sandbox: sdl: Move to use SDL2

Sandbox currently uses SDL1.2. SDL2 has been around for quite a while and
is widely supported. It has a number of useful features. It seems
appropriate to move sandbox over.

Update the code to use SDL2 instead of SDL1.2.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2020-02-03 07:36:12 -07:00
parent af800722eb
commit 96d0cd4604
4 changed files with 149 additions and 118 deletions

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@ -19,7 +19,7 @@ addons:
- sparse
- bc
- build-essential
- libsdl1.2-dev
- libsdl2-dev
- python
- python-pyelftools
- python3-virtualenv

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@ -5,7 +5,7 @@ PLATFORM_CPPFLAGS += -D__SANDBOX__ -U_FORTIFY_SOURCE
PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM
PLATFORM_CPPFLAGS += -fPIC
PLATFORM_LIBS += -lrt
SDL_CONFIG ?= sdl-config
SDL_CONFIG ?= sdl2-config
# Define this to avoid linking with SDL, which requires SDL libraries
# This can solve 'sdl-config: Command not found' errors

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@ -7,7 +7,7 @@
#include <unistd.h>
#include <stdbool.h>
#include <linux/input.h>
#include <SDL.h>
#include <SDL2/SDL.h>
#include <asm/state.h>
/**
@ -28,7 +28,6 @@ struct buf_info {
/**
* struct sdl_info - Information about our use of the SDL library
*
* @screen: Surface used to draw on the screen
* @width: Width of simulated LCD display
* @height: Height of simulated LCD display
* @depth: Depth of the display in bits per pixel (16 or 32)
@ -41,9 +40,10 @@ struct buf_info {
* are setting up the next
* @running: true if audio is running
* @stopping: true if audio will stop once it runs out of data
* @texture: SDL texture to use for U-Boot display contents
* @renderer: SDL renderer to use
*/
static struct sdl_info {
SDL_Surface *screen;
int width;
int height;
int depth;
@ -55,6 +55,8 @@ static struct sdl_info {
struct buf_info buf[2];
bool running;
bool stopping;
SDL_Texture *texture;
SDL_Renderer *renderer;
} sdl;
static void sandbox_sdl_poll_events(void)
@ -106,13 +108,41 @@ int sandbox_sdl_init_display(int width, int height, int log2_bpp)
printf("Unable to initialise SDL LCD: %s\n", SDL_GetError());
return -EPERM;
}
SDL_WM_SetCaption("U-Boot", "U-Boot");
sdl.width = width;
sdl.height = height;
sdl.depth = 1 << log2_bpp;
sdl.pitch = sdl.width * sdl.depth / 8;
sdl.screen = SDL_SetVideoMode(width, height, 0, 0);
SDL_Window *screen = SDL_CreateWindow("U-Boot", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
sdl.width, sdl.height, 0);
if (!screen) {
printf("Unable to initialise SDL screen: %s\n",
SDL_GetError());
return -EIO;
}
if (log2_bpp != 4 && log2_bpp != 5) {
printf("U-Boot SDL does not support depth %d\n", log2_bpp);
return -EINVAL;
}
sdl.renderer = SDL_CreateRenderer(screen, -1,
SDL_RENDERER_ACCELERATED |
SDL_RENDERER_PRESENTVSYNC);
if (!sdl.renderer) {
printf("Unable to initialise SDL renderer: %s\n",
SDL_GetError());
return -EIO;
}
sdl.texture = SDL_CreateTexture(sdl.renderer, log2_bpp == 4 ?
SDL_PIXELFORMAT_RGB565 :
SDL_PIXELFORMAT_RGB888,
SDL_TEXTUREACCESS_STREAMING,
width, height);
if (!sdl.texture) {
printf("Unable to initialise SDL texture: %s\n",
SDL_GetError());
return -EBADF;
}
sandbox_sdl_poll_events();
return 0;
@ -120,136 +150,137 @@ int sandbox_sdl_init_display(int width, int height, int log2_bpp)
int sandbox_sdl_sync(void *lcd_base)
{
SDL_Surface *frame;
