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(Windows) Implement get_metrics for D3D and WGL context drivers

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This commit is contained in:
twinaphex 2015-04-08 22:06:33 +02:00
parent 88c300cb58
commit 5e4647994b
2 changed files with 71 additions and 2 deletions
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38
gfx/drivers_context/d3d_ctx.cpp
View File

@ -492,6 +492,42 @@ static void gfx_ctx_d3d_swap_interval(void *data, unsigned interval)
#endif
}
static bool gfx_ctx_d3d_get_metrics(void *data,
enum display_metric_types type, float *value)
{
#ifdef _XBOX
return false;
#else
HDC monitor = GetDC(NULL);
int pixels_x = GetDeviceCaps(monitor, HORZRES);
int pixels_y = GetDeviceCaps(monitor, VERTRES);
int physical_width = GetDeviceCaps(monitor, HORZSIZE);
int physical_height = GetDeviceCaps(monitor, VERTSIZE);
ReleaseDC(NULL, monitor);
switch (type)
{
case DISPLAY_METRIC_MM_WIDTH:
*value = physical_width;
break;
case DISPLAY_METRIC_MM_HEIGHT:
*value = physical_height;
break;
case DISPLAY_METRIC_DPI:
/* 25.4 mm in an inch. */
*value = 254 * pixels_x / physical_width / 10;
break;
case DISPLAY_METRIC_NONE:
default:
*value = 0;
return false;
}
return true;
#endif
}
const gfx_ctx_driver_t gfx_ctx_d3d = {
gfx_ctx_d3d_init,
gfx_ctx_d3d_destroy,
@ -502,7 +538,7 @@ const gfx_ctx_driver_t gfx_ctx_d3d = {
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
NULL, /* get_metrics */
gfx_ctx_d3d_get_metrics,
NULL,
gfx_ctx_d3d_update_title,
gfx_ctx_d3d_check_window,

35
gfx/drivers_context/wgl_ctx.c
View File

@ -664,6 +664,39 @@ static gfx_ctx_proc_t gfx_ctx_wgl_get_proc_address(const char *symbol)
return (gfx_ctx_proc_t)GetProcAddress(dll_handle, symbol);
}
static bool gfx_ctx_wgl_get_metrics(void *data,
enum display_metric_types type, float *value)
{
bool ret = true;
HDC monitor = GetDC(NULL);
int pixels_x = GetDeviceCaps(monitor, HORZRES);
int pixels_y = GetDeviceCaps(monitor, VERTRES);
int physical_width = GetDeviceCaps(monitor, HORZSIZE);
int physical_height = GetDeviceCaps(monitor, VERTSIZE);
ReleaseDC(NULL, monitor);
switch (type)
{
case DISPLAY_METRIC_MM_WIDTH:
*value = physical_width;
break;
case DISPLAY_METRIC_MM_HEIGHT:
*value = physical_height;
break;
case DISPLAY_METRIC_DPI:
/* 25.4 mm in an inch. */
*value = 254 * pixels_x / physical_width / 10;
break;
case DISPLAY_METRIC_NONE:
default:
*value = 0;
return false;
}
return true;
}
static bool gfx_ctx_wgl_bind_api(void *data,
enum gfx_ctx_api api, unsigned major, unsigned minor)
{
@ -699,7 +732,7 @@ const gfx_ctx_driver_t gfx_ctx_wgl = {
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
NULL, /* get_metrics */
gfx_ctx_wgl_get_metrics,
NULL,
gfx_ctx_wgl_update_window_title,
gfx_ctx_wgl_check_window,