/**
* Set renderer sampler and view states.
*
* This function modifies samplers and fragment_sampler_views states.
*/
static void renderer_set_samplers(struct renderer *r,
uint num_views,
struct pipe_sampler_view **views)
{
struct pipe_sampler_state sampler;
unsigned tex_filter = PIPE_TEX_FILTER_NEAREST;
unsigned tex_wrap = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
uint i;
memset(&sampler, 0, sizeof(sampler));
sampler.min_img_filter = tex_filter;
sampler.mag_img_filter = tex_filter;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.wrap_s = tex_wrap;
sampler.wrap_t = tex_wrap;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.normalized_coords = 1;
/* set samplers */
for (i = 0; i < num_views; i++)
cso_single_sampler(r->cso, PIPE_SHADER_FRAGMENT, i, &sampler);
cso_single_sampler_done(r->cso, PIPE_SHADER_FRAGMENT);
/* set views */
cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, num_views, views);
}
static void
update_textures(struct st_context *st,
unsigned shader_stage,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLuint unit, new_count;
if (samplers_used == 0x0 && old_max == 0)
return;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
retval = update_single_texture(st, &sampler_view, texUnit);
if (retval == GL_FALSE)
continue;
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
/* Ex: if old_max = 3 and *num_textures = 1, we need to pass an
* array of views={X, NULL, NULL} to unref the old texture views
* at positions [1] and [2].
*/
new_count = MAX2(*num_textures, old_max);
assert(new_count <= max_units);
cso_set_sampler_views(st->cso_context,
shader_stage,
new_count,
sampler_views);
}
static void
update_textures(struct st_context *st,
gl_shader_stage mesa_shader,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLuint unit;
struct gl_shader_program *shader =
st->ctx->_Shader->CurrentProgram[mesa_shader];
unsigned glsl_version = shader ? shader->Version : 0;
unsigned shader_stage = st_shader_stage_to_ptarget(mesa_shader);
if (samplers_used == 0x0 && old_max == 0)
return;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
retval = update_single_texture(st, &sampler_view, texUnit,
glsl_version);
if (retval == GL_FALSE)
continue;
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
*num_textures,
sampler_views);
}
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 width, height;
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;
width = ctx->srf->width;
height = ctx->srf->height;
#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, width, height);
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;
}
/**
* Set custom renderer fragment shader, and optionally set samplers and views
* and upload the fragment constant buffer.
*
* This function modifies fragment_shader, samplers and fragment_sampler_views
* states.
*/
static void renderer_set_custom_fs(struct renderer *renderer,
void *fs,
const struct pipe_sampler_state **samplers,
struct pipe_sampler_view **views,
VGint num_samplers,
const void *const_buffer,
VGint const_buffer_len)
{
cso_set_fragment_shader_handle(renderer->cso, fs);
/* set samplers and views */
if (num_samplers) {
cso_set_samplers(renderer->cso, PIPE_SHADER_FRAGMENT, num_samplers, samplers);
cso_set_sampler_views(renderer->cso, PIPE_SHADER_FRAGMENT, num_samplers, views);
}
/* upload fs constant buffer */
if (const_buffer_len) {
struct pipe_resource *cbuf = renderer->fs_cbuf;
if (!cbuf || renderer->fs_cbuf_len != const_buffer_len ||
memcmp(renderer->fs_cbuf_data, const_buffer, const_buffer_len)) {
pipe_resource_reference(&cbuf, NULL);
cbuf = pipe_buffer_create(renderer->pipe->screen,
PIPE_BIND_CONSTANT_BUFFER, PIPE_USAGE_STATIC,
const_buffer_len);
pipe_buffer_write(renderer->pipe, cbuf, 0,
const_buffer_len, const_buffer);
pipe_set_constant_buffer(renderer->pipe,
PIPE_SHADER_FRAGMENT, 0, cbuf);
renderer->fs_cbuf = cbuf;
if (const_buffer_len <= sizeof(renderer->fs_cbuf_data)) {
memcpy(renderer->fs_cbuf_data, const_buffer, const_buffer_len);
renderer->fs_cbuf_len = const_buffer_len;
}
else {
renderer->fs_cbuf_len = 0;
}
}
}
}
static void draw(struct program *p)
{
const struct pipe_sampler_state *samplers[] = {&p->sampler};
/* set the render target */
cso_set_framebuffer(p->cso, &p->framebuffer);
/* clear the render target */
p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR, &p->clear_color, 0, 0);
/* set misc state we care about */
cso_set_blend(p->cso, &p->blend);
cso_set_depth_stencil_alpha(p->cso, &p->depthstencil);
cso_set_rasterizer(p->cso, &p->rasterizer);
cso_set_viewport(p->cso, &p->viewport);
/* sampler */
cso_set_samplers(p->cso, PIPE_SHADER_FRAGMENT, 1, samplers);
/* texture sampler view */
cso_set_sampler_views(p->cso, PIPE_SHADER_FRAGMENT, 1, &p->view);
/* shaders */
cso_set_fragment_shader_handle(p->cso, p->fs);
cso_set_vertex_shader_handle(p->cso, p->vs);
/* vertex element data */
cso_set_vertex_elements(p->cso, 2, p->velem);
util_draw_vertex_buffer(p->pipe, p->cso,
p->vbuf, 0, 0,
PIPE_PRIM_QUADS,
4, /* verts */
2); /* attribs/vert */
p->pipe->flush(p->pipe, NULL, 0);
debug_dump_surface_bmp(p->pipe, "result.bmp", p->framebuffer.cbufs[0]);
}
boolean xorg_solid_bind_state(struct exa_context *exa,
struct exa_pixmap_priv *pixmap,
Pixel fg)
{
struct pipe_surface *dst_surf = xorg_gpu_surface(exa->pipe, pixmap);
unsigned vs_traits, fs_traits;
struct xorg_shader shader;
pixel_to_float4(fg, exa->solid_color, pixmap->tex->format);
exa->has_solid_color = TRUE;
#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(exa->renderer, dst_surf,
pixmap->width, pixmap->height);
bind_blend_state(exa, PictOpSrc, NULL, NULL, NULL);
cso_set_samplers(exa->renderer->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
cso_set_sampler_views(exa->renderer->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
shader = xorg_shaders_get(exa->renderer->shaders, vs_traits, fs_traits);
cso_set_vertex_shader_handle(exa->renderer->cso, shader.vs);
cso_set_fragment_shader_handle(exa->renderer->cso, shader.fs);
renderer_begin_solid(exa->renderer);
pipe_surface_reference(&dst_surf, NULL);
return TRUE;
}
void
renderer_copy_prepare(struct xa_context *r,
struct pipe_surface *dst_surface,
struct pipe_resource *src_texture,
const enum xa_formats src_xa_format,
const enum xa_formats dst_xa_format)
{
struct pipe_context *pipe = r->pipe;
struct pipe_screen *screen = pipe->screen;
struct xa_shader shader;
uint32_t fs_traits = FS_COMPOSITE;
assert(screen->is_format_supported(screen, dst_surface->format,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_RENDER_TARGET));
(void)screen;
/* set misc state we care about */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
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;
blend.rt[0].colormask = PIPE_MASK_RGBA;
cso_set_blend(r->cso, &blend);
}
/* sampler */
{
struct pipe_sampler_state sampler;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.normalized_coords = 1;
cso_single_sampler(r->cso, PIPE_SHADER_FRAGMENT, 0, &sampler);
cso_single_sampler_done(r->cso, PIPE_SHADER_FRAGMENT);
}
renderer_bind_destination(r, dst_surface,
