Demos: Create demo for VirGL gpu device

This is a simple demo for VirGL, that does the bare minimum required to
create and render a spinning cube (with one color per face).

1 files changed, 210 insertions, 0 deletions

diff --git a/Userland/Demos/VirGLDemo/VirGLProtocol.h b/Userland/Demos/VirGLDemo/VirGLProtocol.h
new file mode 100644
index 0000000000..21d9da96bc
--- /dev/null
+++ b/Userland/Demos/VirGLDemo/VirGLProtocol.h
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2022, Sahan Fernando <sahan.h.fernando@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/DistinctNumeric.h>
+
+TYPEDEF_DISTINCT_ORDERED_ID(u32, ObjectHandle);
+TYPEDEF_DISTINCT_ORDERED_ID(u32, ResourceID);
+
+#define VIRGL_BIND_DEPTH_STENCIL (1 << 0)
+#define VIRGL_BIND_RENDER_TARGET (1 << 1)
+#define VIRGL_BIND_SAMPLER_VIEW (1 << 3)
+#define VIRGL_BIND_VERTEX_BUFFER (1 << 4)
+#define VIRGL_BIND_INDEX_BUFFER (1 << 5)
+#define VIRGL_BIND_CONSTANT_BUFFER (1 << 6)
+#define VIRGL_BIND_DISPLAY_TARGET (1 << 7)
+#define VIRGL_BIND_COMMAND_ARGS (1 << 8)
+#define VIRGL_BIND_STREAM_OUTPUT (1 << 11)
+#define VIRGL_BIND_SHADER_BUFFER (1 << 14)
+#define VIRGL_BIND_QUERY_BUFFER (1 << 15)
+#define VIRGL_BIND_CURSOR (1 << 16)
+#define VIRGL_BIND_CUSTOM (1 << 17)
+#define VIRGL_BIND_SCANOUT (1 << 18)
+#define VIRGL_BIND_STAGING (1 << 19)
+#define VIRGL_BIND_SHARED (1 << 20)
+
+namespace Protocol {
+
+enum class TextureFormat : u32 {
+    // RGBA Formats
+    VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM = 1,
+    VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM = 2,
+    VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM = 3,
+    VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM = 4,
+
+    VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM = 67,
+    VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM = 68,
+
+    VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM = 121,
+    VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134,
+
+    // Stencil-Depth Formats
+    VIRTIO_GPU_FORMAT_Z16_UNORM = 16,
+    VIRTIO_GPU_FORMAT_Z32_UNORM = 17,
+    VIRTIO_GPU_FORMAT_Z32_FLOAT = 18,
+    VIRTIO_GPU_FORMAT_Z24_UNORM_S8_UINT = 19,
+    VIRTIO_GPU_FORMAT_S8_UINT_Z24_UNORM = 20,
+    VIRTIO_GPU_FORMAT_Z24X8_UNORM = 21,
+    VIRTIO_GPU_FORMAT_X8Z24_UNORM = 22,
+    VIRTIO_GPU_FORMAT_S8_UINT = 23,
+    VIRTIO_GPU_FORMAT_Z32_FLOAT_S8X24_UINT = 128,
+    VIRTIO_GPU_FORMAT_X24S8_UINT = 136,
+    VIRTIO_GPU_FORMAT_S8X24_UINT = 137,
+    VIRTIO_GPU_FORMAT_X32_S8X24_UINT = 138,
+
+};
+
+enum class VirGLCommand : u32 {
+    NOP = 0,
+    CREATE_OBJECT = 1,
+    BIND_OBJECT,
+    DESTROY_OBJECT,
+    SET_VIEWPORT_STATE,
