/**************************************************************************
*
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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
+ * 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 "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
+#include "util/u_pstipple.h"
#include "util/u_sampler.h"
#include "tgsi/tgsi_transform.h"
-#include "tgsi/tgsi_dump.h"
#include "draw_context.h"
#include "draw_pipe.h"
/** Approx number of new tokens for instructions in pstip_transform_inst() */
-#define NUM_NEW_TOKENS 50
+#define NUM_NEW_TOKENS 53
/**
unsigned, unsigned, void **);
void (*driver_set_sampler_views)(struct pipe_context *,
- unsigned,
+ unsigned shader, unsigned start,
+ unsigned count,
struct pipe_sampler_view **);
void (*driver_set_polygon_stipple)(struct pipe_context *,
};
-
-/**
- * Subclass of tgsi_transform_context, used for transforming the
- * user's fragment shader to add the extra texture sample and fragment kill
- * instructions.
- */
-struct pstip_transform_context {
- struct tgsi_transform_context base;
- uint tempsUsed; /**< bitmask */
- int wincoordInput;
- int maxInput;
- uint samplersUsed; /**< bitfield of samplers used */
- int freeSampler; /** an available sampler for the pstipple */
- int texTemp; /**< temp registers */
- int numImmed;
- boolean firstInstruction;
-};
-
-
-/**
- * TGSI declaration transform callback.
- * Look for a free sampler, a free input attrib, and two free temp regs.
- */
-static void
-pstip_transform_decl(struct tgsi_transform_context *ctx,
- struct tgsi_full_declaration *decl)
-{
- struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx;
-
- if (decl->Declaration.File == TGSI_FILE_SAMPLER) {
- uint i;
- for (i = decl->Range.First;
- i <= decl->Range.Last; i++) {
- pctx->samplersUsed |= 1 << i;
- }
- }
- else if (decl->Declaration.File == TGSI_FILE_INPUT) {
- pctx->maxInput = MAX2(pctx->maxInput, (int) decl->Range.Last);
- if (decl->Semantic.Name == TGSI_SEMANTIC_POSITION)
- pctx->wincoordInput = (int) decl->Range.First;
- }
- else if (decl->Declaration.File == TGSI_FILE_TEMPORARY) {
- uint i;
- for (i = decl->Range.First;
- i <= decl->Range.Last; i++) {
- pctx->tempsUsed |= (1 << i);
- }
- }
-
- ctx->emit_declaration(ctx, decl);
-}
-
-
-/**
- * TGSI immediate declaration transform callback.
- * We're just counting the number of immediates here.
- */
-static void
-pstip_transform_immed(struct tgsi_transform_context *ctx,
- struct tgsi_full_immediate *immed)
-{
- struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx;
- ctx->emit_immediate(ctx, immed); /* emit to output shader */
- pctx->numImmed++;
-}
-
-
-/**
- * Find the lowest zero bit in the given word, or -1 if bitfield is all ones.
- */
-static int
-free_bit(uint bitfield)
-{
- return ffs(~bitfield) - 1;
-}
-
-
-/**
- * TGSI instruction transform callback.
- * Replace writes to result.color w/ a temp reg.
- * Upon END instruction, insert texture sampling code for antialiasing.
