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Code Issues Releases Wiki Activity

Add comments, removed unused vars

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This commit is contained in:
ZedThree
2014-06-01 19:10:35 +02:00
parent 89b199a6c8
commit fcc5e29b76
1 changed files with 50 additions and 83 deletions
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133
src/gfx.c
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@@ -1427,28 +1427,27 @@ int gfx_clip_string(char* buffer, int width)
}
/**
* Wrap the text in buffer to width
* Wrap the text in buffer to width, returns width of longest line.
*
* Inserts NULL where line should break (as \n is used for something else),
* so the number of lines is returned in num_lines. font_height seems to be
* a control character for line height.
*
* rct2: 0x006C21E2
* buffer (esi)
* width (edi)
* line_height? (ebx)
* width (edi) - in
* num_lines (edi) - out
* font_height (ebx) - out
*/
int gfx_wrap_string(char* buffer, int* width, int* ebx)
int gfx_wrap_string(char* buffer, int width, int* num_lines, int* font_height)
{
unsigned int line_width = 0;
unsigned int max_width = 0;
rct_g1_element* g1_element;
uint16* current_font_sprite_base = RCT2_ADDRESS(RCT2_ADDRESS_CURRENT_FONT_SPRITE_BASE, uint16);
unsigned int num_lines = 0;
// Unused?
unsigned int max_width = 0;
if (line_width > max_width) {
max_width = line_width;
}
line_width = 0;
*num_lines = 0;
// Pointer to the start of the current word
unsigned char* curr_word = NULL;
@@ -1474,16 +1473,16 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
curr_char++;
continue;
case 7:
ebx = 0x1C0;
*font_height = 0x1C0;
continue;
case 8:
ebx = 0x2A0;
*font_height = 0x2A0;
continue;
case 9:
ebx = 0xE0;
*font_height = 0xE0;
continue;
case 0x0A:
ebx = 0;
*font_height = 0;
continue;
case 0x17:
line_width += RCT2_ADDRESS(RCT2_ADDRESS_G1_ELEMENTS + 4, uint16)[(*curr_char & 0x7FFFF)];
@@ -1504,7 +1503,7 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
line_width += RCT2_ADDRESS(0x0141E9E8, uint8)[*current_font_sprite_base + (*curr_char-0x20)];
if (line_width <= *width) {
if (line_width <= width) {
continue;
}
if (curr_word == 0) {
@@ -1524,7 +1523,7 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
*curr_char = swap_char;
curr_char = old_char;
curr_char++;
num_lines += 1;
*num_lines += 1;
if (line_width > max_width) {
max_width = line_width;
@@ -1537,7 +1536,7 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
line_width = curr_width;
}
num_lines += 1;
*num_lines += 1;
*curr_char = 0;
if (line_width > max_width) {
@@ -1547,11 +1546,7 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
curr_word = 0;
}
*width = num_lines;
if (line_width <= max_width) {
line_width = max_width;
}
return line_width;
return max_width;
}
@@ -1569,8 +1564,6 @@ int gfx_wrap_string(char* buffer, int* width, int* ebx)
*/
void gfx_draw_string_left_clipped(rct_drawpixelinfo* dpi, int format, void* args, int colour, int x, int y, int width)
{
// RCT2_CALLPROC_X(0x006C1B83, colour, format, x, y, (int)args, (int)dpi, width);
char* buffer;
buffer = RCT2_ADDRESS(RCT2_ADDRESS_COMMON_STRING_FORMAT_BUFFER, char);
@@ -1616,7 +1609,6 @@ void gfx_draw_string_centred_clipped(rct_drawpixelinfo *dpi, int format, void *a
}
}
/**
* Draws i formatted text string right aligned.
* rct2: 0x006C1BFC
@@ -1656,17 +1648,17 @@ void gfx_draw_string_right(rct_drawpixelinfo* dpi, int format, void* args, int c
*/
int gfx_draw_string_centred_wrapped(rct_drawpixelinfo *dpi, void *args, int x, int y, int width, int format, int colour)
{
int eax, ebx, ecx, edx, esi, edi, ebp;
int font_height, line_width, line_y, num_lines;
// Location of font sprites
uint16* current_font_sprite_base;
// Location of font flags
uint16 current_font_flags;
char* buffer = RCT2_ADDRESS(0x009C383D, char);
current_font_sprite_base = RCT2_ADDRESS(RCT2_ADDRESS_CURRENT_FONT_SPRITE_BASE, uint16);
*current_font_sprite_base = 0xE0;
char* buffer = RCT2_ADDRESS(0x009C383D, char);
gfx_draw_string(dpi, buffer, colour, dpi->x, dpi->y);
