int main( int argc, char *argv[] )
{
- glutInit( &argc, argv );
glutInitWindowSize(WinWidth, WinHeight);
+ glutInit( &argc, argv );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
- glutCreateWindow(argv[0] );
+ Win = glutCreateWindow(argv[0] );
glewInit();
glutReshapeFunc( Reshape );
glutKeyboardFunc( Key );
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+ #include "util/u_format.h"
#include "util/u_surface.h"
lp_state_vertex.c \
lp_state_vs.c \
lp_surface.c \
- lp_tex_cache.c \
lp_tex_sample_llvm.c \
lp_texture.c \
- lp_tile_cache.c \
lp_tile_soa.c
+ CPP_SOURCES = \
+ lp_bld_misc.cpp
+
include ../../Makefile.template
lp_tile_soa.c: lp_tile_soa.py ../../auxiliary/util/u_format_parse.py ../../auxiliary/util/u_format_access.py ../../auxiliary/util/u_format.csv
'lp_bld_format_soa.c',
'lp_bld_interp.c',
'lp_bld_intr.c',
+ 'lp_bld_logic.c',
+ 'lp_bld_misc.cpp',
+ 'lp_bld_pack.c',
+ 'lp_bld_sample.c',
'lp_bld_sample_soa.c',
'lp_bld_struct.c',
- 'lp_bld_logic.c',
'lp_bld_swizzle.c',
'lp_bld_tgsi_soa.c',
'lp_bld_type.c',
}
- /**
- * Small vector x scale multiplication optimization.
- *
- * TODO: Should be elsewhere.
- */
- static LLVMValueRef
- coeff_multiply(struct lp_build_interp_soa_context *bld,
- LLVMValueRef coeff,
- int step)
- {
- LLVMValueRef factor;
-
- switch(step) {
- case 0:
- return bld->base.zero;
- case 1:
- return coeff;
- case 2:
- return lp_build_add(&bld->base, coeff, coeff);
- default:
- factor = lp_build_const_scalar(bld->base.type, (double)step);
- return lp_build_mul(&bld->base, coeff, factor);
- }
- }
-
-
/**
- * Multiply the dadx and dady with the xstep and ystep respectively.
+ * Emit LLVM code to compute the fragment shader input attribute values.
+ * For example, for a color input, we'll compute red, green, blue and alpha
+ * values for the four pixels in a quad.
+ * Recall that we're operating on 4-element vectors so each arithmetic
+ * operation is operating on the four pixels in a quad.
*/
-static void
-coeffs_update(struct lp_build_interp_soa_context *bld)
-{
- unsigned attrib;
- unsigned chan;
-
- for(attrib = 0; attrib < bld->num_attribs; ++attrib) {
- unsigned mask = bld->mask[attrib];
- unsigned mode = bld->mode[attrib];
- if (mode != TGSI_INTERPOLATE_CONSTANT) {
- for(chan = 0; chan < NUM_CHANNELS; ++chan) {
- if(mask & (1 << chan)) {
- bld->dadx[attrib][chan] = lp_build_mul_imm(&bld->base, bld->dadx[attrib][chan], bld->xstep);
- bld->dady[attrib][chan] = lp_build_mul_imm(&bld->base, bld->dady[attrib][chan], bld->ystep);
- }
- }
- }
- }
-}
-
-
static void
attribs_init(struct lp_build_interp_soa_context *bld)
{
}
- lp_build_int32_vec4_type()
+/**
+ * Build int32[4] vector type
+ */
+LLVMTypeRef
++lp_build_int32_vec4_type(void)
+{
+ struct lp_type t;
+ LLVMTypeRef type;
+
+ memset(&t, 0, sizeof(t));
+ t.floating = FALSE; /* floating point values */
+ t.sign = TRUE; /* values are signed */
+ t.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
+ t.width = 32; /* 32-bit int */
+ t.length = 4; /* 4 elements per vector */
+
+ type = lp_build_int_elem_type(t);
+ return LLVMVectorType(type, t.length);
+}
+
+
struct lp_type
lp_int_type(struct lp_type type)
{
pipe_texture_reference(&llvmpipe->texture[i], NULL);
}
- lp_destroy_tex_tile_cache(llvmpipe->vertex_tex_cache[i]);
+ for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
+ pipe_texture_reference(&llvmpipe->vertex_textures[i], NULL);
+ }
+
for (i = 0; i < Elements(llvmpipe->constants); i++) {
if (llvmpipe->constants[i].buffer) {
pipe_buffer_reference(&llvmpipe->constants[i].buffer, NULL);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
- return TRUE;
+ /*
+ * TODO: Flush only when a user vertex/index buffer is present
+ * (or even better, modify draw module to do this
+ * internally when this condition is seen?)
+ */
+ draw_flush(draw);
-
- /* Note: leave drawing surfaces mapped */
-
- lp->dirty_render_cache = TRUE;
}
--- /dev/null
- if (pipe_reference((struct pipe_reference**)ptr, &f->reference)) {
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * 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 VMWARE 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 "pipe/p_screen.h"
+#include "util/u_memory.h"
+#include "lp_fence.h"
+
+
+struct lp_fence *
+lp_fence_create(unsigned rank)
+{
+ struct lp_fence *fence = CALLOC_STRUCT(lp_fence);
+
+ pipe_reference_init(&fence->reference, 1);
+
+ pipe_mutex_init(fence->mutex);
+ pipe_condvar_init(fence->signalled);
+
+ fence->rank = rank;
+
+ return fence;
+}
+
+
+static void
+lp_fence_destroy(struct lp_fence *fence)
+{
+ pipe_mutex_destroy(fence->mutex);
+ pipe_condvar_destroy(fence->signalled);
+ FREE(fence);
+}
+
+
+static void
+llvmpipe_fence_reference(struct pipe_screen *screen,
+ struct pipe_fence_handle **ptr,
+ struct pipe_fence_handle *fence)
+{
+ struct lp_fence *old = (struct lp_fence *) *ptr;
+ struct lp_fence *f = (struct lp_fence *) fence;
+
++ if (pipe_reference(&old->reference, &f->reference)) {
+ lp_fence_destroy(old);
+ }
+}
+
+
+static int
+llvmpipe_fence_signalled(struct pipe_screen *screen,
+ struct pipe_fence_handle *fence,
+ unsigned flag)
+{
+ struct lp_fence *f = (struct lp_fence *) fence;
+
+ return f->count == f->rank;
+}
+
+
+static int
+llvmpipe_fence_finish(struct pipe_screen *screen,
+ struct pipe_fence_handle *fence_handle,
+ unsigned flag)
+{
+ struct lp_fence *fence = (struct lp_fence *) fence_handle;
+
+ pipe_mutex_lock(fence->mutex);
+ while (fence->count < fence->rank) {
+ pipe_condvar_wait(fence->signalled, fence->mutex);
+ }
+ pipe_mutex_unlock(fence->mutex);
+
+ return 0;
+}
+
+
+
+
+void
+llvmpipe_init_screen_fence_funcs(struct pipe_screen *screen)
+{
+ screen->fence_reference = llvmpipe_fence_reference;
+ screen->fence_signalled = llvmpipe_fence_signalled;
+ screen->fence_finish = llvmpipe_fence_finish;
+}
const void *a0,
const void *dadx,
const void *dady,
- uint32_t *mask,
void *color,
- void *depth);
+ void *depth,
+ const int32_t c1,
+ const int32_t c2,
+ const int32_t c3,
+ const int32_t *step1,
+ const int32_t *step2,
+ const int32_t *step3);
+
-
void
lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
--- /dev/null
- lp_tile_read_4ub(rast->cbuf_transfer->format,
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * 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 VMWARE 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 <limits.h>
+#include "util/u_memory.h"
+#include "util/u_math.h"
+#include "util/u_cpu_detect.h"
+#include "util/u_surface.h"
+
+#include "lp_scene_queue.h"
+#include "lp_debug.h"
+#include "lp_fence.h"
+#include "lp_rast.h"
+#include "lp_rast_priv.h"
+#include "lp_tile_soa.h"
+#include "lp_bld_debug.h"
+#include "lp_scene.h"
+
+
+/**
+ * Begin the rasterization phase.
