**************************************************************************/
#include "glheader.h"
-#include "macros.h"
-#include "enums.h"
+#include "imports.h"
#include "shader/program.h"
#include "shader/prog_parameter.h"
#include "shader/prog_cache.h"
#define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM)
struct mode_opt {
- GLuint Source:4;
- GLuint Operand:3;
+#ifdef __GNUC__
+ __extension__ GLubyte Source:4; /**< SRC_x */
+ __extension__ GLubyte Operand:3; /**< OPR_x */
+#else
+ GLuint Source; /**< SRC_x */
+ GLuint Operand; /**< OPR_x */
+#endif
};
struct state_key {
GLuint enabled_units:8;
GLuint separate_specular:1;
GLuint fog_enabled:1;
- GLuint fog_mode:2;
+ GLuint fog_mode:2; /**< FOG_x */
GLuint inputs_available:12;
struct {
GLuint enabled:1;
- GLuint source_index:3; /* one of TEXTURE_1D/2D/3D/CUBE/RECT_INDEX */
+ GLuint source_index:3; /**< TEXTURE_x_INDEX */
GLuint shadow:1;
GLuint ScaleShiftRGB:2;
GLuint ScaleShiftA:2;
- GLuint NumArgsRGB:3;
- GLuint ModeRGB:5;
- struct mode_opt OptRGB[MAX_COMBINER_TERMS];
+ GLuint NumArgsRGB:3; /**< up to MAX_COMBINER_TERMS */
+ GLuint ModeRGB:5; /**< MODE_x */
+
+ GLuint NumArgsA:3; /**< up to MAX_COMBINER_TERMS */
+ GLuint ModeA:5; /**< MODE_x */
- GLuint NumArgsA:3;
- GLuint ModeA:5;
+ struct mode_opt OptRGB[MAX_COMBINER_TERMS];
struct mode_opt OptA[MAX_COMBINER_TERMS];
- } unit[8];
+ } unit[MAX_TEXTURE_UNITS];
};
#define FOG_LINEAR 0
}
}
-#define TEXTURE_UNKNOWN_INDEX 7
+
+/**
+ * Translate TEXTURE_x_BIT to TEXTURE_x_INDEX.
+ */
static GLuint translate_tex_src_bit( GLbitfield bit )
{
- /* make sure number of switch cases is correct */
- assert(NUM_TEXTURE_TARGETS == 7);
- switch (bit) {
- case TEXTURE_1D_BIT: return TEXTURE_1D_INDEX;
- case TEXTURE_2D_BIT: return TEXTURE_2D_INDEX;
- case TEXTURE_RECT_BIT: return TEXTURE_RECT_INDEX;
- case TEXTURE_3D_BIT: return TEXTURE_3D_INDEX;
- case TEXTURE_CUBE_BIT: return TEXTURE_CUBE_INDEX;
- case TEXTURE_1D_ARRAY_BIT: return TEXTURE_1D_ARRAY_INDEX;
- case TEXTURE_2D_ARRAY_BIT: return TEXTURE_2D_ARRAY_INDEX;
- default:
- assert(0);
- return TEXTURE_UNKNOWN_INDEX;
- }
+ ASSERT(bit);
+ return _mesa_ffs(bit) - 1;
}
+
#define VERT_BIT_TEX_ANY (0xff << VERT_ATTRIB_TEX0)
#define VERT_RESULT_TEX_ANY (0xff << VERT_RESULT_TEX0)
{
/* _NEW_PROGRAM */
const GLboolean vertexShader = (ctx->Shader.CurrentProgram &&
+ ctx->Shader.CurrentProgram->LinkStatus &&
ctx->Shader.CurrentProgram->VertexProgram);
const GLboolean vertexProgram = ctx->VertexProgram._Enabled;
