/**********************************************************
* Copyright 2009-2011 VMware, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*********************************************************
* Authors:
* Zack Rusin <zackr-at-vmware-dot-com>
* Thomas Hellstrom <thellstrom-at-vmware-dot-com>
*/
#include "xa_context.h"
#include "xa_priv.h"
#include "cso_cache/cso_context.h"
#include "util/u_inlines.h"
#include "util/u_rect.h"
#include "util/u_surface.h"
#include "pipe/p_context.h"
XA_EXPORT void
xa_context_flush(struct xa_context *ctx)
{
if (ctx->last_fence) {
struct pipe_screen *screen = ctx->xa->screen;
screen->fence_reference(screen, &ctx->last_fence, NULL);
}
ctx->pipe->flush(ctx->pipe, &ctx->last_fence, 0);
}
XA_EXPORT struct xa_context *
xa_context_default(struct xa_tracker *xa)
{
return xa->default_ctx;
}
XA_EXPORT struct xa_context *
xa_context_create(struct xa_tracker *xa)
{
struct xa_context *ctx = calloc(1, sizeof(*ctx));
ctx->xa = xa;
ctx->pipe = xa->screen->context_create(xa->screen, NULL, 0);
ctx->cso = cso_create_context(ctx->pipe);
ctx->shaders = xa_shaders_create(ctx);
renderer_init_state(ctx);
return ctx;
}
XA_EXPORT void
xa_context_destroy(struct xa_context *r)
{
struct pipe_resource **vsbuf = &r->vs_const_buffer;
struct pipe_resource **fsbuf = &r->fs_const_buffer;
if (*vsbuf)
pipe_resource_reference(vsbuf, NULL);
if (*fsbuf)
pipe_resource_reference(fsbuf, NULL);
if (r->shaders) {
xa_shaders_destroy(r->shaders);
r->shaders = NULL;
}
xa_ctx_sampler_views_destroy(r);
if (r->srf)
pipe_surface_reference(&r->srf, NULL);
if (r->cso) {
cso_destroy_context(r->cso);
r->cso = NULL;
}
r->pipe->destroy(r->pipe);
}
XA_EXPORT int
xa_surface_dma(struct xa_context *ctx,
struct xa_surface *srf,
void *data,
unsigned int pitch,
int to_surface, struct xa_box *boxes, unsigned int num_boxes)
{
struct pipe_transfer *transfer;
void *map;
int w, h, i;
enum pipe_transfer_usage transfer_direction;
struct pipe_context *pipe = ctx->pipe;
transfer_direction = (to_surface ? PIPE_TRANSFER_WRITE :
PIPE_TRANSFER_READ);
for (i = 0; i < num_boxes; ++i, ++boxes) {
w = boxes->x2 - boxes->x1;
h = boxes->y2 - boxes->y1;
map = pipe_transfer_map(pipe, srf->tex, 0, 0,
transfer_direction, boxes->x1, boxes->y1,
w, h, &transfer);
if (!map)
return -XA_ERR_NORES;
if (to_surface) {
util_copy_rect(map, srf->tex->format, transfer->stride,
0, 0, w, h, data, pitch, boxes->x1, boxes->y1);
} else {
util_copy_rect(data, srf->tex->format, pitch,
boxes->x1, boxes->y1, w, h, map, transfer->stride, 0,
0);
}
pipe->transfer_unmap(pipe, transfer);
}
return XA_ERR_NONE;
}
XA_EXPORT void *
xa_surface_map(struct xa_context *ctx,
struct xa_surface *srf, unsigned int usage)
{
void *map;
unsigned int gallium_usage = 0;
struct pipe_context *pipe = ctx->pipe;
/*
* A surface may only have a single map.
*/
if (srf->transfer)
return NULL;
if (usage & XA_MAP_READ)
gallium_usage |= PIPE_TRANSFER_READ;
if (usage & XA_MAP_WRITE)
gallium_usage |= PIPE_TRANSFER_WRITE;
if (usage & XA_MAP_MAP_DIRECTLY)
gallium_usage |= PIPE_TRANSFER_MAP_DIRECTLY;
if (usage & XA_MAP_UNSYNCHRONIZED)
gallium_usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
if (usage & XA_MAP_DONTBLOCK)
gallium_usage |= PIPE_TRANSFER_DONTBLOCK;
if (usage & XA_MAP_DISCARD_WHOLE_RESOURCE)
gallium_usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
if (!(gallium_usage & (PIPE_TRANSFER_READ_WRITE)))
return NULL;
map = pipe_transfer_map(pipe, srf->tex, 0, 0,
gallium_usage, 0, 0,
srf->tex->width0, srf->tex->height0,
&srf->transfer);
if (!map)
return NULL;
srf->mapping_pipe = pipe;
return map;
}
XA_EXPORT void
xa_surface_unmap(struct xa_surface *srf)
{
if (srf->transfer) {
struct pipe_context *pipe = srf->mapping_pipe;
pipe->transfer_unmap(pipe, srf->transfer);
srf->transfer = NULL;
}
}
int
xa_ctx_srf_create(struct xa_context *ctx, struct xa_surface *dst)
{
struct pipe_screen *screen = ctx->pipe->screen;
struct pipe_surface srf_templ;
/*
* Cache surfaces unless we change render target
*/
if (ctx->srf) {
if (ctx->srf->texture == dst->tex)
return XA_ERR_NONE;
pipe_surface_reference(&ctx->srf, NULL);
}
if (!screen->is_format_supported(screen, dst->tex->format,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_RENDER_TARGET))
return -XA_ERR_INVAL;
u_surface_default_template(&srf_templ, dst->tex);
ctx->srf = ctx->pipe->create_surface(ctx->pipe, dst->tex, &srf_templ);
if (!ctx->srf)
return -XA_ERR_NORES;
return XA_ERR_NONE;
}
void
xa_ctx_srf_destroy(struct xa_context *ctx)
{
/*
* Cache surfaces unless we change render target.
