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drm/amd/display: Refactor to move gamma correction to module 

Refactor part 4 - Moving input gamma correction programming into color module

DM will translate to dc_gamma structure, but programming will be moved into
the color module. Later, this will allow gamma correction to be added on top of
in/out transfer function curves.

Signed-off-by: Anthony Koo <anthony.koo@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Anthony Koo 2016-12-16 10:43:21 -05:00 committed by Alex Deucher
parent cb9a5a90ee
commit c5ea922237
2 changed files with 81 additions and 0 deletions
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77
drivers/gpu/drm/amd/display/modules/color/color.c
View File

@ -69,6 +69,7 @@ struct color_state {
struct color_range saturation;
struct color_range brightness;
struct color_range hue;
struct dc_gamma *gamma;
enum dc_quantization_range preferred_quantization_range;
};
@ -1265,6 +1266,26 @@ static void calculate_csc_matrix(struct core_color *core_color,
}
}
static struct dc_surface *dc_stream_to_surface_from_pipe_ctx(
struct core_color *core_color,
const struct dc_stream *stream)
{
int i;
struct core_dc *core_dc = DC_TO_CORE(core_color->dc);
struct core_stream *core_stream = DC_STREAM_TO_CORE(stream);
struct dc_surface *out_surface = NULL;
for (i = 0; i < MAX_PIPES; i++) {
if (core_dc->current_context->res_ctx.pipe_ctx[i].stream
== core_stream) {
out_surface = &core_dc->current_context->res_ctx.
pipe_ctx[i].surface->public;
break;
}
}
return out_surface;
}
struct mod_color *mod_color_create(struct dc *dc)
{
int i = 0;
@ -1369,6 +1390,10 @@ void mod_color_destroy(struct mod_color *mod_color)
struct core_color *core_color =
MOD_COLOR_TO_CORE(mod_color);
for (i = 0; i < core_color->num_sinks; i++)
if (core_color->state[i].gamma)
dc_gamma_release(core_color->state[i].gamma);
dm_free(core_color->state);
for (i = 0; i < core_color->num_sinks; i++)
@ -1552,6 +1577,9 @@ bool mod_color_remove_sink(struct mod_color *mod_color,
for (i = 0; i < core_color->num_sinks; i++) {
if (core_color->caps[i].sink == sink) {
if (core_color->state[i].gamma)
dc_gamma_release(core_color->state[i].gamma);
/* To remove this sink, shift everything after down */
for (j = i; j < core_color->num_sinks - 1; j++) {
core_color->caps[j].sink =
@ -2184,6 +2212,55 @@ bool mod_color_set_saturation(struct mod_color *mod_color,
return true;
}
bool mod_color_set_input_gamma_correction(struct mod_color *mod_color,
const struct dc_stream **streams, int num_streams,
struct dc_gamma *gamma)
{
struct core_color *core_color = MOD_COLOR_TO_CORE(mod_color);
unsigned int stream_index, sink_index;
for (stream_index = 0; stream_index < num_streams; stream_index++) {
sink_index = sink_index_from_sink(core_color,
streams[stream_index]->sink);
struct dc_surface *surface =
dc_stream_to_surface_from_pipe_ctx(core_color,
streams[stream_index]);
if (surface != NULL) {
struct dc_transfer_func *input_tf =
dc_create_transfer_func(core_color->dc);
struct dc_surface_update updates = {0};
if (input_tf != NULL) {
input_tf->type = TF_TYPE_PREDEFINED;
input_tf->tf = TRANSFER_FUNCTION_SRGB;
}
if (core_color->state[sink_index].gamma != gamma) {
if (core_color->state[sink_index].gamma)
dc_gamma_release(
core_color->state[sink_index].
gamma);
dc_gamma_retain(gamma);
core_color->state[sink_index].gamma = gamma;
}
updates.surface = surface;
updates.gamma = gamma;
updates.in_transfer_func = input_tf;
dc_update_surfaces_for_target(core_color->dc, &updates,
1, NULL);
if (input_tf != NULL)
dc_transfer_func_release(input_tf);
}
}
return true;
}
bool mod_color_persist_user_preferred_quantization_range(
struct mod_color *mod_color,
const struct dc_sink *sink,

4
drivers/gpu/drm/amd/display/modules/inc/mod_color.h
View File

@ -168,6 +168,10 @@ bool mod_color_set_saturation(struct mod_color *mod_color,
const struct dc_stream **streams, int num_streams,
int saturation_value);
bool mod_color_set_input_gamma_correction(struct mod_color *mod_color,
const struct dc_stream **streams, int num_streams,
struct dc_gamma *gamma);
bool mod_color_persist_user_preferred_quantization_range(
struct mod_color *mod_color,
const struct dc_sink *sink,