diff options
Diffstat (limited to 'src/mesa/shader/prog_statevars.c')
| -rw-r--r-- | src/mesa/shader/prog_statevars.c | 120 |
1 files changed, 114 insertions, 6 deletions
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c index 819db25a00..971eb25a49 100644 --- a/src/mesa/shader/prog_statevars.c +++ b/src/mesa/shader/prog_statevars.c @@ -131,7 +131,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], ADD_3V(value, p, eye_z); NORMALIZE_3FV(value); value[3] = 1.0; - } + } return; default: _mesa_problem(ctx, "Invalid light state in fetch_state"); @@ -235,11 +235,11 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], } } case STATE_TEXENV_COLOR: - { + { /* state[1] is the texture unit */ const GLuint unit = (GLuint) state[1]; COPY_4V(value, ctx->Texture.Unit[unit].EnvColor); - } + } return; case STATE_FOG_COLOR: COPY_4V(value, ctx->Fog.Color); @@ -369,7 +369,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], } } return; - + case STATE_VERTEX_PROGRAM: { /* state[1] = {STATE_ENV, STATE_LOCAL} */ @@ -469,7 +469,6 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], } - case STATE_PT_SCALE: value[0] = ctx->Pixel.RedScale; value[1] = ctx->Pixel.GreenScale; @@ -488,6 +487,20 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], case STATE_PCM_BIAS: COPY_4V(value, ctx->Pixel.PostColorMatrixBias); break; + case STATE_SHADOW_AMBIENT: + { + const int unit = (int) state[2]; + const struct gl_texture_object *texObj + = ctx->Texture.Unit[unit]._Current; + if (texObj) { + value[0] = texObj->ShadowAmbient; + value[1] = texObj->ShadowAmbient; + value[2] = texObj->ShadowAmbient; + value[3] = texObj->ShadowAmbient; + } + } + return; + default: /* unknown state indexes are silently ignored * should be handled by the driver. @@ -562,6 +575,7 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]) case STATE_INTERNAL: switch (state[1]) { case STATE_TEXRECT_SCALE: + case STATE_SHADOW_AMBIENT: return _NEW_TEXTURE; case STATE_FOG_PARAMS_OPTIMIZED: return _NEW_FOG; @@ -740,6 +754,9 @@ append_token(char *dst, gl_state_index k) case STATE_PCM_BIAS: append(dst, "PCMbias"); break; + case STATE_SHADOW_AMBIENT: + append(dst, "ShadowAmbient"); + break; default: ; } @@ -890,10 +907,101 @@ _mesa_load_state_parameters(GLcontext *ctx, for (i = 0; i < paramList->NumParameters; i++) { if (paramList->Parameters[i].Type == PROGRAM_STATE_VAR) { - _mesa_fetch_state(ctx, + _mesa_fetch_state(ctx, (gl_state_index *) paramList->Parameters[i].StateIndexes, paramList->ParameterValues[i]); } } } + +/** + * Copy the 16 elements of a matrix into four consecutive program + * registers starting at 'pos'. + */ +static void +load_matrix(GLfloat registers[][4], GLuint pos, const GLfloat mat[16]) +{ + GLuint i; + for (i = 0; i < 4; i++) { + registers[pos + i][0] = mat[0 + i]; + registers[pos + i][1] = mat[4 + i]; + registers[pos + i][2] = mat[8 + i]; + registers[pos + i][3] = mat[12 + i]; + } +} + + +/** + * As above, but transpose the matrix. + */ +static void +load_transpose_matrix(GLfloat registers[][4], GLuint pos, + const GLfloat mat[16]) +{ + MEMCPY(registers[pos], mat, 16 * sizeof(GLfloat)); +} + + +/** + * Load current vertex program's parameter registers with tracked + * matrices (if NV program). This only needs to be done per + * glBegin/glEnd, not per-vertex. + */ +void +_mesa_load_tracked_matrices(GLcontext *ctx) +{ + GLuint i; + + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { + /* point 'mat' at source matrix */ + GLmatrix *mat; + if (ctx->VertexProgram.TrackMatrix[i] == GL_MODELVIEW) { + mat = ctx->ModelviewMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_PROJECTION) { + mat = ctx->ProjectionMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_TEXTURE) { + mat = ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_COLOR) { + mat = ctx->ColorMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i]==GL_MODELVIEW_PROJECTION_NV) { + /* XXX verify the combined matrix is up to date */ + mat = &ctx->_ModelProjectMatrix; + } + else if (ctx->VertexProgram.TrackMatrix[i] >= GL_MATRIX0_NV && + ctx->VertexProgram.TrackMatrix[i] <= GL_MATRIX7_NV) { + GLuint n = ctx->VertexProgram.TrackMatrix[i] - GL_MATRIX0_NV; + ASSERT(n < MAX_PROGRAM_MATRICES); + mat = ctx->ProgramMatrixStack[n].Top; + } + else { + /* no matrix is tracked, but we leave the register values as-is */ + assert(ctx->VertexProgram.TrackMatrix[i] == GL_NONE); + continue; + } + + /* load the matrix values into sequential registers */ + if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_IDENTITY_NV) { + load_matrix(ctx->VertexProgram.Parameters, i*4, mat->m); + } + else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_INVERSE_NV) { + _math_matrix_analyse(mat); /* update the inverse */ + ASSERT(!_math_matrix_is_dirty(mat)); + load_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv); + } + else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_TRANSPOSE_NV) { + load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->m); + } + else { + assert(ctx->VertexProgram.TrackMatrixTransform[i] + == GL_INVERSE_TRANSPOSE_NV); + _math_matrix_analyse(mat); /* update the inverse */ + ASSERT(!_math_matrix_is_dirty(mat)); + load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv); + } + } +} |