**************************************************************************/
#include "glheader.h"
-#include "macros.h"
-#include "enums.h"
-#include "shader/program.h"
-#include "shader/prog_parameter.h"
-#include "shader/prog_cache.h"
-#include "shader/prog_instruction.h"
-#include "shader/prog_print.h"
-#include "shader/prog_statevars.h"
-#include "shader/programopt.h"
+#include "imports.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
+#include "program/prog_cache.h"
+#include "program/prog_instruction.h"
+#include "program/prog_print.h"
+#include "program/prog_statevars.h"
+#include "program/programopt.h"
#include "texenvprogram.h"
};
static GLboolean
-texenv_doing_secondary_color(GLcontext *ctx)
+texenv_doing_secondary_color(struct gl_context *ctx)
{
if (ctx->Light.Enabled &&
(ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR))
#define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM)
struct mode_opt {
- GLuint Source:4; /**< SRC_x */
- GLuint Operand:3; /**< OPR_x */
+#ifdef __GNUC__
+ __extension__ GLubyte Source:4; /**< SRC_x */
+ __extension__ GLubyte Operand:3; /**< OPR_x */
+#else
+ GLubyte Source; /**< SRC_x */
+ GLubyte Operand; /**< OPR_x */
+#endif
};
struct state_key {
GLuint fog_enabled:1;
GLuint fog_mode:2; /**< FOG_x */
GLuint inputs_available:12;
+ GLuint num_draw_buffers:4;
+ /* NOTE: This array of structs must be last! (see "keySize" below) */
struct {
GLuint enabled:1;
GLuint source_index:3; /**< TEXTURE_x_INDEX */
GLuint NumArgsRGB:3; /**< up to MAX_COMBINER_TERMS */
GLuint ModeRGB:5; /**< MODE_x */
- struct mode_opt OptRGB[MAX_COMBINER_TERMS];
GLuint NumArgsA:3; /**< up to MAX_COMBINER_TERMS */
GLuint ModeA:5; /**< MODE_x */
+
+ GLuint texture_cyl_wrap:1; /**< For gallium test/debug only */
+
+ struct mode_opt OptRGB[MAX_COMBINER_TERMS];
struct mode_opt OptA[MAX_COMBINER_TERMS];
} unit[MAX_TEXTURE_UNITS];
};
}
+/**
+ * Do we need to clamp the results of the given texture env/combine mode?
+ * If the inputs to the mode are in [0,1] we don't always have to clamp
+ * the results.
+ */
+static GLboolean
+need_saturate( GLuint mode )
+{
+ switch (mode) {
+ case MODE_REPLACE:
+ case MODE_MODULATE:
+ case MODE_INTERPOLATE:
+ return GL_FALSE;
+ case MODE_ADD:
+ case MODE_ADD_SIGNED:
+ case MODE_SUBTRACT:
+ case MODE_DOT3_RGB:
+ case MODE_DOT3_RGB_EXT:
+ case MODE_DOT3_RGBA:
+ case MODE_DOT3_RGBA_EXT:
+ case MODE_MODULATE_ADD_ATI:
+ case MODE_MODULATE_SIGNED_ADD_ATI:
+ case MODE_MODULATE_SUBTRACT_ATI:
+ case MODE_ADD_PRODUCTS:
+ case MODE_ADD_PRODUCTS_SIGNED:
+ case MODE_BUMP_ENVMAP_ATI:
+ return GL_TRUE;
+ default:
+ assert(0);
+ return GL_FALSE;
+ }
+}
+
+
+
/**
* Translate TEXTURE_x_BIT to TEXTURE_x_INDEX.
*/
* has access to. The bitmask is later reduced to just those which
* are actually referenced.
*/
-static GLbitfield get_fp_input_mask( GLcontext *ctx )
+static GLbitfield get_fp_input_mask( struct gl_context *ctx )
{
/* _NEW_PROGRAM */
const GLboolean vertexShader = (ctx->Shader.CurrentProgram &&
else {
/* calculate from vp->outputs */
struct gl_vertex_program *vprog;
- GLbitfield vp_outputs;
+ GLbitfield64 vp_outputs;
/* Choose GLSL vertex shader over ARB vertex program. Need this
* since vertex shader state validation comes after fragment state
* Examine current texture environment state and generate a unique
* key to identify it.