+ * Map the framebuffer surfaces. Initialize the 'rast' state.
+ */
+static boolean
+lp_rast_begin( struct lp_rasterizer *rast,
+ const struct pipe_framebuffer_state *fb,
+ boolean write_color,
+ boolean write_zstencil )
+{
+ struct pipe_screen *screen = rast->screen;
+ struct pipe_surface *cbuf, *zsbuf;
+
+ LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
+
+ util_copy_framebuffer_state(&rast->state.fb, fb);
+
+ rast->state.write_zstencil = write_zstencil;
+ rast->state.write_color = write_color;
+
+ rast->check_for_clipped_tiles = (fb->width % TILE_SIZE != 0 ||
+ fb->height % TILE_SIZE != 0);
+
+ /* XXX support multiple color buffers here */
+ cbuf = rast->state.fb.cbufs[0];
+ if (cbuf) {
+ rast->cbuf_transfer = screen->get_tex_transfer(rast->screen,
+ cbuf->texture,
+ cbuf->face,
+ cbuf->level,
+ cbuf->zslice,
+ PIPE_TRANSFER_READ_WRITE,
+ 0, 0,
+ fb->width, fb->height);
+ if (!rast->cbuf_transfer)
+ return FALSE;
+
+ rast->cbuf_map = screen->transfer_map(rast->screen,
+ rast->cbuf_transfer);
+ if (!rast->cbuf_map)
+ return FALSE;
+ }
+
+ zsbuf = rast->state.fb.zsbuf;
+ if (zsbuf) {
+ rast->zsbuf_transfer = screen->get_tex_transfer(rast->screen,
+ zsbuf->texture,
+ zsbuf->face,
+ zsbuf->level,
+ zsbuf->zslice,
+ PIPE_TRANSFER_READ_WRITE,
+ 0, 0,
+ fb->width, fb->height);
+ if (!rast->zsbuf_transfer)
+ return FALSE;
+
+ rast->zsbuf_map = screen->transfer_map(rast->screen,
+ rast->zsbuf_transfer);
+ if (!rast->zsbuf_map)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+/**
+ * Finish the rasterization phase.
+ * Unmap framebuffer surfaces.
+ */
+static void
+lp_rast_end( struct lp_rasterizer *rast )
+{
+ struct pipe_screen *screen = rast->screen;
+
+ if (rast->cbuf_map)
+ screen->transfer_unmap(screen, rast->cbuf_transfer);
+
+ if (rast->zsbuf_map)
+ screen->transfer_unmap(screen, rast->zsbuf_transfer);
+
+ if (rast->cbuf_transfer)
+ screen->tex_transfer_destroy(rast->cbuf_transfer);
+
+ if (rast->zsbuf_transfer)
+ screen->tex_transfer_destroy(rast->zsbuf_transfer);
+
+ rast->cbuf_transfer = NULL;
+ rast->zsbuf_transfer = NULL;
+ rast->cbuf_map = NULL;
+ rast->zsbuf_map = NULL;
+}
+
+
+/**
+ * Begining rasterization of a tile.
+ * \param x window X position of the tile, in pixels
+ * \param y window Y position of the tile, in pixels
+ */
+static void
+lp_rast_start_tile( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ unsigned x, unsigned y )
+{
+ LP_DBG(DEBUG_RAST, "%s %d,%d\n", __FUNCTION__, x, y);
+
+ rast->tasks[thread_index].x = x;
+ rast->tasks[thread_index].y = y;
+}
+
+
+/**
+ * Clear the rasterizer's current color tile.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_clear_color( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg )
+{
+ const uint8_t *clear_color = arg.clear_color;
+ uint8_t *color_tile = rast->tasks[thread_index].tile.color;
+
+ LP_DBG(DEBUG_RAST, "%s 0x%x,0x%x,0x%x,0x%x\n", __FUNCTION__,
+ clear_color[0],
+ clear_color[1],
+ clear_color[2],
+ clear_color[3]);
+
+ if (clear_color[0] == clear_color[1] &&
+ clear_color[1] == clear_color[2] &&
+ clear_color[2] == clear_color[3]) {
+ memset(color_tile, clear_color[0], TILE_SIZE * TILE_SIZE * 4);
+ }
+ else {
+ unsigned x, y, chan;
+ for (y = 0; y < TILE_SIZE; y++)
+ for (x = 0; x < TILE_SIZE; x++)
+ for (chan = 0; chan < 4; ++chan)
+ TILE_PIXEL(color_tile, x, y, chan) = clear_color[chan];
+ }
+}
+
+
+/**
+ * Clear the rasterizer's current z/stencil tile.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_clear_zstencil( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg)
+{
+ unsigned i, j;
+ uint32_t *depth_tile = rast->tasks[thread_index].tile.depth;
+
+ LP_DBG(DEBUG_RAST, "%s 0x%x\n", __FUNCTION__, arg.clear_zstencil);
+
+ for (i = 0; i < TILE_SIZE; i++)
+ for (j = 0; j < TILE_SIZE; j++)
+ depth_tile[i*TILE_SIZE + j] = arg.clear_zstencil;
+}
+
+
+/**
+ * Load tile color from the framebuffer surface.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_load_color( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg)
+{
+ struct lp_rasterizer_task *task = &rast->tasks[thread_index];
+ const unsigned x = task->x;
+ const unsigned y = task->y;
+ int w = TILE_SIZE;
+ int h = TILE_SIZE;
+
+ LP_DBG(DEBUG_RAST, "%s at %u, %u\n", __FUNCTION__, x, y);
+
+ if (x + w > rast->state.fb.width)
+ w -= x + w - rast->state.fb.width;
+
+ if (y + h > rast->state.fb.height)
+ h -= y + h - rast->state.fb.height;
+
+ assert(w >= 0);
+ assert(h >= 0);
+ assert(w <= TILE_SIZE);
+ assert(h <= TILE_SIZE);
+
- lp_tile_write_4ub(rast->cbuf_transfer->format,
++ lp_tile_read_4ub(rast->cbuf_transfer->texture->format,
+ rast->tasks[thread_index].tile.color,
+ rast->cbuf_map,
+ rast->cbuf_transfer->stride,
+ x, y,
+ w, h);
+}
+
+
+/**
+ * Load tile z/stencil from the framebuffer surface.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_load_zstencil( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg )
+{
+ LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
+
+ /* call u_tile func to load depth (and stencil?) from surface */
+}
+
+
+void lp_rast_set_state( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg )
+{
+ const struct lp_rast_state *state = arg.set_state;
+
+ LP_DBG(DEBUG_RAST, "%s %p\n", __FUNCTION__, (void *) state);
+
+ /* just set the current state pointer for this rasterizer */
+ rast->tasks[thread_index].current_state = state;
+}
+
+
+
+/* Within a tile:
+ */
+
+/**
+ * Run the shader on all blocks in a tile. This is used when a tile is
+ * completely contained inside a triangle.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_shade_tile( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg )
+{
+ /* Set c1,c2,c3 to large values so the in/out test always passes */
+ const int32_t c1 = INT_MIN, c2 = INT_MIN, c3 = INT_MIN;
+ const struct lp_rast_shader_inputs *inputs = arg.shade_tile;
+ const unsigned tile_x = rast->tasks[thread_index].x;
+ const unsigned tile_y = rast->tasks[thread_index].y;
+ unsigned x, y;
+
+ LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
+
+ /* Use the existing preference for 4x4 (four quads) shading:
+ */
+ for (y = 0; y < TILE_SIZE; y += 4)
+ for (x = 0; x < TILE_SIZE; x += 4)
+ lp_rast_shade_quads( rast,
+ thread_index,
+ inputs,
+ tile_x + x,
+ tile_y + y,
+ c1, c2, c3);
+}
+
+
+/**
+ * Compute shading for a 4x4 block of pixels.
+ * This is a bin command called during bin processing.
