~widelands-dev/widelands/better-bufferdata : changes

~widelands-dev/widelands/better-bufferdata » Changes from revision 7697

From Revision 7697 to 7678

Rev	Summary	Authors	Date
7697	Avoid inefficient use of glBufferSubData Avoid inefficient use of glBufferSubData Drivers have a hard time keeping track of when the same physical region of memory is used with different contents. With Mesa's radeonsi driver, for example, practically every glBufferSubData leads to a flush of the command stream (not necessarily a stall, but high overhead nevertheless). By using glBufferData, the driver is explicitly told that old data in the buffer can be discarded, which leads to the driver automatically using different memory regions from a memory pool, which allows many more draw calls to be batched in a single command stream submission. You can see the effect with Mesa's radeonsi driver by running with the GALLIUM_HUD=.ddraw-calls+num-cs-flushes variable set.	Nicolai Hähnle	8 years ago
7696	Merged lp:~widelands-dev/widelands/logic_directory_layout: Merged lp:~widelands-dev/widelands/logic_directory_layout: Created subdirectories in src/logic to make understanding and navigating the code easier.	Wideland's Bunnybot	8 years ago
7695	Merged lp:~widelands-dev/widelands/request_supply_opt. Merged lp:~widelands-dev/widelands/request_supply_opt.	Wideland's Bunnybot	8 years ago
7694	Merged lp:~widelands-dev/widelands/fix_overlays: Merged lp:~widelands-dev/widelands/fix_overlays: Fixes the display of the buildhelp. This got broken in r7688 by changing the callback function of the OverlayManager to return a bool instead of a NodeCap.	Wideland's Bunnybot	8 years ago
7693	Merged lp:~widelands-dev/widelands/appveyor. Merged lp:~widelands-dev/widelands/appveyor.	Wideland's Bunnybot	8 years ago
7692	Merged lp:~widelands-dev/widelands/render_queue: Merged lp:~widelands-dev/widelands/render_queue: - Implemented a RenderQueue. All drawing operations during drawing only register an item into the queue, at the end of the frame, the RenderQueue will draw everything onto the screen all at once. This leads to significant less OpenGL state changes, but will only make a really big difference when all graphics land in texture atlases. - Textures internal format is now OpenGL ordered (i.e. bottom line is y = 0). This needs swapping of rows for pictures on load, but Textures are no longer upside down on the GPU which makes working with OpenGL coordinates easier. - Made all drawing programs z-layer aware and enabled depth testing for OpenGL. - Made all programs batch aware: The renderqueue batches items for the same program into a vector which is passed to the programs. They can then batch them together into fewer draw calls if possible. - An ImageCache now has a compactify() method that builds a texture atlas out of all the image that are cached in it while having all Image pointers it handed out before staying valid. This was only used for debugging, but in a followup branch I will change the ImageTexture to be backed by a texture atlas by default. - Refactored minimap renderer to have less repeated code. - Remove Texture::get_pixels() and format() and let the (set\|get)_pixels pass RGBAColor instead of uint32_t for clr. - RenderTarget::draw_line() and derived methods now take two Points instead of 4 integers which are inclusive to the line. - Only reallocate OpenGL buffers if we need more space. - Small refactorings in src/graphics/CMakeLists.txt.	Wideland's Bunnybot	8 years ago
7691	Merged lp:~widelands-dev/widelands/bug-1530999. Merged lp:~widelands-dev/widelands/bug-1530999.	Wideland's Bunnybot	8 years ago
7690	Merged lp:~widelands-dev/widelands/bug-1526903. Merged lp:~widelands-dev/widelands/bug-1526903.	Wideland's Bunnybot	8 years ago
7689	Added Janosch Peters and myself to Coders. Added Janosch Peters and myself to Coders.	GunChleoc	8 years ago
7688	Merged lp:~janosch-peters/widelands/editor-remove-invalid-re... Merged lp:~janosch-peters/widelands/editor-remove-invalid-resources.	Wideland's Bunnybot	8 years ago
7687	Merged lp:~janosch-peters/widelands/bugfix_1395238 Merged lp:~janosch-peters/widelands/bugfix_1395238	Wideland's Bunnybot	8 years ago
7686	Merged lp:~klaus-halfmann/widelands/feature-Hasi50 Merged lp:~klaus-halfmann/widelands/feature-Hasi50	Wideland's Bunnybot	8 years ago
7685	Merged lp:~widelands-dev/widelands/options_window Merged lp:~widelands-dev/widelands/options_window	Wideland's Bunnybot	8 years ago
7684	silence codechecker (includes alphabetical order) silence codechecker (includes alphabetical order)	Tino	8 years ago
7683	Merged lp:~widelands-dev/widelands/clang_warnings Merged lp:~widelands-dev/widelands/clang_warnings	Holger Rapp	8 years ago
7682	fixed empire fisher animation and unify names of animations fixed empire fisher animation and unify names of animations	franku	8 years ago
7681	Allow user to pick default terrain for new maps in the edito... Allow user to pick default terrain for new maps in the editor, bug-536409	tiborb95 at gmail	8 years ago
7680	Fixed image overlap on the bottom of tables Fixed image overlap on the bottom of tables	tiborb95 at gmail	8 years ago
7679	redesign of UI of Editor New Map and New Random Map redesign of UI of Editor New Map and New Random Map	tiborb95 at gmail	8 years ago
7678	Cleaning up some more historical baggage: Militarysites no l... Cleaning up some more historical baggage: Militarysites no longer inherit from productionsites.	tiborb95 at gmail	8 years ago

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