buffer = RCT2_ADDRESS(RCT2_ADDRESS_COMMON_STRING_FORMAT_BUFFER, char);
@@ -1675,18 +1667,14 @@ int gfx_draw_string_centred_wrapped(rct_drawpixelinfo *dpi, void *args, int x, i
*current_font_sprite_base = 0xE0;
esi = buffer;
edi = width;
ecx = gfx_wrap_string(esi, &edi, &ebx);
// RCT2_CALLFUNC_X(0x006C21E2, &eax, &ebx, &ecx, &edx, &esi, &edi, &ebp);
ecx &= 0xFFFF;
edi &= 0xFFFF;
// line_width unused here
line_width = gfx_wrap_string(buffer, width, &num_lines, &font_height);
RCT2_GLOBAL(0x00F43938, uint16) = 0x0A;
if (ebx > 0xE0) {
if (font_height > 0xE0) {
RCT2_GLOBAL(0x00F43938, uint16) = 6;
if (ebx != 0x1C0) {
if (font_height != 0x1C0) {
RCT2_GLOBAL(0x00F43938, uint16) = 0x12;
}
}
@@ -1695,27 +1683,22 @@ int gfx_draw_string_centred_wrapped(rct_drawpixelinfo *dpi, void *args, int x, i
RCT2_GLOBAL(0x00F43938, uint16) = RCT2_GLOBAL(0x00F43938, uint16) + 1;
}
ebx = (RCT2_GLOBAL(0x00F43938, uint16) / 2) * edi;
edx = y - ebx;
font_height = (RCT2_GLOBAL(0x00F43938, uint16) / 2) * num_lines;
line_y = y - font_height;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_FONT_FLAGS, uint16) = 0;
buffer = RCT2_ADDRESS(RCT2_ADDRESS_COMMON_STRING_FORMAT_BUFFER, char);
do {
int new_width = gfx_get_string_width(buffer);
new_width /= 2;
gfx_draw_string(dpi, buffer, 0xFE, x - new_width, edx);
int half_width = gfx_get_string_width(buffer) / 2;
gfx_draw_string(dpi, buffer, 0xFE, x - half_width, line_y);
buffer += strlen(buffer) + 1;
edx += RCT2_GLOBAL(0x00F43938, uint16);
eax = (RCT2_GLOBAL(0x00F43938, uint16) / 2);
ebx -= eax;
line_y += RCT2_GLOBAL(0x00F43938, uint16);
num_lines--;
} while (num_lines >= 0);
} while (ebx >= 0);
return (sint16)(edx & 0xFFFF) - y;
return (sint16)(line_y & 0xFFFF) - y;
}
/**
@@ -1731,14 +1714,11 @@ int gfx_draw_string_centred_wrapped(rct_drawpixelinfo *dpi, void *args, int x, i
*/
int gfx_draw_string_left_wrapped(rct_drawpixelinfo *dpi, void *args, int x, int y, int width, int format, int colour)
{
int eax, ebx, ecx, edx, esi, edi, ebp;
// font height might actually be something else
int font_height, line_width, line_y, num_lines;
// Location of font sprites
uint16* current_font_sprite_base;
// Location of font flags
uint16 current_font_flags;
current_font_sprite_base = RCT2_ADDRESS(RCT2_ADDRESS_CURRENT_FONT_SPRITE_BASE, uint16);
uint16* current_font_sprite_base = RCT2_ADDRESS(RCT2_ADDRESS_CURRENT_FONT_SPRITE_BASE, uint16);
*current_font_sprite_base = 0xE0;
char* buffer = RCT2_ADDRESS(0x009C383D, char);
@@ -1749,51 +1729,38 @@ int gfx_draw_string_left_wrapped(rct_drawpixelinfo *dpi, void *args, int x, int
format_string(buffer, format, args);
buffer = RCT2_ADDRESS(RCT2_ADDRESS_COMMON_STRING_FORMAT_BUFFER, char);
*current_font_sprite_base = 0xE0;
// Add line breaks? Adds \0 rather than \n
// not working for strings with colour code?
esi = buffer;
edi = width;
ecx = gfx_wrap_string(esi, &edi, &ebx);
// RCT2_CALLFUNC_X(0x006C21E2, &eax, &ebx, &ecx, &edx, &esi, &edi, &ebp);
ecx &= 0xFFFF;
edi &= 0xFFFF;
// Line width unused here
line_width = gfx_wrap_string(buffer, width, &num_lines, &font_height);
num_lines &= 0xFFFF;
// Font height?
RCT2_GLOBAL(0x00F43938, uint16) = 0x0A;
if (ebx > 0xE0) {
if (font_height > 0xE0) {
RCT2_GLOBAL(0x00F43938, uint16) = 6;
if (ebx != 0x1C0) {
if (font_height != 0x1C0) {
RCT2_GLOBAL(0x00F43938, uint16) = 0x12;
}
}
// Number of lines?
ebx = (RCT2_GLOBAL(0x00F43938, uint16) / 2) * edi;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_FONT_FLAGS, uint16) = 0;
buffer = RCT2_ADDRESS(RCT2_ADDRESS_COMMON_STRING_FORMAT_BUFFER, char);
esi = buffer;
edx = y;
line_y = y;
do {
gfx_draw_string(dpi, buffer, 0xFE, x, edx);
gfx_draw_string(dpi, buffer, 0xFE, x, line_y);
buffer += strlen(buffer) + 1;
edx += RCT2_GLOBAL(0x00F43938, uint16);
eax = (RCT2_GLOBAL(0x00F43938, uint16) / 2);
ebx -= eax;
line_y += RCT2_GLOBAL(0x00F43938, uint16);
// Bug if this line is removed?!
font_height -= 1;
} while (ebx >= 0);
num_lines--;
} while (num_lines >= 0);
return (sint16)(edx & 0xFFFF) - y;
return (sint16)(line_y & 0xFFFF) - y;
}