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(Breaking) Backends: Vulkan: redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. (WIP) (#914)

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This commit is contained in:
yaz0r
2025-09-09 00:21:45 -07:00
committed by ocornut
parent a5fd597be3
commit 0453ae96e8
8 changed files with 223 additions and 41 deletions
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196
backends/imgui_impl_vulkan.cpp
View File

@@ -269,7 +269,8 @@ struct ImGui_ImplVulkan_Data
VkDeviceSize BufferMemoryAlignment;
VkDeviceSize NonCoherentAtomSize;
VkPipelineCreateFlags PipelineCreateFlags;
VkDescriptorSetLayout DescriptorSetLayout;
VkDescriptorSetLayout DescriptorSetLayoutTexture;
VkDescriptorSetLayout DescriptorSetLayoutSampler;
VkPipelineLayout PipelineLayout;
VkPipeline Pipeline; // pipeline for main render pass (created by app)
VkShaderModule ShaderModuleVert;
@@ -279,6 +280,9 @@ struct ImGui_ImplVulkan_Data
// Texture management
VkSampler SamplerLinear;
VkSampler SamplerNearest;
VkDescriptorSet SamplerLinearDS;
VkDescriptorSet SamplerNearestDS;
VkCommandPool TexCommandPool;
VkCommandBuffer TexCommandBuffer;
@@ -375,30 +379,34 @@ void main()
*/
static uint32_t __glsl_shader_frag_spv[] =
{
0x07230203,0x00010000,0x00080001,0x0000001e,0x00000000,0x00020011,0x00000001,0x0006000b,
0x07230203,0x00010000,0x0008000b,0x00000023,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010,
0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000,
0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001,
0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000016,0x78655473,0x65727574,
0x00000000,0x00040047,0x00000009,0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e,
0x00000000,0x00040047,0x00000016,0x00000022,0x00000000,0x00040047,0x00000016,0x00000021,
0x00000000,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,
0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040020,0x00000008,0x00000003,
0x00000007,0x0004003b,0x00000008,0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006,
0x00000002,0x0004001e,0x0000000b,0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001,
0x0000000b,0x0004003b,0x0000000c,0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020,
0x00000001,0x0004002b,0x0000000e,0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001,
0x00000007,0x00090019,0x00000013,0x00000006,0x00000001,0x00000000,0x00000000,0x00000000,
0x00000001,0x00000000,0x0003001b,0x00000014,0x00000013,0x00040020,0x00000015,0x00000000,
0x00000014,0x0004003b,0x00000015,0x00000016,0x00000000,0x0004002b,0x0000000e,0x00000018,
0x00000001,0x00040020,0x00000019,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004,
0x00000000,0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d,
0x0000000f,0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000014,0x00000017,
0x00000016,0x00050041,0x00000019,0x0000001a,0x0000000d,0x00000018,0x0004003d,0x0000000a,
0x0000001b,0x0000001a,0x00050057,0x00000007,0x0000001c,0x00000017,0x0000001b,0x00050085,
0x00000007,0x0000001d,0x00000012,0x0000001c,0x0003003e,0x00000009,0x0000001d,0x000100fd,
0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000015,0x7865545f,0x65727574,
0x00000000,0x00050005,0x00000019,0x6d61535f,0x72656c70,0x00000000,0x00040047,0x00000009,
0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e,0x00000000,0x00040047,0x00000015,
0x00000022,0x00000000,0x00040047,0x00000015,0x00000021,0x00000000,0x00040047,0x00000019,
0x00000022,0x00000001,0x00040047,0x00000019,0x00000021,0x00000000,0x00020013,0x00000002,
0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,0x00000020,0x00040017,0x00000007,
0x00000006,0x00000004,0x00040020,0x00000008,0x00000003,0x00000007,0x0004003b,0x00000008,
0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006,0x00000002,0x0004001e,0x0000000b,
0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001,0x0000000b,0x0004003b,0x0000000c,
0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020,0x00000001,0x0004002b,0x0000000e,
0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001,0x00000007,0x00090019,0x00000013,
0x00000006,0x00000001,0x00000000,0x00000000,0x00000000,0x00000001,0x00000000,0x00040020,
0x00000014,0x00000000,0x00000013,0x0004003b,0x00000014,0x00000015,0x00000000,0x0002001a,
0x00000017,0x00040020,0x00000018,0x00000000,0x00000017,0x0004003b,0x00000018,0x00000019,
0x00000000,0x0003001b,0x0000001b,0x00000013,0x0004002b,0x0000000e,0x0000001d,0x00000001,
0x00040020,0x0000001e,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004,0x00000000,
0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d,0x0000000f,
0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000013,0x00000016,0x00000015,
0x0004003d,0x00000017,0x0000001a,0x00000019,0x00050056,0x0000001b,0x0000001c,0x00000016,
0x0000001a,0x00050041,0x0000001e,0x0000001f,0x0000000d,0x0000001d,0x0004003d,0x0000000a,
0x00000020,0x0000001f,0x00050057,0x00000007,0x00000021,0x0000001c,0x00000020,0x00050085,
0x00000007,0x00000022,0x00000012,0x00000021,0x0003003e,0x00000009,0x00000022,0x000100fd,
