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Add simple display of touch joystick azimuth

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This commit is contained in:
Aaron Culliney 2016-01-03 12:08:47 -08:00
parent 29282dcac6
commit c2014e2cde
9 changed files with 298 additions and 11 deletions
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1
Android/assets/shaders/SolidColor.fsh Symbolic link
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@ -0,0 +1 @@
../../../src/video/SolidColor.fsh

1
Android/assets/shaders/SolidColor.vsh Symbolic link
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@ -0,0 +1 @@
../../../src/video/SolidColor.vsh

5
Android/jni/jniprefs.c
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@ -110,6 +110,11 @@ void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetTouchJoystickVisibili
joydriver_setShowControls(visibility);
}
void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetTouchJoystickAzimuthVisibility(JNIEnv *env, jclass cls, jboolean visibility) {
LOG("visibility: %d", visibility);
joydriver_setShowAzimuth(visibility);
}
jint Java_org_deadc0de_apple2ix_Apple2Preferences_nativeGetCurrentTouchDevice(JNIEnv *env, jclass cls) {
LOG("%s", "");
if (joydriver_ownsScreen()) {

1
src/joystick.c
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@ -323,6 +323,7 @@ void (*joydriver_beginCalibration)(void) = NULL;
void (*joydriver_endCalibration)(void) = NULL;
bool (*joydriver_isCalibrating)(void) = NULL;
void (*joydriver_setShowControls)(bool showControls) = NULL;
void (*joydriver_setShowAzimuth)(bool showAzimuth) = NULL;
void (*joydriver_setKeyRepeatThreshold)(float repeatThresholdSecs) = NULL;
#endif

3
src/joystick.h
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@ -144,6 +144,9 @@ extern bool (*joydriver_isCalibrating)(void);
// set controls visibility
extern void (*joydriver_setShowControls)(bool showControls);
// set azimuth visibility
extern void (*joydriver_setShowAzimuth)(bool showAzimuth);
// set key repeat threshold (keypad joystick)
extern void (*joydriver_setKeyRepeatThreshold)(float repeatThresholdSecs);

25
src/video/SolidColor.fsh Normal file
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@ -0,0 +1,25 @@
#ifdef GL_ES
precision highp float;
#endif
// Declare inputs and outputs
// gl_FragColor : Implicitly declare in fragments shaders less than 1.40.
// Output color of our fragment.
// fragColor : Output color of our fragment. Basically the same as gl_FragColor,
// but we must explicitly declared this in shaders version 1.40 and
// above.
#if __VERSION__ >= 140
out vec4 fragColor;
#endif
#if __VERSION__ >= 140
#define OUTPUT_RED fragColor = vec4(1.0, 0.0, 0.0, 1.0)
#else
#define OUTPUT_RED gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0)
#endif
void main(void)
{
OUTPUT_RED;
}

25
src/video/SolidColor.vsh Normal file
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@ -0,0 +1,25 @@
#ifdef GL_ES
precision highp float;
#endif
// Declare our modelViewProjection matrix that we'll compute
// outside the shader and set each frame
uniform mat4 modelViewProjectionMatrix;
// Declare inputs and outputs
// inPosition : Position attributes from the VAO/VBOs
// gl_Position : implicitly declared in all vertex shaders. Clip space position
// passed to rasterizer used to build the triangles
#if __VERSION__ >= 140
in vec4 inPosition;
#else
attribute vec4 inPosition;
#endif
void main(void)
{
// Transform the vertex by the model view projection matrix so
// the polygon shows up in the right place
gl_Position = modelViewProjectionMatrix * inPosition;
}

