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quakeforge/libs/video/renderer/vulkan/vulkan_bsp.c
Bill Currie 2acdaa0252 [vulkan] Fix a pile of data upload issues 
Copying data from the wrong buffer was the cause of the corrupted brush
model vertices, and then lots of little errors (mostly forgetting to
multiply by bpp) for textures.
2021-01-21 21:24:54 +09:00

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/*
vulkan_bsp.c
Vulkan bsp
Copyright (C) 2012 Bill Currie <bill@taniwha.org>
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2012/1/7
Date: 2021/1/18
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_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "qfalloca.h"
#include "QF/cvar.h"
#include "QF/darray.h"
#include "QF/dstring.h"
#include "QF/image.h"
#include "QF/render.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "QF/vrect.h"
#include "QF/Vulkan/qf_bsp.h"
#include "QF/Vulkan/qf_lightmap.h"
#include "QF/Vulkan/qf_texture.h"
#include "QF/Vulkan/buffer.h"
#include "QF/Vulkan/command.h"
#include "QF/Vulkan/descriptor.h"
#include "QF/Vulkan/device.h"
#include "QF/Vulkan/scrap.h"
#include "QF/Vulkan/staging.h"
#include "r_internal.h"
#include "vid_vulkan.h"
#include "vkparse.h"
#define ALLOC_CHUNK 64
typedef struct bsppoly_s {
uint32_t count;
uint32_t indices[1];
} bsppoly_t;
#define CHAIN_SURF_F2B(surf,chain) \
do { \
instsurf_t *inst = (surf)->instsurf; \
if (__builtin_expect(!inst, 1)) \
(surf)->tinst = inst = get_instsurf (bctx); \
inst->surface = (surf); \
*(chain##_tail) = inst; \
(chain##_tail) = &inst->tex_chain; \
*(chain##_tail) = 0; \
} while (0)
#define CHAIN_SURF_B2F(surf,chain) \
do { \
instsurf_t *inst = (surf)->instsurf; \
if (__builtin_expect(!inst, 1)) \
(surf)->tinst = inst = get_instsurf (bctx); \
inst->surface = (surf); \
inst->tex_chain = (chain); \
(chain) = inst; \
} while (0)
#define GET_RELEASE(type,name) \
static inline type * \
get_##name (bspctx_t *bctx) \
{ \
type *ele; \
if (!bctx->free_##name##s) { \
int i; \
bctx->free_##name##s = calloc (ALLOC_CHUNK, sizeof (type)); \
for (i = 0; i < ALLOC_CHUNK - 1; i++) \
bctx->free_##name##s[i]._next = &bctx->free_##name##s[i + 1]; \
} \
ele = bctx->free_##name##s; \
bctx->free_##name##s = ele->_next; \
ele->_next = 0; \
*bctx->name##s_tail = ele; \
bctx->name##s_tail = &ele->_next; \
return ele; \
} \
static inline void \
release_##name##s (bspctx_t *bctx) \
{ \
if (bctx->name##s) { \
*bctx->name##s_tail = bctx->free_##name##s; \
bctx->free_##name##s = bctx->name##s; \
bctx->name##s = 0; \
bctx->name##s_tail = &bctx->name##s; \
} \
}
GET_RELEASE (elechain_t, elechain)
GET_RELEASE (elements_t, elements)
GET_RELEASE (instsurf_t, static_instsurf)
GET_RELEASE (instsurf_t, instsurf)
static void
add_texture (texture_t *tx, vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
vulktex_t *tex = tx->render;
DARRAY_APPEND (&bctx->texture_chains, tex);
tex->tex_chain = 0;
tex->tex_chain_tail = &tex->tex_chain;
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
static void
init_surface_chains (model_t *model, vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
int i;
release_static_instsurfs (bctx);
release_instsurfs (bctx);
for (i = 0; i < model->nummodelsurfaces; i++) {
model->surfaces[i].instsurf = get_static_instsurf (bctx);
model->surfaces[i].instsurf->surface = &model->surfaces[i];
}
}
static inline void
clear_tex_chain (vulktex_t *tex)
{
tex->tex_chain = 0;
tex->tex_chain_tail = &tex->tex_chain;
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
static void
clear_texture_chains (bspctx_t *bctx)
{
for (size_t i = 0; i < bctx->texture_chains.size; i++) {
if (!bctx->texture_chains.a[i])
continue;
clear_tex_chain (bctx->texture_chains.a[i]);
}
clear_tex_chain (r_notexture_mip->render);
release_elechains (bctx);
release_elementss (bctx);
release_instsurfs (bctx);
}
void
Vulkan_ClearElements (vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
release_elechains (bctx);
release_elementss (bctx);
}
static void
update_lightmap (msurface_t *surf, vulkan_ctx_t *ctx)
{
int maps;
for (maps = 0; maps < MAXLIGHTMAPS && surf->styles[maps] != 255; maps++)
if (d_lightstylevalue[surf->styles[maps]] != surf->cached_light[maps])
goto dynamic;
if ((surf->dlightframe == r_framecount) || surf->cached_dlight) {
dynamic:
if (r_dynamic->int_val)
Vulkan_BuildLightMap (surf, ctx);
}
}
static inline void
chain_surface (msurface_t *surf, vec_t *transform, float *color,
vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
instsurf_t *is;
if (surf->flags & SURF_DRAWSKY) {
CHAIN_SURF_F2B (surf, bctx->sky_chain);
} else if ((surf->flags & SURF_DRAWTURB) || (color && color[3] < 1.0)) {
CHAIN_SURF_B2F (surf, bctx->waterchain);
} else {
texture_t *tx;
vulktex_t *tex;
if (!surf->texinfo->texture->anim_total)
tx = surf->texinfo->texture;
else
tx = R_TextureAnimation (surf);
tex = tx->render;
CHAIN_SURF_F2B (surf, tex->tex_chain);
update_lightmap (surf, ctx);
}
if (!(is = surf->instsurf))
