static void draw(struct program *p)
{
/* 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);
/* 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,
PIPE_PRIM_TRIANGLES,
3, /* verts */
2); /* attribs/vert */
p->pipe->flush(p->pipe, NULL);
debug_dump_surface_bmp(p->pipe, "result.bmp", p->framebuffer.cbufs[0]);
}
void st_resize_framebuffer(struct st_framebuffer *stfb,
uint width, uint height)
{
struct vg_context *ctx = vg_current_context();
struct st_renderbuffer *strb = stfb->strb;
struct pipe_framebuffer_state *state;
if (!ctx)
return;
state = &ctx->state.g3d.fb;
/* If this is a noop, exit early and don't do the clear, etc below.
*/
if (strb->width == width &&
strb->height == height &&
state->zsbuf)
return;
if (strb->width != width || strb->height != height)
st_renderbuffer_alloc_storage(ctx, strb,
width, height);
if (stfb->dsrb->width != width || stfb->dsrb->height != height)
st_renderbuffer_alloc_storage(ctx, stfb->dsrb,
width, height);
{
VGuint i;
memset(state, 0, sizeof(struct pipe_framebuffer_state));
state->width = width;
state->height = height;
state->nr_cbufs = 1;
state->cbufs[0] = strb->surface;
for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i)
state->cbufs[i] = 0;
state->zsbuf = stfb->dsrb->surface;
cso_set_framebuffer(ctx->cso_context, state);
}
ctx->state.dirty |= VIEWPORT_DIRTY;
ctx->state.dirty |= DEPTH_STENCIL_DIRTY;/*to reset the scissors*/
ctx->pipe->clear(ctx->pipe, PIPE_CLEAR_DEPTHSTENCIL,
NULL, 0.0, 0);
/* we need all the other state already set */
setup_new_alpha_mask(ctx, stfb, width, height);
pipe_texture_reference( &stfb->blend_texture, NULL );
stfb->blend_texture = create_texture(ctx->pipe, PIPE_FORMAT_A8R8G8B8_UNORM,
width, height);
}
/* Set up framebuffer, viewport and vertex shader constant buffer
* state for a particular destinaton surface. In all our rendering,
* these concepts are linked.
*/
void
renderer_bind_destination(struct xa_context *r,
struct pipe_surface *surface)
{
int width = surface->width;
int height = surface->height;
struct pipe_framebuffer_state fb;
struct pipe_viewport_state viewport;
xa_scissor_reset(r);
/* Framebuffer uses actual surface width/height
*/
memset(&fb, 0, sizeof fb);
fb.width = surface->width;
fb.height = surface->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = surface;
fb.zsbuf = 0;
/* Viewport just touches the bit we're interested in:
*/
viewport.scale[0] = width / 2.f;
viewport.scale[1] = height / 2.f;
viewport.scale[2] = 1.0;
viewport.scale[3] = 1.0;
viewport.translate[0] = width / 2.f;
viewport.translate[1] = height / 2.f;
viewport.translate[2] = 0.0;
viewport.translate[3] = 0.0;
/* Constant buffer set up to match viewport dimensions:
*/
if (r->fb_width != width || r->fb_height != height) {
float vs_consts[8] = {
2.f / width, 2.f / height, 1, 1,
-1, -1, 0, 0
};
r->fb_width = width;
r->fb_height = height;
renderer_set_constants(r, PIPE_SHADER_VERTEX,
vs_consts, sizeof vs_consts);
}
cso_set_framebuffer(r->cso, &fb);
cso_set_viewport(r->cso, &viewport);
}
/**
* Set renderer target.
*
* This function modifies framebuffer and viewport states.
*/
static void renderer_set_target(struct renderer *r,
struct pipe_surface *cbuf,
struct pipe_surface *zsbuf,
VGboolean y0_top)
{
struct pipe_framebuffer_state fb;
memset(&fb, 0, sizeof(fb));
fb.width = cbuf->width;
fb.height = cbuf->height;
fb.cbufs[0] = cbuf;
fb.nr_cbufs = 1;
fb.zsbuf = zsbuf;
cso_set_framebuffer(r->cso, &fb);
vg_set_viewport(r, (y0_top) ? VEGA_Y0_TOP : VEGA_Y0_BOTTOM);
}
static void
util_set_framebuffer_cb0(struct cso_context *cso, struct pipe_context *ctx,
struct pipe_resource *tex)
{
struct pipe_surface templ = {{0}}, *surf;
struct pipe_framebuffer_state fb = {0};
templ.format = tex->format;
surf = ctx->create_surface(ctx, tex, &templ);
fb.width = tex->width0;
fb.height = tex->height0;
fb.cbufs[0] = surf;
fb.nr_cbufs = 1;
cso_set_framebuffer(cso, &fb);
pipe_surface_reference(&surf, NULL);
}
/**
* Propogate OpenVG state changes to the renderer. Only framebuffer, blending
* and scissoring states are relevant here.
