int main()
{
struct program *program = calloc(1, sizeof(struct program));
struct pipe_loader_device **devs = NULL;
const int max_devices = 32;
int idev, ndev;
/* find & list graphic devices */
ndev = pipe_loader_probe(&program->dev, max_devices);
devs = &program->dev;
for (idev = 0; idev < ndev; idev++)
{
printf("driver name: %s; type: %d\n", devs[idev]->driver_name, devs[idev]->type);
}
/* init a pipe screen */
program->screen = pipe_loader_create_screen(devs[0], PIPE_SEARCH_DIR);
/* create the pipe driver context and cso context */
program->pipe = program->screen->context_create(program->screen, NULL);
program->cso = cso_create_context(program->pipe);
/* destroy */
cso_destroy_context(program->cso);
program->pipe->destroy(program->pipe);
program->screen->destroy(program->screen);
return 0;
}
static struct st_context *
st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
{
uint i;
struct st_context *st = CALLOC_STRUCT( st_context );
ctx->st = st;
st->ctx = ctx;
st->pipe = pipe;
/* state tracker needs the VBO module */
_vbo_CreateContext(ctx);
#if FEATURE_feedback || FEATURE_drawpix
st->draw = draw_create(); /* for selection/feedback */
/* Disable draw options that might convert points/lines to tris, etc.
* as that would foul-up feedback/selection mode.
*/
draw_wide_line_threshold(st->draw, 1000.0f);
draw_wide_point_threshold(st->draw, 1000.0f);
draw_enable_line_stipple(st->draw, FALSE);
draw_enable_point_sprites(st->draw, FALSE);
#endif
st->dirty.mesa = ~0;
st->dirty.st = ~0;
st->cso_context = cso_create_context(pipe);
st_init_atoms( st );
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
st_init_generate_mipmap(st);
st_init_blit(st);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
st->state.sampler_list[i] = &st->state.samplers[i];
/* we want all vertex data to be placed in buffer objects */
vbo_use_buffer_objects(ctx);
/* Need these flags:
*/
st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
st->pixel_xfer.cache = _mesa_new_program_cache();
/* GL limits and extensions */
st_init_limits(st);
st_init_extensions(st);
return st;
}
struct vg_context * vg_create_context(struct pipe_context *pipe,
const void *visual,
struct vg_context *share)
{
struct vg_context *ctx;
ctx = CALLOC_STRUCT(vg_context);
ctx->pipe = pipe;
if (!choose_depth_stencil_format(ctx)) {
FREE(ctx);
return NULL;
}
ctx->dispatch = api_create_dispatch();
vg_init_state(&ctx->state.vg);
ctx->state.dirty = ALL_DIRTY;
ctx->cso_context = cso_create_context(pipe);
ctx->default_paint = paint_create(ctx);
ctx->state.vg.stroke_paint = ctx->default_paint;
ctx->state.vg.fill_paint = ctx->default_paint;
ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.normalized_coords = 0;
ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.normalized_coords = 0;
vg_set_error(ctx, VG_NO_ERROR);
ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create();
ctx->renderer = renderer_create(ctx);
ctx->sc = shaders_cache_create(ctx);
ctx->shader = shader_create(ctx);
ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context);
return ctx;
}
void
util_test_constant_buffer(struct pipe_context *ctx,
struct pipe_resource *constbuf)
{
struct cso_context *cso;
struct pipe_resource *cb;
void *fs, *vs;
bool pass = true;
static const float zero[] = {0, 0, 0, 0};
cso = cso_create_context(ctx, 0);
cb = util_create_texture2d(ctx->screen, 256, 256,
PIPE_FORMAT_R8G8B8A8_UNORM, 0);
util_set_common_states_and_clear(cso, ctx, cb);
pipe_set_constant_buffer(ctx, PIPE_SHADER_FRAGMENT, 0, constbuf);
/* Fragment shader. */
{
static const char *text = /* I don't like ureg... */
"FRAG\n"
"DCL CONST[0][0]\n"
"DCL OUT[0], COLOR\n"
"MOV OUT[0], CONST[0][0]\n"
"END\n";
struct tgsi_token tokens[1000];
struct pipe_shader_state state;
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
puts("Can't compile a fragment shader.");
util_report_result(FAIL);
return;
}
pipe_shader_state_from_tgsi(&state, tokens);
fs = ctx->create_fs_state(ctx, &state);
cso_set_fragment_shader_handle(cso, fs);
}
/* Vertex shader. */
vs = util_set_passthrough_vertex_shader(cso, ctx, false);
util_draw_fullscreen_quad(cso);
/* Probe pixels. */
pass = pass && util_probe_rect_rgba(ctx, cb, 0, 0, cb->width0,
cb->height0, zero);
/* Cleanup. */
cso_destroy_context(cso);
ctx->delete_vs_state(ctx, vs);
ctx->delete_fs_state(ctx, fs);
pipe_resource_reference(&cb, NULL);
util_report_result(pass);
}
static void
null_sampler_view(struct pipe_context *ctx, unsigned tgsi_tex_target)
{
struct cso_context *cso;
struct pipe_resource *cb;
void *fs, *vs;
bool pass = true;
/* 2 expected colors: */
static const float expected_tex[] = {0, 0, 0, 1,
0, 0, 0, 0};
static const float expected_buf[] = {0, 0, 0, 0};
const float *expected = tgsi_tex_target == TGSI_TEXTURE_BUFFER ?