is = surf->tinst;
is->transform = transform;
is->color = color;
}
static void
register_textures (model_t *model, vulkan_ctx_t *ctx)
{
int i;
texture_t *tex;
for (i = 0; i < model->numtextures; i++) {
tex = model->textures[i];
if (!tex)
continue;
add_texture (tex, ctx);
}
}
static void
clear_textures (vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
bctx->texture_chains.size = 0;
}
void
Vulkan_RegisterTextures (model_t **models, int num_models, vulkan_ctx_t *ctx)
{
int i;
model_t *m;
clear_textures (ctx);
init_surface_chains (r_worldentity.model, ctx);
add_texture (r_notexture_mip, ctx);
register_textures (r_worldentity.model, ctx);
for (i = 0; i < num_models; i++) {
m = models[i];
if (!m)
continue;
// sub-models are done as part of the main model
if (*m->name == '*')
continue;
// world has already been done, not interested in non-brush models
if (m == r_worldentity.model || m->type != mod_brush)
continue;
m->numsubmodels = 1; // no support for submodels in non-world model
register_textures (m, ctx);
}
}
static elechain_t *
add_elechain (vulktex_t *tex, int ec_index, bspctx_t *bctx)
{
elechain_t *ec;
ec = get_elechain (bctx);
ec->elements = get_elements (bctx);
ec->index = ec_index;
ec->transform = 0;
ec->color = 0;
*tex->elechain_tail = ec;
tex->elechain_tail = &ec->next;
return ec;
}
static void
count_verts_inds (model_t **models, msurface_t *fa,
uint32_t *verts, uint32_t *inds)
{
*verts = fa->numedges;
*inds = fa->numedges + 1;
}
static bsppoly_t *
build_surf_displist (model_t **models, msurface_t *fa, int base,
bspvert_t **vert_list)
{
int numverts;
int numindices;
int i;
vec_t *vec;
mvertex_t *vertices;
medge_t *edges;
int *surfedges;
int index;
bspvert_t *verts;
bsppoly_t *poly;
uint32_t *ind;
float s, t;
if (fa->ec_index < 0) {
// instance model
vertices = models[~fa->ec_index]->vertexes;
edges = models[~fa->ec_index]->edges;
surfedges = models[~fa->ec_index]->surfedges;
} else {
// main or sub model
vertices = r_worldentity.model->vertexes;
edges = r_worldentity.model->edges;
surfedges = r_worldentity.model->surfedges;
}
// create a triangle fan
numverts = fa->numedges;
numindices = numverts + 1;
verts = *vert_list;
// surf->polys is set to the next slot before the call
poly = (bsppoly_t *) fa->polys;
poly->count = numindices;
for (i = 0, ind = poly->indices; i < numverts; i++) {
*ind++ = base + i;
}
*ind++ = -1; // end of primitive
fa->polys = (glpoly_t *) poly;
for (i = 0; i < numverts; i++) {
index = surfedges[fa->firstedge + i];
if (index > 0) {
vec = vertices[edges[index].v[0]].position;
} else {
vec = vertices[edges[-index].v[1]].position;
}
s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
VectorCopy (vec, verts[i].vertex);
verts[i].vertex[3] = 1;
verts[i].tlst[0] = s / fa->texinfo->texture->width;
verts[i].tlst[1] = t / fa->texinfo->texture->height;
//lightmap texture coordinates
if (!fa->lightpic) {
// sky and water textures don't have lightmaps
verts[i].tlst[2] = 0;
verts[i].tlst[3] = 0;
continue;
}
s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
s -= fa->texturemins[0];
t -= fa->texturemins[1];
s += fa->lightpic->rect->x * 16 + 8;
t += fa->lightpic->rect->y * 16 + 8;
s /= 16;
t /= 16;
verts[i].tlst[2] = s * fa->lightpic->size;
verts[i].tlst[3] = t * fa->lightpic->size;
}
*vert_list += numverts;
return (bsppoly_t *) &poly->indices[numindices];
}
void
Vulkan_BuildDisplayLists (model_t **models, int num_models, vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
bspctx_t *bctx = ctx->bsp_context;
int i, j;
int vertex_index_base;
model_t *m;
dmodel_t *dm;
msurface_t *surf;
qfv_stagebuf_t *stage;
bspvert_t *vertices;
bsppoly_t *poly;
QuatSet (0, 0, sqrt(0.5), sqrt(0.5), bctx->sky_fix); // proper skies
QuatSet (0, 0, 0, 1, bctx->sky_rotation[0]);
QuatCopy (bctx->sky_rotation[0], bctx->sky_rotation[1]);
QuatSet (0, 0, 0, 0, bctx->sky_velocity);
QuatExp (bctx->sky_velocity, bctx->sky_velocity);
bctx->sky_time = vr_data.realtime;
// now run through all surfaces, chaining them to their textures, thus
// effectively sorting the surfaces by texture (without worrying about
// surface order on the same texture chain).
for (i = 0; i < num_models; i++) {
m = models[i];
if (!m)
continue;
// sub-models are done as part of the main model
if (*m->name == '*')
continue;
// non-bsp models don't have surfaces.
dm = m->submodels;
for (j = 0; j < m->numsurfaces; j++) {
vulktex_t *tex;
if (j == dm->firstface + dm->numfaces) {
dm++;
if (dm - m->submodels == m->numsubmodels) {
// limit the surfaces
// probably never hit
Sys_Printf ("R_BuildDisplayLists: too many surfaces\n");
m->numsurfaces = j;
break;
}
}
surf = m->surfaces + j;
surf->ec_index = dm - m->submodels;
if (!surf->ec_index && m != r_worldentity.model)
surf->ec_index = -1 - i; // instanced model
tex = surf->texinfo->texture->render;
// append surf to the texture chain
CHAIN_SURF_F2B (surf, tex->tex_chain);
}
}
// All vertices from all brush models go into one giant vbo.