*/
void renderer_validate(struct renderer *renderer,
VGbitfield dirty,
const struct st_framebuffer *stfb,
const struct vg_state *state)
{
assert(renderer->state == RENDERER_STATE_INIT);
dirty |= renderer->dirty;
renderer->dirty = 0;
if (dirty & FRAMEBUFFER_DIRTY) {
struct pipe_framebuffer_state *fb = &renderer->g3d.fb;
struct matrix *proj = &renderer->projection;
memset(fb, 0, sizeof(struct pipe_framebuffer_state));
fb->width = stfb->width;
fb->height = stfb->height;
fb->nr_cbufs = 1;
fb->cbufs[0] = stfb->strb->surface;
fb->zsbuf = stfb->dsrb->surface;
cso_set_framebuffer(renderer->cso, fb);
vg_set_viewport(renderer, VEGA_Y0_BOTTOM);
matrix_load_identity(proj);
matrix_translate(proj, -1.0f, -1.0f);
matrix_scale(proj, 2.0f / fb->width, 2.0f / fb->height);
/* we also got a new depth buffer */
if (dirty & DEPTH_STENCIL_DIRTY) {
renderer->pipe->clear(renderer->pipe,
PIPE_CLEAR_DEPTHSTENCIL, NULL, 0.0, 0);
}
}
/* must be last because it renders to the depth buffer*/
if (dirty & DEPTH_STENCIL_DIRTY) {
update_clip_state(renderer, state);
cso_set_depth_stencil_alpha(renderer->cso, &renderer->g3d.dsa);
}
if (dirty & BLEND_DIRTY)
renderer_validate_blend(renderer, state, stfb->strb->format);
}
static void
vg_context_update_draw_buffer(struct vg_context *ctx, struct pipe_resource *pt)
{
struct st_framebuffer *stfb = ctx->draw_buffer;
boolean new_cbuf, new_zsbuf, new_size;
new_cbuf = vg_context_update_color_rb(ctx, pt);
new_zsbuf =
vg_context_update_depth_stencil_rb(ctx, pt->width0, pt->height0);
new_size = (stfb->width != pt->width0 || stfb->height != pt->height0);
stfb->width = pt->width0;
stfb->height = pt->height0;
if (new_cbuf || new_zsbuf || new_size) {
struct pipe_framebuffer_state *state = &ctx->state.g3d.fb;
memset(state, 0, sizeof(struct pipe_framebuffer_state));
state->width = stfb->width;
state->height = stfb->height;
state->nr_cbufs = 1;
state->cbufs[0] = stfb->strb->surface;
state->zsbuf = stfb->dsrb->surface;
cso_set_framebuffer(ctx->cso_context, state);
}
if (new_zsbuf || new_size) {
ctx->state.dirty |= VIEWPORT_DIRTY;
ctx->state.dirty |= DEPTH_STENCIL_DIRTY;/*to reset the scissors*/
ctx->pipe->clear(ctx->pipe, PIPE_CLEAR_DEPTHSTENCIL, NULL, 0.0, 0);
/* we need all the other state already set */
setup_new_alpha_mask(ctx, stfb);
pipe_sampler_view_reference( &stfb->blend_texture_view, NULL);
stfb->blend_texture_view = create_tex_and_view(ctx->pipe,
PIPE_FORMAT_B8G8R8A8_UNORM, stfb->width, stfb->height);
}
}
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]);
}
/**
* 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);
}
/** Set the framebuffer as active and clear it. */
void
pp_filter_set_clear_fb(struct program *p)
{
cso_set_framebuffer(p->cso, &p->framebuffer);
p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR, &p->clear_color, 0, 0);
}
/** Set the framebuffer as active. */
void
pp_filter_set_fb(struct program *p)
{
cso_set_framebuffer(p->cso, &p->framebuffer);
}
/**
* Update framebuffer state (color, depth, stencil, etc. buffers)
*/
void
st_update_framebuffer_state( struct st_context *st )
{
struct pipe_framebuffer_state framebuffer;
struct gl_framebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb;
GLuint i;
st_flush_bitmap_cache(st);
st_invalidate_readpix_cache(st);
st->state.fb_orientation = st_fb_orientation(fb);
/**
* Quantize the derived default number of samples:
*
* A query to the driver of supported MSAA values the
* hardware supports is done as to legalize the number
* of application requested samples, NumSamples.
* See commit eb9cf3c for more information.