GLbitfield fp_inputs = 0x0;
/* Then look at what might be varying as a result of enabled
* arrays, etc:
*/
- if (varying_inputs & VERT_BIT_COLOR0) fp_inputs |= FRAG_BIT_COL0;
- if (varying_inputs & VERT_BIT_COLOR1) fp_inputs |= FRAG_BIT_COL1;
+ if (varying_inputs & VERT_BIT_COLOR0)
+ fp_inputs |= FRAG_BIT_COL0;
+ if (varying_inputs & VERT_BIT_COLOR1)
+ fp_inputs |= FRAG_BIT_COL1;
fp_inputs |= (((varying_inputs & VERT_BIT_TEX_ANY) >> VERT_ATTRIB_TEX0)
<< FRAG_ATTRIB_TEX0);
if (vertexShader)
vprog = ctx->Shader.CurrentProgram->VertexProgram;
else
- vprog = ctx->VertexProgram._Current;
+ vprog = ctx->VertexProgram.Current;
vp_outputs = vprog->Base.OutputsWritten;
if (ctx->Point.PointSprite)
vp_outputs |= FRAG_BITS_TEX_ANY;
- if (vp_outputs & (1 << VERT_RESULT_COL0)) fp_inputs |= FRAG_BIT_COL0;
- if (vp_outputs & (1 << VERT_RESULT_COL1)) fp_inputs |= FRAG_BIT_COL1;
+ if (vp_outputs & (1 << VERT_RESULT_COL0))
+ fp_inputs |= FRAG_BIT_COL0;
+ if (vp_outputs & (1 << VERT_RESULT_COL1))
+ fp_inputs |= FRAG_BIT_COL1;
fp_inputs |= (((vp_outputs & VERT_RESULT_TEX_ANY) >> VERT_RESULT_TEX0)
<< FRAG_ATTRIB_TEX0);
{
GLuint i, j;
GLbitfield inputs_referenced = FRAG_BIT_COL0;
- GLbitfield inputs_available = get_fp_input_mask( ctx );
+ const GLbitfield inputs_available = get_fp_input_mask( ctx );
memset(key, 0, sizeof(*key));
/* _NEW_TEXTURE */
for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
+ const struct gl_texture_object *texObj = texUnit->_Current;
+ const struct gl_tex_env_combine_state *comb = texUnit->_CurrentCombine;
GLenum format;
if (!texUnit->_ReallyEnabled || !texUnit->Enabled)
continue;
- format = texUnit->_Current->Image[0][texUnit->_Current->BaseLevel]->_BaseFormat;
+ format = texObj->Image[0][texObj->BaseLevel]->_BaseFormat;
key->unit[i].enabled = 1;
key->enabled_units |= (1<<i);
key->nr_enabled_units = i+1;
inputs_referenced |= FRAG_BIT_TEX(i);
- key->unit[i].source_index =
- translate_tex_src_bit(texUnit->_ReallyEnabled);
- key->unit[i].shadow = ((texUnit->_Current->CompareMode == GL_COMPARE_R_TO_TEXTURE) &&
+ key->unit[i].source_index =
+ translate_tex_src_bit(texUnit->_ReallyEnabled);
+
+ key->unit[i].shadow = ((texObj->CompareMode == GL_COMPARE_R_TO_TEXTURE) &&
((format == GL_DEPTH_COMPONENT) ||
(format == GL_DEPTH_STENCIL_EXT)));
- key->unit[i].NumArgsRGB = texUnit->_CurrentCombine->_NumArgsRGB;
- key->unit[i].NumArgsA = texUnit->_CurrentCombine->_NumArgsA;
+ key->unit[i].NumArgsRGB = comb->_NumArgsRGB;
+ key->unit[i].NumArgsA = comb->_NumArgsA;
key->unit[i].ModeRGB =
