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Add secondary framebuffer, instead of allocating on stack

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This commit is contained in:
Patrick Horlebein
2020-04-25 11:43:14 +02:00
parent b8c822696b
commit d69293342d
3 changed files with 24 additions and 16 deletions
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6
workspace/TS100/Core/Inc/OLED.hpp
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@@ -101,10 +101,11 @@ public:
bool clear); bool clear);
static void drawHeatSymbol(uint8_t state); static void drawHeatSymbol(uint8_t state);
static void drawScrollIndicator(uint8_t p, uint8_t h); // Draws a scrolling position indicator static void drawScrollIndicator(uint8_t p, uint8_t h); // Draws a scrolling position indicator
static void transitionToContents(uint8_t *framebuffer, bool forwardNavigation); static void transitionSecondaryFramebuffer(bool forwardNavigation);
static void set_framebuffer(uint8_t *buffer); static void useSecondaryFramebuffer(bool useSecondary);
private: private:
static void drawChar(char c); // Draw a character to a specific location static void drawChar(char c); // Draw a character to a specific location
static void setFramebuffer(uint8_t *buffer);
static const uint8_t* currentFont;// Pointer to the current font used for rendering to the buffer static const uint8_t* currentFont;// Pointer to the current font used for rendering to the buffer
static uint8_t* firstStripPtr; // Pointers to the strips to allow for buffer having extra content static uint8_t* firstStripPtr; // Pointers to the strips to allow for buffer having extra content
static uint8_t* secondStripPtr; //Pointers to the strips static uint8_t* secondStripPtr; //Pointers to the strips
@@ -114,6 +115,7 @@ private:
static int16_t cursor_x, cursor_y; static int16_t cursor_x, cursor_y;
static uint8_t displayOffset; static uint8_t displayOffset;
static uint8_t screenBuffer[16 + (OLED_WIDTH * 2) + 10]; // The data buffer static uint8_t screenBuffer[16 + (OLED_WIDTH * 2) + 10]; // The data buffer
static uint8_t secondFrameBuffer[OLED_WIDTH * 2];
}; };
#endif /* OLED_HPP_ */ #endif /* OLED_HPP_ */

20
workspace/TS100/Core/Src/OLED.cpp
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@@ -24,6 +24,7 @@ uint8_t OLED::fontWidth, OLED::fontHeight;
int16_t OLED::cursor_x, OLED::cursor_y; int16_t OLED::cursor_x, OLED::cursor_y;
uint8_t OLED::displayOffset; uint8_t OLED::displayOffset;
uint8_t OLED::screenBuffer[16 + (OLED_WIDTH * 2) + 10]; // The data buffer uint8_t OLED::screenBuffer[16 + (OLED_WIDTH * 2) + 10]; // The data buffer
uint8_t OLED::secondFrameBuffer[OLED_WIDTH * 2];
/*Setup params for the OLED screen*/ /*Setup params for the OLED screen*/
/*http://www.displayfuture.com/Display/datasheet/controller/SSD1307.pdf*/ /*http://www.displayfuture.com/Display/datasheet/controller/SSD1307.pdf*/
@@ -93,7 +94,7 @@ void OLED::initialize() {
sizeof(OLED_Setup_Array)); sizeof(OLED_Setup_Array));
} }
void OLED::set_framebuffer(uint8_t *buffer) { void OLED::setFramebuffer(uint8_t *buffer) {
if (buffer == NULL) { if (buffer == NULL) {
firstStripPtr = &screenBuffer[FRAMEBUFFER_START]; firstStripPtr = &screenBuffer[FRAMEBUFFER_START];
secondStripPtr = &screenBuffer[FRAMEBUFFER_START + OLED_WIDTH]; secondStripPtr = &screenBuffer[FRAMEBUFFER_START + OLED_WIDTH];
@@ -146,15 +147,14 @@ void OLED::drawScrollIndicator(uint8_t y, uint8_t height) {
/** /**
* Plays a transition animation between two framebuffers. * Plays a transition animation between two framebuffers.
* @param framebuffer Second framebuffer to use for animation. * @param forwardNavigation Direction of the navigation animation.
* @param forward Direction of the navigation animation.
* *
* If forward is true, this displays a forward navigation to the second framebuffer contents. * If forward is true, this displays a forward navigation to the second framebuffer contents.
* Otherwise a rewinding navigation animation is shown to the second framebuffer contents. * Otherwise a rewinding navigation animation is shown to the second framebuffer contents.
*/ */
void OLED::transitionToContents(uint8_t *framebuffer, bool forwardNavigation) { void OLED::transitionSecondaryFramebuffer(bool forwardNavigation) {
uint8_t *firstBackStripPtr = &framebuffer[0]; uint8_t *firstBackStripPtr = &secondFrameBuffer[0];
uint8_t *secondBackStripPtr = &framebuffer[OLED_WIDTH]; uint8_t *secondBackStripPtr = &secondFrameBuffer[OLED_WIDTH];
uint32_t totalDuration = 50; // 500ms uint32_t totalDuration = 50; // 500ms
uint32_t duration = 0; uint32_t duration = 0;
@@ -193,6 +193,14 @@ void OLED::transitionToContents(uint8_t *framebuffer, bool forwardNavigation) {
} }
} }
void OLED::useSecondaryFramebuffer(bool useSecondary) {
if (useSecondary) {
setFramebuffer(secondFrameBuffer);
} else {
setFramebuffer(NULL);
}
}
void OLED::setRotation(bool leftHanded) { void OLED::setRotation(bool leftHanded) {
#ifdef MODEL_TS80 #ifdef MODEL_TS80
leftHanded = !leftHanded; leftHanded = !leftHanded;