+ */
+void lp_rast_shade_quads( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const struct lp_rast_shader_inputs *inputs,
+ unsigned x, unsigned y,
+ int32_t c1, int32_t c2, int32_t c3)
+{
+ const struct lp_rast_state *state = rast->tasks[thread_index].current_state;
+ struct lp_rast_tile *tile = &rast->tasks[thread_index].tile;
+ void *color;
+ void *depth;
+ unsigned ix, iy;
+ int block_offset;
+
+#ifdef DEBUG
+ assert(state);
+
+ /* Sanity checks */
+ assert(x % TILE_VECTOR_WIDTH == 0);
+ assert(y % TILE_VECTOR_HEIGHT == 0);
+
+ assert((x % 4) == 0);
+ assert((y % 4) == 0);
+#endif
+
+ ix = x % TILE_SIZE;
+ iy = y % TILE_SIZE;
+
+ /* offset of the 16x16 pixel block within the tile */
+ block_offset = ((iy/4)*(16*16) + (ix/4)*16);
+
+ /* color buffer */
+ color = tile->color + 4 * block_offset;
+
+ /* depth buffer */
+ depth = tile->depth + block_offset;
+
+#ifdef DEBUG
+ assert(lp_check_alignment(depth, 16));
+ assert(lp_check_alignment(color, 16));
+ assert(lp_check_alignment(state->jit_context.blend_color, 16));
+
+ assert(lp_check_alignment(inputs->step[0], 16));
+ assert(lp_check_alignment(inputs->step[1], 16));
+ assert(lp_check_alignment(inputs->step[2], 16));
+#endif
+
+ /* run shader */
+ state->jit_function( &state->jit_context,
+ x, y,
+ inputs->a0,
+ inputs->dadx,
+ inputs->dady,
+ color,
+ depth,
+ c1, c2, c3,
+ inputs->step[0], inputs->step[1], inputs->step[2]
+ );
+}
+
+
+/* End of tile:
+ */
+
+
+/**
+ * Write the rasterizer's color tile to the framebuffer.
+ */
+static void lp_rast_store_color( struct lp_rasterizer *rast,
+ unsigned thread_index)
+{
+ const unsigned x = rast->tasks[thread_index].x;
+ const unsigned y = rast->tasks[thread_index].y;
+ int w = TILE_SIZE;
+ int h = TILE_SIZE;
+
+ if (x + w > rast->state.fb.width)
+ w -= x + w - rast->state.fb.width;
+
+ if (y + h > rast->state.fb.height)
+ h -= y + h - rast->state.fb.height;
+
+ assert(w >= 0);
+ assert(h >= 0);
+ assert(w <= TILE_SIZE);
+ assert(h <= TILE_SIZE);
+
+ LP_DBG(DEBUG_RAST, "%s [%u] %d,%d %dx%d\n", __FUNCTION__,
+ thread_index, x, y, w, h);
+
- assert(rast->zsbuf_transfer->format == PIPE_FORMAT_Z32_UNORM);
++ lp_tile_write_4ub(rast->cbuf_transfer->texture->format,
+ rast->tasks[thread_index].tile.color,
+ rast->cbuf_map,
+ rast->cbuf_transfer->stride,
+ x, y,
+ w, h);
+}
+
+
+static void
+lp_tile_write_z32(const uint32_t *src, uint8_t *dst, unsigned dst_stride,
+ unsigned x0, unsigned y0, unsigned w, unsigned h)
+{
+ unsigned x, y;
+ uint8_t *dst_row = dst + y0*dst_stride;
+ for (y = 0; y < h; ++y) {
+ uint32_t *dst_pixel = (uint32_t *)(dst_row + x0*4);
+ for (x = 0; x < w; ++x) {
+ *dst_pixel++ = *src++;
+ }
+ dst_row += dst_stride;
+ }
+}
+
+/**
+ * Write the rasterizer's z/stencil tile to the framebuffer.
+ */
+static void lp_rast_store_zstencil( struct lp_rasterizer *rast,
+ unsigned thread_index )
+{
+ const unsigned x = rast->tasks[thread_index].x;
+ const unsigned y = rast->tasks[thread_index].y;
+ unsigned w = TILE_SIZE;
+ unsigned h = TILE_SIZE;
+
+ if (x + w > rast->state.fb.width)
+ w -= x + w - rast->state.fb.width;
+
+ if (y + h > rast->state.fb.height)
+ h -= y + h - rast->state.fb.height;
+
+ LP_DBG(DEBUG_RAST, "%s %d,%d %dx%d\n", __FUNCTION__, x, y, w, h);
+
++ assert(rast->zsbuf_transfer->texture->format == PIPE_FORMAT_Z32_UNORM);
+ lp_tile_write_z32(rast->tasks[thread_index].tile.depth,
+ rast->zsbuf_map,
+ rast->zsbuf_transfer->stride,
+ x, y, w, h);
+}
+
+
+/**
+ * Write the rasterizer's tiles to the framebuffer.
+ */
+static void
+lp_rast_end_tile( struct lp_rasterizer *rast,
+ unsigned thread_index )
+{
+ LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
+
+ if (rast->state.write_color)
+ lp_rast_store_color(rast, thread_index);
+
+ if (rast->state.write_zstencil)
+ lp_rast_store_zstencil(rast, thread_index);
+}
+
+
+/**
+ * Signal on a fence. This is called during bin execution/rasterization.
+ * Called per thread.
+ */
+void lp_rast_fence( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const union lp_rast_cmd_arg arg )
+{
+ struct lp_fence *fence = arg.fence;
+
+ pipe_mutex_lock( fence->mutex );
+
+ fence->count++;
+ assert(fence->count <= fence->rank);
+
+ LP_DBG(DEBUG_RAST, "%s count=%u rank=%u\n", __FUNCTION__,
+ fence->count, fence->rank);
+
+ pipe_condvar_signal( fence->signalled );
+
+ pipe_mutex_unlock( fence->mutex );
+}
+
+
+/**
+ * When all the threads are done rasterizing a scene, one thread will
+ * call this function to reset the scene and put it onto the empty queue.
+ */
+static void
+release_scene( struct lp_rasterizer *rast,
+ struct lp_scene *scene )
+{
+ util_unreference_framebuffer_state( &scene->fb );
+
+ lp_scene_reset( scene );
+ lp_scene_enqueue( rast->empty_scenes, scene );
+ rast->curr_scene = NULL;
+}
+
+
+/**
+ * Rasterize commands for a single bin.
+ * \param x, y position of the bin's tile in the framebuffer
+ * Must be called between lp_rast_begin() and lp_rast_end().
+ * Called per thread.
+ */
+static void
+rasterize_bin( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ const struct cmd_bin *bin,
+ int x, int y)
+{
+ const struct cmd_block_list *commands = &bin->commands;
+ struct cmd_block *block;
+ unsigned k;
+
+ lp_rast_start_tile( rast, thread_index, x, y );
+
+ /* simply execute each of the commands in the block list */
+ for (block = commands->head; block; block = block->next) {
+ for (k = 0; k < block->count; k++) {
+ block->cmd[k]( rast, thread_index, block->arg[k] );
+ }
+ }
+
+ lp_rast_end_tile( rast, thread_index );
+}
+
+
+/**
+ * Rasterize/execute all bins within a scene.
+ * Called per thread.
+ */
+static void
+rasterize_scene( struct lp_rasterizer *rast,
+ unsigned thread_index,
+ struct lp_scene *scene,
+ bool write_depth )
+{
+ /* loop over scene bins, rasterize each */
+#if 0
+ {
+ unsigned i, j;
+ for (i = 0; i < scene->tiles_x; i++) {
+ for (j = 0; j < scene->tiles_y; j++) {
+ struct cmd_bin *bin = lp_get_bin(scene, i, j);
+ rasterize_bin( rast, thread_index,
+ bin, i * TILE_SIZE, j * TILE_SIZE );
+ }
+ }
+ }
+#else
+ {
+ struct cmd_bin *bin;
+ int x, y;
+
+ assert(scene);
+ while ((bin = lp_scene_bin_iter_next(scene, &x, &y))) {
+ rasterize_bin( rast, thread_index, bin, x * TILE_SIZE, y * TILE_SIZE);
+ }
+ }
+#endif
+}
+
+
+/**
+ * Called by setup module when it has something for us to render.
