radv: add initial non-conformant radv vulkan driver

This squashes all the radv development up until now into
one for merging.

History can be found:
https://github.com/airlied/mesa/tree/semi-interesting

This requires llvm 3.9 and is in no way considered
a conformant vulkan implementation. It can run a number
of vulkan applications, and supports all GPUs using
the amdgpu kernel driver.

Thanks to Intel for providing anv and spirv->nir,
and Emil Velikov for reviewing build integration.

Parts of this are:
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>

Authors: Bas Nieuwenhuizen and Dave Airlie
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 449 insertions, 0 deletions

diff --git a/src/amd/vulkan/vk_format.h b/src/amd/vulkan/vk_format.h
new file mode 100644
index 0000000..e0087f1
--- /dev/null
+++ b/src/amd/vulkan/vk_format.h
@@ -0,0 +1,449 @@
+/*
+ * Copyright © 2016 Red Hat.
+ * Copyright © 2016 Bas Nieuwenhuizen
+ *
+ * Based on u_format.h which is:
+ * Copyright 2009-2010 Vmware, Inc.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <assert.h>
+#include <vulkan/vulkan.h>
+enum vk_format_layout {
+	/**
+	 * Formats with vk_format_block::width == vk_format_block::height == 1
+	 * that can be described as an ordinary data structure.
+	 */
+	VK_FORMAT_LAYOUT_PLAIN = 0,
+
+	/**
+	 * Formats with sub-sampled channels.
+	 *
+	 * This is for formats like YVYU where there is less than one sample per
+	 * pixel.
+	 */
+	VK_FORMAT_LAYOUT_SUBSAMPLED = 3,
+
+	/**
+	 * S3 Texture Compression formats.
+	 */
+	VK_FORMAT_LAYOUT_S3TC = 4,
+
+	/**
+	 * Red-Green Texture Compression formats.
+	 */
+	VK_FORMAT_LAYOUT_RGTC = 5,
+
+	/**
+	 * Ericsson Texture Compression
+	 */
+	VK_FORMAT_LAYOUT_ETC = 6,
+
+	/**
+	 * BC6/7 Texture Compression
+	 */
+	VK_FORMAT_LAYOUT_BPTC = 7,
+
+	/**
+	 * ASTC
+	 */
+	VK_FORMAT_LAYOUT_ASTC = 8,
+
+	/**
+	 * Everything else that doesn't fit in any of the above layouts.
+	 */
+	VK_FORMAT_LAYOUT_OTHER = 9
+};
+
+struct vk_format_block
+{
+	/** Block width in pixels */
+	unsigned width;
+
+	/** Block height in pixels */
+	unsigned height;
+
+	/** Block size in bits */
+	unsigned bits;
+};
+
+enum vk_format_type {
+	VK_FORMAT_TYPE_VOID = 0,
+	VK_FORMAT_TYPE_UNSIGNED = 1,
+	VK_FORMAT_TYPE_SIGNED = 2,
+	VK_FORMAT_TYPE_FIXED = 3,
+	VK_FORMAT_TYPE_FLOAT = 4
+};
+
+
+enum vk_format_colorspace {
+	VK_FORMAT_COLORSPACE_RGB = 0,
+	VK_FORMAT_COLORSPACE_SRGB = 1,
+	VK_FORMAT_COLORSPACE_YUV = 2,
+	VK_FORMAT_COLORSPACE_ZS = 3
+};
+
+struct vk_format_channel_description {
+	unsigned type:5;
+	unsigned normalized:1;
+	unsigned pure_integer:1;
+	unsigned scaled:1;
+	unsigned size:8;
+	unsigned shift:16;
+};
+
+struct vk_format_description
+{
+	VkFormat format;
+	const char *name;
+	const char *short_name;
+
+	struct vk_format_block block;
+	enum vk_format_layout layout;
+
+	unsigned nr_channels:3;
+	unsigned is_array:1;
+	unsigned is_bitmask:1;
+	unsigned is_mixed:1;
+
+	struct vk_format_channel_description channel[4];
+
+	unsigned char swizzle[4];
+
+	enum vk_format_colorspace colorspace;
+};
+
+extern const struct vk_format_description vk_format_description_table[];