expected_buf : expected_tex;
unsigned num_expected = tgsi_tex_target == TGSI_TEXTURE_BUFFER ? 1 : 2;
if (tgsi_tex_target == TGSI_TEXTURE_BUFFER &&
!ctx->screen->get_param(ctx->screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) {
util_report_result_helper(SKIP, "%s: %s", __func__,
tgsi_texture_names[tgsi_tex_target]);
return;
}
cso = cso_create_context(ctx, 0);
cb = util_create_texture2d(ctx->screen, 256, 256,
PIPE_FORMAT_R8G8B8A8_UNORM, 0);
util_set_common_states_and_clear(cso, ctx, cb);
ctx->set_sampler_views(ctx, PIPE_SHADER_FRAGMENT, 0, 1, NULL);
/* Fragment shader. */
fs = util_make_fragment_tex_shader(ctx, tgsi_tex_target,
TGSI_INTERPOLATE_LINEAR,
TGSI_RETURN_TYPE_FLOAT,
TGSI_RETURN_TYPE_FLOAT, false, false);
cso_set_fragment_shader_handle(cso, fs);
/* Vertex shader. */
vs = util_set_passthrough_vertex_shader(cso, ctx, false);
util_draw_fullscreen_quad(cso);
/* Probe pixels. */
pass = pass && util_probe_rect_rgba_multi(ctx, cb, 0, 0,
cb->width0, cb->height0, expected,
num_expected);
/* Cleanup. */
cso_destroy_context(cso);
ctx->delete_vs_state(ctx, vs);
ctx->delete_fs_state(ctx, fs);
pipe_resource_reference(&cb, NULL);
util_report_result_helper(pass, "%s: %s", __func__,
tgsi_texture_names[tgsi_tex_target]);
}
struct xorg_renderer * renderer_create(struct pipe_context *pipe)
{
struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer);
renderer->pipe = pipe;
renderer->cso = cso_create_context(pipe);
renderer->shaders = xorg_shaders_create(renderer);
renderer_init_state(renderer);
return renderer;
}
/**
* Test TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION.
*
* The viewport state is set as usual, but it should have no effect.
* Clipping should also be disabled.
*
* POSITION.xyz should already be multiplied by 1/w and POSITION.w should
* contain 1/w. By setting w=0, we can test that POSITION.xyz isn't
* multiplied by 1/w (otherwise nothing would be rendered).
*
* TODO: Whether the value of POSITION.w is correctly interpreted as 1/w
* during perspective interpolation is not tested.
*/
static void
tgsi_vs_window_space_position(struct pipe_context *ctx)
{
struct cso_context *cso;
struct pipe_resource *cb;
void *fs, *vs;
bool pass = true;
static const float red[] = {1, 0, 0, 1};
if (!ctx->screen->get_param(ctx->screen,
PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION)) {
util_report_result(SKIP);
return;
}
cso = cso_create_context(ctx);
cb = util_create_texture2d(ctx->screen, 256, 256,
PIPE_FORMAT_R8G8B8A8_UNORM);
util_set_common_states_and_clear(cso, ctx, cb);
/* Fragment shader. */
fs = util_make_fragment_passthrough_shader(ctx, TGSI_SEMANTIC_GENERIC,
TGSI_INTERPOLATE_LINEAR, TRUE);
cso_set_fragment_shader_handle(cso, fs);
/* Vertex shader. */
vs = util_set_passthrough_vertex_shader(cso, ctx, true);
/* Draw. */
{
static float vertices[] = {
0, 0, 0, 0, 1, 0, 0, 1,
0, 256, 0, 0, 1, 0, 0, 1,
256, 256, 0, 0, 1, 0, 0, 1,
256, 0, 0, 0, 1, 0, 0, 1,
};
util_set_interleaved_vertex_elements(cso, 2);
util_draw_user_vertex_buffer(cso, vertices, PIPE_PRIM_QUADS, 4, 2);
}
/* Probe pixels. */
pass = pass && util_probe_rect_rgba(ctx, cb, 0, 0,
cb->width0, cb->height0, red);
/* Cleanup. */
cso_destroy_context(cso);
ctx->delete_vs_state(ctx, vs);
ctx->delete_fs_state(ctx, fs);
pipe_resource_reference(&cb, NULL);
util_report_result(pass);
}
XA_EXPORT struct xa_context *
xa_context_create(struct xa_tracker *xa)
{
struct xa_context *ctx = calloc(1, sizeof(*ctx));
ctx->xa = xa;
ctx->pipe = xa->screen->context_create(xa->screen, NULL);
ctx->cso = cso_create_context(ctx->pipe);
ctx->shaders = xa_shaders_create(ctx);
renderer_init_state(ctx);
return ctx;
}
static void
null_fragment_shader(struct pipe_context *ctx)
{
struct cso_context *cso;
struct pipe_resource *cb;
void *vs;
struct pipe_rasterizer_state rs = {0};
struct pipe_query *query;
union pipe_query_result qresult;
cso = cso_create_context(ctx);
cb = util_create_texture2d(ctx->screen, 256, 256,
PIPE_FORMAT_R8G8B8A8_UNORM);
util_set_common_states_and_clear(cso, ctx, cb);
/* No rasterization. */
rs.rasterizer_discard = 1;
cso_set_rasterizer(cso, &rs);
vs = util_set_passthrough_vertex_shader(cso, ctx, false);
query = ctx->create_query(ctx, PIPE_QUERY_PRIMITIVES_GENERATED, 0);
ctx->begin_query(ctx, query);
util_draw_fullscreen_quad(cso);
ctx->end_query(ctx, query);
ctx->get_query_result(ctx, query, true, &qresult);
/* Cleanup. */
cso_destroy_context(cso);
ctx->delete_vs_state(ctx, vs);
ctx->destroy_query(ctx, query);
pipe_resource_reference(&cb, NULL);
/* Check PRIMITIVES_GENERATED. */
util_report_result(qresult.u64 == 2);
}
static void init_prog(struct program *p)
{
struct pipe_surface surf_tmpl;
int ret;
/* find a hardware device */
ret = pipe_loader_probe(&p->dev, 1);
assert(ret);
/* init a pipe screen */
p->screen = pipe_loader_create_screen(p->dev, PIPE_SEARCH_DIR);
assert(p->screen);
/* create the pipe driver context and cso context */
p->pipe = p->screen->context_create(p->screen, NULL);
p->cso = cso_create_context(p->pipe);
/* set clear color */
p->clear_color.f[0] = 0.3;
p->clear_color.f[1] = 0.1;
p->clear_color.f[2] = 0.3;
p->clear_color.f[3] = 1.0;
/* vertex buffer */
{
float vertices[4][2][4] = {
{
{ 0.9f, 0.9f, 0.0f, 1.0f },
{ 1.0f, 1.0f, 0.0f, 1.0f }
},
{
{ -0.9f, 0.9f, 0.0f, 1.0f },
