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d3da8a7367
scummvm/graphics
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Thierry Crozat d3da8a7367 GRAPHICS: Fix undefined behaviour in ManagedSurface blit on opaque target 
The color components computation had intermediate results that could overflow
a signed int. So now the computation is done using unsigned int instead, which
prevents the overflow (since the max intermediate value is 255*255*257*257,
which fits in an unsigned int).

Note: I also considered adding an explicit cast to do the uint8 * uint8
operations using uint32, but decided not to as it is not required (there is no
overflow due to integer promotion) and makes the code more difficult to read.
2022-10-31 21:46:22 +00:00
..
fonts GRAPHICS: Don't use unsafe strcat and strcpy 2022-10-23 22:46:19 +02:00
macgui MACGUI: Fix incorrect logical operator usage. PVS-Studio V564 2022-10-27 23:27:44 +02:00
nanosvg GRAPHICS: Fix GCC Compiler Duplicated Branch Warnings in Nano SVG 2022-01-12 04:59:23 +00:00
opengl GRAPHICS: Don't use unsafe sprintf and vsprintf 2022-10-23 22:46:19 +02:00
scaler GRAPHICS: Support 8bpp formats with the Normal scaler 2022-08-25 21:46:35 +01:00
tinygl GRAPHICS: Correct spelling mistake 2022-10-27 15:56:06 +02:00
colormasks.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
conversion.cpp GRAPHICS: Add crossKeyBlit and crossKeyBlitMap 2022-09-17 12:04:49 +02:00
conversion.h GRAPHICS: Correct spelling mistake 2022-10-27 15:56:05 +02:00
cursor.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
cursorman.cpp GRAPHICS: Fix UB when bytesPerPixel == 4 2022-01-06 19:39:05 +02:00
cursorman.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
font.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
font.h GRAPHICS: Added getFontName method to TTFFont 2022-03-14 21:57:14 -07:00
fontman.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
fontman.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
framelimiter.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
framelimiter.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
korfont.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
korfont.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
larryScale_generated.cpp GRAPHICS: Fix GCC Duplicated Branch Warnings in LarryScale 2022-01-12 08:26:39 +00:00
larryScale_generator.js GRAPHICS: Fix GCC Duplicated Branch Warnings in LarryScale 2022-01-12 08:26:39 +00:00
larryScale.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
larryScale.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
maccursor.cpp GRAPHICS: Add support for loading oversized Mac CURS resources 2022-05-07 20:51:44 +03:00
maccursor.h GRAPHICS: Add support for loading oversized Mac CURS resources 2022-05-07 20:51:44 +03:00
macega.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
managed_surface.cpp GRAPHICS: Fix undefined behaviour in ManagedSurface blit on opaque target 2022-10-31 21:46:22 +00:00
managed_surface.h GRAPHICS: Bump color parameter to uint32 type for functions using it 2022-09-09 02:21:47 +02:00
mode.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
module.mk GRAPHICS: Move PM5544 test pattern drawing to a separate file 2022-10-08 23:39:18 +02:00
nine_patch.cpp GRAPHICS: Round border length to nearest interger 2022-08-05 20:15:03 +02:00
nine_patch.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
palette.cpp GRAPHICS: Add naive algorithm option for PaletteLookup 2022-07-17 13:17:41 +02:00
palette.h GRAPHICS: Add naive algorithm option for PaletteLookup 2022-07-17 13:17:41 +02:00
pixelformat.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
pixelformat.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
pm5544.cpp GRAPHICS: Use proper color names in PM5544 2022-10-08 23:39:18 +02:00
pm5544.h GRAPHICS: Added doxygen documentation to PM5544 2022-10-08 23:39:18 +02:00
primitives.cpp GRAPHICS: Change drawRect1 in primitives to fix corner pixel issues 2022-09-19 00:38:28 +02:00
primitives.h GRAPHICS: Bump color parameter to uint32 type for functions using it 2022-09-09 02:21:47 +02:00
renderer.cpp OPENGL: Merge both OpenGL contexts 2022-06-26 18:32:10 +02:00
renderer.h GRAPHICS: Create a dynamic list of available renderers 2022-04-10 18:11:46 +02:00
scaler.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
scalerplugin.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
scalerplugin.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
screen.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
screen.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
sjis.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
sjis.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
surface.cpp GRAPHICS: Add possibility to specify dithering algorithm. Default is Floyd-Steinberg 2022-09-28 23:02:05 +02:00
surface.h GRAPHICS: Add possibility to specify dithering algorithm. Default is Floyd-Steinberg 2022-09-28 23:02:05 +02:00
svg.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
svg.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
thumbnail.cpp GRAPHICS: Add function to create thumbnail without binding it to a output stream 2022-09-08 19:10:42 +02:00
thumbnail.h GRAPHICS: Add function to create thumbnail without binding it to a output stream 2022-09-08 19:10:42 +02:00
transform_struct.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
transform_struct.h GRAPHICS: Correct spelling mistake 2022-10-27 15:56:05 +02:00
transform_tools.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
transform_tools.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
transparent_surface.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
transparent_surface.h JANITORIAL: Fix "the the" and similar typos 2022-07-29 19:36:40 +03:00
VectorRenderer.cpp ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
VectorRenderer.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
VectorRendererSpec.cpp JANITORIAL: Fix "the the" and similar typos 2022-07-29 19:36:40 +03:00
VectorRendererSpec.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
wincursor.cpp GRAPHICS: Remove false positive warning from Win cursor group parser 2022-06-12 14:06:59 +02:00
wincursor.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00
yuv_to_rgb.cpp JANITORIAL: Fix "the the" and similar typos 2022-07-29 19:36:40 +03:00
yuv_to_rgb.h ALL: Update ScummVM project license to GPLv3+ 2021-12-26 18:48:43 +01:00