mirror of https://github.com/OpenRCT2/OpenRCT2.git
sub0x67a934 turned into almost proper C code
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parent
2c7118c01b
commit
ff86f7e9e9
137
src/gfx.c
137
src/gfx.c
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@ -262,9 +262,10 @@ void gfx_fill_rect_inset(rct_drawpixelinfo* dpi, short left, short top, short ri
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}
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#define RCT2_Y_RELATED_GLOBAL_1 0x9E3D12 //uint16
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#define RCT2_Y_RELATED_GLOBAL_2 0x9ABDAC //sint16
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#define RCT2_Y_END_POINT_GLOBAL 0x9ABDAC //sint16
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#define RCT2_X_RELATED_GLOBAL_1 0x9E3D10 //uint16
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#define RCT2_X_RELATED_GLOBAL_2 0x9ABDA8 //sint16
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#define RCT2_X_END_POINT_GLOBAL 0x9ABDA8 //sint16
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#define RCT2_DPI_LINE_LENGTH_GLOBAL 0x9ABDB0 //uint16 width+pitch
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void sub_0x67AA18(int* source_bits_pointer, int* dest_bits_pointer, rct_drawpixelinfo *dpi){
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if (RCT2_GLOBAL(0xEDF81C, uint32) & 0x2000000){
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@ -304,7 +305,7 @@ StartLoop:
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edx &= 0xFFFF0000;
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}
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edx += cx;
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edx -= RCT2_GLOBAL(0x9ABDA8, sint16);
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edx -= RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16);
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if (edx > 0){
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cx -= edx;
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if (cx <= 0){
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@ -329,10 +330,10 @@ StartLoop:
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}
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TestLoop:
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if (!(RCT2_GLOBAL(0x9ABDB4, uint8) & 0x80)) goto StartLoop;
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edx = RCT2_GLOBAL(0x9ABDB0, sint16);
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edx = RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, sint16);
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ebp += edx;
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RCT2_GLOBAL(0x9ABDAC, sint16)--;
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if (RCT2_GLOBAL(0x9ABDAC, sint16))goto StartLoop;
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RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16)--;
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if (RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16))goto StartLoop;
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}
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@ -341,61 +342,75 @@ TestLoop:
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* This function readies all the global vars for copying the sprite data onto the screen
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* I think its only used for bitmaps onto buttons but i am not sure.
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*/
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void sub_0x67A934(rct_drawpixelinfo *source_dpi, rct_drawpixelinfo *dest_dpi, int x, int y){
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void sub_0x67A934(rct_g1_element *source_g1, rct_drawpixelinfo *dest_dpi, int x, int y){
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int _edi = dest_dpi, _esi;
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sint16 translated_x = x, translated_y = y;
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char* bits_pointer;
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bits_pointer = dest_dpi->bits;
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translated_y += RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_1, uint16) - dest_dpi->y;
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RCT2_GLOBAL(0xEDF808, uint32) = 0;
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) = source_dpi->y;//RCT2_GLOBAL(0x9E3D0E, sint16);
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if (translated_y < 0)
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{
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) += translated_y;
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if (RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) <= 0)return;
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RCT2_GLOBAL(0xEDF808, sint16) -= translated_y;
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translated_y = 0;
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int start_y, end_y;
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start_y = y + source_g1->y_offset - dest_dpi->y;
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//If the start position is negative reset to zero
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if (start_y < 0){
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//Create the end point within the drawing area
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end_y = source_g1->height + start_y;
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//If the end point is now <= 0 no need to draw
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if (end_y <= 0)return;
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RCT2_GLOBAL(0xEDF808, sint16) -= start_y;
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start_y = 0;
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}
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else{
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bits_pointer += (dest_dpi->width + dest_dpi->pitch)*translated_y;
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end_y = source_g1->height;
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//Move the pointer to the correct starting y location
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bits_pointer += (dest_dpi->width + dest_dpi->pitch)*start_y;
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}
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translated_y += RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) - dest_dpi->height;
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if (translated_y > 0){
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) -= translated_y;
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if (RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) <= 0)return;