dst_surface->width, dst_surface->height);
/* texture/sampler view */
{
struct pipe_sampler_view templ;
struct pipe_sampler_view *src_view;
u_sampler_view_default_template(&templ,
src_texture, src_texture->format);
src_view = pipe->create_sampler_view(pipe, src_texture, &templ);
cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view);
pipe_sampler_view_reference(&src_view, NULL);
}
/* shaders */
if (src_texture->format == PIPE_FORMAT_L8_UNORM)
fs_traits |= FS_SRC_LUMINANCE;
if (dst_surface->format == PIPE_FORMAT_L8_UNORM)
fs_traits |= FS_DST_LUMINANCE;
if (xa_format_a(dst_xa_format) != 0 &&
xa_format_a(src_xa_format) == 0)
fs_traits |= FS_SRC_SET_ALPHA;
shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits);
cso_set_vertex_shader_handle(r->cso, shader.vs);
cso_set_fragment_shader_handle(r->cso, shader.fs);
r->buffer_size = 0;
r->attrs_per_vertex = 2;
}
static void
bind_samplers(struct exa_context *exa, int op,
PicturePtr pSrcPicture, PicturePtr pMaskPicture,
PicturePtr pDstPicture,
struct exa_pixmap_priv *pSrc,
struct exa_pixmap_priv *pMask,
struct exa_pixmap_priv *pDst)
{
struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS] = {0};
struct pipe_sampler_state src_sampler, mask_sampler;
struct pipe_sampler_view view_templ;
struct pipe_sampler_view *src_view;
struct pipe_context *pipe = exa->pipe;
exa->num_bound_samplers = 0;
memset(&src_sampler, 0, sizeof(struct pipe_sampler_state));
memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state));
if (pSrcPicture && pSrc) {
if (exa->has_solid_color) {
debug_assert(!"solid color with textures");
samplers[0] = NULL;
pipe_sampler_view_reference(&exa->bound_sampler_views[0], NULL);
} else {
unsigned src_wrap = render_repeat_to_gallium(
pSrcPicture->repeatType);
int filter;
render_filter_to_gallium(pSrcPicture->filter, &filter);
src_sampler.wrap_s = src_wrap;
src_sampler.wrap_t = src_wrap;
src_sampler.min_img_filter = filter;
src_sampler.mag_img_filter = filter;
src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
src_sampler.normalized_coords = 1;
samplers[0] = &src_sampler;
exa->num_bound_samplers = 1;
u_sampler_view_default_template(&view_templ,
pSrc->tex,
pSrc->tex->format);
src_view = pipe->create_sampler_view(pipe, pSrc->tex, &view_templ);
pipe_sampler_view_reference(&exa->bound_sampler_views[0], NULL);
exa->bound_sampler_views[0] = src_view;
}
}
if (pMaskPicture && pMask) {
unsigned mask_wrap = render_repeat_to_gallium(
pMaskPicture->repeatType);
int filter;
render_filter_to_gallium(pMaskPicture->filter, &filter);
mask_sampler.wrap_s = mask_wrap;
mask_sampler.wrap_t = mask_wrap;
mask_sampler.min_img_filter = filter;
mask_sampler.mag_img_filter = filter;
src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
mask_sampler.normalized_coords = 1;
samplers[1] = &mask_sampler;
exa->num_bound_samplers = 2;
u_sampler_view_default_template(&view_templ,
pMask->tex,
pMask->tex->format);
src_view = pipe->create_sampler_view(pipe, pMask->tex, &view_templ);
pipe_sampler_view_reference(&exa->bound_sampler_views[1], NULL);
exa->bound_sampler_views[1] = src_view;
}
cso_set_samplers(exa->renderer->cso, PIPE_SHADER_FRAGMENT,
exa->num_bound_samplers,
(const struct pipe_sampler_state **)samplers);
cso_set_sampler_views(exa->renderer->cso, PIPE_SHADER_FRAGMENT,
exa->num_bound_samplers,
exa->bound_sampler_views);
}
/**
* Copy pixel block from src surface to dst surface.
* Overlapping regions are acceptable.
* Flipping and stretching are supported.
* \param filter one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR
* \param writemask controls which channels in the dest surface are sourced
* from the src surface. Disabled channels are sourced
* from (0,0,0,1).
*/
void
util_blit_pixels(struct blit_state *ctx,
struct pipe_resource *src_tex,
unsigned src_level,
int srcX0, int srcY0,
int srcX1, int srcY1,
int srcZ0,
struct pipe_surface *dst,
int dstX0, int dstY0,
int dstX1, int dstY1,
float z, uint filter,
uint writemask, uint zs_writemask)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
enum pipe_format src_format, dst_format;
struct pipe_sampler_view *sampler_view = NULL;
struct pipe_sampler_view sv_templ;
struct pipe_surface *dst_surface;
struct pipe_framebuffer_state fb;
const int srcW = abs(srcX1 - srcX0);
const int srcH = abs(srcY1 - srcY0);
unsigned offset;
boolean overlap;
float s0, t0, s1, t1;
boolean normalized;
boolean is_stencil, is_depth, blit_depth, blit_stencil;
const struct util_format_description *src_desc =
util_format_description(src_tex->format);
assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
filter == PIPE_TEX_MIPFILTER_LINEAR);
assert(src_level <= src_tex->last_level);
/* do the regions overlap? */
overlap = src_tex == dst->texture &&
dst->u.tex.level == src_level &&
dst->u.tex.first_layer == srcZ0 &&
regions_overlap(srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1);
src_format = util_format_linear(src_tex->format);
dst_format = util_format_linear(dst->texture->format);
/* See whether we will blit depth or stencil. */
is_depth = util_format_has_depth(src_desc);
is_stencil = util_format_has_stencil(src_desc);
blit_depth = is_depth && (zs_writemask & BLIT_WRITEMASK_Z);
blit_stencil = is_stencil && (zs_writemask & BLIT_WRITEMASK_STENCIL);
assert((writemask && !zs_writemask && !is_depth && !is_stencil) ||
(!writemask && (blit_depth || blit_stencil)));
/*
* Check for simple case: no format conversion, no flipping, no stretching,
* no overlapping, same number of samples.
* Filter mode should not matter since there's no stretching.
*/
if (formats_compatible(src_format, dst_format) &&
src_tex->nr_samples == dst->texture->nr_samples &&
is_stencil == blit_stencil &&
is_depth == blit_depth &&
srcX0 < srcX1 &&
dstX0 < dstX1 &&
srcY0 < srcY1 &&
dstY0 < dstY1 &&
(dstX1 - dstX0) == (srcX1 - srcX0) &&
(dstY1 - dstY0) == (srcY1 - srcY0) &&
!overlap) {
struct pipe_box src_box;
src_box.x = srcX0;
src_box.y = srcY0;
src_box.z = srcZ0;
src_box.width = srcW;
src_box.height = srcH;
src_box.depth = 1;
pipe->resource_copy_region(pipe,
dst->texture, dst->u.tex.level,
dstX0, dstY0, dst->u.tex.first_layer,/* dest */
src_tex, src_level,
&src_box);
return;
}
/* XXX Reading multisample textures is unimplemented. */
assert(src_tex->nr_samples <= 1);
if (src_tex->nr_samples > 1) {
return;
}
/* It's a mistake to call this function with a stencil format and
* without shader stencil export. We don't do software fallbacks here.
* Ignore stencil and only copy depth.
*/
if (blit_stencil && !ctx->has_stencil_export) {
blit_stencil = FALSE;
if (!blit_depth)
return;
}
if (dst_format == dst->format) {
dst_surface = dst;
} else {
struct pipe_surface templ = *dst;
templ.format = dst_format;
dst_surface = pipe->create_surface(pipe, dst->texture, &templ);
}
/* Create a temporary texture when src and dest alias.
*/
if (src_tex == dst_surface->texture &&
dst_surface->u.tex.level == src_level &&
dst_surface->u.tex.first_layer == srcZ0) {
/* Make a temporary texture which contains a copy of the source pixels.
* Then we'll sample from the temporary texture.
