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RetroArch/gfx/gfx_display.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2016-2019 - Brad Parker
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "gfx_display.h"
#include "video_coord_array.h"
#include "../configuration.h"
#include "../verbosity.h"
/* Standard reference DPI value, used when determining
* DPI-aware scaling factors */
#define REFERENCE_DPI 96.0f
/* 'OZONE_SIDEBAR_WIDTH' must be kept in sync
* with Ozone driver metrics */
#define OZONE_SIDEBAR_WIDTH 408
/* TODO/FIXME - global that gets referenced outside,
* needs to be refactored */
uintptr_t gfx_display_white_texture;
static bool gfx_display_null_font_init_first(
void **font_handle, void *video_data,
const char *font_path, float font_size,
bool is_threaded)
{
font_data_t **handle = (font_data_t**)font_handle;
if ((*handle = font_driver_init_first(video_data,
font_path, font_size, true,
is_threaded,
FONT_DRIVER_RENDER_DONT_CARE)))
return true;
return false;
}
static const float *null_get_default_matrix(void)
{
static float dummy[16] = {0.0f};
return &dummy[0];
}
gfx_display_ctx_driver_t gfx_display_ctx_null = {
NULL, /* draw */
NULL, /* draw_pipeline */
NULL, /* blend_begin */
NULL, /* blend_end */
NULL, /* get_default_mvp */
null_get_default_matrix,
null_get_default_matrix,
gfx_display_null_font_init_first,
GFX_VIDEO_DRIVER_GENERIC,
"null",
false,
NULL,
NULL
};
/* Menu display drivers */
static gfx_display_ctx_driver_t *gfx_display_ctx_drivers[] = {
#ifdef HAVE_D3D8
&gfx_display_ctx_d3d8,
#endif
#ifdef HAVE_D3D9
&gfx_display_ctx_d3d9,
#endif
#ifdef HAVE_D3D10
&gfx_display_ctx_d3d10,
#endif
#ifdef HAVE_D3D11
&gfx_display_ctx_d3d11,
#endif
#ifdef HAVE_D3D12
&gfx_display_ctx_d3d12,
#endif
#ifdef HAVE_OPENGL
&gfx_display_ctx_gl,
#endif
#ifdef HAVE_OPENGL1
&gfx_display_ctx_gl1,
#endif
#ifdef HAVE_OPENGL_CORE
&gfx_display_ctx_gl_core,
#endif
#ifdef HAVE_VULKAN
&gfx_display_ctx_vulkan,
#endif
#ifdef HAVE_METAL
&gfx_display_ctx_metal,
#endif
#ifdef HAVE_VITA2D
&gfx_display_ctx_vita2d,
#endif
#ifdef _3DS
&gfx_display_ctx_ctr,
#endif
#ifdef WIIU
&gfx_display_ctx_wiiu,
#endif
#if defined(_WIN32) && !defined(_XBOX) && !defined(__WINRT__)
#ifdef HAVE_GDI
&gfx_display_ctx_gdi,
#endif
#endif
&gfx_display_ctx_null,
NULL,
};
float gfx_display_get_adjusted_scale(
gfx_display_t *p_disp,
float base_scale, float scale_factor, unsigned width)
{
/* Apply user-set scaling factor */
float adjusted_scale = base_scale * scale_factor;
#ifdef HAVE_OZONE
/* Ozone has a capped scale factor */
if (p_disp->menu_driver_id == MENU_DRIVER_ID_OZONE)
{
float new_width = (float)width * 0.3333333f;
if (((float)OZONE_SIDEBAR_WIDTH * adjusted_scale)
> new_width)
adjusted_scale = (new_width / (float)OZONE_SIDEBAR_WIDTH);
}
#endif
/* Ensure final scale is 'sane' */
if (adjusted_scale <= 0.0001f)
return 1.0f;
return adjusted_scale;
}
/* Check if the current menu driver is compatible
* with your video driver. */
static bool gfx_display_check_compatibility(
enum gfx_display_driver_type type,
bool video_is_threaded)
{
const char *video_driver = video_driver_get_ident();
switch (type)
{
case GFX_VIDEO_DRIVER_GENERIC:
return true;
case GFX_VIDEO_DRIVER_OPENGL:
if (string_is_equal(video_driver, "gl"))
return true;
break;
case GFX_VIDEO_DRIVER_OPENGL1:
if (string_is_equal(video_driver, "gl1"))
return true;
break;
case GFX_VIDEO_DRIVER_OPENGL_CORE:
if (string_is_equal(video_driver, "glcore"))
return true;
break;
case GFX_VIDEO_DRIVER_VULKAN:
if (string_is_equal(video_driver, "vulkan"))
return true;
break;
case GFX_VIDEO_DRIVER_METAL:
if (string_is_equal(video_driver, "metal"))
return true;
break;
case GFX_VIDEO_DRIVER_DIRECT3D8:
if (string_is_equal(video_driver, "d3d8"))
return true;
break;
case GFX_VIDEO_DRIVER_DIRECT3D9:
if (string_is_equal(video_driver, "d3d9"))
return true;
break;
case GFX_VIDEO_DRIVER_DIRECT3D10:
if (string_is_equal(video_driver, "d3d10"))
return true;
break;
case GFX_VIDEO_DRIVER_DIRECT3D11:
if (string_is_equal(video_driver, "d3d11"))
return true;
break;
case GFX_VIDEO_DRIVER_DIRECT3D12:
if (string_is_equal(video_driver, "d3d12"))
return true;
break;
case GFX_VIDEO_DRIVER_VITA2D:
if (string_is_equal(video_driver, "vita2d"))
return true;
break;
case GFX_VIDEO_DRIVER_CTR:
if (string_is_equal(video_driver, "ctr"))
return true;
break;
case GFX_VIDEO_DRIVER_WIIU:
if (string_is_equal(video_driver, "gx2"))
return true;
break;
case GFX_VIDEO_DRIVER_GDI:
if (string_is_equal(video_driver, "gdi"))
return true;
break;
case GFX_VIDEO_DRIVER_SWITCH:
if (string_is_equal(video_driver, "switch"))
return true;
break;
}
return false;
}
float gfx_display_get_dpi_scale_internal(
unsigned width, unsigned height)
{
float dpi;
float diagonal_pixels;
float pixel_scale;
static unsigned last_width = 0;
static unsigned last_height = 0;
static float scale = 0.0f;
static bool scale_cached = false;
gfx_ctx_metrics_t metrics;
if (scale_cached &&
(width == last_width) &&
(height == last_height))
return scale;
/* Determine the diagonal 'size' of the display
* (or window) in terms of pixels */
diagonal_pixels = (float)sqrt(
(double)((width * width) + (height * height)));
/* TODO/FIXME: On Mac, calling video_context_driver_get_metrics()
* here causes RetroArch to crash (EXC_BAD_ACCESS). This is
* unfortunate, and needs to be fixed at the gfx context driver
* level. Until this is done, all we can do is fallback to using
* the old legacy 'magic number' scaling on Mac platforms. */
#if !defined(HAVE_COCOATOUCH) && (defined(HAVE_COCOA) || defined(HAVE_COCOA_METAL))
if (true)
{
scale = (diagonal_pixels / 6.5f) / 212.0f;
scale_cached = true;
last_width = width;
last_height = height;
return scale;
}
#endif
/* Get pixel scale relative to baseline 1080p display */
pixel_scale = diagonal_pixels / DIAGONAL_PIXELS_1080P;
/* Attempt to get display DPI */
metrics.type = DISPLAY_METRIC_DPI;
metrics.value = &dpi;
if (video_context_driver_get_metrics(&metrics) && (dpi > 0.0f))
{
float display_size;
float dpi_scale;
#if defined(ANDROID) || defined(HAVE_COCOATOUCH)
/* Android/iOS devices tell complete lies when
* reporting DPI values. From the Android devices
* I've had access to, the DPI is generally
* overestimated by 17%. All we can do is apply
* a blind correction factor... */
dpi *= 0.83f;
#endif
/* Note: If we are running in windowed mode, this
* 'display size' is actually the window size - which
* kinda makes a mess of everything. Since we cannot
* get fullscreen resolution when running in windowed
* mode, there is nothing we can do about this. So just
* treat the window as a display, and hope for the best... */
display_size = diagonal_pixels / dpi;
dpi_scale = dpi / REFERENCE_DPI;
/* Note: We have tried leveraging every possible metric
* (and numerous studies on TV/monitor/mobile device
* usage habits) to determine an appropriate auto scaling
* factor. *None of these 'smart'/technical methods work
* consistently in the real world* - there is simply too
* much variance.
* So instead we have implemented a very fuzzy/loose
* method which is crude as can be, but actually has
* some semblance of usability... */
if (display_size > 24.0f)
{
/* DPI scaling fails miserably when using large
* displays. Having a UI element that's 1 inch high
* on all screens might seem like a good idea - until
* you realise that a HTPC user is probably sitting
* several metres from their TV, which makes something
* 1 inch high virtually invisible.
* So we make some assumptions:
* - Normal size displays <= 24 inches are probably
* PC monitors, with an eye-to-screen distance of
* 1 arm length. Under these conditions, fixed size
* (DPI scaled) UI elements should be visible for most
* users
* - Large displays > 24 inches start to encroach on
* TV territory. Once we start working with TVs, we
* have to consider users sitting on a couch - and
* in this situation, we fall back to the age-old
* standard of UI elements occupying a fixed fraction
* of the display size (i.e. just look at the menu of
* any console system for the past decade)
* - 24 -> 32 inches is a grey area, where the display
* might be a monitor or a TV. Above 32 inches, a TV
* is almost a certainty. So we simply lerp between
* dpi scaling and pixel scaling as the display size
* increases from 24 to 32 */
float fraction = (display_size > 32.0f) ? 32.0f : display_size;
fraction -= 24.0f;
fraction /= (32.0f - 24.0f);
scale = ((1.0f - fraction) * dpi_scale)
+ (fraction * pixel_scale);
}
else if (display_size < 12.0f)
{
/* DPI scaling also fails when using very small
* displays - i.e. mobile devices (tablets/phones).
* That 1 inch UI element is going to look pretty
* dumb on a 5 inch screen in landscape orientation...