{ 0.0f, 1.0f, 0.0f, 1.0f }
},
{
{ -0.9f, -0.9f, 0.0f, 1.0f },
{ 0.0f, 0.0f, 1.0f, 1.0f }
},
{
{ 0.9f, -0.9f, 0.0f, 1.0f },
{ 1.0f, 0.0f, 1.0f, 1.0f }
}
};
p->vbuf = pipe_buffer_create(p->screen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_DEFAULT, sizeof(vertices));
pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(vertices), vertices);
}
/* render target texture */
{
struct pipe_resource tmplt;
memset(&tmplt, 0, sizeof(tmplt));
tmplt.target = PIPE_TEXTURE_2D;
tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
tmplt.width0 = WIDTH;
tmplt.height0 = HEIGHT;
tmplt.depth0 = 1;
tmplt.array_size = 1;
tmplt.last_level = 0;
tmplt.bind = PIPE_BIND_RENDER_TARGET;
p->target = p->screen->resource_create(p->screen, &tmplt);
}
/* sampler texture */
{
uint32_t *ptr;
struct pipe_transfer *t;
struct pipe_resource t_tmplt;
struct pipe_sampler_view v_tmplt;
struct pipe_box box;
memset(&t_tmplt, 0, sizeof(t_tmplt));
t_tmplt.target = PIPE_TEXTURE_2D;
t_tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
t_tmplt.width0 = 2;
t_tmplt.height0 = 2;
t_tmplt.depth0 = 1;
t_tmplt.array_size = 1;
t_tmplt.last_level = 0;
t_tmplt.bind = PIPE_BIND_RENDER_TARGET;
p->tex = p->screen->resource_create(p->screen, &t_tmplt);
memset(&box, 0, sizeof(box));
box.width = 2;
box.height = 2;
ptr = p->pipe->transfer_map(p->pipe, p->tex, 0, PIPE_TRANSFER_WRITE, &box, &t);
ptr[0] = 0xffff0000;
ptr[1] = 0xff0000ff;
ptr[2] = 0xff00ff00;
ptr[3] = 0xffffff00;
p->pipe->transfer_unmap(p->pipe, t);
u_sampler_view_default_template(&v_tmplt, p->tex, p->tex->format);
p->view = p->pipe->create_sampler_view(p->pipe, p->tex, &v_tmplt);
}
/* disabled blending/masking */
memset(&p->blend, 0, sizeof(p->blend));
p->blend.rt[0].colormask = PIPE_MASK_RGBA;
/* no-op depth/stencil/alpha */
memset(&p->depthstencil, 0, sizeof(p->depthstencil));
/* rasterizer */
memset(&p->rasterizer, 0, sizeof(p->rasterizer));
p->rasterizer.cull_face = PIPE_FACE_NONE;
p->rasterizer.half_pixel_center = 1;
p->rasterizer.bottom_edge_rule = 1;
p->rasterizer.depth_clip = 1;
/* sampler */
memset(&p->sampler, 0, sizeof(p->sampler));
p->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
p->sampler.min_img_filter = PIPE_TEX_MIPFILTER_LINEAR;
p->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_LINEAR;
p->sampler.normalized_coords = 1;
surf_tmpl.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
surf_tmpl.u.tex.level = 0;
surf_tmpl.u.tex.first_layer = 0;
surf_tmpl.u.tex.last_layer = 0;
/* drawing destination */
memset(&p->framebuffer, 0, sizeof(p->framebuffer));
p->framebuffer.width = WIDTH;
p->framebuffer.height = HEIGHT;
p->framebuffer.nr_cbufs = 1;
p->framebuffer.cbufs[0] = p->pipe->create_surface(p->pipe, p->target, &surf_tmpl);
/* viewport, depth isn't really needed */
{
float x = 0;
float y = 0;
float z = FAR;
float half_width = (float)WIDTH / 2.0f;
float half_height = (float)HEIGHT / 2.0f;
float half_depth = ((float)FAR - (float)NEAR) / 2.0f;
float scale, bias;
if (FLIP) {
scale = -1.0f;
bias = (float)HEIGHT;
} else {
scale = 1.0f;
bias = 0.0f;
}
p->viewport.scale[0] = half_width;
p->viewport.scale[1] = half_height * scale;
p->viewport.scale[2] = half_depth;
p->viewport.translate[0] = half_width + x;
p->viewport.translate[1] = (half_height + y) * scale + bias;
p->viewport.translate[2] = half_depth + z;
}
/* vertex elements state */
memset(p->velem, 0, sizeof(p->velem));
p->velem[0].src_offset = 0 * 4 * sizeof(float); /* offset 0, first element */
p->velem[0].instance_divisor = 0;
p->velem[0].vertex_buffer_index = 0;
p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
p->velem[1].src_offset = 1 * 4 * sizeof(float); /* offset 16, second element */
p->velem[1].instance_divisor = 0;
p->velem[1].vertex_buffer_index = 0;
p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
/* vertex shader */
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC };
const uint semantic_indexes[] = { 0, 0 };
p->vs = util_make_vertex_passthrough_shader(p->pipe, 2, semantic_names, semantic_indexes, FALSE);
}
/* fragment shader */
p->fs = util_make_fragment_tex_shader(p->pipe, TGSI_TEXTURE_2D, TGSI_INTERPOLATE_LINEAR);
}
static struct st_context *
st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
const struct st_config_options *options)
{
struct pipe_screen *screen = pipe->screen;
uint i;
struct st_context *st = ST_CALLOC_STRUCT( st_context );
st->options = *options;
ctx->st = st;
st->ctx = ctx;
st->pipe = pipe;
/* XXX: this is one-off, per-screen init: */
st_debug_init();
/* state tracker needs the VBO module */
_vbo_CreateContext(ctx);
st->dirty.mesa = ~0;
st->dirty.st = ~0;
/* Create upload manager for vertex data for glBitmap, glDrawPixels,
* glClear, etc.
*/
st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STREAM);
if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
PIPE_BIND_INDEX_BUFFER,
PIPE_USAGE_STREAM);
}
if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_STREAM);
st->cso_context = cso_create_context(pipe);
st_init_atoms( st );
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
/* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
st->internal_target = PIPE_TEXTURE_2D;
else
st->internal_target = PIPE_TEXTURE_RECT;
/* Vertex element objects used for drawing rectangles for glBitmap,
* glDrawPixels, glClear, etc.