+ */
+void
+lp_rasterize_scene( struct lp_rasterizer *rast,
+ struct lp_scene *scene,
+ const struct pipe_framebuffer_state *fb,
+ bool write_depth )
+{
+ boolean debug = false;
+
+ LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
+
+ if (debug) {
+ unsigned x, y;
+ printf("rasterize scene:\n");
+ printf(" data size: %u\n", lp_scene_data_size(scene));
+ for (y = 0; y < scene->tiles_y; y++) {
+ for (x = 0; x < scene->tiles_x; x++) {
+ printf(" bin %u, %u size: %u\n", x, y,
+ lp_scene_bin_size(scene, x, y));
+ }
+ }
+ }
+
+ /* save framebuffer state in the bin */
+ util_copy_framebuffer_state(&scene->fb, fb);
+ scene->write_depth = write_depth;
+
+ if (rast->num_threads == 0) {
+ /* no threading */
+
+ lp_rast_begin( rast, fb,
+ fb->cbufs[0]!= NULL,
+ fb->zsbuf != NULL && write_depth );
+
+ lp_scene_bin_iter_begin( scene );
+ rasterize_scene( rast, 0, scene, write_depth );
+
+ release_scene( rast, scene );
+
+ lp_rast_end( rast );
+ }
+ else {
+ /* threaded rendering! */
+ unsigned i;
+
+ lp_scene_enqueue( rast->full_scenes, scene );
+
+ /* signal the threads that there's work to do */
+ for (i = 0; i < rast->num_threads; i++) {
+ pipe_semaphore_signal(&rast->tasks[i].work_ready);
+ }
+
+ /* wait for work to complete */
+ for (i = 0; i < rast->num_threads; i++) {
+ pipe_semaphore_wait(&rast->tasks[i].work_done);
+ }
+ }
+
+ LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
+}
+
+
+/**
+ * This is the thread's main entrypoint.
+ * It's a simple loop:
+ * 1. wait for work
+ * 2. do work
+ * 3. signal that we're done
+ */
+static void *
+thread_func( void *init_data )
+{
+ struct lp_rasterizer_task *task = (struct lp_rasterizer_task *) init_data;
+ struct lp_rasterizer *rast = task->rast;
+ boolean debug = false;
+
+ while (1) {
+ /* wait for work */
+ if (debug)
+ debug_printf("thread %d waiting for work\n", task->thread_index);
+ pipe_semaphore_wait(&task->work_ready);
+
+ if (task->thread_index == 0) {
+ /* thread[0]:
+ * - get next scene to rasterize
+ * - map the framebuffer surfaces
+ */
+ const struct pipe_framebuffer_state *fb;
+ boolean write_depth;
+
+ rast->curr_scene = lp_scene_dequeue( rast->full_scenes );
+
+ lp_scene_bin_iter_begin( rast->curr_scene );
+
+ fb = &rast->curr_scene->fb;
+ write_depth = rast->curr_scene->write_depth;
+
+ lp_rast_begin( rast, fb,
+ fb->cbufs[0] != NULL,
+ fb->zsbuf != NULL && write_depth );
+ }
+
+ /* Wait for all threads to get here so that threads[1+] don't
+ * get a null rast->curr_scene pointer.
+ */
+ pipe_barrier_wait( &rast->barrier );
+
+ /* do work */
+ if (debug)
+ debug_printf("thread %d doing work\n", task->thread_index);
+ rasterize_scene(rast,
+ task->thread_index,
+ rast->curr_scene,
+ rast->curr_scene->write_depth);
+
+ /* wait for all threads to finish with this scene */
+ pipe_barrier_wait( &rast->barrier );
+
+ if (task->thread_index == 0) {
+ /* thread[0]:
+ * - release the scene object
+ * - unmap the framebuffer surfaces
+ */
+ release_scene( rast, rast->curr_scene );
+ lp_rast_end( rast );
+ }
+
+ /* signal done with work */
+ if (debug)
+ debug_printf("thread %d done working\n", task->thread_index);
+ pipe_semaphore_signal(&task->work_done);
+ }
+
+ return NULL;
+}
+
+
+/**
+ * Initialize semaphores and spawn the threads.
+ */
+static void
+create_rast_threads(struct lp_rasterizer *rast)
+{
+ unsigned i;
+
+ rast->num_threads = util_cpu_caps.nr_cpus;
+ rast->num_threads = debug_get_num_option("LP_NUM_THREADS", rast->num_threads);
+ rast->num_threads = MIN2(rast->num_threads, MAX_THREADS);
+
+ /* NOTE: if num_threads is zero, we won't use any threads */
+ for (i = 0; i < rast->num_threads; i++) {
+ pipe_semaphore_init(&rast->tasks[i].work_ready, 0);
+ pipe_semaphore_init(&rast->tasks[i].work_done, 0);
+ rast->threads[i] = pipe_thread_create(thread_func,
+ (void *) &rast->tasks[i]);
+ }
+}
+
+
+
+/**
+ * Create new lp_rasterizer.
+ * \param empty the queue to put empty scenes on after we've finished
+ * processing them.
+ */
+struct lp_rasterizer *
+lp_rast_create( struct pipe_screen *screen, struct lp_scene_queue *empty )
+{
+ struct lp_rasterizer *rast;
+ unsigned i;
+
+ rast = CALLOC_STRUCT(lp_rasterizer);
+ if(!rast)
+ return NULL;
+
+ rast->screen = screen;
+
+ rast->empty_scenes = empty;
+ rast->full_scenes = lp_scene_queue_create();
+
+ for (i = 0; i < Elements(rast->tasks); i++) {
+ rast->tasks[i].tile.color = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
+ rast->tasks[i].tile.depth = align_malloc( TILE_SIZE*TILE_SIZE*4, 16 );
+ rast->tasks[i].rast = rast;
+ rast->tasks[i].thread_index = i;
+ }
+
+ create_rast_threads(rast);
+
+ /* for synchronizing rasterization threads */
+ pipe_barrier_init( &rast->barrier, rast->num_threads );
+
+ return rast;
+}
+
+
+/* Shutdown:
+ */
+void lp_rast_destroy( struct lp_rasterizer *rast )
+{
+ unsigned i;
+
+ util_unreference_framebuffer_state(&rast->state.fb);
+
+ for (i = 0; i < Elements(rast->tasks); i++) {
+ align_free(rast->tasks[i].tile.depth);
+ align_free(rast->tasks[i].tile.color);
+ }
+
+ /* for synchronizing rasterization threads */
+ pipe_barrier_destroy( &rast->barrier );
+
+ FREE(rast);
+}
+
+
+/** Return number of rasterization threads */
+unsigned
+lp_rast_get_num_threads( struct lp_rasterizer *rast )
+{
+ return rast->num_threads;
+}
}
-/**
- * Do setup for line rasterization, then render the line.
- * Single-pixel width, no stipple, etc. We rely on the 'draw' module
- * to handle stippling and wide lines.
- */
-void
-llvmpipe_setup_line(struct setup_context *setup,
- const float (*v0)[4],
- const float (*v1)[4])
+void
+lp_setup_set_vertex_info( struct setup_context *setup,
+ struct vertex_info *vertex_info )
{
- int x0 = (int) v0[0][0];
- int x1 = (int) v1[0][0];
- int y0 = (int) v0[0][1];
- int y1 = (int) v1[0][1];
- int dx = x1 - x0;
- int dy = y1 - y0;
- int xstep, ystep;
-
-#if DEBUG_VERTS
- debug_printf("Setup line:\n");
- print_vertex(setup, v0);
- print_vertex(setup, v1);
-#endif
-
- if (setup->llvmpipe->no_rast)
- return;
+ /* XXX: just silently holding onto the pointer:
+ */
+ setup->vertex_info = vertex_info;
+}
- if (dx == 0 && dy == 0)
- return;
- if (!setup_line_coefficients(setup, v0, v1))
- return;
+void
+lp_setup_set_sampler_textures( struct setup_context *setup,
+ unsigned num, struct pipe_texture **texture)
+{
+ struct pipe_texture *dummy;
+ unsigned i;
- assert(v0[0][0] < 1.0e9);
- assert(v0[0][1] < 1.0e9);
- assert(v1[0][0] < 1.0e9);
- assert(v1[0][1] < 1.0e9);
+ LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
- if (dx < 0) {
- dx = -dx; /* make positive */
- xstep = -1;
- }
- else {
- xstep = 1;
- }
- if (dy < 0) {
- dy = -dy; /* make positive */
- ystep = -1;
- }
- else {
- ystep = 1;
- }
+ assert(num <= PIPE_MAX_SAMPLERS);
- assert(dx >= 0);
- assert(dy >= 0);
- assert(setup->llvmpipe->reduced_prim == PIPE_PRIM_LINES);
+ for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
+ struct pipe_texture *tex = i < num ? texture[i] : NULL;
- setup->quad[0].input.x0 = setup->quad[0].input.y0 = -1;
- setup->quad[0].inout.mask = 0x0;
+ /* FIXME: hold on to the reference */
+ dummy = NULL;
+ pipe_texture_reference(&dummy, tex);
- /* XXX temporary: set coverage to 1.0 so the line appears
- * if AA mode happens to be enabled.