*/
-static void make_state_key( GLcontext *ctx, struct state_key *key )
+static GLuint make_state_key( struct gl_context *ctx, struct state_key *key )
{
GLuint i, j;
GLbitfield inputs_referenced = FRAG_BIT_COL0;
const GLbitfield inputs_available = get_fp_input_mask( ctx );
+ GLuint keySize;
memset(key, 0, sizeof(*key));
key->unit[i].enabled = 1;
key->enabled_units |= (1<<i);
- key->nr_enabled_units = i+1;
+ key->nr_enabled_units = i + 1;
inputs_referenced |= FRAG_BIT_TEX(i);
key->unit[i].source_index =
key->unit[i].OptRGB[1].Operand = OPR_SRC_COLOR;
key->unit[i].OptRGB[1].Source = texUnit->BumpTarget - GL_TEXTURE0 + SRC_TEXTURE0;
}
+
+ /* this is a back-door for enabling cylindrical texture wrap mode */
+ if (texObj->Priority == 0.125)
+ key->unit[i].texture_cyl_wrap = 1;
}
/* _NEW_LIGHT | _NEW_FOG */
inputs_referenced |= FRAG_BIT_FOGC; /* maybe */
}
+ /* _NEW_BUFFERS */
+ key->num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers;
+
key->inputs_available = (inputs_available & inputs_referenced);
+
+ /* compute size of state key, ignoring unused texture units */
+ keySize = sizeof(*key) - sizeof(key->unit)
+ + key->nr_enabled_units * sizeof(key->unit[0]);
+
+ return keySize;
}
+
/**
* Use uregs to represent registers internally, translate to Mesa's
* expected formats on emit.
*/
struct texenv_fragment_program {
struct gl_fragment_program *program;
- GLcontext *ctx;
struct state_key *state;
GLbitfield alu_temps; /**< Track texture indirections, see spec. */
if (!bit) {
_mesa_problem(NULL, "%s: out of temporaries\n", __FILE__);
- _mesa_exit(1);
+ exit(1);
}
if ((GLuint) bit > p->program->Base.NumTemporaries)
if (!bit) {
_mesa_problem(NULL, "%s: out of temporaries\n", __FILE__);
- _mesa_exit(1);
+ exit(1);
}
if ((GLuint) bit > p->program->Base.NumTemporaries)
}
-static void release_temps(GLcontext *ctx, struct texenv_fragment_program *p )
+static void release_temps(struct gl_context *ctx, struct texenv_fragment_program *p )
{
GLuint max_temp = ctx->Const.FragmentProgram.MaxTemps;
static void program_error( struct texenv_fragment_program *p, const char *msg )
{
- _mesa_problem(NULL, msg);
+ _mesa_problem(NULL, "%s", msg);
p->error = 1;
}
{
GLuint i, numArgs = key->unit[unit].NumArgsRGB;
- for (i = 0 ; i < numArgs ; i++) {
+ for (i = 0; i < numArgs; i++) {
if (key->unit[unit].OptA[i].Source != key->unit[unit].OptRGB[i].Source)
return GL_FALSE;
assert(nr <= MAX_COMBINER_TERMS);
- tmp = undef; /* silence warning (bug 5318) */
-
for (i = 0; i < nr; i++)
src[i] = emit_combine_source( p, mask, unit, opt[i].Source, opt[i].Operand );
emit_arith( p, OPCODE_MAD, tmp0, WRITEMASK_XYZW, 0,
two, src[0], neg1);
- if (_mesa_memcmp(&src[0], &src[1], sizeof(struct ureg)) == 0)
+ if (memcmp(&src[0], &src[1], sizeof(struct ureg)) == 0)
tmp1 = tmp0;
else
emit_arith( p, OPCODE_MAD, tmp1, WRITEMASK_XYZW, 0,
emit_texenv(struct texenv_fragment_program *p, GLuint unit)
{
const struct state_key *key = p->state;
- GLboolean saturate;
+ GLboolean rgb_saturate, alpha_saturate;
GLuint rgb_shift, alpha_shift;
struct ureg out, dest;
/* 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 (rgb_shift)
+ rgb_saturate = GL_FALSE; /* saturate after rgb shift */
+ else if (need_saturate(key->unit[unit].ModeRGB))
+ rgb_saturate = GL_TRUE;
+ else
+ rgb_saturate = GL_FALSE;
+
+ if (alpha_shift)
+ alpha_saturate = GL_FALSE; /* saturate after alpha shift */
+ else if (need_saturate(key->unit[unit].ModeA))
+ alpha_saturate = GL_TRUE;
+ else
+ alpha_saturate = GL_FALSE;
- /* If this is the very last calculation, emit direct to output reg:
+ /* If this is the very last calculation (and various other conditions
+ * are met), emit directly to the color output register. Otherwise,
+ * emit to a temporary register.