- translate_mode(texUnit->EnvMode, texUnit->_CurrentCombine->ModeRGB);
+ translate_mode(texUnit->EnvMode, comb->ModeRGB);
key->unit[i].ModeA =
- translate_mode(texUnit->EnvMode, texUnit->_CurrentCombine->ModeA);
+ translate_mode(texUnit->EnvMode, comb->ModeA);
- key->unit[i].ScaleShiftRGB = texUnit->_CurrentCombine->ScaleShiftRGB;
- key->unit[i].ScaleShiftA = texUnit->_CurrentCombine->ScaleShiftA;
+ key->unit[i].ScaleShiftRGB = comb->ScaleShiftRGB;
+ key->unit[i].ScaleShiftA = comb->ScaleShiftA;
for (j = 0; j < MAX_COMBINER_TERMS; j++) {
- key->unit[i].OptRGB[j].Operand =
- translate_operand(texUnit->_CurrentCombine->OperandRGB[j]);
- key->unit[i].OptA[j].Operand =
- translate_operand(texUnit->_CurrentCombine->OperandA[j]);
- key->unit[i].OptRGB[j].Source =
- translate_source(texUnit->_CurrentCombine->SourceRGB[j]);
- key->unit[i].OptA[j].Source =
- translate_source(texUnit->_CurrentCombine->SourceA[j]);
+ key->unit[i].OptRGB[j].Operand = translate_operand(comb->OperandRGB[j]);
+ key->unit[i].OptA[j].Operand = translate_operand(comb->OperandA[j]);
+ key->unit[i].OptRGB[j].Source = translate_source(comb->SourceRGB[j]);
+ key->unit[i].OptA[j].Source = translate_source(comb->SourceA[j]);
}
if (key->unit[i].ModeRGB == MODE_BUMP_ENVMAP_ATI) {
GLuint file:4;
GLuint idx:8;
GLuint negatebase:1;
- GLuint abs:1;
- GLuint negateabs:1;
GLuint swz:12;
- GLuint pad:5;
+ GLuint pad:7;
};
static const struct ureg undef = {
~0,
0,
0,
- 0,
- 0,
0
};
*/
struct texenv_fragment_program {
struct gl_fragment_program *program;
- GLcontext *ctx;
struct state_key *state;
GLbitfield alu_temps; /**< Track texture indirections, see spec. */
reg.file = file;
reg.idx = idx;
reg.negatebase = 0;
- reg.abs = 0;
- reg.negateabs = 0;
reg.swz = SWIZZLE_NOOP;
reg.pad = 0;
return reg;
reg->Index = ureg.idx;
reg->Swizzle = ureg.swz;
reg->Negate = ureg.negatebase ? NEGATE_XYZW : NEGATE_NONE;
- reg->Abs = ureg.abs;
+ reg->Abs = GL_FALSE;
}
static void emit_dst( struct prog_dst_register *dst,
struct ureg src1,
struct ureg src2 )
{
- GLuint nr = p->program->Base.NumInstructions++;
+ const GLuint nr = p->program->Base.NumInstructions++;
struct prog_instruction *inst = &p->program->Base.Instructions[nr];
assert(nr < MAX_INSTRUCTIONS);
}
}
-static GLboolean args_match( struct state_key *key, GLuint unit )
+/**
+ * Check if the RGB and Alpha sources and operands match for the given
+ * texture unit's combinder state. When the RGB and A sources and
+ * operands match, we can emit fewer instructions.