- */
-static void
-pstip_transform_inst(struct tgsi_transform_context *ctx,
- struct tgsi_full_instruction *inst)
-{
- struct pstip_transform_context *pctx = (struct pstip_transform_context *) ctx;
-
- if (pctx->firstInstruction) {
- /* emit our new declarations before the first instruction */
-
- struct tgsi_full_declaration decl;
- struct tgsi_full_instruction newInst;
- uint i;
- int wincoordInput;
-
- /* find free sampler */
- pctx->freeSampler = free_bit(pctx->samplersUsed);
- if (pctx->freeSampler >= PIPE_MAX_SAMPLERS)
- pctx->freeSampler = PIPE_MAX_SAMPLERS - 1;
-
- if (pctx->wincoordInput < 0)
- wincoordInput = pctx->maxInput + 1;
- else
- wincoordInput = pctx->wincoordInput;
-
- /* find one free temp reg */
- for (i = 0; i < 32; i++) {
- if ((pctx->tempsUsed & (1 << i)) == 0) {
- /* found a free temp */
- if (pctx->texTemp < 0)
- pctx->texTemp = i;
- else
- break;
- }
- }
- assert(pctx->texTemp >= 0);
-
- if (pctx->wincoordInput < 0) {
- /* declare new position input reg */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_INPUT;
- decl.Declaration.Interpolate = 1;
- decl.Declaration.Semantic = 1;
- decl.Semantic.Name = TGSI_SEMANTIC_POSITION;
- decl.Semantic.Index = 0;
- decl.Range.First =
- decl.Range.Last = wincoordInput;
- decl.Interp.Interpolate = TGSI_INTERPOLATE_LINEAR; /* XXX? */
- ctx->emit_declaration(ctx, &decl);
- }
-
- /* declare new sampler */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_SAMPLER;
- decl.Range.First =
- decl.Range.Last = pctx->freeSampler;
- ctx->emit_declaration(ctx, &decl);
-
- /* declare new temp regs */
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_TEMPORARY;
- decl.Range.First =
- decl.Range.Last = pctx->texTemp;
- ctx->emit_declaration(ctx, &decl);
-
- /* emit immediate = {1/32, 1/32, 1, 1}
- * The index/position of this immediate will be pctx->numImmed
- */
- {
- static const float value[4] = { 1.0/32, 1.0/32, 1.0, 1.0 };
- struct tgsi_full_immediate immed;
- uint size = 4;
- immed = tgsi_default_full_immediate();
- immed.Immediate.NrTokens = 1 + size; /* one for the token itself */
- immed.u[0].Float = value[0];
- immed.u[1].Float = value[1];
- immed.u[2].Float = value[2];
- immed.u[3].Float = value[3];
- ctx->emit_immediate(ctx, &immed);
- }
-
- pctx->firstInstruction = FALSE;
-
-
- /*
- * Insert new MUL/TEX/KILL_IF instructions at start of program
- * Take gl_FragCoord, divide by 32 (stipple size), sample the
- * texture and kill fragment if needed.
- *
- * We'd like to use non-normalized texcoords to index into a RECT
- * texture, but we can only use GL_REPEAT wrap mode with normalized
- * texcoords. Darn.
- */
-
- /* MUL texTemp, INPUT[wincoord], 1/32; */
- newInst = tgsi_default_full_instruction();
- newInst.Instruction.Opcode = TGSI_OPCODE_MUL;
- newInst.Instruction.NumDstRegs = 1;
- newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
- newInst.Dst[0].Register.Index = pctx->texTemp;
- newInst.Instruction.NumSrcRegs = 2;
- newInst.Src[0].Register.File = TGSI_FILE_INPUT;
- newInst.Src[0].Register.Index = wincoordInput;
- newInst.Src[1].Register.File = TGSI_FILE_IMMEDIATE;
- newInst.Src[1].Register.Index = pctx->numImmed;
- ctx->emit_instruction(ctx, &newInst);
-
- /* TEX texTemp, texTemp, sampler; */
- newInst = tgsi_default_full_instruction();
- newInst.Instruction.Opcode = TGSI_OPCODE_TEX;
- newInst.Instruction.NumDstRegs = 1;
- newInst.Dst[0].Register.File = TGSI_FILE_TEMPORARY;
- newInst.Dst[0].Register.Index = pctx->texTemp;
- newInst.Instruction.NumSrcRegs = 2;
- newInst.Instruction.Texture = TRUE;
- newInst.Texture.Texture = TGSI_TEXTURE_2D;
- newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
- newInst.Src[0].Register.Index = pctx->texTemp;
- newInst.Src[1].Register.File = TGSI_FILE_SAMPLER;
- newInst.Src[1].Register.Index = pctx->freeSampler;
- ctx->emit_instruction(ctx, &newInst);
-
- /* KILL_IF -texTemp; # if -texTemp < 0, KILL fragment */
- newInst = tgsi_default_full_instruction();
- newInst.Instruction.Opcode = TGSI_OPCODE_KILL_IF;
- newInst.Instruction.NumDstRegs = 0;
- newInst.Instruction.NumSrcRegs = 1;
- newInst.Src[0].Register.File = TGSI_FILE_TEMPORARY;
- newInst.Src[0].Register.Index = pctx->texTemp;
- newInst.Src[0].Register.Negate = 1;
- ctx->emit_instruction(ctx, &newInst);
- }
-
- /* emit this instruction */
- ctx->emit_instruction(ctx, inst);
-}
-
-
/**
* Generate the frag shader we'll use for doing polygon stipple.