0x00010038
};
@@ -510,6 +518,9 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
constants[2] = -1.0f - draw_data->DisplayPos.x * constants[0]; // Translate
constants[3] = -1.0f - draw_data->DisplayPos.y * constants[1];
vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 4, constants);
// use linear sampler by default
vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerLinearDS, 0, nullptr);
}
// Render function
@@ -618,6 +629,16 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
pcmd->UserCallback(draw_list, pcmd);
last_desc_set = VK_NULL_HANDLE;
}
/*else if (pcmd->UserCallback == ImDrawCallback_SetSamplerLinear)
{ // Bind Sampler
vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerLinearDS, 0, nullptr);
}
else if (pcmd->UserCallback == ImDrawCallback_SetSamplerNearest)
{
// Bind Sampler
vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerNearestDS, 0, nullptr);
}*/
else
{
// Project scissor/clipping rectangles into framebuffer space
@@ -747,7 +768,7 @@ void ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex)
}
// Create the Descriptor Set
backend_tex->DescriptorSet = ImGui_ImplVulkan_AddTexture(bd->SamplerLinear, backend_tex->ImageView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
backend_tex->DescriptorSet = ImGui_ImplVulkan_AddTexture(backend_tex->ImageView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
// Store identifiers
tex->SetTexID((ImTextureID)backend_tex->DescriptorSet);
@@ -1065,12 +1086,40 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
VkResult err;
if (!bd->DescriptorSetLayout)
ImGui_ImplVulkan_CreateDescriptorSetLayout(&bd->DescriptorSetLayout, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER);
if (!bd->DescriptorSetLayoutTexture)
{
VkDescriptorSetLayoutBinding binding[1] = {};
binding[0].binding = 0;
binding[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
binding[0].descriptorCount = 1;
binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
VkDescriptorSetLayoutCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
info.bindingCount = 1;
info.pBindings = binding;
err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, &bd->DescriptorSetLayoutTexture);
check_vk_result(err);
}
if (!bd->DescriptorSetLayoutSampler)
{
VkDescriptorSetLayoutBinding binding[1] = {};
binding[0].binding = 0;
binding[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
binding[0].descriptorCount = 1;
binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
VkDescriptorSetLayoutCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
info.bindingCount = 1;
info.pBindings = binding;
err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, &bd->DescriptorSetLayoutSampler);
check_vk_result(err);
}
if (v->DescriptorPoolSize != 0)
{
IM_ASSERT(v->DescriptorPoolSize >= IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE);
// TODO: need to account for the samplers too
IM_ASSERT(v->DescriptorPoolSize >= IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE);
VkDescriptorPoolSize pool_size = { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, v->DescriptorPoolSize };
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
@@ -1082,10 +1131,9 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
check_vk_result(err);
}
// Create sampler
// Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
if (!bd->SamplerLinear)
{
// Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
VkSamplerCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
info.magFilter = VK_FILTER_LINEAR;
@@ -1101,6 +1149,87 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
check_vk_result(err);
}
if (!bd->SamplerNearest)
{
VkSamplerCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
info.magFilter = VK_FILTER_NEAREST;
info.minFilter = VK_FILTER_NEAREST;
info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
info.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
info.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
info.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
info.minLod = -1000;
info.maxLod = 1000;
info.maxAnisotropy = 1.0f;
err = vkCreateSampler(v->Device, &info, v->Allocator, &bd->SamplerNearest);
check_vk_result(err);
}
if (!bd->SamplerLinearDS)
{
VkDescriptorPool pool = bd->DescriptorPool ? bd->DescriptorPool : v->DescriptorPool;
// Create Descriptor Set:
VkDescriptorSet descriptor_set;
{
VkDescriptorSetAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = pool;
alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &bd->DescriptorSetLayoutSampler;
VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set);
check_vk_result(err);
}
// Update the Descriptor Set:
{
VkDescriptorImageInfo desc_image[1] = {};
desc_image[0].sampler = bd->SamplerLinear;
VkWriteDescriptorSet sampler_write_desc[1] = {};
sampler_write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
sampler_write_desc[0].dstSet = descriptor_set;
sampler_write_desc[0].descriptorCount = 1;
sampler_write_desc[0].dstBinding = 0;
sampler_write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