- */
- setup->quad[0].input.coverage[0] =
- setup->quad[0].input.coverage[1] =
- setup->quad[0].input.coverage[2] =
- setup->quad[0].input.coverage[3] = 1.0;
-
- if (dx > dy) {
- /*** X-major line ***/
- int i;
- const int errorInc = dy + dy;
- int error = errorInc - dx;
- const int errorDec = error - dx;
-
- for (i = 0; i < dx; i++) {
- plot(setup, x0, y0);
-
- x0 += xstep;
- if (error < 0) {
- error += errorInc;
- }
- else {
- error += errorDec;
- y0 += ystep;
- }
- }
- }
- else {
- /*** Y-major line ***/
- int i;
- const int errorInc = dx + dx;
- int error = errorInc - dy;
- const int errorDec = error - dy;
-
- for (i = 0; i < dy; i++) {
- plot(setup, x0, y0);
-
- y0 += ystep;
- if (error < 0) {
- error += errorInc;
- }
- else {
- error += errorDec;
- x0 += xstep;
- }
+ if(tex) {
+ struct llvmpipe_texture *lp_tex = llvmpipe_texture(tex);
+ struct lp_jit_texture *jit_tex;
+ jit_tex = &setup->fs.current.jit_context.textures[i];
- jit_tex->width = tex->width[0];
- jit_tex->height = tex->height[0];
++ jit_tex->width = tex->width0;
++ jit_tex->height = tex->height0;
+ jit_tex->stride = lp_tex->stride[0];
+ if(!lp_tex->dt)
+ jit_tex->data = lp_tex->data;
+ else
+ /* FIXME: map the rendertarget */
+ assert(0);
}
}
--- /dev/null
- #define MIN3(a,b,c) MIN2(MIN2(a,b),c)
- #define MAX3(a,b,c) MAX2(MAX2(a,b),c)
-
+/**************************************************************************
+ *
+ * Copyright 2007 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.
+ *
+ **************************************************************************/
+
+/*
+ * Binning code for triangles
+ */
+
+#include "lp_setup_context.h"
+#include "lp_rast.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+
+#define NUM_CHANNELS 4
+
+/**
+ * Compute a0 for a constant-valued coefficient (GL_FLAT shading).
+ */
+static void constant_coef( struct lp_rast_triangle *tri,
+ unsigned slot,
+ const float value,
+ unsigned i )
+{
+ tri->inputs.a0[slot][i] = value;
+ tri->inputs.dadx[slot][i] = 0;
+ tri->inputs.dady[slot][i] = 0;
+}
+
+/**
+ * Compute a0, dadx and dady for a linearly interpolated coefficient,
+ * for a triangle.
+ */
+static void linear_coef( struct lp_rast_triangle *tri,
+ float oneoverarea,
+ unsigned slot,
+ const float (*v1)[4],
+ const float (*v2)[4],
+ const float (*v3)[4],
+ unsigned vert_attr,
+ unsigned i)
+{
+ float a1 = v1[vert_attr][i];
+ float a2 = v2[vert_attr][i];
+ float a3 = v3[vert_attr][i];
+
+ float da12 = a1 - a2;
+ float da31 = a3 - a1;
+ float dadx = (da12 * tri->dy31 - tri->dy12 * da31) * oneoverarea;
+ float dady = (da31 * tri->dx12 - tri->dx31 * da12) * oneoverarea;
+
+ tri->inputs.dadx[slot][i] = dadx;
+ tri->inputs.dady[slot][i] = dady;
+
+ /* calculate a0 as the value which would be sampled for the
+ * fragment at (0,0), taking into account that we want to sample at
+ * pixel centers, in other words (0.5, 0.5).
+ *
+ * this is neat but unfortunately not a good way to do things for
+ * triangles with very large values of dadx or dady as it will
+ * result in the subtraction and re-addition from a0 of a very
+ * large number, which means we'll end up loosing a lot of the
+ * fractional bits and precision from a0. the way to fix this is
+ * to define a0 as the sample at a pixel center somewhere near vmin
+ * instead - i'll switch to this later.
+ */
+ tri->inputs.a0[slot][i] = (v1[vert_attr][i] -
+ (dadx * (v1[0][0] - 0.5f) +
+ dady * (v1[0][1] - 0.5f)));
+}
+
+
+/**
+ * Compute a0, dadx and dady for a perspective-corrected interpolant,
+ * for a triangle.
+ * We basically multiply the vertex value by 1/w before computing
+ * the plane coefficients (a0, dadx, dady).
+ * Later, when we compute the value at a particular fragment position we'll
+ * divide the interpolated value by the interpolated W at that fragment.
+ */
+static void perspective_coef( struct lp_rast_triangle *tri,
+ float oneoverarea,
+ unsigned slot,
+ const float (*v1)[4],
+ const float (*v2)[4],
+ const float (*v3)[4],
+ unsigned vert_attr,
+ unsigned i)
+{
+ /* premultiply by 1/w (v[0][3] is always 1/w):
+ */
+ float a1 = v1[vert_attr][i] * v1[0][3];
+ float a2 = v2[vert_attr][i] * v2[0][3];
+ float a3 = v3[vert_attr][i] * v3[0][3];
+ float da12 = a1 - a2;
+ float da31 = a3 - a1;
+ float dadx = (da12 * tri->dy31 - tri->dy12 * da31) * oneoverarea;
+ float dady = (da31 * tri->dx12 - tri->dx31 * da12) * oneoverarea;
+
+ tri->inputs.dadx[slot][i] = dadx;
+ tri->inputs.dady[slot][i] = dady;
+ tri->inputs.a0[slot][i] = (a1 -
+ (dadx * (v1[0][0] - 0.5f) +
+ dady * (v1[0][1] - 0.5f)));
+}
+
+
+/**
+ * Special coefficient setup for gl_FragCoord.
+ * X and Y are trivial, though Y has to be inverted for OpenGL.
+ * Z and W are copied from position_coef which should have already been computed.
+ * We could do a bit less work if we'd examine gl_FragCoord's swizzle mask.
+ */
+static void
+setup_fragcoord_coef(struct lp_rast_triangle *tri,
+ float oneoverarea,
+ unsigned slot,
+ const float (*v1)[4],
+ const float (*v2)[4],
+ const float (*v3)[4])
+{
+ /*X*/
+ tri->inputs.a0[slot][0] = 0.0;
+ tri->inputs.dadx[slot][0] = 1.0;
+ tri->inputs.dady[slot][0] = 0.0;
+ /*Y*/
+ tri->inputs.a0[slot][1] = 0.0;
+ tri->inputs.dadx[slot][1] = 0.0;
+ tri->inputs.dady[slot][1] = 1.0;
+ /*Z*/
+ linear_coef(tri, oneoverarea, slot, v1, v2, v3, 0, 2);
+ /*W*/
+ linear_coef(tri, oneoverarea, slot, v1, v2, v3, 0, 3);
+}
+
+
+static void setup_facing_coef( struct lp_rast_triangle *tri,
+ unsigned slot,
+ boolean frontface )
+{
+ constant_coef( tri, slot, 1.0f - frontface, 0 );
+ constant_coef( tri, slot, 0.0f, 1 ); /* wasted */
+ constant_coef( tri, slot, 0.0f, 2 ); /* wasted */
+ constant_coef( tri, slot, 0.0f, 3 ); /* wasted */
+}
+
+
+/**
+ * Compute the tri->coef[] array dadx, dady, a0 values.