*/
struct pipe_resource texTemp;
struct pipe_resource *tex;
struct pipe_sampler_view sv_templ;
struct pipe_box src_box;
const int srcLeft = MIN2(srcX0, srcX1);
const int srcTop = MIN2(srcY0, srcY1);
if (srcLeft != srcX0) {
/* left-right flip */
int tmp = dstX0;
dstX0 = dstX1;
dstX1 = tmp;
}
if (srcTop != srcY0) {
/* up-down flip */
int tmp = dstY0;
dstY0 = dstY1;
dstY1 = tmp;
}
/* create temp texture */
memset(&texTemp, 0, sizeof(texTemp));
texTemp.target = ctx->internal_target;
texTemp.format = src_format;
texTemp.last_level = 0;
texTemp.width0 = srcW;
texTemp.height0 = srcH;
texTemp.depth0 = 1;
texTemp.array_size = 1;
texTemp.bind = PIPE_BIND_SAMPLER_VIEW;
tex = screen->resource_create(screen, &texTemp);
if (!tex)
return;
src_box.x = srcLeft;
src_box.y = srcTop;
src_box.z = srcZ0;
src_box.width = srcW;
src_box.height = srcH;
src_box.depth = 1;
/* load temp texture */
pipe->resource_copy_region(pipe,
tex, 0, 0, 0, 0, /* dest */
src_tex, src_level, &src_box);
normalized = tex->target != PIPE_TEXTURE_RECT;
if(normalized) {
s0 = 0.0f;
s1 = 1.0f;
t0 = 0.0f;
t1 = 1.0f;
}
else {
s0 = 0;
s1 = srcW;
t0 = 0;
t1 = srcH;
}
u_sampler_view_default_template(&sv_templ, tex, tex->format);
if (!blit_depth && blit_stencil) {
/* set a stencil-only format, e.g. Z24S8 --> X24S8 */
sv_templ.format = util_format_stencil_only(tex->format);
assert(sv_templ.format != PIPE_FORMAT_NONE);
}
sampler_view = pipe->create_sampler_view(pipe, tex, &sv_templ);
if (!sampler_view) {
pipe_resource_reference(&tex, NULL);
return;
}
pipe_resource_reference(&tex, NULL);
}
else {
/* Directly sample from the source resource/texture */
u_sampler_view_default_template(&sv_templ, src_tex, src_format);
if (!blit_depth && blit_stencil) {
/* set a stencil-only format, e.g. Z24S8 --> X24S8 */
sv_templ.format = util_format_stencil_only(src_format);
assert(sv_templ.format != PIPE_FORMAT_NONE);
}
sampler_view = pipe->create_sampler_view(pipe, src_tex, &sv_templ);
if (!sampler_view) {
return;
}
s0 = srcX0;
s1 = srcX1;
t0 = srcY0;
t1 = srcY1;
normalized = sampler_view->texture->target != PIPE_TEXTURE_RECT;
if(normalized)
{
s0 /= (float)(u_minify(sampler_view->texture->width0, src_level));
s1 /= (float)(u_minify(sampler_view->texture->width0, src_level));
t0 /= (float)(u_minify(sampler_view->texture->height0, src_level));
t1 /= (float)(u_minify(sampler_view->texture->height0, src_level));
}
}
assert(screen->is_format_supported(screen, sampler_view->format,
ctx->internal_target, sampler_view->texture->nr_samples,
PIPE_BIND_SAMPLER_VIEW));
assert(screen->is_format_supported(screen, dst_format, ctx->internal_target,
dst_surface->texture->nr_samples,
is_depth || is_stencil ? PIPE_BIND_DEPTH_STENCIL :
PIPE_BIND_RENDER_TARGET));
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_depth_stencil_alpha(ctx->cso);
cso_save_rasterizer(ctx->cso);
cso_save_sample_mask(ctx->cso);
cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_stream_outputs(ctx->cso);
cso_save_viewport(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_geometry_shader(ctx->cso);
cso_save_vertex_elements(ctx->cso);
cso_save_aux_vertex_buffer_slot(ctx->cso);
cso_save_render_condition(ctx->cso);
/* set misc state we care about */
if (writemask)
cso_set_blend(ctx->cso, &ctx->blend_write_color);
else
cso_set_blend(ctx->cso, &ctx->blend_keep_color);
cso_set_sample_mask(ctx->cso, ~0);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
cso_set_stream_outputs(ctx->cso, 0, NULL, 0);
cso_set_render_condition(ctx->cso, NULL, 0);
/* default sampler state */
ctx->sampler.normalized_coords = normalized;
ctx->sampler.min_img_filter = filter;
ctx->sampler.mag_img_filter = filter;
ctx->sampler.min_lod = src_level;
ctx->sampler.max_lod = src_level;
/* Depth stencil state, fragment shader and sampler setup depending on what
* we blit.
*/
if (blit_depth && blit_stencil) {
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
/* don't filter stencil */
ctx->sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &ctx->sampler);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_depthstencil);
set_depthstencil_fragment_shader(ctx, sampler_view->texture->target);
}
else if (blit_depth) {
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_depth);
set_depth_fragment_shader(ctx, sampler_view->texture->target);
}
else if (blit_stencil) {
/* don't filter stencil */
ctx->sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_write_stencil);
set_stencil_fragment_shader(ctx, sampler_view->texture->target);
}
else { /* color */
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil);
set_fragment_shader(ctx, writemask, sampler_view->texture->target);
}
cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT);
/* textures */
if (blit_depth && blit_stencil) {
/* Setup two samplers, one for depth and the other one for stencil. */
struct pipe_sampler_view templ;
struct pipe_sampler_view *views[2];
templ = *sampler_view;
templ.format = util_format_stencil_only(templ.format);
assert(templ.format != PIPE_FORMAT_NONE);
views[0] = sampler_view;
views[1] = pipe->create_sampler_view(pipe, views[0]->texture, &templ);
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 2, views);
pipe_sampler_view_reference(&views[1], NULL);
}
else {
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &sampler_view);
}
/* viewport */
ctx->viewport.scale[0] = 0.5f * dst_surface->width;
ctx->viewport.scale[1] = 0.5f * dst_surface->height;
ctx->viewport.scale[2] = 0.5f;
ctx->viewport.scale[3] = 1.0f;
ctx->viewport.translate[0] = 0.5f * dst_surface->width;
ctx->viewport.translate[1] = 0.5f * dst_surface->height;
ctx->viewport.translate[2] = 0.5f;
ctx->viewport.translate[3] = 0.0f;
cso_set_viewport(ctx->cso, &ctx->viewport);
set_vertex_shader(ctx);
cso_set_geometry_shader_handle(ctx->cso, NULL);
/* drawing dest */
memset(&fb, 0, sizeof(fb));
fb.width = dst_surface->width;
fb.height = dst_surface->height;
if (blit_depth || blit_stencil) {
fb.zsbuf = dst_surface;
} else {
fb.nr_cbufs = 1;
fb.cbufs[0] = dst_surface;
}
cso_set_framebuffer(ctx->cso, &fb);
/* draw quad */
offset = setup_vertex_data_tex(ctx,
(float) dstX0 / dst_surface->width * 2.0f - 1.0f,
(float) dstY0 / dst_surface->height * 2.0f - 1.0f,
(float) dstX1 / dst_surface->width * 2.0f - 1.0f,
(float) dstY1 / dst_surface->height * 2.0f - 1.0f,
s0, t0,
s1, t1,
z);
if (ctx->vbuf) {
util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf,
cso_get_aux_vertex_buffer_slot(ctx->cso),
offset,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_depth_stencil_alpha(ctx->cso);
cso_restore_rasterizer(ctx->cso);
cso_restore_sample_mask(ctx->cso);
cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_viewport(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_geometry_shader(ctx->cso);
cso_restore_vertex_elements(ctx->cso);
cso_restore_aux_vertex_buffer_slot(ctx->cso);
cso_restore_stream_outputs(ctx->cso);
cso_restore_render_condition(ctx->cso);
pipe_sampler_view_reference(&sampler_view, NULL);
if (dst_surface != dst)
pipe_surface_reference(&dst_surface, NULL);
}
/**
* Copy pixel block from src sampler view to dst surface.