14
workspace/TS100/Core/Src/gui.cpp
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@@ -840,14 +840,13 @@ void gui_Menu(const menuitem *menu) {
// Then we play a transition from the current primary // Then we play a transition from the current primary
// framebuffer to the new buffer. // framebuffer to the new buffer.
// The extra buffer is discarded at the end of the transition. // The extra buffer is discarded at the end of the transition.
uint8_t secondaryFrameBuffer[OLED_WIDTH * 2]; OLED::useSecondaryFramebuffer(true);
OLED::set_framebuffer(secondaryFrameBuffer);
OLED::setFont(0); OLED::setFont(0);
OLED::setCursor(0, 0); OLED::setCursor(0, 0);
OLED::clearScreen(); OLED::clearScreen();
menu[currentScreen].draw.func(); menu[currentScreen].draw.func();
OLED::set_framebuffer(NULL); OLED::useSecondaryFramebuffer(false);
OLED::transitionToContents(secondaryFrameBuffer, true); OLED::transitionSecondaryFramebuffer(true);
} }
while ((menu[currentScreen].draw.func != NULL) && earlyExit == false) { while ((menu[currentScreen].draw.func != NULL) && earlyExit == false) {
@@ -905,14 +904,13 @@ void gui_Menu(const menuitem *menu) {
menu[currentScreen].incrementHandler.func(); menu[currentScreen].incrementHandler.func();
if (enterGUIMenu) { if (enterGUIMenu) {
uint8_t secondaryFrameBuffer[OLED_WIDTH * 2]; OLED::useSecondaryFramebuffer(true);
OLED::set_framebuffer(secondaryFrameBuffer);
OLED::setFont(0); OLED::setFont(0);
OLED::setCursor(0, 0); OLED::setCursor(0, 0);
OLED::clearScreen(); OLED::clearScreen();
menu[currentScreen].draw.func(); menu[currentScreen].draw.func();
OLED::set_framebuffer(NULL); OLED::useSecondaryFramebuffer(false);
OLED::transitionToContents(secondaryFrameBuffer, false); OLED::transitionSecondaryFramebuffer(false);
} }
enterGUIMenu = true; enterGUIMenu = true;
} else { } else {