uint32_t vertex_count = 0;
uint32_t index_count = 0;
uint32_t poly_count = 0;
for (size_t i = 0; i < bctx->texture_chains.size; i++) {
vulktex_t *tex = bctx->texture_chains.a[i];
for (instsurf_t *is = tex->tex_chain; is; is = is->tex_chain) {
uint32_t verts, inds;
count_verts_inds (models, is->surface, &verts, &inds);
vertex_count += verts;
index_count += inds;
poly_count++;
}
}
size_t frames = bctx->frames.size;
size_t index_buffer_size = index_count * frames * sizeof (uint32_t);
size_t vertex_buffer_size = vertex_count * sizeof (bspvert_t);
stage = QFV_CreateStagingBuffer (device, vertex_buffer_size, 1,
ctx->cmdpool);
qfv_packet_t *packet = QFV_PacketAcquire (stage);
vertices = QFV_PacketExtend (packet, vertex_buffer_size);
vertex_index_base = 0;
// holds all the polygon definitions (count + indices)
bctx->polys = malloc ((index_count + poly_count) * sizeof (uint32_t));
// All usable surfaces have been chained to the (base) texture they use.
// Run through the textures, using their chains to build display maps.
// For animated textures, if a surface is on one texture of the group, it
// will be on all.
poly = bctx->polys;
int count = 0;
for (size_t i = 0; i < bctx->texture_chains.size; i++) {
vulktex_t *tex;
instsurf_t *is;
elechain_t *ec = 0;
tex = bctx->texture_chains.a[i];
for (is = tex->tex_chain; is; is = is->tex_chain) {
msurface_t *surf = is->surface;
if (!tex->elechain) {
ec = add_elechain (tex, surf->ec_index, bctx);
}
if (surf->ec_index != ec->index) { // next sub-model
ec = add_elechain (tex, surf->ec_index, bctx);
}
surf->polys = (glpoly_t *) poly;
poly = build_surf_displist (models, surf, vertex_index_base,
&vertices);
vertex_index_base += surf->numedges;
count++;
}
}
clear_texture_chains (bctx);
Sys_MaskPrintf (SYS_VULKAN,
"R_BuildDisplayLists: verts:%u, inds:%u, polys:%u (%d) %zd\n",
vertex_count, index_count, poly_count, count,
((size_t) poly - (size_t) bctx->polys)/sizeof(uint32_t));
if (index_buffer_size > bctx->index_buffer_size) {
if (bctx->index_buffer) {
dfunc->vkUnmapMemory (device->dev, bctx->index_memory);
dfunc->vkDestroyBuffer (device->dev, bctx->index_buffer, 0);
dfunc->vkFreeMemory (device->dev, bctx->index_memory, 0);
}
bctx->index_buffer
= QFV_CreateBuffer (device, index_buffer_size,
VK_BUFFER_USAGE_TRANSFER_DST_BIT
| VK_BUFFER_USAGE_INDEX_BUFFER_BIT);
bctx->index_memory
= QFV_AllocBufferMemory (device, bctx->index_buffer,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
index_buffer_size, 0);
QFV_BindBufferMemory (device,
bctx->index_buffer, bctx->index_memory, 0);
bctx->index_buffer_size = index_buffer_size;
void *data;
dfunc->vkMapMemory (device->dev, bctx->index_memory, 0,
index_buffer_size, 0, &data);
uint32_t *index_data = data;
for (size_t i = 0; i < frames; i++) {
uint32_t offset = index_count * i;
bctx->frames.a[i].index_data = index_data + offset;
bctx->frames.a[i].index_offset = offset * sizeof (uint32_t);
bctx->frames.a[i].index_count = 0;
}
}
if (vertex_buffer_size > bctx->vertex_buffer_size) {
if (bctx->vertex_buffer) {
dfunc->vkDestroyBuffer (device->dev, bctx->vertex_buffer, 0);
dfunc->vkFreeMemory (device->dev, bctx->vertex_memory, 0);
}
bctx->vertex_buffer
= QFV_CreateBuffer (device, vertex_buffer_size,
VK_BUFFER_USAGE_TRANSFER_DST_BIT
| VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
bctx->vertex_memory
= QFV_AllocBufferMemory (device, bctx->vertex_buffer,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
vertex_buffer_size, 0);
QFV_BindBufferMemory (device,
bctx->vertex_buffer, bctx->vertex_memory, 0);
bctx->vertex_buffer_size = vertex_buffer_size;
}
VkBufferMemoryBarrier wr_barrier = {
VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER, 0,
0, VK_ACCESS_TRANSFER_WRITE_BIT,
VK_QUEUE_FAMILY_IGNORED, VK_QUEUE_FAMILY_IGNORED,
bctx->vertex_buffer, 0, vertex_buffer_size,
};
dfunc->vkCmdPipelineBarrier (packet->cmd,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT,
0, 0, 0, 1, &wr_barrier, 0, 0);
VkBufferCopy copy_region = { packet->offset, 0, vertex_buffer_size };
dfunc->vkCmdCopyBuffer (packet->cmd, stage->buffer,
bctx->vertex_buffer, 1, &copy_region);
VkBufferMemoryBarrier rd_barrier = {
VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER, 0,
VK_ACCESS_TRANSFER_WRITE_BIT, VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT,
VK_QUEUE_FAMILY_IGNORED, VK_QUEUE_FAMILY_IGNORED,
bctx->vertex_buffer, 0, vertex_buffer_size,
};
dfunc->vkCmdPipelineBarrier (packet->cmd,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_VERTEX_INPUT_BIT,
0, 0, 0, 1, &rd_barrier, 0, 0);
QFV_PacketSubmit (packet);
QFV_DestroyStagingBuffer (stage);
}
static void
R_DrawBrushModel (entity_t *e, vulkan_ctx_t *ctx)
{
