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Refactor : coalesced text/mixed drawing codepath

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This commit is contained in:
Aaron Culliney 2016-01-16 12:17:16 -08:00
parent 8626215205
commit a8e6f4fc92
1 changed files with 34 additions and 55 deletions
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89
src/display.c
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@ -16,6 +16,7 @@
#include "common.h"
#define SCANSTEP (SCANWIDTH-12)
#define SCANDSTEP (SCANWIDTH-6)
#define DYNAMIC_SZ 11 // 7 pixels (as bytes) + 2pre + 2post
@ -605,13 +606,11 @@ static inline void _plot_character(const unsigned int font_off, uint8_t *fb_ptr)
_plot_char40(/*dst*/&fb_ptr, /*src*/&font_ptr);
}
static inline void _plot_character0(uint16_t ea, uint8_t b)
{
static void _plot_character0(uint16_t ea, uint8_t b) {
_plot_character(b<<7/* *128 */, video__fb1+video__screen_addresses[ea-0x0400]);
}
static inline void _plot_character1(uint16_t ea, uint8_t b)
{
static void _plot_character1(uint16_t ea, uint8_t b) {
_plot_character(b<<7/* *128 */, video__fb2+video__screen_addresses[ea-0x0800]);
}
@ -629,23 +628,21 @@ static inline void _plot_80character(const unsigned int font_off, uint8_t *fb_pt
}
// FIXME TODO NOTE : dup'ing work here?
static inline void _plot_80character0(uint16_t ea, uint8_t b)
{
static void _plot_80character0(uint16_t ea, uint8_t b) {
b = apple_ii_64k[1][ea];
_plot_80character(b<<6/* *64 */, video__fb1+video__screen_addresses[ea-0x0400]);
b = apple_ii_64k[0][ea];
_plot_80character(b<<6/* *64 */, video__fb1+video__screen_addresses[ea-0x0400]+7);
}
static inline void _plot_80character1(uint16_t ea, uint8_t b)
{
static void _plot_80character1(uint16_t ea, uint8_t b) {
b = apple_ii_64k[1][ea];
_plot_80character(b<<6/* *64 */, video__fb2+video__screen_addresses[ea-0x0800]);
b = apple_ii_64k[0][ea];
_plot_80character(b<<6/* *64 */, video__fb2+video__screen_addresses[ea-0x0800]+7);
}
static inline void _plot_block(const uint32_t val, uint8_t *fb_ptr) {
static inline void _plot_block(const uint8_t val, uint8_t *fb_ptr) {
video_setDirty();
uint8_t color = (val & 0x0F) << 4;
uint32_t val32 = (color << 24) | (color << 16) | (color << 8) | color;
@ -682,67 +679,49 @@ static inline void _plot_block1(uint16_t ea, uint8_t b)
_plot_block(b, video__fb2+video__screen_addresses[ea-0x0800]);
}
#define DRAW_TEXT(PAGE, SW) \
do { \
if (softswitches & SS_TEXT) { \
if (softswitches & SS_80COL) { \
_plot_80character##PAGE(ea, b); \
} else if (softswitches & SW) { \
/* ??? */ \
} else { \
_plot_character##PAGE(ea, b); \
} \
} else { \
if (softswitches & (SS_HIRES|SW)) { \
/* ??? */ \
} else { \
_plot_block##PAGE(ea, b); \
} \
} \
} while(0)
#define DRAW_MIXED(PAGE, SW) \
do { \
if (softswitches & (SS_TEXT|SS_MIXED)) { \
if (softswitches & SS_80COL) { \
_plot_80character##PAGE(ea, b); \
} else if (softswitches & SW) { \
/* ??? */ \
} else { \
_plot_character##PAGE(ea, b); \
} \
} else { \
if (softswitches & (SS_HIRES|SW)) { \
/* ??? */ \
} else { \
_plot_block##PAGE(ea, b); \
} \
} \
} while(0)
static inline void _draw_text(uint16_t ea, uint8_t b, int page, uint32_t sw, uint32_t flags) {
if (softswitches & flags) {
if (softswitches & SS_80COL) {
void (*plot80Fn)(uint16_t, uint8_t) = !page ? _plot_80character0 : _plot_80character1;
plot80Fn(ea,b);
} else if (softswitches & sw) {
/* ??? */
} else {
void (*plotCharFn)(uint16_t, uint8_t) = !page ? _plot_character0 : _plot_character1;
plotCharFn(ea, b);
}
} else {
if (softswitches & (SS_HIRES|sw)) {
/* ??? */
} else {
void (*plotBlockFn)(uint16_t, uint8_t) = !page ? _plot_block0 : _plot_block1;
plotBlockFn(ea, b);
}
}
}
GLUE_C_WRITE(video__write_2e_text0)
{
base_textwrt[ea] = b;
DRAW_TEXT(0, SS_TEXTWRT);
_draw_text(ea, b, 0, SS_TEXTWRT, SS_TEXT);
}
GLUE_C_WRITE(video__write_2e_text0_mixed)
{
base_textwrt[ea] = b;
DRAW_MIXED(0, SS_TEXTWRT);
_draw_text(ea, b, 0, SS_TEXTWRT, (SS_TEXT|SS_MIXED));
}
GLUE_C_WRITE(video__write_2e_text1)
{
base_ramwrt[ea] = b;
DRAW_TEXT(1, SS_RAMWRT);
_draw_text(ea, b, 1, SS_RAMWRT, SS_TEXT);
}
GLUE_C_WRITE(video__write_2e_text1_mixed)
{
base_ramwrt[ea] = b;
DRAW_MIXED(1, SS_RAMWRT);
_draw_text(ea, b, 1, SS_RAMWRT, (SS_TEXT|SS_MIXED));
}
// ----------------------------------------------------------------------------
@ -1148,15 +1127,15 @@ void video_redraw(void) {
// text/lores pages
if (y < 20) {
DRAW_TEXT(0, SS_TEXTWRT);
_draw_text(ea, b, 0, SS_TEXTWRT, SS_TEXT);
ea += 0x400;
b = apple_ii_64k[0][ea];
DRAW_TEXT(1, SS_RAMWRT);
_draw_text(ea, b, 1, SS_RAMWRT, SS_TEXT);
} else {
DRAW_MIXED(0, SS_TEXTWRT);
_draw_text(ea, b, 0, SS_TEXTWRT, (SS_TEXT|SS_MIXED));
ea += 0x400;
b = apple_ii_64k[0][ea];
DRAW_MIXED(1, SS_RAMWRT);
_draw_text(ea, b, 1, SS_RAMWRT, (SS_TEXT|SS_MIXED));
}
// hires/dhires pages