* Final destruction on context destroy.
*/
}
XA_EXPORT int
xa_copy_prepare(struct xa_context *ctx,
struct xa_surface *dst, struct xa_surface *src)
{
if (src == dst)
return -XA_ERR_INVAL;
if (src->tex->format != dst->tex->format) {
int ret = xa_ctx_srf_create(ctx, dst);
if (ret != XA_ERR_NONE)
return ret;
renderer_copy_prepare(ctx, ctx->srf, src->tex,
src->fdesc.xa_format,
dst->fdesc.xa_format);
ctx->simple_copy = 0;
} else
ctx->simple_copy = 1;
ctx->src = src;
ctx->dst = dst;
xa_ctx_srf_destroy(ctx);
return 0;
}
XA_EXPORT void
xa_copy(struct xa_context *ctx,
int dx, int dy, int sx, int sy, int width, int height)
{
struct pipe_box src_box;
xa_scissor_update(ctx, dx, dy, dx + width, dy + height);
if (ctx->simple_copy) {
u_box_2d(sx, sy, width, height, &src_box);
ctx->pipe->resource_copy_region(ctx->pipe,
ctx->dst->tex, 0, dx, dy, 0,
ctx->src->tex,
0, &src_box);
} else
renderer_copy(ctx, dx, dy, sx, sy, width, height,
(float) ctx->src->tex->width0,
(float) ctx->src->tex->height0);
}
XA_EXPORT void
xa_copy_done(struct xa_context *ctx)
{
if (!ctx->simple_copy) {
renderer_draw_flush(ctx);
}
}
static void
bind_solid_blend_state(struct xa_context *ctx)
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(struct pipe_blend_state));
blend.rt[0].blend_enable = 0;
blend.rt[0].colormask = PIPE_MASK_RGBA;
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
cso_set_blend(ctx->cso, &blend);
}
XA_EXPORT int
xa_solid_prepare(struct xa_context *ctx, struct xa_surface *dst,
uint32_t fg)
{
unsigned vs_traits, fs_traits;
struct xa_shader shader;
int ret;
ret = xa_ctx_srf_create(ctx, dst);
if (ret != XA_ERR_NONE)
return ret;
if (ctx->srf->format == PIPE_FORMAT_L8_UNORM)
xa_pixel_to_float4_a8(fg, ctx->solid_color);
else
xa_pixel_to_float4(fg, ctx->solid_color);
ctx->has_solid_color = 1;
ctx->dst = dst;
#if 0
debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n",
(fg >> 24) & 0xff, (fg >> 16) & 0xff,
(fg >> 8) & 0xff, (fg >> 0) & 0xff,
exa->solid_color[0], exa->solid_color[1],
exa->solid_color[2], exa->solid_color[3]);
#endif
vs_traits = VS_SOLID_FILL;
fs_traits = FS_SOLID_FILL;
renderer_bind_destination(ctx, ctx->srf);
bind_solid_blend_state(ctx);
cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits);
cso_set_vertex_shader_handle(ctx->cso, shader.vs);
cso_set_fragment_shader_handle(ctx->cso, shader.fs);
renderer_begin_solid(ctx);
xa_ctx_srf_destroy(ctx);
return XA_ERR_NONE;
}
XA_EXPORT void
xa_solid(struct xa_context *ctx, int x, int y, int width, int height)
{
xa_scissor_update(ctx, x, y, x + width, y + height);
renderer_solid(ctx, x, y, x + width, y + height, ctx->solid_color);
}
XA_EXPORT void
xa_solid_done(struct xa_context *ctx)
{
renderer_draw_flush(ctx);
ctx->comp = NULL;
ctx->has_solid_color = FALSE;
ctx->num_bound_samplers = 0;
}
XA_EXPORT struct xa_fence *
xa_fence_get(struct xa_context *ctx)
{
struct xa_fence *fence = calloc(1, sizeof(*fence));
struct pipe_screen *screen = ctx->xa->screen;
if (!fence)
return NULL;
fence->xa = ctx->xa;
if (ctx->last_fence == NULL)
fence->pipe_fence = NULL;
else
screen->fence_reference(screen, &fence->pipe_fence, ctx->last_fence);
return fence;
}
XA_EXPORT int
xa_fence_wait(struct xa_fence *fence, uint64_t timeout)
{
if (!fence)
return XA_ERR_NONE;
if (fence->pipe_fence) {
struct pipe_screen *screen = fence->xa->screen;
boolean timed_out;
timed_out = !screen->fence_finish(screen, NULL, fence->pipe_fence, timeout);
if (timed_out)
return -XA_ERR_BUSY;
screen->fence_reference(screen, &fence->pipe_fence, NULL);
}
return XA_ERR_NONE;
}
XA_EXPORT void
xa_fence_destroy(struct xa_fence *fence)
{
if (!fence)
return;
if (fence->pipe_fence) {
struct pipe_screen *screen = fence->xa->screen;
screen->fence_reference(screen, &fence->pipe_fence, NULL);
}
free(fence);
}
void
xa_ctx_sampler_views_destroy(struct xa_context *ctx)
{
int i;
for (i = 0; i < ctx->num_bound_samplers; ++i)
pipe_sampler_view_reference(&ctx->bound_sampler_views[i], NULL);
ctx->num_bound_samplers = 0;
}