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Added joystick and gamepad element display in testgamepad

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This commit is contained in:
Sam Lantinga
2023-07-10 17:06:42 -07:00
parent 4a53dc5b8d
commit d44ada59fb
6 changed files with 1348 additions and 307 deletions
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426
test/gamepadutils.c
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@@ -10,13 +10,16 @@
freely.
*/
#include <SDL3/SDL.h>
#include <SDL3/SDL_test_font.h>
#include "gamepadutils.h"
#include "gamepad_front.h"
#include "gamepad_back.h"
#include "gamepad_touchpad.h"
#include "gamepad_button.h"
#include "gamepad_button_small.h"
#include "gamepad_axis.h"
#include "gamepad_axis_arrow.h"
/* This is indexed by SDL_GamepadButton. */
static const struct
@@ -110,26 +113,6 @@ static SDL_Texture *CreateTexture(SDL_Renderer *renderer, unsigned char *data, u
if (src) {
surface = SDL_LoadBMP_RW(src, SDL_TRUE);
if (surface) {
if (surface->format->palette) {
SDL_SetSurfaceColorKey(surface, SDL_TRUE, *(Uint8 *)surface->pixels);
} else {
switch (surface->format->BitsPerPixel) {
case 15:
SDL_SetSurfaceColorKey(surface, SDL_TRUE,
(*(Uint16 *)surface->pixels) & 0x00007FFF);
break;
case 16:
SDL_SetSurfaceColorKey(surface, SDL_TRUE, *(Uint16 *)surface->pixels);
break;
case 24:
SDL_SetSurfaceColorKey(surface, SDL_TRUE,
(*(Uint32 *)surface->pixels) & 0x00FFFFFF);
break;
case 32:
SDL_SetSurfaceColorKey(surface, SDL_TRUE, *(Uint32 *)surface->pixels);
break;
}
}
texture = SDL_CreateTextureFromSurface(renderer, surface);
SDL_DestroySurface(surface);
}
@@ -490,3 +473,406 @@ void DestroyGamepadImage(GamepadImage *ctx)
SDL_free(ctx);
}
}
static const char *gamepad_button_names[] = {
"A",
"B",
"X",
"Y",
"Back",
"Guide",
"Start",
"Left Stick",
"Right Stick",
"Left Shoulder",
"Right Shoulder",
"DPAD Up",
"DPAD Down",
"DPAD Left",
"DPAD Right",
"Misc1",
"Paddle1",
"Paddle2",
"Paddle3",
"Paddle4",
"Touchpad",
};
SDL_COMPILE_TIME_ASSERT(gamepad_button_names, SDL_arraysize(gamepad_button_names) == SDL_GAMEPAD_BUTTON_MAX);
static const char *gamepad_axis_names[] = {
"LeftX",
"RightX",
"RightX",
"RightY",
"Left Trigger",
"Right Trigger",
};
SDL_COMPILE_TIME_ASSERT(gamepad_axis_names, SDL_arraysize(gamepad_axis_names) == SDL_GAMEPAD_AXIS_MAX);
struct GamepadDisplay
{
SDL_Renderer *renderer;
SDL_Texture *button_texture;
SDL_Texture *arrow_texture;
int button_width;
int button_height;
int arrow_width;
int arrow_height;
SDL_Rect area;
};
GamepadDisplay *CreateGamepadDisplay(SDL_Renderer *renderer)
{
GamepadDisplay *ctx = SDL_calloc(1, sizeof(*ctx));
if (ctx) {
ctx->renderer = renderer;
ctx->button_texture = CreateTexture(renderer, gamepad_button_small_bmp, gamepad_button_small_bmp_len);
SDL_QueryTexture(ctx->button_texture, NULL, NULL, &ctx->button_width, &ctx->button_height);
ctx->arrow_texture = CreateTexture(renderer, gamepad_axis_arrow_bmp, gamepad_axis_arrow_bmp_len);
SDL_QueryTexture(ctx->arrow_texture, NULL, NULL, &ctx->arrow_width, &ctx->arrow_height);
}
return ctx;
}
void SetGamepadDisplayArea(GamepadDisplay *ctx, int x, int y, int w, int h)
{
if (!ctx) {
return;
}
ctx->area.x = x;
ctx->area.y = y;
ctx->area.w = w;
ctx->area.h = h;
}
void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
{
float x, y;
int i;
char text[32];
const float margin = 8.0f;
const float center = ctx->area.w / 2.0f;
const float arrow_extent = 48.0f;
SDL_FRect dst, rect;
Uint8 r, g, b, a;
SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
x = ctx->area.x + margin;
y = ctx->area.y + margin;
