip_node,
[GSK_SHADOW_NODE] = NULL,
[GSK_BLEND_NODE] = gsk_vulkan_render_pass_add_blend_node,
[GSK_CROSS_FADE_NODE] = gsk_vulkan_render_pass_add_cross_fade_node,
[GSK_TEXT_NODE] = gsk_vulkan_render_pass_add_text_node,
[GSK_BLUR_NODE] = gsk_vulkan_render_pass_add_blur_node,
[GSK_DEBUG_NODE] = gsk_vulkan_render_pass_add_debug_node,
[GSK_GL_SHADER_NODE] = NULL,
[GSK_TEXTURE_SCALE_NODE] = gsk_vulkan_render_pass_add_texture_scale_node,
[GSK_MASK_NODE] = gsk_vulkan_render_pass_add_mask_node,
[GSK_FILL_NODE] = NULL,
[GSK_STROKE_NODE] = NULL,
};
static void
gsk_vulkan_render_pass_add_node (GskVulkanRenderPass *self,
GskVulkanRender *render,
const GskVulkanParseState *state,
GskRenderNode *node)
{
GskVulkanRenderPassNodeFunc node_func;
GskRenderNodeType node_type;
gboolean fallback = FALSE;
/* This catches the corner cases of empty nodes, so after this check
* there's quaranteed to be at least 1 pixel that needs to be drawn */
if (!gsk_vulkan_clip_may_intersect_rect (&state->clip, &state->offset, &node->bounds))
return;
node_type = gsk_render_node_get_node_type (node);
if (node_type < G_N_ELEMENTS (nodes_vtable))
node_func = nodes_vtable[node_type];
else
node_func = NULL;
if (node_func)
{
if (!node_func (self, render, state, node))
fallback = TRUE;
}
else
{
GSK_RENDERER_DEBUG (gsk_vulkan_render_get_renderer (render),
FALLBACK, "Unsupported node '%s'",
g_type_name_from_instance ((GTypeInstance *) node));
fallback = TRUE;
}
if (fallback)
gsk_vulkan_render_pass_add_fallback_node (self, render, state, node);
}
void
gsk_vulkan_render_pass_add (GskVulkanRenderPass *self,
GskVulkanRender *render,
int width,
int height,
cairo_rectangle_int_t *clip,
GskRenderNode *node,
const graphene_rect_t *viewport)
{
GskVulkanParseState state;
state.scissor = *clip;
gsk_vulkan_clip_init_empty (&state.clip, &GRAPHENE_RECT_INIT (0, 0, viewport->size.width, viewport->size.height));
state.modelview = NULL;
graphene_matrix_init_ortho (&state.projection,
0, width,
0, height,
2 * ORTHO_NEAR_PLANE - ORTHO_FAR_PLANE,
ORTHO_FAR_PLANE);
graphene_vec2_init (&state.scale, width / viewport->size.width,
height / viewport->size.height);
state.offset = GRAPHENE_POINT_INIT (-viewport->origin.x,
-viewport->origin.y);
gsk_vulkan_render_pass_append_scissor (render, node, &state);
gsk_vulkan_render_pass_append_push_constants (render, node, &state);
gsk_vulkan_render_pass_add_node (self, render, &state, node);
}
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