+    SET_FRAMEBUFFER_STATE,
+    SET_VERTEX_BUFFERS,
+    CLEAR,
+    DRAW_VBO,
+    RESOURCE_INLINE_WRITE,
+    SET_SAMPLER_VIEWS,
+    SET_INDEX_BUFFER,
+    SET_CONSTANT_BUFFER,
+    SET_STENCIL_REF,
+    SET_BLEND_COLOR,
+    SET_SCISSOR_STATE,
+    BLIT,
+    RESOURCE_COPY_REGION,
+    BIND_SAMPLER_STATES,
+    BEGIN_QUERY,
+    END_QUERY,
+    GET_QUERY_RESULT,
+    SET_POLYGON_STIPPLE,
+    SET_CLIP_STATE,
+    SET_SAMPLE_MASK,
+    SET_STREAMOUT_TARGETS,
+    SET_RENDER_CONDITION,
+    SET_UNIFORM_BUFFER,
+
+    SET_SUB_CTX,
+    CREATE_SUB_CTX,
+    DESTROY_SUB_CTX,
+    BIND_SHADER,
+    SET_TESS_STATE,
+    SET_MIN_SAMPLES,
+    SET_SHADER_BUFFERS,
+    SET_SHADER_IMAGES,
+    MEMORY_BARRIER,
+    LAUNCH_GRID,
+    SET_FRAMEBUFFER_STATE_NO_ATTACH,
+    TEXTURE_BARRIER,
+    SET_ATOMIC_BUFFERS,
+    SET_DBG_FLAGS,
+    GET_QUERY_RESULT_QBO,
+    TRANSFER3D,
+    END_TRANSFERS,
+    COPY_TRANSFER3D,
+    SET_TWEAKS,
+    CLEAR_TEXTURE,
+    PIPE_RESOURCE_CREATE,
+    PIPE_RESOURCE_SET_TYPE,
+    GET_MEMORY_INFO,
+    SEND_STRING_MARKER,
+    MAX_COMMANDS
+};
+
+union ClearType {
+    struct {
+        u32 depth : 1;
+        u32 stencil : 1;
+        u32 color0 : 1;
+        u32 color1 : 1;
+        u32 color2 : 1;
+        u32 color3 : 1;
+        u32 color4 : 1;
+        u32 color5 : 1;
+        u32 color6 : 1;
+        u32 color7 : 1;
+    } flags;
+    u32 value;
+};
+
+enum class ObjectType : u32 {
+    NONE,
+    BLEND,
+    RASTERIZER,
+    DSA,
+    SHADER,
+    VERTEX_ELEMENTS,
+    SAMPLER_VIEW,
+    SAMPLER_STATE,
+    SURFACE,
+    QUERY,
+    STREAMOUT_TARGET,
+    MSAA_SURFACE,
+    MAX_OBJECTS,
+};
+
+enum class PipeTextureTarget : u32 {
+    BUFFER = 0,
+    TEXTURE_1D,
+    TEXTURE_2D,
+    TEXTURE_3D,
+    TEXTURE_CUBE,
+    TEXTURE_RECT,
+    TEXTURE_1D_ARRAY,
+    TEXTURE_2D_ARRAY,
+    TEXTURE_CUBE_ARRAY,
+    MAX
+};
+
+enum class PipePrimitiveTypes : u32 {
+    POINTS = 0,
+    LINES,
+    LINE_LOOP,
+    LINE_STRIP,
+    TRIANGLES,
+    TRIANGLE_STRIP,
+    TRIANGLE_FAN,
+    QUADS,
+    QUAD_STRIP,
+    POLYGON,
+    LINES_ADJACENCY,
+    LINE_STRIP_ADJACENCY,
+    TRIANGLES_ADJACENCY,
+    TRIANGLE_STRIP_ADJACENCY,
+    PATCHES,
+    MAX
+};
+
+}
+
+namespace Gallium {
+
+enum class PipeTextureTarget : u32 {
+    BUFFER,
+    TEXTURE_1D,
+    TEXTURE_2D,
+    TEXTURE_3D,
+    TEXTURE_CUBE,
+    TEXTURE_RECT,
+    TEXTURE_1D_ARRAY,
+    TEXTURE_2D_ARRAY,
+    TEXTURE_CUBE_ARRAY,
+    MAX_TEXTURE_TYPES,
+};
+
+enum class ShaderType : u32 {
+    SHADER_VERTEX = 0,
+    SHADER_FRAGMENT,
+    SHADER_GEOMETRY,
+    SHADER_TESS_CTRL,
+    SHADER_TESS_EVAL,
+    SHADER_COMPUTE,
+    SHADER_TYPES
+};
+
+}