*
* The sampler view's first_level field indicates the source
* mipmap level to use.
*
* The sampler view's first_layer indicate the layer to use, but for
* cube maps it must point to the first face. Face is passed in src_face.
*
* The main advantage over util_blit_pixels is that it allows to specify swizzles in
* pipe_sampler_view::swizzle_?.
*
* But there is no control over blitting Z and/or stencil.
*/
void
util_blit_pixels_tex(struct blit_state *ctx,
struct pipe_sampler_view *src_sampler_view,
int srcX0, int srcY0,
int srcX1, int srcY1,
unsigned src_face,
struct pipe_surface *dst,
int dstX0, int dstY0,
int dstX1, int dstY1,
float z, uint filter)
{
boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT;
struct pipe_framebuffer_state fb;
float s0, t0, s1, t1;
unsigned offset;
struct pipe_resource *tex = src_sampler_view->texture;
assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
filter == PIPE_TEX_MIPFILTER_LINEAR);
assert(tex);
assert(tex->width0 != 0);
assert(tex->height0 != 0);
s0 = (float) srcX0;
s1 = (float) srcX1;
t0 = (float) srcY0;
t1 = (float) srcY1;
if(normalized)
{
/* normalize according to the mipmap level's size */
int level = src_sampler_view->u.tex.first_level;
float w = (float) u_minify(tex->width0, level);
float h = (float) u_minify(tex->height0, level);
s0 /= w;
s1 /= w;
t0 /= h;
t1 /= h;
}
assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format,
PIPE_TEXTURE_2D,
dst->texture->nr_samples,
PIPE_BIND_RENDER_TARGET));
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_depth_stencil_alpha(ctx->cso);
cso_save_rasterizer(ctx->cso);
cso_save_sample_mask(ctx->cso);
cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_stream_outputs(ctx->cso);
cso_save_viewport(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_geometry_shader(ctx->cso);
cso_save_vertex_elements(ctx->cso);
cso_save_aux_vertex_buffer_slot(ctx->cso);
/* set misc state we care about */
cso_set_blend(ctx->cso, &ctx->blend_write_color);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil);
cso_set_sample_mask(ctx->cso, ~0);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
cso_set_stream_outputs(ctx->cso, 0, NULL, 0);
/* sampler */
ctx->sampler.normalized_coords = normalized;
ctx->sampler.min_img_filter = filter;
ctx->sampler.mag_img_filter = filter;
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT);
/* viewport */
ctx->viewport.scale[0] = 0.5f * dst->width;
ctx->viewport.scale[1] = 0.5f * dst->height;
ctx->viewport.scale[2] = 0.5f;
ctx->viewport.scale[3] = 1.0f;
ctx->viewport.translate[0] = 0.5f * dst->width;
ctx->viewport.translate[1] = 0.5f * dst->height;
ctx->viewport.translate[2] = 0.5f;
ctx->viewport.translate[3] = 0.0f;
cso_set_viewport(ctx->cso, &ctx->viewport);
/* texture */
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &src_sampler_view);
/* shaders */
set_fragment_shader(ctx, TGSI_WRITEMASK_XYZW,
src_sampler_view->texture->target);
set_vertex_shader(ctx);
cso_set_geometry_shader_handle(ctx->cso, NULL);
/* drawing dest */
memset(&fb, 0, sizeof(fb));
fb.width = dst->width;
fb.height = dst->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst;
cso_set_framebuffer(ctx->cso, &fb);
/* draw quad */
offset = setup_vertex_data_tex(ctx,
src_sampler_view->texture->target,
src_face,
(float) dstX0 / dst->width * 2.0f - 1.0f,
(float) dstY0 / dst->height * 2.0f - 1.0f,
(float) dstX1 / dst->width * 2.0f - 1.0f,
(float) dstY1 / dst->height * 2.0f - 1.0f,
s0, t0, s1, t1,
z);
util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf,
cso_get_aux_vertex_buffer_slot(ctx->cso),
offset,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_depth_stencil_alpha(ctx->cso);
cso_restore_rasterizer(ctx->cso);
cso_restore_sample_mask(ctx->cso);
cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_viewport(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_geometry_shader(ctx->cso);
cso_restore_vertex_elements(ctx->cso);
cso_restore_aux_vertex_buffer_slot(ctx->cso);
cso_restore_stream_outputs(ctx->cso);
}
static void
update_textures(struct st_context *st,
gl_shader_stage mesa_shader,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLbitfield free_slots = ~prog->SamplersUsed;
GLbitfield external_samplers_used = prog->ExternalSamplersUsed;
GLuint unit;
enum pipe_shader_type shader_stage = st_shader_stage_to_ptarget(mesa_shader);
if (samplers_used == 0x0 && old_max == 0)
return;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
/* prog->sh.data is NULL if it's ARB_fragment_program */
unsigned glsl_version = prog->sh.data ? prog->sh.data->Version : 0;
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
retval = update_single_texture(st, &sampler_view, texUnit,
glsl_version);
if (retval == GL_FALSE)
continue;
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
/* For any external samplers with multiplaner YUV, stuff the additional
* sampler views we need at the end.
*
* Trying to cache the sampler view in the stObj looks painful, so just
* re-create the sampler view for the extra planes each time. Main use
* case is video playback (ie. fps games wouldn't be using this) so I
* guess no point to try to optimize this feature.
*/
while (unlikely(external_samplers_used)) {
GLuint unit = u_bit_scan(&external_samplers_used);
GLuint extra = 0;
struct st_texture_object *stObj =
st_get_texture_object(st->ctx, prog, unit);
struct pipe_sampler_view tmpl;
if (!stObj)
continue;
/* use original view as template: */
tmpl = *sampler_views[unit];
switch (st_get_view_format(stObj)) {
case PIPE_FORMAT_NV12:
/* we need one additional R8G8 view: */
tmpl.format = PIPE_FORMAT_RG88_UNORM;
tmpl.swizzle_g = PIPE_SWIZZLE_Y; /* tmpl from Y plane is R8 */
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
break;
case PIPE_FORMAT_IYUV:
/* we need two additional R8 views: */
tmpl.format = PIPE_FORMAT_R8_UNORM;
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next->next, &tmpl);
break;
default:
break;
}
*num_textures = MAX2(*num_textures, extra + 1);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
*num_textures,
sampler_views);
}
static void
update_textures(struct st_context *st,
enum pipe_shader_type shader_stage,
const struct gl_program *prog,
struct pipe_sampler_view **sampler_views,
unsigned *out_num_textures)
{
const GLuint old_max = *out_num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLbitfield texel_fetch_samplers = prog->info.textures_used_by_txf;
GLbitfield free_slots = ~prog->SamplersUsed;
GLbitfield external_samplers_used = prog->ExternalSamplersUsed;
GLuint unit;
if (samplers_used == 0x0 && old_max == 0)
return;
unsigned num_textures = 0;
/* prog->sh.data is NULL if it's ARB_fragment_program */
bool glsl130 = (prog->sh.data ? prog->sh.data->Version : 0) >= 130;
/* loop over sampler units (aka tex image units) */
for (unit = 0; samplers_used || unit < old_max;
unit++, samplers_used >>= 1, texel_fetch_samplers >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
const GLuint texUnit = prog->SamplerUnits[unit];
/* The EXT_texture_sRGB_decode extension says:
*
* "The conversion of sRGB color space components to linear color
* space is always performed if the texel lookup function is one
* of the texelFetch builtin functions.