for (i = 0; i < SDL_GAMEPAD_BUTTON_MAX; ++i) {
if (SDL_GamepadHasButton(gamepad, (SDL_GamepadButton)i)) {
SDL_snprintf(text, sizeof(text), "%s:", gamepad_button_names[i]);
SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
if (SDL_GetGamepadButton(gamepad, (SDL_GamepadButton)i)) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.x = x + center + 2.0f;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
dst.w = (float)ctx->button_width;
dst.h = (float)ctx->button_height;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
y += ctx->button_height + 2.0f;
}
}
for (i = 0; i < SDL_GAMEPAD_AXIS_MAX; ++i) {
if (SDL_GamepadHasAxis(gamepad, (SDL_GamepadAxis)i)) {
SDL_bool has_negative = (i != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && i != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
Sint16 value = SDL_GetGamepadAxis(gamepad, (SDL_GamepadAxis)i);
SDL_snprintf(text, sizeof(text), "%s:", gamepad_axis_names[i]);
SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
dst.x = x + center + 2.0f;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
dst.w = (float)ctx->arrow_width;
dst.h = (float)ctx->arrow_height;
if (has_negative) {
if (value == SDL_MIN_SINT16) {
SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
}
SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
}
dst.x += (float)ctx->arrow_width;
SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
rect.x = dst.x + arrow_extent - 2.0f;
rect.y = dst.y;
rect.w = 4.0f;
rect.h = (float)ctx->arrow_height;
SDL_RenderFillRect(ctx->renderer, &rect);
SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
if (value < 0) {
SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
rect.x = dst.x + arrow_extent - rect.w;
rect.y = dst.y + ctx->arrow_height * 0.25f;
rect.h = ctx->arrow_height / 2.0f;
SDL_RenderFillRect(ctx->renderer, &rect);
}
dst.x += arrow_extent;
if (value > 0) {
SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
rect.x = dst.x;
rect.y = dst.y + ctx->arrow_height * 0.25f;
rect.h = ctx->arrow_height / 2.0f;
SDL_RenderFillRect(ctx->renderer, &rect);
}
dst.x += arrow_extent;
if (value == SDL_MAX_SINT16) {
SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
}
SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
y += ctx->button_height + 2;
}
}
}
void DestroyGamepadDisplay(GamepadDisplay *ctx)
{
SDL_free(ctx);
}
struct JoystickDisplay
{
SDL_Renderer *renderer;
SDL_Texture *button_texture;
SDL_Texture *arrow_texture;
int button_width;
int button_height;
int arrow_width;
int arrow_height;
SDL_Rect area;
};
JoystickDisplay *CreateJoystickDisplay(SDL_Renderer *renderer)
{
JoystickDisplay *ctx = SDL_calloc(1, sizeof(*ctx));
if (ctx) {
ctx->renderer = renderer;
ctx->button_texture = CreateTexture(renderer, gamepad_button_small_bmp, gamepad_button_small_bmp_len);
SDL_QueryTexture(ctx->button_texture, NULL, NULL, &ctx->button_width, &ctx->button_height);
ctx->arrow_texture = CreateTexture(renderer, gamepad_axis_arrow_bmp, gamepad_axis_arrow_bmp_len);
SDL_QueryTexture(ctx->arrow_texture, NULL, NULL, &ctx->arrow_width, &ctx->arrow_height);
}
return ctx;
}
void SetJoystickDisplayArea(JoystickDisplay *ctx, int x, int y, int w, int h)
{
if (!ctx) {
return;
}
ctx->area.x = x;
ctx->area.y = y;
ctx->area.w = w;
ctx->area.h = h;
}
void RenderJoystickDisplay(JoystickDisplay *ctx, SDL_Joystick *joystick)
{
float x, y;
int i;
int nbuttons = SDL_GetNumJoystickButtons(joystick);
int naxes = SDL_GetNumJoystickAxes(joystick);
int nhats = SDL_GetNumJoystickHats(joystick);
char text[32];
const float margin = 8.0f;
const float center = 80.0f;
