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[vulkan] Make the frames in flight configurable

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This commit is contained in:
Bill Currie 2021-02-05 11:06:18 +09:00
parent 1275067655
commit f633a846a1
2 changed files with 18 additions and 1 deletions
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1
include/QF/Vulkan/cvars.h
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@ -3,5 +3,6 @@
extern struct cvar_s *vulkan_use_validation;
extern struct cvar_s *vulkan_presentation_mode;
extern struct cvar_s *vulkan_frame_count;
#endif//__QF_Vulkan_cvars_h

18
libs/video/renderer/vulkan/vulkan_vid_common.c
View file

@ -78,6 +78,7 @@ static const char quakeforge_pipeline[] =
#include "libs/video/renderer/vulkan/qfpipeline.plc"
;
cvar_t *vulkan_frame_count;
cvar_t *vulkan_presentation_mode;
cvar_t *msaaSamples;
@ -98,6 +99,15 @@ vulkan_presentation_mode_f (cvar_t *var)
}
}
static void
vulkan_frame_count_f (cvar_t *var)
{
if (var->int_val < 1) {
Sys_Printf ("Invalid frame count: %d. Setting to 1\n", var->int_val);
Cvar_Set (var, "1");
}
}
static void
msaaSamples_f (cvar_t *var)
{
@ -125,6 +135,12 @@ Vulkan_Init_Cvars (void)
CVAR_NONE, vulkan_presentation_mode_f,
"desired presentation mode (may fall "
"back to fifo).");
vulkan_frame_count = Cvar_Get ("vulkan_frame_count", "3", CVAR_NONE,
vulkan_frame_count_f,
"Number of frames to render in the"
" background. More frames can increase"
" performance, but at the cost of latency."
" The default of 3 is recommended.");
msaaSamples = Cvar_Get ("msaaSamples", "VK_SAMPLE_COUNT_1_BIT",
CVAR_NONE, msaaSamples_f,
"desired MSAA sample size.");
@ -500,7 +516,7 @@ Vulkan_CreateFramebuffers (vulkan_ctx_t *ctx)
DARRAY_INIT (&ctx->frames, 4);
}
DARRAY_RESIZE (&ctx->frames, 3);//FIXME cvar
DARRAY_RESIZE (&ctx->frames, vulkan_frame_count->int_val);
__auto_type cmdBuffers = QFV_AllocCommandBufferSet (ctx->frames.size,
alloca);