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path: root/src/mesa/state_tracker/st_atom_pixeltransfer.c
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2009-04-17gallium: Create OGL state tracker wrappers for various CPU access operations.Thomas Hellstrom
There are two usage types of buffer CPU accesses: One where we try to use the buffer contents for multiple draw commands in a batch. (batch := sequence of commands that are flushed together), like incrementally adding bitmaps to a bitmap texture that is reallocated on flush. And one where we assume we can safely overwrite the old buffer contexts, like glTexSubImage. In this case we need to make sure all old drawing commands referencing the buffer are flushed before we map the buffer. This is easily forgotten. Add wrappers for the most common of these operations. The first type is prefixed with "st_no_flush" and the second type is prefixed with "st_cond_flush", where "cond" indicates that we attmpt to only flush if there is indeed unflushed draw commands referencing the buffer. Prefixed functions are screen::get_tex_transfer pipe_buffer_write pipe_buffer_read pipe_buffer_map Please use the wrappers whenever possible. Signed-off-by: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
2009-04-09st: remove comp_byte parameter to st_texture_create()Brian Paul
We can determine if the texture is compressed by checking the format.
2009-03-04gallium: Remove some superfluous instances of #include "p_inlines.h".Michel Dänzer
2009-03-04gallium: Unify reference counting.Michel Dänzer
The core reference counting code is centralized in p_refcnt.h. This has some consequences related to struct pipe_buffer: * The screen member of struct pipe_buffer must be initialized, or pipe_buffer_reference() will crash trying to destroy a buffer with reference count 0. u_simple_screen takes care of this, but I may have missed some of the drivers not using it. * Except for rare exceptions deep in winsys code, buffers must always be allocated via pipe_buffer_create() or via screen->*buffer_create() rather than via winsys->*buffer_create().
2009-02-28mesa: rename, reorder FRAG_RESULT_x tokensBrian Paul
s/FRAG_RESULT_DEPR/FRAG_RESULT_DEPTH/ s/FRAG_RESULT_COLR/FRAG_RESULT/COLOR/ Remove FRAG_RESULT_COLH (NV half-precision) output since we never used it. Next, we might merge the COLOR and DATA outputs (COLOR0, COLOR1, etc).
2009-02-05gallium: No longer allow CPU mapping surfaces directly.Michel Dänzer
Instead, a new pipe_transfer object has to be created and mapped for transferring data between the CPU and a texture. This gives the driver more flexibility for textures in address spaces that aren't CPU accessible. This is a first pass; softpipe/xlib builds and runs glxgears, but it only shows a black window. Looks like something's off related to the Z buffer, so the depth test always fails.
2008-07-19gallium: Finer grained is_format_supported.José Fonseca
2008-05-31mesa: Apply MSVC portability fixes from Alan Hourihane.José Fonseca
2008-05-02gallium: Add texture usage flags, special-case allocation of display targetsKeith Whitwell
For many envirionments it's necessary to allocate display targets in a window-system friendly manner. Add facilities so that a driver can tell if a texture is likely to be used to generate a display surface and if use special allocation paths if necessary. Hook up softpipe to call into the winsys->surface_alloc_storage() routine in this case, though we probably want to change that interface slightly also.
2008-05-02Merge branch 'gallium-0.1' into gallium-tex-surfacesKeith Whitwell
2008-05-02Some changed for non-C99 compilersAlan Hourihane
2008-05-01gallium: tex surface checkpointKeith Whitwell
2008-04-16gallium: implement RGBA pixel maps in the pixel transfer fragment programBrian Paul
2008-04-16gallium: finish-up and fix support for GL_COLOR matrix on pixel xfer pathBrian Paul
2008-04-04gallium: make sure to set the SamplersUsed field for bitmap/drawpixels shadersBrian Paul
Also, make sure that field is copied/updated in the program clone and combine functions. Without this we weren't getting SAMP declarations in the TGSI shaders.
2008-01-22gallium: use temp reg for storing color to avoid reading 'result.color'Brian
2007-10-30Use program serial numbers to avoid re-generating fragment programs for ↵Brian
glDrawPixels.
2007-10-30color matrixBrian
2007-10-30start using program cacheBrian
2007-10-30Disable debug code.Brian
Basic code for PixelTranslfer ops and glDrawPixels works now. A pixel transfer program is generated and combined with the current fragment shader.
2007-10-30Rename file since it's now a state atomBrian