frame = SDL_CreateRGBSurfaceFrom(lcd_base, sdl.width, sdl.height,
sdl.depth, sdl.pitch,
0x1f << 11, 0x3f << 5, 0x1f << 0, 0);
SDL_BlitSurface(frame, NULL, sdl.screen, NULL);
SDL_FreeSurface(frame);
SDL_UpdateRect(sdl.screen, 0, 0, 0, 0);
SDL_UpdateTexture(sdl.texture, NULL, lcd_base, sdl.pitch);
SDL_RenderCopy(sdl.renderer, sdl.texture, NULL, NULL);
SDL_RenderPresent(sdl.renderer);
sandbox_sdl_poll_events();
return 0;
}
#define NONE (-1)
#define NUM_SDL_CODES (SDLK_UNDO + 1)
static const unsigned short sdl_to_keycode[SDL_NUM_SCANCODES] = {
[SDL_SCANCODE_A] = KEY_A,
[SDL_SCANCODE_B] = KEY_B,
[SDL_SCANCODE_C] = KEY_C,
[SDL_SCANCODE_D] = KEY_D,
[SDL_SCANCODE_E] = KEY_E,
[SDL_SCANCODE_F] = KEY_F,
[SDL_SCANCODE_G] = KEY_G,
[SDL_SCANCODE_H] = KEY_H,
[SDL_SCANCODE_I] = KEY_I,
[SDL_SCANCODE_J] = KEY_J,
[SDL_SCANCODE_K] = KEY_K,
[SDL_SCANCODE_L] = KEY_L,
[SDL_SCANCODE_M] = KEY_M,
[SDL_SCANCODE_N] = KEY_N,
[SDL_SCANCODE_O] = KEY_O,
[SDL_SCANCODE_P] = KEY_P,
[SDL_SCANCODE_Q] = KEY_Q,
[SDL_SCANCODE_R] = KEY_R,
[SDL_SCANCODE_S] = KEY_S,
[SDL_SCANCODE_T] = KEY_T,
[SDL_SCANCODE_U] = KEY_U,
[SDL_SCANCODE_V] = KEY_V,
[SDL_SCANCODE_W] = KEY_W,
[SDL_SCANCODE_X] = KEY_X,
[SDL_SCANCODE_Y] = KEY_Y,
[SDL_SCANCODE_Z] = KEY_Z,
static int16_t sdl_to_keycode[NUM_SDL_CODES] = {
/* 0 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, KEY_BACKSPACE, KEY_TAB,
NONE, NONE, NONE, KEY_ENTER, NONE,
NONE, NONE, NONE, NONE, KEY_POWER, /* use PAUSE as POWER */
[SDL_SCANCODE_1] = KEY_1,
[SDL_SCANCODE_2] = KEY_2,
[SDL_SCANCODE_3] = KEY_3,
[SDL_SCANCODE_4] = KEY_4,
[SDL_SCANCODE_5] = KEY_5,
[SDL_SCANCODE_6] = KEY_6,
[SDL_SCANCODE_7] = KEY_7,
[SDL_SCANCODE_8] = KEY_8,
[SDL_SCANCODE_9] = KEY_9,
[SDL_SCANCODE_0] = KEY_0,
/* 20 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, KEY_ESC, NONE, NONE,
NONE, NONE, KEY_SPACE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
[SDL_SCANCODE_RETURN] = KEY_ENTER,
[SDL_SCANCODE_ESCAPE] = KEY_ESC,
[SDL_SCANCODE_BACKSPACE] = KEY_BACKSPACE,
[SDL_SCANCODE_TAB] = KEY_TAB,
[SDL_SCANCODE_SPACE] = KEY_SPACE,
/* 40 */
NONE, NONE, NONE, NONE, KEY_COMMA,
KEY_MINUS, KEY_DOT, KEY_SLASH, KEY_0, KEY_1,
KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
KEY_7, KEY_8, KEY_9, NONE, KEY_SEMICOLON,
[SDL_SCANCODE_MINUS] = KEY_MINUS,
[SDL_SCANCODE_EQUALS] = KEY_EQUAL,
[SDL_SCANCODE_BACKSLASH] = KEY_BACKSLASH,
[SDL_SCANCODE_SEMICOLON] = KEY_SEMICOLON,
[SDL_SCANCODE_APOSTROPHE] = KEY_APOSTROPHE,
[SDL_SCANCODE_GRAVE] = KEY_GRAVE,
[SDL_SCANCODE_COMMA] = KEY_COMMA,
[SDL_SCANCODE_PERIOD] = KEY_DOT,
[SDL_SCANCODE_SLASH] = KEY_SLASH,
/* 60 */
NONE, KEY_EQUAL, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
[SDL_SCANCODE_CAPSLOCK] = KEY_CAPSLOCK,
/* 80 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, KEY_BACKSLASH, NONE, NONE,
NONE, KEY_GRAVE, KEY_A, KEY_B, KEY_C,
[SDL_SCANCODE_F1] = KEY_F1,
[SDL_SCANCODE_F2] = KEY_F2,
[SDL_SCANCODE_F3] = KEY_F3,
[SDL_SCANCODE_F4] = KEY_F4,
[SDL_SCANCODE_F5] = KEY_F5,
[SDL_SCANCODE_F6] = KEY_F6,
[SDL_SCANCODE_F7] = KEY_F7,
[SDL_SCANCODE_F8] = KEY_F8,
[SDL_SCANCODE_F9] = KEY_F9,
[SDL_SCANCODE_F10] = KEY_F10,
[SDL_SCANCODE_F11] = KEY_F11,
[SDL_SCANCODE_F12] = KEY_F12,
/* 100 */
KEY_D, KEY_E, KEY_F, KEY_G, KEY_H,
KEY_I, KEY_J, KEY_K, KEY_L, KEY_M,
KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R,
KEY_S, KEY_T, KEY_U, KEY_V, KEY_W,
[SDL_SCANCODE_PRINTSCREEN] = KEY_PRINT,