+ */
+static GLboolean args_match( const struct state_key *key, GLuint unit )
{
- GLuint i, nr = key->unit[unit].NumArgsRGB;
+ GLuint i, numArgs = key->unit[unit].NumArgsRGB;
- for (i = 0 ; i < nr ; i++) {
+ for (i = 0; i < numArgs; i++) {
if (key->unit[unit].OptA[i].Source != key->unit[unit].OptRGB[i].Source)
return GL_FALSE;
- switch(key->unit[unit].OptA[i].Operand) {
+ switch (key->unit[unit].OptA[i].Operand) {
case OPR_SRC_ALPHA:
- switch(key->unit[unit].OptRGB[i].Operand) {
+ switch (key->unit[unit].OptRGB[i].Operand) {
case OPR_SRC_COLOR:
case OPR_SRC_ALPHA:
break;
}
break;
case OPR_ONE_MINUS_SRC_ALPHA:
- switch(key->unit[unit].OptRGB[i].Operand) {
+ switch (key->unit[unit].OptRGB[i].Operand) {
case OPR_ONE_MINUS_SRC_COLOR:
case OPR_ONE_MINUS_SRC_ALPHA:
break;
static struct ureg
emit_texenv(struct texenv_fragment_program *p, GLuint unit)
{
- struct state_key *key = p->state;
- GLboolean saturate = (unit < p->last_tex_stage);
+ const struct state_key *key = p->state;
+ GLboolean saturate;
GLuint rgb_shift, alpha_shift;
- struct ureg out, shift;
- struct ureg dest;
+ struct ureg out, dest;
if (!key->unit[unit].enabled) {
return get_source(p, SRC_PREVIOUS, 0);
break;
}
+ /* If we'll do rgb/alpha shifting don't saturate in emit_combine().
+ * We don't want to clamp twice.
+ */
+ saturate = !(rgb_shift || alpha_shift);
+
/* If this is the very last calculation, emit direct to output reg:
*/
if (key->separate_specular ||
}
else if (key->unit[unit].ModeRGB == MODE_DOT3_RGBA_EXT ||
key->unit[unit].ModeRGB == MODE_DOT3_RGBA) {
-
out = emit_combine( p, dest, WRITEMASK_XYZW, saturate,
unit,
key->unit[unit].NumArgsRGB,
/* Deal with the final shift:
*/
if (alpha_shift || rgb_shift) {
+ struct ureg shift;
+
+ saturate = GL_TRUE; /* always saturate at this point */
+
if (rgb_shift == alpha_shift) {
shift = register_scalar_const(p, (GLfloat)(1<<rgb_shift));
}
static void load_texture( struct texenv_fragment_program *p, GLuint unit )
{
if (is_undef(p->src_texture[unit])) {
- GLuint texTarget = p->state->unit[unit].source_index;
+ const GLuint texTarget = p->state->unit[unit].source_index;
struct ureg texcoord;
struct ureg tmp = get_tex_temp( p );
texcoord = p->texcoord_tex[unit];
}
- if (texTarget == TEXTURE_UNKNOWN_INDEX)
- program_error(p, "TexSrcBit");
-
/* TODO: Use D0_MASK_XY where possible.
*/
if (p->state->unit[unit].enabled) {
* Generate instructions for loading all texture source terms.
*/
static GLboolean
-load_texunit_sources( struct texenv_fragment_program *p, int unit )
+load_texunit_sources( struct texenv_fragment_program *p, GLuint unit )
{
- struct state_key *key = p->state;
+ const struct state_key *key = p->state;
GLuint i;
for (i = 0; i < key->unit[unit].NumArgsRGB; i++) {
* Generate instructions for loading bump map textures.
*/
static GLboolean
-load_texunit_bumpmap( struct texenv_fragment_program *p, int unit )
+load_texunit_bumpmap( struct texenv_fragment_program *p, GLuint unit )
{
- struct state_key *key = p->state;
+ const struct state_key *key = p->state;
GLuint bumpedUnitNr = key->unit[unit].OptRGB[1].Source - SRC_TEXTURE0;
struct ureg texcDst, bumpMapRes;
struct ureg constdudvcolor = register_const4f(p, 0.0, 0.0, 0.0, 1.0);
texcDst = get_tex_temp( p );
p->texcoord_tex[bumpedUnitNr] = texcDst;
- /* apply rot matrix and add coords to be available in next phase */
- /* dest = (Arg0.xxxx * rotMat0 + Arg1) + (Arg0.yyyy * rotMat1) */
- /* note only 2 coords are affected the rest are left unchanged (mul by 0) */
+ /* Apply rot matrix and add coords to be available in next phase.