* We're essentially in the opposite situation to the
* TV case above, and it turns out that a similar
* solution provides relief: as screen size reduces
* from 12 inches to zero, we lerp from dpi scaling
* to pixel scaling */
float fraction = display_size / 12.0f;
scale = ((1.0f - fraction) * pixel_scale)
+ (fraction * dpi_scale);
}
else
scale = dpi_scale;
}
/* If DPI retrieval is unsupported, all we can do
* is use the raw pixel scale */
else
scale = pixel_scale;
scale_cached = true;
last_width = width;
last_height = height;
return scale;
}
float gfx_display_get_dpi_scale(
gfx_display_t *p_disp,
void *settings_data,
unsigned width, unsigned height)
{
static unsigned last_width = 0;
static unsigned last_height = 0;
static float scale = 0.0f;
static bool scale_cached = false;
bool scale_updated = false;
static float last_menu_scale_factor = 0.0f;
static enum menu_driver_id_type last_menu_driver_id = MENU_DRIVER_ID_UNKNOWN;
static float adjusted_scale = 1.0f;
settings_t *settings = (settings_t*)settings_data;
float menu_scale_factor = settings->floats.menu_scale_factor;
/* Scale is based on display metrics - these are a fixed
* hardware property. To minimise performance overheads
* we therefore only call video_context_driver_get_metrics()
* on first run, or when the current video resolution changes */
if (!scale_cached ||
(width != last_width) ||
(height != last_height))
{
scale = gfx_display_get_dpi_scale_internal(width, height);
scale_cached = true;
scale_updated = true;
last_width = width;
last_height = height;
}
/* Adjusted scale calculation may also be slow, so
* only update if something changes */
if (scale_updated ||
(menu_scale_factor != last_menu_scale_factor) ||
(p_disp->menu_driver_id != last_menu_driver_id))
{
adjusted_scale = gfx_display_get_adjusted_scale(
p_disp,
scale, menu_scale_factor, width);
last_menu_scale_factor = menu_scale_factor;
last_menu_driver_id = p_disp->menu_driver_id;
}
return adjusted_scale;
}
/* Begin scissoring operation */
void gfx_display_scissor_begin(
gfx_display_t *p_disp,
void *userdata,
unsigned video_width,
unsigned video_height,
int x, int y, unsigned width, unsigned height)
{
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (dispctx && dispctx->scissor_begin)
{
if (y < 0)
{
if (height < (unsigned)(-y))
height = 0;
else
height += y;
y = 0;
}
if (x < 0)
{
if (width < (unsigned)(-x))
width = 0;
else
width += x;
x = 0;
}
if (y >= (int)video_height)
{
height = 0;
y = 0;
}
if (x >= (int)video_width)
{
width = 0;
x = 0;
}
if ((y + height) > video_height)
height = video_height - y;
if ((x + width) > video_width)
width = video_width - x;
dispctx->scissor_begin(userdata,
video_width, video_height,
x, y, width, height);
}
}
font_data_t *gfx_display_font_file(
gfx_display_t *p_disp,
char* fontpath, float menu_font_size, bool is_threaded)
{
font_data_t *font_data = NULL;
float font_size = menu_font_size;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (!dispctx)
return NULL;
/* Font size must be at least 2, or font_init_first()
* will generate a heap-buffer-overflow when using
* many font drivers */
if (font_size < 2.0f)
font_size = 2.0f;
if (!dispctx->font_init_first((void**)&font_data,
video_driver_get_ptr(),
fontpath, font_size, is_threaded))
return NULL;
return font_data;
}
void gfx_display_draw_bg(
gfx_display_t *p_disp,
gfx_display_ctx_draw_t *draw,
void *userdata, bool add_opacity_to_wallpaper,
float override_opacity)
{
static struct video_coords coords;
const float *new_vertex = NULL;
const float *new_tex_coord = NULL;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (!dispctx || !draw)
return;
if (draw->vertex)
new_vertex = draw->vertex;
else if (dispctx->get_default_vertices)
new_vertex = dispctx->get_default_vertices();
if (draw->tex_coord)
new_tex_coord = draw->tex_coord;
else if (dispctx->get_default_tex_coords)
new_tex_coord = dispctx->get_default_tex_coords();
coords.vertices = (unsigned)draw->vertex_count;
coords.vertex = new_vertex;
coords.tex_coord = new_tex_coord;
coords.lut_tex_coord = new_tex_coord;
coords.color = (const float*)draw->color;
draw->coords = &coords;
draw->scale_factor = 1.0f;
draw->rotation = 0.0f;
if (draw->texture)
add_opacity_to_wallpaper = true;
else
draw->texture = gfx_display_white_texture;
if (add_opacity_to_wallpaper)
gfx_display_set_alpha(draw->color, override_opacity);
if (dispctx->get_default_mvp)
draw->matrix_data = (math_matrix_4x4*)dispctx->get_default_mvp(
userdata);
}
void gfx_display_draw_quad(
gfx_display_t *p_disp,
void *data,
unsigned video_width,
unsigned video_height,
int x, int y, unsigned w, unsigned h,
unsigned width, unsigned height,
float *color)
{
gfx_display_ctx_draw_t draw;
struct video_coords coords;
gfx_display_ctx_driver_t
*dispctx = p_disp->dispctx;
if (w == 0 || h == 0)
return;
if (!dispctx)
return;
coords.vertices = 4;
coords.vertex = NULL;
coords.tex_coord = NULL;
coords.lut_tex_coord = NULL;
coords.color = color;
draw.x = x;