+ */
+static void setup_tri_coefficients( struct setup_context *setup,
+ struct lp_rast_triangle *tri,
+ float oneoverarea,
+ const float (*v1)[4],
+ const float (*v2)[4],
+ const float (*v3)[4],
+ boolean frontface)
+{
+ struct lp_scene *scene = lp_setup_get_current_scene(setup);
+ unsigned slot;
+
+ /* Allocate space for the a0, dadx and dady arrays
+ */
+ {
+ unsigned bytes;
+ bytes = (setup->fs.nr_inputs + 1) * 4 * sizeof(float);
+ tri->inputs.a0 = lp_scene_alloc_aligned( scene, bytes, 16 );
+ tri->inputs.dadx = lp_scene_alloc_aligned( scene, bytes, 16 );
+ tri->inputs.dady = lp_scene_alloc_aligned( scene, bytes, 16 );
+ }
+
+ /* The internal position input is in slot zero:
+ */
+ setup_fragcoord_coef(tri, oneoverarea, 0, v1, v2, v3);
+
+ /* setup interpolation for all the remaining attributes:
+ */
+ for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
+ unsigned vert_attr = setup->fs.input[slot].src_index;
+ unsigned i;
+
+ switch (setup->fs.input[slot].interp) {
+ case LP_INTERP_CONSTANT:
+ for (i = 0; i < NUM_CHANNELS; i++)
+ constant_coef(tri, slot+1, v3[vert_attr][i], i);
+ break;
+
+ case LP_INTERP_LINEAR:
+ for (i = 0; i < NUM_CHANNELS; i++)
+ linear_coef(tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i);
+ break;
+
+ case LP_INTERP_PERSPECTIVE:
+ for (i = 0; i < NUM_CHANNELS; i++)
+ perspective_coef(tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i);
+ break;
+
+ case LP_INTERP_POSITION:
+ /* XXX: fix me - duplicates the values in slot zero.
+ */
+ setup_fragcoord_coef(tri, oneoverarea, slot+1, v1, v2, v3);
+ break;
+
+ case LP_INTERP_FACING:
+ setup_facing_coef(tri, slot+1, frontface);
+ break;
+
+ default:
+ assert(0);
+ }
+ }
+}
+
+
+
+static inline int subpixel_snap( float a )
+{
+ return util_iround(FIXED_ONE * a);
+}
+
+
+/**
+ * Do basic setup for triangle rasterization and determine which
+ * framebuffer tiles are touched. Put the triangle in the scene's
+ * bins for the tiles which we overlap.
+ */
+static void
+do_triangle_ccw(struct setup_context *setup,
+ const float (*v1)[4],
+ const float (*v2)[4],
+ const float (*v3)[4],
+ boolean frontfacing )
+{
+ /* x/y positions in fixed point */
+ const int x1 = subpixel_snap(v1[0][0]);
+ const int x2 = subpixel_snap(v2[0][0]);
+ const int x3 = subpixel_snap(v3[0][0]);
+ const int y1 = subpixel_snap(v1[0][1]);
+ const int y2 = subpixel_snap(v2[0][1]);
+ const int y3 = subpixel_snap(v3[0][1]);
+
+ struct lp_scene *scene = lp_setup_get_current_scene(setup);
+ struct lp_rast_triangle *tri = lp_scene_alloc_aligned( scene, sizeof *tri, 16 );
+ float area, oneoverarea;
+ int minx, maxx, miny, maxy;
+
+ tri->dx12 = x1 - x2;
+ tri->dx23 = x2 - x3;
+ tri->dx31 = x3 - x1;
+
+ tri->dy12 = y1 - y2;
+ tri->dy23 = y2 - y3;
+ tri->dy31 = y3 - y1;
+
+ area = (tri->dx12 * tri->dy31 -
+ tri->dx31 * tri->dy12);
+
+ /* Cull non-ccw and zero-sized triangles.
+ *
+ * XXX: subject to overflow??
+ */
+ if (area <= 0) {
+ lp_scene_putback_data( scene, sizeof *tri );
+ return;
+ }
+
+ /* Bounding rectangle (in pixels) */
+ tri->minx = (MIN3(x1, x2, x3) + 0xf) >> FIXED_ORDER;
+ tri->maxx = (MAX3(x1, x2, x3) + 0xf) >> FIXED_ORDER;
+ tri->miny = (MIN3(y1, y2, y3) + 0xf) >> FIXED_ORDER;
+ tri->maxy = (MAX3(y1, y2, y3) + 0xf) >> FIXED_ORDER;
+
+ if (tri->miny == tri->maxy ||
+ tri->minx == tri->maxx) {
+ lp_scene_putback_data( scene, sizeof *tri );
+ return;
+ }
+
+ /*
+ */
+ oneoverarea = ((float)FIXED_ONE) / (float)area;
+
+ /* Setup parameter interpolants:
+ */
+ setup_tri_coefficients( setup, tri, oneoverarea, v1, v2, v3, frontfacing );
+
+ /* half-edge constants, will be interated over the whole
+ * rendertarget.
+ */
+ tri->c1 = tri->dy12 * x1 - tri->dx12 * y1;
+ tri->c2 = tri->dy23 * x2 - tri->dx23 * y2;
+ tri->c3 = tri->dy31 * x3 - tri->dx31 * y3;
+
+ /* correct for top-left fill convention:
+ */
+ if (tri->dy12 < 0 || (tri->dy12 == 0 && tri->dx12 > 0)) tri->c1++;
+ if (tri->dy23 < 0 || (tri->dy23 == 0 && tri->dx23 > 0)) tri->c2++;
+ if (tri->dy31 < 0 || (tri->dy31 == 0 && tri->dx31 > 0)) tri->c3++;
+
+ tri->dy12 *= FIXED_ONE;
+ tri->dy23 *= FIXED_ONE;
+ tri->dy31 *= FIXED_ONE;
+
+ tri->dx12 *= FIXED_ONE;
+ tri->dx23 *= FIXED_ONE;
+ tri->dx31 *= FIXED_ONE;
+
+ /* find trivial reject offsets for each edge for a single-pixel
+ * sized block. These will be scaled up at each recursive level to
+ * match the active blocksize. Scaling in this way works best if
+ * the blocks are square.
+ */
+ tri->eo1 = 0;
+ if (tri->dy12 < 0) tri->eo1 -= tri->dy12;
+ if (tri->dx12 > 0) tri->eo1 += tri->dx12;
+
+ tri->eo2 = 0;
+ if (tri->dy23 < 0) tri->eo2 -= tri->dy23;
+ if (tri->dx23 > 0) tri->eo2 += tri->dx23;
+
+ tri->eo3 = 0;
+ if (tri->dy31 < 0) tri->eo3 -= tri->dy31;
+ if (tri->dx31 > 0) tri->eo3 += tri->dx31;
+
+ /* Calculate trivial accept offsets from the above.
+ */
+ tri->ei1 = tri->dx12 - tri->dy12 - tri->eo1;
+ tri->ei2 = tri->dx23 - tri->dy23 - tri->eo2;
+ tri->ei3 = tri->dx31 - tri->dy31 - tri->eo3;
+
+ {
+ const int xstep1 = -tri->dy12;
+ const int xstep2 = -tri->dy23;
+ const int xstep3 = -tri->dy31;
+
+ const int ystep1 = tri->dx12;
+ const int ystep2 = tri->dx23;
+ const int ystep3 = tri->dx31;
+
+ int qx, qy, ix, iy;
+ int i = 0;
+
+ for (qy = 0; qy < 2; qy++) {
+ for (qx = 0; qx < 2; qx++) {
+ for (iy = 0; iy < 2; iy++) {
+ for (ix = 0; ix < 2; ix++, i++) {
+ int x = qx * 2 + ix;
+ int y = qy * 2 + iy;
+ tri->inputs.step[0][i] = x * xstep1 + y * ystep1;
+ tri->inputs.step[1][i] = x * xstep2 + y * ystep2;
+ tri->inputs.step[2][i] = x * xstep3 + y * ystep3;
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * All fields of 'tri' are now set. The remaining code here is
+ * concerned with binning.