sampler_write_desc[0].pImageInfo = desc_image;
vkUpdateDescriptorSets(v->Device, 1, sampler_write_desc, 0, nullptr);
}
bd->SamplerLinearDS = descriptor_set;
}
if (!bd->SamplerNearestDS)
{
VkDescriptorPool pool = bd->DescriptorPool ? bd->DescriptorPool : v->DescriptorPool;
// Create Descriptor Set:
VkDescriptorSet descriptor_set;
{
VkDescriptorSetAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = pool;
alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &bd->DescriptorSetLayoutSampler;
VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set);
check_vk_result(err);
}
// Update the Descriptor Set:
{
VkDescriptorImageInfo desc_image[1] = {};
desc_image[0].sampler = bd->SamplerNearest;
VkWriteDescriptorSet sampler_write_desc[1] = {};
sampler_write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
sampler_write_desc[0].dstSet = descriptor_set;
sampler_write_desc[0].descriptorCount = 1;
sampler_write_desc[0].dstBinding = 0;
sampler_write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
sampler_write_desc[0].pImageInfo = desc_image;
vkUpdateDescriptorSets(v->Device, 1, sampler_write_desc, 0, nullptr);
}
bd->SamplerNearestDS = descriptor_set;
}
if (!bd->PipelineLayout)
{
// Constants: we are using 'vec2 offset' and 'vec2 scale' instead of a full 3d projection matrix
@@ -1108,10 +1237,10 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
push_constants[0].offset = sizeof(float) * 0;
push_constants[0].size = sizeof(float) * 4;
VkDescriptorSetLayout set_layout[1] = { bd->DescriptorSetLayout };
VkDescriptorSetLayout set_layout[2] = { bd->DescriptorSetLayoutTexture, bd->DescriptorSetLayoutSampler };
VkPipelineLayoutCreateInfo layout_info = {};
layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
layout_info.setLayoutCount = 1;
layout_info.setLayoutCount = 2;
layout_info.pSetLayouts = set_layout;
layout_info.pushConstantRangeCount = 1;
layout_info.pPushConstantRanges = push_constants;
@@ -1192,9 +1321,11 @@ void ImGui_ImplVulkan_DestroyDeviceObjects()
if (bd->TexCommandBuffer) { vkFreeCommandBuffers(v->Device, bd->TexCommandPool, 1, &bd->TexCommandBuffer); bd->TexCommandBuffer = VK_NULL_HANDLE; }
if (bd->TexCommandPool) { vkDestroyCommandPool(v->Device, bd->TexCommandPool, v->Allocator); bd->TexCommandPool = VK_NULL_HANDLE; }
if (bd->SamplerLinear) { vkDestroySampler(v->Device, bd->SamplerLinear, v->Allocator); bd->SamplerLinear = VK_NULL_HANDLE; }
if (bd->SamplerNearest) { vkDestroySampler(v->Device, bd->SamplerNearest, v->Allocator); bd->SamplerNearest = VK_NULL_HANDLE; }
if (bd->ShaderModuleVert) { vkDestroyShaderModule(v->Device, bd->ShaderModuleVert, v->Allocator); bd->ShaderModuleVert = VK_NULL_HANDLE; }
if (bd->ShaderModuleFrag) { vkDestroyShaderModule(v->Device, bd->ShaderModuleFrag, v->Allocator); bd->ShaderModuleFrag = VK_NULL_HANDLE; }
if (bd->DescriptorSetLayout) { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayout, v->Allocator); bd->DescriptorSetLayout = VK_NULL_HANDLE; }
if (bd->DescriptorSetLayoutTexture) { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayoutTexture, v->Allocator); bd->DescriptorSetLayoutTexture = VK_NULL_HANDLE; }
if (bd->DescriptorSetLayoutSampler) { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayoutSampler, v->Allocator); bd->DescriptorSetLayoutSampler = VK_NULL_HANDLE; }
if (bd->PipelineLayout) { vkDestroyPipelineLayout(v->Device, bd->PipelineLayout, v->Allocator); bd->PipelineLayout = VK_NULL_HANDLE; }
if (bd->Pipeline) { vkDestroyPipeline(v->Device, bd->Pipeline, v->Allocator); bd->Pipeline = VK_NULL_HANDLE; }
if (bd->DescriptorPool) { vkDestroyDescriptorPool(v->Device, bd->DescriptorPool, v->Allocator); bd->DescriptorPool = VK_NULL_HANDLE; }
@@ -1355,7 +1486,7 @@ void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
// Register a texture by creating a descriptor
// FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem, please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout)
VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkImageView image_view, VkImageLayout image_layout)
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
@@ -1368,7 +1499,7 @@ VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = pool;
alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &bd->DescriptorSetLayout;
alloc_info.pSetLayouts = &bd->DescriptorSetLayoutTexture;
VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set);
check_vk_result(err);
}
@@ -1377,14 +1508,13 @@ VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image
if (descriptor_set != VK_NULL_HANDLE)
{
VkDescriptorImageInfo desc_image[1] = {};
desc_image[0].sampler = sampler;
desc_image[0].imageView = image_view;
desc_image[0].imageLayout = image_layout;
VkWriteDescriptorSet write_desc[1] = {};
write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write_desc[0].dstSet = descriptor_set;
write_desc[0].descriptorCount = 1;
write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
write_desc[0].pImageInfo = desc_image;
vkUpdateDescriptorSets(v->Device, 1, write_desc, 0, nullptr);
}