*/
for (i = 0; i < ARRAY_SIZE(st->velems_util_draw); i++) {
memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
st->velems_util_draw[i].instance_divisor = 0;
st->velems_util_draw[i].vertex_buffer_index =
cso_get_aux_vertex_buffer_slot(st->cso_context);
st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
/* we want all vertex data to be placed in buffer objects */
vbo_use_buffer_objects(ctx);
/* make sure that no VBOs are left mapped when we're drawing. */
vbo_always_unmap_buffers(ctx);
/* Need these flags:
*/
st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
st->has_stencil_export =
screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW);
st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW);
st->prefer_blit_based_texture_transfer = screen->get_param(screen,
PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
st->force_persample_in_shader =
screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
!screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
st->has_shareable_shaders = screen->get_param(screen,
PIPE_CAP_SHAREABLE_SHADERS);
st->needs_texcoord_semantic =
screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
st->apply_texture_swizzle_to_border_color =
!!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
(PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
st->has_time_elapsed =
screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
st->has_half_float_packing =
screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
st->has_multi_draw_indirect =
screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
/* GL limits and extensions */
st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
st_init_extensions(st->pipe->screen, &ctx->Const,
&ctx->Extensions, &st->options, ctx->Mesa_DXTn);
if (st_have_perfmon(st)) {
ctx->Extensions.AMD_performance_monitor = GL_TRUE;
}
/* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
st->clamp_vert_color_in_shader = GL_TRUE;
}
if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
st->clamp_frag_color_in_shader = GL_TRUE;
}
/* For drivers which cannot do color clamping, it's better to just
* disable ARB_color_buffer_float in the core profile, because
* the clamping is deprecated there anyway. */
if (ctx->API == API_OPENGL_CORE &&
(st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
st->clamp_vert_color_in_shader = GL_FALSE;
st->clamp_frag_color_in_shader = GL_FALSE;
ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
}
}
/* called after _mesa_create_context/_mesa_init_point, fix default user
* settable max point size up
*/
st->ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
ctx->Const.MaxPointSizeAA);
/* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;
if (!ctx->Extensions.ARB_gpu_shader5) {
for (i = 0; i < MESA_SHADER_STAGES; i++)
ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
}
/* Set which shader types can be compiled at link time. */
st->shader_has_one_variant[MESA_SHADER_VERTEX] =
st->has_shareable_shaders &&
!st->clamp_vert_color_in_shader;
st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
st->has_shareable_shaders &&
!st->clamp_frag_color_in_shader &&
!st->force_persample_in_shader;
st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
_mesa_compute_version(ctx);
if (ctx->Version == 0) {
/* This can happen when a core profile was requested, but the driver
* does not support some features of GL 3.1 or later.
*/
st_destroy_context_priv(st);
return NULL;
}
_mesa_initialize_dispatch_tables(ctx);
_mesa_initialize_vbo_vtxfmt(ctx);
return st;
}
static struct st_context *
st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
{
uint i;
struct st_context *st = ST_CALLOC_STRUCT( st_context );
ctx->st = st;
st->ctx = ctx;
st->pipe = pipe;
/* XXX: this is one-off, per-screen init: */
st_debug_init();
/* state tracker needs the VBO module */
_vbo_CreateContext(ctx);
st->dirty.mesa = ~0;
st->dirty.st = ~0;
st->cso_context = cso_create_context(pipe);
st_init_atoms( st );
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
st_init_generate_mipmap(st);
st_init_blit(st);
if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
st->internal_target = PIPE_TEXTURE_2D;
else
st->internal_target = PIPE_TEXTURE_RECT;
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
st->state.sampler_list[i] = &st->state.samplers[i];
for (i = 0; i < 3; i++) {
memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
st->velems_util_draw[i].instance_divisor = 0;
st->velems_util_draw[i].vertex_buffer_index = 0;
st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
/* we want all vertex data to be placed in buffer objects */
vbo_use_buffer_objects(ctx);
/* Need these flags:
*/
st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
st->pixel_xfer.cache = _mesa_new_program_cache();
st->force_msaa = st_get_msaa();
/* GL limits and extensions */
st_init_limits(st);
st_init_extensions(st);
return st;
}
static void
test_texture_barrier(struct pipe_context *ctx, bool use_fbfetch,
unsigned num_samples)
{
struct cso_context *cso;
struct pipe_resource *cb;
struct pipe_sampler_view *view = NULL;
char name[256];
const char *text;
assert(num_samples >= 1 && num_samples <= 8);
util_snprintf(name, sizeof(name), "%s: %s, %u samples", __func__,
use_fbfetch ? "FBFETCH" : "sampler", MAX2(num_samples, 1));
if (!ctx->screen->get_param(ctx->screen, PIPE_CAP_TEXTURE_BARRIER)) {
util_report_result_helper(SKIP, name);
return;
}
if (use_fbfetch &&
!ctx->screen->get_param(ctx->screen, PIPE_CAP_TGSI_FS_FBFETCH)) {
util_report_result_helper(SKIP, name);
return;
}
cso = cso_create_context(ctx, 0);
cb = util_create_texture2d(ctx->screen, 256, 256,
PIPE_FORMAT_R8G8B8A8_UNORM, num_samples);
util_set_common_states_and_clear(cso, ctx, cb);
/* Clear each sample to a different value. */
if (num_samples > 1) {
void *fs =
util_make_fragment_passthrough_shader(ctx, TGSI_SEMANTIC_GENERIC,
TGSI_INTERPOLATE_LINEAR, TRUE);
cso_set_fragment_shader_handle(cso, fs);
/* Vertex shader. */
void *vs = util_set_passthrough_vertex_shader(cso, ctx, false);
for (unsigned i = 0; i < num_samples / 2; i++) {
float value;
/* 2 consecutive samples should have the same color to test MSAA
* compression properly.
