mirror of
https://github.com/libretro/RetroArch.git
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7b711214a7
Adds support for sub-frame shaders to vulkan/glcore/dx10-11-12. Builds on the concept already present for frame duplication in use for BFI, to present multiple 'sub' frames per real frame to the shaders, so they can run at a higher framerate than the content framerate. Must be enabled via subframe shaders setting under synchronization settings to be active. Will allow BFI to be implemented inside of the shaders, among any other use for the higher framerate shader authors can devise. CurrentSubFrame and TotalSubFrames have been available inside the shaders to track what they want to do on an given subframe. TotalSubFrames will always be 1 when the setting is disabled (and when in menu/ff/pause). Framecount will not increment on sub-frames, as it does not for injected bfi frames now. Should not interfere with any existing shaders that do not check for subframes.
158 lines
4.8 KiB
C
158 lines
4.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2016 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SHADER_VULKAN_H
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#define SHADER_VULKAN_H
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#include <stdint.h>
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#include <stddef.h>
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#include <boolean.h>
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#include <retro_common_api.h>
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#include "glslang_util.h"
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#include "../include/vulkan/vulkan.h"
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RETRO_BEGIN_DECLS
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typedef struct vulkan_filter_chain vulkan_filter_chain_t;
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struct vulkan_filter_chain_texture
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{
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VkImage image;
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VkImageView view;
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VkImageLayout layout;
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unsigned width;
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unsigned height;
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VkFormat format;
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};
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struct vulkan_filter_chain_pass_info
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{
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/* Maximum number of mip-levels to use. */
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unsigned max_levels;
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float scale_x;
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float scale_y;
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/* Ignored for the last pass, swapchain info
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* will be used instead. */
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VkFormat rt_format;
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/* For the last pass, make sure VIEWPORT scale
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* with scale factors of 1 are used. */
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enum glslang_filter_chain_scale scale_type_x;
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enum glslang_filter_chain_scale scale_type_y;
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/* The filter to use for source in this pass. */
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enum glslang_filter_chain_filter source_filter;
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enum glslang_filter_chain_filter mip_filter;
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enum glslang_filter_chain_address address;
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};
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struct vulkan_filter_chain_swapchain_info
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{
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VkViewport viewport;
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VkFormat format;
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VkRenderPass render_pass;
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unsigned num_indices;
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};
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struct vulkan_filter_chain_create_info
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{
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VkDevice device;
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VkPhysicalDevice gpu;
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const VkPhysicalDeviceMemoryProperties *memory_properties;
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VkPipelineCache pipeline_cache;
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VkQueue queue;
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VkCommandPool command_pool;
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unsigned num_passes;
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VkFormat original_format;
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struct
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{
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unsigned width, height;
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} max_input_size;
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struct vulkan_filter_chain_swapchain_info swapchain;
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};
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vulkan_filter_chain_t *vulkan_filter_chain_new(
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const struct vulkan_filter_chain_create_info *info);
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void vulkan_filter_chain_free(vulkan_filter_chain_t *chain);
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void vulkan_filter_chain_set_shader(vulkan_filter_chain_t *chain,
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unsigned pass,
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VkShaderStageFlags stage,
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const uint32_t *spirv,
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size_t spirv_words);
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VkFormat vulkan_filter_chain_get_pass_rt_format(
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vulkan_filter_chain_t *chain,
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unsigned pass);
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bool vulkan_filter_chain_update_swapchain_info(vulkan_filter_chain_t *chain,
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const struct vulkan_filter_chain_swapchain_info *info);
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void vulkan_filter_chain_notify_sync_index(vulkan_filter_chain_t *chain,
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unsigned index);
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bool vulkan_filter_chain_init(vulkan_filter_chain_t *chain);
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void vulkan_filter_chain_set_input_texture(vulkan_filter_chain_t *chain,
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const struct vulkan_filter_chain_texture *texture);
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void vulkan_filter_chain_set_frame_count(vulkan_filter_chain_t *chain,
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uint64_t count);
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void vulkan_filter_chain_set_frame_count_period(vulkan_filter_chain_t *chain,
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unsigned pass,
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unsigned period);
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void vulkan_filter_chain_set_shader_subframes(vulkan_filter_chain_t *chain,
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uint32_t tot_subframes);
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void vulkan_filter_chain_set_current_shader_subframe(vulkan_filter_chain_t *chain,
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uint32_t cur_subframe);
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void vulkan_filter_chain_set_frame_direction(vulkan_filter_chain_t *chain,
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int32_t direction);
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void vulkan_filter_chain_set_rotation(vulkan_filter_chain_t *chain,
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uint32_t rot);
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void vulkan_filter_chain_build_offscreen_passes(vulkan_filter_chain_t *chain,
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VkCommandBuffer cmd, const VkViewport *vp);
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void vulkan_filter_chain_build_viewport_pass(vulkan_filter_chain_t *chain,
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VkCommandBuffer cmd, const VkViewport *vp, const float *mvp);
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void vulkan_filter_chain_end_frame(vulkan_filter_chain_t *chain,
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VkCommandBuffer cmd);
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vulkan_filter_chain_t *vulkan_filter_chain_create_default(
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const struct vulkan_filter_chain_create_info *info,
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enum glslang_filter_chain_filter filter);
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vulkan_filter_chain_t *vulkan_filter_chain_create_from_preset(
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const struct vulkan_filter_chain_create_info *info,
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const char *path, enum glslang_filter_chain_filter filter);
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struct video_shader *vulkan_filter_chain_get_preset(
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vulkan_filter_chain_t *chain);
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bool vulkan_filter_chain_emits_hdr10(vulkan_filter_chain_t *chain);
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RETRO_END_DECLS
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#endif
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