* This will be the user's shader prefixed with a TEX and KIL instruction.
static boolean
generate_pstip_fs(struct pstip_stage *pstip)
{
+ struct pipe_context *pipe = pstip->pipe;
+ struct pipe_screen *screen = pipe->screen;
const struct pipe_shader_state *orig_fs = &pstip->fs->state;
/*struct draw_context *draw = pstip->stage.draw;*/
struct pipe_shader_state pstip_fs;
- struct pstip_transform_context transform;
- const uint newLen = tgsi_num_tokens(orig_fs->tokens) + NUM_NEW_TOKENS;
+ enum tgsi_file_type wincoord_file;
+
+ wincoord_file = screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL) ?
+ TGSI_FILE_SYSTEM_VALUE : TGSI_FILE_INPUT;
pstip_fs = *orig_fs; /* copy to init */
- pstip_fs.tokens = tgsi_alloc_tokens(newLen);
+ pstip_fs.tokens = util_pstipple_create_fragment_shader(orig_fs->tokens,
+ &pstip->fs->sampler_unit,
+ 0,
+ wincoord_file);
if (pstip_fs.tokens == NULL)
return FALSE;
- memset(&transform, 0, sizeof(transform));
- transform.wincoordInput = -1;
- transform.maxInput = -1;
- transform.texTemp = -1;
- transform.firstInstruction = TRUE;
- transform.base.transform_instruction = pstip_transform_inst;
- transform.base.transform_declaration = pstip_transform_decl;
- transform.base.transform_immediate = pstip_transform_immed;
-
- tgsi_transform_shader(orig_fs->tokens,
- (struct tgsi_token *) pstip_fs.tokens,
- newLen, &transform.base);
-
-#if 0 /* DEBUG */
- tgsi_dump(orig_fs->tokens, 0);
- tgsi_dump(pstip_fs.tokens, 0);
-#endif
-
- assert(pstip->fs);
-
- pstip->fs->sampler_unit = transform.freeSampler;
assert(pstip->fs->sampler_unit < PIPE_MAX_SAMPLERS);
- pstip->fs->pstip_fs = pstip->driver_create_fs_state(pstip->pipe, &pstip_fs);
+ pstip->fs->pstip_fs = pstip->driver_create_fs_state(pipe, &pstip_fs);
FREE((void *)pstip_fs.tokens);
}
-/**
- * Load texture image with current stipple pattern.
- */
-static void
-pstip_update_texture(struct pstip_stage *pstip)
-{
- static const uint bit31 = 1 << 31;
- struct pipe_context *pipe = pstip->pipe;
- struct pipe_transfer *transfer;
- const uint *stipple = pstip->state.stipple->stipple;
- uint i, j;
- ubyte *data;
-
- data = pipe_transfer_map(pipe, pstip->texture, 0, 0,
- PIPE_TRANSFER_WRITE, 0, 0, 32, 32, &transfer);
-
- /*
- * Load alpha texture.
- * Note: 0 means keep the fragment, 255 means kill it.
- * We'll negate the texel value and use KILL_IF which kills if value
- * is negative.
- */
- for (i = 0; i < 32; i++) {
- for (j = 0; j < 32; j++) {
- if (stipple[i] & (bit31 >> j)) {
- /* fragment "on" */
- data[i * transfer->stride + j] = 0;
- }
- else {
- /* fragment "off" */
- data[i * transfer->stride + j] = 255;
- }
- }
- }
-
- /* unmap */
- pipe_transfer_unmap(pipe, transfer);
-}
-
-
-/**
- * Create the texture map we'll use for stippling.