*/
if (num_samples == 2) {
value = 0.1;
} else {
/* The average value must be 0.1 */
static const float values[] = {
0.0, 0.2, 0.05, 0.15
};
value = values[i];
}
ctx->set_sample_mask(ctx, 0x3 << (i * 2));
util_draw_fullscreen_quad_fill(cso, value, value, value, value);
}
ctx->set_sample_mask(ctx, ~0);
cso_set_vertex_shader_handle(cso, NULL);
cso_set_fragment_shader_handle(cso, NULL);
ctx->delete_vs_state(ctx, vs);
ctx->delete_fs_state(ctx, fs);
}
if (use_fbfetch) {
/* Fragment shader. */
text = "FRAG\n"
"DCL OUT[0], COLOR[0]\n"
"DCL TEMP[0]\n"
"IMM[0] FLT32 { 0.1, 0.2, 0.3, 0.4}\n"
"FBFETCH TEMP[0], OUT[0]\n"
"ADD OUT[0], TEMP[0], IMM[0]\n"
"END\n";
} else {
struct pipe_sampler_view templ = {{0}};
templ.format = cb->format;
templ.target = cb->target;
templ.swizzle_r = PIPE_SWIZZLE_X;
templ.swizzle_g = PIPE_SWIZZLE_Y;
templ.swizzle_b = PIPE_SWIZZLE_Z;
templ.swizzle_a = PIPE_SWIZZLE_W;
view = ctx->create_sampler_view(ctx, cb, &templ);
ctx->set_sampler_views(ctx, PIPE_SHADER_FRAGMENT, 0, 1, &view);
/* Fragment shader. */
if (num_samples > 1) {
text = "FRAG\n"
"DCL SV[0], POSITION\n"
"DCL SV[1], SAMPLEID\n"
"DCL SAMP[0]\n"
"DCL SVIEW[0], 2D_MSAA, FLOAT\n"
"DCL OUT[0], COLOR[0]\n"
"DCL TEMP[0]\n"
"IMM[0] FLT32 { 0.1, 0.2, 0.3, 0.4}\n"
"F2I TEMP[0].xy, SV[0].xyyy\n"
"MOV TEMP[0].w, SV[1].xxxx\n"
"TXF TEMP[0], TEMP[0], SAMP[0], 2D_MSAA\n"
"ADD OUT[0], TEMP[0], IMM[0]\n"
"END\n";
} else {
text = "FRAG\n"
"DCL SV[0], POSITION\n"
"DCL SAMP[0]\n"
"DCL SVIEW[0], 2D, FLOAT\n"
"DCL OUT[0], COLOR[0]\n"
"DCL TEMP[0]\n"
"IMM[0] FLT32 { 0.1, 0.2, 0.3, 0.4}\n"
"IMM[1] INT32 { 0, 0, 0, 0}\n"
"F2I TEMP[0].xy, SV[0].xyyy\n"
"MOV TEMP[0].zw, IMM[1]\n"
"TXF TEMP[0], TEMP[0], SAMP[0], 2D\n"
"ADD OUT[0], TEMP[0], IMM[0]\n"
"END\n";
}
}
struct tgsi_token tokens[1000];
struct pipe_shader_state state;
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(0);
util_report_result_helper(FAIL, name);
return;
}
pipe_shader_state_from_tgsi(&state, tokens);
void *fs = ctx->create_fs_state(ctx, &state);
cso_set_fragment_shader_handle(cso, fs);
/* Vertex shader. */
void *vs = util_set_passthrough_vertex_shader(cso, ctx, false);
if (num_samples > 1 && !use_fbfetch)
ctx->set_min_samples(ctx, num_samples);
for (int i = 0; i < 2; i++) {
ctx->texture_barrier(ctx,
use_fbfetch ? PIPE_TEXTURE_BARRIER_FRAMEBUFFER :
PIPE_TEXTURE_BARRIER_SAMPLER);
util_draw_fullscreen_quad(cso);
}
if (num_samples > 1 && !use_fbfetch)
ctx->set_min_samples(ctx, 1);
/* Probe pixels.
*
* For single sample:
* result = 0.1 (clear) + (0.1, 0.2, 0.3, 0.4) * 2 = (0.3, 0.5, 0.7, 0.9)
*
* For MSAA 4x:
* sample0 = 0.0 (clear) + (0.1, 0.2, 0.3, 0.4) * 2 = (0.2, 0.4, 0.6, 0.8)
* sample1 = sample0
* sample2 = 0.2 (clear) + (0.1, 0.2, 0.3, 0.4) * 2 = (0.4, 0.6, 0.8, 1.0)
* sample3 = sample2
* resolved = sum(sample[0:3]) / 4 = (0.3, 0.5, 0.7, 0.9)
*/
static const float expected[] = {0.3, 0.5, 0.7, 0.9};
bool pass = util_probe_rect_rgba(ctx, cb, 0, 0,
cb->width0, cb->height0, expected);
/* Cleanup. */
cso_destroy_context(cso);
ctx->delete_vs_state(ctx, vs);
ctx->delete_fs_state(ctx, fs);
pipe_sampler_view_reference(&view, NULL);
pipe_resource_reference(&cb, NULL);
util_report_result_helper(pass, name);
}
static void
test_sync_file_fences(struct pipe_context *ctx)
{
struct pipe_screen *screen = ctx->screen;
bool pass = true;
enum pipe_fd_type fd_type = PIPE_FD_TYPE_NATIVE_SYNC;
if (!screen->get_param(screen, PIPE_CAP_NATIVE_FENCE_FD))
return;
struct cso_context *cso = cso_create_context(ctx, 0);
struct pipe_resource *buf =
pipe_buffer_create(screen, 0, PIPE_USAGE_DEFAULT, 1024 * 1024);
struct pipe_resource *tex =
util_create_texture2d(screen, 4096, 1024, PIPE_FORMAT_R8_UNORM, 0);
struct pipe_fence_handle *buf_fence = NULL, *tex_fence = NULL;
/* Run 2 clears, get fencess. */
uint32_t value = 0;
ctx->clear_buffer(ctx, buf, 0, buf->width0, &value, sizeof(value));
ctx->flush(ctx, &buf_fence, PIPE_FLUSH_FENCE_FD);
struct pipe_box box;
u_box_2d(0, 0, tex->width0, tex->height0, &box);
ctx->clear_texture(ctx, tex, 0, &box, &value);
ctx->flush(ctx, &tex_fence, PIPE_FLUSH_FENCE_FD);
pass = pass && buf_fence && tex_fence;
/* Export fences. */
int buf_fd = screen->fence_get_fd(screen, buf_fence);
int tex_fd = screen->fence_get_fd(screen, tex_fence);
pass = pass && buf_fd >= 0 && tex_fd >= 0;
/* Merge fences. */
int merged_fd = sync_merge("test", buf_fd, tex_fd);
pass = pass && merged_fd >= 0;
/* (Re)import all fences. */
struct pipe_fence_handle *re_buf_fence = NULL, *re_tex_fence = NULL;