+ * dest = (Arg0.xxxx * rotMat0 + Arg1) + (Arg0.yyyy * rotMat1)
+ * note only 2 coords are affected the rest are left unchanged (mul by 0)
+ */
emit_arith( p, OPCODE_MAD, texcDst, WRITEMASK_XYZW, 0,
swizzle1(bumpMapRes, SWIZZLE_X), rotMat0, texcSrc );
emit_arith( p, OPCODE_MAD, texcDst, WRITEMASK_XYZW, 0,
swizzle1(bumpMapRes, SWIZZLE_Y), rotMat1, texcDst );
- /* move 0,0,0,1 into bumpmap src if someone (crossbar) is foolish
- enough to access this later, should optimize away */
- emit_arith( p, OPCODE_MOV, bumpMapRes, WRITEMASK_XYZW, 0, constdudvcolor, undef, undef );
+ /* Move 0,0,0,1 into bumpmap src if someone (crossbar) is foolish
+ * enough to access this later, should optimize away.
+ */
+ emit_arith( p, OPCODE_MOV, bumpMapRes, WRITEMASK_XYZW, 0,
+ constdudvcolor, undef, undef );
return GL_TRUE;
}
struct ureg cf, out;
_mesa_memset(&p, 0, sizeof(p));
- p.ctx = ctx;
p.state = key;
p.program = program;
*/
p.program->Base.Instructions = instBuffer;
p.program->Base.Target = GL_FRAGMENT_PROGRAM_ARB;
- p.program->Base.NumTexIndirections = 1;
+ p.program->Base.String = NULL;
+ p.program->Base.NumTexIndirections = 1; /* is this right? */
p.program->Base.NumTexInstructions = 0;
p.program->Base.NumAluInstructions = 0;
- p.program->Base.String = NULL;
- p.program->Base.NumInstructions =
- p.program->Base.NumTemporaries =
- p.program->Base.NumParameters =
- p.program->Base.NumAttributes = p.program->Base.NumAddressRegs = 0;
+ p.program->Base.NumInstructions = 0;
+ p.program->Base.NumTemporaries = 0;
+ p.program->Base.NumParameters = 0;
+ p.program->Base.NumAttributes = 0;
+ p.program->Base.NumAddressRegs = 0;
p.program->Base.Parameters = _mesa_new_parameter_list();
-
- p.program->Base.InputsRead = 0;
+ p.program->Base.InputsRead = 0x0;
p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR;
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
release_temps(ctx, &p);
if (key->enabled_units) {
- GLboolean needbumpstage = GL_FALSE;
+ GLboolean needbumpstage = GL_FALSE;
+
/* Zeroth pass - bump map textures first */
- for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
- if (key->unit[unit].enabled && key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) {
+ for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++)
+ if (key->unit[unit].enabled &&
+ key->unit[unit].ModeRGB == MODE_BUMP_ENVMAP_ATI) {
needbumpstage = GL_TRUE;
load_texunit_bumpmap( &p, unit );
}
* all referenced texture sources and emit texld instructions
* for each:
*/
- for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
+ for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++)
if (key->unit[unit].enabled) {
load_texunit_sources( &p, unit );
p.last_tex_stage = unit;
/* Second pass - emit combine instructions to build final color:
*/
- for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++)
- if (key->enabled_units & (1<<unit)) {
+ for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++)
+ if (key->unit[unit].enabled) {
p.src_previous = emit_texenv( &p, unit );
reserve_temp(&p, p.src_previous); /* don't re-use this temp reg */
release_temps(ctx, &p); /* release all temps */
* a reduced value and not what is expected in FogOption
*/
p.program->FogOption = ctx->Fog.Mode;
- p.program->Base.InputsRead |= FRAG_BIT_FOGC; /* XXX new */
- } else
+ p.program->Base.InputsRead |= FRAG_BIT_FOGC;
+ }
+ else {
p.program->FogOption = GL_NONE;
+ }
if (p.program->Base.NumTexIndirections > ctx->Const.FragmentProgram.MaxTexIndirections)
program_error(&p, "Exceeded max nr indirect texture lookups");
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