draw.y = (int)height - y - (int)h;
draw.width = w;
draw.height = h;
draw.coords = &coords;
draw.matrix_data = NULL;
draw.texture = gfx_display_white_texture;
draw.prim_type = GFX_DISPLAY_PRIM_TRIANGLESTRIP;
draw.pipeline_id = 0;
draw.scale_factor = 1.0f;
draw.rotation = 0.0f;
if (dispctx->blend_begin)
dispctx->blend_begin(data);
if (dispctx->draw)
dispctx->draw(&draw, data, video_width, video_height);
if (dispctx->blend_end)
dispctx->blend_end(data);
}
void gfx_display_draw_polygon(
gfx_display_t *p_disp,
void *userdata,
unsigned video_width,
unsigned video_height,
int x1, int y1,
int x2, int y2,
int x3, int y3,
int x4, int y4,
unsigned width, unsigned height,
float *color)
{
float vertex[8];
gfx_display_ctx_draw_t draw;
struct video_coords coords;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (width == 0 || height == 0)
return;
if (!dispctx)
return;
vertex[0] = x1 / (float)width;
vertex[1] = y1 / (float)height;
vertex[2] = x2 / (float)width;
vertex[3] = y2 / (float)height;
vertex[4] = x3 / (float)width;
vertex[5] = y3 / (float)height;
vertex[6] = x4 / (float)width;
vertex[7] = y4 / (float)height;
coords.vertices = 4;
coords.vertex = &vertex[0];
coords.tex_coord = NULL;
coords.lut_tex_coord = NULL;
coords.color = color;
draw.x = 0;
draw.y = 0;
draw.width = width;
draw.height = height;
draw.coords = &coords;
draw.matrix_data = NULL;
draw.texture = gfx_display_white_texture;
draw.prim_type = GFX_DISPLAY_PRIM_TRIANGLESTRIP;
draw.pipeline_id = 0;
draw.scale_factor = 1.0f;
draw.rotation = 0.0f;
if (dispctx->blend_begin)
dispctx->blend_begin(userdata);
if (dispctx->draw)
dispctx->draw(&draw, userdata, video_width, video_height);
if (dispctx->blend_end)
dispctx->blend_end(userdata);
}
static void gfx_display_draw_texture(
gfx_display_t *p_disp,
gfx_display_ctx_driver_t *dispctx,
void *userdata,
unsigned video_width,
unsigned video_height,
int x, int y, unsigned w, unsigned h,
unsigned width, unsigned height,
float *color, uintptr_t texture,
gfx_display_ctx_draw_t *draw
)
{
if (w == 0 || h == 0)
return;
if (!dispctx || !dispctx->draw)
return;
draw->width = w;
draw->height = h;
draw->prim_type = GFX_DISPLAY_PRIM_TRIANGLESTRIP;
draw->pipeline_id = 0;
draw->texture = texture;
draw->x = x;
draw->y = height - y;
dispctx->draw(draw, userdata, video_width, video_height);
}
/* Draw the texture split into 9 sections, without scaling the corners.
* The middle sections will only scale in the X axis, and the side
* sections will only scale in the Y axis. */
void gfx_display_draw_texture_slice(
gfx_display_t *p_disp,
void *userdata,
unsigned video_width,
unsigned video_height,
int x, int y, unsigned w, unsigned h,
unsigned new_w, unsigned new_h,
unsigned width, unsigned height,
float *color, unsigned offset, float scale_factor, uintptr_t texture)
{
gfx_display_ctx_draw_t draw;
gfx_display_ctx_rotate_draw_t rotate_draw;
struct video_coords coords;
math_matrix_4x4 mymat;
gfx_display_ctx_driver_t
*dispctx = p_disp->dispctx;
float V_BL[2], V_BR[2], V_TL[2], V_TR[2], T_BL[2], T_BR[2], T_TL[2], T_TR[2];
/* To prevent visible seams between the corners and
* middle segments of the sliced texture, the texture
* must be scaled such that its effective size (before
* expansion of the middle segments) is no greater than
* the requested display size.
* > This is consequence of the way textures are rendered
* in hardware...
* > Whenever an image is scaled, the colours at the
* transparent edges get interpolated, which means
* the colours of the transparent pixels themselves bleed
* into the visible area.
* > This effectively 'blurs' anything that gets scaled
* [SIDE NOTE: this causes additional issues if the transparent
* pixels have the wrong colour - i.e. if they are black,
* every edge gets a nasty dark border...]
* > This burring is a problem because (by design) the corners
* of the sliced texture are drawn at native resolution,
* whereas the middle segments are stretched to fit the
* requested dimensions. Consequently, the corners are sharp
* while the middle segments are blurred.
* > When *upscaling* the middle segments (i.e. display size
* greater than texture size), the visible effects of this
* are mostly imperceptible.
* > When *downscaling* them, however, the interpolation effects
* completely dominate the output image - creating an ugly
* transition between the corners and middle parts.
* > Since this is a property of hardware rendering, it is not
* practical to fix this 'properly'...
* > However: An effective workaround is to force downscaling of
* the entire texture (including corners) whenever the
* requested display size is less than the texture dimensions.
* > This blurs the corners enough that the corner/middle
* transitions are essentially invisible. */
float max_scale_w = (float)new_w / (float)w;
float max_scale_h = (float)new_h / (float)h;
/* Find the minimum of scale_factor, max_scale_w, max_scale_h */
float slice_scale = (scale_factor < max_scale_w) ?