5
backends/imgui_impl_vulkan.h
View File

@@ -78,7 +78,8 @@
#endif
// Backend uses a small number of descriptors per font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE (8) // Minimum per atlas
#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE (8) // Minimum per atlas
#define IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE (2) // Minimum for linear + nearest
// Specify settings to create pipeline and swapchain
struct ImGui_ImplVulkan_PipelineInfo
@@ -155,7 +156,7 @@ IMGUI_IMPL_API void ImGui_ImplVulkan_UpdateTexture(ImTextureData* te
// Register a texture (VkDescriptorSet == ImTextureID)
// FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem
// Please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
IMGUI_IMPL_API VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout);
IMGUI_IMPL_API VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkImageView image_view, VkImageLayout image_layout);
IMGUI_IMPL_API void ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set);
// Optional: load Vulkan functions with a custom function loader

5
backends/vulkan/glsl_shader.frag
View File

@@ -1,7 +1,8 @@
#version 450 core
layout(location = 0) out vec4 fColor;
layout(set=0, binding=0) uniform sampler2D sTexture;
layout(set=0, binding=0) uniform texture2D _Texture;
layout(set=1, binding=0) uniform sampler _Sampler;
layout(location = 0) in struct {
vec4 Color;
@@ -10,5 +11,5 @@ layout(location = 0) in struct {
void main()
{
fColor = In.Color * texture(sTexture, In.UV.st);
fColor = In.Color * texture(sampler2D(_Texture, _Sampler), In.UV.st);
}