*/
if (key->separate_specular ||
unit != p->last_tex_stage ||
alpha_shift ||
+ key->num_draw_buffers != 1 ||
rgb_shift)
dest = get_temp( p );
else
*/
if (key->unit[unit].ModeRGB == key->unit[unit].ModeA &&
args_match(key, unit)) {
- out = emit_combine( p, dest, WRITEMASK_XYZW, saturate,
+ out = emit_combine( p, dest, WRITEMASK_XYZW, rgb_saturate,
unit,
key->unit[unit].NumArgsRGB,
key->unit[unit].ModeRGB,
}
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,
+ out = emit_combine( p, dest, WRITEMASK_XYZW, rgb_saturate,
unit,
key->unit[unit].NumArgsRGB,
key->unit[unit].ModeRGB,
/* Need to do something to stop from re-emitting identical
* argument calculations here:
*/
- out = emit_combine( p, dest, WRITEMASK_XYZ, saturate,
+ out = emit_combine( p, dest, WRITEMASK_XYZ, rgb_saturate,
unit,
key->unit[unit].NumArgsRGB,
key->unit[unit].ModeRGB,
key->unit[unit].OptRGB);
- out = emit_combine( p, dest, WRITEMASK_W, saturate,
+ out = emit_combine( p, dest, WRITEMASK_W, alpha_saturate,
unit,
key->unit[unit].NumArgsA,
key->unit[unit].ModeA,
*/
if (alpha_shift || rgb_shift) {
struct ureg shift;
-
- saturate = GL_TRUE; /* always saturate at this point */
+ GLboolean saturate = GL_TRUE; /* always saturate at this point */
if (rgb_shift == alpha_shift) {
shift = register_scalar_const(p, (GLfloat)(1<<rgb_shift));
}
else
p->src_texture[unit] = get_zero(p);
+
+ if (p->state->unit[unit].texture_cyl_wrap) {
+ /* set flag which is checked by Mesa->Gallium program translation */
+ p->program->Base.InputFlags[0] |= PROG_PARAM_BIT_CYL_WRAP;
+ }
+
}
}
* 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 )
{
const struct state_key *key = p->state;
GLuint 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 )
{
const struct state_key *key = p->state;
GLuint bumpedUnitNr = key->unit[unit].OptRGB[1].Source - SRC_TEXTURE0;
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;
}
* current texture env/combine mode.
*/
static void
-create_new_program(GLcontext *ctx, struct state_key *key,
+create_new_program(struct gl_context *ctx, struct state_key *key,
struct gl_fragment_program *program)
{
struct prog_instruction instBuffer[MAX_INSTRUCTIONS];
struct texenv_fragment_program p;
GLuint unit;
struct ureg cf, out;
+ int i;
- _mesa_memset(&p, 0, sizeof(p));
- p.ctx = ctx;
+ memset(&p, 0, sizeof(p));
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 = 0x0;
- p.program->Base.InputsRead = 0;
- p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR;
+ if (key->num_draw_buffers == 1)
+ p.program->Base.OutputsWritten = 1 << FRAG_RESULT_COLOR;
+ else {
+ for (i = 0; i < key->num_draw_buffers; i++)
+ p.program->Base.OutputsWritten |= (1 << (FRAG_RESULT_DATA0 + i));
+ }
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
p.src_texture[unit] = undef;
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 < key->nr_enabled_units; 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 < key->nr_enabled_units; 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 < key->nr_enabled_units; 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 */
}
cf = get_source( &p, SRC_PREVIOUS, 0 );
- out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_COLOR );
- if (key->separate_specular) {
- /* Emit specular add.
