static void
update_textures(struct st_context *st,
gl_shader_stage mesa_shader,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLuint unit;
struct gl_shader_program *shader =
st->ctx->_Shader->CurrentProgram[mesa_shader];
unsigned glsl_version = shader ? shader->Version : 0;
unsigned shader_stage = st_shader_stage_to_ptarget(mesa_shader);
if (samplers_used == 0x0 && old_max == 0)
return;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
retval = update_single_texture(st, &sampler_view, texUnit,
glsl_version);
if (retval == GL_FALSE)
continue;
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
*num_textures,
sampler_views);
}
/**
* Make all bindless images bound to image units resident in the context.
*/
void
st_make_bound_images_resident(struct st_context *st,
struct gl_program *prog)
{
enum pipe_shader_type shader = st_shader_stage_to_ptarget(prog->info.stage);
struct st_bound_handles *bound_handles = &st->bound_image_handles[shader];
struct pipe_context *pipe = st->pipe;
GLuint64 handle;
int i;
/* Remove previous bound image handles for this stage. */
st_destroy_bound_image_handles_per_stage(st, shader);
if (likely(!prog->sh.HasBoundBindlessImage))
return;
for (i = 0; i < prog->sh.NumBindlessImages; i++) {
struct gl_bindless_image *image = &prog->sh.BindlessImages[i];
if (!image->bound)
continue;
/* Request a new image handle from the driver and make it resident. */
handle = st_create_image_handle_from_unit(st, prog, image->unit);
if (!handle)
continue;
pipe->make_image_handle_resident(st->pipe, handle, GL_READ_WRITE, true);
/* Overwrite the image unit value by the resident handle before uploading
* the constant buffer.
*/
*(uint64_t *)image->data = handle;
/* Store the handle in the context. */
bound_handles->handles = (uint64_t *)
realloc(bound_handles->handles,
(bound_handles->num_handles + 1) * sizeof(uint64_t));
bound_handles->handles[bound_handles->num_handles] = handle;
bound_handles->num_handles++;
}
}
static void
update_textures(struct st_context *st,
gl_shader_stage mesa_shader,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLbitfield free_slots = ~prog->SamplersUsed;
GLbitfield external_samplers_used = prog->ExternalSamplersUsed;
GLuint unit;
enum pipe_shader_type shader_stage = st_shader_stage_to_ptarget(mesa_shader);
if (samplers_used == 0x0 && old_max == 0)
return;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
/* prog->sh.data is NULL if it's ARB_fragment_program */
unsigned glsl_version = prog->sh.data ? prog->sh.data->Version : 0;
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
retval = update_single_texture(st, &sampler_view, texUnit,
glsl_version);
if (retval == GL_FALSE)
continue;
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
/* For any external samplers with multiplaner YUV, stuff the additional
* sampler views we need at the end.
*
* Trying to cache the sampler view in the stObj looks painful, so just
* re-create the sampler view for the extra planes each time. Main use
* case is video playback (ie. fps games wouldn't be using this) so I
* guess no point to try to optimize this feature.
*/
while (unlikely(external_samplers_used)) {
GLuint unit = u_bit_scan(&external_samplers_used);
GLuint extra = 0;
struct st_texture_object *stObj =
st_get_texture_object(st->ctx, prog, unit);
struct pipe_sampler_view tmpl;
if (!stObj)
continue;
/* use original view as template: */
tmpl = *sampler_views[unit];
switch (st_get_view_format(stObj)) {
case PIPE_FORMAT_NV12:
/* we need one additional R8G8 view: */
tmpl.format = PIPE_FORMAT_RG88_UNORM;
tmpl.swizzle_g = PIPE_SWIZZLE_Y; /* tmpl from Y plane is R8 */
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
break;
case PIPE_FORMAT_IYUV:
/* we need two additional R8 views: */
tmpl.format = PIPE_FORMAT_R8_UNORM;
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next, &tmpl);
extra = u_bit_scan(&free_slots);
sampler_views[extra] =
st->pipe->create_sampler_view(st->pipe, stObj->pt->next->next, &tmpl);
break;
default:
break;
}
*num_textures = MAX2(*num_textures, extra + 1);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
*num_textures,
sampler_views);
}
/**
* Pass the given program parameters to the graphics pipe as a
* constant buffer.
* \param shader_type either PIPE_SHADER_VERTEX or PIPE_SHADER_FRAGMENT
*/
void st_upload_constants( struct st_context *st,
struct gl_program_parameter_list *params,
gl_shader_stage stage)
{
enum pipe_shader_type shader_type = st_shader_stage_to_ptarget(stage);
assert(shader_type == PIPE_SHADER_VERTEX ||
shader_type == PIPE_SHADER_FRAGMENT ||
shader_type == PIPE_SHADER_GEOMETRY ||
shader_type == PIPE_SHADER_TESS_CTRL ||
shader_type == PIPE_SHADER_TESS_EVAL ||
shader_type == PIPE_SHADER_COMPUTE);
/* update the ATI constants before rendering */
if (shader_type == PIPE_SHADER_FRAGMENT && st->fp->ati_fs) {
struct ati_fragment_shader *ati_fs = st->fp->ati_fs;
unsigned c;
for (c = 0; c < MAX_NUM_FRAGMENT_CONSTANTS_ATI; c++) {
if (ati_fs->LocalConstDef & (1 << c))
memcpy(params->ParameterValues[c],
ati_fs->Constants[c], sizeof(GLfloat) * 4);
else
memcpy(params->ParameterValues[c],
st->ctx->ATIFragmentShader.GlobalConstants[c], sizeof(GLfloat) * 4);
}
}
/* update constants */
if (params && params->NumParameters) {
struct pipe_constant_buffer cb;
const uint paramBytes = params->NumParameters * sizeof(GLfloat) * 4;
/* Update the constants which come from fixed-function state, such as
* transformation matrices, fog factors, etc. The rest of the values in
* the parameters list are explicitly set by the user with glUniform,
* glProgramParameter(), etc.
*/
if (params->StateFlags)
_mesa_load_state_parameters(st->ctx, params);
_mesa_shader_write_subroutine_indices(st->ctx, stage);
/* We always need to get a new buffer, to keep the drivers simple and
* avoid gratuitous rendering synchronization.
* Let's use a user buffer to avoid an unnecessary copy.
*/
if (st->constbuf_uploader) {
cb.buffer = NULL;
cb.user_buffer = NULL;
u_upload_data(st->constbuf_uploader, 0, paramBytes,
st->ctx->Const.UniformBufferOffsetAlignment,
params->ParameterValues, &cb.buffer_offset, &cb.buffer);
u_upload_unmap(st->constbuf_uploader);
} else {
cb.buffer = NULL;
cb.user_buffer = params->ParameterValues;
cb.buffer_offset = 0;
}
cb.buffer_size = paramBytes;
if (ST_DEBUG & DEBUG_CONSTANTS) {
debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n",
__func__, shader_type, params->NumParameters,
params->StateFlags);
_mesa_print_parameter_list(params);
}
cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb);
pipe_resource_reference(&cb.buffer, NULL);
st->state.constants[shader_type].ptr = params->ParameterValues;
st->state.constants[shader_type].size = paramBytes;
}
else if (st->state.constants[shader_type].ptr) {
/* Unbind. */
st->state.constants[shader_type].ptr = NULL;
st->state.constants[shader_type].size = 0;
cso_set_constant_buffer(st->cso_context, shader_type, 0, NULL);
}
}