float dot, radius;
int i;
unsigned k;
model_t *model;
plane_t *plane;
msurface_t *surf;
qboolean rotated;
vec3_t mins, maxs, org;
model = e->model;
if (e->transform[0] != 1 || e->transform[5] != 1 || e->transform[10] != 1) {
rotated = true;
radius = model->radius;
if (R_CullSphere (e->origin, radius))
return;
} else {
rotated = false;
VectorAdd (e->origin, model->mins, mins);
VectorAdd (e->origin, model->maxs, maxs);
if (R_CullBox (mins, maxs))
return;
}
VectorSubtract (r_refdef.vieworg, e->origin, org);
if (rotated) {
vec3_t temp;
VectorCopy (org, temp);
org[0] = DotProduct (temp, e->transform + 0);
org[1] = DotProduct (temp, e->transform + 4);
org[2] = DotProduct (temp, e->transform + 8);
}
// calculate dynamic lighting for bmodel if it's not an instanced model
if (model->firstmodelsurface != 0 && r_dlight_lightmap->int_val) {
vec3_t lightorigin;
for (k = 0; k < r_maxdlights; k++) {
if ((r_dlights[k].die < vr_data.realtime)
|| (!r_dlights[k].radius))
continue;
VectorSubtract (r_dlights[k].origin, e->origin, lightorigin);
R_RecursiveMarkLights (lightorigin, &r_dlights[k], k,
model->nodes + model->hulls[0].firstclipnode);
}
}
surf = &model->surfaces[model->firstmodelsurface];
for (i = 0; i < model->nummodelsurfaces; i++, surf++) {
// find the node side on which we are
plane = surf->plane;
dot = PlaneDiff (org, plane);
// enqueue the polygon
if (((surf->flags & SURF_PLANEBACK) && (dot < -BACKFACE_EPSILON))
|| (!(surf->flags & SURF_PLANEBACK) && (dot > BACKFACE_EPSILON))) {
chain_surface (surf, e->transform, e->colormod, ctx);
}
}
}
static inline void
visit_leaf (mleaf_t *leaf)
{
// deal with model fragments in this leaf
if (leaf->efrags)
R_StoreEfrags (leaf->efrags);
}
static inline int
get_side (mnode_t *node)
{
// find the node side on which we are
plane_t *plane = node->plane;
if (plane->type < 3)
return (r_origin[plane->type] - plane->dist) < 0;
return (DotProduct (r_origin, plane->normal) - plane->dist) < 0;
}
static inline void
visit_node (mnode_t *node, int side, vulkan_ctx_t *ctx)
{
int c;
msurface_t *surf;
// sneaky hack for side = side ? SURF_PLANEBACK : 0;
side = (~side + 1) & SURF_PLANEBACK;
// draw stuff
if ((c = node->numsurfaces)) {
surf = r_worldentity.model->surfaces + node->firstsurface;
for (; c; c--, surf++) {
if (surf->visframe != r_visframecount)
continue;
// side is either 0 or SURF_PLANEBACK
if (side ^ (surf->flags & SURF_PLANEBACK))
continue; // wrong side
chain_surface (surf, 0, 0, ctx);
}
}
}
static inline int
test_node (mnode_t *node)
{
if (node->contents < 0)
return 0;
if (node->visframe != r_visframecount)
return 0;
if (R_CullBox (node->minmaxs, node->minmaxs + 3))
return 0;
return 1;
}
static void
R_VisitWorldNodes (model_t *model, vulkan_ctx_t *ctx)
{
typedef struct {
mnode_t *node;
int side;
} rstack_t;
rstack_t *node_ptr;
rstack_t *node_stack;
mnode_t *node;
mnode_t *front;
int side;
node = model->nodes;
// +2 for paranoia
node_stack = alloca ((model->depth + 2) * sizeof (rstack_t));
node_ptr = node_stack;
while (1) {
while (test_node (node)) {
side = get_side (node);
front = node->children[side];
if (test_node (front)) {
node_ptr->node = node;
node_ptr->side = side;
node_ptr++;
node = front;
continue;
}
if (front->contents < 0 && front->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) front);
visit_node (node, side, ctx);
node = node->children[!side];
}
if (node->contents < 0 && node->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) node);
if (node_ptr != node_stack) {
node_ptr--;
node = node_ptr->node;
side = node_ptr->side;
visit_node (node, side, ctx);
node = node->children[!side];
continue;
}
break;
}
if (node->contents < 0 && node->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) node);
}
static void
draw_elechain (elechain_t *ec, VkPipelineLayout layout, qfv_devfuncs_t *dfunc,
VkCommandBuffer cmd)
{
elements_t *el;
/*if (colloc >= 0) {
float *color;
color = ec->color;
if (!color)
color = bctx->default_color;
if (!QuatCompare (color, bctx->last_color)) {
QuatCopy (color, bctx->last_color);
qfeglVertexAttrib4fv (quake_bsp.color.location, color);
}
}*/
if (ec->transform) {
dfunc->vkCmdPushConstants (cmd, layout, VK_SHADER_STAGE_VERTEX_BIT,
0, 16 * sizeof (float), ec->transform);
}
for (el = ec->elements; el; el = el->next) {
//FIXME check if these are contiguous and if so merge into one
//command
if (!el->index_count)
continue;
dfunc->vkCmdDrawIndexed (cmd, el->index_count, 1, el->first_index,
0, 0);
el->first_index = 0;
el->index_count = 0;
}
}
static VkImageView
get_view (qfv_tex_t *tex)
{
if (tex) {
return tex->view;
}
return 0;
}
static void
bsp_begin (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