*
* Otherwise, if the texel lookup function is one of the texture
* builtin functions or one of the texture gather functions, the
* conversion of sRGB color space components to linear color space
* is controlled by the TEXTURE_SRGB_DECODE_EXT parameter.
*
* If the TEXTURE_SRGB_DECODE_EXT parameter is DECODE_EXT, the
* conversion of sRGB color space components to linear color space
* is performed.
*
* If the TEXTURE_SRGB_DECODE_EXT parameter is SKIP_DECODE_EXT,
* the value is returned without decoding. However, if the texture
* is also [statically] accessed with a texelFetch function, then
* the result of texture builtin functions and/or texture gather
* functions may be returned with decoding or without decoding."
*
* Note: the "statically" will be added to the language per
* https://cvs.khronos.org/bugzilla/show_bug.cgi?id=14934
*
* So we simply ignore the setting entirely for samplers that are
* (statically) accessed with a texelFetch function.
*/
st_update_single_texture(st, &sampler_view, texUnit, glsl130,
texel_fetch_samplers & 1);
num_textures = unit + 1;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
/* For any external samplers with multiplaner YUV, stuff the additional
* sampler views we need at the end.
*
* Trying to cache the sampler view in the stObj looks painful, so just
* re-create the sampler view for the extra planes each time. Main use
* case is video playback (ie. fps games wouldn't be using this) so I
* guess no point to try to optimize this feature.
*/
while (unlikely(external_samplers_used)) {
GLuint unit = u_bit_scan(&external_samplers_used);
GLuint extra = 0;
struct st_texture_object *stObj =
st_get_texture_object(st->ctx, prog, unit);
struct pipe_sampler_view tmpl;
if (!stObj)
continue;
/* use original view as template: */
tmpl = *sampler_views[unit];
switch (st_get_view_format(stObj)) {
case PIPE_FORMAT_NV12:
/* we need one additional R8G8 view: */
tmpl.format = PIPE_FORMAT_RG88_UNORM;
tmpl.swizzle_g = PIPE_SWIZZLE_Y; /* tmpl from Y plane is R8 */
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
break;
case PIPE_FORMAT_IYUV:
/* we need two additional R8 views: */
tmpl.format = PIPE_FORMAT_R8_UNORM;
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next->next, &tmpl);
break;
default:
break;
}
num_textures = MAX2(num_textures, extra + 1);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
num_textures,
sampler_views);
*out_num_textures = num_textures;
}
/**
* Copy pixel block from src sampler view to dst surface.
*
* The sampler view's first_level field indicates the source
* mipmap level to use.
*
* The sampler view's first_layer indicate the layer to use, but for
* cube maps it must point to the first face. Face is passed in src_face.
*
* The main advantage over util_blit_pixels is that it allows to specify
* swizzles in pipe_sampler_view::swizzle_?.
*
* But there is no control over blitting Z and/or stencil.
*/
void
util_blit_pixels_tex(struct blit_state *ctx,
struct pipe_sampler_view *src_sampler_view,
int srcX0, int srcY0,
int srcX1, int srcY1,
unsigned src_face,
struct pipe_surface *dst,
int dstX0, int dstY0,
int dstX1, int dstY1,
float z, enum pipe_tex_filter filter,
boolean src_xrbias)
{
boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT;
struct pipe_framebuffer_state fb;
float s0, t0, s1, t1;
unsigned offset;
struct pipe_resource *tex = src_sampler_view->texture;
assert(filter == PIPE_TEX_FILTER_NEAREST ||
filter == PIPE_TEX_FILTER_LINEAR);
assert(tex);
assert(tex->width0 != 0);
assert(tex->height0 != 0);
s0 = (float) srcX0;
s1 = (float) srcX1;
t0 = (float) srcY0;
t1 = (float) srcY1;
if (normalized) {
/* normalize according to the mipmap level's size */
int level = src_sampler_view->u.tex.first_level;
float w = (float) u_minify(tex->width0, level);
float h = (float) u_minify(tex->height0, level);
s0 /= w;
s1 /= w;
t0 /= h;
t1 /= h;
}
assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format,
PIPE_TEXTURE_2D,
dst->texture->nr_samples,
PIPE_BIND_RENDER_TARGET));
/* save state (restored below) */
cso_save_state(ctx->cso, (CSO_BIT_BLEND |
CSO_BIT_DEPTH_STENCIL_ALPHA |
CSO_BIT_RASTERIZER |
CSO_BIT_SAMPLE_MASK |
CSO_BIT_MIN_SAMPLES |
CSO_BIT_FRAGMENT_SAMPLERS |
CSO_BIT_FRAGMENT_SAMPLER_VIEWS |
CSO_BIT_STREAM_OUTPUTS |
CSO_BIT_VIEWPORT |
CSO_BIT_FRAMEBUFFER |
CSO_BIT_PAUSE_QUERIES |
CSO_BIT_FRAGMENT_SHADER |
CSO_BIT_VERTEX_SHADER |
CSO_BIT_TESSCTRL_SHADER |
CSO_BIT_TESSEVAL_SHADER |
CSO_BIT_GEOMETRY_SHADER |
CSO_BIT_VERTEX_ELEMENTS |
CSO_BIT_AUX_VERTEX_BUFFER_SLOT));
/* set misc state we care about */
cso_set_blend(ctx->cso, &ctx->blend_write_color);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil);
cso_set_sample_mask(ctx->cso, ~0);
cso_set_min_samples(ctx->cso, 1);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
cso_set_stream_outputs(ctx->cso, 0, NULL, NULL);
/* sampler */
ctx->sampler.normalized_coords = normalized;
ctx->sampler.min_img_filter = filter;
ctx->sampler.mag_img_filter = filter;
{
const struct pipe_sampler_state *samplers[] = {&ctx->sampler};
cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, 1, samplers);
}
/* viewport */
ctx->viewport.scale[0] = 0.5f * dst->width;
ctx->viewport.scale[1] = 0.5f * dst->height;
ctx->viewport.scale[2] = 0.5f;
ctx->viewport.translate[0] = 0.5f * dst->width;
ctx->viewport.translate[1] = 0.5f * dst->height;
ctx->viewport.translate[2] = 0.5f;
cso_set_viewport(ctx->cso, &ctx->viewport);
/* texture */
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &src_sampler_view);
/* shaders */
set_fragment_shader(ctx, src_sampler_view->format,
src_xrbias,
src_sampler_view->texture->target);
set_vertex_shader(ctx);
cso_set_tessctrl_shader_handle(ctx->cso, NULL);
cso_set_tesseval_shader_handle(ctx->cso, NULL);
cso_set_geometry_shader_handle(ctx->cso, NULL);
/* drawing dest */
memset(&fb, 0, sizeof(fb));
fb.width = dst->width;
fb.height = dst->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst;
cso_set_framebuffer(ctx->cso, &fb);
/* draw quad */
offset = setup_vertex_data_tex(ctx,
src_sampler_view->texture->target,
src_face,
(float) dstX0 / dst->width * 2.0f - 1.0f,
(float) dstY0 / dst->height * 2.0f - 1.0f,
(float) dstX1 / dst->width * 2.0f - 1.0f,
(float) dstY1 / dst->height * 2.0f - 1.0f,
s0, t0, s1, t1,
z);
util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf,
cso_get_aux_vertex_buffer_slot(ctx->cso),
offset,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
/* restore state we changed */
cso_restore_state(ctx->cso);
}
static void
bind_samplers(struct xa_context *ctx,
const struct xa_composite *comp)
{
struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
struct pipe_sampler_state src_sampler, mask_sampler;
struct pipe_sampler_view view_templ;
struct pipe_sampler_view *src_view;
struct pipe_context *pipe = ctx->pipe;
struct xa_picture *src_pic = comp->src;
struct xa_picture *mask_pic = comp->mask;
ctx->num_bound_samplers = 0;
memset(&src_sampler, 0, sizeof(struct pipe_sampler_state));
memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state));
if (src_pic) {
if (ctx->has_solid_color) {
samplers[0] = NULL;
pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL);
} else {
unsigned src_wrap = xa_repeat_to_gallium(src_pic->wrap);
int filter;
(void) xa_filter_to_gallium(src_pic->filter, &filter);
src_sampler.wrap_s = src_wrap;
src_sampler.wrap_t = src_wrap;
src_sampler.min_img_filter = filter;
src_sampler.mag_img_filter = filter;
src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
src_sampler.normalized_coords = 1;
samplers[0] = &src_sampler;
ctx->num_bound_samplers = 1;
u_sampler_view_default_template(&view_templ,
src_pic->srf->tex,
src_pic->srf->tex->format);
src_view = pipe->create_sampler_view(pipe, src_pic->srf->tex,
&view_templ);
pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL);
ctx->bound_sampler_views[0] = src_view;
}
}
if (mask_pic) {
unsigned mask_wrap = xa_repeat_to_gallium(mask_pic->wrap);
int filter;
(void) xa_filter_to_gallium(mask_pic->filter, &filter);
mask_sampler.wrap_s = mask_wrap;
mask_sampler.wrap_t = mask_wrap;
mask_sampler.min_img_filter = filter;
mask_sampler.mag_img_filter = filter;
src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
mask_sampler.normalized_coords = 1;
samplers[1] = &mask_sampler;
ctx->num_bound_samplers = 2;
u_sampler_view_default_template(&view_templ,
mask_pic->srf->tex,
mask_pic->srf->tex->format);
src_view = pipe->create_sampler_view(pipe, mask_pic->srf->tex,
&view_templ);
pipe_sampler_view_reference(&ctx->bound_sampler_views[1], NULL);
ctx->bound_sampler_views[1] = src_view;
/*
* If src is a solid color, we have no src view, so set up a
* dummy one that will not be used anyway.