240
src/video/gltouchjoy.c
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@ -30,13 +30,13 @@
#define BUTTON_FB_WIDTH (BUTTON_TEMPLATE_COLS * FONT80_WIDTH_PIXELS)
#define BUTTON_FB_HEIGHT (BUTTON_TEMPLATE_ROWS * FONT_HEIGHT_PIXELS)
#define AXIS_OBJ_W 0.3
#define AXIS_OBJ_H 0.4
#define AXIS_OBJ_W 0.15
#define AXIS_OBJ_H 0.2
#define AXIS_OBJ_HALF_W (AXIS_OBJ_W/2.f)
#define AXIS_OBJ_HALF_H (AXIS_OBJ_H/2.f)
#define BUTTON_OBJ_W 0.15
#define BUTTON_OBJ_H 0.2
#define BUTTON_OBJ_W 0.075
#define BUTTON_OBJ_H 0.1
#define BUTTON_OBJ_HALF_W (BUTTON_OBJ_W/2.f)
#define BUTTON_OBJ_HALF_H (BUTTON_OBJ_H/2.f)
@ -72,6 +72,162 @@ static struct {
// TODO FIXME : support 2-players!
} touchport = { 0 };
#define RB_CLASS(CLS, ...) \
MODEL_CLASS(CLS, \
GLuint vertShader; \
GLuint fragShader; \
GLuint program; \
GLint uniformMVPIdx;);
RB_CLASS(GLModelRBJoystick);
// ----------------------------------------------------------------------------
// joystick azimuth model
static void _rb_destroy_model(GLModel *parent) {
GLModelRBJoystick *azimuthJoystick = (GLModelRBJoystick *)parent->custom;
if (!azimuthJoystick) {
return;
}
// detach and delete the RB shaders
// 2015/11/06 NOTE : Tegra 2 for mobile has a bug whereby you cannot detach/delete shaders immediately after
// creating the program. So we delete them during the shutdown sequence instead.
// https://code.google.com/p/android/issues/detail?id=61832
if (azimuthJoystick->program != UNINITIALIZED_GL) {
glDetachShader(azimuthJoystick->program, azimuthJoystick->vertShader);
glDetachShader(azimuthJoystick->program, azimuthJoystick->fragShader);
glDeleteShader(azimuthJoystick->vertShader);
glDeleteShader(azimuthJoystick->fragShader);
azimuthJoystick->vertShader = UNINITIALIZED_GL;
azimuthJoystick->fragShader = UNINITIALIZED_GL;
glDeleteProgram(azimuthJoystick->program);
azimuthJoystick->program = UNINITIALIZED_GL;
}
FREE(parent->custom);
}
static void *_rb_create_model(GLModel *parent) {
parent->custom = CALLOC(sizeof(GLModelRBJoystick), 1);
GLModelRBJoystick *azimuthJoystick = (GLModelRBJoystick *)parent->custom;
if (!azimuthJoystick) {
return NULL;
}
axes.azimuthModelDirty = false;
// degenerate the quad model into just a single line model ... (should not need to adjust allocated memory size
// since we should be using less than what was originally allocated)
parent->primType = GL_LINES;
parent->numVertices = 2;
GLsizei posTypeSize = getGLTypeSize(parent->positionType);
parent->positionArraySize = (parent->positionSize * posTypeSize * parent->numVertices);
parent->numElements = 2;
GLsizei eltTypeSize = getGLTypeSize(parent->elementType);
parent->elementArraySize = (eltTypeSize * parent->numElements);
azimuthJoystick->vertShader = UNINITIALIZED_GL;
azimuthJoystick->fragShader = UNINITIALIZED_GL;
azimuthJoystick->program = UNINITIALIZED_GL;
azimuthJoystick->uniformMVPIdx = UNINITIALIZED_GL;
bool err = true;
demoSource *vtxSource = NULL;
demoSource *frgSource = NULL;
do {
// load/setup specific shaders
vtxSource = glshader_createSource("SolidColor.vsh");
if (!vtxSource) {
ERRLOG("Cannot compile vertex shader for joystick azimuth!");
break;
}
