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Minor clean-up deadc0de in HGR40 generation

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This commit is contained in:
Aaron Culliney 2018-03-11 16:28:07 -07:00
parent 154b9a7ef8
commit cedf7b9d0e
1 changed files with 4 additions and 13 deletions
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17
src/display.c
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@ -130,9 +130,9 @@ static void _initialize_dhires_values(void) {
}
static void _initialize_hires_values(void) {
// precalculate colors for all the 256*8 bit combinations. */
// precalculate colors for all the 256*8 bit combinations
for (unsigned int value = 0x00; value <= 0xFF; value++) {
for (unsigned int e = value*8, last_not_black=0, v=value, b=0; b < 7; b++, v >>= 1, e++) {
for (unsigned int e = value<<3, last_not_black=0, v=value, b=0; b < 7; b++, v >>= 1, e++) {
if (v & 1) {
if (last_not_black) {
video__hires_even[e] = COLOR_LIGHT_WHITE;
@ -1059,7 +1059,7 @@ static inline void _calculate_interp_color(uint8_t *color_buf, const unsigned in
static inline void _plot_hires_pixels(uint8_t *dst, const uint8_t *src) {
for (unsigned int i=2; i; i--) {
for (unsigned int j=DYNAMIC_SZ-1; j; j--) {
for (unsigned int j=0; j<DYNAMIC_SZ-1; j++) {
uint16_t pix = *src;
pix = ((pix<<8) | pix);
*((uint16_t *)dst) = pix;
@ -1098,7 +1098,6 @@ static void _plot_hires40(uint16_t off, int page, int bank, bool is_even, uint8_
*((uint16_t *)&color_buf[0]) = *((uint16_t *)(fb_ptr-3));
*((uint16_t *)&color_buf[DYNAMIC_SZ-2]) = *((uint16_t *)(fb_ptr+15));
// %eax = +8
if (color_mode != COLOR_NONE) {
uint8_t *hires_altbase = NULL;
if (is_even) {
@ -1112,10 +1111,6 @@ static void _plot_hires40(uint16_t off, int page, int bank, bool is_even, uint8_
uint16_t pix16 = *((uint16_t *)(apple2_vmem+ea));
if ((pix16 & 0x100) && (pix16 & 0x40)) {
*((uint16_t *)&color_buf[DYNAMIC_SZ-3]) = (uint16_t)0x3737;// COLOR_LIGHT_WHITE
} else {
// PB_black0:
pix16 >>= 8;
color_buf[DYNAMIC_SZ-2] = hires_altbase[pix16<<3];
}
}
@ -1124,10 +1119,6 @@ static void _plot_hires40(uint16_t off, int page, int bank, bool is_even, uint8_
uint16_t pix16 = *((uint16_t *)(apple2_vmem+ea-1));
if ((pix16 & 0x100) && (pix16 & 0x40)) {
*((uint16_t *)&color_buf[1]) = (uint16_t)0x3737;// COLOR_LIGHT_WHITE
} else {
// PB_black1:
pix16 &= 0xFF;
color_buf[1] = hires_altbase[(pix16<<3)+6];
}
}
@ -1152,7 +1143,7 @@ static void _plot_hires40(uint16_t off, int page, int bank, bool is_even, uint8_
}
}
_plot_hires_pixels(fb_ptr-4, color_buf);
_plot_hires_pixels(/*dst:*/fb_ptr-4, /*src:*/color_buf);
}
static void (*_hirespage_plotter(uint32_t currswitches))(uint16_t, int, int, bool, uint8_t*) {