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2a0e7f8829
We can now upload vertices. And we use this to draw a yellow background. Which is clearly superior to not drawing anything. Also, we have shaders now. If you modify them, you need glslc installed so they can be recompiled into Spir-V bytecode.
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
#include "config.h"
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#include "gskvulkanshaderprivate.h"
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#include "gskvulkanpipelineprivate.h"
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struct _GskVulkanShader
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{
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GdkVulkanContext *vulkan;
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GskVulkanShaderType type;
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VkShaderModule vk_shader;
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};
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static GskVulkanShader *
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gsk_vulkan_shader_new_from_bytes (GdkVulkanContext *context,
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GskVulkanShaderType type,
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GBytes *bytes,
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GError **error)
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{
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GskVulkanShader *self;
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VkShaderModule shader;
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VkResult res;
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res = GSK_VK_CHECK (vkCreateShaderModule, gdk_vulkan_context_get_device (context),
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&(VkShaderModuleCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
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.codeSize = g_bytes_get_size (bytes),
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.pCode = (uint32_t *) g_bytes_get_data (bytes, NULL),
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},
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NULL,
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&shader);
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if (res != VK_SUCCESS)
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{
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/* Someone invent better error categories plz */
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g_set_error (error, GDK_VULKAN_ERROR, GDK_VULKAN_ERROR_UNSUPPORTED,
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"Could not create shader: %s", gdk_vulkan_strerror (res));
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return NULL;
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}
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self = g_slice_new0 (GskVulkanShader);
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self->vulkan = g_object_ref (context);
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self->type = type;
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self->vk_shader = shader;
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return self;
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}
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GskVulkanShader *
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gsk_vulkan_shader_new_from_resource (GdkVulkanContext *context,
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GskVulkanShaderType type,
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const char *resource_name,
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GError **error)
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{
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GskVulkanShader *self;
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GBytes *bytes;
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GError *local_error = NULL;
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char *path;
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path = g_strconcat ("/org/gtk/libgsk/vulkan/",
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resource_name,
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type == GSK_VULKAN_SHADER_VERTEX ? ".vert.spv" : ".frag.spv",
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NULL);
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bytes = g_resources_lookup_data (path, 0, &local_error);
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g_free (path);
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if (bytes == NULL)
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{
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GSK_NOTE (VULKAN, g_printerr ("Error loading shader data: %s\n", local_error->message));
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g_propagate_error (error, local_error);
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return NULL;
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}
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self = gsk_vulkan_shader_new_from_bytes (context, type, bytes, error);
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g_bytes_unref (bytes);
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return self;
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}
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void
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gsk_vulkan_shader_free (GskVulkanShader *self)
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{
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vkDestroyShaderModule (gdk_vulkan_context_get_device (self->vulkan),
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self->vk_shader,
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NULL);
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g_object_unref (self->vulkan);
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g_slice_free (GskVulkanShader, self);
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}
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GskVulkanShaderType
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gsk_vulkan_shader_get_type (GskVulkanShader *shader)
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{
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return shader->type;
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}
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VkShaderModule
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gsk_vulkan_shader_get_module (GskVulkanShader *shader)
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{
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return shader->vk_shader;
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}
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