frgSource = glshader_createSource("SolidColor.fsh");
if (!frgSource) {
ERRLOG("Cannot compile fragment shader for joystick azimuth!");
break;
}
// Build/use Program
azimuthJoystick->program = glshader_buildProgram(vtxSource, frgSource, /*withTexcoord:*/false, &azimuthJoystick->vertShader, &azimuthJoystick->fragShader);
azimuthJoystick->uniformMVPIdx = glGetUniformLocation(azimuthJoystick->program, "modelViewProjectionMatrix");
if (azimuthJoystick->uniformMVPIdx < 0) {
LOG("OOPS, no modelViewProjectionMatrix in RB shader : %d", azimuthJoystick->uniformMVPIdx);
break;
}
err = false;
} while (0);
GL_ERRLOG("build RB joystick");
if (vtxSource) {
glshader_destroySource(vtxSource);
}
if (frgSource) {
glshader_destroySource(frgSource);
}
if (err) {
_rb_destroy_model(parent);
azimuthJoystick = NULL;
}
return azimuthJoystick;
}
static void _rb_render(void) {
GLModelRBJoystick *azimuthJoystick = (GLModelRBJoystick *)axes.azimuthModel->custom;
// use azimuth (SolidColor) program
glUseProgram(azimuthJoystick->program);
glUniformMatrix4fv(azimuthJoystick->uniformMVPIdx, 1, GL_FALSE, mvpIdentity);
// NOTE : assuming we should just upload new postion data every time ...
glBindBuffer(GL_ARRAY_BUFFER, axes.azimuthModel->posBufferName);
glBufferData(GL_ARRAY_BUFFER, axes.azimuthModel->positionArraySize, axes.azimuthModel->positions, GL_DYNAMIC_DRAW);
// Bind our vertex array object
#if USE_VAO
glBindVertexArray(axes.azimuthModel->vaoName);
#else
glBindBuffer(GL_ARRAY_BUFFER, axes.azimuthModel->posBufferName);
GLsizei posTypeSize = getGLTypeSize(axes.azimuthModel->positionType);
// Set up parmeters for position attribute in the VAO including, size, type, stride, and offset in the currenly
// bound VAO This also attaches the position VBO to the VAO
glVertexAttribPointer(POS_ATTRIB_IDX, // What attibute index will this array feed in the vertex shader (see buildProgram)
axes.azimuthModel->positionSize, // How many elements are there per position?
axes.azimuthModel->positionType, // What is the type of this data?
GL_FALSE, // Do we want to normalize this data (0-1 range for fixed-pont types)
axes.azimuthModel->positionSize*posTypeSize, // What is the stride (i.e. bytes between positions)?
0); // What is the offset in the VBO to the position data?
glEnableVertexAttribArray(POS_ATTRIB_IDX);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, axes.azimuthModel->elementBufferName);
#endif
// draw it
glDrawElements(axes.azimuthModel->primType, axes.azimuthModel->numElements, axes.azimuthModel->elementType, 0);
// back to main framebuffer/quad program
glUseProgram(mainShaderProgram);
GL_ERRLOG("RB render");
}
// ----------------------------------------------------------------------------
static void _setup_axis_hud(GLModel *parent) {
@ -198,7 +354,7 @@ static void gltouchjoy_setup(void) {
joyglobals.isShuttingDown = false;
// axis object
// axis origin object
axes.model = mdlCreateQuad((GLModelParams_s){
.skew_x = -1.05,
@ -223,6 +379,40 @@ static void gltouchjoy_setup(void) {
return;
}
// axis aximuth object
bool azimuthError = true;
do {
axes.azimuthModel = mdlCreateQuad((GLModelParams_s){
.skew_x = -1.05,
