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#include "config.h"
#include "gskvulkanlineargradientpipelineprivate.h"
struct _GskVulkanLinearGradientPipeline
{
GObject parent_instance;
};
typedef struct _GskVulkanLinearGradientInstance GskVulkanLinearGradientInstance;
struct _GskVulkanLinearGradientInstance
{
float rect[4];
float start[2];
float end[2];
gint32 repeating;
gint32 stop_count;
float offsets[GSK_VULKAN_LINEAR_GRADIENT_PIPELINE_MAX_COLOR_STOPS];
float colors[GSK_VULKAN_LINEAR_GRADIENT_PIPELINE_MAX_COLOR_STOPS][4];
};
G_DEFINE_TYPE (GskVulkanLinearGradientPipeline, gsk_vulkan_linear_gradient_pipeline, GSK_TYPE_VULKAN_PIPELINE)
static const VkPipelineVertexInputStateCreateInfo *
gsk_vulkan_linear_gradient_pipeline_get_input_state_create_info (GskVulkanPipeline *self)
{
static const VkVertexInputBindingDescription vertexBindingDescriptions[] = {
{
.binding = 0,
.stride = sizeof (GskVulkanLinearGradientInstance),
.inputRate = VK_VERTEX_INPUT_RATE_INSTANCE
}
};
static const VkVertexInputAttributeDescription vertexInputAttributeDescription[] = {
{
.location = 0,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = 0,
},
{
.location = 1,
.binding = 0,
.format = VK_FORMAT_R32G32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, start),
},
{
.location = 2,
.binding = 0,
.format = VK_FORMAT_R32G32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, end),
},
{
.location = 3,
.binding = 0,
.format = VK_FORMAT_R32_SINT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, repeating),
},
{
.location = 4,
.binding = 0,
.format = VK_FORMAT_R32_SINT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, stop_count),
},
{
.location = 5,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, offsets),
},
{
.location = 6,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, offsets) + sizeof (float) * 4,
},
{
.location = 7,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[0]),
},
{
.location = 8,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[1]),
},
{
.location = 9,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[2]),
},
{
.location = 10,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[3]),
},
{
.location = 11,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[4]),
},
{
.location = 12,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[5]),
},
{
.location = 13,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[6]),
},
{
.location = 14,
.binding = 0,
.format = VK_FORMAT_R32G32B32A32_SFLOAT,
.offset = G_STRUCT_OFFSET (GskVulkanLinearGradientInstance, colors[7]),
}
};
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_linear_gradient_pipeline_finalize (GObject *gobject)
{
//GskVulkanLinearGradientPipeline *self = GSK_VULKAN_LINEAR_GRADIENT_PIPELINE (gobject);
G_OBJECT_CLASS (gsk_vulkan_linear_gradient_pipeline_parent_class)->finalize (gobject);
}
static void
gsk_vulkan_linear_gradient_pipeline_class_init (GskVulkanLinearGradientPipelineClass *klass)
{
GskVulkanPipelineClass *pipeline_class = GSK_VULKAN_PIPELINE_CLASS (klass);
G_OBJECT_CLASS (klass)->finalize = gsk_vulkan_linear_gradient_pipeline_finalize;
pipeline_class->get_input_state_create_info = gsk_vulkan_linear_gradient_pipeline_get_input_state_create_info;
}
static void
gsk_vulkan_linear_gradient_pipeline_init (GskVulkanLinearGradientPipeline *self)
{
}
GskVulkanPipeline *
gsk_vulkan_linear_gradient_pipeline_new (GdkVulkanContext *context,
VkPipelineLayout layout,
const char *shader_name,
VkRenderPass render_pass)
{
return gsk_vulkan_pipeline_new (GSK_TYPE_VULKAN_LINEAR_GRADIENT_PIPELINE, context, layout, shader_name, render_pass);
}
gsize
gsk_vulkan_linear_gradient_pipeline_count_vertex_data (GskVulkanLinearGradientPipeline *pipeline)
{
return sizeof (GskVulkanLinearGradientInstance);
}
void
gsk_vulkan_linear_gradient_pipeline_collect_vertex_data (GskVulkanLinearGradientPipeline *pipeline,
guchar *data,
const graphene_rect_t *rect,
const graphene_point_t *start,
const graphene_point_t *end,
gboolean repeating,
gsize n_stops,
const GskColorStop *stops)
{
GskVulkanLinearGradientInstance *instance = (GskVulkanLinearGradientInstance *) data;
gsize i;
if (n_stops > GSK_VULKAN_LINEAR_GRADIENT_PIPELINE_MAX_COLOR_STOPS)
{
g_warning ("Only %u color stops supported.", GSK_VULKAN_LINEAR_GRADIENT_PIPELINE_MAX_COLOR_STOPS);
n_stops = GSK_VULKAN_LINEAR_GRADIENT_PIPELINE_MAX_COLOR_STOPS;
}
instance->rect[0] = rect->origin.x;
instance->rect[1] = rect->origin.y;
instance->rect[2] = rect->size.width;
instance->rect[3] = rect->size.height;
instance->start[0] = start->x;
instance->start[1] = start->y;
instance->end[0] = end->x;
instance->end[1] = end->y;
instance->repeating = repeating;
instance->stop_count = n_stops;
for (i = 0; i < n_stops; i++)
{
instance->offsets[i] = stops[i].offset;
instance->colors[i][0] = stops[i].color.red;
instance->colors[i][1] = stops[i].color.green;
instance->colors[i][2] = stops[i].color.blue;
instance->colors[i][3] = stops[i].color.alpha;
}
}
gsize
gsk_vulkan_linear_gradient_pipeline_draw (GskVulkanLinearGradientPipeline *pipeline,
VkCommandBuffer command_buffer,
gsize offset,
gsize n_commands)
{
vkCmdDraw (command_buffer,
6, n_commands,
0, offset);
return n_commands;
}
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