*/
fb->DefaultGeometry._NumSamples =
framebuffer_quantize_num_samples(st, fb->DefaultGeometry.NumSamples);
framebuffer.width = _mesa_geometric_width(fb);
framebuffer.height = _mesa_geometric_height(fb);
framebuffer.samples = _mesa_geometric_samples(fb);
framebuffer.layers = _mesa_geometric_layers(fb);
/* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
* to determine which surfaces to draw to
*/
framebuffer.nr_cbufs = fb->_NumColorDrawBuffers;
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
framebuffer.cbufs[i] = NULL;
strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
if (strb) {
if (strb->is_rtt || (strb->texture &&
_mesa_get_format_color_encoding(strb->Base.Format) == GL_SRGB)) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
if (strb->surface) {
framebuffer.cbufs[i] = strb->surface;
update_framebuffer_size(&framebuffer, strb->surface);
}
strb->defined = GL_TRUE; /* we'll be drawing something */
}
}
for (i = framebuffer.nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
framebuffer.cbufs[i] = NULL;
}
/* Remove trailing GL_NONE draw buffers. */
while (framebuffer.nr_cbufs &&
!framebuffer.cbufs[framebuffer.nr_cbufs-1]) {
framebuffer.nr_cbufs--;
}
/*
* Depth/Stencil renderbuffer/surface.
*/
strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
if (!strb)
strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
if (strb) {
if (strb->is_rtt) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
framebuffer.zsbuf = strb->surface;
update_framebuffer_size(&framebuffer, strb->surface);
}
else
framebuffer.zsbuf = NULL;
#ifdef DEBUG
/* Make sure the resource binding flags were set properly */
for (i = 0; i < framebuffer.nr_cbufs; i++) {
assert(!framebuffer.cbufs[i] ||
framebuffer.cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
}
if (framebuffer.zsbuf) {
assert(framebuffer.zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
}
#endif
if (framebuffer.width == USHRT_MAX)
framebuffer.width = 0;
if (framebuffer.height == USHRT_MAX)
framebuffer.height = 0;
cso_set_framebuffer(st->cso_context, &framebuffer);
st->state.fb_width = framebuffer.width;
st->state.fb_height = framebuffer.height;
st->state.fb_num_samples = util_framebuffer_get_num_samples(&framebuffer);
st->state.fb_num_layers = util_framebuffer_get_num_layers(&framebuffer);
st->state.fb_num_cb = framebuffer.nr_cbufs;
}
/**
* Update framebuffer state (color, depth, stencil, etc. buffers)
*/
static void
update_framebuffer_state( struct st_context *st )
{
struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;
struct gl_framebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb;
GLuint i;
st_flush_bitmap_cache(st);
st->state.fb_orientation = st_fb_orientation(fb);
framebuffer->width = fb->Width;
framebuffer->height = fb->Height;
/*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/
/* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
* to determine which surfaces to draw to
*/
framebuffer->nr_cbufs = fb->_NumColorDrawBuffers;
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
pipe_surface_reference(&framebuffer->cbufs[i], NULL);
strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
if (strb) {
if (strb->is_rtt ||
(strb->texture && util_format_is_srgb(strb->texture->format))) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
if (strb->surface) {
pipe_surface_reference(&framebuffer->cbufs[i], strb->surface);
}
strb->defined = GL_TRUE; /* we'll be drawing something */
}
}
for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&framebuffer->cbufs[i], NULL);
}
/*
* Depth/Stencil renderbuffer/surface.
*/
strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
if (strb) {
if (strb->is_rtt) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
}
else {
strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
if (strb) {
assert(strb->surface);
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
}
else
pipe_surface_reference(&framebuffer->zsbuf, NULL);
}
#ifdef DEBUG
/* Make sure the resource binding flags were set properly */
for (i = 0; i < framebuffer->nr_cbufs; i++) {
assert(!framebuffer->cbufs[i] ||
framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
}
if (framebuffer->zsbuf) {
assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
}
#endif
cso_set_framebuffer(st->cso_context, framebuffer);
}
/**
* 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);
}
/**
* 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);
}
void renderer_copy_surface(struct renderer *ctx,
struct pipe_surface *src,
int srcX0, int srcY0,
int srcX1, int srcY1,
struct pipe_surface *dst,
int dstX0, int dstY0,
int dstX1, int dstY1,
float z, unsigned filter)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_buffer *buf;
struct pipe_texture texTemp, *tex;
struct pipe_surface *texSurf;
struct pipe_framebuffer_state fb;
struct st_framebuffer *stfb = ctx->owner->draw_buffer;
const int srcW = abs(srcX1 - srcX0);
const int srcH = abs(srcY1 - srcY0);
const int srcLeft = MIN2(srcX0, srcX1);
const int srcTop = MIN2(srcY0, srcY1);
assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
filter == PIPE_TEX_MIPFILTER_LINEAR);
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;
}
assert(screen->is_format_supported(screen, src->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
/*
* XXX for now we're always creating a temporary texture.
