static void
svga_vbuf_render_set_primitive( struct vbuf_render *render,
enum pipe_prim_type prim )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
svga_render->prim = prim;
}
static void
svga_vbuf_render_draw_arrays( struct vbuf_render *render,
unsigned start,
uint nr )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
unsigned bias = (svga_render->vbuf_offset - svga_render->vdecl_offset) / svga_render->vertex_size;
enum pipe_error ret = PIPE_OK;
/* off to hardware */
svga_vbuf_submit_state(svga_render);
/* Need to call update_state() again as the draw module may have
* altered some of our state behind our backs. Testcase:
* redbook/polys.c
*/
svga_update_state_retry( svga, SVGA_STATE_HW_DRAW );
ret = svga_hwtnl_draw_arrays(svga->hwtnl, svga_render->prim, start + bias, nr);
if (ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = svga_hwtnl_draw_arrays(svga->hwtnl, svga_render->prim, start + bias, nr);
svga->swtnl.new_vbuf = TRUE;
assert(ret == PIPE_OK);
}
}
static void
svga_vbuf_render_unmap_vertices( struct vbuf_render *render,
ushort min_index,
ushort max_index )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
unsigned offset, length;
size_t used = svga_render->vertex_size * ((size_t)max_index + 1);
offset = svga_render->vbuf_offset + svga_render->vertex_size * min_index;
length = svga_render->vertex_size * (max_index + 1 - min_index);
if (0) {
/* dump vertex data */
const float *f = (const float *) ((char *) svga_render->vbuf_ptr +
svga_render->vbuf_offset);
unsigned i;
debug_printf("swtnl vertex data:\n");
for (i = 0; i < length / 4; i += 4) {
debug_printf("%u: %f %f %f %f\n", i, f[i], f[i+1], f[i+2], f[i+3]);
}
}
pipe_buffer_flush_mapped_range(&svga->pipe,
svga_render->vbuf_transfer,
offset, length);
pipe_buffer_unmap(&svga->pipe, svga_render->vbuf_transfer);
svga_render->min_index = min_index;
svga_render->max_index = max_index;
svga_render->vbuf_used = MAX2(svga_render->vbuf_used, used);
}
static void *
svga_vbuf_render_map_vertices( struct vbuf_render *render )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
if (svga_render->vbuf) {
char *ptr = (char*)pipe_buffer_map(&svga->pipe,
svga_render->vbuf,
PIPE_TRANSFER_WRITE |
PIPE_TRANSFER_FLUSH_EXPLICIT |
PIPE_TRANSFER_DISCARD_RANGE |
PIPE_TRANSFER_UNSYNCHRONIZED,
&svga_render->vbuf_transfer);
if (ptr) {
svga_render->vbuf_ptr = ptr;
return ptr + svga_render->vbuf_offset;
}
else {
svga_render->vbuf_ptr = NULL;
svga_render->vbuf_transfer = NULL;
return NULL;
}
}
else {
/* we probably ran out of memory when allocating the vertex buffer */
return NULL;
}
}
static boolean
svga_vbuf_render_allocate_vertices( struct vbuf_render *render,
ushort vertex_size,
ushort nr_vertices )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
struct pipe_screen *screen = svga->pipe.screen;
size_t size = (size_t)nr_vertices * (size_t)vertex_size;
boolean new_vbuf = FALSE;
boolean new_ibuf = FALSE;
if (svga_render->vertex_size != vertex_size)
svga->swtnl.new_vdecl = TRUE;
svga_render->vertex_size = (size_t)vertex_size;
if (svga->swtnl.new_vbuf)
new_ibuf = new_vbuf = TRUE;
svga->swtnl.new_vbuf = FALSE;
if (svga_render->vbuf_size < svga_render->vbuf_offset + svga_render->vbuf_used + size)
new_vbuf = TRUE;
if (new_vbuf)
pipe_resource_reference(&svga_render->vbuf, NULL);
if (new_ibuf)
pipe_resource_reference(&svga_render->ibuf, NULL);
if (!svga_render->vbuf) {
svga_render->vbuf_size = MAX2(size, svga_render->vbuf_alloc_size);
svga_render->vbuf = pipe_buffer_create(screen,
PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STREAM,
svga_render->vbuf_size);
if(!svga_render->vbuf) {
svga_context_flush(svga, NULL);
assert(!svga_render->vbuf);
svga_render->vbuf = pipe_buffer_create(screen,
PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STREAM,
svga_render->vbuf_size);
/* The buffer allocation may fail if we run out of memory.
* The draw module's vbuf code should handle that without crashing.