bspctx_t *bctx = ctx->bsp_context;
//XXX quat_t fog;
bctx->default_color[3] = 1;
QuatCopy (bctx->default_color, bctx->last_color);
__auto_type cframe = &ctx->framebuffers.a[ctx->curFrame];
bspframe_t *bframe = &bctx->frames.a[ctx->curFrame];
VkCommandBuffer cmd = bframe->bsp_cmd;
DARRAY_APPEND (cframe->subCommand, cmd);
VkDescriptorBufferInfo bufferInfo = {
ctx->matrices.buffer_3d, 0, VK_WHOLE_SIZE
};
VkDescriptorImageInfo imageInfo[] = {
{ bctx->sampler,
QFV_ScrapImageView (bctx->light_scrap),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL },
{ bctx->sampler,
QFV_ScrapImageView (bctx->light_scrap),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL },
{ bctx->sampler,
QFV_ScrapImageView (bctx->light_scrap),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL },
{ bctx->sampler,
get_view (bctx->skysheet_tex),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL },
{ bctx->sampler,
get_view (bctx->skybox_tex),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL },
};
VkWriteDescriptorSet write[] = {
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
0, 0, 1,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
0, &bufferInfo, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
1, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo[0], 0, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
2, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo[1], 0, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
3, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo[2], 0, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
4, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo[3], 0, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0, 0,
5, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo[4], 0, 0 },
};
dfunc->vkResetCommandBuffer (cmd, 0);
VkCommandBufferInheritanceInfo inherit = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO, 0,
ctx->renderpass.renderpass, 0,
cframe->framebuffer,
0, 0, 0,
};
VkCommandBufferBeginInfo beginInfo = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, 0,
VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT
| VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT, &inherit,
};
dfunc->vkBeginCommandBuffer (cmd, &beginInfo);
dfunc->vkCmdBindPipeline (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
bctx->main);
VkViewport viewport = {0, 0, vid.width, vid.height, 0, 1};
VkRect2D scissor = { {0, 0}, {vid.width, vid.height} };
dfunc->vkCmdSetViewport (cmd, 0, 1, &viewport);
dfunc->vkCmdSetScissor (cmd, 0, 1, &scissor);
VkDeviceSize offsets[] = { 0 };
dfunc->vkCmdBindVertexBuffers (cmd, 0, 1, &bctx->vertex_buffer, offsets);
dfunc->vkCmdBindIndexBuffer (cmd, bctx->index_buffer, bframe->index_offset,
VK_INDEX_TYPE_UINT32);
dfunc->vkCmdPushDescriptorSetKHR (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
bctx->layout, 0, 4, write);
//XXX glsl_Fog_GetColor (fog);
//XXX fog[3] = glsl_Fog_GetDensity () / 64.0;
}
static void
bsp_end (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
bspctx_t *bctx = ctx->bsp_context;
bspframe_t *bframe = &bctx->frames.a[ctx->curFrame];
dfunc->vkEndCommandBuffer (bframe->bsp_cmd);
}
/*static void
turb_begin (bspctx_t *bctx)
{
quat_t fog;
bctx->default_color[3] = bound (0, r_wateralpha->value, 1);
QuatCopy (bctx->default_color, bctx->last_color);
qfeglVertexAttrib4fv (quake_bsp.color.location, default_color);
Mat4Mult (glsl_projection, glsl_view, bsp_vp);
qfeglUseProgram (quake_turb.program);
qfeglEnableVertexAttribArray (quake_turb.vertex.location);
qfeglEnableVertexAttribArray (quake_turb.tlst.location);
qfeglDisableVertexAttribArray (quake_turb.color.location);
qfeglVertexAttrib4fv (quake_turb.color.location, default_color);
glsl_Fog_GetColor (fog);
fog[3] = glsl_Fog_GetDensity () / 64.0;
qfeglUniform4fv (quake_turb.fog.location, 1, fog);
qfeglUniform1i (quake_turb.palette.location, 1);
qfeglActiveTexture (GL_TEXTURE0 + 1);
qfeglEnable (GL_TEXTURE_2D);
qfeglBindTexture (GL_TEXTURE_2D, glsl_palette);
qfeglUniform1f (quake_turb.time.location, vr_data.realtime);
qfeglUniform1i (quake_turb.texture.location, 0);
qfeglActiveTexture (GL_TEXTURE0 + 0);
qfeglEnable (GL_TEXTURE_2D);
qfeglBindBuffer (GL_ARRAY_BUFFER, bsp_vbo);
}*/
/*static void
turb_end (bspctx_t *bctx)
{
qfeglDisableVertexAttribArray (quake_turb.vertex.location);
qfeglDisableVertexAttribArray (quake_turb.tlst.location);
qfeglActiveTexture (GL_TEXTURE0 + 0);
qfeglDisable (GL_TEXTURE_2D);
qfeglActiveTexture (GL_TEXTURE0 + 1);
qfeglDisable (GL_TEXTURE_2D);
qfeglBindBuffer (GL_ARRAY_BUFFER, 0);
}*/
/*XXX static void
spin (mat4_t mat, bspctx_t *bctx)
{
quat_t q;
mat4_t m;
float blend;
while (vr_data.realtime - bctx->sky_time > 1) {
