diff options
Diffstat (limited to 'src/mesa/swrast/s_triangle.c')
| -rw-r--r-- | src/mesa/swrast/s_triangle.c | 1930 |
1 files changed, 944 insertions, 986 deletions
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c index 82c690502bf..29805a537a6 100644 --- a/src/mesa/swrast/s_triangle.c +++ b/src/mesa/swrast/s_triangle.c @@ -1,4 +1,4 @@ -/* $Id: s_triangle.c,v 1.25 2001/05/03 22:13:32 brianp Exp $ */ +/* $Id: s_triangle.c,v 1.26 2001/05/14 16:23:04 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -47,6 +47,9 @@ #include "s_feedback.h" #include "s_span.h" #include "s_triangle.h" +#include "s_trispan.h" + + GLboolean _mesa_cull_triangle( GLcontext *ctx, const SWvertex *v0, @@ -78,23 +81,18 @@ static void flat_ci_triangle( GLcontext *ctx, #define INTERP_Z 1 #define INTERP_FOG 1 -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - const GLint n = RIGHT-LEFT; \ - GLint i; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - if (n>0) { \ - for (i=0;i<n;i++) { \ - zspan[i] = FixedToDepth(ffz); \ - ffz += fdzdx; \ - fogspan[i] = ffog; \ - ffog += dfogdx; \ - } \ - _mesa_write_monoindex_span( ctx, n, LEFT, Y, zspan, \ - fogspan, v0->index, GL_POLYGON ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLdepth zSpan[MAX_WIDTH]; \ + GLfloat fogSpan[MAX_WIDTH]; \ + GLuint i; \ + for (i = 0; i < span.count; i++) { \ + zSpan[i] = FixedToDepth(span.z); \ + span.z += span.zStep; \ + fogSpan[i] = span.fog; \ + span.fog += span.fogStep; \ + } \ + _mesa_write_monoindex_span(ctx, span.count, span.x, span.y, \ + zSpan, fogSpan, v0->index, GL_POLYGON ); #include "s_tritemp.h" } @@ -113,26 +111,21 @@ static void smooth_ci_triangle( GLcontext *ctx, #define INTERP_FOG 1 #define INTERP_INDEX 1 -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - const GLint n = RIGHT-LEFT; \ - GLint i; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLuint index[MAX_WIDTH]; \ - if (n>0) { \ - for (i=0;i<n;i++) { \ - zspan[i] = FixedToDepth(ffz); \ - ffz += fdzdx; \ - index[i] = FixedToInt(ffi); \ - ffi += fdidx; \ - fogspan[i] = ffog; \ - ffog += dfogdx; \ - } \ - _mesa_write_index_span( ctx, n, LEFT, Y, zspan, fogspan, \ - index, GL_POLYGON ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLdepth zSpan[MAX_WIDTH]; \ + GLfloat fogSpan[MAX_WIDTH]; \ + GLuint indexSpan[MAX_WIDTH]; \ + GLuint i; \ + for (i = 0; i < span.count; i++) { \ + zSpan[i] = FixedToDepth(span.z); \ + span.z += span.zStep; \ + indexSpan[i] = FixedToInt(span.index); \ + span.index += span.indexStep; \ + fogSpan[i] = span.fog; \ + span.fog += span.fogStep; \ + } \ + _mesa_write_index_span(ctx, span.count, span.x, span.y, \ + zSpan, fogSpan, indexSpan, GL_POLYGON); #include "s_tritemp.h" } @@ -151,24 +144,18 @@ static void flat_rgba_triangle( GLcontext *ctx, #define INTERP_FOG 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - const GLint n = RIGHT-LEFT; \ - GLint i; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - if (n>0) { \ - for (i=0;i<n;i++) { \ - zspan[i] = FixedToDepth(ffz); \ - ffz += fdzdx; \ - fogspan[i] = ffog; \ - ffog += dfogdx; \ - } \ - _mesa_write_monocolor_span( ctx, n, LEFT, Y, zspan, \ - fogspan, v2->color, \ - GL_POLYGON ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLdepth zSpan[MAX_WIDTH]; \ + GLfloat fogSpan[MAX_WIDTH]; \ + GLuint i; \ + for (i = 0; i < span.count; i++) { \ + zSpan[i] = FixedToDepth(span.z); \ + span.z += span.zStep; \ + fogSpan[i] = span.fog; \ + span.fog += span.fogStep; \ + } \ + _mesa_write_monocolor_span(ctx, span.count, span.x, span.y, \ + zSpan, fogSpan, v2->color, GL_POLYGON ); #include "s_tritemp.h" @@ -193,34 +180,28 @@ static void smooth_rgba_triangle( GLcontext *ctx, #define INTERP_RGB 1 #define INTERP_ALPHA 1 -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - const GLint n = RIGHT-LEFT; \ - GLint i; \ - GLdepth zspan[MAX_WIDTH]; \ - GLchan rgba[MAX_WIDTH][4]; \ - GLfloat fogspan[MAX_WIDTH]; \ - if (n>0) { \ - for (i=0;i<n;i++) { \ - zspan[i] = FixedToDepth(ffz); \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - fogspan[i] = ffog;; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ffog += dfogdx; \ - } \ - _mesa_write_rgba_span( ctx, n, LEFT, Y, \ - (CONST GLdepth *) zspan, \ - fogspan, \ - rgba, GL_POLYGON ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLdepth zSpan[MAX_WIDTH]; \ + GLchan rgbaSpan[MAX_WIDTH][4]; \ + GLfloat fogSpan[MAX_WIDTH]; \ + GLuint i; \ + for (i = 0; i < span.count; i++) { \ + rgbaSpan[i][RCOMP] = FixedToInt(span.red); \ + rgbaSpan[i][GCOMP] = FixedToInt(span.green); \ + rgbaSpan[i][BCOMP] = FixedToInt(span.blue); \ + rgbaSpan[i][ACOMP] = FixedToInt(span.alpha); \ + span.red += span.redStep; \ + span.green += span.greenStep; \ + span.blue += span.blueStep; \ + span.alpha += span.alphaStep; \ + zSpan[i] = FixedToDepth(span.z); \ + span.z += span.zStep; \ + fogSpan[i] = span.fog; \ + span.fog += span.fogStep; \ + } \ + _mesa_write_rgba_span(ctx, span.count, span.x, span.y, \ + (CONST GLdepth *) zSpan, \ + fogSpan, rgbaSpan, GL_POLYGON); #include "s_tritemp.h" @@ -243,44 +224,40 @@ static void simple_textured_triangle( GLcontext *ctx, #define INTERP_INT_TEX 1 #define S_SCALE twidth #define T_SCALE theight + #define SETUP_CODE \ SWcontext *swrast = SWRAST_CONTEXT(ctx); \ struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ GLint b = obj->BaseLevel; \ - GLfloat twidth = (GLfloat) obj->Image[b]->Width; \ - GLfloat theight = (GLfloat) obj->Image[b]->Height; \ - GLint twidth_log2 = obj->Image[b]->WidthLog2; \ + const GLfloat twidth = (GLfloat) obj->Image[b]->Width; \ + const GLfloat theight = (GLfloat) obj->Image[b]->Height; \ + const GLint twidth_log2 = obj->Image[b]->WidthLog2; \ const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \ - GLint smask = obj->Image[b]->Width - 1; \ - GLint tmask = obj->Image[b]->Height - 1; \ + const GLint smask = obj->Image[b]->Width - 1; \ + const GLint tmask = obj->Image[b]->Height - 1; \ if (!texture) { \ /* this shouldn't happen */ \ return; \ } -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - CONST GLint n = RIGHT-LEFT; \ - GLint i; \ - GLchan rgb[MAX_WIDTH][3]; \ - if (n>0) { \ - ffs -= FIXED_HALF; /* off-by-one error? */ \ - fft -= FIXED_HALF; \ - for (i=0;i<n;i++) { \ - GLint s = FixedToInt(ffs) & smask; \ - GLint t = FixedToInt(fft) & tmask; \ - GLint pos = (t << twidth_log2) + s; \ - pos = pos + pos + pos; /* multiply by 3 */ \ - rgb[i][RCOMP] = texture[pos]; \ - rgb[i][GCOMP] = texture[pos+1]; \ - rgb[i][BCOMP] = texture[pos+2]; \ - ffs += fdsdx; \ - fft += fdtdx; \ - } \ - (*swrast->Driver.WriteRGBSpan)( ctx, n, LEFT, Y, \ - (CONST GLchan (*)[3]) rgb, NULL ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLchan rgbSpan[MAX_WIDTH][3]; \ + GLuint i; \ + span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \ + span.intTex[1] -= FIXED_HALF; \ + for (i = 0; i < span.count; i++) { \ + GLint s = FixedToInt(span.intTex[0]) & smask; \ + GLint t = FixedToInt(span.intTex[1]) & tmask; \ + GLint pos = (t << twidth_log2) + s; \ + pos = pos + pos + pos; /* multiply by 3 */ \ + rgbSpan[i][RCOMP] = texture[pos]; \ + rgbSpan[i][GCOMP] = texture[pos+1]; \ + rgbSpan[i][BCOMP] = texture[pos+2]; \ + span.intTex[0] += span.intTexStep[0]; \ + span.intTex[1] += span.intTexStep[1]; \ + } \ + (*swrast->Driver.WriteRGBSpan)(ctx, span.count, span.x, span.y, \ + (CONST GLchan (*)[3]) rgbSpan, NULL ); #include "s_tritemp.h" } @@ -303,6 +280,7 @@ static void simple_z_textured_triangle( GLcontext *ctx, #define INTERP_INT_TEX 1 #define S_SCALE twidth #define T_SCALE theight + #define SETUP_CODE \ SWcontext *swrast = SWRAST_CONTEXT(ctx); \ struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ @@ -318,110 +296,58 @@ static void simple_z_textured_triangle( GLcontext *ctx, return; \ } -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - CONST GLint n = RIGHT-LEFT; \ - GLint i; \ - GLchan rgb[MAX_WIDTH][3]; \ - GLubyte mask[MAX_WIDTH]; \ - if (n>0) { \ - ffs -= FIXED_HALF; /* off-by-one error? */ \ - fft -= FIXED_HALF; \ - for (i=0;i<n;i++) { \ - GLdepth z = FixedToDepth(ffz); \ - if (z < zRow[i]) { \ - GLint s = FixedToInt(ffs) & smask; \ - GLint t = FixedToInt(fft) & tmask; \ - GLint pos = (t << twidth_log2) + s; \ - pos = pos + pos + pos; /* multiply by 3 */ \ - rgb[i][RCOMP] = texture[pos]; \ - rgb[i][GCOMP] = texture[pos+1]; \ - rgb[i][BCOMP] = texture[pos+2]; \ - zRow[i] = z; \ - mask[i] = 1; \ - } \ - else { \ - mask[i] = 0; \ - } \ - ffz += fdzdx; \ - ffs += fdsdx; \ - fft += fdtdx; \ - } \ - (*swrast->Driver.WriteRGBSpan)( ctx, n, LEFT, Y, \ - (CONST GLchan (*)[3]) rgb, mask ); \ - } \ - } +#define RENDER_SPAN( span ) \ + GLchan rgbSpan[MAX_WIDTH][3]; \ + GLubyte mask[MAX_WIDTH]; \ + GLuint i; \ + span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \ + span.intTex[1] -= FIXED_HALF; \ + for (i = 0; i < span.count; i++) { \ + const GLdepth z = FixedToDepth(span.z); \ + if (z < zRow[i]) { \ + GLint s = FixedToInt(span.intTex[0]) & smask; \ + GLint t = FixedToInt(span.intTex[1]) & tmask; \ + GLint pos = (t << twidth_log2) + s; \ + pos = pos + pos + pos; /* multiply by 3 */ \ + rgbSpan[i][RCOMP] = texture[pos]; \ + rgbSpan[i][GCOMP] = texture[pos+1]; \ + rgbSpan[i][BCOMP] = texture[pos+2]; \ + zRow[i] = z; \ + mask[i] = 1; \ + } \ + else { \ + mask[i] = 0; \ + } \ + span.intTex[0] += span.intTexStep[0]; \ + span.intTex[1] += span.intTexStep[1]; \ + span.z += span.zStep; \ + } \ + (*swrast->Driver.WriteRGBSpan)(ctx, span.count, span.x, span.y, \ + (CONST GLchan (*)[3]) rgbSpan, mask ); #include "s_tritemp.h" } -/* - * Render an RGB/RGBA textured triangle without perspective correction. - */ -static void affine_textured_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) +struct affine_info { -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_INT_TEX 1 -#define S_SCALE twidth -#define T_SCALE theight -#define SETUP_CODE \ - struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ - struct gl_texture_object *obj = unit->Current2D; \ - GLint b = obj->BaseLevel; \ - GLfloat twidth = (GLfloat) obj->Image[b]->Width; \ - GLfloat theight = (GLfloat) obj->Image[b]->Height; \ - GLint twidth_log2 = obj->Image[b]->WidthLog2; \ - const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \ - GLint smask = obj->Image[b]->Width - 1; \ - GLint tmask = obj->Image[b]->Height - 1; \ - GLint format = obj->Image[b]->Format; \ - GLint filter = obj->MinFilter; \ - GLint envmode = unit->EnvMode; \ - GLint comp, tbytesline, tsize; \ - GLfixed er, eg, eb, ea; \ - GLint tr, tg, tb, ta; \ - if (!texture) { \ - /* this shouldn't happen */ \ - return; \ - } \ - if (envmode == GL_BLEND || envmode == GL_ADD) { \ - /* potential off-by-one error here? (1.0f -> 2048 -> 0) */ \ - er = FloatToFixed(unit->EnvColor[RCOMP]); \ - eg = FloatToFixed(unit->EnvColor[GCOMP]); \ - eb = FloatToFixed(unit->EnvColor[BCOMP]); \ - ea = FloatToFixed(unit->EnvColor[ACOMP]); \ - } \ - switch (format) { \ - case GL_ALPHA: \ - case GL_LUMINANCE: \ - case GL_INTENSITY: \ - comp = 1; \ - break; \ - case GL_LUMINANCE_ALPHA: \ - comp = 2; \ - break; \ - case GL_RGB: \ - comp = 3; \ - break; \ - case GL_RGBA: \ - comp = 4; \ - break; \ - default: \ - _mesa_problem(NULL, "Bad texture format in affine_texture_triangle");\ - return; \ - } \ - tbytesline = obj->Image[b]->Width * comp; \ - tsize = obj->Image[b]->Height * tbytesline; + GLenum filter; + GLenum format; + GLenum envmode; + GLint smask, tmask; + GLint twidth_log2; + const GLchan *texture; + GLchan er, eg, eb, ea; + GLint tbytesline, tsize; + GLint fixedToDepthShift; +}; +static void +affine_span(GLcontext *ctx, struct triangle_span *span, + struct affine_info *info) +{ + GLint tr, tg, tb, ta; /* Instead of defining a function for each mode, a test is done * between the outer and inner loops. This is to reduce code size @@ -429,66 +355,75 @@ static void affine_textured_triangle( GLcontext *ctx, * unused variables (for instance tf,sf,ti,si in case of GL_NEAREST). */ -#define NEAREST_RGB \ - tr = tex00[RCOMP]; \ - tg = tex00[GCOMP]; \ - tb = tex00[BCOMP]; \ +#define NEAREST_RGB \ + tr = tex00[RCOMP]; \ + tg = tex00[GCOMP]; \ + tb = tex00[BCOMP]; \ ta = 0xff -#define LINEAR_RGB \ - tr = (ti * (si * tex00[0] + sf * tex01[0]) + \ - tf * (si * tex10[0] + sf * tex11[0])) >> 2 * FIXED_SHIFT; \ - tg = (ti * (si * tex00[1] + sf * tex01[1]) + \ - tf * (si * tex10[1] + sf * tex11[1])) >> 2 * FIXED_SHIFT; \ - tb = (ti * (si * tex00[2] + sf * tex01[2]) + \ - tf * (si * tex10[2] + sf * tex11[2])) >> 2 * FIXED_SHIFT; \ +#define LINEAR_RGB \ + tr = (ti * (si * tex00[0] + sf * tex01[0]) + \ + tf * (si * tex10[0] + sf * tex11[0])) >> 2 * FIXED_SHIFT; \ + tg = (ti * (si * tex00[1] + sf * tex01[1]) + \ + tf * (si * tex10[1] + sf * tex11[1])) >> 2 * FIXED_SHIFT; \ + tb = (ti * (si * tex00[2] + sf * tex01[2]) + \ + tf * (si * tex10[2] + sf * tex11[2])) >> 2 * FIXED_SHIFT; \ ta = 0xff -#define NEAREST_RGBA \ - tr = tex00[RCOMP]; \ - tg = tex00[GCOMP]; \ - tb = tex00[BCOMP]; \ +#define NEAREST_RGBA \ + tr = tex00[RCOMP]; \ + tg = tex00[GCOMP]; \ + tb = tex00[BCOMP]; \ ta = tex00[ACOMP] -#define LINEAR_RGBA \ - tr = (ti * (si * tex00[0] + sf * tex01[0]) + \ - tf * (si * tex10[0] + sf * tex11[0])) >> 2 * FIXED_SHIFT; \ - tg = (ti * (si * tex00[1] + sf * tex01[1]) + \ - tf * (si * tex10[1] + sf * tex11[1])) >> 2 * FIXED_SHIFT; \ - tb = (ti * (si * tex00[2] + sf * tex01[2]) + \ - tf * (si * tex10[2] + sf * tex11[2])) >> 2 * FIXED_SHIFT; \ - ta = (ti * (si * tex00[3] + sf * tex01[3]) + \ +#define LINEAR_RGBA \ + tr = (ti * (si * tex00[0] + sf * tex01[0]) + \ + tf * (si * tex10[0] + sf * tex11[0])) >> 2 * FIXED_SHIFT; \ + tg = (ti * (si * tex00[1] + sf * tex01[1]) + \ + tf * (si * tex10[1] + sf * tex11[1])) >> 2 * FIXED_SHIFT; \ + tb = (ti * (si * tex00[2] + sf * tex01[2]) + \ + tf * (si * tex10[2] + sf * tex11[2])) >> 2 * FIXED_SHIFT; \ + ta = (ti * (si * tex00[3] + sf * tex01[3]) + \ tf * (si * tex10[3] + sf * tex11[3])) >> 2 * FIXED_SHIFT -#define MODULATE \ - dest[RCOMP] = ffr * (tr + 1) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ffg * (tg + 1) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ffb * (tb + 1) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = ffa * (ta + 1) >> (FIXED_SHIFT + 8) - -#define DECAL \ - dest[RCOMP] = ((0xff - ta) * ffr + ((ta + 1) * tr << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ((0xff - ta) * ffg + ((ta + 1) * tg << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ((0xff - ta) * ffb + ((ta + 1) * tb << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = FixedToInt(ffa) - -#define BLEND \ - dest[RCOMP] = ((0xff - tr) * ffr + (tr + 1) * er) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ((0xff - tg) * ffg + (tg + 1) * eg) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ((0xff - tb) * ffb + (tb + 1) * eb) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = ffa * (ta + 1) >> (FIXED_SHIFT + 8) - -#define REPLACE \ - dest[RCOMP] = tr; \ - dest[GCOMP] = tg; \ - dest[BCOMP] = tb; \ +#define MODULATE \ + dest[RCOMP] = span->red * (tr + 1) >> (FIXED_SHIFT + 8); \ + dest[GCOMP] = span->green * (tg + 1) >> (FIXED_SHIFT + 8); \ + dest[BCOMP] = span->blue * (tb + 1) >> (FIXED_SHIFT + 8); \ + dest[ACOMP] = span->alpha * (ta + 1) >> (FIXED_SHIFT + 8) + +#define DECAL \ + dest[RCOMP] = ((0xff - ta) * span->red \ + + ((ta + 1) * tr << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ + dest[GCOMP] = ((0xff - ta) * span->green \ + + ((ta + 1) * tg << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ + dest[BCOMP] = ((0xff - ta) * span->blue \ + + ((ta + 1) * tb << FIXED_SHIFT)) >> (FIXED_SHIFT + 8); \ + dest[ACOMP] = FixedToInt(span->alpha) + +#define BLEND \ + dest[RCOMP] = ((0xff - tr) * span->red \ + + (tr + 1) * info->er) >> (FIXED_SHIFT + 8); \ + dest[GCOMP] = ((0xff - tg) * span->green \ + + (tg + 1) * info->eg) >> (FIXED_SHIFT + 8); \ + dest[BCOMP] = ((0xff - tb) * span->blue \ + + (tb + 1) * info->eb) >> (FIXED_SHIFT + 8); \ + dest[ACOMP] = span->alpha * (ta + 1) >> (FIXED_SHIFT + 8) + +#define REPLACE \ + dest[RCOMP] = tr; \ + dest[GCOMP] = tg; \ + dest[BCOMP] = tb; \ dest[ACOMP] = ta -#define ADD \ - dest[RCOMP] = ((ffr << 8) + (tr + 1) * er) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ((ffg << 8) + (tg + 1) * eg) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ((ffb << 8) + (tb + 1) * eb) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = ffa * (ta + 1) >> (FIXED_SHIFT + 8) +#define ADD \ + dest[RCOMP] = ((span->red << 8) \ + + (tr + 1) * info->er) >> (FIXED_SHIFT + 8); \ + dest[GCOMP] = ((span->green << 8) \ + + (tg + 1) * info->eg) >> (FIXED_SHIFT + 8); \ + dest[BCOMP] = ((span->blue << 8) \ + + (tb + 1) * info->eb) >> (FIXED_SHIFT + 8); \ + dest[ACOMP] = span->alpha * (ta + 1) >> (FIXED_SHIFT + 8) /* shortcuts */ @@ -496,181 +431,252 @@ static void affine_textured_triangle( GLcontext *ctx, #define NEAREST_RGBA_REPLACE *(GLint *)dest = *(GLint *)tex00 -#define SPAN1(DO_TEX,COMP) \ - for (i=0;i<n;i++) { \ - GLint s = FixedToInt(ffs) & smask; \ - GLint t = FixedToInt(fft) & tmask; \ - GLint pos = (t << twidth_log2) + s; \ - const GLchan *tex00 = texture + COMP * pos; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog;; \ - DO_TEX; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ffs += fdsdx; \ - fft += fdtdx; \ - dest += 4; \ +#define SPAN1(DO_TEX,COMP) \ + for (i = 0; i < span->count; i++) { \ + GLint s = FixedToInt(span->intTex[0]) & info->smask; \ + GLint t = FixedToInt(span->intTex[1]) & info->tmask; \ + GLint pos = (t << info->twidth_log2) + s; \ + const GLchan *tex00 = info->texture + COMP * pos; \ + zspan[i] = FixedToDepth(span->z); \ + fogspan[i] = span->fog; \ + DO_TEX; \ + span->fog += span->fogStep; \ + span->z += span->zStep; \ + span->red += span->redStep; \ + span->green += span->greenStep; \ + span->blue += span->blueStep; \ + span->alpha += span->alphaStep; \ + span->intTex[0] += span->intTexStep[0]; \ + span->intTex[1] += span->intTexStep[1]; \ + dest += 4; \ } -#define SPAN2(DO_TEX,COMP) \ - for (i=0;i<n;i++) { \ - GLint s = FixedToInt(ffs) & smask; \ - GLint t = FixedToInt(fft) & tmask; \ - GLint sf = ffs & FIXED_FRAC_MASK; \ - GLint tf = fft & FIXED_FRAC_MASK; \ - GLint si = FIXED_FRAC_MASK - sf; \ - GLint ti = FIXED_FRAC_MASK - tf; \ - GLint pos = (t << twidth_log2) + s; \ - const GLchan *tex00 = texture + COMP * pos; \ - const GLchan *tex10 = tex00 + tbytesline; \ - const GLchan *tex01 = tex00 + COMP; \ - const GLchan *tex11 = tex10 + COMP; \ - if (t == tmask) { \ - tex10 -= tsize; \ - tex11 -= tsize; \ - } \ - if (s == smask) { \ - tex01 -= tbytesline; \ - tex11 -= tbytesline; \ - } \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - DO_TEX; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ffs += fdsdx; \ - fft += fdtdx; \ - dest += 4; \ +#define SPAN2(DO_TEX,COMP) \ + for (i = 0; i < span->count; i++) { \ + GLint s = FixedToInt(span->intTex[0]) & info->smask; \ + GLint t = FixedToInt(span->intTex[1]) & info->tmask; \ + GLint sf = span->intTex[0] & FIXED_FRAC_MASK; \ + GLint tf = span->intTex[1] & FIXED_FRAC_MASK; \ + GLint si = FIXED_FRAC_MASK - sf; \ + GLint ti = FIXED_FRAC_MASK - tf; \ + GLint pos = (t << info->twidth_log2) + s; \ + const GLchan *tex00 = info->texture + COMP * pos; \ + const GLchan *tex10 = tex00 + info->tbytesline; \ + const GLchan *tex01 = tex00 + COMP; \ + const GLchan *tex11 = tex10 + COMP; \ + (void) ti; \ + (void) si; \ + if (t == info->tmask) { \ + tex10 -= info->tsize; \ + tex11 -= info->tsize; \ + } \ + if (s == info->smask) { \ + tex01 -= info->tbytesline; \ + tex11 -= info->tbytesline; \ + } \ + zspan[i] = FixedToDepth(span->z); \ + fogspan[i] = span->fog; \ + DO_TEX; \ + span->fog += span->fogStep; \ + span->z += span->zStep; \ + span->red += span->redStep; \ + span->green += span->greenStep; \ + span->blue += span->blueStep; \ + span->alpha += span->alphaStep; \ + span->intTex[0] += span->intTexStep[0]; \ + span->intTex[1] += span->intTexStep[1]; \ + dest += 4; \ } -/* here comes the heavy part.. (something for the compiler to chew on) */ -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - CONST GLint n = RIGHT-LEFT; \ - GLint i; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLchan rgba[MAX_WIDTH][4]; \ - if (n>0) { \ - GLchan *dest = rgba[0]; \ - ffs -= FIXED_HALF; /* off-by-one error? */ \ - fft -= FIXED_HALF; \ - switch (filter) { \ - case GL_NEAREST: \ - switch (format) { \ - case GL_RGB: \ - switch (envmode) { \ - case GL_MODULATE: \ - SPAN1(NEAREST_RGB;MODULATE,3); \ - break; \ - case GL_DECAL: \ - case GL_REPLACE: \ - SPAN1(NEAREST_RGB_REPLACE,3); \ - break; \ - case GL_BLEND: \ - SPAN1(NEAREST_RGB;BLEND,3); \ - break; \ - case GL_ADD: \ - SPAN1(NEAREST_RGB;ADD,3); \ - break; \ - default: /* unexpected env mode */ \ - abort(); \ - } \ - break; \ - case GL_RGBA: \ - switch(envmode) { \ - case GL_MODULATE: \ - SPAN1(NEAREST_RGBA;MODULATE,4); \ - break; \ - case GL_DECAL: \ - SPAN1(NEAREST_RGBA;DECAL,4); \ - break; \ - case GL_BLEND: \ - SPAN1(NEAREST_RGBA;BLEND,4); \ - break; \ - case GL_ADD: \ - SPAN1(NEAREST_RGBA;ADD,4); \ - break; \ - case GL_REPLACE: \ - SPAN1(NEAREST_RGBA_REPLACE,4); \ - break; \ - default: /* unexpected env mode */ \ - abort(); \ - } \ - break; \ - } \ - break; \ - case GL_LINEAR: \ - ffs -= FIXED_HALF; \ - fft -= FIXED_HALF; \ - switch (format) { \ - case GL_RGB: \ - switch (envmode) { \ - case GL_MODULATE: \ - SPAN2(LINEAR_RGB;MODULATE,3); \ - break; \ - case GL_DECAL: \ - case GL_REPLACE: \ - SPAN2(LINEAR_RGB;REPLACE,3); \ - break; \ - case GL_BLEND: \ - SPAN2(LINEAR_RGB;BLEND,3); \ - break; \ - case GL_ADD: \ - SPAN2(LINEAR_RGB;ADD,3); \ - break; \ - default: /* unexpected env mode */ \ - abort(); \ - } \ - break; \ - case GL_RGBA: \ - switch (envmode) { \ - case GL_MODULATE: \ - SPAN2(LINEAR_RGBA;MODULATE,4); \ - break; \ - case GL_DECAL: \ - SPAN2(LINEAR_RGBA;DECAL,4); \ - break; \ - case GL_BLEND: \ - SPAN2(LINEAR_RGBA;BLEND,4); \ - break; \ - case GL_ADD: \ - SPAN2(LINEAR_RGBA;ADD,4); \ - break; \ - case GL_REPLACE: \ - SPAN2(LINEAR_RGBA;REPLACE,4); \ - break; \ - default: /* unexpected env mode */ \ - abort(); \ - } \ - break; \ - } \ - break; \ - } \ - _mesa_write_rgba_span(ctx, n, LEFT, Y, zspan, \ - fogspan, \ - rgba, GL_POLYGON); \ - /* explicit kill of variables: */ \ - ffr = ffg = ffb = ffa = 0; \ - } \ - } +#define FixedToDepth(F) ((F) >> fixedToDepthShift) + + GLuint i; + GLdepth zspan[MAX_WIDTH]; + GLfloat fogspan[MAX_WIDTH]; + GLchan rgba[MAX_WIDTH][4]; + GLchan *dest = rgba[0]; + const GLint fixedToDepthShift = info->fixedToDepthShift; + + span->intTex[0] -= FIXED_HALF; + span->intTex[1] -= FIXED_HALF; + switch (info->filter) { + case GL_NEAREST: + switch (info->format) { + case GL_RGB: + switch (info->envmode) { + case GL_MODULATE: + SPAN1(NEAREST_RGB;MODULATE,3); + break; + case GL_DECAL: + case GL_REPLACE: + SPAN1(NEAREST_RGB_REPLACE,3); + break; + case GL_BLEND: + SPAN1(NEAREST_RGB;BLEND,3); + break; + case GL_ADD: + SPAN1(NEAREST_RGB;ADD,3); + break; + default: + abort(); + } + break; + case GL_RGBA: + switch(info->envmode) { + case GL_MODULATE: + SPAN1(NEAREST_RGBA;MODULATE,4); + break; + case GL_DECAL: + SPAN1(NEAREST_RGBA;DECAL,4); + break; + case GL_BLEND: + SPAN1(NEAREST_RGBA;BLEND,4); + break; + case GL_ADD: + SPAN1(NEAREST_RGBA;ADD,4); + break; + case GL_REPLACE: + SPAN1(NEAREST_RGBA_REPLACE,4); + break; + default: + abort(); + } + break; + } + break; + + case GL_LINEAR: + span->intTex[0] -= FIXED_HALF; + span->intTex[1] -= FIXED_HALF; + switch (info->format) { + case GL_RGB: + switch (info->envmode) { + case GL_MODULATE: + SPAN2(LINEAR_RGB;MODULATE,3); + break; + case GL_DECAL: + case GL_REPLACE: + SPAN2(LINEAR_RGB;REPLACE,3); + break; + case GL_BLEND: + SPAN2(LINEAR_RGB;BLEND,3); + break; + case GL_ADD: + SPAN2(LINEAR_RGB;ADD,3); + break; + default: + abort(); + } + break; + case GL_RGBA: + switch (info->envmode) { + case GL_MODULATE: + SPAN2(LINEAR_RGBA;MODULATE,4); + break; + case GL_DECAL: + SPAN2(LINEAR_RGBA;DECAL,4); + break; + case GL_BLEND: + SPAN2(LINEAR_RGBA;BLEND,4); + break; + case GL_ADD: + SPAN2(LINEAR_RGBA;ADD,4); + break; + case GL_REPLACE: + SPAN2(LINEAR_RGBA;REPLACE,4); + break; + default: + abort(); + } break; + } + break; + } + _mesa_write_rgba_span(ctx, span->count, span->x, span->y, + zspan, fogspan, rgba, GL_POLYGON); -#include "s_tritemp.h" #undef SPAN1 #undef SPAN2 +#undef FixedToDepth } /* + * Render an RGB/RGBA textured triangle without perspective correction. + */ +static void affine_textured_triangle( GLcontext *ctx, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2 ) +{ +#define INTERP_Z 1 +#define INTERP_FOG 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define INTERP_ALPHA 1 +#define INTERP_INT_TEX 1 +#define S_SCALE twidth +#define T_SCALE theight + +#define SETUP_CODE + struct affine_info info; + struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ + struct gl_texture_object *obj = unit->Current2D; \ + GLint b = obj->BaseLevel; \ + GLfloat twidth = (GLfloat) obj->Image[b]->Width; \ + GLfloat theight = (GLfloat) obj->Image[b]->Height; \ + info.fixedToDepthShift = ctx->Visual.depthBits <= 16 ? FIXED_SHIFT : 0;\ + info.texture = (const GLchan *) obj->Image[b]->Data; \ + info.twidth_log2 = obj->Image[b]->WidthLog2; \ + info.smask = obj->Image[b]->Width - 1; \ + info.tmask = obj->Image[b]->Height - 1; \ + info.format = obj->Image[b]->Format; \ + info.filter = obj->MinFilter; \ + info.envmode = unit->EnvMode; \ + \ + if (info.envmode == GL_BLEND) { \ + /* potential off-by-one error here? (1.0f -> 2048 -> 0) */ \ + info.er = FloatToFixed(unit->EnvColor[RCOMP]); \ + info.eg = FloatToFixed(unit->EnvColor[GCOMP]); \ + info.eb = FloatToFixed(unit->EnvColor[BCOMP]); \ + info.ea = FloatToFixed(unit->EnvColor[ACOMP]); \ + } \ + if (!info.texture) { \ + /* this shouldn't happen */ \ + return; \ + } \ + \ + switch (info.format) { \ + case GL_ALPHA: \ + case GL_LUMINANCE: \ + case GL_INTENSITY: \ + info.tbytesline = obj->Image[b]->Width; \ + break; \ + case GL_LUMINANCE_ALPHA: \ + info.tbytesline = obj->Image[b]->Width * 2; \ + break; \ + case GL_RGB: \ + info.tbytesline = obj->Image[b]->Width * 3; \ + break; \ + case GL_RGBA: \ + info.tbytesline = obj->Image[b]->Width * 4; \ + break; \ + default: \ + _mesa_problem(NULL, "Bad texture format in affine_texture_triangle");\ + return; \ + } \ + info.tsize = obj->Image[b]->Height * info.tbytesline; + +#define RENDER_SPAN( span ) \ + affine_span(ctx, &span, &info); + +#include "s_tritemp.h" + +} + + +#if 0 /* XXX disabled because of texcoord interpolation errors */ +/* * Render an perspective corrected RGB/RGBA textured triangle. * The Q (aka V in Mesa) coordinate must be zero such that the divide * by interpolated Q/W comes out right. @@ -681,7 +687,6 @@ static void affine_textured_triangle( GLcontext *ctx, * This function written by Klaus Niederkrueger <[email protected]> * Send all questions and bug reports to him. */ -#if 0 /* XXX disabled because of texcoord interpolation errors */ static void near_persp_textured_triangle(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1, @@ -701,6 +706,7 @@ static void near_persp_textured_triangle(GLcontext *ctx, #define INTERP_RGB 1 #define INTERP_ALPHA 1 #define INTERP_TEX 1 + #define SETUP_CODE \ struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ struct gl_texture_object *obj = unit->Current2D; \ @@ -737,15 +743,15 @@ static void near_persp_textured_triangle(GLcontext *ctx, GLint t = (int)(TT * invQ + BIAS) & tmask; \ GLint pos = COMP * ((t << twidth_log2) + s); \ const GLchan *tex00 = texture + pos; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ + zspan[i] = FixedToDepth(span.z); \ + fogspan[i] = span.fog; \ DO_TEX; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ + span.fog += span.fogStep; \ + span.z += span.zStep; \ + span.red += span.redStep; \ + span.green += span.greenStep; \ + span.blue += span.blueStep; \ + span.alpha += span.alphaStep; \ SS += dSdx; \ TT += dTdx; \ vv += dvdx; \ @@ -907,15 +913,15 @@ static void near_persp_textured_triangle(GLcontext *ctx, if (j>n || j<-100000) \ j = n; \ while (i<j) { \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ + zspan[i] = FixedToDepth(span.z); \ + fogspan[i] = span.fog; \ DO_TEX; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ + span.fog += span.fogStep; \ + span.z += span.zStep; \ + span.red += span.redStep; \ + span.green += span.greenStep; \ + span.blue += span.blueStep; \ + span.alpha += span.alphaStep; \ dest += 4; \ i++; \ } \ @@ -1395,7 +1401,7 @@ static void near_persp_textured_triangle(GLcontext *ctx, } \ _mesa_write_rgba_span( ctx, n, LEFT, Y, zspan, \ fogspan, rgba, GL_POLYGON); \ - ffr = ffg = ffb = ffa = 0; \ + span.red = span.green = span.blue = span.alpha = 0; \ } \ } \ @@ -1413,6 +1419,7 @@ static void near_persp_textured_triangle(GLcontext *ctx, #endif +#if 0 /* XXX disabled because of texcoord interpolation errors */ /* * Render an perspective corrected RGB/RGBA textured triangle. * The Q (aka V in Mesa) coordinate must be zero such that the divide @@ -1421,7 +1428,6 @@ static void near_persp_textured_triangle(GLcontext *ctx, * This function written by Klaus Niederkrueger <[email protected]> * Send all questions and bug reports to him. */ -#if 0 /* XXX disabled because of texcoord interpolation errors */ static void lin_persp_textured_triangle( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1, @@ -1433,6 +1439,7 @@ static void lin_persp_textured_triangle( GLcontext *ctx, #define INTERP_RGB 1 #define INTERP_ALPHA 1 #define INTERP_TEX 1 + #define SETUP_CODE \ struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ struct gl_texture_object *obj = unit->Current2D; \ @@ -1483,43 +1490,43 @@ static void lin_persp_textured_triangle( GLcontext *ctx, tsize = theight * tbytesline; -#define SPAN(DO_TEX,COMP) \ - for (i=0;i<n;i++) { \ - GLfloat invQ = 1.0f / vv; \ - GLfixed ffs = (int)(SS * invQ); \ - GLfixed fft = (int)(TT * invQ); \ - GLint s = FixedToInt(ffs) & smask; \ - GLint t = FixedToInt(fft) & tmask; \ - GLint sf = ffs & FIXED_FRAC_MASK; \ - GLint tf = fft & FIXED_FRAC_MASK; \ - GLint si = FIXED_FRAC_MASK - sf; \ - GLint ti = FIXED_FRAC_MASK - tf; \ - GLint pos = COMP * ((t << twidth_log2) + s); \ - GLchan *tex00 = texture + pos; \ - GLchan *tex10 = tex00 + tbytesline; \ - GLchan *tex01 = tex00 + COMP; \ - GLchan *tex11 = tex10 + COMP; \ - if (t == tmask) { \ - tex10 -= tsize; \ - tex11 -= tsize; \ - } \ - if (s == smask) { \ - tex01 -= tbytesline; \ - tex11 -= tbytesline; \ - } \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - DO_TEX; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - SS += dSdx; \ - TT += dTdx; \ - vv += dvdx; \ - dest += 4; \ +#define SPAN(DO_TEX,COMP) \ + for (i=0;i<n;i++) { \ + GLfloat invQ = 1.0f / vv; \ + GLfixed span.intTex[0] = (int)(SS * invQ); \ + GLfixed span.intTex[1] = (int)(TT * invQ); \ + GLint s = FixedToInt(span.intTex[0]) & smask; \ + GLint t = FixedToInt(span.intTex[1]) & tmask; \ + GLint sf = span.intTex[0] & FIXED_FRAC_MASK; \ + GLint tf = span.intTex[1] & FIXED_FRAC_MASK; \ + GLint si = FIXED_FRAC_MASK - sf; \ + GLint ti = FIXED_FRAC_MASK - tf; \ + GLint pos = COMP * ((t << twidth_log2) + s); \ + GLchan *tex00 = texture + pos; \ + GLchan *tex10 = tex00 + tbytesline; \ + GLchan *tex01 = tex00 + COMP; \ + GLchan *tex11 = tex10 + COMP; \ + if (t == tmask) { \ + tex10 -= tsize; \ + tex11 -= tsize; \ + } \ + if (s == smask) { \ + tex01 -= tbytesline; \ + tex11 -= tbytesline; \ + } \ + zspan[i] = FixedToDepth(span.z); \ + fogspan[i] = span.fog; \ + DO_TEX; \ + span.fog += span.fogStep; \ + span.z += span.zStep; \ + span.red += span.redStep; \ + span.green += span.greenStep; \ + span.blue += span.blueStep; \ + span.alpha += span.alphaStep; \ + SS += dSdx; \ + TT += dTdx; \ + vv += dvdx; \ + dest += 4; \ } #define INNER_LOOP( LEFT, RIGHT, Y ) \ @@ -1582,7 +1589,6 @@ static void lin_persp_textured_triangle( GLcontext *ctx, _mesa_write_rgba_span( ctx, n, LEFT, Y, zspan, \ fogspan, \ rgba, GL_POLYGON ); \ - ffr = ffg = ffb = ffa = 0; \ } \ } @@ -1593,10 +1599,252 @@ static void lin_persp_textured_triangle( GLcontext *ctx, /* + * Generate arrays of fragment colors, z, fog, texcoords, etc from a + * triangle span object. Then call the span/fragment processsing + * functions in s_span.[ch]. + */ +static void +rasterize_span(GLcontext *ctx, const struct triangle_span *span) +{ + GLchan rgba[MAX_WIDTH][4]; + GLchan spec[MAX_WIDTH][4]; + GLuint index[MAX_WIDTH]; + GLuint z[MAX_WIDTH]; + GLfloat fog[MAX_WIDTH]; + GLfloat sTex[MAX_WIDTH], tTex[MAX_WIDTH], rTex[MAX_WIDTH]; + GLfloat lambda[MAX_WIDTH]; + GLfloat msTex[MAX_TEXTURE_UNITS][MAX_WIDTH]; + GLfloat mtTex[MAX_TEXTURE_UNITS][MAX_WIDTH]; + GLfloat mrTex[MAX_TEXTURE_UNITS][MAX_WIDTH]; + GLfloat mLambda[MAX_TEXTURE_UNITS][MAX_WIDTH]; + + if (span->activeMask & SPAN_RGBA) { + GLfixed r = span->red; + GLfixed g = span->green; + GLfixed b = span->blue; + GLfixed a = span->alpha; + GLuint i; + for (i = 0; i < span->count; i++) { + rgba[i][RCOMP] = FixedToInt(r); + rgba[i][GCOMP] = FixedToInt(g); + rgba[i][BCOMP] = FixedToInt(b); + rgba[i][ACOMP] = FixedToInt(a); + r += span->redStep; + g += span->greenStep; + b += span->blueStep; + a += span->alphaStep; + } + } + if (span->activeMask & SPAN_SPEC) { + GLfixed r = span->specRed; + GLfixed g = span->specGreen; + GLfixed b = span->specBlue; + GLuint i; + for (i = 0; i < span->count; i++) { + spec[i][RCOMP] = FixedToInt(r); + spec[i][GCOMP] = FixedToInt(g); + spec[i][BCOMP] = FixedToInt(b); + r += span->specRedStep; + g += span->specGreenStep; + b += span->specBlueStep; + } + } + if (span->activeMask & SPAN_INDEX) { + GLuint i; + GLfixed ind = span->index; + for (i = 0; i < span->count; i++) { + index[i] = FixedToInt(ind); + ind += span->indexStep; + } + } + if (span->activeMask & SPAN_Z) { + if (ctx->Visual.depthBits <= 16) { + GLuint i; + GLfixed zval = span->z; + for (i = 0; i < span->count; i++) { + z[i] = FixedToInt(zval); + zval += span->zStep; + } + } + else { + /* Deep Z buffer, no fixed->int shift */ + GLuint i; + GLfixed zval = span->z; + for (i = 0; i < span->count; i++) { + z[i] = zval; + zval += span->zStep; + } + } + } + if (span->activeMask & SPAN_FOG) { + GLuint i; + GLfloat f = span->fog; + for (i = 0; i < span->count; i++) { + fog[i] = f; + f += span->fogStep; + } + } + if (span->activeMask & SPAN_TEXTURE) { + if (ctx->Texture._ReallyEnabled & ~TEXTURE0_ANY) { + /* multitexture */ + if (span->activeMask & SPAN_LAMBDA) { + /* with lambda */ + GLuint u; + for (u = 0; u < MAX_TEXTURE_UNITS; u++) { + if (ctx->Texture.Unit[u]._ReallyEnabled) { + GLfloat s = span->tex[u][0]; + GLfloat t = span->tex[u][1]; + GLfloat r = span->tex[u][2]; + GLfloat q = span->tex[u][3]; + GLuint i; + for (i = 0; i < span->count; i++) { + const GLfloat invQ = (q == 0.0F) ? 1.0 : (1.0F / q); + msTex[u][i] = s * invQ; + mtTex[u][i] = t * invQ; + mrTex[u][i] = r * invQ; + mLambda[u][i] = log(span->rho[u] * invQ * invQ) * 1.442695F * 0.5F; + s += span->texStep[u][0]; + t += span->texStep[u][1]; + r += span->texStep[u][2]; + q += span->texStep[u][3]; + } + } + } + } + else { + /* without lambda */ + GLuint u; + for (u = 0; u < MAX_TEXTURE_UNITS; u++) { + if (ctx->Texture.Unit[u]._ReallyEnabled) { + GLfloat s = span->tex[u][0]; + GLfloat t = span->tex[u][1]; + GLfloat r = span->tex[u][2]; + GLfloat q = span->tex[u][3]; + GLuint i; + for (i = 0; i < span->count; i++) { + const GLfloat invQ = (q == 0.0F) ? 1.0 : (1.0F / q); + msTex[u][i] = s * invQ; + mtTex[u][i] = t * invQ; + mrTex[u][i] = r * invQ; + s += span->texStep[u][0]; + t += span->texStep[u][1]; + r += span->texStep[u][2]; + q += span->texStep[u][3]; + } + } + } + } + } + else { + /* just texture unit 0 */ + if (span->activeMask & SPAN_LAMBDA) { + /* with lambda */ + GLfloat s = span->tex[0][0]; + GLfloat t = span->tex[0][1]; + GLfloat r = span->tex[0][2]; + GLfloat q = span->tex[0][3]; + GLuint i; + for (i = 0; i < span->count; i++) { + const GLfloat invQ = (q == 0.0F) ? 1.0 : (1.0F / q); + sTex[i] = s * invQ; + tTex[i] = t * invQ; + rTex[i] = r * invQ; + lambda[i] = log(span->rho[0] * invQ * invQ) * 1.442695F * 0.5F; + s += span->texStep[0][0]; + t += span->texStep[0][1]; + r += span->texStep[0][2]; + q += span->texStep[0][3]; + } + } + else { + /* without lambda */ + GLfloat s = span->tex[0][0]; + GLfloat t = span->tex[0][1]; + GLfloat r = span->tex[0][2]; + GLfloat q = span->tex[0][3]; + GLuint i; + for (i = 0; i < span->count; i++) { + const GLfloat invQ = (q == 0.0F) ? 1.0 : (1.0F / q); + sTex[i] = s * invQ; + tTex[i] = t * invQ; + rTex[i] = r * invQ; + s += span->texStep[0][0]; + t += span->texStep[0][1]; + r += span->texStep[0][2]; + q += span->texStep[0][3]; + } + } + } + } + /* XXX keep this? */ + if (span->activeMask & SPAN_INT_TEXTURE) { + GLint intTexcoord[MAX_WIDTH][2]; + GLfixed s = span->intTex[0]; + GLfixed t = span->intTex[1]; + GLuint i; + for (i = 0; i < span->count; i++) { + intTexcoord[i][0] = FixedToInt(s); + intTexcoord[i][1] = FixedToInt(t); + s += span->intTexStep[0]; + t += span->intTexStep[1]; + } + } + + /* examine activeMask and call a s_span.c function */ + if (span->activeMask & SPAN_TEXTURE) { + const GLfloat *fogPtr; + if (span->activeMask & SPAN_FOG) + fogPtr = fog; + else + fogPtr = NULL; + + if (ctx->Texture._ReallyEnabled & ~TEXTURE0_ANY) { + if (span->activeMask & SPAN_SPEC) { + _mesa_write_multitexture_span(ctx, span->count, span->x, span->y, + z, fogPtr, + (const GLfloat (*)[MAX_WIDTH]) msTex, + (const GLfloat (*)[MAX_WIDTH]) mtTex, + (const GLfloat (*)[MAX_WIDTH]) mrTex, + (GLfloat (*)[MAX_WIDTH]) mLambda, + rgba, (CONST GLchan (*)[4]) spec, + GL_POLYGON ); + } + else { + _mesa_write_multitexture_span(ctx, span->count, span->x, span->y, + z, fogPtr, + (const GLfloat (*)[MAX_WIDTH]) msTex, + (const GLfloat (*)[MAX_WIDTH]) mtTex, + (const