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Fixes #50 Implement flashing text

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This commit is contained in:
Stefan Arentz 2016-12-25 23:41:18 -05:00
parent 99f5833815
commit 674907e624
4 changed files with 38 additions and 17 deletions
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34
src/scr.c
View File

@ -38,7 +38,7 @@ static int txt_line_offsets[24] = {
0x228, 0x2a8, 0x328, 0x3a8, 0x050, 0x0d0, 0x150, 0x1d0, 0x250, 0x2d0, 0x350, 0x3d0
};
static inline void scr_render_character(struct scr_t *scr, int row, int column) {
static inline void scr_render_character(struct scr_t *scr, int row, int column, bool flash) {
uint16_t base = (scr->two->screen_page == EWM_A2P_SCREEN_PAGE1) ? 0x0400 : 0x0800;
uint8_t c = scr->two->screen_txt_data[((txt_line_offsets[row] + base) + column) - 0x0400];
if (scr->chr->characters[c] != NULL) {
@ -48,6 +48,18 @@ static inline void scr_render_character(struct scr_t *scr, int row, int column)
dst.w = 21;
dst.h = 24;
if (c >= 0x40 && c <= 0x7f) {
if (flash) {
c -= 0x40;
} else {
if (c <= 0x5f) {
c += 0x80;
} else {
c += 0x40;
}
}
}
if (scr->color_scheme == EWM_SCR_COLOR_SCHEME_MONOCHROME) {
SDL_SetTextureColorMod(scr->chr->characters[c], 0, 255, 0);
}
@ -56,10 +68,10 @@ static inline void scr_render_character(struct scr_t *scr, int row, int column)
}
}
static inline void scr_render_txt_screen(struct scr_t *scr) {
static inline void scr_render_txt_screen(struct scr_t *scr, bool flash) {
for (int row = 0; row < 24; row++) {
for (int column = 0; column < 40; column++) {
scr_render_character(scr, row, column);
scr_render_character(scr, row, column, flash);
}
}
}
@ -110,7 +122,7 @@ static inline void scr_render_lores_block(struct scr_t *scr, int row, int column
}
}
static inline void scr_render_lgr_screen(struct scr_t *scr) {
static inline void scr_render_lgr_screen(struct scr_t *scr, bool flash) {
bool mixed = (scr->two->screen_graphics_style == EWM_A2P_SCREEN_GRAPHICS_STYLE_MIXED);
// Render graphics
@ -124,7 +136,7 @@ static inline void scr_render_lgr_screen(struct scr_t *scr) {
if (mixed) {
for (int row = 20; row < 24; row++) {
for (int column = 0; column < 40; column++) {
scr_render_character(scr, row, column);
scr_render_character(scr, row, column, flash);
}
}
}
@ -248,7 +260,7 @@ static void inline scr_render_hgr_line_color(struct scr_t *scr, int line, uint16
}
}
static void inline scr_render_hgr_screen(struct scr_t *scr) {
static void inline scr_render_hgr_screen(struct scr_t *scr, bool flash) {
// Render graphics
int lines = (scr->two->screen_graphics_style == EWM_A2P_SCREEN_GRAPHICS_STYLE_MIXED) ? 160 : 192;
uint16_t hgr_base = hgr_page_offsets[scr->two->screen_page];
@ -265,7 +277,7 @@ static void inline scr_render_hgr_screen(struct scr_t *scr) {
if (scr->two->screen_graphics_style == EWM_A2P_SCREEN_GRAPHICS_STYLE_MIXED) {
for (int row = 20; row < 24; row++) {
for (int column = 0; column < 40; column++) {
scr_render_character(scr, row, column);
scr_render_character(scr, row, column, flash);
}
}
}
@ -298,21 +310,21 @@ void ewm_scr_destroy(struct scr_t *scr) {
// TODO
}
void ewm_scr_update(struct scr_t *scr) {
void ewm_scr_update(struct scr_t *scr, int phase, int fps) {
SDL_SetRenderDrawColor(scr->renderer, 0, 0, 0, 255);
SDL_RenderClear(scr->renderer);
switch (scr->two->screen_mode) {
case EWM_A2P_SCREEN_MODE_TEXT:
scr_render_txt_screen(scr);
scr_render_txt_screen(scr, phase >= (fps / 2));
break;
case EWM_A2P_SCREEN_MODE_GRAPHICS:
switch (scr->two->screen_graphics_mode) {
case EWM_A2P_SCREEN_GRAPHICS_MODE_LGR:
scr_render_lgr_screen(scr);
scr_render_lgr_screen(scr, phase >= (fps / 2));
break;
case EWM_A2P_SCREEN_GRAPHICS_MODE_HGR:
scr_render_hgr_screen(scr);
scr_render_hgr_screen(scr, phase >= (fps / 2));
break;
}
break;

2
src/scr.h
View File

@ -45,7 +45,7 @@ struct scr_t {
struct scr_t *ewm_scr_create(struct ewm_two_t *two, SDL_Renderer *renderer);
int ewm_scr_init(struct scr_t *scr, struct ewm_two_t *two, SDL_Renderer *renderer);
void ewm_scr_destroy(struct scr_t *scr);
void ewm_scr_update(struct scr_t *scr);
void ewm_scr_update(struct scr_t *scr, int phase, int fps);
void ewm_scr_set_color_scheme(struct scr_t *scr, int color_scheme);
#endif

6
src/scr_test.c
View File

@ -43,7 +43,7 @@ void txt_full_refresh_setup(struct scr_t *scr) {
}
void txt_full_refresh_test(struct scr_t *scr) {
ewm_scr_update(scr);
ewm_scr_update(scr, 0, 0);
}
void lgr_full_refresh_setup(struct scr_t *scr) {
@ -59,7 +59,7 @@ void lgr_full_refresh_setup(struct scr_t *scr) {
}
void lgr_full_refresh_test(struct scr_t *scr) {
ewm_scr_update(scr);
ewm_scr_update(scr, 0, 0);
}
void hgr_full_refresh_setup(struct scr_t *scr) {
@ -74,7 +74,7 @@ void hgr_full_refresh_setup(struct scr_t *scr) {
}
void hgr_full_refresh_test(struct scr_t *scr) {
ewm_scr_update(scr);
ewm_scr_update(scr, 0, 0);
}
void test(struct scr_t *scr, char *name, test_setup_t test_setup, test_run_t test_run) {

13
src/two.c
View File

@ -585,6 +585,7 @@ int ewm_two_main(int argc, char **argv) {
SDL_StartTextInput();
Uint32 ticks = SDL_GetTicks();
int phase = 1;
while (true) {
if (!ewm_two_poll_event(two, window)) {
@ -596,13 +597,21 @@ int ewm_two_main(int argc, char **argv) {
break;
}
if (two->screen_dirty) {
ewm_scr_update(two->scr);
// Update the screen when it is flagged dirty or if we enter
// the second half of the frames we draw each second. The
// latter because that is when we update flashing text.
if (two->screen_dirty || (phase == 0) || (phase == (50 / 2))) {
ewm_scr_update(two->scr, phase, 50);
two->screen_dirty = false;
SDL_RenderPresent(two->scr->renderer);
}
ticks = SDL_GetTicks();
phase += 1;
if (phase == 50) {
phase = 0;
}
}
}