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#include "config.h"
#include "gskvulkancolortextpipelineprivate.h"
struct _GskVulkanColorTextPipeline
{
GObject parent_instance;
};
typedef struct _GskVulkanColorTextInstance GskVulkanColorTextInstance;
struct _GskVulkanColorTextInstance
{
float rect[4];
float tex_rect[4];
};
G_DEFINE_TYPE (GskVulkanColorTextPipeline, gsk_vulkan_color_text_pipeline, GSK_TYPE_VULKAN_PIPELINE)
static const VkPipelineVertexInputStateCreateInfo *
gsk_vulkan_color_text_pipeline_get_input_state_create_info (GskVulkanPipeline *self)
{
static const VkVertexInputBindingDescription vertexBindingDescriptions[] = {
{
.binding = 0,
.stride = sizeof (GskVulkanColorTextInstance),
.inputRate = VK_VERTEX_INPUT_RATE_INSTANCE
}
};
static const VkVertexInputAttributeDescription vertexInputAttributeDescription[] = {
{
.location = 0,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanColorTextInstance, rect),
},
{
.location = 1,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanColorTextInstance, tex_rect),
},
};
static const VkPipelineVertexInputStateCreateInfo info = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
.vertexBindingDescriptionCount = G_N_ELEMENTS (vertexBindingDescriptions),
.pVertexBindingDescriptions = vertexBindingDescriptions,
.vertexAttributeDescriptionCount = G_N_ELEMENTS (vertexInputAttributeDescription),
.pVertexAttributeDescriptions = vertexInputAttributeDescription
};
return &info;
}
static void
gsk_vulkan_color_text_pipeline_finalize (GObject *gobject)
{
//GskVulkanColorTextPipeline *self = GSK_VULKAN_COLOR_TEXT_PIPELINE (gobject);
G_OBJECT_CLASS (gsk_vulkan_color_text_pipeline_parent_class)->finalize (gobject);
}
static void
gsk_vulkan_color_text_pipeline_class_init (GskVulkanColorTextPipelineClass *klass)
{
GskVulkanPipelineClass *pipeline_class = GSK_VULKAN_PIPELINE_CLASS (klass);
G_OBJECT_CLASS (klass)->finalize = gsk_vulkan_color_text_pipeline_finalize;
pipeline_class->get_input_state_create_info = gsk_vulkan_color_text_pipeline_get_input_state_create_info;
}
static void
gsk_vulkan_color_text_pipeline_init (GskVulkanColorTextPipeline *self)
{
}
GskVulkanPipeline *
gsk_vulkan_color_text_pipeline_new (GdkVulkanContext *context,
VkPipelineLayout layout,
const char *shader_name,
VkRenderPass render_pass)
{
return gsk_vulkan_pipeline_new (GSK_TYPE_VULKAN_COLOR_TEXT_PIPELINE, context, layout, shader_name, render_pass);
}
gsize
gsk_vulkan_color_text_pipeline_count_vertex_data (GskVulkanColorTextPipeline *pipeline,
int num_instances)
{
return sizeof (GskVulkanColorTextInstance) * num_instances;
}
void
gsk_vulkan_color_text_pipeline_collect_vertex_data (GskVulkanColorTextPipeline *pipeline,
guchar *data,
GskVulkanRenderer *renderer,
const graphene_rect_t *rect,
PangoFont *font,
guint total_glyphs,
const PangoGlyphInfo *glyphs,
const graphene_point_t *offset,
guint start_glyph,
guint num_glyphs,
float scale)
{
GskVulkanColorTextInstance *instances = (GskVulkanColorTextInstance *) data;
int i;
int count = 0;
int x_position = 0;
for (i = 0; i < start_glyph; i++)
x_position += glyphs[i].geometry.width;
for (; i < total_glyphs && count < num_glyphs; i++)
{
const PangoGlyphInfo *gi = &glyphs[i];
if (gi->glyph != PANGO_GLYPH_EMPTY)
{
double cx = (x_position + gi->geometry.x_offset) / PANGO_SCALE;
double cy = gi->geometry.y_offset / PANGO_SCALE;
GskVulkanColorTextInstance *instance = &instances[count];
GskVulkanCachedGlyph *glyph;
glyph = gsk_vulkan_renderer_get_cached_glyph (renderer,
font,
gi->glyph,
x_position + gi->geometry.x_offset,
gi->geometry.y_offset,
scale);
instance->rect[0] = offset->x + cx + glyph->draw_x;
instance->rect[1] = offset->y + cy + glyph->draw_y;
instance->rect[2] = glyph->draw_width;
instance->rect[3] = glyph->draw_height;
instance->tex_rect[0] = glyph->tx;
instance->tex_rect[1] = glyph->ty;
instance->tex_rect[2] = glyph->tw;
instance->tex_rect[3] = glyph->th;
count++;
}
x_position += gi->geometry.width;
}
}
gsize
gsk_vulkan_color_text_pipeline_draw (GskVulkanColorTextPipeline *pipeline,
VkCommandBuffer command_buffer,
gsize offset,
gsize n_commands)
{
vkCmdDraw (command_buffer,
6, n_commands,
0, offset);
return n_commands;
}
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