* Strictly speaking that's not always needed.
*/
/* create temp texture */
memset(&texTemp, 0, sizeof(texTemp));
texTemp.target = PIPE_TEXTURE_2D;
texTemp.format = src->format;
texTemp.last_level = 0;
texTemp.width0 = srcW;
texTemp.height0 = srcH;
texTemp.depth0 = 1;
tex = screen->texture_create(screen, &texTemp);
if (!tex)
return;
texSurf = screen->get_tex_surface(screen, tex, 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_WRITE);
/* load temp texture */
if (pipe->surface_copy) {
pipe->surface_copy(pipe,
texSurf, 0, 0, /* dest */
src, srcLeft, srcTop, /* src */
srcW, srcH); /* size */
} else {
util_surface_copy(pipe, FALSE,
texSurf, 0, 0, /* dest */
src, srcLeft, srcTop, /* src */
srcW, srcH); /* size */
}
/* free the surface, update the texture if necessary.*/
screen->tex_surface_destroy(texSurf);
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_samplers(ctx->cso);
cso_save_sampler_textures(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_viewport(ctx->cso);
/* 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(ctx->cso, &blend);
}
vg_set_viewport(ctx->owner, VEGA_Y0_TOP);
/* 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(ctx->cso, 0, &sampler);
cso_single_sampler_done(ctx->cso);
}
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &tex);
/* shaders */
cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
cso_set_vertex_shader_handle(ctx->cso, vg_texture_vs(ctx->owner));
/* drawing dest */
if (stfb->strb->surface != dst) {
memset(&fb, 0, sizeof(fb));
fb.width = dst->width;
fb.height = dst->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst;
fb.zsbuf = stfb->dsrb->surface;
cso_set_framebuffer(ctx->cso, &fb);
}
/* draw quad */
buf = setup_vertex_data(ctx,
(float) dstX0, (float) dstY0,
(float) dstX1, (float) dstY1, z);
if (buf) {
util_draw_vertex_buffer(ctx->pipe, buf, 0,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
pipe_buffer_reference( &buf,
NULL );
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_samplers(ctx->cso);
cso_restore_sampler_textures(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
pipe_texture_reference(&tex, NULL);
}
void renderer_copy_texture(struct renderer *ctx,
struct pipe_texture *src,
VGfloat sx1, VGfloat sy1,
VGfloat sx2, VGfloat sy2,
struct pipe_texture *dst,
VGfloat dx1, VGfloat dy1,
VGfloat dx2, VGfloat dy2)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_buffer *buf;
struct pipe_surface *dst_surf = screen->get_tex_surface(
screen, dst, 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_WRITE);
struct pipe_framebuffer_state fb;
float s0, t0, s1, t1;
assert(src->width0 != 0);
assert(src->height0 != 0);
assert(dst->width0 != 0);
assert(dst->height0 != 0);
#if 0
debug_printf("copy texture [%f, %f, %f, %f], [%f, %f, %f, %f]\n",
sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2);
#endif
#if 1
s0 = sx1 / src->width0;
s1 = sx2 / src->width0;
t0 = sy1 / src->height0;
t1 = sy2 / src->height0;
#else
s0 = 0;
s1 = 1;
t0 = 0;
t1 = 1;
#endif
assert(screen->is_format_supported(screen, dst_surf->format, PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
/* save state (restored below) */
cso_save_blend(ctx->cso);
cso_save_samplers(ctx->cso);
cso_save_sampler_textures(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_viewport(ctx->cso);
/* 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(ctx->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(ctx->cso, 0, &sampler);
cso_single_sampler_done(ctx->cso);
}
vg_set_viewport(ctx->owner, VEGA_Y0_TOP);
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &src);
/* shaders */
cso_set_vertex_shader_handle(ctx->cso, vg_texture_vs(ctx->owner));
cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
/* drawing dest */
memset(&fb, 0, sizeof(fb));
fb.width = dst_surf->width;
fb.height = dst_surf->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = dst_surf;
{
VGint i;
for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i)
fb.cbufs[i] = 0;
}
cso_set_framebuffer(ctx->cso, &fb);
/* draw quad */
buf = setup_vertex_data_tex(ctx,
dx1, dy1,
dx2, dy2,
s0, t0, s1, t1,
0.0f);
if (buf) {
util_draw_vertex_buffer(ctx->pipe, buf, 0,
PIPE_PRIM_TRIANGLE_FAN,
4, /* verts */
2); /* attribs/vert */
pipe_buffer_reference( &buf,
NULL );
}
/* restore state we changed */
cso_restore_blend(ctx->cso);
cso_restore_samplers(ctx->cso);
cso_restore_sampler_textures(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
pipe_surface_reference(&dst_surf, NULL);
}
/**
* 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);
}