*/
}
svga->swtnl.new_vdecl = TRUE;
svga_render->vbuf_offset = 0;
} else {
svga_render->vbuf_offset += svga_render->vbuf_used;
}
svga_render->vbuf_used = 0;
if (svga->swtnl.new_vdecl)
svga_render->vdecl_offset = svga_render->vbuf_offset;
return TRUE;
}
static void
svga_vbuf_render_destroy( struct vbuf_render *render )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
pipe_resource_reference(&svga_render->vbuf, NULL);
pipe_resource_reference(&svga_render->ibuf, NULL);
FREE(svga_render);
}
static boolean
svga_vbuf_render_set_primitive( struct vbuf_render *render,
unsigned prim )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
svga_render->prim = prim;
return TRUE;
}
static boolean
svga_vbuf_render_allocate_vertices( struct vbuf_render *render,
ushort vertex_size,
ushort nr_vertices )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
struct pipe_screen *screen = svga->pipe.screen;
size_t size = (size_t)nr_vertices * (size_t)vertex_size;
boolean new_vbuf = FALSE;
boolean new_ibuf = FALSE;
if (svga_render->vertex_size != vertex_size)
svga->swtnl.new_vdecl = TRUE;
svga_render->vertex_size = (size_t)vertex_size;
if (svga->swtnl.new_vbuf)
new_ibuf = new_vbuf = TRUE;
svga->swtnl.new_vbuf = FALSE;
if (svga_render->vbuf_size < svga_render->vbuf_offset + svga_render->vbuf_used + size)
new_vbuf = TRUE;
if (new_vbuf)
pipe_buffer_reference(&svga_render->vbuf, NULL);
if (new_ibuf)
pipe_buffer_reference(&svga_render->ibuf, NULL);
if (!svga_render->vbuf) {
svga_render->vbuf_size = MAX2(size, svga_render->vbuf_alloc_size);
svga_render->vbuf = pipe_buffer_create(screen,
16,
PIPE_BUFFER_USAGE_VERTEX,
svga_render->vbuf_size);
if(!svga_render->vbuf) {
svga_context_flush(svga, NULL);
svga_render->vbuf = pipe_buffer_create(screen,
16,
PIPE_BUFFER_USAGE_VERTEX,
svga_render->vbuf_size);
assert(svga_render->vbuf);
}
svga->swtnl.new_vdecl = TRUE;
svga_render->vbuf_offset = 0;
} else {
svga_render->vbuf_offset += svga_render->vbuf_used;
}
svga_render->vbuf_used = 0;
if (svga->swtnl.new_vdecl)
svga_render->vdecl_offset = svga_render->vbuf_offset;
return TRUE;
}
static const struct vertex_info *
svga_vbuf_render_get_vertex_info( struct vbuf_render *render )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
svga_swtnl_update_vdecl(svga);
return &svga_render->vertex_info;
}
static void *
svga_vbuf_render_map_vertices( struct vbuf_render *render )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
struct pipe_screen *screen = svga->pipe.screen;
char *ptr = (char*)pipe_buffer_map(screen,
svga_render->vbuf,
PIPE_BUFFER_USAGE_CPU_WRITE |
PIPE_BUFFER_USAGE_FLUSH_EXPLICIT |
PIPE_BUFFER_USAGE_DISCARD |
PIPE_BUFFER_USAGE_UNSYNCHRONIZED);
return ptr + svga_render->vbuf_offset;
}
static void
svga_vbuf_render_unmap_vertices( struct vbuf_render *render,
ushort min_index,
ushort max_index )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
struct pipe_screen *screen = svga->pipe.screen;
unsigned offset, length;
size_t used = svga_render->vertex_size * ((size_t)max_index + 1);
offset = svga_render->vbuf_offset + svga_render->vertex_size * min_index;
length = svga_render->vertex_size * (max_index + 1 - min_index);
pipe_buffer_flush_mapped_range(screen, svga_render->vbuf, offset, length);
pipe_buffer_unmap(screen, svga_render->vbuf);
svga_render->min_index = min_index;
svga_render->max_index = max_index;
svga_render->vbuf_used = MAX2(svga_render->vbuf_used, used);
}
static void
svga_vbuf_render_draw_elements( struct vbuf_render *render,
const ushort *indices,
uint nr_indices)
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(render);
struct svga_context *svga = svga_render->svga;
struct pipe_screen *screen = svga->pipe.screen;
int bias = (svga_render->vbuf_offset - svga_render->vdecl_offset) / svga_render->vertex_size;
boolean ret;
size_t size = 2 * nr_indices;