+ */
+
+ /* Convert to tile coordinates:
+ */
+ minx = tri->minx / TILE_SIZE;
+ miny = tri->miny / TILE_SIZE;
+ maxx = tri->maxx / TILE_SIZE;
+ maxy = tri->maxy / TILE_SIZE;
+
+ /* Determine which tile(s) intersect the triangle's bounding box
+ */
+ if (miny == maxy && minx == maxx)
+ {
+ /* Triangle is contained in a single tile:
+ */
+ lp_scene_bin_command( scene, minx, miny, lp_rast_triangle,
+ lp_rast_arg_triangle(tri) );
+ }
+ else
+ {
+ int c1 = (tri->c1 +
+ tri->dx12 * miny * TILE_SIZE -
+ tri->dy12 * minx * TILE_SIZE);
+ int c2 = (tri->c2 +
+ tri->dx23 * miny * TILE_SIZE -
+ tri->dy23 * minx * TILE_SIZE);
+ int c3 = (tri->c3 +
+ tri->dx31 * miny * TILE_SIZE -
+ tri->dy31 * minx * TILE_SIZE);
+
+ int ei1 = tri->ei1 << TILE_ORDER;
+ int ei2 = tri->ei2 << TILE_ORDER;
+ int ei3 = tri->ei3 << TILE_ORDER;
+
+ int eo1 = tri->eo1 << TILE_ORDER;
+ int eo2 = tri->eo2 << TILE_ORDER;
+ int eo3 = tri->eo3 << TILE_ORDER;
+
+ int xstep1 = -(tri->dy12 << TILE_ORDER);
+ int xstep2 = -(tri->dy23 << TILE_ORDER);
+ int xstep3 = -(tri->dy31 << TILE_ORDER);
+
+ int ystep1 = tri->dx12 << TILE_ORDER;
+ int ystep2 = tri->dx23 << TILE_ORDER;
+ int ystep3 = tri->dx31 << TILE_ORDER;
+ int x, y;
+
+
+ /* Trivially accept or reject blocks, else jump to per-pixel
+ * examination above.
+ */
+ for (y = miny; y <= maxy; y++)
+ {
+ int cx1 = c1;
+ int cx2 = c2;
+ int cx3 = c3;
+ int in = 0;
+
+ for (x = minx; x <= maxx; x++)
+ {
+ if (cx1 + eo1 < 0 ||
+ cx2 + eo2 < 0 ||
+ cx3 + eo3 < 0)
+ {
+ /* do nothing */
+ if (in)
+ break;
+ }
+ else if (cx1 + ei1 > 0 &&
+ cx2 + ei2 > 0 &&
+ cx3 + ei3 > 0)
+ {
+ in = 1;
+ /* triangle covers the whole tile- shade whole tile */
+ lp_scene_bin_command( scene, x, y,
+ lp_rast_shade_tile,
+ lp_rast_arg_inputs(&tri->inputs) );
+ }
+ else
+ {
+ in = 1;
+ /* shade partial tile */
+ lp_scene_bin_command( scene, x, y,
+ lp_rast_triangle,
+ lp_rast_arg_triangle(tri) );
+ }
+
+ /* Iterate cx values across the region:
+ */
+ cx1 += xstep1;
+ cx2 += xstep2;
+ cx3 += xstep3;
+ }
+
+ /* Iterate c values down the region:
+ */
+ c1 += ystep1;
+ c2 += ystep2;
+ c3 += ystep3;
+ }
+ }
+}
+
+static void triangle_cw( struct setup_context *setup,
+ const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4] )
+{
+ do_triangle_ccw( setup, v1, v0, v2, !setup->ccw_is_frontface );
+}
+
+static void triangle_ccw( struct setup_context *setup,
+ const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4] )
+{
+ do_triangle_ccw( setup, v0, v1, v2, setup->ccw_is_frontface );
+}
+
+static void triangle_both( struct setup_context *setup,
+ const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4] )
+{
+ /* edge vectors e = v0 - v2, f = v1 - v2 */
+ const float ex = v0[0][0] - v2[0][0];
+ const float ey = v0[0][1] - v2[0][1];
+ const float fx = v1[0][0] - v2[0][0];
+ const float fy = v1[0][1] - v2[0][1];
+
+ /* det = cross(e,f).z */
+ if (ex * fy - ey * fx < 0)
+ triangle_ccw( setup, v0, v1, v2 );
+ else
+ triangle_cw( setup, v0, v1, v2 );
+}
+
+static void triangle_nop( struct setup_context *setup,
+ const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4] )
+{
+}
+
+
+void
+lp_setup_choose_triangle( struct setup_context *setup )
+{
+ switch (setup->cullmode) {
+ case PIPE_WINDING_NONE:
+ setup->triangle = triangle_both;
+ break;
+ case PIPE_WINDING_CCW:
+ setup->triangle = triangle_cw;
+ break;
+ case PIPE_WINDING_CW:
+ setup->triangle = triangle_ccw;
+ break;
+ default:
+ setup->triangle = triangle_nop;
+ break;
+ }
+}
+
+
#define LP_NEW_VERTEX 0x1000
#define LP_NEW_VS 0x2000
#define LP_NEW_QUERY 0x4000
+#define LP_NEW_BLEND_COLOR 0x8000
- struct tgsi_sampler;
struct vertex_info;
struct pipe_context;
struct llvmpipe_context;
unsigned max_index,
unsigned mode, unsigned start, unsigned count);
--void
- llvmpipe_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags);
-llvmpipe_map_transfers(struct llvmpipe_context *lp);
--
-void
-llvmpipe_unmap_transfers(struct llvmpipe_context *lp);
--
void
llvmpipe_map_texture_surfaces(struct llvmpipe_context *lp);
const struct pipe_blend_color *blend_color )
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
- unsigned i, j;
+
+ if(!blend_color)
+ return;
+
+ if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0)
+ return;
+ if(memcmp(&llvmpipe->blend_color, blend_color, sizeof *blend_color) == 0)
+ return;
+
+ draw_flush(llvmpipe->draw);
+
memcpy(&llvmpipe->blend_color, blend_color, sizeof *blend_color);
- if(!llvmpipe->jit_context.blend_color)
- llvmpipe->jit_context.blend_color = align_malloc(4 * 16, 16);
- for (i = 0; i < 4; ++i) {
- uint8_t c = float_to_ubyte(blend_color->color[i]);
- for (j = 0; j < 16; ++j)
- llvmpipe->jit_context.blend_color[i*16 + j] = c;
- }
+ llvmpipe->dirty |= LP_NEW_BLEND_COLOR;
}
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
- llvmpipe->depth_stencil = (const struct pipe_depth_stencil_alpha_state *)depth_stencil;
+ if (llvmpipe->depth_stencil == depth_stencil)
+ return;
+
+ draw_flush(llvmpipe->draw);
+
+ llvmpipe->depth_stencil = depth_stencil;
- if(llvmpipe->depth_stencil)
- llvmpipe->jit_context.alpha_ref_value = llvmpipe->depth_stencil->alpha.ref_value;
-
llvmpipe->dirty |= LP_NEW_DEPTH_STENCIL_ALPHA;
}
* (simple float[][4]) used by the 'draw' module into vertices for
* rasterization.
*
- * This function validates the vertex layout and returns a pointer to a
- * vertex_info object.
+ * This function validates the vertex layout.
*/
-struct vertex_info *
-llvmpipe_get_vertex_info(struct llvmpipe_context *llvmpipe)
+static void
+compute_vertex_info(struct llvmpipe_context *llvmpipe)
{
+ const struct lp_fragment_shader *lpfs = llvmpipe->fs;
struct vertex_info *vinfo = &llvmpipe->vertex_info;
- const uint num = draw_num_vs_outputs(llvmpipe->draw);
++ const uint num = draw_num_shader_outputs(llvmpipe->draw);
+ uint i;
- if (vinfo->num_attribs == 0) {
- /* compute vertex layout now */
- const struct lp_fragment_shader *lpfs = llvmpipe->fs;
- struct vertex_info *vinfo_vbuf = &llvmpipe->vertex_info_vbuf;
- const uint num = draw_current_shader_outputs(llvmpipe->draw);
- uint i;
+ /* Tell setup to tell the draw module to simply emit the whole
+ * post-xform vertex as-is.