QuatCopy (bctx->sky_rotation[1], bctx->sky_rotation[0]);
QuatMult (bctx->sky_velocity, bctx->sky_rotation[0],
bctx->sky_rotation[1]);
bctx->sky_time += 1;
}
blend = bound (0, (vr_data.realtime - bctx->sky_time), 1);
QuatBlend (bctx->sky_rotation[0], bctx->sky_rotation[1], blend, q);
QuatMult (bctx->sky_fix, q, q);
Mat4Identity (mat);
VectorNegate (r_origin, mat + 12);
QuatToMatrix (q, m, 1, 1);
Mat4Mult (m, mat, mat);
}*/
static void
sky_begin (bspctx_t *bctx)
{
//XXX mat4_t mat;
//XXX quat_t fog;
bctx->default_color[3] = 1;
QuatCopy (bctx->default_color, bctx->last_color);
/* qfeglVertexAttrib4fv (quake_bsp.color.location, bctx->default_color);
Mat4Mult (glsl_projection, glsl_view, bsp_vp);
if (bctx->skybox_tex) {
sky_params.mvp_matrix = &quake_skybox.mvp_matrix;
sky_params.vertex = &quake_skybox.vertex;
sky_params.sky_matrix = &quake_skybox.sky_matrix;
sky_params.fog = &quake_skybox.fog;
qfeglUseProgram (quake_skybox.program);
qfeglEnableVertexAttribArray (quake_skybox.vertex.location);
qfeglUniform1i (quake_skybox.sky.location, 0);
qfeglActiveTexture (GL_TEXTURE0 + 0);
qfeglEnable (GL_TEXTURE_CUBE_MAP);
qfeglBindTexture (GL_TEXTURE_CUBE_MAP, skybox_tex);
} else {
sky_params.mvp_matrix = &quake_skyid.mvp_matrix;
sky_params.sky_matrix = &quake_skyid.sky_matrix;
sky_params.vertex = &quake_skyid.vertex;
sky_params.fog = &quake_skyid.fog;
qfeglUseProgram (quake_skyid.program);
qfeglEnableVertexAttribArray (quake_skyid.vertex.location);
qfeglUniform1i (quake_skyid.palette.location, 2);
qfeglActiveTexture (GL_TEXTURE0 + 2);
qfeglEnable (GL_TEXTURE_2D);
qfeglBindTexture (GL_TEXTURE_2D, glsl_palette);
qfeglUniform1f (quake_skyid.time.location, vr_data.realtime);
qfeglUniform1i (quake_skyid.trans.location, 0);
qfeglActiveTexture (GL_TEXTURE0 + 0);
qfeglEnable (GL_TEXTURE_2D);
qfeglUniform1i (quake_skyid.solid.location, 1);
qfeglActiveTexture (GL_TEXTURE0 + 1);
qfeglEnable (GL_TEXTURE_2D);
}
glsl_Fog_GetColor (fog);
fog[3] = glsl_Fog_GetDensity () / 64.0;
qfeglUniform4fv (sky_params.fog->location, 1, fog);
spin (mat);
qfeglUniformMatrix4fv (sky_params.sky_matrix->location, 1, false, mat);
qfeglBindBuffer (GL_ARRAY_BUFFER, bsp_vbo);*/
}
static void
sky_end (bspctx_t *bctx)
{
/*XXX qfeglDisableVertexAttribArray (sky_params.vertex->location);
qfeglActiveTexture (GL_TEXTURE0 + 0);
qfeglDisable (GL_TEXTURE_2D);
qfeglDisable (GL_TEXTURE_CUBE_MAP);
qfeglActiveTexture (GL_TEXTURE0 + 1);
qfeglDisable (GL_TEXTURE_2D);
qfeglActiveTexture (GL_TEXTURE0 + 2);
qfeglDisable (GL_TEXTURE_2D);
qfeglBindBuffer (GL_ARRAY_BUFFER, 0);*/
}
static inline void
add_surf_elements (vulktex_t *tex, instsurf_t *is,
elechain_t **ec, elements_t **el,
bspctx_t *bctx, bspframe_t *bframe)
{
msurface_t *surf = is->surface;
bsppoly_t *poly = (bsppoly_t *) surf->polys;
if (!tex->elechain) {
(*ec) = add_elechain (tex, surf->ec_index, bctx);
(*ec)->transform = is->transform;
(*ec)->color = is->color;
(*el) = (*ec)->elements;
(*el)->first_index = bframe->index_count;
}
if (is->transform != (*ec)->transform || is->color != (*ec)->color) {
(*ec) = add_elechain (tex, surf->ec_index, bctx);
(*ec)->transform = is->transform;
(*ec)->color = is->color;
(*el) = (*ec)->elements;
(*el)->first_index = bframe->index_count;
}
memcpy (bframe->index_data + bframe->index_count,
poly->indices, poly->count * sizeof (poly->indices[0]));
(*el)->index_count += poly->count;
bframe->index_count += poly->count;
}
static void
build_tex_elechain (vulktex_t *tex, bspctx_t *bctx, bspframe_t *bframe)
{
instsurf_t *is;
elechain_t *ec = 0;
elements_t *el = 0;
for (is = tex->tex_chain; is; is = is->tex_chain) {
add_surf_elements (tex, is, &ec, &el, bctx, bframe);
}
}
void
Vulkan_DrawWorld (vulkan_ctx_t *ctx)
{
static float identity[] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1,
};
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
bspctx_t *bctx = ctx->bsp_context;
bspframe_t *bframe = &bctx->frames.a[ctx->curFrame];
entity_t worldent;
clear_texture_chains (bctx); // do this first for water and skys
bframe->index_count = 0;
memset (&worldent, 0, sizeof (worldent));
worldent.model = r_worldentity.model;
//vulktex_t *tex = r_worldentity.model->skytexture->render;
//bctx->skysheet_tex = tex->tex;
currententity = &worldent;
R_VisitWorldNodes (worldent.model, ctx);
if (r_drawentities->int_val) {
entity_t *ent;
for (ent = r_ent_queue; ent; ent = ent->next) {
if (ent->model->type != mod_brush)
continue;
currententity = ent;
R_DrawBrushModel (ent, ctx);
}
}
Vulkan_FlushLightmaps (ctx);
bsp_begin (ctx);
dfunc->vkCmdPushConstants (bframe->bsp_cmd, bctx->layout,
VK_SHADER_STAGE_VERTEX_BIT,
0, 16 * sizeof (float), identity);
float frag_pc[8] = { };