(scale_factor < max_scale_h) ? scale_factor : max_scale_h :
(max_scale_w < max_scale_h) ? max_scale_w : max_scale_h;
/* need space for the coordinates of two triangles in a strip,
* so 8 vertices */
float tex_coord[8];
float vert_coord[8];
static float colors[16] = {
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f
};
/* normalized width/height of the amount to offset from the corners,
* for both the vertex and texture coordinates */
float vert_woff = (offset * slice_scale) / (float)width;
float vert_hoff = (offset * slice_scale) / (float)height;
float tex_woff = offset / (float)w;
float tex_hoff = offset / (float)h;
/* the width/height of the middle sections of both the scaled and original image */
float vert_scaled_mid_width = (new_w - (offset * slice_scale * 2))
/ (float)width;
float vert_scaled_mid_height = (new_h - (offset * slice_scale * 2))
/ (float)height;
float tex_mid_width = (w - (offset * 2)) / (float)w;
float tex_mid_height = (h - (offset * 2)) / (float)h;
/* normalized coordinates for the start position of the image */
float norm_x = x / (float)width;
float norm_y = (height - y) / (float)height;
if (width == 0 || height == 0)
return;
if (!dispctx || !dispctx->draw)
return;
/* the four vertices of the top-left corner of the image,
* used as a starting point for all the other sections */
V_BL[0] = norm_x;
V_BL[1] = norm_y;
V_BR[0] = norm_x + vert_woff;
V_BR[1] = norm_y;
V_TL[0] = norm_x;
V_TL[1] = norm_y + vert_hoff;
V_TR[0] = norm_x + vert_woff;
V_TR[1] = norm_y + vert_hoff;
T_BL[0] = 0.0f;
T_BL[1] = tex_hoff;
T_BR[0] = tex_woff;
T_BR[1] = tex_hoff;
T_TL[0] = 0.0f;
T_TL[1] = 0.0f;
T_TR[0] = tex_woff;
T_TR[1] = 0.0f;
rotate_draw.matrix = &mymat;
rotate_draw.rotation = 0.0;
rotate_draw.scale_x = 1.0;
rotate_draw.scale_y = 1.0;
rotate_draw.scale_z = 1;
rotate_draw.scale_enable = true;
coords.vertices = 4;
coords.vertex = vert_coord;
coords.tex_coord = tex_coord;
coords.lut_tex_coord = NULL;
draw.width = width;
draw.height = height;
draw.coords = &coords;
draw.matrix_data = &mymat;
draw.prim_type = GFX_DISPLAY_PRIM_TRIANGLESTRIP;
draw.pipeline_id = 0;
coords.color = (const float*)(color == NULL ? colors : color);
gfx_display_rotate_z(p_disp, &rotate_draw, userdata);
draw.texture = texture;
draw.x = 0;
draw.y = 0;
/* vertex coords are specfied bottom-up in this order: BL BR TL TR */
/* texture coords are specfied top-down in this order: BL BR TL TR */
/* If someone wants to change this to not draw several times, the
* coordinates will need to be modified because of the triangle strip usage. */
/* top-left corner */
vert_coord[0] = V_BL[0];
vert_coord[1] = V_BL[1];
vert_coord[2] = V_BR[0];
vert_coord[3] = V_BR[1];
vert_coord[4] = V_TL[0];
vert_coord[5] = V_TL[1];
vert_coord[6] = V_TR[0];
vert_coord[7] = V_TR[1];
tex_coord[0] = T_BL[0];
tex_coord[1] = T_BL[1];
tex_coord[2] = T_BR[0];
tex_coord[3] = T_BR[1];
tex_coord[4] = T_TL[0];
tex_coord[5] = T_TL[1];
tex_coord[6] = T_TR[0];
tex_coord[7] = T_TR[1];
dispctx->draw(&draw, userdata, video_width, video_height);
/* top-middle section */
vert_coord[0] = V_BL[0] + vert_woff;
vert_coord[1] = V_BL[1];
vert_coord[2] = V_BR[0] + vert_scaled_mid_width;
vert_coord[3] = V_BR[1];
vert_coord[4] = V_TL[0] + vert_woff;
vert_coord[5] = V_TL[1];
vert_coord[6] = V_TR[0] + vert_scaled_mid_width;
vert_coord[7] = V_TR[1];
tex_coord[0] = T_BL[0] + tex_woff;
tex_coord[1] = T_BL[1];
tex_coord[2] = T_BR[0] + tex_mid_width;
tex_coord[3] = T_BR[1];
tex_coord[4] = T_TL[0] + tex_woff;
tex_coord[5] = T_TL[1];
tex_coord[6] = T_TR[0] + tex_mid_width;
tex_coord[7] = T_TR[1];
dispctx->draw(&draw, userdata, video_width, video_height);
/* top-right corner */
vert_coord[0] = V_BL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[1] = V_BL[1];
vert_coord[2] = V_BR[0] + vert_scaled_mid_width + vert_woff;
vert_coord[3] = V_BR[1];
vert_coord[4] = V_TL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[5] = V_TL[1];
vert_coord[6] = V_TR[0] + vert_scaled_mid_width + vert_woff;
vert_coord[7] = V_TR[1];
tex_coord[0] = T_BL[0] + tex_woff + tex_mid_width;
tex_coord[1] = T_BL[1];
tex_coord[2] = T_BR[0] + tex_mid_width + tex_woff;
tex_coord[3] = T_BR[1];
tex_coord[4] = T_TL[0] + tex_woff + tex_mid_width;
tex_coord[5] = T_TL[1];
tex_coord[6] = T_TR[0] + tex_mid_width + tex_woff;
tex_coord[7] = T_TR[1];
