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Backends: Vulkan: minor changes.

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ocornut
2026-04-22 14:23:42 +02:00
parent 382b99c334
commit a5fd597be3
1 changed files with 18 additions and 24 deletions
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backends/imgui_impl_vulkan.cpp
+18 -24
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@@ -481,9 +481,7 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
// Bind pipeline:
{
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
}
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
// Bind Vertex And Index Buffer:
if (draw_data->TotalVtxCount > 0)
@@ -495,27 +493,23 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
}
// Setup viewport:
{
VkViewport viewport;
viewport.x = 0;
viewport.y = 0;
viewport.width = (float)fb_width;
viewport.height = (float)fb_height;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(command_buffer, 0, 1, &viewport);
}
VkViewport viewport;
viewport.x = 0;
viewport.y = 0;
viewport.width = (float)fb_width;
viewport.height = (float)fb_height;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(command_buffer, 0, 1, &viewport);
// Setup scale and translation:
// Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
{
float constants[4];
constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
constants[1] = 2.0f / draw_data->DisplaySize.y;
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);
}
float constants[4];
constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
constants[1] = 2.0f / draw_data->DisplaySize.y;
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);
}
// Render function
@@ -589,9 +583,6 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
vkUnmapMemory(v->Device, rb->IndexBufferMemory);
}
// Setup desired Vulkan state
ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height);
// Setup render state structure (for callbacks and custom texture bindings)
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
ImGui_ImplVulkan_RenderState render_state;
@@ -600,6 +591,9 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
render_state.PipelineLayout = bd->PipelineLayout;
platform_io.Renderer_RenderState = &render_state;
// Setup desired Vulkan state
ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)