GLfloat (*)[MAX_WIDTH]) mrTex, + (GLfloat (*)[MAX_WIDTH]) mLambda, + rgba, NULL, GL_POLYGON); + } + } + else { + /* single texture */ + if (span->activeMask & SPAN_SPEC) { + _mesa_write_texture_span(ctx, span->count, span->x, span->y, + z, fogPtr, sTex, tTex, rTex, lambda, + rgba, (CONST GLchan (*)[4]) spec, + GL_POLYGON); + } + else { + _mesa_write_texture_span(ctx, span->count, span->x, span->y, + z, fogPtr, sTex, tTex, rTex, lambda, + rgba, NULL, GL_POLYGON); + } + } + } + else { + _mesa_problem(ctx, "rasterize_span() should only be used for texturing"); + } +} + + + + +/* * Render a smooth-shaded, textured, RGBA triangle. - * Interpolate S,T,U with perspective correction, w/out mipmapping. - * Note: we use texture coordinates S,T,U,V instead of S,T,R,Q because - * R is already used for red. + * Interpolate S,T,R with perspective correction, w/out mipmapping. */ static void general_textured_triangle( GLcontext *ctx, const SWvertex *v0, @@ -1609,73 +1857,60 @@ static void general_textured_triangle( GLcontext *ctx, #define INTERP_RGB 1 #define INTERP_ALPHA 1 #define INTERP_TEX 1 -#define SETUP_CODE \ - GLboolean flat_shade = (ctx->Light.ShadeModel==GL_FLAT); \ - GLint r, g, b, a; \ - if (flat_shade) { \ - r = v2->color[RCOMP]; \ - g = v2->color[GCOMP]; \ - b = v2->color[BCOMP]; \ - a = v2->color[ACOMP]; \ - } -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint n = RIGHT-LEFT; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLchan rgba[MAX_WIDTH][4]; \ - GLfloat s[MAX_WIDTH], t[MAX_WIDTH], u[MAX_WIDTH]; \ - if (n>0) { \ - if (flat_shade) { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = r; \ - rgba[i][GCOMP] = g; \ - rgba[i][BCOMP] = b; \ - rgba[i][ACOMP] = a; \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - else { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - fogspan[i] = ffog; \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - _mesa_write_texture_span( ctx, n, LEFT, Y, zspan, \ - fogspan, s, t, u, NULL, \ - rgba, NULL, GL_POLYGON ); \ - } \ - } + +#define SETUP_CODE \ + const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; \ + const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];\ + const GLboolean flatShade = (ctx->Light.ShadeModel==GL_FLAT); \ + GLfixed rFlat, gFlat, bFlat, aFlat; \ + if (flatShade) { \ + rFlat = IntToFixed(v2->color[RCOMP]); \ + gFlat = IntToFixed(v2->color[GCOMP]); \ + bFlat = IntToFixed(v2->color[BCOMP]); \ + aFlat = IntToFixed(v2->color[ACOMP]); \ + } \ + span.texWidth[0] = (GLfloat) texImage->Width; \ + span.texHeight[0] = (GLfloat) texImage->Height; \ + (void) fixedToDepthShift; + +#define RENDER_SPAN( span ) \ + GLdepth zSpan[MAX_WIDTH]; \ + GLfloat fogSpan[MAX_WIDTH]; \ + GLchan rgbaSpan[MAX_WIDTH][4]; \ + GLfloat sSpan[MAX_WIDTH], tSpan[MAX_WIDTH], uSpan[MAX_WIDTH]; \ + GLuint i; \ + if (flatShade) { \ + span.red = rFlat; span.redStep = 0; \ + span.green = gFlat; span.greenStep = 0; \ + span.blue = bFlat; span.blueStep = 0; \ + span.alpha = aFlat; span.alphaStep = 0; \ + } \ + /* NOTE: we could just call rasterize_span() here instead */ \ + for (i = 0; i < span.count; i++) { \ + GLdouble invQ = span.tex[0][3] ? (1.0 / span.tex[0][3]) : 1.0; \ + zSpan[i] = FixedToDepth(span.z); \ + span.z += span.zStep; \ + fogSpan[i] = span.fog; \ + span.fog += span.fogStep; \ + rgbaSpan[i][RCOMP] = FixedToInt(span.red); \ + rgbaSpan[i][GCOMP] = FixedToInt(span.green); \ + rgbaSpan[i][BCOMP] = FixedToInt(span.blue); \ + rgbaSpan[i][ACOMP] = FixedToInt(span.alpha); \ + span.red += span.redStep; \ + span.green += span.greenStep; \ + span.blue += span.blueStep; \ + span.alpha += span.alphaStep; \ + sSpan[i] = span.tex[0][0] * invQ; \ + tSpan[i] = span.tex[0][1] * invQ; \ + uSpan[i] = span.tex[0][2] * invQ; \ + span.tex[0][0] += span.texStep[0][0]; \ + span.tex[0][1] += span.texStep[0][1]; \ + span.tex[0][2] += span.texStep[0][2]; \ + span.tex[0][3] += span.texStep[0][3]; \ + } \ + _mesa_write_texture_span(ctx, span.count, span.x, span.y, \ + zSpan, fogSpan, sSpan, tSpan, uSpan, \ + NULL, rgbaSpan, NULL, GL_POLYGON ); #include "s_tritemp.h" } @@ -1684,18 +1919,12 @@ static void general_textured_triangle( GLcontext *ctx, /* * Render a smooth-shaded, textured, RGBA triangle with separate specular * color interpolation. - * Interpolate S,T,U with perspective correction, w/out mipmapping. - * Note: we use texture coordinates S,T,U,V instead of S,T,R,Q because - * R is already used for red. + * Interpolate texcoords with perspective correction, w/out mipmapping. */ -static void general_textured_spec_triangle1( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2, - GLdepth zspan[MAX_WIDTH], - GLfloat fogspan[MAX_WIDTH], - GLchan rgba[MAX_WIDTH][4], - GLchan spec[MAX_WIDTH][4] ) +static void general_textured_spec_triangle( GLcontext *ctx, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2 ) { #define INTERP_Z 1 #define INTERP_FOG 1 @@ -1704,84 +1933,37 @@ static void general_textured_spec_triangle1( GLcontext *ctx, #define INTERP_SPEC 1 #define INTERP_ALPHA 1 #define INTERP_TEX 1 -#define SETUP_CODE \ - GLboolean flat_shade = (ctx->Light.ShadeModel==GL_FLAT); \ - GLint r, g, b, a, sr, sg, sb; \ - if (flat_shade) { \ - r = v2->color[RCOMP]; \ - g = v2->color[GCOMP]; \ - b = v2->color[BCOMP]; \ - a = v2->color[ACOMP]; \ - sr = v2->specular[RCOMP]; \ - sg = v2->specular[GCOMP]; \ - sb = v2->specular[BCOMP]; \ - } -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint n = RIGHT-LEFT; \ - GLfloat s[MAX_WIDTH], t[MAX_WIDTH], u[MAX_WIDTH]; \ - if (n>0) { \ - if (flat_shade) { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = r; \ - rgba[i][GCOMP] = g; \ - rgba[i][BCOMP] = b; \ - rgba[i][ACOMP] = a; \ - spec[i][RCOMP] = sr; \ - spec[i][GCOMP] = sg; \ - spec[i][BCOMP] = sb; \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - else { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - spec[i][RCOMP] = FixedToInt(ffsr); \ - spec[i][GCOMP] = FixedToInt(ffsg); \ - spec[i][BCOMP] = FixedToInt(ffsb); \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ffsr += fdsrdx; \ - ffsg += fdsgdx; \ - ffsb += fdsbdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - _mesa_write_texture_span( ctx, n, LEFT, Y, zspan, \ - fogspan, \ - s, t, u, NULL, rgba, \ - (CONST GLchan (*)[4]) spec, \ - GL_POLYGON ); \ - } \ - } + +#define SETUP_CODE \ + const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; \ + const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];\ + const GLboolean flatShade = (ctx->Light.ShadeModel == GL_FLAT); \ + GLfixed rFlat, gFlat, bFlat, aFlat; \ + GLfixed srFlat, sgFlat, sbFlat; \ + if (flatShade) { \ + rFlat = IntToFixed(v2->color[RCOMP]); \ + gFlat = IntToFixed(v2->color[GCOMP]); \ + bFlat = IntToFixed(v2->color[BCOMP]); \ + aFlat = IntToFixed(v2->color[ACOMP]); \ + srFlat = IntToFixed(v2->specular[RCOMP]); \ + sgFlat = IntToFixed(v2->specular[GCOMP]); \ + sbFlat = IntToFixed(v2->specular[BCOMP]); \ + } \ + span.texWidth[0] = (GLfloat) texImage->Width; \ + span.texHeight[0] = (GLfloat) texImage->Height; \ + (void) fixedToDepthShift; + +#define RENDER_SPAN( span ) \ + if (flatShade) { \ + span.red = rFlat; span.redStep = 0; \ + span.green = gFlat; span.greenStep = 0; \ + span.blue = bFlat; span.blueStep = 0; \ + span.alpha = aFlat; span.alphaStep = 0; \ + span.specRed = srFlat; span.specRedStep = 0; \ + span.specGreen = sgFlat; span.specGreenStep = 0; \ + span.specBlue = sbFlat; span.specBlueStep = 0; \ + } \ + rasterize_span(ctx, &span); #include "s_tritemp.h" } @@ -1789,102 +1971,54 @@ static void