*/
if (ctx->bound_sampler_views[0] == NULL)
pipe_sampler_view_reference(&ctx->bound_sampler_views[0],
src_view);
}
cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, ctx->num_bound_samplers,
(const struct pipe_sampler_state **)samplers);
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, ctx->num_bound_samplers,
ctx->bound_sampler_views);
}
/**
* Setup pipeline state prior to rendering the bitmap textured quad.
*/
static void
setup_render_state(struct gl_context *ctx,
struct pipe_sampler_view *sv,
const GLfloat *color,
bool atlas)
{
struct st_context *st = st_context(ctx);
struct cso_context *cso = st->cso_context;
struct st_fp_variant *fpv;
struct st_fp_variant_key key;
memset(&key, 0, sizeof(key));
key.st = st->has_shareable_shaders ? NULL : st;
key.bitmap = GL_TRUE;
key.clamp_color = st->clamp_frag_color_in_shader &&
ctx->Color._ClampFragmentColor;
fpv = st_get_fp_variant(st, st->fp, &key);
/* As an optimization, Mesa's fragment programs will sometimes get the
* primary color from a statevar/constant rather than a varying variable.
* when that's the case, we need to ensure that we use the 'color'
* parameter and not the current attribute color (which may have changed
* through glRasterPos and state validation.
* So, we force the proper color here. Not elegant, but it works.
*/
{
GLfloat colorSave[4];
COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);
COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color);
st_upload_constants(st, st->fp->Base.Base.Parameters,
PIPE_SHADER_FRAGMENT);
COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave);
}
cso_save_state(cso, (CSO_BIT_RASTERIZER |
CSO_BIT_FRAGMENT_SAMPLERS |
CSO_BIT_FRAGMENT_SAMPLER_VIEWS |
CSO_BIT_VIEWPORT |
CSO_BIT_STREAM_OUTPUTS |
CSO_BIT_VERTEX_ELEMENTS |
CSO_BIT_AUX_VERTEX_BUFFER_SLOT |
CSO_BITS_ALL_SHADERS));
/* rasterizer state: just scissor */
st->bitmap.rasterizer.scissor = ctx->Scissor.EnableFlags & 1;
cso_set_rasterizer(cso, &st->bitmap.rasterizer);
/* fragment shader state: TEX lookup program */
cso_set_fragment_shader_handle(cso, fpv->driver_shader);
/* vertex shader state: position + texcoord pass-through */
cso_set_vertex_shader_handle(cso, st->bitmap.vs);
/* disable other shaders */
cso_set_tessctrl_shader_handle(cso, NULL);
cso_set_tesseval_shader_handle(cso, NULL);
cso_set_geometry_shader_handle(cso, NULL);
/* user samplers, plus our bitmap sampler */
{
struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
uint num = MAX2(fpv->bitmap_sampler + 1,
st->state.num_samplers[PIPE_SHADER_FRAGMENT]);
uint i;
for (i = 0; i < st->state.num_samplers[PIPE_SHADER_FRAGMENT]; i++) {
samplers[i] = &st->state.samplers[PIPE_SHADER_FRAGMENT][i];
}
if (atlas)
samplers[fpv->bitmap_sampler] = &st->bitmap.atlas_sampler;
else
samplers[fpv->bitmap_sampler] = &st->bitmap.sampler;
cso_set_samplers(cso, PIPE_SHADER_FRAGMENT, num,
(const struct pipe_sampler_state **) samplers);
}
/* user textures, plus the bitmap texture */
{
struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];
uint num = MAX2(fpv->bitmap_sampler + 1,
st->state.num_sampler_views[PIPE_SHADER_FRAGMENT]);
memcpy(sampler_views, st->state.sampler_views[PIPE_SHADER_FRAGMENT],
sizeof(sampler_views));
sampler_views[fpv->bitmap_sampler] = sv;
cso_set_sampler_views(cso, PIPE_SHADER_FRAGMENT, num, sampler_views);
}
/* viewport state: viewport matching window dims */
cso_set_viewport_dims(cso, st->state.framebuffer.width,
st->state.framebuffer.height,
st->state.fb_orientation == Y_0_TOP);
cso_set_vertex_elements(cso, 3, st->util_velems);
cso_set_stream_outputs(st->cso_context, 0, NULL, NULL);
}
/**
* Render a glBitmap by drawing a textured quad
*/
static void
draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
GLsizei width, GLsizei height,
struct pipe_sampler_view *sv,
const GLfloat *color)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct cso_context *cso = st->cso_context;
struct st_fp_variant *fpv;
struct st_fp_variant_key key;
GLuint maxSize;
GLuint offset;
struct pipe_resource *vbuf = NULL;
memset(&key, 0, sizeof(key));
key.st = st;
key.bitmap = GL_TRUE;
key.clamp_color = st->clamp_frag_color_in_shader &&
st->ctx->Color._ClampFragmentColor;
fpv = st_get_fp_variant(st, st->fp, &key);
/* As an optimization, Mesa's fragment programs will sometimes get the
* primary color from a statevar/constant rather than a varying variable.
* when that's the case, we need to ensure that we use the 'color'
* parameter and not the current attribute color (which may have changed
* through glRasterPos and state validation.
* So, we force the proper color here. Not elegant, but it works.
*/
{
GLfloat colorSave[4];
COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);
COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color);
st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave);
}
/* limit checks */
/* XXX if the bitmap is larger than the max texture size, break
* it up into chunks.