- */
-static boolean
-pstip_create_texture(struct pstip_stage *pstip)
-{
- struct pipe_context *pipe = pstip->pipe;
- struct pipe_screen *screen = pipe->screen;
- struct pipe_resource texTemp;
- struct pipe_sampler_view viewTempl;
-
- memset(&texTemp, 0, sizeof(texTemp));
- texTemp.target = PIPE_TEXTURE_2D;
- texTemp.format = PIPE_FORMAT_A8_UNORM; /* XXX verify supported by driver! */
- texTemp.last_level = 0;
- texTemp.width0 = 32;
- texTemp.height0 = 32;
- texTemp.depth0 = 1;
- texTemp.array_size = 1;
- texTemp.bind = PIPE_BIND_SAMPLER_VIEW;
-
- pstip->texture = screen->resource_create(screen, &texTemp);
- if (pstip->texture == NULL)
- return FALSE;
-
- u_sampler_view_default_template(&viewTempl,
- pstip->texture,
- pstip->texture->format);
- pstip->sampler_view = pipe->create_sampler_view(pipe,
- pstip->texture,
- &viewTempl);
- if (!pstip->sampler_view) {
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/**
- * Create the sampler CSO that'll be used for stippling.
- */
-static boolean
-pstip_create_sampler(struct pstip_stage *pstip)
-{
- struct pipe_sampler_state sampler;
- struct pipe_context *pipe = pstip->pipe;
-
- memset(&sampler, 0, sizeof(sampler));
- sampler.wrap_s = PIPE_TEX_WRAP_REPEAT;
- sampler.wrap_t = PIPE_TEX_WRAP_REPEAT;
- sampler.wrap_r = PIPE_TEX_WRAP_REPEAT;
- sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
- sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.normalized_coords = 1;
- sampler.min_lod = 0.0f;
- sampler.max_lod = 0.0f;
-
- pstip->sampler_cso = pipe->create_sampler_state(pipe, &sampler);
- if (pstip->sampler_cso == NULL)
- return FALSE;
-
- return TRUE;
-}
-
-
/**
* When we're about to draw our first stipple polygon in a batch, this function
* is called to tell the driver to bind our modified fragment shader.
}
-static INLINE struct pstip_stage *
+static inline struct pstip_stage *
pstip_stage( struct draw_stage *stage )
{
return (struct pstip_stage *) stage;
struct pipe_context *pipe = pstip->pipe;
struct draw_context *draw = stage->draw;
uint num_samplers;
+ uint num_sampler_views;
assert(stage->draw->rasterizer->poly_stipple_enable);
/* how many samplers? */
/* we'll use sampler/texture[pstip->sampler_unit] for the stipple */
- num_samplers = MAX2(pstip->num_sampler_views, pstip->num_samplers);
- num_samplers = MAX2(num_samplers, pstip->fs->sampler_unit + 1);
+ num_samplers = MAX2(pstip->num_samplers, pstip->fs->sampler_unit + 1);
+ num_sampler_views = MAX2(pstip->num_sampler_views, num_samplers);
/* plug in our sampler, texture */
pstip->state.samplers[pstip->fs->sampler_unit] = pstip->sampler_cso;
pstip->driver_bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT, 0,
num_samplers, pstip->state.samplers);
- pstip->driver_set_sampler_views(pipe, num_samplers, pstip->state.sampler_views);
+ pstip->driver_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0,
+ num_sampler_views, pstip->state.sampler_views);
+
draw->suspend_flushing = FALSE;
/* now really draw first triangle */
pstip->num_samplers,
pstip->state.samplers);
- pstip->driver_set_sampler_views(pipe,
+ pstip->driver_set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0,
pstip->num_sampler_views,
pstip->state.sampler_views);
+
draw->suspend_flushing = FALSE;
}