struct pipe_fence_handle *merged_fence = NULL;
ctx->create_fence_fd(ctx, &re_buf_fence, buf_fd, fd_type);
ctx->create_fence_fd(ctx, &re_tex_fence, tex_fd, fd_type);
ctx->create_fence_fd(ctx, &merged_fence, merged_fd, fd_type);
pass = pass && re_buf_fence && re_tex_fence && merged_fence;
/* Run another clear after waiting for everything. */
struct pipe_fence_handle *final_fence = NULL;
ctx->fence_server_sync(ctx, merged_fence);
value = 0xff;
ctx->clear_buffer(ctx, buf, 0, buf->width0, &value, sizeof(value));
ctx->flush(ctx, &final_fence, PIPE_FLUSH_FENCE_FD);
pass = pass && final_fence;
/* Wait for the last fence. */
int final_fd = screen->fence_get_fd(screen, final_fence);
pass = pass && final_fd >= 0;
pass = pass && sync_wait(final_fd, -1) == 0;
/* Check that all fences are signalled. */
pass = pass && sync_wait(buf_fd, 0) == 0;
pass = pass && sync_wait(tex_fd, 0) == 0;
pass = pass && sync_wait(merged_fd, 0) == 0;
pass = pass && screen->fence_finish(screen, NULL, buf_fence, 0);
pass = pass && screen->fence_finish(screen, NULL, tex_fence, 0);
pass = pass && screen->fence_finish(screen, NULL, re_buf_fence, 0);
pass = pass && screen->fence_finish(screen, NULL, re_tex_fence, 0);
pass = pass && screen->fence_finish(screen, NULL, merged_fence, 0);
pass = pass && screen->fence_finish(screen, NULL, final_fence, 0);
/* Cleanup. */
#ifndef PIPE_OS_WINDOWS
if (buf_fd >= 0)
close(buf_fd);
if (tex_fd >= 0)
close(tex_fd);
if (merged_fd >= 0)
close(merged_fd);
if (final_fd >= 0)
close(final_fd);
#endif
screen->fence_reference(screen, &buf_fence, NULL);
screen->fence_reference(screen, &tex_fence, NULL);
screen->fence_reference(screen, &re_buf_fence, NULL);
screen->fence_reference(screen, &re_tex_fence, NULL);
screen->fence_reference(screen, &merged_fence, NULL);
screen->fence_reference(screen, &final_fence, NULL);
cso_destroy_context(cso);
pipe_resource_reference(&buf, NULL);
pipe_resource_reference(&tex, NULL);
util_report_result(pass);
}
struct vg_context * vg_create_context(struct pipe_context *pipe,
const void *visual,
struct vg_context *share)
{
struct vg_context *ctx;
unsigned i;
ctx = CALLOC_STRUCT(vg_context);
ctx->pipe = pipe;
if (!choose_depth_stencil_format(ctx)) {
FREE(ctx);
return NULL;
}
ctx->dispatch = api_create_dispatch();
vg_init_state(&ctx->state.vg);
ctx->state.dirty = ALL_DIRTY;
ctx->cso_context = cso_create_context(pipe);
init_clear(ctx);
ctx->default_paint = paint_create(ctx);
ctx->state.vg.stroke_paint = ctx->default_paint;
ctx->state.vg.fill_paint = ctx->default_paint;
ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.normalized_coords = 0;
ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.normalized_coords = 0;
for (i = 0; i < 2; i++) {
ctx->velems[i].src_offset = i * 4 * sizeof(float);
ctx->velems[i].instance_divisor = 0;
ctx->velems[i].vertex_buffer_index = 0;
ctx->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
vg_set_error(ctx, VG_NO_ERROR);
ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create();
ctx->renderer = renderer_create(ctx);
ctx->sc = shaders_cache_create(ctx);
ctx->shader = shader_create(ctx);
ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context);
return ctx;
}
static struct st_context *
st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
const struct st_config_options *options)
{
struct pipe_screen *screen = pipe->screen;
uint i;
struct st_context *st = ST_CALLOC_STRUCT( st_context );
st->options = *options;
ctx->st = st;
st->ctx = ctx;
st->pipe = pipe;
/* XXX: this is one-off, per-screen init: */
st_debug_init();
/* state tracker needs the VBO module */
_vbo_CreateContext(ctx);
st->dirty.mesa = ~0;
st->dirty.st = ~0;
/* Create upload manager for vertex data for glBitmap, glDrawPixels,
* glClear, etc.
*/
st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);
if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4,
PIPE_BIND_INDEX_BUFFER);
}
if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) {
unsigned alignment =
screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment,
PIPE_BIND_CONSTANT_BUFFER);
}
st->cso_context = cso_create_context(pipe);
st_init_atoms( st );
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
st_init_generate_mipmap(st);
/* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
st->internal_target = PIPE_TEXTURE_2D;
else
st->internal_target = PIPE_TEXTURE_RECT;
/* Vertex element objects used for drawing rectangles for glBitmap,
* glDrawPixels, glClear, etc.