30
backends/vulkan/glsl_shader.frag.u32 Normal file
View File

@@ -0,0 +1,30 @@
// 1112.0.0
0x07230203,0x00010000,0x0008000b,0x00000023,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010,
0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000,
0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001,
0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000015,0x7865545f,0x65727574,
0x00000000,0x00050005,0x00000019,0x6d61535f,0x72656c70,0x00000000,0x00040047,0x00000009,
0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e,0x00000000,0x00040047,0x00000015,
0x00000022,0x00000000,0x00040047,0x00000015,0x00000021,0x00000000,0x00040047,0x00000019,
0x00000022,0x00000001,0x00040047,0x00000019,0x00000021,0x00000000,0x00020013,0x00000002,
0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,0x00000020,0x00040017,0x00000007,
0x00000006,0x00000004,0x00040020,0x00000008,0x00000003,0x00000007,0x0004003b,0x00000008,
0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006,0x00000002,0x0004001e,0x0000000b,
0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001,0x0000000b,0x0004003b,0x0000000c,
0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020,0x00000001,0x0004002b,0x0000000e,
0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001,0x00000007,0x00090019,0x00000013,
0x00000006,0x00000001,0x00000000,0x00000000,0x00000000,0x00000001,0x00000000,0x00040020,
0x00000014,0x00000000,0x00000013,0x0004003b,0x00000014,0x00000015,0x00000000,0x0002001a,
0x00000017,0x00040020,0x00000018,0x00000000,0x00000017,0x0004003b,0x00000018,0x00000019,
0x00000000,0x0003001b,0x0000001b,0x00000013,0x0004002b,0x0000000e,0x0000001d,0x00000001,
0x00040020,0x0000001e,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004,0x00000000,
0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d,0x0000000f,
0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000013,0x00000016,0x00000015,
0x0004003d,0x00000017,0x0000001a,0x00000019,0x00050056,0x0000001b,0x0000001c,0x00000016,
0x0000001a,0x00050041,0x0000001e,0x0000001f,0x0000000d,0x0000001d,0x0004003d,0x0000000a,
0x00000020,0x0000001f,0x00050057,0x00000007,0x00000021,0x0000001c,0x00000020,0x00050085,
0x00000007,0x00000022,0x00000012,0x00000021,0x0003003e,0x00000009,0x00000022,0x000100fd,
0x00010038

3
examples/example_glfw_vulkan/main.cpp
View File

@@ -193,7 +193,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

3
examples/example_sdl2_vulkan/main.cpp
View File

@@ -184,7 +184,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

3
examples/example_sdl3_vulkan/main.cpp
View File

@@ -186,7 +186,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

19
examples/example_win32_vulkan/main.cpp
View File

@@ -182,7 +182,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
@@ -435,6 +436,12 @@ int main(int, char**)
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
//int my_image_width = 0;
//int my_image_height = 0;
//GLuint my_image_texture = 0;
//bool ret = LoadTextureFromFile("../../MyImage01.jpg", &my_image_texture, &my_image_width, &my_image_height);
//IM_ASSERT(ret);
// Main loop
bool done = false;
while (!done)
@@ -457,6 +464,16 @@ int main(int, char**)
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
//ImGui::Begin("SDL_GPU Texture Test");
//ImGui::Text("pointer = %p", &my_texture);
//ImGui::Text("size = %d x %d", my_image_width, my_image_height);
//ImGui::Image((ImTextureID)(intptr_t)my_texture, ImVec2((float)my_image_width * 3, (float)my_image_height * 3));
//ImGui::SameLine();
//ImGui::GetWindowDrawList()->AddCallback(ImDrawCallback_SetSamplerNearest, NULL);
//ImGui::Image((ImTextureID)(intptr_t)my_texture, ImVec2((float)my_image_width * 3, (float)my_image_height * 3));
//ImGui::GetWindowDrawList()->AddCallback(ImDrawCallback_SetSamplerLinear, NULL);
//ImGui::End();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);