*/
maxSize = 1 << (pipe->screen->get_param(pipe->screen,
PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
assert(width <= (GLsizei)maxSize);
assert(height <= (GLsizei)maxSize);
cso_save_rasterizer(cso);
cso_save_samplers(cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(cso, PIPE_SHADER_FRAGMENT);
cso_save_viewport(cso);
cso_save_fragment_shader(cso);
cso_save_stream_outputs(cso);
cso_save_vertex_shader(cso);
cso_save_tessctrl_shader(cso);
cso_save_tesseval_shader(cso);
cso_save_geometry_shader(cso);
cso_save_vertex_elements(cso);
cso_save_aux_vertex_buffer_slot(cso);
/* rasterizer state: just scissor */
st->bitmap.rasterizer.scissor = ctx->Scissor.EnableFlags & 1;
cso_set_rasterizer(cso, &st->bitmap.rasterizer);
/* fragment shader state: TEX lookup program */
cso_set_fragment_shader_handle(cso, fpv->driver_shader);
/* vertex shader state: position + texcoord pass-through */
cso_set_vertex_shader_handle(cso, st->bitmap.vs);
/* disable other shaders */
cso_set_tessctrl_shader_handle(cso, NULL);
cso_set_tesseval_shader_handle(cso, NULL);
cso_set_geometry_shader_handle(cso, NULL);
/* user samplers, plus our bitmap sampler */
{
struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
uint num = MAX2(fpv->bitmap_sampler + 1,
st->state.num_samplers[PIPE_SHADER_FRAGMENT]);
uint i;
for (i = 0; i < st->state.num_samplers[PIPE_SHADER_FRAGMENT]; i++) {
samplers[i] = &st->state.samplers[PIPE_SHADER_FRAGMENT][i];
}
samplers[fpv->bitmap_sampler] =
&st->bitmap.samplers[sv->texture->target != PIPE_TEXTURE_RECT];
cso_set_samplers(cso, PIPE_SHADER_FRAGMENT, num,
(const struct pipe_sampler_state **) samplers);
}
/* user textures, plus the bitmap texture */
{
struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];
uint num = MAX2(fpv->bitmap_sampler + 1,
st->state.num_sampler_views[PIPE_SHADER_FRAGMENT]);
memcpy(sampler_views, st->state.sampler_views[PIPE_SHADER_FRAGMENT],
sizeof(sampler_views));
sampler_views[fpv->bitmap_sampler] = sv;
cso_set_sampler_views(cso, PIPE_SHADER_FRAGMENT, num, sampler_views);
}
/* viewport state: viewport matching window dims */
{
const GLboolean invert = st->state.fb_orientation == Y_0_TOP;
const GLfloat width = (GLfloat)st->state.framebuffer.width;
const GLfloat height = (GLfloat)st->state.framebuffer.height;
struct pipe_viewport_state vp;
vp.scale[0] = 0.5f * width;
vp.scale[1] = height * (invert ? -0.5f : 0.5f);
vp.scale[2] = 0.5f;
vp.translate[0] = 0.5f * width;
vp.translate[1] = 0.5f * height;
vp.translate[2] = 0.5f;
cso_set_viewport(cso, &vp);
}
cso_set_vertex_elements(cso, 3, st->velems_util_draw);
cso_set_stream_outputs(st->cso_context, 0, NULL, NULL);
/* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
z = z * 2.0f - 1.0f;
/* draw textured quad */
setup_bitmap_vertex_data(st, sv->texture->target != PIPE_TEXTURE_RECT,
x, y, width, height, z, color, &vbuf, &offset);
if (vbuf) {
util_draw_vertex_buffer(pipe, st->cso_context, vbuf,
cso_get_aux_vertex_buffer_slot(st->cso_context),
offset,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
3); /* attribs/vert */
}
/* restore state */
cso_restore_rasterizer(cso);
cso_restore_samplers(cso, PIPE_SHADER_FRAGMENT);
cso_restore_sampler_views(cso, PIPE_SHADER_FRAGMENT);
cso_restore_viewport(cso);
cso_restore_fragment_shader(cso);
cso_restore_vertex_shader(cso);
cso_restore_tessctrl_shader(cso);
cso_restore_tesseval_shader(cso);
cso_restore_geometry_shader(cso);
cso_restore_vertex_elements(cso);
cso_restore_aux_vertex_buffer_slot(cso);
cso_restore_stream_outputs(cso);
pipe_resource_reference(&vbuf, NULL);
}
/** Run function of the MLAA filter. */
static void
pp_jimenezmlaa_run(struct pp_queue_t *ppq, struct pipe_resource *in,
struct pipe_resource *out, unsigned int n, bool iscolor)
{
struct pp_program *p = ppq->p;
struct pipe_depth_stencil_alpha_state mstencil;
struct pipe_sampler_view v_tmp, *arr[3];
unsigned int w = 0;
unsigned int h = 0;
const struct pipe_stencil_ref ref = { {1} };
/* Insufficient initialization checks. */
assert(p);
assert(ppq);
assert(ppq->constbuf);
assert(ppq->areamaptex);
assert(ppq->inner_tmp);
assert(ppq->shaders[n]);
w = p->framebuffer.width;
h = p->framebuffer.height;
memset(&mstencil, 0, sizeof(mstencil));
cso_set_stencil_ref(p->cso, &ref);
/* Init the pixel size constant */
if (dimensions[0] != p->framebuffer.width ||
dimensions[1] != p->framebuffer.height) {
constants[0] = 1.0f / p->framebuffer.width;
constants[1] = 1.0f / p->framebuffer.height;
up_consts(ppq);
dimensions[0] = p->framebuffer.width;
dimensions[1] = p->framebuffer.height;
}
cso_set_constant_buffer_resource(p->cso, PIPE_SHADER_VERTEX,
0, ppq->constbuf);
cso_set_constant_buffer_resource(p->cso, PIPE_SHADER_FRAGMENT,
0, ppq->constbuf);
mstencil.stencil[0].enabled = 1;
mstencil.stencil[0].valuemask = mstencil.stencil[0].writemask = ~0;
mstencil.stencil[0].func = PIPE_FUNC_ALWAYS;
mstencil.stencil[0].fail_op = PIPE_STENCIL_OP_KEEP;
mstencil.stencil[0].zfail_op = PIPE_STENCIL_OP_KEEP;
mstencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
p->framebuffer.zsbuf = ppq->stencils;
/* First pass: depth edge detection */
if (iscolor)
pp_filter_setup_in(p, in);
else
pp_filter_setup_in(p, ppq->depth);
pp_filter_setup_out(p, ppq->inner_tmp[0]);
pp_filter_set_fb(p);
pp_filter_misc_state(p);
cso_set_depth_stencil_alpha(p->cso, &mstencil);
p->pipe->clear(p->pipe, PIPE_CLEAR_STENCIL | PIPE_CLEAR_COLOR0,
&p->clear_color, 0, 0);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 0, &p->sampler_point);
cso_single_sampler_done(p->cso, PIPE_SHADER_FRAGMENT);
cso_set_sampler_views(p->cso, PIPE_SHADER_FRAGMENT, 1, &p->view);
cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][1]); /* offsetvs */
cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][2]);
pp_filter_draw(p);
pp_filter_end_pass(p);
/* Second pass: blend weights */
/* Sampler order: areamap, edgesmap, edgesmapL (reversed, thx compiler) */
mstencil.stencil[0].func = PIPE_FUNC_EQUAL;
mstencil.stencil[0].zpass_op = PIPE_STENCIL_OP_KEEP;
cso_set_depth_stencil_alpha(p->cso, &mstencil);
pp_filter_setup_in(p, ppq->areamaptex);
pp_filter_setup_out(p, ppq->inner_tmp[1]);
u_sampler_view_default_template(&v_tmp, ppq->inner_tmp[0],
ppq->inner_tmp[0]->format);
arr[1] = arr[2] = p->pipe->create_sampler_view(p->pipe,
ppq->inner_tmp[0], &v_tmp);
pp_filter_set_clear_fb(p);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 0, &p->sampler_point);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 1, &p->sampler_point);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 2, &p->sampler);
cso_single_sampler_done(p->cso, PIPE_SHADER_FRAGMENT);
arr[0] = p->view;
cso_set_sampler_views(p->cso, PIPE_SHADER_FRAGMENT, 3, arr);
cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][0]); /* passvs */
cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][3]);
pp_filter_draw(p);
pp_filter_end_pass(p);
pipe_sampler_view_reference(&arr[1], NULL);
/* Third pass: smoothed edges */
/* Sampler order: colormap, blendmap (wtf compiler) */
pp_filter_setup_in(p, ppq->inner_tmp[1]);
pp_filter_setup_out(p, out);
pp_filter_set_fb(p);
/* Blit the input to the output */
pp_blit(p->pipe, in, 0, 0,
w, h, 0, p->framebuffer.cbufs[0],
0, 0, w, h);
u_sampler_view_default_template(&v_tmp, in, in->format);
arr[0] = p->pipe->create_sampler_view(p->pipe, in, &v_tmp);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 0, &p->sampler_point);
cso_single_sampler(p->cso, PIPE_SHADER_FRAGMENT, 1, &p->sampler_point);
cso_single_sampler_done(p->cso, PIPE_SHADER_FRAGMENT);
arr[1] = p->view;
cso_set_sampler_views(p->cso, PIPE_SHADER_FRAGMENT, 2, arr);
cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][1]); /* offsetvs */
cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][4]);
p->blend.rt[0].blend_enable = 1;
cso_set_blend(p->cso, &p->blend);
pp_filter_draw(p);
pp_filter_end_pass(p);
pipe_sampler_view_reference(&arr[0], NULL);
p->blend.rt[0].blend_enable = 0;
p->framebuffer.zsbuf = NULL;
}
/**
* Generate mipmap images. It's assumed all needed texture memory is
* already allocated.