*/
for (i = 0; i < Elements(st->velems_util_draw); i++) {
memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
st->velems_util_draw[i].instance_divisor = 0;
st->velems_util_draw[i].vertex_buffer_index =
cso_get_aux_vertex_buffer_slot(st->cso_context);
st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
/* we want all vertex data to be placed in buffer objects */
vbo_use_buffer_objects(ctx);
/* make sure that no VBOs are left mapped when we're drawing. */
vbo_always_unmap_buffers(ctx);
/* Need these flags:
*/
st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
st->pixel_xfer.cache = _mesa_new_program_cache();
st->has_stencil_export =
screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
st->prefer_blit_based_texture_transfer = screen->get_param(screen,
PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
st->needs_texcoord_semantic =
screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
st->apply_texture_swizzle_to_border_color =
!!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
(PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
/* GL limits and extensions */
st_init_limits(st);
st_init_extensions(st);
_mesa_compute_version(ctx);
_mesa_initialize_dispatch_tables(ctx);
_mesa_initialize_vbo_vtxfmt(ctx);
return st;
}
struct st_context *
st_context_create(struct st_device *st_dev)
{
struct st_context *st_ctx;
st_ctx = CALLOC_STRUCT(st_context);
if(!st_ctx)
return NULL;
st_device_reference(&st_ctx->st_dev, st_dev);
st_ctx->real_pipe = st_dev->st_ws->context_create(st_dev->real_screen);
if(!st_ctx->real_pipe) {
st_context_destroy(st_ctx);
return NULL;
}
st_ctx->pipe = trace_context_create(st_dev->screen, st_ctx->real_pipe);
if(!st_ctx->pipe) {
st_context_destroy(st_ctx);
return NULL;
}
st_ctx->cso = cso_create_context(st_ctx->pipe);
if(!st_ctx->cso) {
st_context_destroy(st_ctx);
return NULL;
}
/* disabled blending/masking */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.colormask = PIPE_MASK_RGBA;
cso_set_blend(st_ctx->cso, &blend);
}
/* no-op depth/stencil/alpha */
{
struct pipe_depth_stencil_alpha_state depthstencil;
memset(&depthstencil, 0, sizeof(depthstencil));
cso_set_depth_stencil_alpha(st_ctx->cso, &depthstencil);
}
/* rasterizer */
{
struct pipe_rasterizer_state rasterizer;
memset(&rasterizer, 0, sizeof(rasterizer));
rasterizer.front_winding = PIPE_WINDING_CW;
rasterizer.cull_mode = PIPE_WINDING_NONE;
cso_set_rasterizer(st_ctx->cso, &rasterizer);
}
/* clip */
{
struct pipe_clip_state clip;
memset(&clip, 0, sizeof(clip));
st_ctx->pipe->set_clip_state(st_ctx->pipe, &clip);
}
/* identity viewport */
{
struct pipe_viewport_state viewport;
viewport.scale[0] = 1.0;
viewport.scale[1] = 1.0;
viewport.scale[2] = 1.0;
viewport.scale[3] = 1.0;
viewport.translate[0] = 0.0;
viewport.translate[1] = 0.0;
viewport.translate[2] = 0.0;
viewport.translate[3] = 0.0;
cso_set_viewport(st_ctx->cso, &viewport);
}
/* samplers */
{
struct pipe_sampler_state sampler;
unsigned i;
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_NEAREST;
sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.normalized_coords = 1;
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
cso_single_sampler(st_ctx->cso, i, &sampler);
cso_single_sampler_done(st_ctx->cso);
}
/* default textures */
{
struct pipe_screen *screen = st_dev->screen;
struct pipe_texture templat;
struct pipe_transfer *transfer;
unsigned i;
memset( &templat, 0, sizeof( templat ) );
templat.target = PIPE_TEXTURE_2D;
templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
templat.block.size = 4;
templat.block.width = 1;
templat.block.height = 1;
templat.width[0] = 1;
templat.height[0] = 1;
templat.depth[0] = 1;
templat.last_level = 0;
st_ctx->default_texture = screen->texture_create( screen, &templat );
if(st_ctx->default_texture) {
transfer = screen->get_tex_transfer(screen,
st_ctx->default_texture,
0, 0, 0,
PIPE_TRANSFER_WRITE,
0, 0,
st_ctx->default_texture->width[0],
st_ctx->default_texture->height[0]);
if (transfer) {
uint32_t *map;
map = (uint32_t *) screen->transfer_map(screen, transfer);
if(map) {
*map = 0x00000000;
screen->transfer_unmap(screen, transfer);
}
screen->tex_transfer_destroy(transfer);
}
}
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
pipe_texture_reference(&st_ctx->sampler_textures[i], st_ctx->default_texture);
cso_set_sampler_textures(st_ctx->cso, PIPE_MAX_SAMPLERS, st_ctx->sampler_textures);
}
/* vertex shader */
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC };
const uint semantic_indexes[] = { 0, 0 };
st_ctx->vs = util_make_vertex_passthrough_shader(st_ctx->pipe,
2,
semantic_names,
semantic_indexes);
cso_set_vertex_shader_handle(st_ctx->cso, st_ctx->vs);
}
/* fragment shader */
{
st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe);
cso_set_fragment_shader_handle(st_ctx->cso, st_ctx->fs);
}
return st_ctx;
}
static void init_prog(struct program *p)
{
struct pipe_surface surf_tmpl;
int ret;
/* find a hardware device */
ret = pipe_loader_probe(&p->dev, 1);
assert(ret);
/* init a pipe screen */
p->screen = pipe_loader_create_screen(p->dev, PIPE_SEARCH_DIR);
assert(p->screen);
/* create the pipe driver context and cso context */
p->pipe = p->screen->context_create(p->screen, NULL);
p->cso = cso_create_context(p->pipe);
/* set clear color */
p->clear_color.f[0] = 0.3;
p->clear_color.f[1] = 0.1;
p->clear_color.f[2] = 0.3;
p->clear_color.f[3] = 1.0;
/* vertex buffer */
{
float vertices[4][2][4] = {
{
{ 0.0f, -0.9f, 0.0f, 1.0f },
{ 1.0f, 0.0f, 0.0f, 1.0f }
},
{
{ -0.9f, 0.9f, 0.0f, 1.0f },
