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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_screen.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_screen.c367
1 files changed, 367 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
new file mode 100644
index 0000000000..6432cea862
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -0,0 +1,367 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
+ *
+ **************************************************************************/
+
+
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_cpu_detect.h"
+#include "util/u_format.h"
+#include "util/u_format_s3tc.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+
+#include "gallivm/lp_bld_limits.h"
+#include "lp_texture.h"
+#include "lp_fence.h"
+#include "lp_jit.h"
+#include "lp_screen.h"
+#include "lp_context.h"
+#include "lp_debug.h"
+#include "lp_public.h"
+#include "lp_limits.h"
+
+#include "state_tracker/sw_winsys.h"
+
+#ifdef DEBUG
+int LP_DEBUG = 0;
+
+static const struct debug_named_value lp_debug_flags[] = {
+ { "pipe", DEBUG_PIPE, NULL },
+ { "tgsi", DEBUG_TGSI, NULL },
+ { "tex", DEBUG_TEX, NULL },
+ { "setup", DEBUG_SETUP, NULL },
+ { "rast", DEBUG_RAST, NULL },
+ { "query", DEBUG_QUERY, NULL },
+ { "screen", DEBUG_SCREEN, NULL },
+ { "show_tiles", DEBUG_SHOW_TILES, NULL },
+ { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL },
+ { "counters", DEBUG_COUNTERS, NULL },
+ DEBUG_NAMED_VALUE_END
+};
+#endif
+
+
+static const char *
+llvmpipe_get_vendor(struct pipe_screen *screen)
+{
+ return "VMware, Inc.";
+}
+
+
+static const char *
+llvmpipe_get_name(struct pipe_screen *screen)
+{
+ return "llvmpipe";
+}
+
+
+static int
+llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
+{
+ switch (param) {
+ case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
+ return PIPE_MAX_SAMPLERS;
+ case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
+ return 0;
+ case PIPE_CAP_MAX_COMBINED_SAMPLERS:
+ return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS;
+ case PIPE_CAP_NPOT_TEXTURES:
+ return 1;
+ case PIPE_CAP_TWO_SIDED_STENCIL:
+ return 1;
+ case PIPE_CAP_GLSL:
+ return 1;
+ case PIPE_CAP_SM3:
+ return 1;
+ case PIPE_CAP_ANISOTROPIC_FILTER:
+ return 0;
+ case PIPE_CAP_POINT_SPRITE:
+ return 1;
+ case PIPE_CAP_MAX_RENDER_TARGETS:
+ return PIPE_MAX_COLOR_BUFS;
+ case PIPE_CAP_OCCLUSION_QUERY:
+ return 1;
+ case PIPE_CAP_TIMER_QUERY:
+ return 0;
+ case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
+ return 1;
+ case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
+ return 1;
+ case PIPE_CAP_TEXTURE_SHADOW_MAP:
+ return 1;
+ case PIPE_CAP_TEXTURE_SWIZZLE:
+ return 1;
+ case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+ return LP_MAX_TEXTURE_2D_LEVELS;
+ case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+ return LP_MAX_TEXTURE_3D_LEVELS;
+ case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+ return LP_MAX_TEXTURE_2D_LEVELS;
+ case PIPE_CAP_TGSI_CONT_SUPPORTED:
+ return 1;
+ case PIPE_CAP_BLEND_EQUATION_SEPARATE:
+ return 1;
+ case PIPE_CAP_INDEP_BLEND_ENABLE:
+ return 1;
+ case PIPE_CAP_INDEP_BLEND_FUNC:
+ return 0;
+ case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
+ case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
+ return 1;
+ case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
+ case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
+ return 0;
+ case PIPE_CAP_MAX_VS_INSTRUCTIONS:
+ case PIPE_CAP_MAX_FS_INSTRUCTIONS:
+ case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS:
+ case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS:
+ case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
+ case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
+ case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
+ case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
+ /* There is no limit in number of instructions beyond available memory */
+ return 32768;
+ case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
+ case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
+ return LP_MAX_TGSI_NESTING;
+ case PIPE_CAP_MAX_VS_INPUTS:
+ case PIPE_CAP_MAX_FS_INPUTS:
+ return PIPE_MAX_ATTRIBS;
+ case PIPE_CAP_MAX_FS_CONSTS:
+ case PIPE_CAP_MAX_VS_CONSTS:
+ /* There is no limit in number of constants beyond available memory */
+ return 32768;
+ case PIPE_CAP_MAX_VS_TEMPS:
+ case PIPE_CAP_MAX_FS_TEMPS:
+ return LP_MAX_TGSI_TEMPS;
+ case PIPE_CAP_MAX_VS_ADDRS:
+ case PIPE_CAP_MAX_FS_ADDRS:
+ return LP_MAX_TGSI_ADDRS;
+ case PIPE_CAP_MAX_VS_PREDS:
+ case PIPE_CAP_MAX_FS_PREDS:
+ return LP_MAX_TGSI_PREDS;
+ case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
+ return 1;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
+
+static float
+llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
+{
+ switch (param) {
+ case PIPE_CAP_MAX_LINE_WIDTH:
+ /* fall-through */
+ case PIPE_CAP_MAX_LINE_WIDTH_AA:
+ return 255.0; /* arbitrary */
+ case PIPE_CAP_MAX_POINT_WIDTH:
+ /* fall-through */
+ case PIPE_CAP_MAX_POINT_WIDTH_AA:
+ return 255.0; /* arbitrary */
+ case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
+ return 16.0; /* not actually signficant at this time */
+ case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
+ return 16.0; /* arbitrary */
+ case PIPE_CAP_GUARD_BAND_LEFT:
+ case PIPE_CAP_GUARD_BAND_TOP:
+ case PIPE_CAP_GUARD_BAND_RIGHT:
+ case PIPE_CAP_GUARD_BAND_BOTTOM:
+ return 0.0;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
+
+/**
+ * Query format support for creating a texture, drawing surface, etc.
