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Move common function to base class

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This commit is contained in:
Aaron Culliney 2015-04-19 14:28:47 -07:00
parent 142f0181bc
commit 725cf68011
3 changed files with 52 additions and 50 deletions
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44
src/video/glhudmodel.c
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@ -28,6 +28,7 @@ void glhud_setupDefault(GLModel *parent) {
const unsigned int rows = hudElement->tplHeight;
uint8_t *fb = hudElement->pixels;
#warning FIXME I AM HERE : verify this does not overwrite memory
// render template into indexed fb
interface_printMessageCentered(fb, cols, rows, RED_ON_BLACK, submenu, cols, rows);
@ -107,3 +108,46 @@ void glhud_destroyDefault(GLModel *parent) {
FREE(parent->custom);
}
void glhud_screenToModel(const float x, const float y, const int screenW, const int screenH, float *centerX, float *centerY) {
*centerX = (x/(screenW>>1))-1.f;
*centerY = ((screenH-y)/(screenH>>1))-1.f;
}
void glhud_quadModelToScreen(const GLModel *model, const int screenW, const int screenH, float screenCoords[4]) {
float x0 = 1.0;
float y0 = 1.0;
float x1 = -1.0;
float y1 = -1.0;
#warning NOTE: we possibly should use matrix calculations (but assuming HUD elements are identity/orthographic for now)
GLfloat *positions = (GLfloat *)(model->positions);
unsigned int stride = model->positionSize;
unsigned int len = model->positionArraySize/getGLTypeSize(model->positionType);
for (unsigned int i=0; i < len; i += stride) {
float x = (positions[i] + 1.f) / 2.f;
if (x < x0) {
x0 = x;
}
if (x > x1) {
x1 = x;
}
float y = (positions[i+1] + 1.f) / 2.f;
LOG("\tmodel x:%f, y:%f", x, y);
if (y < y0) {
y0 = y;
}
if (y > y1) {
y1 = y;
}
}
// OpenGL screen origin is bottom-left (Android is top-left)
float yFlip0 = screenH - (y1 * screenH);
float yFlip1 = screenH - (y0 * screenH);
screenCoords[0] = x0 * screenW;
screenCoords[1] = yFlip0;
screenCoords[2] = x1 * screenW;
screenCoords[3] = yFlip1;
}

6
src/video/glhudmodel.h
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@ -40,4 +40,10 @@ void glhud_renderDefault(GLModel *parent);
// default model destruction
void glhud_destroyDefault(GLModel *parent);
// translate screen coordinates to model
void glhud_screenToModel(const float x, const float y, const int screenW, const int screenH, float *centerX, float *centerY);
// orthographic translation of model coordinates to screen coordinates
void glhud_quadModelToScreen(const GLModel *model, const int screenW, const int screenH, float screenCoords[4]);
#endif

52
src/video/gltouchjoy.c
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@ -55,7 +55,6 @@ enum {
static bool isAvailable = false; // Were there any OpenGL/memory errors on gltouchjoy initialization?
static bool isEnabled = true; // Does player want touchjoy enabled?
static bool isVisible = true; // Does player want touchjoy to have some form of visibility?
static float minAlpha = 0.0; // Minimum alpha value of touchjoy components (at zero, will not draw)
// viewport touch
@ -189,50 +188,6 @@ static void _setup_button_object(GLModel *parent) {
glhud_setupDefault(parent);
}
static inline void _screen_to_model(float x, float y, float *screenX, float *screenY) {
*screenX = (x/(touchport.width>>1))-1.f;
*screenY = ((touchport.height-y)/(touchport.height>>1))-1.f;
}
static void _model_to_screen(float screenCoords[4], GLModel *model) {
float x0 = 1.0;
float y0 = 1.0;
float x1 = -1.0;
float y1 = -1.0;
#warning NOTE: we possibly should use matrix calculations (but assuming HUD elements are identity/orthographic for now)
GLfloat *positions = (GLfloat *)(model->positions);
unsigned int stride = model->positionSize;
unsigned int len = model->positionArraySize/getGLTypeSize(model->positionType);
for (unsigned int i=0; i < len; i += stride) {
float x = (positions[i] + 1.f) / 2.f;
if (x < x0) {
x0 = x;
}
if (x > x1) {
x1 = x;
}
float y = (positions[i+1] + 1.f) / 2.f;
LOG("\tmodel x:%f, y:%f", x, y);
if (y < y0) {
y0 = y;
}
if (y > y1) {
y1 = y;
}
}
// OpenGL screen origin is bottom-left (Android is top-left)
float yFlip0 = touchport.height - (y1 * touchport.height);
float yFlip1 = touchport.height - (y0 * touchport.height);
screenCoords[0] = x0 * touchport.width;
screenCoords[1] = yFlip0;
screenCoords[2] = x1 * touchport.width;
screenCoords[3] = yFlip1;
}
static void gltouchjoy_setup(void) {
LOG("gltouchjoy_setup ...");
@ -286,9 +241,6 @@ static void gltouchjoy_render(void) {
if (!isEnabled) {
return;
}
if (!isVisible) {
return;
}
struct timespec now = { 0 };
struct timespec deltat = { 0 };
@ -310,7 +262,7 @@ static void gltouchjoy_render(void) {
}
if (alpha > 0.0) {
glViewport(0, 0, touchport.width, touchport.height); // NOTE : show these HUD elements beyond the framebuffer dimensions
glViewport(0, 0, touchport.width, touchport.height); // NOTE : show these HUD elements beyond the A2 framebuffer dimensions
glUniform1f(alphaValue, alpha);
glActiveTexture(TEXTURE_ACTIVE_TOUCHJOY_AXIS);
@ -401,7 +353,7 @@ static inline void _reset_model_position(GLModel *model, float touchX, float tou
float centerX = 0.f;
float centerY = 0.f;
_screen_to_model(touchX, touchY, &centerX, &centerY);
glhud_screenToModel(touchX, touchY, touchport.width, touchport.height, &centerX, &centerY);
/* 2...3
* .