+
+const struct vk_format_description *vk_format_description(VkFormat format);
+
+/**
+ * Return total bits needed for the pixel format per block.
+ */
+static inline uint
+vk_format_get_blocksizebits(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return 0;
+	}
+
+	return desc->block.bits;
+}
+
+/**
+ * Return bytes per block (not pixel) for the given format.
+ */
+static inline uint
+vk_format_get_blocksize(VkFormat format)
+{
+	uint bits = vk_format_get_blocksizebits(format);
+	uint bytes = bits / 8;
+
+	assert(bits % 8 == 0);
+	assert(bytes > 0);
+	if (bytes == 0) {
+		bytes = 1;
+	}
+
+	return bytes;
+}
+
+static inline uint
+vk_format_get_blockwidth(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return 1;
+	}
+
+	return desc->block.width;
+}
+
+static inline uint
+vk_format_get_blockheight(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return 1;
+	}
+
+	return desc->block.height;
+}
+
+/**
+ * Return the index of the first non-void channel
+ * -1 if no non-void channels
+ */
+static inline int
+vk_format_get_first_non_void_channel(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+	int i;
+
+	for (i = 0; i < 4; i++)
+		if (desc->channel[i].type != VK_FORMAT_TYPE_VOID)
+			break;
+
+	if (i == 4)
+		return -1;
+
+	return i;
+}
+
+enum vk_swizzle {
+	VK_SWIZZLE_X,
+	VK_SWIZZLE_Y,
+	VK_SWIZZLE_Z,
+	VK_SWIZZLE_W,
+	VK_SWIZZLE_0,
+	VK_SWIZZLE_1,
+	VK_SWIZZLE_NONE,
+	VK_SWIZZLE_MAX, /**< Number of enums counter (must be last) */
+};
+
+static inline VkImageAspectFlags
+vk_format_aspects(VkFormat format)
+{
+	switch (format) {
+	case VK_FORMAT_UNDEFINED:
+		return 0;
+
+	case VK_FORMAT_S8_UINT:
+		return VK_IMAGE_ASPECT_STENCIL_BIT;
+
+	case VK_FORMAT_D16_UNORM_S8_UINT:
+	case VK_FORMAT_D24_UNORM_S8_UINT:
+	case VK_FORMAT_D32_SFLOAT_S8_UINT:
+		return VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
+
+	case VK_FORMAT_D16_UNORM:
+	case VK_FORMAT_X8_D24_UNORM_PACK32:
+	case VK_FORMAT_D32_SFLOAT:
+		return VK_IMAGE_ASPECT_DEPTH_BIT;
+
+	default:
+		return VK_IMAGE_ASPECT_COLOR_BIT;
+	}
+}
+
+static inline enum vk_swizzle
+radv_swizzle_conv(int idx, const unsigned char chan[4], VkComponentSwizzle vk_swiz)
+{
+	int x;
+	switch (vk_swiz) {
+	case VK_COMPONENT_SWIZZLE_IDENTITY:
+		return chan[idx];
+	case VK_COMPONENT_SWIZZLE_ZERO:
+		return VK_SWIZZLE_0;
+	case VK_COMPONENT_SWIZZLE_ONE:
+		return VK_SWIZZLE_1;
+	case VK_COMPONENT_SWIZZLE_R:
+		for (x = 0; x < 4; x++)
+			if (chan[x] == 0)
+				return x;
+		return VK_SWIZZLE_0;
+	case VK_COMPONENT_SWIZZLE_G:
+		for (x = 0; x < 4; x++)
+			if (chan[x] == 1)
+				return x;
+		return VK_SWIZZLE_0;
+	case VK_COMPONENT_SWIZZLE_B:
+		for (x = 0; x < 4; x++)
+			if (chan[x] == 2)
+				return x;
+		return VK_SWIZZLE_0;
+	case VK_COMPONENT_SWIZZLE_A:
+		for (x = 0; x < 4; x++)
+			if (chan[x] == 3)
+				return x;
+		return VK_SWIZZLE_1;
+	default:
+		return chan[idx];
+	}
+}
+
+static inline void vk_format_compose_swizzles(const VkComponentMapping *mapping,
+					      const unsigned char swz[4],
+					      enum vk_swizzle dst[4])
+{
+	dst[0] = radv_swizzle_conv(0, swz, mapping->r);