draw_pstip_stage(struct draw_context *draw, struct pipe_context *pipe)
{
struct pstip_stage *pstip = CALLOC_STRUCT(pstip_stage);
- if (pstip == NULL)
+ if (!pstip)
goto fail;
pstip->pipe = pipe;
struct pstip_fragment_shader *pstipfs = CALLOC_STRUCT(pstip_fragment_shader);
if (pstipfs) {
- pstipfs->state = *fs;
+ pstipfs->state.tokens = tgsi_dup_tokens(fs->tokens);
/* pass-through */
pstipfs->driver_fs = pstip->driver_create_fs_state(pstip->pipe, fs);
if (pstipfs->pstip_fs)
pstip->driver_delete_fs_state(pstip->pipe, pstipfs->pstip_fs);
+ FREE((void*)pstipfs->state.tokens);
FREE(pstipfs);
}
static void
pstip_set_sampler_views(struct pipe_context *pipe,
- unsigned num,
+ unsigned shader, unsigned start, unsigned num,
struct pipe_sampler_view **views)
{
struct pstip_stage *pstip = pstip_stage_from_pipe(pipe);
uint i;
- /* save current */
- for (i = 0; i < num; i++) {
- pipe_sampler_view_reference(&pstip->state.sampler_views[i], views[i]);
- }
- for (; i < PIPE_MAX_SHADER_SAMPLER_VIEWS; i++) {
- pipe_sampler_view_reference(&pstip->state.sampler_views[i], NULL);
+ if (shader == PIPE_SHADER_FRAGMENT) {
+ /* save current */
+ for (i = 0; i < num; i++) {
+ pipe_sampler_view_reference(&pstip->state.sampler_views[start + i],
+ views[i]);
+ }
+ pstip->num_sampler_views = num;
}
- pstip->num_sampler_views = num;
-
/* pass-through */
- pstip->driver_set_sampler_views(pstip->pipe, num, views);
+ pstip->driver_set_sampler_views(pstip->pipe, shader, start, num, views);
}
/* pass-through */
pstip->driver_set_polygon_stipple(pstip->pipe, stipple);
- pstip_update_texture(pstip);
+ util_pstipple_update_stipple_texture(pstip->pipe, pstip->texture,
+ pstip->state.stipple->stipple);
}
* Create / install pgon stipple drawing / prim stage
*/
pstip = draw_pstip_stage( draw, pipe );
- if (pstip == NULL)
+ if (!pstip)
goto fail;
draw->pipeline.pstipple = &pstip->stage;
- /* create special texture, sampler state */
- if (!pstip_create_texture(pstip))
- goto fail;
-
- if (!pstip_create_sampler(pstip))
- goto fail;
-
/* save original driver functions */
pstip->driver_create_fs_state = pipe->create_fs_state;
pstip->driver_bind_fs_state = pipe->bind_fs_state;
pstip->driver_delete_fs_state = pipe->delete_fs_state;
pstip->driver_bind_sampler_states = pipe->bind_sampler_states;
- pstip->driver_set_sampler_views = pipe->set_fragment_sampler_views;
+ pstip->driver_set_sampler_views = pipe->set_sampler_views;
pstip->driver_set_polygon_stipple = pipe->set_polygon_stipple;
+ /* create special texture, sampler state */
+ pstip->texture = util_pstipple_create_stipple_texture(pipe, NULL);
+ if (!pstip->texture)
+ goto fail;
+
+ pstip->sampler_view = util_pstipple_create_sampler_view(pipe,
+ pstip->texture);
+ if (!pstip->sampler_view)
+ goto fail;
+
+ pstip->sampler_cso = util_pstipple_create_sampler(pipe);
+ if (!pstip->sampler_cso)
+ goto fail;
+
/* override the driver's functions */
pipe->create_fs_state = pstip_create_fs_state;
pipe->bind_fs_state = pstip_bind_fs_state;
pipe->delete_fs_state = pstip_delete_fs_state;
pipe->bind_sampler_states = pstip_bind_sampler_states;
- pipe->set_fragment_sampler_views = pstip_set_sampler_views;
+ pipe->set_sampler_views = pstip_set_sampler_views;
pipe->set_polygon_stipple = pstip_set_polygon_stipple;
return TRUE;
projects / mesa.git / blobdiff