diff options
| -rw-r--r-- | src/gallium/drivers/r300/r300_cb.h | 133 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_cs.h | 12 |
2 files changed, 145 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_cb.h b/src/gallium/drivers/r300/r300_cb.h new file mode 100644 index 0000000000..934526323c --- /dev/null +++ b/src/gallium/drivers/r300/r300_cb.h @@ -0,0 +1,133 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * Copyright 2010 Marek Olšák <maraeo@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/** + * This file contains macros for building command buffers in memory. + * + * Use NEW_CB for buffers with a varying size and it will also allocate + * the buffer. + * Use BEGIN_CB for arrays with a static size. + * + * Example: + * + * uint32_t cb[3]; + * CB_LOCALS; + * + * BEGIN_CB(cb, 3); + * OUT_CB_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2); + * OUT_CB(blend_color_red_alpha); + * OUT_CB(blend_color_green_blue); + * END_CB; + * + * And later: + * + * CS_LOCALS; + * WRITE_CS_TABLE(cb, 3); + * + * Or using a little slower variant: + * + * CS_LOCALS; + * BEGIN_CS(cb, 3); + * OUT_CS_TABLE(cb, 3); + * END_CS; + */ + +#ifndef R300_CB_H +#define R300_CB_H + +#include "r300_reg.h" + +/* Yes, I know macros are ugly. However, they are much prettier than the code + * that they neatly hide away, and don't have the cost of function setup, so + * we're going to use them. */ + + +/** + * Command buffer setup. + */ + +#define CB_LOCALS \ + int cs_count = 0; \ + uint32_t *cs_ptr = NULL; \ + (void) cs_count; (void) cs_ptr; + +#define NEW_CB(ptr, size) do { \ + assert(sizeof(*ptr) == sizeof(uint32_t)); \ + cs_ptr = (ptr) = (uint32_t*)malloc((size) * sizeof(uint32_t)); \ + cs_count = size; \ +} while (0) + +#define BEGIN_CB(ptr, size) do { \ + assert(sizeof(*ptr) == sizeof(uint32_t)); \ + cs_ptr = ptr; \ + cs_count = size; \ +} while (0) + +#define END_CB do { \ + if (cs_count != 0) \ + debug_printf("r300: Warning: cs_count off by %d at (%s, %s:%i)\n", \ + cs_count, __FUNCTION__, __FILE__, __LINE__); \ +} while (0) + + +/** + * Storing pure DWORDs. + */ + +#define OUT_CB(value) do { \ + *cs_ptr = (value); \ + cs_ptr++; \ + cs_count--; \ +} while (0) + +#define OUT_CB_TABLE(values, count) do { \ + memcpy(cs_ptr, values, count * sizeof(uint32_t)); \ + cs_ptr += count; \ + cs_count -= count; \ +} while (0) + +#define OUT_CB_32F(value) \ + OUT_CB(fui(value)); + +#define OUT_CB_REG(register, value) do { \ + assert(register); \ + OUT_CB(CP_PACKET0(register, 0)); \ + OUT_CB(value); \ +} while (0) + +/* Note: This expects count to be the number of registers, + * not the actual packet0 count! */ +#define OUT_CB_REG_SEQ(register, count) do { \ + assert(register); \ + OUT_CB(CP_PACKET0(register, (count) - 1)); \ +} while (0) + +#define OUT_CB_ONE_REG(register, count) do { \ + assert(register); \ + OUT_CB(CP_PACKET0(register, (count) - 1) | RADEON_ONE_REG_WR); \ +} while (0) + +#define OUT_CB_PKT3(op, count) \ + OUT_CB(CP_PACKET3(op, count)) + +#endif /* R300_CB_H */ diff --git a/src/gallium/drivers/r300/r300_cs.h b/src/gallium/drivers/r300/r300_cs.h index 1cdd4b82ca..1649766989 100644 --- a/src/gallium/drivers/r300/r300_cs.h +++ b/src/gallium/drivers/r300/r300_cs.h @@ -56,6 +56,7 @@ if (cs_count != 0) \ debug_printf("r300: Warning: cs_count off by %d\n", cs_count); \ cs_winsys->end_cs(cs_winsys, __FILE__, __FUNCTION__, __LINE__); \ + cs_count = 0; \ } while (0) @@ -137,4 +138,15 @@ cs_count -= 4; \ } while (0) + +/** + * Command buffer emission. + */ + +/* It's recommended not to call begin_cs/end_cs before/after this macro. */ +#define WRITE_CS_TABLE(values, count) do { \ + assert(cs_count == 0); \ + cs_winsys->write_cs_table(cs_winsys, values, count); \ +} while (0) + #endif /* R300_CS_H */ |