general_textured_spec_triangle1( GLcontext *ctx, /* * Render a smooth-shaded, textured, RGBA triangle. - * Interpolate S,T,U with perspective correction and compute lambda for + * Interpolate S,T,R with perspective correction and compute lambda for * each fragment. Lambda is used to determine whether to use the * minification or magnification filter. If minification and using * mipmaps, lambda is also used to select the texture level of detail. */ -static void lambda_textured_triangle1( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2, - GLfloat s[MAX_WIDTH], - GLfloat t[MAX_WIDTH], - GLfloat u[MAX_WIDTH] ) +static void lambda_textured_triangle( GLcontext *ctx, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2 ) { #define INTERP_Z 1 #define INTERP_FOG 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE #define INTERP_RGB 1 #define INTERP_ALPHA 1 -#define INTERP_LAMBDA 1 #define INTERP_TEX 1 +#define INTERP_LAMBDA 1 #define SETUP_CODE \ const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; \ - const GLint baseLevel = obj->BaseLevel; \ - const struct gl_texture_image *texImage = obj->Image[baseLevel]; \ - const GLfloat twidth = (GLfloat) texImage->Width; \ - const GLfloat theight = (GLfloat) texImage->Height; \ - const GLboolean flat_shade = (ctx->Light.ShadeModel==GL_FLAT); \ - GLint r, g, b, a; \ - if (flat_shade) { \ - r = v2->color[RCOMP]; \ - g = v2->color[GCOMP]; \ - b = v2->color[BCOMP]; \ - a = v2->color[ACOMP]; \ - } - -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint n = RIGHT-LEFT; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLchan rgba[MAX_WIDTH][4]; \ - GLfloat lambda[MAX_WIDTH]; \ - if (n>0) { \ - if (flat_shade) { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = r; \ - rgba[i][GCOMP] = g; \ - rgba[i][BCOMP] = b; \ - rgba[i][ACOMP] = a; \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - COMPUTE_LAMBDA(lambda[i], invQ); \ - ffz += fdzdx; \ - ffog += dfogdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - else { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - COMPUTE_LAMBDA(lambda[i], invQ); \ - ffz += fdzdx; \ - ffog += dfogdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - _mesa_write_texture_span( ctx, n, LEFT, Y, zspan, fogspan, \ - s, t, u, lambda, \ - rgba, NULL, GL_POLYGON ); \ - } \ - } + const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];\ + const GLboolean flatShade = (ctx->Light.ShadeModel==GL_FLAT); \ + GLfixed rFlat, gFlat, bFlat, aFlat; \ + GLfixed srFlat, sgFlat, sbFlat; \ + if (flatShade) { \ + rFlat = IntToFixed(v2->color[RCOMP]); \ + gFlat = IntToFixed(v2->color[GCOMP]); \ + bFlat = IntToFixed(v2->color[BCOMP]); \ + aFlat = IntToFixed(v2->color[ACOMP]); \ + srFlat = IntToFixed(v2->specular[RCOMP]); \ + sgFlat = IntToFixed(v2->specular[GCOMP]); \ + sbFlat = IntToFixed(v2->specular[BCOMP]); \ + } \ + span.texWidth[0] = (GLfloat) texImage->Width; \ + span.texHeight[0] = (GLfloat) texImage->Height; \ + (void) fixedToDepthShift; + +#define RENDER_SPAN( span ) \ + if (flatShade) { \ + span.red = rFlat; span.redStep = 0; \ + span.green = gFlat; span.greenStep = 0; \ + span.blue = bFlat; span.blueStep = 0; \ + span.alpha = aFlat; span.alphaStep = 0; \ + span.specRed = srFlat; span.specRedStep = 0; \ + span.specGreen = sgFlat; span.specGreenStep = 0; \ + span.specBlue = sbFlat; span.specBlueStep = 0; \ + } \ + rasterize_span(ctx, &span); #include "s_tritemp.h" } @@ -1893,18 +2027,15 @@ static void lambda_textured_triangle1( GLcontext *ctx, /* * Render a smooth-shaded, textured, RGBA triangle with separate specular * interpolation. - * Interpolate S,T,U with perspective correction and compute lambda for + * Interpolate S,T,R with perspective correction and compute lambda for * each fragment. Lambda is used to determine whether to use the * minification or magnification filter. If minification and using * mipmaps, lambda is also used to select the texture level of detail. */ -static void lambda_textured_spec_triangle1( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2, - GLfloat s[MAX_WIDTH], - GLfloat t[MAX_WIDTH], - GLfloat u[MAX_WIDTH] ) +static void lambda_textured_spec_triangle( GLcontext *ctx, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2 ) { #define INTERP_Z 1 #define INTERP_FOG 1 @@ -1917,93 +2048,34 @@ static void lambda_textured_spec_triangle1( GLcontext *ctx, #define SETUP_CODE \ const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; \ - const GLint baseLevel = obj->BaseLevel; \ - const struct gl_texture_image *texImage = obj->Image[baseLevel]; \ - const GLfloat twidth = (GLfloat) texImage->Width; \ - const GLfloat theight = (GLfloat) texImage->Height; \ - const GLboolean flat_shade = (ctx->Light.ShadeModel==GL_FLAT); \ - GLint r, g, b, a, sr, sg, sb; \ - if (flat_shade) { \ - r = v2->color[RCOMP]; \ - g = v2->color[GCOMP]; \ - b = v2->color[BCOMP]; \ - a = v2->color[ACOMP]; \ - sr = v2->specular[RCOMP]; \ - sg = v2->specular[GCOMP]; \ - sb = v2->specular[BCOMP]; \ - } - -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint n = RIGHT-LEFT; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLchan spec[MAX_WIDTH][4]; \ - GLchan rgba[MAX_WIDTH][4]; \ - GLfloat lambda[MAX_WIDTH]; \ - if (n>0) { \ - if (flat_shade) { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = r; \ - rgba[i][GCOMP] = g; \ - rgba[i][BCOMP] = b; \ - rgba[i][ACOMP] = a; \ - spec[i][RCOMP] = sr; \ - spec[i][GCOMP] = sg; \ - spec[i][BCOMP] = sb; \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - COMPUTE_LAMBDA(lambda[i], invQ); \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - else { \ - for (i=0;i<n;i++) { \ - GLdouble invQ = vv ? (1.0 / vv) : 1.0; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - spec[i][RCOMP] = FixedToInt(ffsr); \ - spec[i][GCOMP] = FixedToInt(ffsg); \ - spec[i][BCOMP] = FixedToInt(ffsb); \ - s[i] = ss*invQ; \ - t[i] = tt*invQ; \ - u[i] = uu*invQ; \ - COMPUTE_LAMBDA(lambda[i], invQ); \ - ffog += dfogdx; \ - ffz += fdzdx; \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - ffsr += fdsrdx; \ - ffsg += fdsgdx; \ - ffsb += fdsbdx; \ - ss += dsdx; \ - tt += dtdx; \ - uu += dudx; \ - vv += dvdx; \ - } \ - } \ - _mesa_write_texture_span( ctx, n, LEFT, Y, zspan, \ - fogspan, s, t, u, lambda, \ - rgba, (CONST GLchan (*)[4]) spec, \ - GL_POLYGON ); \ - } \ - } + const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];\ + const GLboolean flatShade = (ctx->Light.ShadeModel == GL_FLAT); \ + GLfixed rFlat, gFlat, bFlat, aFlat; \ + GLfixed srFlat, sgFlat, sbFlat; \ + if (flatShade) { \ + rFlat = IntToFixed(v2->color[RCOMP]); \ + gFlat = IntToFixed(v2->color[GCOMP]); \ + bFlat = IntToFixed(v2->color[BCOMP]); \ + aFlat = IntToFixed(v2->color[ACOMP]); \ + srFlat = IntToFixed(v2->specular[RCOMP]); \ + sgFlat = IntToFixed(v2->specular[GCOMP]); \ + sbFlat = IntToFixed(v2->specular[BCOMP]); \ + } \ + span.texWidth[0] = (GLfloat) texImage->Width; \ + span.texHeight[0] = (GLfloat) texImage->Height; \ + (void) fixedToDepthShift; + +#define RENDER_SPAN( span ) \ + if (flatShade) { \ + span.red = rFlat; span.redStep = 0; \ + span.green = gFlat; span.greenStep = 0; \ + span.blue = bFlat; span.blueStep = 0; \ + span.alpha = aFlat; span.alphaStep = 0; \ + span.specRed = srFlat; span.specRedStep = 0; \ + span.specGreen = sgFlat; span.specGreenStep = 0; \ + span.specBlue = sbFlat; span.specBlueStep = 0; \ + } \ + rasterize_span(ctx, &span); #include "s_tritemp.h" } @@ -2011,182 +2083,69 @@ static void lambda_textured_spec_triangle1( GLcontext *ctx, /* * This is the big one! - * Interpolate Z, RGB, Alpha, and two sets