{ 0.0f, 1.0f, 0.0f, 1.0f }
},
{
{ 0.9f, 0.9f, 0.0f, 1.0f },
{ 0.0f, 0.0f, 1.0f, 1.0f }
}
};
p->vbuf = pipe_buffer_create(p->screen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STATIC, sizeof(vertices));
pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(vertices), vertices);
}
/* render target texture */
{
struct pipe_resource tmplt;
memset(&tmplt, 0, sizeof(tmplt));
tmplt.target = PIPE_TEXTURE_2D;
tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
tmplt.width0 = WIDTH;
tmplt.height0 = HEIGHT;
tmplt.depth0 = 1;
tmplt.array_size = 1;
tmplt.last_level = 0;
tmplt.bind = PIPE_BIND_RENDER_TARGET;
p->target = p->screen->resource_create(p->screen, &tmplt);
}
/* disabled blending/masking */
memset(&p->blend, 0, sizeof(p->blend));
p->blend.rt[0].colormask = PIPE_MASK_RGBA;
/* no-op depth/stencil/alpha */
memset(&p->depthstencil, 0, sizeof(p->depthstencil));
/* rasterizer */
memset(&p->rasterizer, 0, sizeof(p->rasterizer));
p->rasterizer.cull_face = PIPE_FACE_NONE;
p->rasterizer.gl_rasterization_rules = 1;
p->rasterizer.depth_clip = 1;
surf_tmpl.format = PIPE_FORMAT_B8G8R8A8_UNORM;
surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
surf_tmpl.u.tex.level = 0;
surf_tmpl.u.tex.first_layer = 0;
surf_tmpl.u.tex.last_layer = 0;
/* drawing destination */
memset(&p->framebuffer, 0, sizeof(p->framebuffer));
p->framebuffer.width = WIDTH;
p->framebuffer.height = HEIGHT;
p->framebuffer.nr_cbufs = 1;
p->framebuffer.cbufs[0] = p->pipe->create_surface(p->pipe, p->target, &surf_tmpl);
/* viewport, depth isn't really needed */
{
float x = 0;
float y = 0;
float z = FAR;
float half_width = (float)WIDTH / 2.0f;
float half_height = (float)HEIGHT / 2.0f;
float half_depth = ((float)FAR - (float)NEAR) / 2.0f;
float scale, bias;
if (FLIP) {
scale = -1.0f;
bias = (float)HEIGHT;
} else {
scale = 1.0f;
bias = 0.0f;
}
p->viewport.scale[0] = half_width;
p->viewport.scale[1] = half_height * scale;
p->viewport.scale[2] = half_depth;
p->viewport.scale[3] = 1.0f;
p->viewport.translate[0] = half_width + x;
p->viewport.translate[1] = (half_height + y) * scale + bias;
p->viewport.translate[2] = half_depth + z;
p->viewport.translate[3] = 0.0f;
}
/* vertex elements state */
memset(p->velem, 0, sizeof(p->velem));
p->velem[0].src_offset = 0 * 4 * sizeof(float); /* offset 0, first element */
p->velem[0].instance_divisor = 0;
p->velem[0].vertex_buffer_index = 0;
p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
p->velem[1].src_offset = 1 * 4 * sizeof(float); /* offset 16, second element */
p->velem[1].instance_divisor = 0;
p->velem[1].vertex_buffer_index = 0;
p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
/* vertex shader */
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_COLOR };
const uint semantic_indexes[] = { 0, 0 };
p->vs = util_make_vertex_passthrough_shader(p->pipe, 2, semantic_names, semantic_indexes);
}
/* fragment shader */
p->fs = util_make_fragment_passthrough_shader(p->pipe);
}
/** Initialize the internal details */
struct program *
pp_init_prog(struct pp_queue_t *ppq, struct pipe_screen *pscreen)
{
struct program *p;
pp_debug("Initializing program\n");
if (!pscreen)
return NULL;
p = CALLOC(1, sizeof(struct program));
if (!p)
return NULL;
p->screen = pscreen;
p->pipe = pscreen->context_create(pscreen, NULL);
p->cso = cso_create_context(p->pipe);
{
static const float verts[4][2][4] = {
{
{1.0f, 1.0f, 0.0f, 1.0f},
{1.0f, 1.0f, 0.0f, 1.0f}
},
{
{-1.0f, 1.0f, 0.0f, 1.0f},
{0.0f, 1.0f, 0.0f, 1.0f}
},
{
{-1.0f, -1.0f, 0.0f, 1.0f},
{0.0f, 0.0f, 0.0f, 1.0f}
},
{
{1.0f, -1.0f, 0.0f, 1.0f},
{1.0f, 0.0f, 0.0f, 1.0f}
}
};
p->vbuf = pipe_buffer_create(pscreen, PIPE_BIND_VERTEX_BUFFER,
PIPE_USAGE_STATIC, sizeof(verts));
pipe_buffer_write(p->pipe, p->vbuf, 0, sizeof(verts), verts);
}
p->blend.rt[0].colormask = PIPE_MASK_RGBA;
p->blend.rt[0].rgb_src_factor = p->blend.rt[0].alpha_src_factor =
PIPE_BLENDFACTOR_SRC_ALPHA;
p->blend.rt[0].rgb_dst_factor = p->blend.rt[0].alpha_dst_factor =
PIPE_BLENDFACTOR_INV_SRC_ALPHA;
p->rasterizer.cull_face = PIPE_FACE_NONE;
p->rasterizer.gl_rasterization_rules = 1;
p->sampler.wrap_s = p->sampler.wrap_t = p->sampler.wrap_r =
PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
p->sampler.min_img_filter = p->sampler.mag_img_filter =
PIPE_TEX_FILTER_LINEAR;
p->sampler.normalized_coords = 1;
p->sampler_point.wrap_s = p->sampler_point.wrap_t =
p->sampler_point.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
p->sampler_point.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
p->sampler_point.min_img_filter = p->sampler_point.mag_img_filter =
PIPE_TEX_FILTER_NEAREST;
p->sampler_point.normalized_coords = 1;
p->velem[0].src_offset = 0;
p->velem[0].instance_divisor = 0;
p->velem[0].vertex_buffer_index = 0;
p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
p->velem[1].src_offset = 1 * 4 * sizeof(float);
p->velem[1].instance_divisor = 0;
p->velem[1].vertex_buffer_index = 0;
p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
if (!p->screen->is_format_supported(p->screen,
PIPE_FORMAT_R32G32B32A32_FLOAT,
PIPE_BUFFER, 1,
PIPE_BIND_VERTEX_BUFFER))
pp_debug("Vertex buf format fail\n");
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC
};
const uint semantic_indexes[] = { 0, 0 };
p->passvs = util_make_vertex_passthrough_shader(p->pipe, 2,
semantic_names,
semantic_indexes);
}
p->framebuffer.nr_cbufs = 1;
p->surf.usage = PIPE_BIND_RENDER_TARGET;
p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
p->pipe->set_sample_mask(p->pipe, ~0);
return p;
}
