static void
sp_flush_tile(struct softpipe_tile_cache* tc, unsigned pos)
{
if (!tc->tile_addrs[pos].bits.invalid) {
if (tc->depth_stencil) {
pipe_put_tile_raw(tc->pipe, tc->transfer,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->entries[pos]->data.depth32, 0/*STRIDE*/);
}
else {
if (util_format_is_pure_uint(tc->surface->format)) {
pipe_put_tile_ui_format(tc->pipe, tc->transfer,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(unsigned *) tc->entries[pos]->data.colorui128);
} else if (util_format_is_pure_sint(tc->surface->format)) {
pipe_put_tile_i_format(tc->pipe, tc->transfer,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(int *) tc->entries[pos]->data.colori128);
} else {
pipe_put_tile_rgba_format(tc->pipe, tc->transfer,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(float *) tc->entries[pos]->data.color);
}
}
tc->tile_addrs[pos].bits.invalid = 1; /* mark as empty */
}
}
static void
st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
GLsizei width, GLsizei height,
GLint dstx, GLint dsty, GLenum type)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct pipe_screen *screen = pipe->screen;
struct st_renderbuffer *rbRead;
void *driver_vp, *driver_fp;
struct pipe_resource *pt;
struct pipe_sampler_view *sv[2];
int num_sampler_view = 1;
GLfloat *color;
enum pipe_format srcFormat, texFormat;
GLboolean invertTex = GL_FALSE;
GLint readX, readY, readW, readH;
GLuint sample_count;
struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
struct st_fp_variant *fpv;
st_validate_state(st);
if (type == GL_STENCIL) {
/* can't use texturing to do stencil */
copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
return;
}
if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type))
return;
/*
* The subsequent code implements glCopyPixels by copying the source
* pixels into a temporary texture that's then applied to a textured quad.
* When we draw the textured quad, all the usual per-fragment operations
* are handled.
*/
/*
* Get vertex/fragment shaders
*/
if (type == GL_COLOR) {
rbRead = st_get_color_read_renderbuffer(ctx);
color = NULL;
fpv = get_color_fp_variant(st);
driver_fp = fpv->driver_shader;
driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
if (st->pixel_xfer.pixelmap_enabled) {
sv[1] = st->pixel_xfer.pixelmap_sampler_view;
num_sampler_view++;
}
}
else {
assert(type == GL_DEPTH);
rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
driver_fp = fpv->driver_shader;
driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
}
/* update fragment program constants */
st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
if (rbRead->Base.Wrapped)
rbRead = st_renderbuffer(rbRead->Base.Wrapped);
sample_count = rbRead->texture->nr_samples;
/* I believe this would be legal, presumably would need to do a resolve
for color, and for depth/stencil spec says to just use one of the
depth/stencil samples per pixel? Need some transfer clarifications. */
assert(sample_count < 2);
srcFormat = rbRead->texture->format;
if (screen->is_format_supported(screen, srcFormat, st->internal_target,
sample_count,
PIPE_BIND_SAMPLER_VIEW)) {
texFormat = srcFormat;
}
else {
/* srcFormat can't be used as a texture format */
if (type == GL_DEPTH) {
texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
GL_NONE, GL_NONE, st->internal_target,
sample_count, PIPE_BIND_DEPTH_STENCIL);
assert(texFormat != PIPE_FORMAT_NONE);
}
else {
/* default color format */
texFormat = st_choose_format(screen, GL_RGBA,
GL_NONE, GL_NONE, st->internal_target,
sample_count, PIPE_BIND_SAMPLER_VIEW);
assert(texFormat != PIPE_FORMAT_NONE);
}
}
/* Invert src region if needed */
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
srcy = ctx->ReadBuffer->Height - srcy - height;
invertTex = !invertTex;
}
/* Clip the read region against the src buffer bounds.
* We'll still allocate a temporary buffer/texture for the original
* src region size but we'll only read the region which is on-screen.
* This may mean that we draw garbage pixels into the dest region, but
* that's expected.
*/
readX = srcx;
readY = srcy;
readW = width;
readH = height;
_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
readW = MAX2(0, readW);
readH = MAX2(0, readH);
/* alloc temporary texture */
pt = alloc_texture(st, width, height, texFormat);
if (!pt)
return;
sv[0] = st_create_texture_sampler_view(st->pipe, pt);
if (!sv[0]) {
pipe_resource_reference(&pt, NULL);
return;
}
/* Make temporary texture which is a copy of the src region.