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int height = start_y + end_y;
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//If the image is taller than the drawing area
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if (height > dest_dpi->height){
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//Make the end within the drawing area
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end_y -= height - dest_dpi->height;
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//If the end is now <=0 then there is nothing to draw
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if (end_y <= 0)return;
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}
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RCT2_GLOBAL(0xEDF80C, uint32) = 0;
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translated_x += RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_1, uint16) - dest_dpi->x;
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int start_x, end_x;
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start_x = x + source_g1->x_offset - dest_dpi->x;
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) = source_dpi->x;//RCT2_GLOBAL(0x9E3D0C, sint16);
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if (translated_x < 0){
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) += translated_x;
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if (RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) <= 0)return;
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RCT2_GLOBAL(0xEDF80C, sint16) -= translated_x;
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translated_x = 0;
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//If the start position is negative reset to zero
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if (start_x < 0){
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//Create the end point within the drawing area
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end_x = source_g1->width + start_x;
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//If the end point is now <= 0 no need to draw
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if (end_x <= 0)return;
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RCT2_GLOBAL(0xEDF80C, sint16) -= start_x;
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start_x = 0;
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}
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else{
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bits_pointer += translated_x;
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}
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translated_x += RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16);
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translated_x -= dest_dpi->width;
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if (translated_x > 0){
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) -= translated_x;
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if (RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) <= 0)return;
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end_x = source_g1->width;
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//Increment the pointer to our start location
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bits_pointer += start_x;
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}
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RCT2_GLOBAL(0x9ABDB0, uint16) = dest_dpi->width + dest_dpi->pitch;
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int width = start_x + end_x;
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//If the image is wider than the drawing area
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if (width > dest_dpi->width){
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//Make the end within drawing area
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end_x -= width - dest_dpi->width;
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//If the end is now <=0 then there is nothing to draw
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if (end_x <= 0)return;
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}
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// I dont think it uses ecx, edx but just in case
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//esi is the source and bits_pointer is the destination
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RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, uint16) = dest_dpi->width + dest_dpi->pitch;
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RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) = end_x;
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RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) = end_y;
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//sub_0x67AA18(RCT2_GLOBAL(0x9E3D08, int*), (int*)bits_pointer, dest_dpi);
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RCT2_CALLPROC_X_EBPSAFE(0x67AA18, 0, 0, translated_x, translated_y, RCT2_GLOBAL(0x9E3D08, uint32), bits_pointer, dest_dpi);
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RCT2_CALLPROC_X_EBPSAFE(0x67AA18, 0, 0, 0, 0, source_g1->offset, bits_pointer, dest_dpi);
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}
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/**
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@ -423,7 +438,6 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
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return;//jump into 0x67a445
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}
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else if (((image_id)& 0xE0000000) && !(image_id & (1 << 29))){
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char* find = "FINDMEDUNCAN";
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RCT2_CALLPROC_X(0x0067A28E, 0, image_id, x, y, 0, dpi, 0);
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return;//jump into 0x67a361
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}
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@ -477,16 +491,17 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
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}
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eax = *((uint32*)ebx + 2);
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ebp = *((uint32*)ebx + 3);
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rct_drawpixelinfo* g1_source_dpi = (rct_drawpixelinfo*)ebx;
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rct_g1_element* g1_source = (rct_g1_element*)ebx;
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//This is a rct2_drawpixelinfo struct
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RCT2_GLOBAL(0x9E3D08, uint32) = *((uint32*)ebx); //offset to g1 bits?