dfunc->vkCmdPushConstants (bframe->bsp_cmd, bctx->layout,
VK_SHADER_STAGE_FRAGMENT_BIT,
64, 8 * sizeof (float), &frag_pc);
//XXX qfeglActiveTexture (GL_TEXTURE0 + 0);
for (size_t i = 0; i < bctx->texture_chains.size; i++) {
vulktex_t *tex;
elechain_t *ec = 0;
tex = bctx->texture_chains.a[i];
build_tex_elechain (tex, bctx, bframe);
//XXX if (tex->elechain)
//XXX qfeglBindTexture (GL_TEXTURE_2D, tex->gl_texturenum);
for (ec = tex->elechain; ec; ec = ec->next) {
draw_elechain (ec, bctx->layout, dfunc, bframe->bsp_cmd);
}
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
bsp_end (ctx);
}
void
Vulkan_DrawWaterSurfaces (vulkan_ctx_t *ctx)
{
/* bspctx_t *bctx = ctx->bsp_context;
instsurf_t *is;
msurface_t *surf;
vulktex_t *tex = 0;
elechain_t *ec = 0;
elements_t *el = 0;
if (!bctx->waterchain)
return;
turb_begin (bctx);
for (is = bctx->waterchain; is; is = is->tex_chain) {
surf = is->surface;
if (tex != surf->texinfo->texture) {
if (tex) {
//XXX qfeglBindTexture (GL_TEXTURE_2D, tex->gl_texturenum);
//for (ec = tex->elechain; ec; ec = ec->next)
// draw_elechain (ec, quake_turb.mvp_matrix.location,
// quake_turb.vertex.location,
// quake_turb.tlst.location,
// quake_turb.color.location);
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
tex = surf->texinfo->texture;
}
add_surf_elements (tex, is, &ec, &el, bctx);
}
if (tex) {
//XXX qfeglBindTexture (GL_TEXTURE_2D, tex->gl_texturenum);
//for (ec = tex->elechain; ec; ec = ec->next)
// draw_elechain (ec, quake_turb.mvp_matrix.location,
// quake_turb.vertex.location,
// quake_turb.tlst.location,
// quake_turb.color.location);
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
turb_end (bctx);
bctx->waterchain = 0;
bctx->waterchain_tail = &bctx->waterchain;*/
}
void
Vulkan_DrawSky (vulkan_ctx_t *ctx)
{
bspctx_t *bctx = ctx->bsp_context;
bspframe_t *bframe = &bctx->frames.a[ctx->curFrame];
instsurf_t *is;
msurface_t *surf;
vulktex_t *tex = 0;
elechain_t *ec = 0;
elements_t *el = 0;
if (!bctx->sky_chain)
return;
sky_begin (bctx);
for (is = bctx->sky_chain; is; is = is->tex_chain) {
surf = is->surface;
if (tex != surf->texinfo->texture->render) {
if (tex) {
if (!bctx->skybox_tex) {
//XXX qfeglActiveTexture (GL_TEXTURE0 + 0);
//qfeglBindTexture (GL_TEXTURE_2D, tex->sky_tex[0]);
//qfeglActiveTexture (GL_TEXTURE0 + 1);
//qfeglBindTexture (GL_TEXTURE_2D, tex->sky_tex[1]);
}
//for (ec = tex->elechain; ec; ec = ec->next)
// draw_elechain (ec, sky_params.mvp_matrix->location,
// sky_params.vertex->location, -1, -1);
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
tex = surf->texinfo->texture->render;
}
add_surf_elements (tex, is, &ec, &el, bctx, bframe);
}
if (tex) {
if (!bctx->skybox_tex) {
//XXX qfeglActiveTexture (GL_TEXTURE0 + 0);
//qfeglBindTexture (GL_TEXTURE_2D, tex->sky_tex[0]);
//qfeglActiveTexture (GL_TEXTURE0 + 1);
//qfeglBindTexture (GL_TEXTURE_2D, tex->sky_tex[1]);
}
//for (ec = tex->elechain; ec; ec = ec->next)
// draw_elechain (ec, sky_params.mvp_matrix->location,
// sky_params.vertex->location, -1, -1);
tex->elechain = 0;
tex->elechain_tail = &tex->elechain;
}
sky_end (bctx);
bctx->sky_chain = 0;
bctx->sky_chain_tail = &bctx->sky_chain;
}
void
Vulkan_Bsp_Init (vulkan_ctx_t *ctx)
{
qfv_device_t *device = ctx->device;
bspctx_t *bctx = calloc (1, sizeof (bspctx_t));
ctx->bsp_context = bctx;
bctx->waterchain_tail = &bctx->waterchain;
bctx->sky_chain_tail = &bctx->sky_chain;
bctx->static_instsurfs_tail = &bctx->static_instsurfs;
bctx->elechains_tail = &bctx->elechains;
bctx->elementss_tail = &bctx->elementss;
bctx->instsurfs_tail = &bctx->instsurfs;
bctx->light_scrap = QFV_CreateScrap (device, 2048, tex_frgba, ctx->staging);
size_t size = QFV_ScrapSize (bctx->light_scrap);
bctx->light_stage = QFV_CreateStagingBuffer (device, size, 3,
ctx->cmdpool);
DARRAY_INIT (&bctx->texture_chains, 64);
size_t frames = ctx->framebuffers.size;
DARRAY_INIT (&bctx->frames, frames);
DARRAY_RESIZE (&bctx->frames, frames);
bctx->frames.grow = 0;
bctx->main = Vulkan_CreatePipeline (ctx, "quakebsp.main");
bctx->layout = QFV_GetPipelineLayout (ctx, "quakebsp");
bctx->sampler = QFV_GetSampler (ctx, "quakebsp");
__auto_type layouts = QFV_AllocDescriptorSetLayoutSet (frames, alloca);
for (size_t i = 0; i < layouts->size; i++) {
layouts->a[i] = QFV_GetDescriptorSetLayout (ctx, "quakebsp");
}
__auto_type cmdBuffers = QFV_AllocCommandBufferSet (3 * frames, alloca);
QFV_AllocateCommandBuffers (device, ctx->cmdpool, 1, cmdBuffers);
for (size_t i = 0; i < frames; i++) {
__auto_type bframe = &bctx->frames.a[i];
bframe->bsp_cmd = cmdBuffers->a[i];
bframe->turb_cmd = cmdBuffers->a[i];
bframe->sky_cmd = cmdBuffers->a[i];
}
}
void
Vulkan_Bsp_Shutdown (struct vulkan_ctx_s *ctx)