.skew_y = -1.0,
.z = MODEL_DEPTH,
.obj_w = AXIS_OBJ_W,
.obj_h = AXIS_OBJ_H,
.positionUsageHint = GL_DYNAMIC_DRAW, // positions can change
.tex_w = 0,
.tex_h = 0,
.texcoordUsageHint = UNINITIALIZED_GL, // no texture data
}, (GLCustom){
.create = &_rb_create_model,
.destroy = &_rb_destroy_model,
});
if (!axes.azimuthModel) {
LOG("gltouchjoy azimuth model initialization problem");
break;
}
if (!axes.azimuthModel->custom) {
LOG("gltouchjoy azimuth custom model initialization problem");
break;
}
azimuthError = false;
} while (0);
if (azimuthError) {
mdlDestroyModel(&axes.azimuthModel);
}
// button object
buttons.model = mdlCreateQuad((GLModelParams_s){
@ -318,6 +508,10 @@ static void gltouchjoy_render(void) {
glhud_renderDefault(axes.model);
}
if (joyglobals.showAzimuth && axes.azimuthModelDirty) {
_rb_render();
}
// draw button(s)
alpha = glhud_getTimedVisibility(buttons.timingBegin, joyglobals.minAlpha, 1.0);
@ -390,7 +584,7 @@ static inline bool _is_point_on_axis_side(int x, int y) {
return (x >= touchport.axisX && x <= touchport.axisXMax && y >= touchport.axisY && y <= touchport.axisYMax);
}
static inline void _reset_model_position(GLModel *model, float touchX, float touchY, float objHalfW, float objHalfH) {
static inline void _reset_model_position(GLModel *model, float touchX, float touchY, float objHalfW, float objHalfH, GLModel *azimuthModel) {
float centerX = 0.f;
float centerY = 0.f;
@ -412,13 +606,21 @@ static inline void _reset_model_position(GLModel *model, float touchX, float tou
quad[8 +1] = centerY+objHalfH;
quad[12+0] = centerX+objHalfW;
quad[12+1] = centerY+objHalfH;
if (azimuthModel) {
GLfloat *quadRB = (GLfloat *)(azimuthModel->positions);
quadRB[0 +0] = centerX;
quadRB[0 +1] = centerY;
quadRB[4 +0] = centerX;
quadRB[4 +1] = centerY;
}
}
static inline void _axis_touch_down(int x, int y) {
axes.centerX = x;
axes.centerY = y;
_reset_model_position(axes.model, x, y, AXIS_OBJ_HALF_W, AXIS_OBJ_HALF_H);
_reset_model_position(axes.model, x, y, AXIS_OBJ_HALF_W, AXIS_OBJ_HALF_H, axes.azimuthModel);
axes.modelDirty = true;
TOUCH_JOY_LOG("---TOUCH %sDOWN (axis index %d) center:(%d,%d) -> joy(0x%02X,0x%02X)", (action == TOUCH_DOWN ? "" : "POINTER "), axes.trackingIndex, axes.centerX, axes.centerY, joy_x, joy_y);
@ -429,7 +631,7 @@ static inline void _button_touch_down(int x, int y) {
buttons.centerX = x;
buttons.centerY = y;
_reset_model_position(buttons.model, x, y, BUTTON_OBJ_HALF_W, BUTTON_OBJ_HALF_H);
_reset_model_position(buttons.model, x, y, BUTTON_OBJ_HALF_W, BUTTON_OBJ_HALF_H, NULL);
buttons.modelDirty = true;
TOUCH_JOY_LOG("---TOUCH %sDOWN (buttons index %d) center:(%d,%d) -> buttons(0x%02X,0x%02X)", (action == TOUCH_DOWN ? "" : "POINTER "), buttons.trackingIndex, buttons.centerX, buttons.centerY, joy_button0, joy_button1);
@ -437,6 +639,17 @@ static inline void _button_touch_down(int x, int y) {
}
static inline void _axis_move(int x, int y) {
if (joyglobals.showAzimuth) {
float centerX = 0.f;
float centerY = 0.f;
glhud_screenToModel(x, y, touchport.width, touchport.height, &centerX, &centerY);
GLfloat *quadRB = (GLfloat *)axes.azimuthModel->positions;
quadRB[4 +0] = centerX;