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RCT2_GLOBAL(0x9E3D0C, uint32) = *((uint32*)ebx + 1);
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RCT2_GLOBAL(0x9E3D10, uint32) = *((uint32*)ebx + 2); //X-Y related unsigned? sets RCT2_X_RELATED_GLOBAL_1 and Y
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RCT2_GLOBAL(0x9E3D14, uint32) = *((uint32*)ebx + 3);
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if (RCT2_GLOBAL(0x9E3D14, uint32) & (1 << 2)){
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//Title screen bitmaps
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//RCT2_CALLPROC_X(0x0067A934, eax, ebx, x, y, 0, dpi, ebp);
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sub_0x67A934(g1_source_dpi, dpi, x, y);
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sub_0x67A934(g1_source, dpi, x, y);
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return;
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}
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@ -499,14 +514,14 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
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RCT2_GLOBAL(0x9E3CE0, uint32) = 0;
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bits_pointer = dpi->bits;
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) = RCT2_GLOBAL(0x9E3D0E, sint16);
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RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) = RCT2_GLOBAL(0x9E3D0E, sint16);
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translated_y = y + RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_1, uint16) - dpi->y;
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if (translated_y < 0){
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) += translated_y;
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if (RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) <= 0){
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RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) += translated_y;
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if (RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) <= 0){
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return;
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}
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translated_y = -translated_y;
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@ -518,53 +533,53 @@ void gfx_draw_sprite(rct_drawpixelinfo *dpi, int image_id, int x, int y)
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bits_pointer += eax;
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}
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translated_y += RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) - dpi->height;;
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translated_y += RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) - dpi->height;;
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if (translated_y > 0){
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RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) -= translated_y;
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if (RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, sint16) <=0)
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RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) -= translated_y;
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if (RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, sint16) <= 0)
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{
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return;
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}
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}
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) = RCT2_GLOBAL(0x9E3D0C, sint16);
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RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) = RCT2_GLOBAL(0x9E3D0C, sint16);
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eax = dpi->width + dpi->pitch - RCT2_GLOBAL(0x9E3D0C, sint16);
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RCT2_GLOBAL(0x9ABDAE, uint16) = 0;
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RCT2_GLOBAL(0x9ABDB0, sint16) = dpi->width + dpi->pitch - RCT2_GLOBAL(0x9E3D0C, sint16);
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RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, sint16) = dpi->width + dpi->pitch - RCT2_GLOBAL(0x9E3D0C, sint16);
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translated_x = x + RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_1, uint16) - dpi->x;
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if (translated_x < 0){
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) += translated_x;
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if (RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) <= 0){
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RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) += translated_x;
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if (RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) <= 0){
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return;
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}
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translated_x -= RCT2_GLOBAL(0x9ABDAE, sint16);
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esi -= translated_x;
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RCT2_GLOBAL(0x9E3CE0, sint32) -= translated_x;
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RCT2_GLOBAL(0x9ABDB0, sint16) -= translated_x;
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RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, sint16) -= translated_x;
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translated_x = 0;
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}
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bits_pointer += translated_x;
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translated_x += RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) - dpi->width;
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translated_x += RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) - dpi->width;
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if (translated_x > 0){
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RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) -= translated_x;
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if (RCT2_GLOBAL(RCT2_X_RELATED_GLOBAL_2, sint16) <= 0){
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RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) -= translated_x;
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if (RCT2_GLOBAL(RCT2_X_END_POINT_GLOBAL, sint16) <= 0){
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return;
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}
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RCT2_GLOBAL(0x9ABDAE, sint16) += translated_x;
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RCT2_GLOBAL(0x9ABDB0, sint16) += translated_x;
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RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, sint16) += translated_x;
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}
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if (!(RCT2_GLOBAL(0x9E3D14, uint16) & 0x02)){
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eax = (RCT2_GLOBAL(RCT2_Y_RELATED_GLOBAL_2, uint8)) << 8;
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eax = (RCT2_GLOBAL(RCT2_Y_END_POINT_GLOBAL, uint8)) << 8;
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edx = RCT2_GLOBAL(0x9ABDAE, sint16);
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ebp = RCT2_GLOBAL(0x9ABDB0, sint16);
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ebp = RCT2_GLOBAL(RCT2_DPI_LINE_LENGTH_GLOBAL, sint16);
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ebx = RCT2_GLOBAL(0xEDF81C, uint32);
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ecx = 0xFFFF&translated_x;
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//ebx, esi, edi, ah used in 0x67a690
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