dispctx->draw(&draw, userdata, video_width, video_height);
/* middle-left section */
vert_coord[0] = V_BL[0];
vert_coord[1] = V_BL[1] - vert_scaled_mid_height;
vert_coord[2] = V_BR[0];
vert_coord[3] = V_BR[1] - vert_scaled_mid_height;
vert_coord[4] = V_TL[0];
vert_coord[5] = V_TL[1] - vert_hoff;
vert_coord[6] = V_TR[0];
vert_coord[7] = V_TR[1] - vert_hoff;
tex_coord[0] = T_BL[0];
tex_coord[1] = T_BL[1] + tex_mid_height;
tex_coord[2] = T_BR[0];
tex_coord[3] = T_BR[1] + tex_mid_height;
tex_coord[4] = T_TL[0];
tex_coord[5] = T_TL[1] + tex_hoff;
tex_coord[6] = T_TR[0];
tex_coord[7] = T_TR[1] + tex_hoff;
dispctx->draw(&draw, userdata, video_width, video_height);
/* center section */
vert_coord[0] = V_BL[0] + vert_woff;
vert_coord[1] = V_BL[1] - vert_scaled_mid_height;
vert_coord[2] = V_BR[0] + vert_scaled_mid_width;
vert_coord[3] = V_BR[1] - vert_scaled_mid_height;
vert_coord[4] = V_TL[0] + vert_woff;
vert_coord[5] = V_TL[1] - vert_hoff;
vert_coord[6] = V_TR[0] + vert_scaled_mid_width;
vert_coord[7] = V_TR[1] - vert_hoff;
tex_coord[0] = T_BL[0] + tex_woff;
tex_coord[1] = T_BL[1] + tex_mid_height;
tex_coord[2] = T_BR[0] + tex_mid_width;
tex_coord[3] = T_BR[1] + tex_mid_height;
tex_coord[4] = T_TL[0] + tex_woff;
tex_coord[5] = T_TL[1] + tex_hoff;
tex_coord[6] = T_TR[0] + tex_mid_width;
tex_coord[7] = T_TR[1] + tex_hoff;
dispctx->draw(&draw, userdata, video_width, video_height);
/* middle-right section */
vert_coord[0] = V_BL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[1] = V_BL[1] - vert_scaled_mid_height;
vert_coord[2] = V_BR[0] + vert_woff + vert_scaled_mid_width;
vert_coord[3] = V_BR[1] - vert_scaled_mid_height;
vert_coord[4] = V_TL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[5] = V_TL[1] - vert_hoff;
vert_coord[6] = V_TR[0] + vert_woff + vert_scaled_mid_width;
vert_coord[7] = V_TR[1] - vert_hoff;
tex_coord[0] = T_BL[0] + tex_woff + tex_mid_width;
tex_coord[1] = T_BL[1] + tex_mid_height;
tex_coord[2] = T_BR[0] + tex_woff + tex_mid_width;
tex_coord[3] = T_BR[1] + tex_mid_height;
tex_coord[4] = T_TL[0] + tex_woff + tex_mid_width;
tex_coord[5] = T_TL[1] + tex_hoff;
tex_coord[6] = T_TR[0] + tex_woff + tex_mid_width;
tex_coord[7] = T_TR[1] + tex_hoff;
dispctx->draw(&draw, userdata, video_width, video_height);
/* bottom-left corner */
vert_coord[0] = V_BL[0];
vert_coord[1] = V_BL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[2] = V_BR[0];
vert_coord[3] = V_BR[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[4] = V_TL[0];
vert_coord[5] = V_TL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[6] = V_TR[0];
vert_coord[7] = V_TR[1] - vert_hoff - vert_scaled_mid_height;
tex_coord[0] = T_BL[0];
tex_coord[1] = T_BL[1] + tex_hoff + tex_mid_height;
tex_coord[2] = T_BR[0];
tex_coord[3] = T_BR[1] + tex_hoff + tex_mid_height;
tex_coord[4] = T_TL[0];
tex_coord[5] = T_TL[1] + tex_hoff + tex_mid_height;
tex_coord[6] = T_TR[0];
tex_coord[7] = T_TR[1] + tex_hoff + tex_mid_height;
dispctx->draw(&draw, userdata, video_width, video_height);
/* bottom-middle section */
vert_coord[0] = V_BL[0] + vert_woff;
vert_coord[1] = V_BL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[2] = V_BR[0] + vert_scaled_mid_width;
vert_coord[3] = V_BR[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[4] = V_TL[0] + vert_woff;
vert_coord[5] = V_TL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[6] = V_TR[0] + vert_scaled_mid_width;
vert_coord[7] = V_TR[1] - vert_hoff - vert_scaled_mid_height;
tex_coord[0] = T_BL[0] + tex_woff;
tex_coord[1] = T_BL[1] + tex_hoff + tex_mid_height;
tex_coord[2] = T_BR[0] + tex_mid_width;
tex_coord[3] = T_BR[1] + tex_hoff + tex_mid_height;
tex_coord[4] = T_TL[0] + tex_woff;
tex_coord[5] = T_TL[1] + tex_hoff + tex_mid_height;
tex_coord[6] = T_TR[0] + tex_mid_width;
tex_coord[7] = T_TR[1] + tex_hoff + tex_mid_height;
dispctx->draw(&draw, userdata, video_width, video_height);
/* bottom-right corner */
vert_coord[0] = V_BL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[1] = V_BL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[2] = V_BR[0] + vert_scaled_mid_width + vert_woff;
vert_coord[3] = V_BR[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[4] = V_TL[0] + vert_woff + vert_scaled_mid_width;
vert_coord[5] = V_TL[1] - vert_hoff - vert_scaled_mid_height;
vert_coord[6] = V_TR[0] + vert_scaled_mid_width + vert_woff;