*
* \param psv the sampler view to the texture to generate mipmap levels for
* \param face which cube face to generate mipmaps for (0 for non-cube maps)
* \param baseLevel the first mipmap level to use as a src
* \param lastLevel the last mipmap level to generate
* \param filter the minification filter used to generate mipmap levels with
* \param filter one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
*/
void
util_gen_mipmap(struct gen_mipmap_state *ctx,
struct pipe_sampler_view *psv,
uint face, uint baseLevel, uint lastLevel, uint filter)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_framebuffer_state fb;
struct pipe_resource *pt = psv->texture;
uint dstLevel;
uint offset;
uint type;
boolean is_depth = util_format_is_depth_or_stencil(psv->format);
/* The texture object should have room for the levels which we're
* about to generate.
*/
assert(lastLevel <= pt->last_level);
/* If this fails, why are we here? */
assert(lastLevel > baseLevel);
assert(filter == PIPE_TEX_FILTER_LINEAR ||
filter == PIPE_TEX_FILTER_NEAREST);
type = util_pipe_tex_to_tgsi_tex(pt->target, 1);
/* check if we can render in the texture's format */
if (!screen->is_format_supported(screen, psv->format, pt->target,
pt->nr_samples,
is_depth ? PIPE_BIND_DEPTH_STENCIL :
PIPE_BIND_RENDER_TARGET)) {
/* The caller should check if the format is renderable. */
assert(0);
return;
}
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_depth_stencil_alpha(ctx->cso);
cso_save_rasterizer(ctx->cso);
cso_save_sample_mask(ctx->cso);
cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_save_stream_outputs(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_geometry_shader(ctx->cso);
cso_save_viewport(ctx->cso);
cso_save_vertex_elements(ctx->cso);
cso_save_aux_vertex_buffer_slot(ctx->cso);
cso_save_render_condition(ctx->cso);
/* bind our state */
cso_set_blend(ctx->cso, is_depth ? &ctx->blend_keep_color :
&ctx->blend_write_color);
cso_set_depth_stencil_alpha(ctx->cso, is_depth ? &ctx->dsa_write_depth :
&ctx->dsa_keep_depth);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_sample_mask(ctx->cso, ~0);
cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
cso_set_stream_outputs(ctx->cso, 0, NULL, NULL);
cso_set_render_condition(ctx->cso, NULL, FALSE, 0);
set_fragment_shader(ctx, type, is_depth);
set_vertex_shader(ctx);
cso_set_geometry_shader_handle(ctx->cso, NULL);
/* init framebuffer state */
memset(&fb, 0, sizeof(fb));
/* set min/mag to same filter for faster sw speed */
ctx->sampler.mag_img_filter = filter;
ctx->sampler.min_img_filter = filter;
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
struct pipe_viewport_state vp;
unsigned nr_layers, layer, i;
float rcoord = 0.0f;
if (pt->target == PIPE_TEXTURE_3D)
nr_layers = u_minify(pt->depth0, dstLevel);
else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
pt->target == PIPE_TEXTURE_1D_ARRAY ||
pt->target == PIPE_TEXTURE_CUBE_ARRAY)
nr_layers = pt->array_size;
else
nr_layers = 1;
for (i = 0; i < nr_layers; i++) {
struct pipe_surface *surf, surf_templ;
if (pt->target == PIPE_TEXTURE_3D) {
/* in theory with geom shaders and driver with full layer support
could do that in one go. */
layer = i;
/* XXX hmm really? */
rcoord = (float)layer / (float)nr_layers + 1.0f / (float)(nr_layers * 2);
} else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
pt->target == PIPE_TEXTURE_1D_ARRAY) {
layer = i;
rcoord = (float)layer;
} else if (pt->target == PIPE_TEXTURE_CUBE_ARRAY) {
layer = i;
face = layer % 6;
rcoord = layer / 6;
} else
layer = face;
u_surface_default_template(&surf_templ, pt);
surf_templ.u.tex.level = dstLevel;
surf_templ.u.tex.first_layer = layer;
surf_templ.u.tex.last_layer = layer;
surf = pipe->create_surface(pipe, pt, &surf_templ);
/*
* Setup framebuffer / dest surface
*/
if (is_depth) {
fb.nr_cbufs = 0;
fb.zsbuf = surf;
}
else {
fb.nr_cbufs = 1;
fb.cbufs[0] = surf;
}
fb.width = u_minify(pt->width0, dstLevel);
fb.height = u_minify(pt->height0, dstLevel);
cso_set_framebuffer(ctx->cso, &fb);
/* viewport */
vp.scale[0] = 0.5f * fb.width;
vp.scale[1] = 0.5f * fb.height;
vp.scale[2] = 1.0f;
vp.scale[3] = 1.0f;
vp.translate[0] = 0.5f * fb.width;
vp.translate[1] = 0.5f * fb.height;
vp.translate[2] = 0.0f;
vp.translate[3] = 0.0f;
cso_set_viewport(ctx->cso, &vp);
/*
* Setup sampler state
* Note: we should only have to set the min/max LOD clamps to ensure
* we grab texels from the right mipmap level. But some hardware
* has trouble with min clamping so we also set the lod_bias to
* try to work around that.
*/
ctx->sampler.min_lod = ctx->sampler.max_lod = (float) srcLevel;
ctx->sampler.lod_bias = (float) srcLevel;
cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &psv);
/* quad coords in clip coords */
offset = set_vertex_data(ctx,
pt->target,
face,
rcoord);
util_draw_vertex_buffer(ctx->pipe,
ctx->cso,
ctx->vbuf,
cso_get_aux_vertex_buffer_slot(ctx->cso),
offset,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
/* need to signal that the texture has changed _after_ rendering to it */
pipe_surface_reference( &surf, NULL );
}
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_depth_stencil_alpha(ctx->cso);
cso_restore_rasterizer(ctx->cso);
cso_restore_sample_mask(ctx->cso);
cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_geometry_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
cso_restore_vertex_elements(ctx->cso);
cso_restore_stream_outputs(ctx->cso);
cso_restore_aux_vertex_buffer_slot(ctx->cso);
cso_restore_render_condition(ctx->cso);
}