+ *
+ * Not really sure if this is the best approach.
+ */
+ vinfo->num_attribs = 0;
+ for (i = 0; i < num; i++) {
+ draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, i);
+ }
+ draw_compute_vertex_size(vinfo);
- /* Tell draw_vbuf to simply emit the whole post-xform vertex
- * as-is. No longer any need to try and emit draw vertex_header
- * info.
- */
- vinfo_vbuf->num_attribs = 0;
- for (i = 0; i < num; i++) {
- draw_emit_vertex_attr(vinfo_vbuf, EMIT_4F, INTERP_PERSPECTIVE, i);
- }
- draw_compute_vertex_size(vinfo_vbuf);
- /*
- * Loop over fragment shader inputs, searching for the matching output
- * from the vertex shader.
- */
- vinfo->num_attribs = 0;
- for (i = 0; i < lpfs->info.num_inputs; i++) {
- int src;
- enum interp_mode interp;
+ lp_setup_set_vertex_info(llvmpipe->setup, vinfo);
- switch (lpfs->info.input_interpolate[i]) {
- case TGSI_INTERPOLATE_CONSTANT:
- interp = INTERP_CONSTANT;
- break;
- case TGSI_INTERPOLATE_LINEAR:
- interp = INTERP_LINEAR;
- break;
- case TGSI_INTERPOLATE_PERSPECTIVE:
- interp = INTERP_PERSPECTIVE;
- break;
- default:
- assert(0);
- interp = INTERP_LINEAR;
- }
+/*
+ llvmpipe->psize_slot = draw_find_vs_output(llvmpipe->draw,
+ TGSI_SEMANTIC_PSIZE, 0);
+*/
+ /* Now match FS inputs against emitted vertex data. It's also
+ * entirely possible to just have a fixed layout for FS input,
+ * determined by the fragment shader itself, and adjust the draw
+ * outputs to match that.
+ */
+ {
+ struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
+
+ for (i = 0; i < lpfs->info.num_inputs; i++) {
+
+ /* This can be precomputed, except for flatshade:
+ */
switch (lpfs->info.input_semantic_name[i]) {
+ case TGSI_SEMANTIC_FACE:
+ inputs[i].interp = LP_INTERP_FACING;
+ break;
case TGSI_SEMANTIC_POSITION:
- interp = INTERP_POS;
+ inputs[i].interp = LP_INTERP_POSITION;
break;
-
case TGSI_SEMANTIC_COLOR:
- if (llvmpipe->rasterizer->flatshade) {
- interp = INTERP_CONSTANT;
- }
+ /* Colors are linearly interpolated in the fragment shader
+ * even when flatshading is active. This just tells the
+ * setup module to use coefficients with ddx==0 and
+ * ddy==0.
+ */
+ if (llvmpipe->rasterizer->flatshade)
+ inputs[i].interp = LP_INTERP_CONSTANT;
+ else
+ inputs[i].interp = LP_INTERP_LINEAR;
break;
- }
- /* this includes texcoords and varying vars */
- src = draw_find_shader_output(llvmpipe->draw,
- lpfs->info.input_semantic_name[i],
- lpfs->info.input_semantic_index[i]);
- draw_emit_vertex_attr(vinfo, EMIT_4F, interp, src);
- }
+ default:
+ switch (lpfs->info.input_interpolate[i]) {
+ case TGSI_INTERPOLATE_CONSTANT:
+ inputs[i].interp = LP_INTERP_CONSTANT;
+ break;
+ case TGSI_INTERPOLATE_LINEAR:
+ inputs[i].interp = LP_INTERP_LINEAR;
+ break;
+ case TGSI_INTERPOLATE_PERSPECTIVE:
+ inputs[i].interp = LP_INTERP_PERSPECTIVE;
+ break;
+ default:
+ assert(0);
+ break;
+ }
+ }
- llvmpipe->psize_slot = draw_find_shader_output(llvmpipe->draw,
- TGSI_SEMANTIC_PSIZE, 0);
- if (llvmpipe->psize_slot > 0) {
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT,
- llvmpipe->psize_slot);
+ /* Search for each input in current vs output:
+ */
+ inputs[i].src_index =
- draw_find_vs_output(llvmpipe->draw,
- lpfs->info.input_semantic_name[i],
- lpfs->info.input_semantic_index[i]);
++ draw_find_shader_output(llvmpipe->draw,
++ lpfs->info.input_semantic_name[i],
++ lpfs->info.input_semantic_index[i]);
}
- draw_compute_vertex_size(vinfo);
+ lp_setup_set_fs_inputs(llvmpipe->setup,
+ inputs,
+ lpfs->info.num_inputs);
}
-
- return vinfo;
}
assert(shader < PIPE_SHADER_TYPES);
assert(index == 0);
- if(shader == PIPE_SHADER_VERTEX)
- draw_flush(llvmpipe->draw);
+ if(llvmpipe->constants[shader].buffer == buffer)
+ return;
+
+ draw_flush(llvmpipe->draw);
/* note: reference counting */
pipe_buffer_reference(&llvmpipe->constants[shader].buffer, buffer);
- if(shader == PIPE_SHADER_FRAGMENT) {
- llvmpipe->jit_context.constants = data;
- }
-
if(shader == PIPE_SHADER_VERTEX) {
- draw_set_mapped_constant_buffer(llvmpipe->draw, data, size);
+ draw_set_mapped_constant_buffer(llvmpipe->draw, PIPE_SHADER_VERTEX,
+ data, size);
}
llvmpipe->dirty |= LP_NEW_CONSTANTS;
{
struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+ if (llvmpipe->rasterizer == rasterizer)
+ return;
+
/* pass-through to draw module */
- draw_set_rasterizer_state(llvmpipe->draw, setup);
+ draw_set_rasterizer_state(llvmpipe->draw, rasterizer);
- llvmpipe->rasterizer = (struct pipe_rasterizer_state *)setup;
+ llvmpipe->rasterizer = rasterizer;
+ /* Note: we can immediately set the triangle state here and
+ * not worry about binning because we handle culling during
+ * triangle setup, not when rasterizing the bins.
+ */
+ if (llvmpipe->rasterizer) {
+ lp_setup_set_triangle_state( llvmpipe->setup,
+ llvmpipe->rasterizer->cull_mode,
+ llvmpipe->rasterizer->front_winding == PIPE_WINDING_CCW );
+ }
+
llvmpipe->dirty |= LP_NEW_RASTERIZER;
}
}
- lp_tex_tile_cache_set_texture(llvmpipe->vertex_tex_cache[i], tex);
+ void
+ llvmpipe_set_vertex_sampler_textures(struct pipe_context *pipe,
+ unsigned num_textures,
+ struct pipe_texture **textures)
+ {
+ struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+ uint i;
+
+ assert(num_textures <= PIPE_MAX_VERTEX_SAMPLERS);
+
+ /* Check for no-op */
+ if (num_textures == llvmpipe->num_vertex_textures &&
+ !memcmp(llvmpipe->vertex_textures, textures, num_textures * sizeof(struct pipe_texture *))) {
+ return;
+ }
+
+ draw_flush(llvmpipe->draw);
+
+ for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
+ struct pipe_texture *tex = i < num_textures ? textures[i] : NULL;
+
+ pipe_texture_reference(&llvmpipe->vertex_textures[i], tex);
+ }
+
+ llvmpipe->num_vertex_textures = num_textures;
+
+ llvmpipe->dirty |= LP_NEW_TEXTURE;
+ }
+
+
void
llvmpipe_delete_sampler_state(struct pipe_context *pipe,
void *sampler)
#include "draw/draw_context.h"
+ #include "util/u_format.h"
+
/**
- * XXX this might get moved someday
* Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
- * Here, we flush the old surfaces and update the tile cache to point to the new
- * surfaces.
*/
void
llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
projects / mesa.git / commitdiff