diff options
Diffstat (limited to 'src/mesa/vbo/vbo_exec_array.c')
| -rw-r--r-- | src/mesa/vbo/vbo_exec_array.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c index f1abe0490c4..d2cadf941bc 100644 --- a/src/mesa/vbo/vbo_exec_array.c +++ b/src/mesa/vbo/vbo_exec_array.c @@ -650,6 +650,111 @@ vbo_exec_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) } +static void GLAPIENTRY +vbo_exec_EvalMesh1(GLenum mode, GLint i1, GLint i2) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + GLfloat u, du; + GLenum prim; + + switch (mode) { + case GL_POINT: + prim = GL_POINTS; + break; + case GL_LINE: + prim = GL_LINE_STRIP; + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glEvalMesh1(mode)" ); + return; + } + + /* No effect if vertex maps disabled. + */ + if (!ctx->Eval.Map1Vertex4 && + !ctx->Eval.Map1Vertex3) + return; + + du = ctx->Eval.MapGrid1du; + u = ctx->Eval.MapGrid1u1 + i1 * du; + + CALL_Begin(GET_DISPATCH(), (prim)); + for (i=i1;i<=i2;i++,u+=du) { + CALL_EvalCoord1f(GET_DISPATCH(), (u)); + } + CALL_End(GET_DISPATCH(), ()); +} + + +static void GLAPIENTRY +vbo_exec_EvalMesh2(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2) +{ + GET_CURRENT_CONTEXT(ctx); + GLfloat u, du, v, dv, v1, u1; + GLint i, j; + + switch (mode) { + case GL_POINT: + case GL_LINE: + case GL_FILL: + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glEvalMesh2(mode)" ); + return; + } + + /* No effect if vertex maps disabled. + */ + if (!ctx->Eval.Map2Vertex4 && + !ctx->Eval.Map2Vertex3) + return; + + du = ctx->Eval.MapGrid2du; + dv = ctx->Eval.MapGrid2dv; + v1 = ctx->Eval.MapGrid2v1 + j1 * dv; + u1 = ctx->Eval.MapGrid2u1 + i1 * du; + + switch (mode) { + case GL_POINT: + CALL_Begin(GET_DISPATCH(), (GL_POINTS)); + for (v=v1,j=j1;j<=j2;j++,v+=dv) { + for (u=u1,i=i1;i<=i2;i++,u+=du) { + CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); + } + } + CALL_End(GET_DISPATCH(), ()); + break; + case GL_LINE: + for (v=v1,j=j1;j<=j2;j++,v+=dv) { + CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP)); + for (u=u1,i=i1;i<=i2;i++,u+=du) { + CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); + } + CALL_End(GET_DISPATCH(), ()); + } + for (u=u1,i=i1;i<=i2;i++,u+=du) { + CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP)); + for (v=v1,j=j1;j<=j2;j++,v+=dv) { + CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); + } + CALL_End(GET_DISPATCH(), ()); + } + break; + case GL_FILL: + for (v=v1,j=j1;j<j2;j++,v+=dv) { + CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP)); + for (u=u1,i=i1;i<=i2;i++,u+=du) { + CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); + CALL_EvalCoord2f(GET_DISPATCH(), (u, v+dv)); + } + CALL_End(GET_DISPATCH(), ()); + } + break; + } +} + + /** * Called from glDrawArrays when in immediate mode (not display list mode). */ @@ -1400,6 +1505,8 @@ vbo_initialize_exec_dispatch(const struct gl_context *ctx, if (ctx->API == API_OPENGL_COMPAT) { SET_Rectf(exec, vbo_exec_Rectf); + SET_EvalMesh1(exec, vbo_exec_EvalMesh1); + SET_EvalMesh2(exec, vbo_exec_EvalMesh2); } if (_mesa_is_desktop_gl(ctx)) { |