diff options
| -rw-r--r-- | src/library_sdl.js | 7 | ||||
| -rw-r--r-- | tests/hello_world_sdl.cpp | 4 |
2 files changed, 6 insertions, 5 deletions
diff --git a/src/library_sdl.js b/src/library_sdl.js index 548f3b0d..b72e239b 100644 --- a/src/library_sdl.js +++ b/src/library_sdl.js @@ -460,13 +460,14 @@ mergeInto(LibraryManager.library, { assert(buffer % 4 == 0, 'Invalid buffer offset: ' + buffer); var src = buffer >> 2; var dst = 0; + var isScreen = surf == SDL.screen; while (dst < num) { // TODO: access underlying data buffer and write in 32-bit chunks or more var val = HEAP32[src]; // This is optimized. Instead, we could do {{{ makeGetValue('buffer', 'dst', 'i32') }}}; - data[dst] = val & 0xff; + data[dst+2] = val & 0xff; data[dst+1] = (val >> 8) & 0xff; - data[dst+2] = (val >> 16) & 0xff; - data[dst+3] = (val >> 24) & 0xff; + data[dst ] = (val >> 16) & 0xff; + data[dst+3] = isScreen ? 0xff : ((val >> 24) & 0xff); src++; dst += 4; } diff --git a/tests/hello_world_sdl.cpp b/tests/hello_world_sdl.cpp index 35aec303..b6401995 100644 --- a/tests/hello_world_sdl.cpp +++ b/tests/hello_world_sdl.cpp @@ -14,13 +14,13 @@ int main() { *((char*)screen->pixels + i*256*4 + j*4 + 0) = i; *((char*)screen->pixels + i*256*4 + j*4 + 1) = j; *((char*)screen->pixels + i*256*4 + j*4 + 2) = 255-i; - *((char*)screen->pixels + i*256*4 + j*4 + 3) = 255; + *((char*)screen->pixels + i*256*4 + j*4 + 3) = (i+j)%255; // actually ignored, since this is to the screen } } if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen); SDL_Flip(screen); - printf("you should see a colored cube.\n"); + printf("you should see a smoothly-colored square - no sharp lines but the square borders!\n"); printf("and here is some text that should be HTML-friendly: amp: |&| double-quote: |\"| quote: |'| less-than, greater-than, html-like tags: |<cheez></cheez>|\nanother line.\n"); SDL_Quit(); |