quadRB[4 +1] = centerY;
axes.azimuthModelDirty = true;
};
x -= axes.centerX;
y -= axes.centerY;
TOUCH_JOY_LOG("---TOUCH MOVE ...tracking axis:%d (%d,%d) -> joy(0x%02X,0x%02X)", axes.trackingIndex, x, y, joy_x, joy_y);
@ -467,6 +680,7 @@ static inline void _axis_touch_up(int x, int y) {
}
variant.curr->axisUp(x, y);
axes.trackingIndex = TRACKING_NONE;
axes.azimuthModelDirty = false;
}
static inline void _button_touch_up(int x, int y) {
@ -624,6 +838,10 @@ static void gltouchjoy_setShowControls(bool showControls) {
joyglobals.showControls = showControls;
}
static void gltouchjoy_setShowAzimuth(bool showAzimuth) {
joyglobals.showAzimuth = showAzimuth;
}
static void _animation_showTouchJoystick(void) {
if (!joyglobals.isAvailable) {
return;
@ -631,12 +849,12 @@ static void _animation_showTouchJoystick(void) {
int x = touchport.axisX + ((touchport.axisXMax - touchport.axisX)/2);
int y = touchport.axisY + ((touchport.axisYMax - touchport.axisY)/2);
_reset_model_position(axes.model, x, y, AXIS_OBJ_HALF_W, AXIS_OBJ_HALF_H);
_reset_model_position(axes.model, x, y, AXIS_OBJ_HALF_W, AXIS_OBJ_HALF_H, NULL);
axes.modelDirty = true;
x = touchport.buttonX + ((touchport.buttonXMax - touchport.buttonX)/2);
y = touchport.buttonY + ((touchport.buttonYMax - touchport.buttonY)/2);
_reset_model_position(buttons.model, x, y, BUTTON_OBJ_HALF_W, BUTTON_OBJ_HALF_H);
_reset_model_position(buttons.model, x, y, BUTTON_OBJ_HALF_W, BUTTON_OBJ_HALF_H, NULL);
buttons.modelDirty = true;
struct timespec now;
@ -794,6 +1012,7 @@ static void _init_gltouchjoy(void) {
joyglobals.isEnabled = true;
joyglobals.ownsScreen = true;
joyglobals.showControls = true;
joyglobals.showAzimuth = true;
joyglobals.screenDivider = 0.5f;
joyglobals.axisIsOnLeft = true;
joyglobals.switchThreshold = BUTTON_SWITCH_THRESHOLD_DEFAULT;
@ -806,6 +1025,7 @@ static void _init_gltouchjoy(void) {
joydriver_setTouchJoystickOwnsScreen = &gltouchjoy_setTouchJoystickOwnsScreen;
joydriver_ownsScreen = &gltouchjoy_ownsScreen;
joydriver_setShowControls = &gltouchjoy_setShowControls;
joydriver_setShowAzimuth = &gltouchjoy_setShowAzimuth;
joydriver_setTouchButtonTypes = &gltouchjoy_setTouchButtonTypes;
joydriver_setTouchAxisSensitivity = &gltouchjoy_setTouchAxisSensitivity;
joydriver_setButtonSwitchThreshold = &gltouchjoy_setButtonSwitchThreshold;

8
src/video/gltouchjoy.h
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@ -33,7 +33,8 @@ typedef struct GLTouchJoyGlobals {
bool isCalibrating; // Are we running in calibration mode?
bool isEnabled; // Does player want touchjoy enabled?
bool ownsScreen; // Does the touchjoy currently own the screen?
bool showControls; // Are controls visible
bool showControls; // Are controls visible?
bool showAzimuth; // Is joystick azimuth shown?
float minAlphaWhenOwnsScreen;
float minAlpha;
float screenDivider;
@ -48,9 +49,14 @@ extern GLTouchJoyGlobals joyglobals;
typedef struct GLTouchJoyAxes {
// origin model/texture
GLModel *model;
bool modelDirty;
// azimuth model
GLModel *azimuthModel;
bool azimuthModelDirty;
uint8_t rosetteChars[ROSETTE_ROWS * ROSETTE_COLS];
int rosetteScancodes[ROSETTE_ROWS * ROSETTE_COLS];