+ * \param format the format to test
+ * \param type one of PIPE_TEXTURE, PIPE_SURFACE
+ */
+static boolean
+llvmpipe_is_format_supported( struct pipe_screen *_screen,
+ enum pipe_format format,
+ enum pipe_texture_target target,
+ unsigned sample_count,
+ unsigned bind,
+ unsigned geom_flags )
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
+ struct sw_winsys *winsys = screen->winsys;
+ const struct util_format_description *format_desc;
+
+ format_desc = util_format_description(format);
+ if (!format_desc)
+ return FALSE;
+
+ assert(target == PIPE_BUFFER ||
+ target == PIPE_TEXTURE_1D ||
+ target == PIPE_TEXTURE_2D ||
+ target == PIPE_TEXTURE_3D ||
+ target == PIPE_TEXTURE_CUBE);
+
+ if (sample_count > 1)
+ return FALSE;
+
+ if (bind & PIPE_BIND_RENDER_TARGET) {
+ if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
+ return FALSE;
+
+ if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
+ return FALSE;
+
+ if (format_desc->block.width != 1 ||
+ format_desc->block.height != 1)
+ return FALSE;
+ }
+
+ if (bind & PIPE_BIND_DISPLAY_TARGET) {
+ if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
+ return FALSE;
+ }
+
+ if (bind & PIPE_BIND_DEPTH_STENCIL) {
+ if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
+ return FALSE;
+
+ if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
+ return FALSE;
+
+ /* FIXME: Temporary restriction. See lp_state_fs.c. */
+ if (format_desc->block.bits != 32)
+ return FALSE;
+ }
+
+ if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
+ return util_format_s3tc_enabled;
+ }
+
+ /*
+ * Everything else should be supported by u_format.
+ */
+ return TRUE;
+}
+
+
+
+
+static void
+llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
+ struct pipe_surface *surface,
+ void *context_private)
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
+ struct sw_winsys *winsys = screen->winsys;
+ struct llvmpipe_resource *texture = llvmpipe_resource(surface->texture);
+
+ assert(texture->dt);
+ if (texture->dt)
+ winsys->displaytarget_display(winsys, texture->dt, context_private);
+}
+
+
+static void
+llvmpipe_destroy_screen( struct pipe_screen *_screen )
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
+ struct sw_winsys *winsys = screen->winsys;
+
+ lp_jit_screen_cleanup(screen);
+
+ if(winsys->destroy)
+ winsys->destroy(winsys);
+
+ FREE(screen);
+}
+
+
+
+/**
+ * Create a new pipe_screen object
+ * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
+ */
+struct pipe_screen *
+llvmpipe_create_screen(struct sw_winsys *winsys)
+{
+ struct llvmpipe_screen *screen;
+
+#ifdef PIPE_ARCH_X86
+ /* require SSE2 due to LLVM PR6960. */
+ util_cpu_detect();
+ if (!util_cpu_caps.has_sse2)
+ return NULL;
+#endif
+
+ screen = CALLOC_STRUCT(llvmpipe_screen);
+
+#ifdef DEBUG
+ LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
+#endif
+
+ if (!screen)
+ return NULL;
+
+ screen->winsys = winsys;
+
+ screen->base.destroy = llvmpipe_destroy_screen;
+
+ screen->base.get_name = llvmpipe_get_name;
+ screen->base.get_vendor = llvmpipe_get_vendor;
+ screen->base.get_param = llvmpipe_get_param;
+ screen->base.get_paramf = llvmpipe_get_paramf;
+ screen->base.is_format_supported = llvmpipe_is_format_supported;
+
+ screen->base.context_create = llvmpipe_create_context;
+ screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
+
+ llvmpipe_init_screen_resource_funcs(&screen->base);
+ llvmpipe_init_screen_fence_funcs(&screen->base);
+
+ lp_jit_screen_init(screen);
+
+#ifdef PIPE_OS_WINDOWS
+ /* Multithreading not supported on windows until conditions and barriers are
+ * properly implemented. */
+ screen->num_threads = 0;
+#else
+#ifdef PIPE_OS_EMBEDDED
+ screen->num_threads = 0;
+#else
+ screen->num_threads = util_cpu_caps.nr_cpus;
+#endif
+ screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
+ screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
+#endif
+
+ util_format_s3tc_init();
+
+ return &screen->base;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-10 16:28:41 +0000