quakeforge/libs/video/renderer/vulkan/vulkan_matrices.c
Bill Currie 7995f59a90 [vulkan] Set the 2d near distance to 0
-999999 seems to be a hold-over from the software renderer passed
through both gl renderers. I guess it didn't matter in the gl renderers
due to various draw hacks, but it made quite a difference in vulkan.
Fixes the view model covering the hud.
2021-07-25 14:21:37 +09:00

142 lines
4.4 KiB
C

/*
vid_common_vulkan.c
Common Vulkan video driver functions
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#include "QF/sys.h"
#include "QF/vid.h"
#include "QF/Vulkan/qf_vid.h"
#include "QF/Vulkan/buffer.h"
#include "QF/Vulkan/device.h"
#include "QF/Vulkan/projection.h"
#include "QF/ui/view.h"
#include "r_internal.h"
#include "vid_vulkan.h"
#include "util.h"
#define MAT_SIZE (16 * sizeof (float))
void
Vulkan_DestroyMatrices (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
__auto_type mat = &ctx->matrices;
dfunc->vkUnmapMemory (device->dev, mat->memory);
dfunc->vkFreeMemory (device->dev, mat->memory, 0);
dfunc->vkDestroyBuffer (device->dev, mat->buffer_2d, 0);
dfunc->vkDestroyBuffer (device->dev, mat->buffer_3d, 0);
}
void
Vulkan_CreateMatrices (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
__auto_type mat = &ctx->matrices;
mat->buffer_2d = QFV_CreateBuffer (device, 1 * MAT_SIZE,
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT);
mat->buffer_3d = QFV_CreateBuffer (device, 3 * MAT_SIZE,
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT);
size_t size = 0;
size_t offset;
VkMemoryRequirements req;
dfunc->vkGetBufferMemoryRequirements (device->dev, mat->buffer_2d, &req);
size += req.size;
offset = size;
dfunc->vkGetBufferMemoryRequirements (device->dev, mat->buffer_3d, &req);
offset = (offset + req.alignment - 1) & ~(req.alignment - 1);
size += req.size;
mat->memory = QFV_AllocBufferMemory (device, mat->buffer_2d,
VK_MEMORY_PROPERTY_HOST_CACHED_BIT,
size, 0);
QFV_BindBufferMemory (device, mat->buffer_2d, mat->memory, 0);
QFV_BindBufferMemory (device, mat->buffer_3d, mat->memory, offset);
void *data;
dfunc->vkMapMemory (device->dev, mat->memory, 0, size, 0, &data);
mat->projection_2d = data;
mat->projection_3d = (vec4f_t *) ((byte *) mat->projection_2d + offset);
mat->view_3d = mat->projection_3d + 4;
mat->sky_3d = mat->view_3d + 4;
}
void
Vulkan_CalcProjectionMatrices (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
__auto_type mat = &ctx->matrices;
int width = vid.conview->xlen;
int height = vid.conview->ylen;
QFV_Orthographic (mat->projection_2d, 0, width, 0, height, 0, 99999);
float aspect = (float) r_refdef.vrect.width / r_refdef.vrect.height;
QFV_Perspective (mat->projection_3d, r_refdef.fov_y, aspect);
#if 0
Sys_MaskPrintf (SYS_vulkan, "ortho:\n");
Sys_MaskPrintf (SYS_vulkan, " [[%g, %g, %g, %g],\n",
QuatExpand (mat->projection_2d + 0));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g],\n",
QuatExpand (mat->projection_2d + 4));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g],\n",
QuatExpand (mat->projection_2d + 8));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g]]\n",
QuatExpand (mat->projection_2d + 12));
Sys_MaskPrintf (SYS_vulkan, "presp:\n");
Sys_MaskPrintf (SYS_vulkan, " [[%g, %g, %g, %g],\n",
QuatExpand (mat->projection_3d + 0));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g],\n",
QuatExpand (mat->projection_3d + 4));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g],\n",
QuatExpand (mat->projection_3d + 8));
Sys_MaskPrintf (SYS_vulkan, " [%g, %g, %g, %g]]\n",
QuatExpand (mat->projection_3d + 12));
#endif
VkMappedMemoryRange ranges[] = {
{ VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, 0, mat->memory, 0, MAT_SIZE },
{ VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, 0, mat->memory,
(mat->projection_3d - mat->projection_2d) * sizeof (float),
MAT_SIZE},
};
dfunc->vkFlushMappedMemoryRanges (device->dev, 2, ranges);
}