[SDL_SCANCODE_SCROLLLOCK] = KEY_SCROLLLOCK,
[SDL_SCANCODE_PAUSE] = KEY_PAUSE,
[SDL_SCANCODE_INSERT] = KEY_INSERT,
[SDL_SCANCODE_HOME] = KEY_HOME,
[SDL_SCANCODE_PAGEUP] = KEY_PAGEUP,
[SDL_SCANCODE_DELETE] = KEY_DELETE,
[SDL_SCANCODE_END] = KEY_END,
[SDL_SCANCODE_PAGEDOWN] = KEY_PAGEDOWN,
[SDL_SCANCODE_RIGHT] = KEY_RIGHT,
[SDL_SCANCODE_LEFT] = KEY_LEFT,
[SDL_SCANCODE_DOWN] = KEY_DOWN,
[SDL_SCANCODE_UP] = KEY_UP,
/* 120 */
KEY_X, KEY_Y, KEY_Z, NONE, NONE,
NONE, NONE, KEY_DELETE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
[SDL_SCANCODE_NUMLOCKCLEAR] = KEY_NUMLOCK,
[SDL_SCANCODE_KP_DIVIDE] = KEY_KPSLASH,
[SDL_SCANCODE_KP_MULTIPLY] = KEY_KPASTERISK,
[SDL_SCANCODE_KP_MINUS] = KEY_KPMINUS,
[SDL_SCANCODE_KP_PLUS] = KEY_KPPLUS,
[SDL_SCANCODE_KP_ENTER] = KEY_KPENTER,
[SDL_SCANCODE_KP_1] = KEY_KP1,
[SDL_SCANCODE_KP_2] = KEY_KP2,
[SDL_SCANCODE_KP_3] = KEY_KP3,
[SDL_SCANCODE_KP_4] = KEY_KP4,
[SDL_SCANCODE_KP_5] = KEY_KP5,
[SDL_SCANCODE_KP_6] = KEY_KP6,
[SDL_SCANCODE_KP_7] = KEY_KP7,
[SDL_SCANCODE_KP_8] = KEY_KP8,
[SDL_SCANCODE_KP_9] = KEY_KP9,
[SDL_SCANCODE_KP_0] = KEY_KP0,
[SDL_SCANCODE_KP_PERIOD] = KEY_KPDOT,
/* 140 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
[SDL_SCANCODE_KP_EQUALS] = KEY_KPEQUAL,
[SDL_SCANCODE_KP_COMMA] = KEY_KPCOMMA,
/* 160 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
/* 180 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
/* 200 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
/* 220 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
/* 240 */
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, NONE, NONE, NONE, NONE,
NONE, KEY_KP0, KEY_KP1, KEY_KP2, KEY_KP3,
/* 260 */
KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8,
KEY_KP9, KEY_KPDOT, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS,
KEY_KPPLUS, KEY_KPENTER, KEY_KPEQUAL, KEY_UP, KEY_DOWN,
KEY_RIGHT, KEY_LEFT, KEY_INSERT, KEY_HOME, KEY_END,
/* 280 */
KEY_PAGEUP, KEY_PAGEDOWN, KEY_F1, KEY_F2, KEY_F3,
KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8,
KEY_F9, KEY_F10, KEY_F11, KEY_F12, NONE,
NONE, NONE, NONE, NONE, NONE,
/* 300 */
KEY_NUMLOCK, KEY_CAPSLOCK, KEY_SCROLLLOCK, KEY_RIGHTSHIFT,
KEY_LEFTSHIFT,
KEY_RIGHTCTRL, KEY_LEFTCTRL, KEY_RIGHTALT, KEY_LEFTALT, KEY_RIGHTMETA,
KEY_LEFTMETA, NONE, KEY_FN, NONE, KEY_COMPOSE,
NONE, KEY_PRINT, KEY_SYSRQ, KEY_PAUSE, NONE,
/* 320 */
NONE, NONE, NONE,
[SDL_SCANCODE_SYSREQ] = KEY_SYSRQ,
};
int sandbox_sdl_scan_keys(int key[], int max_keys)
{
Uint8 *keystate;
const Uint8 *keystate;
int num_keys;
int i, count;
sandbox_sdl_poll_events();
keystate = SDL_GetKeyState(NULL);
for (i = count = 0; i < NUM_SDL_CODES; i++) {
if (count >= max_keys)
break;
else if (keystate[i])
key[count++] = sdl_to_keycode[i];
keystate = SDL_GetKeyboardState(&num_keys);
for (i = count = 0; i < num_keys; i++) {
if (count < max_keys && keystate[i]) {
int keycode = sdl_to_keycode[i];
if (keycode)
key[count++] = keycode;
}
}
return count;

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@ -43,7 +43,7 @@ To run sandbox U-Boot use something like::
./u-boot
Note: If you get errors about 'sdl-config: Command not found' you may need to
install libsdl1.2-dev or similar to get SDL support. Alternatively you can
install libsdl2.0-dev or similar to get SDL support. Alternatively you can
build sandbox without SDL (i.e. no display/keyboard support) by removing
the CONFIG_SANDBOX_SDL line in include/configs/sandbox.h or using::