assert(( svga_render->vbuf_offset - svga_render->vdecl_offset) % svga_render->vertex_size == 0);
if (svga_render->ibuf_size < svga_render->ibuf_offset + size)
pipe_resource_reference(&svga_render->ibuf, NULL);
if (!svga_render->ibuf) {
svga_render->ibuf_size = MAX2(size, svga_render->ibuf_alloc_size);
svga_render->ibuf = pipe_buffer_create(screen,
PIPE_BIND_INDEX_BUFFER,
PIPE_USAGE_STREAM,
svga_render->ibuf_size);
svga_render->ibuf_offset = 0;
}
pipe_buffer_write_nooverlap(&svga->pipe, svga_render->ibuf,
svga_render->ibuf_offset, 2 * nr_indices, indices);
/* off to hardware */
svga_vbuf_submit_state(svga_render);
/* Need to call update_state() again as the draw module may have
* altered some of our state behind our backs. Testcase:
* redbook/polys.c
*/
svga_update_state_retry( svga, SVGA_STATE_HW_DRAW );
ret = svga_hwtnl_draw_range_elements(svga->hwtnl,
svga_render->ibuf,
2,
bias,
svga_render->min_index,
svga_render->max_index,
svga_render->prim,
svga_render->ibuf_offset / 2, nr_indices);
if(ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = svga_hwtnl_draw_range_elements(svga->hwtnl,
svga_render->ibuf,
2,
bias,
svga_render->min_index,
svga_render->max_index,
svga_render->prim,
svga_render->ibuf_offset / 2, nr_indices);
svga->swtnl.new_vbuf = TRUE;
assert(ret == PIPE_OK);
}
svga_render->ibuf_offset += size;
}
enum pipe_error
svga_swtnl_update_vdecl( struct svga_context *svga )
{
struct svga_vbuf_render *svga_render = svga_vbuf_render(svga->swtnl.backend);
struct draw_context *draw = svga->swtnl.draw;
struct vertex_info *vinfo = &svga_render->vertex_info;
SVGA3dVertexDecl vdecl[PIPE_MAX_ATTRIBS];
const enum interp_mode colorInterp =
svga->curr.rast->templ.flatshade ? INTERP_CONSTANT : INTERP_LINEAR;
struct svga_fragment_shader *fs = svga->curr.fs;
int offset = 0;
int nr_decls = 0;
int src;
unsigned i;
memset(vinfo, 0, sizeof(*vinfo));
memset(vdecl, 0, sizeof(vdecl));
/* always add position */
src = draw_find_shader_output(draw, TGSI_SEMANTIC_POSITION, 0);
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_LINEAR, src);
vinfo->attrib[0].emit = EMIT_4F;
vdecl[0].array.offset = offset;
vdecl[0].identity.type = SVGA3D_DECLTYPE_FLOAT4;
vdecl[0].identity.usage = SVGA3D_DECLUSAGE_POSITIONT;
vdecl[0].identity.usageIndex = 0;
offset += 16;
nr_decls++;
for (i = 0; i < fs->base.info.num_inputs; i++) {
const unsigned sem_name = fs->base.info.input_semantic_name[i];
const unsigned sem_index = fs->base.info.input_semantic_index[i];
src = draw_find_shader_output(draw, sem_name, sem_index);
vdecl[nr_decls].array.offset = offset;
vdecl[nr_decls].identity.usageIndex = sem_index;
switch (sem_name) {
case TGSI_SEMANTIC_COLOR:
draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src);
vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_COLOR;
vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4;
offset += 16;
nr_decls++;
break;
case TGSI_SEMANTIC_GENERIC:
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD;
vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4;
vdecl[nr_decls].identity.usageIndex =
svga_remap_generic_index(fs->generic_remap_table, sem_index);
offset += 16;
nr_decls++;
break;
case TGSI_SEMANTIC_FOG:
draw_emit_vertex_attr(vinfo, EMIT_1F, INTERP_PERSPECTIVE, src);
vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD;
vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT1;
assert(vdecl[nr_decls].identity.usageIndex == 0);
offset += 4;
nr_decls++;
break;
case TGSI_SEMANTIC_POSITION:
/* generated internally, not a vertex shader output */
break;
default:
assert(0);
}
}
draw_compute_vertex_size(vinfo);
svga_render->vdecl_count = nr_decls;
for (i = 0; i < svga_render->vdecl_count; i++)
vdecl[i].array.stride = offset;
if (memcmp(svga_render->vdecl, vdecl, sizeof(vdecl)) == 0)
return 0;
memcpy(svga_render->vdecl, vdecl, sizeof(vdecl));
svga->swtnl.new_vdecl = TRUE;
return 0;
}