+	dst[1] = radv_swizzle_conv(1, swz, mapping->g);
+	dst[2] = radv_swizzle_conv(2, swz, mapping->b);
+	dst[3] = radv_swizzle_conv(3, swz, mapping->a);
+}
+
+static inline bool
+vk_format_is_compressed(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return false;
+	}
+
+	switch (desc->layout) {
+	case VK_FORMAT_LAYOUT_S3TC:
+	case VK_FORMAT_LAYOUT_RGTC:
+	case VK_FORMAT_LAYOUT_ETC:
+	case VK_FORMAT_LAYOUT_BPTC:
+	case VK_FORMAT_LAYOUT_ASTC:
+		/* XXX add other formats in the future */
+		return true;
+	default:
+		return false;
+	}
+}
+
+static inline bool
+vk_format_has_depth(const struct vk_format_description *desc)
+{
+	return desc->colorspace == VK_FORMAT_COLORSPACE_ZS &&
+		desc->swizzle[0] != VK_SWIZZLE_NONE;
+}
+
+static inline bool
+vk_format_has_stencil(const struct vk_format_description *desc)
+{
+	return desc->colorspace == VK_FORMAT_COLORSPACE_ZS &&
+		desc->swizzle[1] != VK_SWIZZLE_NONE;
+}
+
+static inline bool
+vk_format_is_depth_or_stencil(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return false;
+	}
+
+	return vk_format_has_depth(desc) ||
+		vk_format_has_stencil(desc);
+}
+
+static inline bool
+vk_format_is_depth(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+
+	assert(desc);
+	if (!desc) {
+		return false;
+	}
+
+	return vk_format_has_depth(desc);
+}
+
+static inline bool
+vk_format_is_color(VkFormat format)
+{
+	return !vk_format_is_depth_or_stencil(format);
+}
+
+static inline VkFormat
+vk_format_depth_only(VkFormat format)
+{
+	switch (format) {
+	case VK_FORMAT_D16_UNORM_S8_UINT:
+		return VK_FORMAT_D16_UNORM;
+	case VK_FORMAT_D24_UNORM_S8_UINT:
+		return VK_FORMAT_X8_D24_UNORM_PACK32;
+	case VK_FORMAT_D32_SFLOAT_S8_UINT:
+		return VK_FORMAT_D32_SFLOAT;
+	default:
+		return format;
+	}
+}
+
+static inline bool
+vk_format_is_int(VkFormat format)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+	int channel =  vk_format_get_first_non_void_channel(format);
+
+	return channel >= 0 && desc->channel[channel].pure_integer;
+}
+
+static inline VkFormat
+vk_format_stencil_only(VkFormat format)
+{
+	return VK_FORMAT_S8_UINT;
+}
+
+static inline uint
+vk_format_get_component_bits(VkFormat format,
+			     enum vk_format_colorspace colorspace,
+			     uint component)
+{
+	const struct vk_format_description *desc = vk_format_description(format);
+	enum vk_format_colorspace desc_colorspace;
+
+	assert(format);
+	if (!format) {
+		return 0;
+	}
+
+	assert(component < 4);
+
+	/* Treat RGB and SRGB as equivalent. */
+	if (colorspace == VK_FORMAT_COLORSPACE_SRGB) {
+		colorspace = VK_FORMAT_COLORSPACE_RGB;
+	}
+	if (desc->colorspace == VK_FORMAT_COLORSPACE_SRGB) {
+		desc_colorspace = VK_FORMAT_COLORSPACE_RGB;
+	} else {
+		desc_colorspace = desc->colorspace;
+	}
+
+	if (desc_colorspace != colorspace) {
+		return 0;
+	}
+
+	switch (desc->swizzle[component]) {
+	case VK_SWIZZLE_X:
+		return desc->channel[0].size;
+	case VK_SWIZZLE_Y:
+		return desc->channel[1].size;
+	case VK_SWIZZLE_Z:
+		return desc->channel[2].size;
+	case VK_SWIZZLE_W:
+		return desc->channel[3].size;
+	default:
+		return 0;
+	}
+}
+#ifdef __cplusplus
+} // extern "C" {
+#endif