*/
if (srcFormat == texFormat) {
struct pipe_box src_box;
u_box_2d(readX, readY, readW, readH, &src_box);
/* copy source framebuffer surface into mipmap/texture */
pipe->resource_copy_region(pipe,
pt, /* dest tex */
0, /* dest lvl */
pack.SkipPixels, pack.SkipRows, 0, /* dest pos */
rbRead->texture, /* src tex */
rbRead->rtt_level, /* src lvl */
&src_box);
}
else {
/* CPU-based fallback/conversion */
struct pipe_transfer *ptRead =
pipe_get_transfer(st->pipe, rbRead->texture,
rbRead->rtt_level,
rbRead->rtt_face + rbRead->rtt_slice,
PIPE_TRANSFER_READ,
readX, readY, readW, readH);
struct pipe_transfer *ptTex;
enum pipe_transfer_usage transfer_usage;
if (ST_DEBUG & DEBUG_FALLBACK)
debug_printf("%s: fallback processing\n", __FUNCTION__);
if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
transfer_usage = PIPE_TRANSFER_READ_WRITE;
else
transfer_usage = PIPE_TRANSFER_WRITE;
ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,
0, 0, width, height);
/* copy image from ptRead surface to ptTex surface */
if (type == GL_COLOR) {
/* alternate path using get/put_tile() */
GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
enum pipe_format readFormat, drawFormat;
readFormat = util_format_linear(rbRead->texture->format);
drawFormat = util_format_linear(pt->format);
pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH,
readFormat, buf);
pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
readW, readH, drawFormat, buf);
free(buf);
}
else {
/* GL_DEPTH */
GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf);
pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
readW, readH, buf);
free(buf);
}
pipe->transfer_destroy(pipe, ptRead);
pipe->transfer_destroy(pipe, ptTex);
}
/* OK, the texture 'pt' contains the src image/pixels. Now draw a
* textured quad with that texture.
*/
draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
sv,
num_sampler_view,
driver_vp,
driver_fp,
color, invertTex, GL_FALSE, GL_FALSE);
pipe_resource_reference(&pt, NULL);
pipe_sampler_view_reference(&sv[0], NULL);
}
/**
* Get a tile from the cache.
* \param x, y position of tile, in pixels
*/
struct softpipe_cached_tile *
sp_find_cached_tile(struct softpipe_tile_cache *tc,
union tile_address addr )
{
struct pipe_transfer *pt = tc->transfer;
/* cache pos/entry: */
const int pos = CACHE_POS(addr.bits.x,
addr.bits.y);
struct softpipe_cached_tile *tile = tc->entries[pos];
if (!tile) {
tile = sp_alloc_tile(tc);
tc->entries[pos] = tile;
}
if (addr.value != tc->tile_addrs[pos].value) {
assert(pt->resource);
if (tc->tile_addrs[pos].bits.invalid == 0) {
/* put dirty tile back in framebuffer */
if (tc->depth_stencil) {
pipe_put_tile_raw(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tile->data.depth32, 0/*STRIDE*/);
}
else {
if (util_format_is_pure_uint(tc->surface->format)) {
pipe_put_tile_ui_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(unsigned *) tile->data.colorui128);
} else if (util_format_is_pure_sint(tc->surface->format)) {
pipe_put_tile_i_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(int *) tile->data.colori128);
} else {
pipe_put_tile_rgba_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(float *) tile->data.color);
}
}
}
tc->tile_addrs[pos] = addr;
if (is_clear_flag_set(tc->clear_flags, addr)) {
/* don't get tile from framebuffer, just clear it */
if (tc->depth_stencil) {
clear_tile(tile, pt->resource->format, tc->clear_val);
}
else {
clear_tile_rgba(tile, pt->resource->format, &tc->clear_color);
}
clear_clear_flag(tc->clear_flags, addr);
}
else {
/* get new tile data from transfer */
if (tc->depth_stencil) {
pipe_get_tile_raw(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tile->data.depth32, 0/*STRIDE*/);
}
else {
if (util_format_is_pure_uint(tc->surface->format)) {
pipe_get_tile_ui_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(unsigned *) tile->data.colorui128);
} else if (util_format_is_pure_sint(tc->surface->format)) {
pipe_get_tile_i_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(int *) tile->data.colori128);
} else {
pipe_get_tile_rgba_format(tc->pipe, pt,
tc->tile_addrs[pos].bits.x * TILE_SIZE,
tc->tile_addrs[pos].bits.y * TILE_SIZE,
TILE_SIZE, TILE_SIZE,
tc->surface->format,
(float *) tile->data.color);
}
}
}
}
tc->last_tile = tile;
tc->last_tile_addr = addr;
return tile;
}