vert_coord[7] = V_TR[1] - vert_hoff - vert_scaled_mid_height;
tex_coord[0] = T_BL[0] + tex_woff + tex_mid_width;
tex_coord[1] = T_BL[1] + tex_hoff + tex_mid_height;
tex_coord[2] = T_BR[0] + tex_woff + tex_mid_width;
tex_coord[3] = T_BR[1] + tex_hoff + tex_mid_height;
tex_coord[4] = T_TL[0] + tex_woff + tex_mid_width;
tex_coord[5] = T_TL[1] + tex_hoff + tex_mid_height;
tex_coord[6] = T_TR[0] + tex_woff + tex_mid_width;
tex_coord[7] = T_TR[1] + tex_hoff + tex_mid_height;
dispctx->draw(&draw, userdata, video_width, video_height);
}
void gfx_display_rotate_z(gfx_display_t *p_disp,
gfx_display_ctx_rotate_draw_t *draw, void *data)
{
math_matrix_4x4 matrix_rotated, matrix_scaled;
math_matrix_4x4 *b = NULL;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (
!draw ||
!dispctx ||
!dispctx->get_default_mvp ||
dispctx->handles_transform
)
return;
b = (math_matrix_4x4*)dispctx->get_default_mvp(data);
if (!b)
return;
matrix_4x4_rotate_z(matrix_rotated, draw->rotation);
matrix_4x4_multiply(*draw->matrix, matrix_rotated, *b);
if (!draw->scale_enable)
return;
matrix_4x4_scale(matrix_scaled,
draw->scale_x, draw->scale_y, draw->scale_z);
matrix_4x4_multiply(*draw->matrix, matrix_scaled, *draw->matrix);
}
/*
* Draw a hardware cursor on top of the screen for the mouse.
*/
void gfx_display_draw_cursor(
gfx_display_t *p_disp,
void *userdata,
unsigned video_width,
unsigned video_height,
bool cursor_visible,
float *color, float cursor_size, uintptr_t texture,
float x, float y, unsigned width, unsigned height)
{
gfx_display_ctx_draw_t draw;
struct video_coords coords;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
if (!dispctx)
return;
coords.vertices = 4;
coords.vertex = NULL;
coords.tex_coord = NULL;
coords.lut_tex_coord = NULL;
coords.color = (const float*)color;
draw.x = x - (cursor_size / 2);
draw.y = (int)height - y - (cursor_size / 2);
draw.width = cursor_size;
draw.height = cursor_size;
draw.coords = &coords;
draw.matrix_data = NULL;
draw.texture = texture;
draw.prim_type = GFX_DISPLAY_PRIM_TRIANGLESTRIP;
draw.pipeline_id = 0;
if (dispctx->blend_begin)
dispctx->blend_begin(userdata);
if (dispctx->draw)
dispctx->draw(&draw, userdata, video_width, video_height);
if (dispctx->blend_end)
dispctx->blend_end(userdata);
}
/* Setup: Initializes the font associated
* to the menu driver */
font_data_t *gfx_display_font(
gfx_display_t *p_disp,
enum application_special_type type,
float menu_font_size,
bool is_threaded)
{
char fontpath[PATH_MAX_LENGTH];
fontpath[0] = '\0';
fill_pathname_application_special(
fontpath, sizeof(fontpath), type);
return gfx_display_font_file(p_disp, fontpath, menu_font_size, is_threaded);
}
/* Returns the OSK key at a given position */
int gfx_display_osk_ptr_at_pos(void *data, int x, int y,
unsigned width, unsigned height)
{
unsigned i;
int ptr_width = width / 11;
int ptr_height = height / 10;
if (ptr_width >= ptr_height)
ptr_width = ptr_height;
for (i = 0; i < 44; i++)
{
int line_y = (i / 11)*height/10.0;
int ptr_x = width/2.0 - (11*ptr_width)/2.0 + (i % 11) * ptr_width;
int ptr_y = height/2.0 + ptr_height*1.5 + line_y - ptr_height;
if (x > ptr_x && x < ptr_x + ptr_width
&& y > ptr_y && y < ptr_y + ptr_height)
return i;
}
return -1;
}
/* Get the display framebuffer's size dimensions. */
void gfx_display_get_fb_size(unsigned *fb_width,
unsigned *fb_height, size_t *fb_pitch)
{
gfx_display_t *p_disp = disp_get_ptr();
*fb_width = p_disp->framebuf_width;
*fb_height = p_disp->framebuf_height;
*fb_pitch = p_disp->framebuf_pitch;
}
/* Set the display framebuffer's width. */
void gfx_display_set_width(unsigned width)
{
gfx_display_t *p_disp = disp_get_ptr();
p_disp->framebuf_width = width;
}
/* Set the display framebuffer's height. */
void gfx_display_set_height(unsigned height)
{
gfx_display_t *p_disp = disp_get_ptr();
p_disp->framebuf_height = height;
}
void gfx_display_set_framebuffer_pitch(size_t pitch)
{
gfx_display_t *p_disp = disp_get_ptr();
p_disp->framebuf_pitch = pitch;
}
void gfx_display_set_msg_force(bool state)
{
gfx_display_t *p_disp = disp_get_ptr();
p_disp->msg_force = state;
}
void gfx_display_draw_keyboard(
gfx_display_t *p_disp,
void *userdata,
unsigned video_width,
unsigned video_height,
uintptr_t hover_texture,
const font_data_t *font,
char *grid[], unsigned id,
unsigned text_color)
{
unsigned i;