- */
- struct ureg s = register_input(&p, FRAG_ATTRIB_COL1);
- emit_arith( &p, OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, undef );
- emit_arith( &p, OPCODE_MOV, out, WRITEMASK_W, 0, cf, undef, undef );
- }
- else if (_mesa_memcmp(&cf, &out, sizeof(cf)) != 0) {
- /* Will wind up in here if no texture enabled or a couple of
- * other scenarios (GL_REPLACE for instance).
- */
- emit_arith( &p, OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef );
- }
+ for (i = 0; i < key->num_draw_buffers; i++) {
+ if (key->num_draw_buffers == 1)
+ out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_COLOR );
+ else {
+ out = make_ureg( PROGRAM_OUTPUT, FRAG_RESULT_DATA0 + i );
+ }
+ if (key->separate_specular) {
+ /* Emit specular add.
+ */
+ struct ureg s = register_input(&p, FRAG_ATTRIB_COL1);
+ emit_arith( &p, OPCODE_ADD, out, WRITEMASK_XYZ, 0, cf, s, undef );
+ emit_arith( &p, OPCODE_MOV, out, WRITEMASK_W, 0, cf, undef, undef );
+ }
+ else if (memcmp(&cf, &out, sizeof(cf)) != 0) {
+ /* Will wind up in here if no texture enabled or a couple of
+ * other scenarios (GL_REPLACE for instance).
+ */
+ emit_arith( &p, OPCODE_MOV, out, WRITEMASK_XYZW, 0, cf, undef, undef );
+ }
+ }
/* Finish up:
*/
emit_arith( &p, OPCODE_END, undef, WRITEMASK_XYZW, 0, undef, undef, undef);
if (key->fog_enabled) {
- /* Pull fog mode from GLcontext, the value in the state key is
+ /* Pull fog mode from struct gl_context, the value in the state key is
* 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");
/* Notify driver the fragment program has (actually) changed.
*/
if (ctx->Driver.ProgramStringNotify) {
- ctx->Driver.ProgramStringNotify( ctx, GL_FRAGMENT_PROGRAM_ARB,
- &p.program->Base );
+ GLboolean ok = ctx->Driver.ProgramStringNotify(ctx,
+ GL_FRAGMENT_PROGRAM_ARB,
+ &p.program->Base);
+ /* Driver should be able to handle any texenv programs as long as
+ * the driver correctly reported max number of texture units correctly,
+ * etc.
+ */
+ ASSERT(ok);
+ (void) ok; /* silence unused var warning */
}
if (DISASSEM) {
_mesa_print_program(&p.program->Base);
- _mesa_printf("\n");
+ printf("\n");
}
}
* fixed-function texture, fog and color-sum operations.
*/
struct gl_fragment_program *
-_mesa_get_fixed_func_fragment_program(GLcontext *ctx)
+_mesa_get_fixed_func_fragment_program(struct gl_context *ctx)
{
struct gl_fragment_program *prog;
struct state_key key;
+ GLuint keySize;
- make_state_key(ctx, &key);
+ keySize = make_state_key(ctx, &key);
prog = (struct gl_fragment_program *)
_mesa_search_program_cache(ctx->FragmentProgram.Cache,
- &key, sizeof(key));
+ &key, keySize);
if (!prog) {
prog = (struct gl_fragment_program *)
create_new_program(ctx, &key, prog);
_mesa_program_cache_insert(ctx, ctx->FragmentProgram.Cache,
- &key, sizeof(key), &prog->Base);
+ &key, keySize, &prog->Base);
}
return prog;
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