{
qfv_device_t *device = ctx->device;
qfv_devfuncs_t *dfunc = device->funcs;
bspctx_t *bctx = ctx->bsp_context;
dfunc->vkDestroyPipeline (device->dev, bctx->main, 0);
DARRAY_CLEAR (&bctx->texture_chains);
DARRAY_CLEAR (&bctx->frames);
QFV_DestroyStagingBuffer (bctx->light_stage);
QFV_DestroyScrap (bctx->light_scrap);
if (bctx->vertex_buffer) {
dfunc->vkDestroyBuffer (device->dev, bctx->vertex_buffer, 0);
dfunc->vkFreeMemory (device->dev, bctx->vertex_memory, 0);
}
if (bctx->index_buffer) {
dfunc->vkDestroyBuffer (device->dev, bctx->index_buffer, 0);
dfunc->vkFreeMemory (device->dev, bctx->index_memory, 0);
}
}
static inline __attribute__((const)) int
is_pow2 (unsigned x)
{
int count;
for (count = 0; x; x >>= 1)
if (x & 1)
count++;
return count == 1;
}
// NOTE: this expects the destination tex_t to be set up: memory allocated
// and dimentions/format etc already set. the size of the rect to be copied
// is taken from dst. Also, dst->format and src->format must be the same, and
// either 3 or 4, or bad things will happen. Also, no clipping is done, so if
// x < 0 or y < 0 or x + dst->width > src->width
// or y + dst->height > src->height, bad things will happen.
/*XXX static void
copy_sub_tex (tex_t *src, int x, int y, tex_t *dst)
{
int dstbytes;
int srcbytes;
int i;
srcbytes = src->width * src->format;
dstbytes = dst->width * dst->format;
x *= src->format;
for (i = 0; i < dst->height; i++)
memcpy (dst->data + i * dstbytes, src->data + (i + y) * srcbytes + x,
dstbytes);
}*/
/*XXX void
Vulkan_R_LoadSkys (const char *sky, vulkan_ctx_t *ctx)
{
const char *name;
int i;
tex_t *tex;
// NOTE: quake's world and GL's world are rotated relative to each other
// quake has x right, y in, z up. gl has x right, y up, z out
// quake order: +x -x +z -z +y -y
// gl order: +x -x +y -y +z -z
// fizquake orger: -y +y +z -z +x -x
// to get from quake order to fitzquake order, all that's needed is
// a -90 degree rotation on the (quake) z-axis. This is taken care of in
// the sky_matrix setup code.
// However, from the player's perspective, skymaps have lf and rt
// swapped, but everythink makes sense if looking at the cube from outside
// along the positive y axis, with the front of the cube being the nearest
// face. This matches nicely with Blender's default cube in front (num-1)
// view.
static const char *sky_suffix[] = { "ft", "bk", "up", "dn", "rt", "lf"};
static int sky_coords[][2] = {
{2, 0}, // front
{0, 0}, // back
{1, 1}, // up
{0, 1}, // down
{2, 1}, // left
{1, 0}, // right
};
if (!sky || !*sky)
sky = r_skyname->string;
if (!*sky || !strcasecmp (sky, "none")) {
skybox_loaded = false;
return;
}
if (!skybox_tex)
qfeglGenTextures (1, &skybox_tex);
qfeglBindTexture (GL_TEXTURE_CUBE_MAP, skybox_tex);
//blender envmap
// bk rt ft
// dn up lt
tex = LoadImage (name = va ("env/%s_map", sky));
if (tex && tex->format >= 3 && tex->height * 3 == tex->width * 2
&& is_pow2 (tex->height)) {
tex_t *sub;
int size = tex->height / 2;
skybox_loaded = true;
sub = malloc (field_offset (tex_t, data[size * size * tex->format]));
sub->width = size;
sub->height = size;
sub->format = tex->format;
sub->palette = tex->palette;
for (i = 0; i < 6; i++) {
int x, y;
x = sky_coords[i][0] * size;
y = sky_coords[i][1] * size;
copy_sub_tex (tex, x, y, sub);
qfeglTexImage2D (GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0,
sub->format == 3 ? GL_RGB : GL_RGBA,
sub->width, sub->height, 0,
sub->format == 3 ? GL_RGB : GL_RGBA,
GL_UNSIGNED_BYTE, sub->data);
}
free (sub);
} else {
skybox_loaded = true;
for (i = 0; i < 6; i++) {
tex = LoadImage (name = va ("env/%s%s", sky, sky_suffix[i]));
if (!tex || tex->format < 3) { // FIXME pcx support
Sys_MaskPrintf (SYS_GLSL, "Couldn't load %s\n", name);
// also look in gfx/env, where Darkplaces looks for skies
tex = LoadImage (name = va ("gfx/env/%s%s", sky,
sky_suffix[i]));
if (!tex || tex->format < 3) { // FIXME pcx support
Sys_MaskPrintf (SYS_GLSL, "Couldn't load %s\n", name);
skybox_loaded = false;
continue;
}
}
Sys_MaskPrintf (SYS_GLSL, "Loaded %s\n", name);
qfeglTexImage2D (GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0,
tex->format == 3 ? GL_RGB : GL_RGBA,
tex->width, tex->height, 0,
tex->format == 3 ? GL_RGB : GL_RGBA,
GL_UNSIGNED_BYTE, tex->data);
}
}
qfeglTexParameteri (GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_EDGE);
qfeglTexParameteri (GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
qfeglTexParameteri (GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
qfeglTexParameteri (GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
qfeglGenerateMipmap (GL_TEXTURE_CUBE_MAP);
}*/
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