Vulkan: dynamically advertise surface formats
Adds dynamic validation of AHardwareBufferFormats and return as
VkSurfaceFormatKHR instead of hardware coded values
Test: verified on Pixel 4 with test app that it returned two pair of surface
formats
Bug: b/143296550
Change-Id: I972ea97d7930be56057c18584e84bf01331ae31f
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index a020e74..aa7c19a 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -694,20 +694,6 @@
const InstanceData& instance_data = GetData(pdev);
- // TODO(b/143296550): Fill out the set of supported formats. Longer term,
- // add a new gralloc method to query whether a (format, usage) pair is
- // supported, and check that for each gralloc format that corresponds to a
- // Vulkan format. Shorter term, just add a few more formats to the ones
- // hardcoded below.
-
- const VkSurfaceFormatKHR kFormats[] = {
- {VK_FORMAT_R8G8B8A8_UNORM, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR},
- {VK_FORMAT_R8G8B8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR},
- {VK_FORMAT_R5G6B5_UNORM_PACK16, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR},
- };
- const uint32_t kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]);
- uint32_t total_num_formats = kNumFormats;
-
bool wide_color_support = false;
Surface& surface = *SurfaceFromHandle(surface_handle);
int err = native_window_get_wide_color_support(surface.window.get(),
@@ -720,43 +706,72 @@
wide_color_support &&
instance_data.hook_extensions.test(ProcHook::EXT_swapchain_colorspace);
- const VkSurfaceFormatKHR kWideColorFormats[] = {
- {VK_FORMAT_R8G8B8A8_UNORM,
- VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT},
- {VK_FORMAT_R8G8B8A8_SRGB,
- VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT},
- {VK_FORMAT_R16G16B16A16_SFLOAT,
- VK_COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT},
- {VK_FORMAT_R16G16B16A16_SFLOAT,
- VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT},
- {VK_FORMAT_A2B10G10R10_UNORM_PACK32,
- VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT},
- };
- const uint32_t kNumWideColorFormats =
- sizeof(kWideColorFormats) / sizeof(kWideColorFormats[0]);
+ AHardwareBuffer_Desc desc = {};
+ desc.width = 1;
+ desc.height = 1;
+ desc.layers = 1;
+ desc.usage = surface.consumer_usage |
+ AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE |
+ AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER;
+
+ // We must support R8G8B8A8
+ std::vector<VkSurfaceFormatKHR> all_formats = {
+ {VK_FORMAT_R8G8B8A8_UNORM, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR},
+ {VK_FORMAT_R8G8B8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR}};
+
if (wide_color_support) {
- total_num_formats += kNumWideColorFormats;
+ all_formats.emplace_back(VkSurfaceFormatKHR{
+ VK_FORMAT_R8G8B8A8_UNORM, VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT});
+ all_formats.emplace_back(VkSurfaceFormatKHR{
+ VK_FORMAT_R8G8B8A8_SRGB, VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT});
+ }
+
+ desc.format = AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM;
+ if (AHardwareBuffer_isSupported(&desc)) {
+ all_formats.emplace_back(VkSurfaceFormatKHR{
+ VK_FORMAT_R5G6B5_UNORM_PACK16, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR});
+ }
+
+ desc.format = AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT;
+ if (AHardwareBuffer_isSupported(&desc)) {
+ all_formats.emplace_back(VkSurfaceFormatKHR{
+ VK_FORMAT_R16G16B16A16_SFLOAT, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR});
+ if (wide_color_support) {
+ all_formats.emplace_back(
+ VkSurfaceFormatKHR{VK_FORMAT_R16G16B16A16_SFLOAT,
+ VK_COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT});
+ all_formats.emplace_back(
+ VkSurfaceFormatKHR{VK_FORMAT_R16G16B16A16_SFLOAT,
+ VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT});
+ }
+ }
+
+ desc.format = AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM;
+ if (AHardwareBuffer_isSupported(&desc)) {
+ all_formats.emplace_back(
+ VkSurfaceFormatKHR{VK_FORMAT_A2B10G10R10_UNORM_PACK32,
+ VK_COLOR_SPACE_SRGB_NONLINEAR_KHR});
+ if (wide_color_support) {
+ all_formats.emplace_back(
+ VkSurfaceFormatKHR{VK_FORMAT_A2B10G10R10_UNORM_PACK32,
+ VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT});
+ }
}
VkResult result = VK_SUCCESS;
if (formats) {
- uint32_t out_count = 0;
- uint32_t transfer_count = 0;
- if (*count < total_num_formats)
+ uint32_t transfer_count = all_formats.size();
+ if (transfer_count > *count) {
+ transfer_count = *count;
result = VK_INCOMPLETE;
- transfer_count = std::min(*count, kNumFormats);
- std::copy(kFormats, kFormats + transfer_count, formats);
- out_count += transfer_count;
- if (wide_color_support) {
- transfer_count = std::min(*count - out_count, kNumWideColorFormats);
- std::copy(kWideColorFormats, kWideColorFormats + transfer_count,
- formats + out_count);
- out_count += transfer_count;
}
- *count = out_count;
+ std::copy(all_formats.begin(), all_formats.begin() + transfer_count,
+ formats);
+ *count = transfer_count;
} else {
- *count = total_num_formats;
+ *count = all_formats.size();
}
+
return result;
}