int ptr_width, ptr_height;
gfx_display_ctx_driver_t *dispctx = p_disp->dispctx;
static float white[16] = {
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
1.00, 1.00, 1.00, 1.00,
};
static float osk_dark[16] = {
0.00, 0.00, 0.00, 0.85,
0.00, 0.00, 0.00, 0.85,
0.00, 0.00, 0.00, 0.85,
0.00, 0.00, 0.00, 0.85,
};
struct video_coords coords;
gfx_display_ctx_draw_t draw;
math_matrix_4x4 mymat;
gfx_display_ctx_rotate_draw_t rotate_draw;
rotate_draw.matrix = &mymat;
rotate_draw.rotation = 0.0;
rotate_draw.scale_x = 1.0;
rotate_draw.scale_y = 1.0;
rotate_draw.scale_z = 1;
rotate_draw.scale_enable = true;
coords.vertices = 4;
coords.vertex = NULL;
coords.tex_coord = NULL;
coords.lut_tex_coord = NULL;
coords.color = (const float*)&white[0];
gfx_display_draw_quad(
p_disp,
userdata,
video_width,
video_height,
0,
video_height / 2.0,
video_width,
video_height / 2.0,
video_width,
video_height,
&osk_dark[0]);
ptr_width = video_width / 11;
ptr_height = video_height / 10;
if (ptr_width >= ptr_height)
ptr_width = ptr_height;
gfx_display_rotate_z(p_disp, &rotate_draw, userdata);
draw.coords = &coords;
draw.matrix_data = &mymat;
for (i = 0; i < 44; i++)
{
int line_y = (i / 11) * video_height / 10.0;
unsigned color = 0xffffffff;
if (i == id)
{
if (dispctx && dispctx->blend_begin)
dispctx->blend_begin(userdata);
gfx_display_draw_texture(
p_disp,
dispctx,
userdata,
video_width,
video_height,
video_width / 2.0 - (11 * ptr_width) / 2.0 + (i % 11)
* ptr_width,
video_height / 2.0 + ptr_height * 1.5 + line_y,
ptr_width, ptr_height,
video_width,
video_height,
&white[0],
hover_texture,
&draw
);
if (dispctx && dispctx->blend_end)
dispctx->blend_end(userdata);
color = text_color;
}
gfx_display_draw_text(font, grid[i],
video_width/2.0 - (11*ptr_width)/2.0 + (i % 11)
* ptr_width + ptr_width/2.0,
video_height / 2.0 + ptr_height + line_y + font->size / 3,
video_width,
video_height,
color,
TEXT_ALIGN_CENTER,
1.0f,
false, 0, false);
}
}
/* NOTE: Reads image from file */
bool gfx_display_reset_textures_list(
const char *texture_path, const char *iconpath,
uintptr_t *item, enum texture_filter_type filter_type,
unsigned *width, unsigned *height)
{
char texpath[PATH_MAX_LENGTH];
struct texture_image ti;
texpath[0] = '\0';
ti.width = 0;
ti.height = 0;
ti.pixels = NULL;
ti.supports_rgba = video_driver_supports_rgba();
if (string_is_empty(texture_path))
return false;
fill_pathname_join(texpath, iconpath, texture_path, sizeof(texpath));
if (!image_texture_load(&ti, texpath))
return false;
if (width)
*width = ti.width;
if (height)
*height = ti.height;
video_driver_texture_load(&ti,
filter_type, item);
image_texture_free(&ti);
return true;
}
/* Teardown; deinitializes and frees all
* fonts associated to the display driver */
void gfx_display_font_free(font_data_t *font)
{
font_driver_free(font);
}
void gfx_display_init_white_texture(uintptr_t white_texture)
{
struct texture_image ti;
static const uint8_t white_data[] = { 0xff, 0xff, 0xff, 0xff };
ti.width = 1;
ti.height = 1;
ti.pixels = (uint32_t*)&white_data;
video_driver_texture_load(&ti,
TEXTURE_FILTER_NEAREST, &gfx_display_white_texture);
}
void gfx_display_free(void)
{
gfx_display_t *p_disp = disp_get_ptr();
video_coord_array_free(&p_disp->dispca);
p_disp->msg_force = false;
p_disp->header_height = 0;
p_disp->framebuf_width = 0;
p_disp->framebuf_height = 0;
p_disp->framebuf_pitch = 0;
p_disp->has_windowed = false;
p_disp->dispctx = NULL;
}
void gfx_display_init(void)
{
gfx_display_t *p_disp = disp_get_ptr();
video_coord_array_t *p_dispca = &p_disp->dispca;
p_disp->has_windowed = video_driver_has_windowed();
p_dispca->allocated = 0;
}
bool gfx_display_driver_exists(const char *s)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(gfx_display_ctx_drivers); i++)
{
if (string_is_equal(s, gfx_display_ctx_drivers[i]->ident))
return true;
}
return false;
}
bool gfx_display_init_first_driver(gfx_display_t *p_disp,
bool video_is_threaded)
{
unsigned i;
for (i = 0; gfx_display_ctx_drivers[i]; i++)
{
if (!gfx_display_check_compatibility(
gfx_display_ctx_drivers[i]->type,
video_is_threaded))
continue;
RARCH_LOG("[Display]: Found display driver: \"%s\".\n",
gfx_display_ctx_drivers[i]->ident);
p_disp->dispctx = gfx_display_ctx_drivers[i];
return true;
}
return false;
}
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