const float arrow_extent = 48.0f;
SDL_FRect dst, rect;
Uint8 r, g, b, a;
SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
x = (float)ctx->area.x + margin;
y = (float)ctx->area.y + margin;
if (nbuttons > 0) {
SDLTest_DrawString(ctx->renderer, x, y, "BUTTONS");
y += FONT_LINE_HEIGHT + 2;
for (i = 0; i < nbuttons; ++i) {
SDL_snprintf(text, sizeof(text), "%2.d:", i);
SDLTest_DrawString(ctx->renderer, x, y, text);
if (SDL_GetJoystickButton(joystick, (Uint8)i)) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
dst.w = (float)ctx->button_width;
dst.h = (float)ctx->button_height;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
y += ctx->button_height + 2;
}
}
x = (float)ctx->area.x + margin + center + margin;
y = (float)ctx->area.y + margin;
if (naxes > 0) {
SDLTest_DrawString(ctx->renderer, x, y, "AXES");
y += FONT_LINE_HEIGHT + 2;
for (i = 0; i < naxes; ++i) {
Sint16 value = SDL_GetJoystickAxis(joystick, i);
SDL_snprintf(text, sizeof(text), "%d:", i);
SDLTest_DrawString(ctx->renderer, x, y, text);
dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2.0f;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
dst.w = (float)ctx->arrow_width;
dst.h = (float)ctx->arrow_height;
if (value == SDL_MIN_SINT16) {
SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
}
SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
dst.x += (float)ctx->arrow_width;
SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
rect.x = dst.x + arrow_extent - 2.0f;
rect.y = dst.y;
rect.w = 4.0f;
rect.h = (float)ctx->arrow_height;
SDL_RenderFillRect(ctx->renderer, &rect);
SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
if (value < 0) {
SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
rect.x = dst.x + arrow_extent - rect.w;
rect.y = dst.y + ctx->arrow_height * 0.25f;
rect.h = ctx->arrow_height / 2.0f;
SDL_RenderFillRect(ctx->renderer, &rect);
}
dst.x += arrow_extent;
if (value > 0) {
SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
rect.x = dst.x;
rect.y = dst.y + ctx->arrow_height * 0.25f;
rect.h = ctx->arrow_height / 2.0f;
SDL_RenderFillRect(ctx->renderer, &rect);
}
dst.x += arrow_extent;
if (value == SDL_MAX_SINT16) {
SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
}
SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
y += ctx->button_height + 2;
}
}
y += FONT_LINE_HEIGHT + 2;
if (nhats > 0) {
SDLTest_DrawString(ctx->renderer, x, y, "HATS");
y += FONT_LINE_HEIGHT + 2 + 1.5f * ctx->button_height - FONT_CHARACTER_SIZE / 2;
for (i = 0; i < nhats; ++i) {
Uint8 value = SDL_GetJoystickHat(joystick, i);
SDL_snprintf(text, sizeof(text), "%d:", i);
SDLTest_DrawString(ctx->renderer, x, y, text);
if (value & SDL_HAT_LEFT) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
dst.w = (float)ctx->button_width;
dst.h = (float)ctx->button_height;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
if (value & SDL_HAT_UP) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.x += (float)ctx->button_width;
dst.y -= (float)ctx->button_height;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
if (value & SDL_HAT_DOWN) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.y += (float)ctx->button_height * 2;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
if (value & SDL_HAT_RIGHT) {
SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
} else {
SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
}
dst.x += (float)ctx->button_width;
dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
y += 3 * ctx->button_height + 2;
}
}
}
void DestroyJoystickDisplay(JoystickDisplay *ctx)
{
SDL_free(ctx);
}