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document and name G1 flags

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This commit is contained in:
Ted John
2016-07-09 00:27:21 +01:00
parent a8c1c451d5
commit 4d3fca767d
2 changed files with 10 additions and 7 deletions
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7
src/drawing/drawing.h
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@@ -71,8 +71,11 @@ assert_struct_size(rct_g1_element_32bit, 0x10);
enum {
G1_FLAG_BMP = (1 << 0), //No invisible sections
G1_FLAG_RLE_COMPRESSION = (1<<2),
G1_FLAG_BMP = (1 << 0), // Image data is encoded as raw pixels (no transparancy)
G1_FLAG_1 = (1 << 1),
G1_FLAG_RLE_COMPRESSION = (1 << 2), // Image data is encoded using RCT2's form of run length encoding
G1_FLAG_HAS_ZOOM_SPRITE = (1 << 4), // Use a different sprite for higher zoom levels
G1_FLAG_NO_ZOOM_DRAW = (1 << 5), // Does not get drawn at higher zoom levels (only zoom 0)
};
enum {

10
src/drawing/sprite.c
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@@ -425,7 +425,7 @@ void FASTCALL gfx_draw_sprite_palette_set_software(rct_drawpixelinfo *dpi, int i
rct_g1_element *g1_source = gfx_get_g1_element(image_element);
if ( dpi->zoom_level && (g1_source->flags & (1<<4)) ){
if (dpi->zoom_level != 0 && (g1_source->flags & G1_FLAG_HAS_ZOOM_SPRITE)) {
rct_drawpixelinfo zoomed_dpi = {
.bits = dpi->bits,
.x = dpi->x >> 1,
@@ -439,7 +439,7 @@ void FASTCALL gfx_draw_sprite_palette_set_software(rct_drawpixelinfo *dpi, int i
return;
}
if ( dpi->zoom_level && (g1_source->flags & (1<<5)) ){
if (dpi->zoom_level != 0 && (g1_source->flags & G1_FLAG_NO_ZOOM_DRAW)) {
return;
}
@@ -554,7 +554,7 @@ void FASTCALL gfx_draw_sprite_palette_set_software(rct_drawpixelinfo *dpi, int i
//Move the pointer to the start point of the source
source_pointer += g1_source->width*source_start_y + source_start_x;
if (!(g1_source->flags & 0x02)){
if (!(g1_source->flags & G1_FLAG_1)) {
gfx_bmp_sprite_to_buffer(palette_pointer, unknown_pointer, source_pointer, dest_pointer, g1_source, dpi, height, width, image_type);
return;
}
@@ -609,8 +609,8 @@ void FASTCALL gfx_draw_sprite_raw_masked_software(rct_drawpixelinfo *dpi, int x,
rct_g1_element *imgMask = &g1Elements[maskImage & 0x7FFFF];
rct_g1_element *imgColour = &g1Elements[colourImage & 0x7FFFF];
assert(imgMask->flags & 1);
assert(imgColour->flags & 1);
assert(imgMask->flags & G1_FLAG_BMP);
assert(imgColour->flags & G1_FLAG_BMP);
if (dpi->zoom_level != 0) {
// TODO implement other zoom levels (probably not used though)