of texture coordinates. + * Interpolate Z, RGB, Alpha, specular, fog, and N sets of texture coordinates + * with lambda (LOD). * Yup, it's slow. */ static void -lambda_multitextured_triangle1( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2, - GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH], - GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH], - GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH]) +lambda_multitextured_triangle( GLcontext *ctx, + const SWvertex *v0, + const SWvertex *v1, + const SWvertex *v2 ) { + #define INTERP_Z 1 #define INTERP_FOG 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE #define INTERP_RGB 1 #define INTERP_ALPHA 1 +#define INTERP_SPEC 1 #define INTERP_MULTITEX 1 -#define INTERP_MULTILAMBDA 1 +#define INTERP_LAMBDA 1 #define SETUP_CODE \ - GLchan rgba[MAX_WIDTH][4]; \ - const GLboolean flat_shade = (ctx->Light.ShadeModel==GL_FLAT); \ - GLfloat twidth[MAX_TEXTURE_UNITS], theight[MAX_TEXTURE_UNITS]; \ - GLint r, g, b, a; \ - if (flat_shade) { \ - r = v2->color[0]; \ - g = v2->color[1]; \ - b = v2->color[2]; \ - a = v2->color[3]; \ + const GLboolean flatShade = (ctx->Light.ShadeModel == GL_FLAT); \ + GLfixed rFlat, gFlat, bFlat, aFlat; \ + GLfixed srFlat, sgFlat, sbFlat; \ + GLuint u; \ + if (flatShade) { \ + rFlat = IntToFixed(v2->color[RCOMP]); \ + gFlat = IntToFixed(v2->color[GCOMP]); \ + bFlat = IntToFixed(v2->color[BCOMP]); \ + aFlat = IntToFixed(v2->color[ACOMP]); \ + srFlat = IntToFixed(v2->specular[RCOMP]); \ + sgFlat = IntToFixed(v2->specular[GCOMP]); \ + sbFlat = IntToFixed(v2->specular[BCOMP]); \ } \ - { \ - GLuint unit; \ - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { \ - if (ctx->Texture.Unit[unit]._ReallyEnabled) { \ - const struct gl_texture_object *obj = ctx->Texture.Unit[unit]._Current; \ - const GLint baseLevel = obj->BaseLevel; \ - const struct gl_texture_image *texImage = obj->Image[baseLevel];\ - twidth[unit] = (GLfloat) texImage->Width; \ - theight[unit] = (GLfloat) texImage->Height; \ - } \ - } \ - } - -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint n = RIGHT-LEFT; \ - GLdepth zspan[MAX_WIDTH]; \ - GLfloat fogspan[MAX_WIDTH]; \ - GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH]; \ - if (n > 0) { \ - if (flat_shade) { \ - for (i=0;i<n;i++) { \ - GLuint unit; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - ffog += dfogdx; \ - ffz += fdzdx; \ - rgba[i][RCOMP] = r; \ - rgba[i][GCOMP] = g; \ - rgba[i][BCOMP] = b; \ - rgba[i][ACOMP] = a; \ - for (unit=0; unit < ctx->Const.MaxTextureUnits; unit++) {\ - if (ctx->Texture.Unit[unit]._ReallyEnabled) { \ - GLdouble invQ = 1.0 / vv[unit]; \ - s[unit][i] = ss[unit] * invQ; \ - t[unit][i] = tt[unit] * invQ; \ - u[unit][i] = uu[unit] * invQ; \ - COMPUTE_MULTILAMBDA(lambda[unit][i], invQ, unit); \ - ss[unit] += dsdx[unit]; \ - tt[unit] += dtdx[unit]; \ - uu[unit] += dudx[unit]; \ - vv[unit] += dvdx[unit]; \ - } \ - } \ - } \ - } \ - else { /* smooth shade */ \ - for (i=0;i<n;i++) { \ - GLuint unit; \ - zspan[i] = FixedToDepth(ffz); \ - fogspan[i] = ffog; \ - ffz += fdzdx; \ - ffog += dfogdx; \ - rgba[i][RCOMP] = FixedToInt(ffr); \ - rgba[i][GCOMP] = FixedToInt(ffg); \ - rgba[i][BCOMP] = FixedToInt(ffb); \ - rgba[i][ACOMP] = FixedToInt(ffa); \ - ffr += fdrdx; \ - ffg += fdgdx; \ - ffb += fdbdx; \ - ffa += fdadx; \ - for (unit=0; unit < ctx->Const.MaxTextureUnits; unit++) {\ - if (ctx->Texture.Unit[unit]._ReallyEnabled) { \ - GLdouble invQ = 1.0 / vv[unit]; \ - s[unit][i] = ss[unit] * invQ; \ - t[unit][i] = tt[unit] * invQ; \ - u[unit][i] = uu[unit] * invQ; \ - COMPUTE_MULTILAMBDA(lambda[unit][i], invQ, unit); \ - ss[unit] += dsdx[unit]; \ - tt[unit] += dtdx[unit]; \ - uu[unit] += dudx[unit]; \ - vv[unit] += dvdx[unit]; \ - } \ - } \ - } \ - } \ - _mesa_write_multitexture_span(ctx, n, LEFT, Y, zspan, fogspan, \ - (const GLfloat (*)[MAX_WIDTH]) s,\ - (const GLfloat (*)[MAX_WIDTH]) t,\ - (const GLfloat (*)[MAX_WIDTH]) u,\ - (GLfloat (*)[MAX_WIDTH]) lambda, \ - rgba, NULL, GL_POLYGON ); \ + for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ + if (ctx->Texture.Unit[u]._ReallyEnabled) { \ + const struct gl_texture_object *texObj; \ + const struct gl_texture_image *texImage; \ + texObj = ctx->Texture.Unit[u]._Current; \ + texImage = texObj->Image[texObj->BaseLevel]; \ + span.texWidth[u] = (GLfloat) texImage->Width; \ + span.texHeight[u] = (GLfloat) texImage->Height; \ } \ - } + } \ + (void) fixedToDepthShift; + +#define RENDER_SPAN( span ) \ + if (flatShade) { \ + span.red = rFlat; span.redStep = 0; \ + span.green = gFlat; span.greenStep = 0; \ + span.blue = bFlat; span.blueStep = 0; \ + span.alpha = aFlat; span.alphaStep = 0; \ + span.specRed = srFlat; span.specRedStep = 0; \ + span.specGreen = sgFlat; span.specGreenStep = 0; \ + span.specBlue = sbFlat; span.specBlueStep = 0; \ + } \ + rasterize_span(ctx, &span); #include "s_tritemp.h" -} - - -/* - * These wrappers are needed to deal with the 32KB / stack frame limit - * on Mac / PowerPC systems. - */ - -static void general_textured_spec_triangle(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - GLdepth zspan[MAX_WIDTH]; - GLfloat fogspan[MAX_WIDTH]; - GLchan rgba[MAX_WIDTH][4], spec[MAX_WIDTH][4]; - general_textured_spec_triangle1(ctx,v0,v1,v2,zspan,fogspan,rgba,spec); -} - -static void lambda_textured_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - GLfloat s[MAX_WIDTH], t[MAX_WIDTH], u[MAX_WIDTH]; - lambda_textured_triangle1(ctx,v0,v1,v2,s,t,u); -} - -static void lambda_textured_spec_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - GLfloat s[MAX_WIDTH]; - GLfloat t[MAX_WIDTH]; - GLfloat u[MAX_WIDTH]; - lambda_textured_spec_triangle1(ctx,v0,v1,v2,s,t,u); -} - - -static void lambda_multitextured_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - - GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH]; - GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH]; - DEFMARRAY(GLfloat,u,MAX_TEXTURE_UNITS,MAX_WIDTH); - CHECKARRAY(u,return); - - lambda_multitextured_triangle1(ctx,v0,v1,v2,s,t,u); - UNDEFARRAY(u); } - static void occlusion_zless_triangle( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1, @@ -2199,19 +2158,18 @@ static void occlusion_zless_triangle( GLcontext *ctx, #define DO_OCCLUSION_TEST #define INTERP_Z 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE -#define INNER_LOOP( LEFT, RIGHT, Y ) \ - { \ - GLint i; \ - const GLint len = RIGHT-LEFT; \ - for (i=0;i<len;i++) { \ - GLdepth z = FixedToDepth(ffz); \ - if (z < zRow[i]) { \ - ctx->OcclusionResult = GL_TRUE; \ - return; \ - } \ - ffz += fdzdx; \ - } \ + +#define RENDER_SPAN( span ) \ + GLuint i; \ + for (i = 0; i < span.count; i++) { \ + GLdepth z = FixedToDepth(span.z); \ + if (z < zRow[i]) { \ + ctx->OcclusionResult = GL_TRUE; \ + return; \ + } \ + span.z += span.zStep; \ } + #include "s_tritemp.h" } @@ -2335,14 +2293,14 @@ _swrast_choose_triangle( GLcontext *ctx ) && ctx->Texture.Unit[0].EnvMode != GL_COMBINE_EXT) { if (ctx->Hint.PerspectiveCorrection==GL_FASTEST) { if (minFilter == GL_NEAREST - && format == GL_RGB + && format == MESA_FORMAT_RGB && (envMode == GL_REPLACE || envMode == GL_DECAL) - && ((swrast->_RasterMask == DEPTH_BIT + && ((swrast->_RasterMask == (DEPTH_BIT | TEXTURE_BIT) && ctx->Depth.Func == GL_LESS && ctx->Depth.Mask == GL_TRUE) - || swrast->_RasterMask == 0) + || swrast->_RasterMask == TEXTURE_BIT) && ctx->Polygon.StippleFlag == GL_FALSE) { - if (swrast->_RasterMask==DEPTH_BIT) { + if (swrast->_RasterMask == (DEPTH_BIT | TEXTURE_BIT)) { USE(simple_z_textured_triangle); } else { |