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ecore-drm2: Add API function to allow setting gamma of a given output 

Small patch to add an API function which will allow setting the gamma
level of a given output.

@feature

Signed-off-by: Chris Michael <cp.michael@samsung.com>
This commit is contained in:
Chris Michael 2016-11-29 09:15:07 -05:00
parent 4b4201584f
commit 6b350fc696
2 changed files with 30 additions and 1 deletions
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16
src/lib/ecore_drm2/Ecore_Drm2.h
View File

@ -704,6 +704,22 @@ EAPI void ecore_drm2_output_resolution_get(Ecore_Drm2_Output *output, int *w, in
*/
EAPI Eina_Bool ecore_drm2_output_possible_crtc_get(Ecore_Drm2_Output *output, unsigned int crtc);
/**
* Set the gamma level of an Ecore_Drm_Output
*
* This function will set the gamma of an Ecore_Drm2_Output
*
* @param output The Ecore_Drm2_Output to set the gamma level on
* @param size The gamma table size to set
* @param red The amount to scale the red channel
* @param green The amount to scale the green channel
* @param blue The amount to scale the blue channel
*
* @ingroup Ecore_Drm2_Output_Group
* @since 1.19
*/
EAPI void ecore_drm2_output_gamma_set(Ecore_Drm2_Output *output, uint16_t size, uint16_t *red, uint16_t *green, uint16_t *blue);
/**
* @defgroup Ecore_Drm2_Fb_Group Drm framebuffer functions
*

15
src/lib/ecore_drm2/ecore_drm2_outputs.c
View File

@ -754,7 +754,7 @@ _output_create(Ecore_Drm2_Device *dev, const drmModeRes *res, const drmModeConne
_output_backlight_init(output, conn->connector_type);
/* TODO: gamma */
output->gamma = output->ocrtc->gamma_size;
_output_modes_create(dev, output, conn);
@ -1501,3 +1501,16 @@ ecore_drm2_output_release_handler_set(Ecore_Drm2_Output *o, Ecore_Drm2_Release_H
o->release_data = data;
o->release_cb = cb;
}
EAPI void
ecore_drm2_output_gamma_set(Ecore_Drm2_Output *output, uint16_t size, uint16_t *red, uint16_t *green, uint16_t *blue)
{
EINA_SAFETY_ON_NULL_RETURN(output);
EINA_SAFETY_ON_TRUE_RETURN(output->fd < 0);
if (output->gamma != size) return;
if (sym_drmModeCrtcSetGamma(output->fd, output->crtc_id, size,
red, green, blue) < 0)
ERR("Failed to set gamma for Output %s: %m", output->name);
}